Dissertations / Theses on the topic 'Crevicular gingival fluid'
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Kreidly, Mariam. "IL-34 Expression in Gingival Fibroblasts, Gingival Crevicular Fluid and Gingival Tissue." Thesis, Umeå universitet, Tandläkarutbildning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-97861.
Full textHo, Weiting. "Distribution of Systemic Macrolides to Gingiva Crevicular Fluid: Effect on Crevicular Fluid Flow." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1242760344.
Full textLast, Keith Sydney. "Glycosaminoglycans in gingival crevicular fluid in relation to bone resorption." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317010.
Full textJain, Nidhi. "Gingival crevicular fluid concentrations of azithromycin in health and gingivitis." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306783019.
Full textJin, Lijian. "Studies on host-response markers in gingival crevicular fluid and subgingival periodontopathogens : implications in assessment and monitoring of subjects with periodontal diseases /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3416-9/.
Full textPetropoulou, Polyxeni. "Alpha 1 antitrypsin in gingival crevicular fluid patients with adult periodontitis." Thesis, Queen Mary, University of London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271059.
Full textTalonpoika, Juha. "Changes in the composition of gingival crevicular fluid after periodontal treatment." Turku : Turun yliopiston, 1994. http://books.google.com/books?id=NOBpAAAAMAAJ.
Full textVollmar, Christine. "Can the Gingival Crevicular Fluid Transcriptome Predict Healing After Dental Trauma?" The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1435011386.
Full textAwawdeh, Lama Adel. "The relationship between pulpal and neuropeptide levels in pulp tissue and gingival crevicular fluid." Thesis, Queen's University Belfast, 1999. https://pure.qub.ac.uk/portal/en/theses/the-relationship-between-pulpal-and-neuropeptide-levels-in-pulp-tissue-and-gingival-crevicular-fluid(529c8bb5-df18-4a67-bf87-0fa577e0ddc1).html.
Full textRosenvall, Christopher G. "Trauma and Cytokines: Gingival Crevicular Fluid Biomarkers in Traumatized Permanent Incisors - A Pilot Investigation." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1372003396.
Full textSöder, Birgitta. "Studies on plaque distribution and gingival crevicular fluid after non-surgical treatment in smokers and non-smokers with periodontal diseases." Stockholm, 1998. http://diss.kib.ki.se/1998/91-628-2887-8/.
Full textTymkiw, Keelen D. "The influence of smoking on cytokines in the gingival crevicular fluid in patients with periodontal disease." Thesis, University of Iowa, 2008. http://ir.uiowa.edu/etd/26.
Full textUllbro, Christer. "Studies on clinical expression, genotype, and gingival crevicular fluid characteristics in young patients with Papillon-Lefèvre syndrome." Doctoral thesis, Umeå University, Odontology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-384.
Full textPapillon-Lefèvre syndrome (PLS) is an autosomal recessive condition with palmoplantar hyperkeratosis and aggressive periodontitis as cardinal features. The disorder is linked to mutations of the gene for cathepsin C, a lysosomal protease essential in activation of serine proteases in immune and inflammatory cells. The genetic background of the disorder has been identified, but its relation to phenotypic expression is obscure.
The aims of the project were to explore phenotypic expression in young patients with PLS, and to investigate any correlation between clinical expression and identified genotype. Additionally, biochemical properties of gingival crevicular fluid (GCF) were investigated, and the result of an oral treatment protocol based on plaque control was evaluated.
Major results and conclusions from the studies were:
The severity of the skin lesions showed no correlation to patient’s age or level of periodontal disease, supporting the concept that the two major components of PLS are independent of each other.
Genotyping revealed two cardinal genotypes, but no correlation between the identified genotypes and expression of phenotypes could be found, suggesting that it is the interaction with environmental factors and/or other genes that is important in shaping the phenotype.
Analyses of gingival crevicular fluid (GCF) from patients with PLS did not show any clear-cut pathognominic expressions with regard to content of cytokines, metalloproteinases or inhibitor of metallproteinase 1.
The level of plasminogen activator inhibitor in GCF was significantly higher in PLS patients than in controls, indicating atypical activity of the plasminogen activating system with, possibly, disturbed epithelial function. This may affect the epithelial barrier function and its role in the innate defence system.
Evaluation of a PLS oral treatment protocol showed treatment from an early age and compliance to the program to be important in preserving permanent teeth in PLS.
Ullbro, Christer. "Studies on clinical expression, genotype, and gingival crevicular fluid characteristics in young patients with Papillon-Lefè̀vre syndrome /." Umeå : Univ, 2004. http://publications.uu.se/umu/theses/abstract.xsql?dbid=384.
Full textKennett, Craig Nader. "Comparative histochemical, immunocytochemical and biochemical studies of proteases and their inhibitors in human gingival tissue and crevicular fluid." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336540.
Full textMelo, Rafaela Fernanda [UNESP]. "Análise da citocina IL-1ß e do polimorfismo do gene IL-1B + 3954 em pacientes com implantes osseointegrados." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/96203.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Universidade Estadual Paulista (UNESP)
O objetivo deste estudo foi avaliar a concentração de interleucina-1 ß (IL-1ß) e o polimorfismo na posição +3954 do gene IL-1B em pacientes com a prótese sobre implante, em função, a pelo menos um ano. Vinte e cinco implantes, clinicamente satisfatórios, foram avaliados, em vinte pacientes saudáveis, sendo doze do gênero feminino e oito masculino. Exame clínico completo foi feito em todos os implantes e em um dente em condição de saúde de cada paciente. Amostra do sítio com maior profundidade de sondagem foi coletada para a quantificação da concentração de IL-1ß no fluido crevicular periimplantar/gengival. Células da mucosa bucal foram coletadas para extração do DNA genômico e análise do polimorfismo IL-1B +3954. Não foi detectada a presença da citocina IL-1ß nos sítios avaliados. Na população estudada houve uma predominância do genótipo homozigoto para o alelo C, o qual esteve presente em 75% dos pacientes avaliados. O genótipo homozigoto para o alelo T foi encontrado em apenas um (5%) paciente. Neste estudo não observamos uma relação entre a presença do alelo T e níveis aumentados de IL-1ß no fluido crevicular.
The aim of the present study was to determine interleukin-1ß (IL-1ß) levels and the polymorphism IL-1B +3954 in patients with implant loaded at least for one year. Twenty five healthy implans from twelve patients, twenty female and eight male, were examined. Clinical parameters were recorded from all implants and one teeth from each patient. Gingival crevicular fluid from the highest pocket depth was collected, with PerioPaper, to evaluate the level of the IL-1ß. Cells from buccal mucosa were collected for genomic DNA extraction and analyze the polymorphism IL-1B +3954. IL-1ß was not detected in any sites collected. At the studied population we observed prevalence from negative genotype, present in 75% of patients. The positive genotype was observed only in one (5%) patient from the population. Negative genotype is associated with health implants, and are nor related to elevated levels of IL-1ß on the crevicular fluid.
Ashley, Amanda. "Immune Mediators in Gingival Crevicular Fluid as Predictors of Healing Outcomes in Re-Implanted Permanent Incisors – A Pilot Investigation." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338376024.
Full textChien, Esther. "16S analysis of the subgingival biofilm and cytokine profile in patients receiving fixed orthodontic treatment." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu161485602285181.
Full textMedeiros, Bruno Rescala Conde de. "Perfil imunológico e microbiológico de pacientes com periodontites crônica e agressiva." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2577.
Full textThe goal of this study was to determine the gingival crevicular fluid (GCF) levels of interleukin-1β (IL-1β), IL-2, IL-4, IL-8 and interferon-γ (IFN-γ) and elastase activity from patients with generalized chronic (GCP) and generalized aggressive periodontitis (GAgP) and to compare with a control group with gingivitis subjects. A secondary aim was to analyze the microbiological profile of these subjects. Cross-sectional clinical data were obtained from 20 GCP, 17 GAgP and 10 gingivitis subjects. GCF samples were collected with paper strips and the levels of: IL-1β, IL-2, IL-4, IL-8, and IFN-γ measured using a multiplexed bead immunoassay (Luminex). Elastase activity was assessed by an enzymatic assay. Subgingival plaque samples were analyzed using checkerboard DNA-DNA hybridization. Significance of differences among groups for immunological and microbiological data was examined using Kruskal-Wallis adjusting for multiple comparisons. Mean clinical parameters and GCF volumes were higher in GCP and GAgP patients compared to controls. Higher levels of IL-1β and higher elastase activity were found in deep sites compared to shallow sites in both periodontitis groups (p<0.05). The microbiological data showed significantly higher levels of the Red complex species in GCP and GAgP patients compared to controls (p<0.05). There were no statistically significant differences in levels of GCF biomarkers and in levels of subgingival bacterial species between GCP and GAgP subjects. In conclusion, there were no statistically significant differences in the measured immunological and microbiological parameters between GCP and GAgP subjects.
Melo, Rafaela Fernanda. "Análise da citocina IL-1ß e do polimorfismo do gene IL-1B + 3954 em pacientes com implantes osseointegrados /." Araraquara : [s.n.], 2006. http://hdl.handle.net/11449/96203.
