Níveis de citocinas proinflamatórias e seus antagonistas em pacientes com insuficiência aórtica crônica importante / Proninflamatory cytokine and antagonists levels with chronic severe aortic regurgitation
São Paulo; s.n; 2004. [125] p. ilus, tab, graf.
Thesis
in Portuguese
| LILACS
| ID: lil-397879
RESUMO
Realizamos estudo transversal com um grupo homogêneo constituído de 90 pacientes com insuficiência aórtica crônica importante, de etiologia reumática. Foram realizadas dosagens plasmáticas de citocinas proninfmamatórias a saber Fator de necrose tumoral alfa( TNF ), receptores solúveis de TNF tipo I e II ( sTNFRI e sTNFRII ), interleucina 6 ( IL-6 ) e seu receptor solúvel ( IL-6R ), inteleucina 1-beta ( IL-1B ), antagonista do receptor de IL-1 ( IL1-RA ) e endotelina-1. Realizado o polimorfismo 308 do gene do TNF. Observamos níveis aumentados de TNF, IL-6 e sTNFRI em relação a indivíduos normais. Pacientes sintomáticos e assintomáticos tiveram níveis semelhantes de citocinas. O polimorfismo TNF 1/2 foi mais frequente em indivíduos assintomáticos. O aumento dos diâmetros ventriculares correlacionou-se a diminuição dos níveis de sTNFR II. /We made a transversal study in a homogeneous group of rheumatic patients with chronic severe aortic regurgitation. We determined plasma levels of the following proinflamatory cytokines Tumor necrosis factor-alpha ( TNF ) and its soluble receptors type I and II ( sTNFR I and sTNFR II ), Interleukin-6 ( IL-6 ) and its soluble receptor ( IL-6R ), interleukin-1 beta ( IL-1 beta ), antagonist of the IL-1 receptor ( IL1-RA ) and endothelin-1. The -308 genetic polimorphism os the TNF gene was made. Plasma levels of TNF, IL-6 and sTNFRI were increased in asymptomatic and symptomatic in relation to controls. There were similar levels of cytokines in asymptromatic and symptomatic patients. The polimorphism TNF 1/2 was more frequent in asymptomatic patients. Increase of ventricular diameters was correlated to decrease...
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Index:
LILACS (Americas)
Main subject:
Aortic Valve Insufficiency
/
Rheumatic Heart Disease
/
Cytokines
Type of study:
Observational study
/
Prevalence study
/
Risk factors
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
Portuguese
Year:
2004
Type:
Thesis
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