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Zeitschriftenartikel zum Thema "EFECTO TOXICO"
Cerutti, Dante Alberto, Melina Castillo, Sebastian Ramos, Mirta Adriana Koncurat und Humberto Cisale. „Determination of the Toxic Effect of Pulmonary Extracts on Refrigerated Porcine Semen“. Ciencia Veterinaria 23, Nr. 1 (01.04.2021): 39–46. http://dx.doi.org/10.19137/cienvet-202123103.
Der volle Inhalt der QuelleGomez, Ivonne. „Efecto teratogénico y toxico de ácidos grasos de cadena corta insaturados, en Rhodnius prolixus“. Memórias do Instituto Oswaldo Cruz 80, Nr. 4 (Dezember 1985): 375–85. http://dx.doi.org/10.1590/s0074-02761985000400001.
Der volle Inhalt der QuelleLeón Pinzón, Angie Lisseth. „Evaluación de efectos tóxicos del cianuro, protección de tiosulfato de sodio en tilapia (Oreochromis sp.)“. Orinoquia 20, Nr. 2 Sup (16.12.2016): 26–40. http://dx.doi.org/10.22579/20112629.439.
Der volle Inhalt der QuelleVidal Corominas, David Jesús, und Isis Chamblás García. „Alianza terapéutica y adherencia a tratamientos de drogodependencia: un estudio en usuarios de centros de atención de la intercomuna Concepción – Talcahuano“. Revista Perspectivas: Notas sobre intervención y acción social, Nr. 25 (31.05.2016): 143. http://dx.doi.org/10.29344/07171714.25.422.
Der volle Inhalt der QuelleHelena Benito Naverac. „Anestesia neuroaxial en gestantes con patología intracraneal“. Revista Electrónica AnestesiaR 10, Nr. 8 (31.08.2018): 2. http://dx.doi.org/10.30445/rear.v10i8.633.
Der volle Inhalt der QuelleHemández, Leonardo Fabio, und Eduardo Palacios. „Toxina botulínica tipo a: experiencia con 2.000 aplicaciones“. Revista Repertorio de Medicina y Cirugía 21, Nr. 4 (01.12.2012): 298–306. http://dx.doi.org/10.31260/repertmedcir.v21.n4.2012.834.
Der volle Inhalt der QuelleFernández-Lorente, Manuel, Isabel Aldanondo-Fernández de la Mora und Pedro Jaén-Olasolo. „Efectos secundarios de la toxina botulínica“. Piel 20, Nr. 9 (November 2005): 474–80. http://dx.doi.org/10.1016/s0213-9251(05)72330-3.
Der volle Inhalt der QuelleAlvarado-Gutiérrez, Alma Yolanda, Jorge Hernández-Franco und Israel Sánchez-Villavicencio. „Toxina botulínica tipo A en el tratamiento de sialorrea en pacientes con enfermedad de Parkinson“. Archivos de Neurociencias 20, Nr. 3 (01.09.2015): 174–81. http://dx.doi.org/10.31157/archneurosciencesmex.v20i3.89.
Der volle Inhalt der QuelleRivera La Plata, Emma, Doris Reymer Reinoso und Helga Solis Mujica. „Tratamiento de la sialorrea con toxina botulinica en niños con paralisis cerebral“. Revista Herediana de Rehabilitación 2, Nr. 1 (11.04.2020): 27–35. http://dx.doi.org/10.20453/rhr.v2i1.3694.
Der volle Inhalt der QuelleSaldaña Chafloque, Charles Frank, und Gaspar Epifanio Ayquipa Aycho. „Effect of the toxic bait with molasses trap in the control of Elasmopalpus lignosellus Zeller“. Manglar 18, Nr. 1 (26.03.2021): 45–50. http://dx.doi.org/10.17268/manglar.2021.006.
Der volle Inhalt der QuelleDissertationen zum Thema "EFECTO TOXICO"
ACIOLE, Eliézer Henrique Pires. „Efeito Toxico-Genético dos Larvicidas Dilapiol e Espinosade em Células Somáticas de Drosophila Melanogaster“. Universidade Federal de Pernambuco, 2012. https://repositorio.ufpe.br/handle/123456789/10280.
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CAPES, FACEPE.