Full textAbstract: The aim of the present study was to determine interleukin-1ß (IL-1ß) levels and the polymorphism IL-1B +3954 in patients with implant loaded at least for one year. Twenty five healthy implans from twelve patients, twenty female and eight male, were examined. Clinical parameters were recorded from all implants and one teeth from each patient. Gingival crevicular fluid from the highest pocket depth was collected, with PerioPaper, to evaluate the level of the IL-1ß. Cells from buccal mucosa were collected for genomic DNA extraction and analyze the polymorphism IL-1B +3954. IL-1ß was not detected in any sites collected. At the studied population we observed prevalence from negative genotype, present in 75% of patients. The positive genotype was observed only in one (5%) patient from the population. Negative genotype is associated with health implants, and are nor related to elevated levels of IL-1ß on the crevicular fluid.
Orientador: Glória Maria de Azevedo Thompson Galli
Coorientador: Rosemary cristina Chiérice Marcantonio
Banca: Raquel Mantuaneli Scarel Caminaga
Banca: Jamil Awad Shibli
Mestre
Junior, Rivail Antonio Sergio Fedel. "Alteração do volume de fluido gengival de pacientes com periodontite crônica em manutenção periodontal sob tratamento ortodôntico: estudo piloto." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3083.
Full textO objetivo do estudo foi mensurar as alterações na quantidade do volume de fluido gengival (FG) dos dentes submetidos à movimentação ortodôntica, em adultos com periodontite crônica na fase de manutenção periodontal. O FG foi coletado com uma tira de papel absorvente padrão das áreas de pressão dos dentes de 10 pacientes (sete homens e três mulheres) e medido em microlitro no Periotron em seis dias distintos (dia -7, dia 0, dia 1, dia 7, dia 14 e dia 21). Os pacientes foram submetidos a um rigoroso programa de controle de placa. O teste de Wilcoxon foi aplicado para comparar os dados obtidos. Os resultados mostraram que o controle de placa efetivo baixou a quantidade de FG do dia -7 para o dia 0, e em seguida houve uma elevação do FG até o dia 7 por conta do início da movimentação ortodôntica, e uma nova queda do dia 7 até o 21. O maior volume de FG foi encontrado no dia 7, uma semana após o início da movimentação. O menor volume no dia 0. Concluindo, a movimentação ortodôntica aumentou o volume de FG do dia 0 até o dia 7.
The aim of this study was to measure the alterations in the amount of gingival crevicular fluid (GCF) of teeth during orthodontic tooth movement in adults with chronic periodontitis under a periodontal maintenance program. The GCF was collected with paper stripes from pression sides of teeth in 10 patients (7 males and 3 females) and measured in microlitres on Periotron in six distinct periods of time (day -7, day 0, day 1, day 7, day 14, day 21). Patients were under supervised program of plaque control. Wilcoxon test was applied to compare the data. The results shown that the effective plaque control reduces the amount of GCF from day -7 to day 0, followed by an elevation until day 7 after the beginning of orthodontic tooth movement and a new reduce from day 7 to 21. The highest amount of GCF was found on day 7, one week after the beginning of tooth movement, while the smallest found on day 0.
Czownicka, Marta [Verfasser]. "Determination of active matrix metalloproteinase 8 (aMMP-8) levels in the gingival crevicular fluid as a diagnostic test during periodontal maintenance therapy / Marta Czownicka." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2016. http://d-nb.info/1119803012/34.
Full textTeixeira, Nancielli. "Influência de diferentes resinas compostas e técnicas de polimento sobre os tecidos periodontais próximos a lesões cervicais não cariosas avaliação clínica randomizada." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/734.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
The aim of this study was to evaluate the influence of different composite resins and technical polishing and finishing over periodontals tissues and gingival crevicular fluid in cervical lesions restorations noncarious (LCNC). Initially were evaluated 272 teeths of patients with complaints related to LCNC and, acordding to the inclusion and exclusion criteria were selected 60 teeths for elegibility. Each tooth received a restoration with a kind of composite resin (Resin Tetric N-Ceram® or Resin Z350 XT®) in both quadrants, varying the polishing technique ( Astropol® Polishing rubber or Sof-lex® Disks). Periodontal tissues analysis, the longitudinal evaluation of restaurations and the gengival crevicular fluid collect were taken prior to scalling and root planning and also at 30, 60, 120 and 180 days of restaurations making. After the data collection and tabulation , these were submited to the Friedman test, with a significance level of 5%. The results revealed that resins and polishing techniques applied in this study showed no estatistical differences at the end of follow-up in any of the analyzes. However all groups evaluated showed differences between the initial and final times (p <0.05). From the results obtained it was concluded that regardless of the restorative material or polishing technique, the restoration of LCNC cavities improved the periodontal health of patients
O objetivo desse trabalho foi avaliar a influência de diferentes resinas compostas e técnicas de acabamento e polimento sobre os tecidos periodontais e o fluído crevicular gengival em restaurações de lesões cervicais não cariosas. Foram avaliados inicialmente 272 dentes de pacientes com queixas relacionadas à LCNC e, a partir dos critérios de inclusão e exclusão definidos, foram selecionados para elegibilidade 60 dentes, divididos em 4 grupos com N:15 dentes. Cada dente recebeu restauração com um tipo de resina composta nanoparticulada (Resina Tetric N-Ceram® ou Resina Z350 XT®) nos dois hemiarcos, variando a técnica de polimento (Borrachas de polimento Astropol® ou Discos Sof-lex®). A análise periodontal dos tecidos, a avaliação longitudinal das restaurações e a coleta do fluido crevicular gengival foram realizadas antes da raspagem e alisamento corono-radicular, e também aos 30, 60, 120 e 180 dias após a confecção das restaurações. Após a obtenção e tabulação dos dados, esses foram submetidos ao teste de Friedman, com nível de significância de 5%. Os resultados revelaram que as resinas e as técnicas de polimento utilizadas neste estudo não apresentaram diferenças estatísticas ao final do período de acompanhamento em nenhuma das análises. Porém, todos os grupos avaliados apresentaram diferenças entre os tempos iniciais e finais (p<0,05). A partir dos resultados obtidos foi possível concluir que, independente do material restaurador ou da técnica de polimentos utilizada, a restauração das cavidades de LCNC proporcionou melhora da saúde periodontal dos pacientes
Bernardon, Paula. "Efeito do tratamento periodontal em pacientes com Diabetes Mellitus Tipo 2 moderadamente compensados e descompensados." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/736.
Full textFundação Araucária
Aim: Recent studies demonstrate Diabetes Mellitus (DM) as a risk factor for the impairment of periodontal health and a growing body of evidence has been supporting periodontal disease (PD) as having an adverse effect on glycemic control and on the pathophysiology of the diabetes-related complications. This study aims to evaluate the effect of periodontal therapy immoderately compensated and decompensated type 2 diabetic patients. Subjects and methods: 40 patients with DM2 and periodontal disease were selected and divided into two groups: Group 1: Moderately compensated; Group 2: Decompensated. Of these 40 patients, only 35 participated in the study. The analyses were performed at 0, 3 and 6 months after scaling and root planning and including clinical periodontal parameters and the quantification of gingival crevicular fluid (GCF). Glycated hemoglobin (HbA1c), fasting glucose (FG) and IL1-β expression were measured. Results: Both groups presented improvement in all clinical periodontal parameters as well as quantification of gingival crevicular fluid and in the expression of IL-1ß present in the fluid after 6 months. However, no statistically significant difference was found in the levels of HbA1C in the first group after 6 months, although a significant increase was found after six months in the other group. While in relation to the FG, a great improvement was found in the first group and a significant increase in the second group after six months. Conclusion: It was possible to observe that conventional periodontal treatment (scaling and root planing) is more effective for moderately compensated type 2 diabetic patients glycemic control rather than for the decompensated patients.
Estudos recentes demonstraram o Diabetes Mellitus (DM) como um fator de risco para o comprometimento da saúde periodontal e crescentes evidências apontam que a doença periodontal (DP) tem um efeito adverso sobre o controle glicêmico e uma participação ativa na fisiopatologia das complicações relacionadas ao DM. Objetivo: Avaliar o efeito do tratamento periodontal em pacientes portadores de Diabetes Mellitus tipo 2 moderadamente compensados e descompensados. Metodologia: Foram selecionados 40 pacientes com DM2 e periodontite, estes foram divididos em dois grupos: Grupo 1: moderadamente compensados; Grupo 2: descompensados. Destes 40 pacientes, apenas 35 participaram do estudo. As análises foram realizadas aos 0, 3 e 6 meses após raspagem e alisamento radicular, incluindo parâmetros clínicos periodontais e a quantidade de fluido crevicular gengival (GCF). Foram dosadas a hemoglobina glicada (HbA1c), a glicemia em jejum (GJ) e a expressão IL1β. Resultados: Houve uma melhora de todos os parâmetros clínicos periodontais avaliados em ambos os grupos, assim como da quantidade de GFC e dos níveis de IL-1ß presentes no fluído após um período de 6 meses. No entanto, em relação aos níveis de HbA1c, estatisticamente, não houve alteração ao final dos 6 meses no grupo moderamente compensado, enquanto nos descompensados, houve um aumento significativo ao final dos 6 meses. Já com relação à GJ, houve uma melhora significativa no primeiro grupo e um aumento significativo no segundo grupo ao final dos 6 meses. Conclusão: Sendo assim, pode-se concluir que o tratamento periodontal básico (raspagem e alisamento radicular convencional) foi mais efetivo para o controle glicêmico dos pacientes com diabetes tipo 2 moderadamente compensados do que nos descompensados.
Gonçalves, Rogéria Pereira. "Efeito do tratamento periodontal não cirúrgico na atividade da peroxidase na saliva da glândula parótida e no fluído gengival." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/23/23146/tde-15012013-165555/.
