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Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2004.tde-26102005-163503
Document
Author
Full name
Rubens Fraga Alves Pinto
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2004
Supervisor
Committee
Aiello, Vera Demarchi (President)
Afiune, Jorge Yussef
Caramelli, Bruno
Egito, Eryberto Steves Tabosa do
Mota, Cleonice de Carvalho Coelho
Title in Portuguese
"Avaliação imunohistoquímica das células inflamatórias presentes na parede de artérias pulmonares periféricas de pacientes com doença vaso-oclusiva pulmonar secundária a defeitos cardíacos congênitos"
Keywords in Portuguese
ARTÉRIA PULMONAR/patologia
ARTERIOPATIAS OCLUSIVAS/congênito
BIÓPSIA/métodos
CARDIOPATIAS CONGÊNITAS/diagnóstico
HIPERTENSÃO PULMONAR/fisiopatologia
IMUNOHISTOQUÍMICA/métodos
INFLAMAÇÃO
LINFÓCITOS T/patologia
Abstract in Portuguese
Para avaliar a hipótese da presença de inflamação em artérias pulmonares periféricas de pacientes com hipertensão pulmonar (HP) decorrente de cardiopatias congênitas, foram quantificadas células inflamatórias através de marcação imunohistoquímica em biópsias de 26 pacientes e comparadas com 11 controles sem cardiopatia. Detectou-se quantidades semelhantes de células inflamatórias nos dois grupos, mas com predomínio de linfócitos T no grupo controle e de macrófagos jovens no grupo HP. Esses achados podem estar relacionados com a redução do estímulo dependente de macrófagos para diferenciação e maturação de linfócitos T nos cardiopatas e/ou a deficiência imunológica primária nesses pacientes
Title in English
Immunohystochemical evaluation of inflammatory cells in the walls of peripheral pulmonary arteries from patients with pulmonary vasoclusive disease secondary to cardiac congenital defects
Keywords in English
ARTERIAL OCCLUSIVE DISEASES/congenital
BIOPSY/methods
HEART DEFECTS CONGENITAL/diagnosis
HYPERTENSION PULMONARY/physiopathology
IMMUNOHISTOCHEMISTRY/methods
INFLAMMATION
PULMONARY ARTERY/pathology
T-LYMPHOCYTES/pathology
Abstract in English
To evaluate the hypothesis of increased inflammation in peripheral pulmonary arteries from patients with pulmonary hypertension secondary to congenital cardiac shunts, we quantified the inflammatory cells with the aid of immunohystochemistry in 26 biopsies (HP group), comparing them to 11 patients with no cardiac disease. Similar quantities of inflammatory cells were observed in the two groups, with a predominance of T-lymphocytes in the controls and of young macrophages in the HP group. These findings could be related to a reduction of macrophagic stimulus to the differentiation and maturation of T-lymphocytes and/or to a primary immunological deficiency in patients with congenital cardiac shunts
 
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Publishing Date
2005-10-27
 
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