O uso constante de inseticidas em programas de saúde pública tem sido a principal medida para o controle de insetos vetores de doenças epidêmicas em países tropicais e subtropicais. Anualmente toneladas de inseticidas sintéticos, sobretudo os organofosforados, são lançadas ao meio ambiente na tentativa de controlar o crescimento populacional dos vetores. Os larvicidas são compostos capazes de matar larvas que se desenvolvem em reservatórios grandes ou pequenos, naturais ou artificiais de água, muitas vezes própria ao consumo humano. Os compostos dilapiol e espinosade são classificados como larvicidas, sendo o dilapiol um óleo essencial extraído da espécie vegetal Piper aduncum e o espinosad uma combinação de dois metabólitos produzidos pela bactéria Saccharopolyspora spinosa. O objetivo deste trabalho foi avaliar os efeitos genotóxicos do dilapiol e do espinosade, por meio do teste de mutação e recombinação somática (SMART) de asa de Drosophila melanogaster. Na metodologia foi utilizado o cruzamento padrão, sendo as larvas com 72h de vida submetidas durante 48h à exposição crônica a três diferentes concentrações não letais do dilapiol (3,2, 16 e 80 um/mL) e do espinosade (0,32, 0,96 e 1,6 ug/mL). Para avaliação do efeito genotóxico, as frequências das manchas de pelos mutantes nas asas dos indivíduos tratados foram comparadas com os respectivos controles negativos. Os resultados indicam que ambos compostos tiveram atividade toxico-genética positiva, em todas as concentrações testadas, exceto o espinosade a 0,96ug/mL. A atividade genotóxica se deu, principalmente, à indução de recombinação e, em menor escala, à mutação somática, verificada apenas para o espinosade. Os resultados aqui apresentados contribuem para o conhecimento dos riscos genotóxicos do uso destes dois inseticidas, que merecem ainda mais estudos, feitos em outros modelos experimentais e outras condições e metodologias para que sejam considerados seguros para a saúde humana e o meio ambiente.
Barbosa, Pedro Melo. „Avaliação da eficácia e efeitos colaterais de duas apresentações de toxina botulínica tipo A no tratamento da distonia cervical idiopática“. Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/17/17140/tde-26112014-162015/.
Der volle Inhalt der QuelleIntroduction: Cervical dystonia (CD) is the most frequent type of primary focal dystonia and treatment with botulinum toxin is currently the gold standard. Considering that each botulinum toxin brand is pharmacologically distinct, in this paper we compared two botulinum toxins available in Brazil: Abobotulinumtoxin A (Dysport®) and Lanzhou botulinum toxin type A (Prosigne®). Methodology: We conducted a prospective, randomized, double blind trial with one group being treated with Dysport® and the other Prosigne®. We recruited 34 patientes from Ribeirao Preto Medical Schools (HCFMRP) botulinum toxin clinic (ATXB) from may 2010 to june 2011, only patients with idiopathic CD were included in the trial. Each individual was followed during a 13 month period, during which 5 TBA injection sessions were conducted with 3 month intervals between them. To assess objective improvement we used the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS), full scale and severity, disability and pain subscales, before and after the first and fifth treatment sessions. After each treatment session we assessed improvement with the Clinician Interview Based Impression of Change (CIBIC) scale and asked about side effects and duration of improvement. For statistical analysis we used the following tests: t test for paired samples, Mann-Whitneys non parametrical test, Friedmans non parametrical test and qui square test. Results: Fourteen patients were randomized to receive Dysport® and twenty to receive Prosigne®. Mean age in Dysport® group was 57.21 years and in Prosigne® group was 51.95 (p = 0.23). After first injection, mean TWSTRS values reduced 12.78 points in Dysport® group and 9.98 in Prosigne® group (p = 0.38). After last injection the reduction in TWSTRS values was 11.87 points for Dysport® and 11.35 points for Prosigne® (p = 0.86). CIBIC scores showed that the majority of patients reported some level of improvement after injections without statistical differences between groups. Dysphagia was the commonest adverse effect, occurring after 27.27 % of all injections, followed by local pain and muscle weakness. Once again there were no statistical difference between groups regarding adverse effects. Conclusion: Our data showed similar efficacy and safety profiles when comparing both toxins, Dysport® and Prosigne®.
Huatuco, Del Solar Elva Esther. „Efecto terapéutico de la Toxina Botulínica Tipo A en el tratamiento del Síndrome de Dolor Miofascial Masticatorio“. Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2011. https://hdl.handle.net/20.500.12672/1132.
Der volle Inhalt der QuelleThe Masticatory Myofascial Pain Syndrome (MMPS) is a clinical entity characterized by the presence of trigger points in the masticatory muscles. It is due to local muscle injury caused by overloading an excessive discharge of acetylcholine at the neuromuscular junction. The application of botulinum toxin type A (TBA) in myofascial trigger point works by inhibiting the release of acetylcholine triggering a flaccid paralysis and muscle relaxation. The aim of this study was to determine the therapeutic effect of BTA in the treatment of MMPS using Visual Analog Scale of Pain. (Scale that measures pain from 0 to 10). The type of study was controlled clinical trial, prospective, longitudinal and random. Twenty-eight patients of the Service of Oral and Maxillofacial Surgery at the Hospital Nacional Hipólito Unánue met the inclusion criteria. Fourteen of them was applied to TBA and the other, placebo (saline 0.9%) and monitored for 4 weeks. TBA was found that pain decreased dramatically, from 6.36 to 0.57. In contrast to the control group dropped from 5.36 to 4.36. We conclude that the TBA applied intramuscularly in masticatory trigger points was more effective than placebo for the treatment of MMPS. KEYWORDS: Masticatory Myofascial Pain Syndrome - Botulinum Toxin type A - Trigger point – Acetylcholine - Oral and Maxillofacial Surgery.