Full textTwo important and interrelated factors are involved in the pathophysiology of periodontal diseases: the activation of immune system and the production of peroxidases. The objectives of this study were to examine the peroxidase activities present in Gingival Crevicular Fluid (MPO/GCF) and in Parotid Saliva (POS) in patients with generalized chronic periodontitis with healthy controls and to compare the effects of periodontal therapy on enzyme activities. MATERIAL AND METHOD: Periodontal clinical measurements, parotid saliva and GCF samples were obtained of 17 age-matched healthy controls (PC) and 17 patients with chronic periodontal disease (PD) before treatment and after periodontal treatment. The MPO/GCF and POS parotid activities were determined spectrophotometrically. RESULTS: In PD group, clinical parameters, MPO/GCF (p=0,04) activities presented higher values than controls. After periodontal treatment levels of MPO/GCF (p<0.001) and POS parotid (p=0,013) were significantly reduced. In PD there was significant negative correlation between POS and MPO in the parotid FG (r =-0,59, p=0,02). CONCLUSIONS: In periodontal disease MPO/GCF presented higher levels than controls and MPO/GCF and POS parotid are reduced after treatment.
Melo, Rafaela Fernanda. "Avaliação clínica, microbiológica, imunológica e genética em pacientes com implantes osseointegrados /." Araraquara : [s.n.], 2009. http://hdl.handle.net/11449/104703.
Full textAbstract: The aim of the present study was to evaluate clinical, microbiological, immunological and genetics parameters in patients with implant loaded at least for one year. It was examined 47 implants and teeth in 47 patients. Thirty one of those implants were healthy implants (G I), sixteen had peri-implantits (G II) and, 31 healthy teeth was from patients with healthy implants (G III) and 16 healthy teeth from patients with peri-implantits (G IV). Clinical parameters were recorded from all implants and teeth. Gingival crevicular fluid from the highest pocket depth was collected to evaluate the presence of A. actinomycetemcomitans, P. gingivalis, P. intermedia, P. nigrescens e T. ForsythiaI and to evaluate the concentration of interleukin-1β and interleukin-6. Cells from buccal mucosa were collected for genomic DNA extraction and analyze the polymorphism IL-1B +3954, IL-1B -511 e IL-6 -174. G II demonstrated worst results for PD, BPD, Sup and NI when compared to G I and, when compared with G IV it was worst for PD and NI. Microbiological did not detect A. actinomycetemcomitans in any of the sites analysed and, P. intermedia was not detected in G II. Bacteria analyzed was present in same proportion in all analyzed sites showing, no differences between groups. There was no difference in the concentration of IL-1β an IL-6 detected between groups. The population studied was in Hardy-Weinberg Equilibrium. There was no differences in the alleles and polymorphism distribution on the studied population.
Orientador: Glória Maria de Azevedo Thompson Galli
Coorientador: Rosemary Adriana Chierici Marcantonio
Coorientador: Elcio Marcantonio Junior
Banca: Débora Pallos
Banca: Eduardo Saba-Chujfi
Banca: José Eduardo César Sampaio
Banca: Joni Augusto Cirelli
Doutor
Melo, Rafaela Fernanda [UNESP]. "Avaliação clínica, microbiológica, imunológica e genética em pacientes com implantes osseointegrados." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/104703.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O objetivo deste estudo foi o de avaliar possíveis interações clínicas, microbiológicas, imunológicas e genéticas que possam influenciar o sucesso de implantes osseointegrados. Foram avaliados 47 implantes, em 47 pacientes, sendo 31 em condições de saúde (G I) e 16 com perimplantite (G II) e 47 dentes, dos quais 31 estavam sadios e eram dos pacientes com implantes sadios (G III) e 16 dentes sadios dos pacientes com perimplantite (G IV). Foi realizado exame clínico completo em todos os implantes e dentes selecionados. Amostras de fluido crevicular perimplantar/gengival do sítio com maior profundidade de sondagem foram coletadas. A avaliação das bactérias A. actinomycetemcomitans, P. gingivalis, P. intermedia, P. nigrescens e T. forsythia foi realizada pela técnica de PCR e, a quantificação das citocinas IL-1β e IL-6 foi realizada pelo teste ELISA. Células da mucosa bucal foram coletadas para avaliação dos polimorfismos IL1B+3954, IL1B-511 e IL6-174. A avaliação estatística dos parâmetros clínicos SS, SUP, PS e NI revelaram que os implantes do grupo G II apresentaram piores condições clínicas em comparação ao grupo G I. O grupo G II também apresentou piores condições clínicas que o grupo G IV para PS e NI. A análise microbiológica revelou que a bactéria A. actinomcetemycomitans não estava presente em nenhum sítio avaliado. P. intermedia também não foi encontrada no grupo G II. As bactérias estudadas apresentaram proporções semelhantes em todos os grupos avaliados, não havendo diferença entre os grupos. Na análise da concentração de IL-1β e IL-6, não houve diferenças significativas entre os grupos. A população estudada está em Equilíbrio de Hardy-Weinberg. Os polimorfismos estudados não demonstraram predominância dos alelos e dos genótipos. Nenhum polimorfismo foi associado à condição de doença.
The aim of the present study was to evaluate clinical, microbiological, immunological and genetics parameters in patients with implant loaded at least for one year. It was examined 47 implants and teeth in 47 patients. Thirty one of those implants were healthy implants (G I), sixteen had peri-implantits (G II) and, 31 healthy teeth was from patients with healthy implants (G III) and 16 healthy teeth from patients with peri-implantits (G IV). Clinical parameters were recorded from all implants and teeth. Gingival crevicular fluid from the highest pocket depth was collected to evaluate the presence of A. actinomycetemcomitans, P. gingivalis, P. intermedia, P. nigrescens e T. ForsythiaI and to evaluate the concentration of interleukin-1β and interleukin-6. Cells from buccal mucosa were collected for genomic DNA extraction and analyze the polymorphism IL-1B +3954, IL-1B -511 e IL-6 -174. G II demonstrated worst results for PD, BPD, Sup and NI when compared to G I and, when compared with G IV it was worst for PD and NI. Microbiological did not detect A. actinomycetemcomitans in any of the sites analysed and, P. intermedia was not detected in G II. Bacteria analyzed was present in same proportion in all analyzed sites showing, no differences between groups. There was no difference in the concentration of IL-1β an IL-6 detected between groups. The population studied was in Hardy-Weinberg Equilibrium. There was no differences in the alleles and polymorphism distribution on the studied population.
Villafuerte, Kelly Rocio Vargas. "Efeitos do tratamento periodontal não-cirúrgico sobre o perfil de citocinas inflamatórias em pacientes com periodontite crônica e câncer de mama submetidos à quimioterapia." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/58/58132/tde-23022018-151200/.
Full textPatients with breast cancer undergoing chemotherapy have increased levels of inflammatory markers, which may worsen pre-existing periodontal conditions. The aim of this study was to evaluate the effect of non-surgical periodontal treatment (NSPT) and to establish a correlation between clinical parameters and levels of cytokines present in the gingival crevicular fluid (GCF) before and after NSPT. Forty individuals were allocated in two groups; patients with chronic periodontitis (PC) (n = 20) and patients with breast cancer with chronic periodontitis (CAN/PC) (n = 20). The following clinical and immunological parameters were analyzed: i) probing depth (PD), clinical attachment level (CAL), gingival index (GI), plaque index (PI), ii) levels of Interleukin (IL) - 4, IL-10, IL-17, IL-2, IL-6, IL-1β, Interferon gamma (INF-&gama;), tumor necrosis factor (TNF-α), transforming growth factor beta (TGF-β) in gingival crevicular fluid (Luminex) in baseline, 45 days and 180 days after NSPT. The data were statistically analyzed. In the comparisons between groups: At the baseline, the PC group had higher levels of INF-&gama; and low levels of IL-10 and TGF-β when compared to the CAN/PC group. At 45 days, the CAN/PC group had lower levels of TNFα- (p <0.0001) compared to the PC group. In 180 days, the PC group had lower levels of INF-&gama; (p <0.001), IL-2 (p < 0. 001), TNF-α (p <0.0001), and higher levels of IL-10 (p < 0.01) and TGF-β (p < 0.001), compared to the CAN/PC group. In comparisons between periods: The CAN/PC group showed a significant reduction of IL-2 at 45 and 180 days (p < 0.05) compared to baseline, TNF-α had a reduction at 45 days, when compared to baseline (p < 0.0001). In addition, there was a significant reduction of TGF-β at 180 days when compared to the baseline (p < 0.0001), while IL-1β increased at 45 days when compared to baseline (p < 0.05). The P group showed a significant reduction of INF-&gama; at 180 days when compared to baseline (p < 0.0001) and 45 days, (p <0.05). In the same manner, IL-2 and TNF-α had a reduction at 180 days when compared to baseline (p < 0.0001) and 45 days (p <0.0001). Likewise, there was an increase of TGF-β at 180 days when compared to the baseline (p < 0.05) and at 45 days (p <0.0001). IL-17, IL-6 and IL-4 had no statistically significant differences between groups in all time points. In the analysis of correlation between the clinical parameters and the cytokine levels of the GCF: In the CAN/P group, a significant positive correlation was found between PD and TNF-α levels (r = 0.6489, p = 0.002) at baseline. IL-17 was positively correlated with PD reduction (r=0.4596, p = 0.04) at 180 days; also IL-6 was significantly positively correlated with PD reduction and CAL gain (r = 0.4513, p = 0.05, r = 0.5578, p = 0.01, respectively) at 180 days. In the P group, IL-17 was also positively correlated with PD and CAL (r = 0.4558, p = 0.04, r = 0.5447, p = 0.01, respectively) at baseline. IL-1β was positively correlated with PD reduction and CAL gain (r = 0.5538, p = 0.01, r = 0.5902, p = 0.006, respectively) at 45 days. A negative correlation was found between IL-4 and CAL gain (r = -0.4981, p = 0.03) at 180 days. In conclusion, these data suggest that NSPT reduces antigenic stimuli and consequently helps to reduce the inflammatory burden in breast cancer patients with chronic periodontitis.
