Dissertations / Theses on the topic 'CD11b/CD18'
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Weitzman, Jonathan B. "Characterisation of the 5' regions of the leukocyte integrin CD11b/CD18 genes." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292365.
Full textGesenberg, Jan [Verfasser]. "CD11b/CD18 Knock-Out reduziert die Anfälligkeit für ventrikuläre Tachykardie und die Infarktgröße / Jan Gesenberg." Köln : Deutsche Zentralbibliothek für Medizin, 2018. http://d-nb.info/1153425432/34.
Full textBLOUIN, ERIC. "Etude des mecanismes de regulation de l'activation des integrines 2 cd11b/cd18 des polynucleaires neutrophiles." Paris 6, 2001. http://www.theses.fr/2001PA066271.
Full textRieu, Philippe. "Etude de l'integrine cd11b/cd18 : analyse moleculaire et role au cours de l'adherence des neutrophiles." Paris 7, 1997. http://www.theses.fr/1997PA077273.
Full textSantos, Andressa Cristina Antunes. "Efeito da desnutrição proteica sobre aspectos da mobilização, migração e sinalização celular. Papel da glutamina na modulação desses processos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/9/9136/tde-28042016-104055/.
Full textMalnutrition is a nutritional condition that can affect many aspects of immune responses, affecting cell migration, phagocytosis, bactericidal response and changing free radicals production as nitrogen species and production of proinflammatory cytokines. Therefore, malnourished individuals are more susceptible to infections. Once glutamine is an amino acid of extreme importance to the functionality of various immune cells and those cells exhibit increased use of this amino acid during infectious processes. In this work was investigated, the effects of glutamine in some aspects of mobilization, cell migration and signaling in an experimental model of protein malnutrition. For this purpose, we used BALB/c mice, which received isocaloric diets, normoproteic or hypoproteic, containing respectively, 12% (Control group) and 2% (Malnourished group) of protein for a period of 5 weeks. The animals in both groups, for in vivo evaluations, received intravenous 100 µl of a solution containing 1.25µg of LPS and after 1 hour 0.75mg/kg of L-glutamine (GLUT). After the malnutrition period or the inflammatory process induction, the animals were euthanized and biological samples were collected. Were evaluated blood count, bone marrow, the cytokines IL-10 and TNF-α circulating and expression of CD11b/CD18 in granulocytes from peripheral blood of animals stimulated in vivo. In vitro were evaluated the migratory capacity, the expression of CD11b/CD18 polymorphonuclear bone marrow and peripheral blood, as well as the cytokines synthesis IL-1α, IL-6, IL-10, IL-12 and TNF-α and the expression of NF-κB and IκBα in cultured cells in media with 0; 0.6; 2 and 10 mM GLUT. Malnourished animals presented anemia, leukopenia, marrow hypoplasia and lower serum proteins, albumin and prealbumin. The GLUT in vitro has the capacity to reduce IL-1α and IL-6 as well as the activation of the NF-κB. In in vivo model, the GLUT altered neutrophil migration kinetics and reduced the expression of CD18, as well as decreased levels of circulating TNF-α in animals stimulated with LPS.
Berti, Verena Dorothea [Verfasser], and Karlheinz [Akademischer Betreuer] Peter. "Die molekulare MR-Bildgebung des Monozytenintegrins Mac-1 (CD11b/CD18) optimiert nicht die Detektion von Monozyten in atherosklerotischen Plaques von ApoE−/−-Mäusen." Freiburg : Universität, 2011. http://d-nb.info/1123460205/34.
Full textThieblemont, Nathalie. "Role des recepteurs cr1 (cd35) et cr3 (cd11b/cd18) dans la penetration et la replication du virus de l'immunodeficience humaine (vih) dans les monocytes/macrophages." Paris 6, 1993. http://www.theses.fr/1993PA066651.
Full textFaulhaber, Fabrízia Rennó Sodero. "Expressão de marcadores de superfície de neutrófilos em recém nascidos ictéricos antes e após a fototerapia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/179819.