Tesis
Souza, Maria Eliege de. „O efeito da toxina botulínica tipo A sobre a espasticidade e funcionalidade da criança com paralisia cerebral espástica“. Universidade Nove de Julho, 2015. http://bibliotecatede.uninove.br/handle/tede/1811.
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The cerebral palsy (CP) is characterized by a group of non progressive disorders of the brain’s development and posture caused by a malformation or brain injury. As treatment , there are therapeutic approaches aimed at normalizing muscle tone and prevent change in the relation between bone growth and muscle, that can lead to poor posture and structured deformities. The aim this study was to investigate the effects of botulinum toxin type A (TB-A) for spasticity and functionality in spastic CP childrem. This was a prospective, controlled, randomized, consisting of 24 children (aged 5 to 12 years) with spastic CP, being divided into two groups: experimental group (EG) consisting of 12 patients (mean age 7.83 ± 2, 07 years) treated with TB-A toxin and physiotherapy and control group (CG) with 12 patients (mean age 8.50 ± 2.17 years) treated only with physical therapy. All participants were assessed through motor and functional scales (GMFCS, GMFM-88, Ashworth, Berg Balance Scale, Time up and go -TUG and Inventory Assessment Pediatric Disorders - ASK) at three different times: before treatment, 30 days and 3 months after the treatment proposed. By analysis of variance (ANOVA) for repeated measures it was observed significant differences (p < 0.001) between groups (groups vs treatment) to the data obtained in the GMFCS, GMFM-88, BERG, TUG, Ashworth and ASK, being observed functional improvement only for the GE group. In this study it was concluded that the use of TB-A provides a significant improvement on spasticity and child functionality with spastic CP, over a period of up to 3 months after application.
A Paralisia Cerebral (PC) é caracterizada por um grupo não progressivo de desordens do desenvolvimento e postura decorrentes de uma malformação ou lesão cerebral. Como tratamento, destacam-se abordagens terapêuticas que visam normalizar o tônus muscular e prevenir alteração na relação entre o crescimento ósseo e o muscular, que podem provocar posturas inadequadas e deformidades estruturadas. Dessa maneira, o objetivo desse estudo foi verificar os efeitos da toxina botulínica tipo A (TB-A) sobre a espasticidade e funcionalidade da criança com PC espástica. Esse foi um estudo prospectivo, controlado, randomizado, constituído por 24 crianças (idade entre 5 e 12 anos) com PC espástica, distribuídas em dois grupos sendo: Grupo experimental (GE) constituído com 12 pacientes (idade média 7,83 2,07 anos) tratadas com toxina TB-A e fisioterapia e Grupo controle (GC) sendo 12 pacientes (idade média 8,50 2,17 anos) tratados somente com fisioterapia. Todos os participantes foram avaliados por meio de escalas motoras e funcionais (GMFCS, GMFM-88, Ashworth, escala de equilíbrio de BERG, Time up and go –TUG e o Inventário de Avaliação Pediátrica de Disfunções - PEDI) em três momentos distintos: antes do tratamento, 30 dias e 3 meses após o tratamento proposto. Por meio da análise de variância (ANOVA) para medidas repetidas foi possível observar diferenças significativas (p < 0,001) entre os grupos (grupos vs tratamento) para os dados obtidos na escala de GMFCS, GMFM-88, BERG, TUG, Ashworth e PEDI, sendo observada melhora funcional somente para o grupo GE. Nesse estudo foi possível concluir que o uso da TB-A proporciona uma melhora significativa sobre a espasticidade e funcionalidade da criança com PC espástica, em um período de até 3 meses após sua aplicação.
Forteza, González Gabriel. „Efecto de la Toxina Botulínica A en el tratamiento del dolor miofascial masticatorio“. Doctoral thesis, Universitat Rovira i Virgili, 2006. http://hdl.handle.net/10803/8725.
Der volle Inhalt der QuelleEl Síndrome de Dolor Miofascial Masticatorio (SDMFM) - También denominado Dolor Facial Miogénico - es un cuadro que, según estudios, afecta hasta al 25% de la población. Afecta preferentemente a mujeres (entre el 75 y el 88,5 %), entre 20 y 40 años. Se caracteriza por la presencia de trismus, dolor facial, fatiga y limitación de la función en los músculos maseteros (79-84 %) y temporales (56-65 %), seguidos de los pterigoideos internos, externos y los digástricos. Puede afectar a los músculos esternocleidomastoideos, esplenios, trapecios, periorales y al frontal. La localización preferente en los maseteros se caracteriza por la presencia de una banda gatillo, localizada en la región media del músculo, especialmente dolorosa a la palpación. Depresión, ansiedad, fatiga y trastornos del sueño acompañan con frecuencia al dolor y caracterizan también el SDMFM.
Según la literatura actual sobre dolor crónico, se considera que en el SDMFM concurren mecanismos centrales y periféricos del Sistema Neuromuscular, comunes a los del dolor miofascial del tronco y las extremidades, aunque su naturaleza exacta sigue siendo una incógnita. Diversas teorías apuntan a un exceso de actividad muscular con liberación final de metabolitos tóxicos. Los factores predisponentes incluirían posturas inadecuadas, sedentarismo, desequilibrios nutricionales - especialmente déficit vitamínico -, hábitos bucales parafuncionales, trastornos del sueño y alteraciones articulares.