Almeida, Rhita Cristina Cunha. "Efeito do movimento dentário nos níveis de metaloproteinases da matriz no fluido gengival de pacientes com periodontite controlada." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7216.
Full textO objetivo deste trabalho foi examinar o impacto da movimentação dentária de dentes periodontalmente comprometidos no volume do fluido gengival crevicular (FGC) e nos níveis de expressão das metaloproteinases de matriz (MMPs) -1, -2, -3, -7, -8, -12 e -13 no FGC. Dez pacientes periodontalmente controlados (8 do sexo feminino e 2 do sexo masculino, média de idade de 46,2 10,4 anos) com incisivos projetados labialmente foram submetidos a tratamento ortodôntico. Uma arcada dentária foi submetida a movimentação ortodôntica e a arcada oposta foi usada como controle. Amostras de FGC foram coletadas da face lingual de dois incisivos do lado movimento e dois do lado controle uma semana antes da ativação ortodôntica (-7d), imediatamente após a ativação ortodôntica, e após 1 h, 24 h, e 7, 14 e 21 dias. A coleta do FGC foi feita utilizando-se tiras de papel absorvente e o volume foi calculado através do uso do Periotron. Todos os pacientes receberam orientações de higiene bucal e um kit contendo escova de dente, pasta de dente e bochecho de Chlorexidina 0,12% para ser usado durante todo o experimento. A técnica da multianálise imunoenzimática com microesferas foi usada para medir as MMPs no FGC. Os dados foram analisados utilizando-se os testes estatísticos Friedman e Mann-Whitney. Não foram encontradas diferenças estatisticamente significativas no volume do FGC. Em relação aos níveis de MMPs, a única diferença estatisticamente significativa encontrada no decorrer do tempo foi nos níveis de MMP-1 no grupo movimento (p<0,05). Quando os dois grupos foram comparados após a ativação, a única diferença estatisticamente significativa encontrada foi nos níveis de MMP-12 24 horas após a ativação (p<0,05). Estes achados sugerem que o volume de FGC não sofre alteração relacionada ao movimento dentário ortodôntico e que o movimento ortodôntico de dentes periodontalmente comprometidos não resultou em mudanças significativas nos níveis de MMPs no FGC.
The aim of this study was to evaluate whether orthodontic tooth movement of periodontally compromised teeth would result in detectable changes in gingival crevicular fluid (GCF) volume and in the levels of matrix metalloproteinases (MMP) -1, -2, -3, -7, -8, -12 and -13 in the GCF. Ten controlled periodontitis subjects (8 females and 2 males, mean age of 46.2 10.4 years) with flared incisors were submitted to orthodontic treatment. One dental arch was subjected to orthodontic movement, and teeth in the opposite arch were used as controls. GCF samples were collected from the lingual sites of two test and two control incisors one week before orthodontic activation (-7d), immediately after orthodontic activation, and after 1 h, 24 h, and 7, 14 and 21 days. Filter paper strips were used in combination with a Periotron for GCF volume measurements. All patients received hygiene instructions and a kit containing toothbrush, fluoride dentifrice and gluconate chlorexidine 0.12% mouthwash to be used during all experiment. Multiplexed bead immunoassay was used to measure MMPs in GCF. Data were analyzed using Friedman and Mann-Whitney statistical tests. There were no statistically significant differences over time in the GCF volume for any of the two groups. Regarding the MMPs levels, the only significant change found over time was in the levels of MMP-1 in the movement group (p<0.05). When the two groups were compared after activation, the only statistically significant difference found was in levels of MMP-12 24 h after activation (p<0.05). This findings suggested that the GCF volume could not be associated to orthodontic movement and that the orthodontic movement of periodontally compromised teeth did not result in significant changes in the GCF levels of MMPs.
Lomba, Karina Schittine Bezerra. "Utilização de biópsias gengivais minimamente invasivas para o estudo da expressão de mediadores inflamatórios e sua correlação com a expressão do fluido gengival em pacientes com periodontite severa." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8974.
Full textThe aim of this study was to use minimally invasive biopsies to evaluate the expression of inflammatory mediators and their correlation with gingival fluid in patients with severe periodontitis. The test group comprised 22 patients with severe periodontitis (mean age 45.5 8.9 years SD), analyzed by shallow and deep sites and the control group for 14 periodontally healthy patients (mean age 39.35 SD 16.5 years). Gingival fluid samples were collected with absorbent paper in the same sites where biopsies were performed, and quantified by Luminex to IFN-γ, IL-1 β, IL-6, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IL-4, IL-6, IL-10, IL-17A, IL-17F, TNF and sCD40L. Biopsies were taken with a 2 mm diameter punch in both groups. Immunohistochemistry was semiquantitative evaluated, comprising epithelial cells, plasma cells, macrophages, fibroblasts and endothelial cells, to IL1-β, IFN-γ, IL-6 and IL-17. Immunohistochemical markers were observed in the analyzed cells groups, both in periodontitis patients as in controls, without significant differences between them. The gingival fluid showed higher amounts for IL-1β and IL-23 in deep sites. No significant correlations between immunohistochemical markers and GCF were found. In the comparative analysis between immunohistochemical markers and GCF, IL1-β showed high concordance in shallow and deep sites. In conclusion, the use of a standardized punch 2mm diameter for periodontal tissue biopsies proved to be feasible for studies with immunohistochemistry. The gingival fluid may not express all the markers of the corresponding tissue, with variations depending on the analysed marker and local inflammatory conditions.
Junior, Wilson Rosalem. "Efeito do tratamento periodontal não cirúrgico em pacientes com periodontite crônica e agressiva: achados microbiológicos e imunológicos." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2599.
Full textOur aim was to compare the expression of IL1β, IL-4, IL-8, INF-γ, elastase activity and the composition of the subgingival microbiota profile before and after non-surgical periodontal treatment in patients with untreated generalized chronic (GCP) and aggressive periodontitis (GAgP). Twenty patients with GCP and 14 with GAgP were evaluated. Clinical data, GCF and plaque were analyzed at baseline and 3 months after non-surgical periodontal treatment. IL-1β, IL-4, IL-8 and INFγ were analyzed in a luminex assay. Elastase activity was assessed by an enzymatic assay. Subgingival plaque samples were analyzed using checkerboard DNA-DNA hybridization. Three months after periodontal therapy significant improvement for all clinical parameters in both groups were found. We have found significant reductions in the elastase activity in shallow and deep sites from GAgP and in deep sites from GCP group. A significant increase in INF-γ in the shallow sites from GAgP group were also found. Microbiological data showed significant reductions in the levels of members of the red complex (P. gingivalis, T. forsythia, T. denticola), and for the species E.nodatum and P.micra on GCP group. In the GAgP group, there were significant reductions in levels of P. gingivalis, T. forsythia, Fusobacterium nucleatum and Fusobacterium polymorphum ss periodonticum. When the clinical and immunological responses after therapy were compared between groups, only slight differences were found. No microbiological difference was found between groups after therapy. In conclusion, the findings support our hypothesis that the chronic and aggressive periodontitis respond equally well to non-surgical periodontal treatment.
Lomba, Karina Schittine Bezerra. "Impacto da terapia mecânica não cirúrgica em pacientes com periodontite crônica e agressiva generalizadas." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2856.
Full textThe aim of this study was to investigate the impact of non-surgical mechanical treatment on elastase activity and gingival crevicular fluids (GCF) volume of patients with untreated generalized chronic and aggressive periodontitis. Eighteen patients with generalized chronic periodontitis (mean age 48,6 SD 7,5 years old) and eleven with generalized aggressive periodontitis (mean age 27,9 SD 6,54 years old) were evaluated. The clinical parameters adopted were pocket probing depth (PPD) (mm); attachment level (AL) (mm) and bleeding on probing (PB). Clinical measures and GCF were collected from the 5 deepest sites (P) and from 5 shallow sites with gingivitis (G) from each patient of each group, before and 90 days after non- surgical periodontal treatment. There were adopted the following clinical steps: patients selection and periodontal exam; GCFs collection; periodontal treatment; re- evaluations, comprising periodontal exams and GCFs collection. The periodontal treatment lasted about about 4 sections with 40 minutes each, 1 section per week. Re-evaluations were performed 90 days after completion of the treatment. Wilcoxons statistic test compared the data before and after treatment and Mann-Whitneys non parametric U-test was used to compared chronic and aggressive periodontitis groups. There were no significant differences for all clinical parameters analysed before and after treatment,except for pocket probing depth on shallow sites (p = 0,039) and for bleeding on probing (p = 0,021) on deep sites, both in lower levels in chronic periodontitis after treatment. The elastases activity showed, after treatment, a significant reduction on deep sites for chronic (p = 0,012) and aggressive (p = 0,02) periodontitis. In concern to GCFs volume, there was significant reduction on both chronic and aggressive periodontitis, in shallow (p = 0,03 e p = 0,03) and in deep pockets (p ˂ 0,001 e p = 0,003), respectively, after treatment. In conclusion, both groups responded simmilarly to the mechanical non- surgical treatment. Moreover, non- surgical periodontal treatment showed significant reductions on GCFs volume on all analysed sites and reduction on neutrophilics activity, on deep sites followed by the significant reduction on clinical indicators after treatment.