Full textJaundice due to indirect hyperbilirubinemia affects more than 60% of term neonates. The treatment when necessary is carried out using phototherapy. There are no studies in the literature evaluating the effect of phototherapy on the function of neonates' neutrophils. A better understanding of the function of neutrophils in neonates before and after phototherapy would be important in order to assess potential effects on the expression of neutrofils triggered by the phototherapy treatment. The aim of this study was to assess and compare the function of neutrophils by measuring the expression of the main surface markers in icteric neonates, using flow cytometry, before and after 24 hours of phototherapy. Methodology: Neonates at a gestational age ≥ 35 weeks and at a birth weight ≥ 2000g who met the criteria of the American Academy of Pediatrics for phototherapy were included. The exclusion criteria were: congenital malformations, syndromes with chromosomal alterations, inborn errors of metabolism, infections of the STORCH group, neonatal asphyxia, sepsis or suspicion of sepsis, exchange transfusion, transfusion of blood components, and use of immunoglobulin. The evaluation of the MFI expression of CD10, CD11b, CD11c, CD15, CD16, CD18, CD62L, CD64 and CD66 was performed before and 24 hours after the initiation of phototherapy. The chi-square and Student T tests were used for data analysis. Results: Twenty-five neonates were included in the study at the mean age of 53 (27.5- 75.5) hours of life and with a mean bilirubin level of 13.6±2.85 mg/dL. There was no statistical difference in the expression of CD11b, CD15, CD18, CD62L, CD64 and percentage of neutrophils before and after 24 hours of phototherapy. There was an increase in the expression of CD10 (p=0.038) and CD16 (p=0.017) and a reduction in 10 the expression of CD11c (p=0.023) and CD66acde (p=0.004) after 24 hours of phototherapy. Conclusion: The newborns submitted to phototherapy had increased expression of CD10 and CD16 and decreased expression of CD11c and CD66acde after 24 hours of exposure, which may be related to an anti-inflammatory effect of phototherapy on the neonates exposed to this treatment.
Schallner, Nils. "Evaluation des diagnostischen und therapeutischen Potentials des aktivationsspezifischen, gegen das Leukozytenintegrin Mac-1 (CD11b/CD18, alphaM/beta2) gerichteten, monoklonalen Einzelketten-Antikörper MAN-1 funktionelle Charakterisierung und ex-vivo Evaluation an Sepsis-Patienten /." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:25-opus-49341.
Full textWelcker, Silvia. "Selektion konformationsspezifischer Aptamere sowohl gegen das aktivierte Leukozytenintegrin Mac-1 (alphaM beta 2, CD11b, CD18) als auch gegen den nicht aktivierten und aktivierten Integrin-Rezeptor alphaV Beta 3 (Vitronektin-Rezeptor, CD51,CD61)." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:25-opus-44251.
Full textEisenhardt, Steffen Ulrich. "Die Entwicklung einer neuen Strategie zur Herstellung von Antikörpern gegen konformationsspezifische Epitope des Leukozyten-Integrins Mac-1 (CD11b,CD18; alpha M beta 2) mittels Einzelketten-Phagen-Display-Technologie neue Möglichkeiten des funktionsspezifischen Monotorings und der Blockade der Leukozytenfunktion /." [S.l. : s.n.], 2005.
Find full textLima, Wanderson Geraldo de. "Leishmaniose visceral canina: estudo quantitativo e comparativo da expressão do receptor do complemento do tipo 3 (CR3 CD11b/CD18) com alguns aspectos histológicos e parasitológicos do baço, fígado e linfonodos de cães naturalmente infectados com Leishmania (Leishmania) chagasi." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/ECJS-7X4LGW.