Tradicionalmente, el tratamiento del SDMFM ha incluido el uso prolongado de AINE, férulas oclusales, fármacos miorrelajantes, antidepresivos, terapia física y técnicas de relajación. Entre los tratamientos locales destacan la punción seca y la infiltración de diversos fármacos e incluso de suero fisiológico.
Hipótesis: La TBA resulta un método eficaz de tratamiento del SDMFM.
Objetivos: Evaluar la posible eficacia, efectos indeseables, de la TBA en un grupo de pacientes voluntarios, afectos de SDMFM, mediante la realización de un ensayo clínico paralelo, randomizado y en condiciones doble-ciego.
MATERIAL Y MÉTODOS
Se diseñó un ensayo clínico piloto unicéntrico, prospectivo, aleatorizado, controlado y doble-ciego, para determinar la eficacia de la Toxina Botulínica A (TB) en el tratamiento del SDMFM. Los pacientes que aceptaron participar en el estudio fueron sometidos al Inventario Clínico Multiaxial de Millon-II para evaluar su personalidad.
Durante el período comprendido entre septiembre de 2001 y septiembre de 2002, 72 pacientes afectos de SDMFM aceptaron participar en el estudio. El diagnóstico de SDMFM se realizó basándose en los criterios diagnósticos definidos por Dworkin y LeResche -Research Diagnostic Criteria for Temporomandibular Disorders- correspondientes a trastornos musculares (grupo I) para el SDMFM. se seleccionaron aleatoriamente 30, repartidos aleatoriamente en dos grupos:
· Tratado con toxina botulínica
· Tratado con placebo.
En el cuestionario del paciente se midió el dolor actual espontáneo mediante una Escala Visual Analógica (EVA): 0= ausencia de dolor: 10= máximo dolor imaginable) y un índice funcional mediante múltiples EVA. Se midió también la apertura bucal máxima interincisal no forzada (sin asistencia).
En el grupo de estudio se inyectó TB A (Botox®) en los músculos maseteros y temporales, a ambos lados, en 5 puntos dispersos para cad vientre muscular. En el grupo de control se inyectó suero salino fsiológico, siguiendo la misma distribución que en grupo de toxina. Se realizaron entrevistas sucesivas a las 2, 4, 8 y 16 semanas del tratamiento.
RESULTADOS
Destacan una apertura bucal prácticamente normal en los dos grupos (39,6 en el de Toxina y 37,3 en el del placebo). El dolor se localizó preferentemente en ambos músculos maseteros, mientras que en los temporales, la localización se dio en la mitad de los casos, aproximadamente.
Dolor. La mejora global fue acentuada en ambos grupos, con una destacada significación estadística (p<0,001), pero igual para ambos.
Efectos secundarios. Los pacientes tratados con TBA muestran una marcada incidencia de pérdida de eficacia masticatoria. De los 13 pacientes tratados con TBA 12, es decir, el 87,5 %, presentaron dicho síntoma, en ocasiones como síntoma dominante, acompañado de sensación de fatiga al masticar (p<0,0001).
CONCLUSIONES
La Toxina botulínica muestra la misma eficacia analgésica que el placebo. La respuesta analgésica al dolor global y activo tiene significación estadística en ambos grupos y se mantiene a lo largo de 16 semanas.
En conclusión, la TBA es eficaz en el tratamiento del SDMFM, al igual que lo es el placebo. Estos resultados implican la existencia de un efecto físico local a nivel de los puntos o bandas gatillo tipo punción seca o, simplemente, placebo.
INTRODUCTION
In the current literature, Masticatory Myofascial Pain Syndrome (MMPS), affects even 25% of general population. It affects mostly women (75-88,5%) from 20 to 40 years old. Main symptoms are trismus, facial pain, weakness and limitation of function in masseter (79-84%) and temporal (56-65%) muscles, followed by internal and external pterygoid and digastric muscles. Sternocleidomastoid, Splenius, Trapezius, perioral and frontal muscles can be also painful. Masseter complaint characteristically presents a taut or trigger band, localized in the middle of the muscle, painfull on palpation. MMPS often associates to depression, anxiety, and sleep disorders.
Current literature on chronic pain considers that masticatory MMPS is due to central and peripheral mechanisms of Neuromuscular System, like MPS of trunk and limbs, though its exact origin is still uncertain. Different theories associate an excess of muscle activity, with final toxic metabolites release. Predisposing factors are bad body postures, sedentary life, nutritional imbalance- especially vitamin deficiency-, parafunctional habits, sleeps disorders and joint disorders.
Most often, MMPS therapy has included prolonged use of non esteroidal anti-inflammatory agents, oclusal splints, muscle relaxants, antidepressives, or physical and behavioral therapies. Demonstrated useful local treatments are dry needling and infiltration of diverse agents, including physiologic saline solution.
Hypothesis: Botulinum Toxin is an effective therapeutic method in MMPS.