Ianev, Deniza [Verfasser]. "Analysis of calprotectin, PMN elastase, MMP-8 and IL-1β in microliter volumes of gingival crevicular fluid - suitability as prognostic factors for the recession after soft tissue management / Deniza Ianev." Ulm : Universität Ulm, 2017. http://d-nb.info/1137557583/34.
Full textMartins, Cristiane Canavarro Rodrigues. "Avaliação dos níveis de metaloproteinases da matriz no fluido gengival durante a movimentação dentária ortodôntica." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2907.
Full textDurante o tratamento ortodôntico, a resposta inicial dos tecidos periodontais ao estímulo mecânico envolve várias alterações estruturais e bioquímicas que permitem a movimentação do dente. As metaloproteinases da matriz (MMPs) parecem desempenhar um papel importante na manutenção da integridade funcional da matriz extracelular periodontal. O objetivo do presente estudo foi avaliar, em diferentes intervalos de tempo, os níveis de metaloproteinases da matriz -1, -2, -3, -7, -8, -12 e -13 no fluido gengival (FG) de caninos superiores submetidos ao movimento de distalização e testar a hipótese de possíveis alterações nos níveis destas MMPs com o emprego de forças ortodônticas. Amostras de FG foram obtidas de dezesseis pacientes ortodônticos saudáveis (nove do sexo masculino e sete do sexo feminino, com idades entre 13 e 27 anos, média de idade 17,7 anos) que possuíam indicação de exodontias dos primeiros pré-molares superiores e tiveram os caninos distalizados como parte da terapia ortodôntica. Um dos caninos superiores foi distalizado ortodonticamente, sendo considerado dente teste. O canino contralateral não foi submetido a nenhuma força, no entanto foi incluído na aparatologia ortodôntica e utilizado como controle. A coleta de FG foi realizada nos sítios mesial (tensão) e distal (pressão) dos dentes testes e controles 7 dias antes da montagem da aparatologia ortodôntica, imediatamennte após a aplicação da força ortodôntica, e após 1 h, 24 h, e 7, 14 e 21 dias, respectivamente denominados -7d, 0h, 1h, 24h, 7d, 14d e 21d. A arcada superior de cada paciente foi dividida em um lado teste e um lado controle. Os resultados mostraram que foram encontradas diferenças significativas no volume do FG apenas nos intervalos de tempo entre -7d e 0h nos lados controle-pressão (CP), teste-tensão (TT) e teste-pressão (TP). Em TP foi observado ainda aumento do volume entre os tempos 0h e 14d. Foi possível detectar no FG as MMPs estudadas nos lados controle/teste e lados pressão/tensão, em todos os intervalos de tempo. As flutuações dos níveis das MMPs apresentaram poucas alterações significativas nos diferentes intervalos de tempo, nos lados controle/teste e lados pressão/ tensão. As diferenças intergrupos (TT, TP, CT e CP) em cada tempo não mostraram resultados significativos assim como as comparações entre os lados pressão e tensão para cada tempo individualmente. Os níveis de expressão da MMP-8 foram muito superiores aos das outras MMPs avaliadas, porém sem diferenças signficativas entre os lados teste e controle.
During orthodontic treatment, the initial response of periodontal tissues to mechanical stress involves several structural and biochemical changes that allow the tooth movement. The matrix metalloproteinases (MMPs) seem to play an important role in maintaining the functional integrity of periodontal extracellular matrix. The aim of this study was to evaluate, in different periods, the levels of matrix metalloproteinases -1, -2, -3, -7, -8, -12 and -13 in gingival crevicular fluid (GCF) of the superior caninessubmitted to distalization movement and test the hypothesis of possible changes in these MMPs levels with the use of orthodontic forces. GCF samples were obtained from sixteen healthy orthodontic patients (nine males and seven females with ages ranging between 13 and 27 years, mean age 17.7 years) who had indication of first superior bicuspids extraction with cuspids distalization as part of orthodontic treatment. One maxillary canine was subjected to a distalizing force, and considered as the test tooth. The contralateral canine, which was not subjected to any force but was included in an orthodontic appliance, was used as a control. GCF sampling was performed at both mesial (tension) and distal (pressure) sites of the controls and tests teeth 7 days before applying the orthodontic appliance, immediately before applying the orthodontic force, and after 1 h, 24 h, and 7, 14 and 21 days, respectively called -7d, 0h, 1h, 24h, 7d, 14d and 21 d. The results showed significant differences in the GCF volume only in time intervals of 0h-7d on control-pressure (CP), test-tension (TT) and test-pressure (TP) sides. In TP side was observed an increase in volume between the time 0h and 14d. It was possible to detect in GCF all MMPs studied on control/test sides and pressure/tension sides at all periods. Fluctuations in levels of MMPs showed few significant changes in different periods on the sides control/test and pressure/tension. The differences between the groups (TT, TP, CT and CP) in each time showed no significant results as well as the comparisons between pressure and tension sides for each period individually. The expression levels of MMP-8 were much higher than those of other MMPs evaluated, but with no significant differences between sides test and control.
Linares, Leticia. "Análise comparativa da presença de mediadores inflamatórios no sulco gengival resultante das técnicas de moldagem em prótese fixa." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/25/25146/tde-03092013-161416/.
Full textThe quality of a prosthetic reconstruction depends mostly on its integration and its biological adaptation. The gingival retraction serves to provide space for the impression material and also for visualize and give access to the gingival limit of tooth preparations, which are essential for making prostheses with a reliable clinical precision fit. However, the inclusion of a material (retractor cord or acrilic resin coping) can break the system of gingival fibers that connect the gingival margin to cementum´s surface, causing gingival recession. Occasionally, inflammation or significant insertion loss occurs. The aim of this study was to quantify the inflammatory response resulting from differents impression techniques for fixed prosthodontics in terms of the quantity of IL-2, IL-4, IL-5, IL-10, TNF-α, IFN-γ, found in gingival fluid of tooths needing prosthetic restorations. The sample consisted of 10 teeth impressed by gingival retraction cord technique and a group of 10 teeth using acrilic resin coping technique. Patients were selected considering the need for fixed partial denture, good oral hygiene and absence of periodontal disease´s clinical signs. Prior taking impressions, a Periopaper strip was inserted into the gingival sulcus of patients and was maintained for 30 seconds. The collect was repeated 4 times to the mesiobuccal, distovestibular, mesiolingual and distolingual sides: After the impression procedure, collecting was repeated after 2 hours, 4 hours and 24 hours respectively. the Periopaper strip was inserted on the teeth´s four sites. The sample was prepared for flow cytometry examination (CBA - cytometric beads array). The results were evalueted by Tukey test. The 3-way analysis of variance criteria,comparing impression technique, patient and time to values of TNF-α, the relationship between time and patient versus time was statistically significant (p ? 0.05). Comparing the acrilic resin coping and retraction cord impression techniques, there was no superiority between each other (p ? 0.05). The Tukey test for intragroup comparison time (4 times) irrespective of technique and patient showed statistical significance between periods before the impression and after 24 hours (p=0,016) and the period between 2 and 24 hours after impressions (p=0,06). Therefore, it was concluded that there is no scientific evidence that exists any superiority between the techniques studied. Thus, the choice of gingival retraction method depends on the clinical situation and professional´s skills.
Fiorini, Tiago. "Níveis sistêmicos e periodontais de citocinas durante a gestação : correlações e efeito da terapia periodontal." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/142563.