Full textEste trabalho teve como objetivo estudar alguns aspectos clínicos, histopatológicos, parasitológicos e imunológicos, de cães naturalmente infectados com Leishmania (Leishmania) chagasi. O enfoque principal foi o de comparar a expressão do receptor do complemento do tipo 3 (CR3 - CD11b/CD18) no baço, fígado, linfonodos (axilares, cervicais e poplíteos) com alguns aspectos clínicos, histológicos e parasitológicos. Para isso, foram utilizados dez animais não infectados (grupo controle) e trinta animais infectados. Todos eram provenientes da região do Município de Sabará/MG sem raça e idade definidos. Os animais infectados foram subdivididos em dois grupos: grupo denominado assintomático composto por dez animais que não apresentavam sinais clínicos da doença; (2) grupo denominado sintomático: composto por vinte animais que apresentavam sinais clínicos clássicos da doença como lesões de pele (alopecia, eczemas, seborréia, ulcerações), perda de peso e linfadenopatias. Em necropsia, fragmentos de baço, fígado, linfonodos (axilares, cervicais e poplíteos) e pele (orelha, espelho nasal e abdômen) foram coletados, fixados em solução de formol a 10% tamponado e em seguida processados pelas técnicas rotineiras de histopatologia. Cortes parafinados dos diversos tecidos foram montados em lâminas histológicas e corados pela Hematoxilina e Eosina (H&E), e pela técnica Imuno-histoquímica da estrepto -avidina- peroxidade para análises microscópica e parasitológica, respectivamente. Cortes criopreservados dos mesmos tecidos, com a exceção dapele, foram corados pela técnica imuno-histoquímica da estrepto-avidina-peroxidade para marcação tecidual das proteínas CD11b e CD18 (CR3). A expressão tecidual e celular de CR3 (CD11b/CD18) foi acessada por técnicas de morfometria digital (avaliação do número e técnicas de densitométrica óptica). Nossos resultados revelaram uma expressão densitométrica e celular do CR3 aumentada em animais infectados quando comparada a animais controle, mas não diferente entre os animais assintomáticos e sintomáticos. Correlações positivas foram encontradas entre a presença do parasitismo tecidual e a expressão das proteínas CD11b e CD18 no baço e linfonodo cervical e negativa para e o parasitismo hepático. De fato, animais sintomáticos apresentaram uma maior expressão de CR3 no baço e nos linfonodos cervicais, associada também a um maior parasitismo tecidual. Por outro lado, no fígado ocorreu uma maior expressão tecidual de CR3 em animais assintomáticos do que os sintomáticos. Entretanto, isto foi associado a um menor parasitismo nesses animais. Podemos dizer, então que a resposta imune parece ser órgão-específica (compartimentalização da resposta imune), em que as células inflamatórias exercem um papel imune distinto em diferentes órgãos. Às vezes, podem atuar como fonte de perpetuação da infecção, ou às vezes, como células efetoras capazes de controlar a infecção por Leishmania. Seguindo nossos resultados, em que os animais sintomáticos apresentam maior expressão de CR3 e maior taxa de parasitismo no baço e linfonodos, podemos permite atribuir a essas células (monócitos-macrófagos) papel na manutenção da infecção.
Davis, Jon Michael. "The modulation of polymorphonuclear neutrophil function by cytotoxic necrotizing factor type 1 -- expressing uropathogenic Escherichia coli /." Download the dissertation in PDF, 2005. http://www.lrc.usuhs.mil/dissertations/pdf/JDavis2005.pdf.
Full textChvojková, Věra. "Adenylátcyklázový toxin Bordetella pertussis jako marker pro studium endocytózy komplementového receptoru CD11b/CD18." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-309276.
Full textWelcker, Silvia [Verfasser]. "Selektion konformationsspezifischer Aptamere sowohl gegen das aktivierte Leukozytenintegrin Mac-1 (αMβ2, CD11b-CD18) [(alpha-M-beta2, CD11b-CD18)] als auch gegen den nicht aktivierten und aktivierten Integrin-Rezeptor αvβ3 [alpha-v-beta3] (Vitronektin-Rezeptor, CD51/CD61) / vorgelegt von Silvia Welcker." 2008. http://d-nb.info/987671367/34.
Full textSchallner, Nils [Verfasser]. "Evaluation des diagnostischen und therapeutischen Potentials des aktivationsspezifischen, gegen das Leukozytenintegrin-Mac-1 (CD11b-CD18, αMβ2 [alpha M beta 2]) gerichteten, monoklonalen Einzelketten-Antikörper MAN-1 : funktionelle Charakterisierung und Ex-vivo-Evaluation an Sepsis-Patienten / vorgelegt von Nils Schallner." 2008. http://d-nb.info/988567008/34.
Full textEisenhardt, Steffen Ulrich [Verfasser]. "Die Entwicklung einer neuen Strategie zur Herstellung von Antikörpern gegen konformationsspezifische Epitope des Leukozyten-Integrins Mac-1 (CD11b-CD18; αMβ2 [alpha-M-beta-2]) mittels Einzelketten-Phagen-Display-Technologie : neue Möglichkeiten des funktionsspezifischen Monotorings und der Blockade der Leukozytenfunktion / vorgelegt von Steffen Ulrich Eisenhardt." 2007. http://d-nb.info/984261982/34.
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