Objectives: To evaluate efficacy, side effects, of Botulinum Toxin A (BTA) in a group of voluntary patients affected of MMPS, by means of a parallel, double-blind, randomized study.
MATERIAL AND METHODS
A prospective, uni-centric, randomized, controlled, and double-blind study was designed to evaluate the efficacy of BT in the treatment of MMPS. Patients who accepted to be involved in the study were left to the Multiaxial Clinical Inventory (Millon II) to evaluate their personality.
From September 2001 to September 2002, 72 patients accepted to be involved in this study. Diagnosis of MMPS was based on Dworkin and LeResche Research Diagnostic Criteria for Temporomandibular Disorders (RDCTMD) corresponding to muscular disorders (group I), for MMPS. Thirty patients were randomly selected and distributed in two groups:
· BT
· Placebo
Patients in both groups filled a questionnaire about pain and side effects of treatment. Pain was measured using Visual Analogical Scale (VAS) before, 2, 4, 8 and 16 weeks after treatment. Maximal not assisted interincisal aperture was also measured.
Study group was treated by injecting BT A (Botox®) in masseter and temporal muscles, both sides, in five different points. Control group was treated by injecting saline solution using the same distribution than study group.
RESULTS
Both groups showed a near normal mouth opening (39,6 for BT group and 37,3 placebo. Pain was found in all masseter, and in half of the temporal muscles, approximately.
Pain. Global improvement was significant in both groups (p<0,001), but there was no difference between them.
Side effects. Twelve of 13 patients, that is, 87,5%, treated with BTA showed a marked loss of efficiency and weakness sensation on chewing.
CONCLUSIONS
BTA has the same analgesic efficacy than placebo. Analgesic response to global and active pain has statistical significance and is maintained along 16 weeks.
In conclusion, BTA is effective in treatment of MMPS, as much as placebo. These results imply the presence of a local physical effect at the level of trigger points or bands like dry needling or simply, placebo.
Rodriguez, Miryam Guillermina Palomino. „Avaliação dos efeitos antitumorais da metaloproteinase ofídica jararagina no adenocarcinoma de mama“. Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-17122014-110755/.
Der volle Inhalt der QuelleThe present study investigated the in vitro effects of metalloproteinase jararhagin in human breast tumor cells model MCF7 and T47D, murine tumor cells (Ehrlich\'s tumor), and normal cells, assessing cell viability, morphological alterations, changes in the cell cycle phases and death cell, as the effects on ascitic and solid orthotopic murin Ehrlich tumor. The results showed that jararhagin significantly decreases adhesion and cell viability in a dose dependent, with cells aggregates and spheroids with tubulo-acinar formation. The in vivo parameters showed no decrease in ascites tumor volume, however, the orthotopic model, jararhagin induces the inflammatory response and extracellular matrix remodeling with changes in the collagen distribution and organization. It is concluded that jararhagin induces cytotoxicity in breast tumor and normal cell lines, and was able to induce inflammatory infiltrate during the growth and dissemination of tumor cells.
Moysés, Felipe dos Santos. „Efeito da exposição ao efluente de curtume em diferentes modelos animais“. reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/122343.
Der volle Inhalt der QuelleActually, chemicals have been widely released to the environment. Among the many pollutants emitted into the environment, the effluent from the leather industry is considered one of the greatest contamination of water resources. In this context, the oxidative stress has been suggested as a central biochemical mechanism of toxicity from several environmental toxicants, and changes in the enzymes activities responsible for the detoxification of xenobiotics can be used in monitoring the harmful effects of these substances. Thus, this study aimed to evaluate the effect of exposure to tannery wastewater on oxidative parameters, and mainly studying the enzymatic activities in different animal models. In the first step of this study, it was evaluated the effects of in vitro exposure to tannery wastewater on oxidative status, and activities of superoxide dismutase, glutathione peroxidase and glutathione S-transferase in brain structures (cortex, striatum and hippocampus) and liver of the rats and mice. It was observed that exposure to tannery wastewater induced an increase in the activity of glutathione peroxidase and glutathione S-transferase in the rats liver, whereas no changes were detected in the hepatic enzymes in mice. Regarding the formation of reactive species, there was an increase in the mice liver, and it was not detected any effect in rat liver This result may be related to the increase in the activity of glutathione peroxidase and glutathione S-transferase since these enzymes have been related to detoxification of xenobiotics. Exposure to effluent induced similar effects in brain structures from rats and mice, since there was an increased in the free radical levels in the cerebellum, hippocampus and cortex, as well as a similar profile in the activity of the enzymes evaluated in these brain structures from both species. These results suggest that mice are more susceptible since the exposure did not cause an increase in the activity of the enzymes glutathione system in the liver, indicating that the central bioavailability of the compounds in tannery wastewater may be higher in mice. In the second section, it was evaluated the effects of exposure of adult Drosophila melanogaster placed for 72 hours with tannery effluent. After exposure, mortality was quantified, and it was evaluated the activities of superoxide dismutase, glutathione peroxidase and glutathione S-transferase. In this work, exposure to tannery effluent induced lethality in flies. We also detected an increase in glutathione peroxidase activity. However, there was a decrease in the glutathione S-transferase activity in flies exposed to contaminant. Considering these results, it is possible to suggest that exposure to tannery effluent can modify the enzymatic antioxidant system in insects, and Drosophila melanogaster is a reliable model to evaluate the toxicity induced by tannery wastewater. The results of this study support the idea that alterations in enzymatic antioxidant system may be associated with toxic effects of exposure to tannery wastewater and, in part, these changes can clarify the mechanism by which the contaminant causes a divergent response in rodents and insects.