Full textPeriodontal disease has been frequently associated with preterm birth. The biological plausibility for this association relies on the hypothesis of a low-grade systemic inflammation originated from periodontal disease. However, clinical studies that investigated the effect of periodontal therapy during pregnancy did not observe significant reductions in the incidence of prematurity. Several cytokines have been associated with both periodontal disease and preterm birth, and might play a key role in the observed association. To date, little is known about the correlation between serum and gingival crevicular fluid (GCF) cytokine levels, as well as the effect of periodontal therapy on these inflammatory markers in pregnant women. The aim of this thesis was to investigate the relationship between periodontal and systemic levels of inflammatory biomarkers related to periodontal immune response and also with the mechanisms of delivery. We also investigated the effect of periodontal therapy on serum and GCF cytokine levels during pregnancy and 30 days postpartum. This thesis consists of two studies that used a sub-sample of women who had been previously enrolled in a larger randomized controlled trial investigating the effect of periodontal therapy on the incidence of preterm birth. Women aged between 18-35 years and up to 20 weeks of gestation were randomly assigned to receive comprehensive nonsurgical periodontal treatment before the 24th gestational week (test group) or a single appointment of supragingival calculus removal (control group). Clinical data, blood and GCF samples were collected at baseline, between 26-28 weeks of gestation and 30 days postpartum. Four periodontal sites per patient were randomly selected for GCF collection among those with deepest probing depth. IL-1β, IL-6, IL-8, IL-10, IL-12p70 and TNF-α levels were analyzed using a cytometric bead array. In the study one, we investigated the correlation and agreement between periodontal and systemic levels of these cytokines in 100 patients, using data collected until 20 weeks of gestation. Patients presented widespread periodontal inflammation but limited destruction. The correlation between serum and GCF cytokine levels was low and not significant, except for IL-12p70, which showed a moderate but significant correlation between the two sources (r = 0.32, p = 0.001). The GCF cytokine levels observed explained less than 10% of the respective serum levels observed, except for IL-12p70, which was responsible for 23% of serum levels (p = 0.0001, r2 = 0.23). Probing depth and bleeding on probing were significantly associated with IL-1β, IL-6 and IL-8 GCF levels, but had limited effects on systemic levels of all cytokines. In the study two, we compared the effect of periodontal therapy during pregnancy (n=30) or a single appointment for supragingival calculus removal (n=30) on periodontal and systemic levels of these cytokines during pregnancy and 30 days postpartum. After treatment, a remarkable reduction of periodontal inflammation was observed in the test group, with bleeding on probing reducing from 49.62% to 11.66% of the sites (p<0.001). Periodontal therapy also significantly reduced IL-1β and IL-8 GCF levels (p<0.001). However, no significant differences due to therapy were observed regarding systemic levels of these cytokines. After delivery, IL-1β GCF levels in the test group remained significantly lower than in the control group, whereas no difference was observed for systemic levels of any other cytokine evaluated. It can be concluded that serum and GCF cytokine levels are not significantly associated in women with widespread periodontal inflammation but limited destruction. Although periodontal therapy during pregnancy significantly reduces GCF cytokine levels, it seems to have a negligible impact on systemic levels of these biomarkers.
Elizondo, Ochoa Jesús Eduardo. "Oral problems and Biopsychosocial factors associated with Human Immunodeficiency Virus infection." Doctoral thesis, Universitat Internacional de Catalunya, 2017. http://hdl.handle.net/10803/462917.
Full textHannas, Angélica Reis. "Determinação da expressão de MMP-2 e MMP-9 na saliva de pacientes portadores de lesões cervicais não cariosas e da influência das MMPs sobre lesões radiculares artificiais através de EDX." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-30032009-155558/.
Full textMatrix metalloproteinases (MMPs) have been identified in saliva, plaque, gingival crevicular fluid (GCF), dentin and cementum. Study (I) aimed at evaluating the presence and quantity of gelatinases MMP-2 and MMP-9 in total and parotid saliva and in GCF (GCF) of subjects with and without NCCL. Study (II) aimed at investigating whether the presence of matrix metalloproteinase (MMP)-8 and - 9/TIMPs would influence the remineralization of artificial root lesions with and without mechanical wear. (I) Total stimulated saliva, parotid saliva, and GCF from patients with (n=16) and without NCCL (n=16) were collected and assessed for gelatin zymography and for western immunoblot analysis. (II) Human root segments from Group A (n=35) were not brushed and from Group B (n=35) were subjected to machine-controlled brushing, simulating mechanical wear. Specimens from Group 1 (control, n=10) were left untreated. Group 2 (n=10), was just demineralized; Group 3 (n=10) was demineralized and remineralized. The other samples G4 (n=10), G5 (n=10), G6 (n=10), G7 (n=10) were subjected to remineralization with HEPES buffer, tissue inhibitor of matrix metalloproteinase-2 (TIMP-2), activated MMP-8 and MMP-9 and activated MMP-8, MMP-9 and TIMP-2, respectively. Ca+2, P, Mg+2 concentrations as well as Ca/P and Mg/Ca molar ratios were determined through an Electron Probe Microanalyser (EPMA). (I) Densitometric analysis revealed that the main gelatinase was proMMP-9. No statistically significant difference was observed for MMP-2 and MMP-9 levels, separately. In parotid saliva, gelatinolytic activity was very low or absent. Western immunoblots revealed that, while little immunoreactivity was detected for MMP-2, there was positive immunoreaction for MMP-9, both in total saliva and in GCF. Gelatinases do not seem to originate from parotid gland. (II) The results indicated that the brushed specimens presented higher Ca+2 levels at 20 µm and higher Mg+2 content at 30 and 50 µm. Ca+2 content at 20 µm decreased in the presence of TIMPs. For the non-brushed specimens, in all depths, samples incubated with MMPs showed highest Ca+2 values. It can be concluded that (I) the main gelatinase present in the oral cavity is MMP-9. No significant differences were found in total gelatinolytic activity among NCCL+ and NCCL- patients. (II) When not inhibited by TIMPs, MMPs degraded the completely demineralized collagen in the root surface, allowing for better recalcification in the deeper areas. This phenomenon was also facilitated by the brushing procedure.
Alves, Talita de Castro. "Detecção dos poliomavírus humano BK e JC em fluidos orais de indivíduos com insuficiência renal crônica e transplantados renais." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/23/23141/tde-19012016-163456/.
Full textNew clinical approaches for diagnosis and monitoring of individuals with systemic diseases have been employed through the use of oral biological fluids such as saliva and gingival crevicular fluid (GCF). Some authors have evaluated the potential of these fluids in the diagnosis and monitoring of diseases, because they have advantages such as noninvasive collection and safe handling. To date, few studies have demonstrated the detection of human polyomavirus BK (BKV) and JC (JCV) in saliva and no study reached for its presence in GCF. These polyomavirus infect asymptomatically around 80% of general population, remaining latent in the urinary tract. In case of immunosuppression mediated by cells, there is increased inflammation and induction of replication. One of the diseases caused by BKV replication is polyomavirus associated to the nephropathy (PVAN), characterized by the dysfunction or loss of the kidney or transplanted kidney, while the progressive multifocal leukoencephalopathy (PML) is caused by replication of JCV, infects oligodendrocytes causing demyelination. Noninvasive screening could facilitate the detection of new cases and monitoring of cases previously known. The objective of this study was to investigate the possibility of BKV and JCV detection and quantification in oral fluids (saliva, mouthwash and GCF) of individuals with chronic kidney failure (CKF), kidney transplantation (KT), and controls compared with blood and urine, often used for this test. Therefore, we included 38 subjects, divided into 3 groups, being 14 individuals with CKF (KFG), 12 individuals with KT (KTG) and 12 healthy control individuals (CG). In a total, we collected 283 samples, being 151 of GCF, 38 of saliva, 38 of mouthwash, 35 of serum and 21 samples of urine. In the KFG, 100% (14) of the individuals were positive for BKV in at least one of the collected sample and 14% (2) were positive for JCV. In the KTG, 91.7% (11) were positive for BKV and 51.7% for JCV. Among the subjects of the CG, 91.7% (11) were positive for BKV and 50% (6) to JCV, in at least one tested sample. There was no difference in viral detection frequency between the 3 studied groups with respect to the collected samples. Oral fluids samples (saliva, mouthwash and GCF) exhibited high prevalence of detection, especially of BKV, and several samples showed detectable viral load. We conclude that oral fluids, especially saliva and mouthwash, can be used for the screening of BKV and JCV.
Boräng, Jennifer, and Adam Boucher. "Green tea inhibits proteolytic enzymes in GCF from patients with chronic periodontitis." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19944.
Full textChronic periodontitis involves tissue destruction by matrix metalloproteinase, derived from the host cells, as part of the immunological response to bacterial virulence factors. Green tea has been studied for its health promoting properties, which includes anti-inflammatory effects. The effect is in part due to enzyme inhibition by tea polyphenols. The aim of this study was to further investigate the inhibitory effect of green tea, focusing on enzymatic activity in gingival crevicular fluid from patients with periodontal disease. Patients with chronic periodontitis were selected for participation in the study. Gingival crevicular fluid was extracted with micropipettes from the gingival sulci of the patients. Samples were treated with green tea and compared with untreated samples from the same subject. Fluorescence protease assay with casein as substrate was made using fourteen samples for detecting differences in caseinolytic activity. Zymogram assay using gelatin as substrate was done using four samples to test gelatinolytic activity and analyse molecular weights of the different enzymes. The fluorometric assay showed a significantly lower enzyme activity in samples mixed with green tea than untreated samples (p<0.001). The zymogram assay showed a difference in band strength which was most pronounced in the bands of molecular weight around 255 kDA, analogous to complexes of matrix metalloproteinase-9. In conclusion, green tea has been shown in this study to have a strong inhibitory effect on caseinolytic activity and a lesser, more specific, inhibitory effect on gelatinase activity.
Barros, Fabiana Mesquita. "Detecção dos poliomavírus humanos BK, JC, de células Merkel e TSV em fluídos orais de indivíduos HIV positivos." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/23/23154/tde-25062018-105900/.
Full textPolyomavirus is one of the large family of viruses that cause primary infections usually in childhood, and can remain subclinical. In immunosuppression may cause some diseases. Individuals with HIV/AIDS often have immune deficiencies and may be at increased risk for diseases caused by polyomaviruses. The use of saliva in the diagnosis and follow-up of infectious diseases has been explored in the literature. The advantages of using saliva for screening are based on non-invasive collection and handling safety. The aim of present study was to detect and quantify the DNA from BKV, JCV, Merkel cell and TSV polyomaviruses in oral fluids (saliva, mouthwash and gingival crevicular fluid) and to compare it with serum and urine detection, the means usually used for detection. A total of 299 samples were collected from 42 individuals, 22 HIV positive (GE) and 20 control patients (GC). In GE, 63,6% of the patients presented positive for JCV in at least one sample analyzed, 54,5% were positive for BKV, 18,2% for Merkel cell and there was no positive sample for TSV. In GC, 45% showed JCV positivity in at least one analyzed sample, 80% in BKV, and no control participant exhibited positivity for Merkel cell and TSV. There was no difference in the frequency of viral detection among the groups studied in relation to the samples collected, or in relation to age or gender. However, in oral fluid samples there was a higher prevalence of detection for BKV and Merkel cell. We conclude that oral fluids, especially saliva and mouthwash, can be used for the screening of BK e JC; and that HIV positive individuals under antiretroviral treatment do not exhibit higher frequencies of polyomavirus compared to healthy control subjects.