Toledo, Paula Nunes. „Efeito da terapia miofuncional em pacientes com paralisia facial de longa duração associada à aplicação de toxina botulínica“. Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5158/tde-19042007-090802/.
Der volle Inhalt der QuelleINTRODUCTION: The facial paralysis is constraining so much of the functional point of view as aesthetic. This research had for goal verified the myofunctional therapy effect in patients with long-standing facial paralysis associate to the botulinum toxin application. METHODS: Twenty-five patients were treated, divided into two groups. The patients from the group A received four sessions of myofunctional therapy before the toxin botulinum application and the patients from the group B received it simultaneously to the application. The therapy was composed by isometric and passive isotonic maneuvers, inside and outside oral, and resistance exercises. RESULTS: After the myofuncional therapy the patients presented significant increase of the mobility of the paralyzed side, of the patient satisfaction index with the face, Functional Index of the Face (IFF) and of the Index of Social Welfare (IBES). The group of patient that accomplished the myofuncional therapy previously presented significantly larger frequency of talking difficulty, while the group that accomplished the miofuncional therapy from the toxin botulínica application date presented significantly larger frequency of chewing difficulty. The myofuncional therapy promotes facial symmetry; patients satisfaction with the face, myofuncional functionality, life quality, and should be accomplished before and after toxin botulínica application to reduce the possible adverse effects.
Cintra, Mariana de Jesus. „Impacto da imunidade prévia nos efeitos adjuvantes da toxina termo-lábil (LT) de Escherichia coli enterotoxigênica“. Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-24022016-114438/.
Der volle Inhalt der QuelleLT toxins are expressed by enterotoxigenic Escherichia coli strains and display strong adjuvant effects. Nonetheless, the impact of preexisting immunity on the on LT adjuvant activities is still unknown. Thus, the present study evaluated the impact of pre-existing immunity in the inflammatory and adjuvant properties of LT after subcutaneous administration. the NS1 of dengue virus was employed as a model antigen and two experimental approaches were evaluated: (i) in vitro incubation of LT with LT-specific antibodies and the ganglyoside receptor (GM1) before administration to naïve mice in combination with NS1; (ii) immunization with NS1 co-administered with LT in mice previously exposed to LT. The local inflammatory effects induced by LT were evaluated as wel as the adjuvant effects by means of NS1-specific humoral response. Our results indicate that the LT pre-existing immunity does not affect the inflammatory and adjuvant activities of the toxin. In addition, exposure to GM1 reduced the local inflammatory reactions without affecting the toxin adjuvant effects.
Cartágenes, Maria do Socorro de Sousa. „Investigação dos efeitos toxicos e anti-hipertensivo de Arrabidaea chica Verlot (Bignoniaceae)“. Universidade Federal da Paraíba, 2010. http://tede.biblioteca.ufpb.br:8080/handle/tede/6828.
Der volle Inhalt der QuelleCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
The species Arrabidaea chica (Bignoniaceae) is indicated to treatment of skin illnesses, renal stones, systemic arterial hypertension, as an antiinflammation and antianemia. In this paper it was avaliated the toxical effect of the extract of leaves of Arrabidaea chica Verlot (EAC), the chemical composition of EAC and the performance of EAC n the cardiovascular system of normotense and hypertense rats SHR. To the preparation of the EAC it was used dried pulverized leaves, macerated in ethanol 70%. After that the obstention of the EAC this was fractioned when it obtained several fractions among them the F63, this because of presenting in chromatrography compared and thinned. It was cleaner and in a major quantity. It was analysed in farmacological experiments, 1RMNH and CLAE. In the chemical composition of the EAC, it was detected the presence of flobafenical tanines, flavonos and steroidal componnds. In the the fraction F63 it was observed characteristic signals as to the alifatical componnds and aromatical. Among several possibilities they can beflavonoidal. To the avaliation of the acute toxicity (DL50) adult mice of both sexes received saline (0,1ml/10 g v. o) or EAC (0,5m 1,0 e 2,0 g/kg, ip), this didn t cause the death of animals as well it didn t get the behaviour alterations or macroscopic alterations of organs if compored to the control group. The treatment of rats with saline (0,1 mL/ 100g) and EAC (0,5,-5,0 g/kg, v.o), didn t cause deaths, nor behaviour or macroscopic alterations of the organs after antopsy. Finished the period of 14 days of treatment the blood was collected to its hematological and biochemical analysis, there wasn t difference between the control groups and treated in relation to the ration consume, corporal weight as well it wasn t detected alterations of behaviour or in the macroscopic analysis of the organs. The EAC (1,0 g/ kg) promoted meanful alteration in the VCM and in the doses of hemoglobine. The EAC of Arrabidaea chica Verlot (1 g/kg) promoted meanful alterations in the creatine, urea and cholesterol (HDL), in the dose of 0,5 g/Kg. It promoted, also, meanful alterations in the urea and in the HDL. The EAC (2,0 g/ kg) altered the glicosis, AST and total cholesterol, as to the dose of 3,5 g/Kg the EAC altered glicosis and total cholesterol. The EAC (5,0 g/kg) promoted alterations of glicosis, AST, urea and HDL the EAC (0,1; 0,2 e 0,5 g/kg, v.o.) administrated to hypertense rats SHR produced hypotension (38,2%; 49,9% and 34,4%) and bradicardia (13,4%; 15,35 % and 15,25%) as to the controls. In normotense animals there was reduction of the tension pressorical levls without alterations of the cardial frequence. In the menseterical superior arteries isolated of normotense rts or hypertense SHR submitted to chronical treatment with EAC for 60 days it was possible to detect reductions of the maximal effect and displacement of the curve of presence of noradrenalin when compared to the tissues of the respective control groups. In the analysis in vitro performed in rings of mesenterical superior artery isolated of rats with and without functional endothelial, in the presence and absence of the EAC (100-500 μg/mL) and F63 (10-30μg/mL) ocorred reduction of the maximal effect in the three used doses, in a way that the dependent dose and statistically meanful action in preparations of the mensenteric pre-contractd artery with moradrenalin, the EAC (10-500 μg/mL) and F63 (10-50μg/mL) promoted the dependent relaxing of dose both in the presence of the endotelial and in the absence of it. In the presence of L-NAME or indometacine, the EAC didn t promoted difference of the vasorelaxing. The EAC promoted a relaxing in precontracted preparations with KCI 80 mM bolh in the presence and in the absence vascular endotelial. The EAC (50-500 μg/mL) and F63 (10-30 μg/mL) reducted the maximal induced contractions per CaCl2. In precontracted preparations with S-(-)BayK 8644, the EAC (10-500 μg/mL) and F63 (10-300 μg/mL) promoted relaxing. The induced contractions per caffeine in a free ambience of calcium were inhibited by EAC, but the F63 didn t promoted alterations of the induced contractions by noradreline or caffeine. In a set these results suggest that the hypotension produced by the EAC of Arrabidaea chica Verlot can be realted to a diminution of the periferical total resistence in consequence of the participation of the bhlocade of the canaes CaV1.2 in cells of the vascular smooth muscle as well as the blocade of the rianodine channels.
A espécie vegetal Arrabidaea chica Verlot (Bignoniaceae) é indicada para o tratamento de enfermidades da pele, cálculos renais, hipertensão arterial sistêmica, como antiinflamatório e antianêmico. Neste trabalho avaliou-se extrato das folhas de Arrabidaea chica Verlot (EAC), a composição química do EAC, sua toxicidade e atividade no sistema cardiovascular de ratos normotensos e hipertensos SHR. Para a preparação do EAC usou-se folhas secas pulverizadas e maceradas em etanol 70%. Após a obtenção do EAC este foi fracionado obtendo-se várias frações, dentre as quais a F63, que por apresentar em cromatrografia comparativa delgada, mais limpa e em maior quantidade, foi analisada em experimentos farmacológicos, 1RMNH e CLAE. Na composição química do EAC, detectou-se a presença de taninos flobafênicos, flavononois, flavonononas e compostos esteroidais. Na fração F63, observou-se sinais característicos para compostos alifáticos e aromáticos que dentre várias possibilidade, podem ser flavonóides. Para a avaliação da toxicidade aguda (DL50) camundongos adultos, de ambos os sexos, receberam salina (0,1 ml/ 10g) ou EAC (0,5, 1,0 e 2,0 g/kg, ip), o que não produziu morte dos animais, bem como, não causou alterações comportamentais, ponderal ou alterações macroscópicas dos órgãos comparando-se ao grupo controle. O tratamento dos ratos com salina (0,1 mL/ 100g) e EAC não causou mortes, alterações comportamentais ou macroscópicas dos órgãos após autópsia. Ao final do período de tratamento de 14 dias, o sangue foi coletado para análise hematológica e bioquímica. Não houve diferença entre os grupos controle e