SOLASSOL, RUFFEL MARIE-HELENE. "Contribution a l'etude de la physiologie du polynucleaire creviculaire." Toulouse 3, 1991. http://www.theses.fr/1991TOU35002.
Full textDutzan, Muñoz Nicolás. "Niveles de Interleuquina-17 en el Fluido Gingival Crevicular y en Cultivos Celulares de Leucocitos Infiltrantes Gingivales en Individuos con Periodontitis Crónica." Tesis, Universidad de Chile, 2003. http://www.repositorio.uchile.cl/handle/2250/110704.
Full textSáez, Pino Mildri. "Efecto del blanqueamiento intracoronario sobre los niveles de IL-1ß en el fluido gingival crevicular." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/142539.
Full textIntroducción: El blanqueamiento intracoronario de dientes no vitales es ampliamente utilizado en la actualidad como alternativa de tratamiento estético y conservador en pacientes con cambio de coloración en uno o más dientes. El peróxido de hidrógeno, molécula activa responsable de lograr el efecto aclarante en la estructura dentaria, ha sido catalogado por diversos autores como una sustancia potencialmente tóxica para los tejidos periodontales, con una gran capacidad oxidativa y poder de difusión debido a su bajo peso molecular. En el presente estudio se evaluó la respuesta tisular frente al uso de dos agentes blanqueadores utilizados en la actualidad, mediante la medición de los niveles de la citoquina IL-1β, implicada en todos los procesos inflamatorios, donde no existen estudios clínicos ni registro en la literatura. Material y Métodos: Se incluyeron 50 dientes tratados endodónticamente con cambio de coloración. Fueron conformados dos grupos de estudio de forma randomizada según el agente blanqueador utilizado, G1: peróxido de hidrógeno al 35% (n=25), G2: peróxido de carbamida al 37% (n=25). El blanqueamiento intracoronario se realizó mediante la técnica walking bleach con un protocolo de 4 sesiones de blanqueamiento. Las muestras de fluido gingival crevicular (FGC) para determinar los niveles de IL-1β se tomaron con papel absorbente Periopaper® en 6 sitios por diente en los siguientes tiempos: antes del inicio del tratamiento (inicial), al finalizar cada sesión de blanqueamiento, a la semana y al primer mes de finalizado el tratamiento. Se cuantificaron los niveles de proteínas totales usando el sistema Bradford® y a partir de 100 μl de muestra eluída se midieron los niveles de IL-1β mediante ELISA (Quantikine ® ; R&D Systems Inc.). Resultados: Los niveles de IL-1β aumentaron significativamente respecto a los valores iniciales en todos los tiempos evaluados, en ambos grupos (p<0,05). No hay diferencia estadísticamente significativa entre los niveles de IL-1β al comparar los grupos entre sí (p>0,05). Conclusiones: Los niveles de IL-1β aumentan gradualmente luego de cada sesión de blanqueamiento y hasta el mes post-blanqueamiento. Los niveles alcanzados en el presente estudio son compatibles con inflamación.
Adscrito a Proyecto PRI-ODO No. 03/016.
Espinoza, Tilleria María Loreto. "Niveles de catepsina K en el fluido gingival crevicular de dientes con periodontitis apical asintomática." Tesis, Universidad de Chile, 2011. http://repositorio.uchile.cl/handle/2250/132095.
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Introducción: En la actualidad no existe un método clínico no invasivo que refleje la progresión de los procesos de destrucción y reparación de los tejidos periapicales una vez finalizado el tratamiento endodóntico en dientes con diagnóstico de Periodontitis Apical asintomática (PAa). El objetivo del presente trabajo de investigación es determinar los niveles de catepsina K en el Fluido Gingival Crevicular (FGC) de dientes con PAa antes y después de la terapia endodóntica convencional y compararlo con el FGC de dientes contralaterales sin PAa. Materiales y métodos: Se obtuvieron muestras de FGC de dientes en sujetos con diagnóstico de PAa y de dientes control, contralaterales sin PAa (n=11). También se obtuvieron muestras de exudado periapical (EP) de los dientes con PAa. Las muestras de FGC de dientes enfermos se obtuvieron al momento del diagnóstico y a los 7 y 30 días tras finalizar el tratamiento endodóntico. Se determinaron los niveles de catepsina K mediante test de EIA y se realizó el análisis estadístico de los resultados con la ayuda del programa Stata v10. Resultados: Los resultados no mostraron aumentos significativos en los niveles de catepsina K en el FGC de dientes enfermos v/s controles, antes y después del tratamiento endodóntico. Tampoco se observó una correlación con respecto a los niveles de catepsina K en EP, ni con los parámetros radiográficos de los dientes con PAa. Conclusiones: En el presente estudio los niveles de catepsina K en el FGC y EP no parecen reflejar el estado de salud de los tejidos periapicales de dientes con PAa.
Aranda, González Valentina Andrea. "Niveles de mieloperoxidasa (MPO) en fluido gingival crevicular (FGC) de dientes con periodontitis apical asintomática (PAa)." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/115469.
Full text“Niveles de Mieloperoxidasa (MPO) en Fluido Gingival Crevicular (FGC) de Dientes con Periodontitis Apical Asintomática (PAa)” Introducción: La mieloperoxidasa (MPO), es una peroxidasa con rol defensivo contra los agentes infecciosos y paralelamente provoca daño a los tejidos adyacentes. A la fecha, su presencia no se ha asociado a la periodontitis apical asintomática (PAa). Objetivo: Comparar los niveles de MPO presente en fluido gingival crevicular (FGC) de dientes con PAa antes del tratamiento endodóntico con dientes con PAa después del tratamiento endodóntico y dientes sin PAa. Materiales y Métodos: Se obtuvieron muestras de FGC de dientes con PAa antes del tratamiento endodóntico (n=13) y después de siete días finalizado éste (n=12) y de dientes sin PAa (n=13). Las muestras fueron eluidas y se les realizó cuantificación de proteínas totales. Para determinar los niveles de MPO se realizó test de ELISA y para el análisis estadístico el programa GraphPAD prism. 5.0. Resultados: La MPO se expresa en FGC en dientes sanos y con PAa. Si bien se observó que los niveles de MPO fueron ligeramente mayores en FGC de dientes con PAa que en dientes sanos, y que hubo una tendencia a la disminución después del tratamiento endodóntico, las diferencias no fueron estadísticamente significativas. Conclusiones: Los niveles de MPO en el FGC no reflejaron el estado de salud periapical, esto podría estar influenciado por estados inflamatorios gingivales subclínicos.
Florêncio, Ana Carolina. "O impato da utilização dos contracetivos orais nos tecidos periodontais de suporte." Master's thesis, [s.n.], 2012. http://hdl.handle.net/10284/3796.
Full textO reconhecimento da presença de recetores específicos para as hormonas sexuais, estrogénio e progesterona, na gengiva humana, fez com que o tecido periodontal passasse a ser considerado alvo potencial para as variações hormonais as quais, por sua vez, passaram a constituir possíveis fatores modificadores da resposta inflamatória inerente ao hospedeiro quando do estabelecimento da doença periodontal. Para tanto, evidencia-se o papel das hormonas sexuais na vascularização tecidual, na resposta imunitária, no perfil funcional das células próprias do periodonto, assim como, no reparo tecidual e no metabolismo ósseo. Diante desses aspectos, em razão da vasta utilização de contracetivos orais como método hormonal preferencial das mulheres no planeamento familiar, realizou-se revista na literatura para que fossem coligidos os dados mais relevantes acerca do impacto que a administração de produtos sintéticos, a base de estrogénio e progesterona, podem ter sobre o tecido periodontal. Foi realizada, assim, pesquisa na base de dados PUBMED, Sciene Direct, Bireme, Scielo, B-on e Google Académico, sem que limite temporal fosse estabelecido. Na pesquisa também foram utilizadas algumas obras literárias. Do referido trabalho, concluiu-se que as mulheres que utilizam contraceptivos orais, apresentam um aumento de perda de inserção clínica e rápida progressão da doença periodontal, decorrente do aumento da concentrações hormonais nos tecidos subgengivais, da existência de placa bacteriana, bem como, da sua utilização prolongada. The recognition of the existence of specific hormone receptors, estrogen and progesterone, in the human gingiva, has placed the periodontal tissue as a potencial target to hormonal variations, which became possible modifier factors inherent to the host’s inflammatory response when periodontal disease sets. Accordingly, the role of sex hormones in vascular tissue, the immune response, the functional profile of the periodontum’s own cells as well as in tissue repair and bone metabolism, are highlighted. Considering these aspects and due to the widespread use of oral contraceptives as a preferential method used by women in family planning, a literary review was held in order to collect the most relevant data about the impact that the administration of syntethic products, the basis of estrogen and progesterone may have on periodontal tissue. Hereby, a research was made in PUBMED, Science Direct, Bireme, Scielo, B-on and Google Académico, without any time limits. In addition, some literary works were also used in this research. In this study it has been concluded that, women who use oral contraceptives have an increased loss attachment and quick progression of the periodontal disease, due to the increase of hormonal concentrations in subgengival tissues,, the existence of bacterial plaque as well as its prolonged use.