tratado em relação ao consumo de ração, de água, peso corpóreo, bem como, não foram detectadas alterações de comportamento ou na análise macroscópica dos órgãos. O EAC (1,0 g/ kg) promoveu alteração significativa no VCM e na dosagem de Hemoglobina. O EAC de Arrabidaea chica Verlot (1 g/kg) promoveu alterações significativas na creatinina, uréia e HDL, na dose de 0,5 g/Kg, promoveu alteração significativa na uréia e no HDL. O EAC (2,0 g/ kg) alterou a glicose, AST e colesterol total, já na dose de 3,5 g/Kg o EAC alterou glicose e colesterol total. O EAC (5,0 g/kg) promoveu alteração de glicose, AST, uréia e HDL. O EAC (0,1; 0,2 e 0,5 g/kg, v.o.) administrado a animais SHR produziu hipotensão (38,2%; 49,9% e 34,4%) e bradicardia (13,4%; 15,35 % e 15,25%), com relação aos controles. Em animais normotensos houve redução dos níveis tensionais pressóricos sem alteração da freqüência cardíaca. Nas artérias mesentérica superior isoladas de ratos normotensos ou hipertensos SHR submetidos ao tratamento crônico com EAC por 60 dias foi possível detectar redução do efeito máximo e deslocamento da curva na presença de noradrenalina quando comparado aos tecidos dos respectivos grupos controles. Na análise in vitro realizadas em anéis de artéria mesentérica superior isolada de rato com e sem endotélio funcional, na presença e ausência do EAC (100- 500 μg/mL) e F63 (10 - 30μg/mL) ocorreu redução do efeito máximo nas três doses utilizadas, de maneira dose dependente e estatisticamente significante em preparações com endotélio intacto. Já preparações de artéria mesentérica pré-contraídas com noradrenalina, o EAC (10-500 μg/mL) e F63 (10-50μg/mL) promoveram relaxamento dependente de dose tanto na presença do endotélio quanto na ausência do mesmo. Na presença de L-NAME ou indometacina, o EAC não promoveu diferença do vasorelaxamento. O EAC promoveu um relaxamento em preparações pré-contraídas com KCl 80 mM, tanto na presença quanto na ausência do endotélio vascular. O EAC (50-500 μg/mL) e F63 (10-30 μg/mL) reduziram as contrações máximas induzidas por CaCl2. Em preparações pré-contraídas com S-(-)BayK 8644, o EAC (10-500 μg/mL) e F63 (10-300 μg/mL) promoveram relaxamento. As contrações induzidas por cafeína em meio livre de cálcio foram inibidas pelo EAC, porém a F63 não promoveu alterações das contrações induzidas por noradrenalina ou cafeína. Em conjunto, estes resultados sugerem que a hipotensão produzida pelo EAC de Arrabidaea chica Verlot pode estar relacionada a uma diminuição da resistência periférica total em conseqüência da participação do bloqueio dos canais CaV1.2 em células da musculatura lisa vascular, bem como, bloqueio dos canais de rianodina.
Bücher zum Thema "EFECTO TOXICO"
Pérez Reytor,, Diliana Celeste. Identificación de nuevos marcadores de virulencia en cepas no toxigénicas de vibrio parahaemolyticus. Universidad Autónoma de Chile, 2019. http://dx.doi.org/10.32457/20.500.12728/87462019dcbm7.
Der volle Inhalt der QuelleToledo Rivera, Camilo Enrique. Rol del núcleo retrotrapezoide en el desarrollo de alteraciones cardiorrespiratorias en insuficiencia cardiaca. Universidad Autónoma de Chile, 2018. http://dx.doi.org/10.32457/20.500.12728/87442018dcbm5.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "EFECTO TOXICO"
SILVA, WILLAMS ALVES DA, KELLY GUEDES DA SILVA, KRISTIANA CERQUEIRA MOUSINHO, MARY ANNE MEDEIROS BANDEIRA, ISABEL MICHELY DA SILVA GALVAO DE MELO, PEROLA PALOMA SILVA DO NASCIMENTO, LUZIA ABILIO DA SILVA und SONIA PEREIRA LEITE. „ANTI-INFLAMATÓRIOS NÃO - ESTEROIDAIS: USO INDISCRIMINADO EM IDOSOS E SEUS RISCOS À SAÚDE“. In Brazilian Congress. brazco, 2020. http://dx.doi.org/10.51162/brc.health2020-00037.
Der volle Inhalt der QuelleBittencourt, Mariana Lemos Meyer, Vera Lígia Oliveira Valente, Emília Alcântara Moreira, Camila Barbosa Rodrigues und Yara de Fátima Hamú Castanheira. „USO DA TOXINA BOTULÍNICA NO TRATAMENTO DA ENXAQUECA“. In I Congresso Brasileiro de Bioquímica Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/649.
Der volle Inhalt der QuelleGomes, Marcel da Silva Amorim, Raquel Nogueira de Medeiros und Alice Gonçalves Martins Gonzalez. „Comportamento de Escherichia Coli Produtora de Toxina Shiga (Stec) Sob O Efeito de Diferentes Níveis de Temperatura e Ph“. In XII Latin American Congress on Food Microbiology and Hygiene. São Paulo: Editora Edgard Blücher, 2014. http://dx.doi.org/10.5151/foodsci-microal-042.
Der volle Inhalt der QuelleSilva, Letícia Queiroz, und Déborah Bianca Santos Martins. „DERMOCOSMÉTICOS E PROCEDIMENTOS ESTÉTICOS UTILIZADOS NO ENVELHECIMENTO CUTÂNEO“. In II Congresso Brasileiro de Ciências Farmacêuticas On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/774.
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