Pérez, Serrano Gustavo. "Niveles de factor de crecimiento vascular endotelial (VEGF) e interleuquina 1-B (IL-1B) en fluido crevicular (FGC) de dientes con periodontitis apical asintomática (PAa)." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/113959.
Full textAutor no autoriza el acceso a texto complete de su tesis en el programa de tesis Electrónicas
Introducción: La periodontitis apical asintomática (PAa) es una patología inmunoinflamatoria de origen infeccioso que se caracteriza por destrucción del tejido óseo periapical y está asociada a expresión de diversos mediadores inflamatorios. El factor de crecimiento vascular endotelial (VEGF) participa en angiogénesis, aumento de la permeabilidad vascular y vasodilatación, fenómenos centrales en la patogenia de la PAa. La interleuquina 1-β (lL-1β) en procesos inflamatorios promueve la reabsorción ósea, la síntesis de prostaglandinas y la producción de proteasas. A la fecha se desconoce la presencia y niveles de VEGF e lL-1β en fluido gingival crevicular (FGC) de dientes con PAa. Objetivo: Comparar los niveles de IL-1β y VEGF en el fluido gingival crevicular (FGC) de dientes con periodontitis apical asintomática (PAa) en forma previa, tras la realización del tratamiento endodóntico y en dientes controles contralaterales sanos. Materiales y método: Se obtuvieron muestras de FGC de dientes con PAa al momento del diagnóstico inicial (n=23) y 7 días post tratamiento endodóntico y de dientes contralaterales sanos (n=23). Las muestras de FGC fueron eluídas y se midió la concentración de proteínas totales (CPT). Los niveles de VEGF y de IL1-β se determinaron mediante FlowCytomix. Para el análisis estadístico se aplicó el programa Stata v.11.1 Resultados: Se observó similitud en la CPT de los grupos de PAa pre y post tratamiento endodóntico y niveles mayores en grupo control versus grupo PAa pre tratamiento. En relación a niveles de IL 1-β se observó similitud de niveles entre los grupos pre tratamiento y controles, mientras que los niveles son mayores en el grupo post tratamiento. Se detectó presencia de VEGF pero no niveles, por dificultades en la medición, encontrándose mayor frecuencia de detección en el grupo PAa post tratamiento versus controles y PAa pre tratamiento. Conclusiones: No se observaron diferencias significativas en los niveles de CPT e IL-1β en FGC de dientes sanos y enfermos pre y post tratamiento endodóntico. Por el contrario, sí se observaron diferencias estadísticamente significativas en los niveles de VEGF al comparar PAa post tratamiento versus controles, no encontrándose correlación en niveles de VEGF entre PAa y controles. No se encontró correlación de los mediadores estudiados en FGC, con los estados de salud/enfermedad en la muestra analizada.
Baeza, Paredes Mauricio Enrique. "Marcadores de metabolismo óseo en fluido crevicular gingival como potencial herramienta diagnóstica de enfermedades inflamatorias crónicas del periodonto marginal y apical." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/147382.
Full textIntroducción: El fluido crevicular gingival (FCG) representa una potencial fuente de biomarcadores de enfermedades inflamatorias crónicas que afectan a los tejidos periodontales. Estas patologías constituyen las principales causas de pérdida dentaria en adultos. El objetivo del presente estudio fue evaluar niveles y precisión diagnóstica de un set de marcadores de metabolismo óseo en FCG de sujetos con periodontitis marginal crónica (PC) y de sujetos con periodontitis apical asintomática (PAA). Método: En el presente estudio analítico transversal, los sujetos fueron seleccionados desde la Facultad de Odontología de la Universidad de Chile. Las muestras de FCG se obtuvieron de sitios de dientes de sujetos con diagnóstico de PC (n=30), PAA (n=30) y controles sanos (n=30). La concentración de proteínas totales (CPT) fue determinada con el método del ácido bisciconínico. La actividad gelatinolítica de las metaloptoteinasas de la matriz (MMP) -2 y -9 fue determinada con zimografía y análisis densitométrico. Niveles de MMP-8 fueron determinados mediante ELISA e IFMA, mientras que marcadores óseos directos (DKK-1, osteonectina, periostina, TRAP y OPG), por el método cuantitativo multiplex. Para las comparaciones entre los grupos se realizó la prueba de Kruskal-Wallis utilizando el paquete estadístico Stata V12 y para la evaluación de precisión diagnóstica se realizó la construcción de curvas ROC y el cálculo del área bajo la curva utilizando el programa estadístico SPSS19. Se consideró significación estadística con un valor p<0,05. Resultados: La proenzima, forma activa, tasa de activación de MMP-9 y nivel de MMP- 8 (ELISA e IFMA) fueron significativamente mayores en sitios de individuos con PC, seguidos por PAA, en comparación con individuos sanos, con diferencias estadísticamente significativas entre todos los grupos (p<0,05). La CPT, ProMMP-2, TRAP y OPG fueron significativamente mayores en los sitios de sujetos con PC en comparación con PAA y sanos (p<0,05). Al asociar los niveles moleculares de los marcadores con variables clínico-radiográficas en sujetos con PC, se observó una correlación directa estadísticamente significativa entre los niveles de Pro-MMP-2, MMP-9 activa, porcentaje de activación de MMP-9 y TRAP con profundidad al sondaje (PS) y nivel de inserción clínica (NIC) (p≤ 0,01), de MMP-8 con PS (p≤ 0,01) y de ON con NIC (p< 0,05). Se observó además una correlación indirecta estadísticamente significativa entre TRAP y nivel óseo radiográfico (NOR) (p<0,05). El análisis de precisión diagnóstica de los marcadores reveló que CPT, ProMMP-2, ProMMP-9, MMP-9 activa, MMP-8 (ELISA), y TRAP presentaron un muy alto rendimiento en sitios de sujetos con PC, con áreas bajo la curva mayores a 0,9 y con valores de sensibilidad que fluctuaron entre un 77,42% y 96,77%, y de especificidad entre 80,65% y 100%. A su vez, en sitios de sujetos con PAA, MMP-8 (ELISA) presentó una alta precisión diagnóstica con un área bajo la curva de 0,869, valores de sensibilidad de 92%, y de especificidad de 75,86%. Conclusión: El FCG evidencia cambios en su composición en presencia de procesos inflamatorios crónicos del periodonto, tanto a nivel marginal como apical del diente, a su vez estos cambios se asocian con signos clínicos y radiográficos de destrucción periodontal. La determinación de marcadores moleculares en FCG podría constituir una herramienta útil como potencial método complementario al diagnóstico clínico- radiográfico de periodontitis crónica y periodontitis apical asintomática.
Mardones, Peñailillo Jeannette. "Expresión de proteína quimiótica de monocitos-3 (MCP-3/CCL7) en fluido gingival crevicular y en lesiones periapicales de dientes con periodontitis apical crónica." Tesis, Universidad de Chile, 2009. http://repositorio.uchile.cl/handle/2250/136312.
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ntroducción La periodontitis apical crónica (PAC) es una respuesta inmunoinflamatoria causada por la infección bacteriana de la pulpa dental, en la que hay destrucción de los tejidos periapicales. La proteína quimiotáctica de monocitos – 3 (MCP3/CCL7) es una quimioquina que atrae, principalmente, a células del linaje monocito-macrófago, las que son fundamentales durante el desarrollo de la PAC, por lo que podría participar en la patogénesis de las lesiones periapicales (LPAs) y su caracterización en el fluido gingival crevicular (FGC) podría reflejar el estado de salud/enfermedad de los tejidos perirradiculares. El objetivo de este trabajo es comparar la expresión de MCP-3, en FGC de dientes con diagnóstico de PAC y de dientes sanos; y establecer una correlación entre la expresión de MCP-3 en FGC de dientes con PAC y homogeneizados de biopsias de LPAs de dichos dientes. Material y métodos Se seleccionaron 12 pacientes con diagnóstico clínico de PAC e indicación de exodoncia. Se obtuvieron muestras de FGC de dientes con PAC con indicación de exodoncia y libres de enfermedad periodontal, FGC de sus contralaterales sanos y biopsias de las LPAs obtenidas luego de las exodoncias de los dientes con PAC. Para determinar la expresión de MCP-3 se realizó Western blot. La intensidad de las bandas se midió por análisis densitométrico con el programa UN SCAN IT ® 1 Resultados MCP-3 se expresa en FGC de dientes sanos y de dientes con PAC, así también en las LPAs. Los niveles de MCP-3 en FCG de dientes con PAC fueron significativamente mayores que en sanos. Se observó correlación positiva en la expresión de MCP-3 entre FGC de dientes con PAC y homogeneizados de biopsias de LPAs. Conclusiones MCP-3 participaría en la patogénesis de las LPAs, probablemente actuando como quimioatractante de células del linaje monocito-macrófago. La LPA sería la principal fuente de MCP-3. A su vez, nuestros resultados sugieren que el FGC podría ser una herramienta útil en el estudio de la PAC, ya que refleja cambios en su composición de acuerdo al estado de salud/enfermedad de los tejidos periapicales.