Biliary Proliferation
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Effect of transient obstructive cholestasis on liver histology: a cross-sectional study
ABSTRACT BACKGROUND: The role of transient obstructive cholestasis on liver histology remains undetermined. OBJECTIVE: To investigate whether transient cholestasis impairs liver histology. DESIGN AND SETTING: Cross-sectional study at a public university hospital (UNICAMP), Brazil. METHODS: 169 individuals undergoing cholecystectomy, with or without chole
Sao Paulo Med. J.. Publicado em: 2021-08
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2. BAFF promotes regulatory T-cell apoptosis and blocks cytokine production by activating B cells in primary biliary cirrhosis
Primary biliary cirrhosis (PBC) is a chronic and slowly progressive cholestatic liver disease of autoimmune etiology. A number of questions regarding its etiology are unclear. CD4+CD25+ regulatory T cells (Tregs) play a critical role in self-tolerance and, for unknown reasons, their relative number is reduced in PBC patients. B-cell-activating factor (BAFF)
Braz J Med Biol Res. Publicado em: 10/05/2013
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3. Effect of blocking Rac1 expression in cholangiocarcinoma QBC939 cells
Cholangiocarcinomas (CCs) are malignant tumors that originate from epithelial cells lining the biliary tree and gallbladder. Ras correlative C3 creotoxin substrate 1 (Rac1), a small guanosine triphosphatase, is a critical mediator of various aspects of endothelial cell functions. The objective of the present investigation was to study the effect of blocking
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-05
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4. Advances in biliary atresia : from patient care to research
Biliary atresia, the most common cause of liver transplantation in children, remains a challenge for clinicians and investigators. The development of new therapeutic options, besides the typical hepatoportoenterostomy, depends on a greater understanding of its pathogenesis and how it relates to the clinical phenotypes at diagnosis and the rate of disease pro
Publicado em: 2011
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5. Advances in biliary atresia: from patient care to research
Biliary atresia, the most common cause of liver transplantation in children, remains a challenge for clinicians and investigators. The development of new therapeutic options, besides the typical hepatoportoenterostomy, depends on a greater understanding of its pathogenesis and how it relates to the clinical phenotypes at diagnosis and the rate of disease pro
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-06
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6. Histopathological diagnosis of intra- and extrahepatic neonatal cholestasis
The histopathology of the liver is fundamental for the differential diagnosis between intra- and extrahepatic causes of neonatal cholestasis. However, histopathological findings may overlap and there is disagreement among authors concerning those which could discriminate between intra- and extrahepatic cholestasis. Forty-six liver biopsies (35 wedge biopsies
Publicado em: 2010
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7. Avaliação da expressão dos fatores angiogênicos VEGF a e seus receptores e FGFB em tecido hepático de pacientes com atresia biliar
A atresia biliar (AB) é uma colangiopatia de etiologia indeterminada que leva à necessidade de transplante hepático, mesmo com a realização da Portoenterostomia em tempo hábil. O espessamento da camada média da artéria hepática sugere o envolvimento de um distúrbio angiogênico. Este estudo objetivou avaliar a expressão imunoistoquímica do VEGF A
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
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8. Influence of connexin 43 expression in biliaries ducts hyperplasia, after biliary common duct obstruction (coledoco) model in mice with deletion of one allele of the connexin / Influência da expressão da conexina 43 em modelo de hiperplasia de ductos biliares, após a ligação do ducto biliar comum (colédoco), em camundongos com deleção em um dos alelos para o gene da conexina 43
Atualmente, as pesquisas sobre a as células epiteliais biliares expressam uma grande quantidade de conexina 43. O presente estudo avaliou influência do genótipo de camundongos Cx 43 +/- ou Cx 43 +/+, sobre a hiperplasia de ductos biliares, após a ligação do ducto biliar comum (colédoco). Neste estudo, foram utilizados seis grupos de camundongos BALB/c
Publicado em: 2006
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9. Hepatic regeneration in african catfish (Clarias gariepinus) after partial hepatectomy. / Regeneração hepática em bagre africano (Clarias gariepinus) após hepatectomia parcial.
The liver is an important organ in studies aimed to the verification of animals reactions to chemical injuries. The partial hepatectomy (PH) is one of the methods that are usually employed in hepatic regeneration experiments. Our objectives in this work were to verify the influence of 30% and 70% PH on the hepatic cells proliferation index as it is measured
Publicado em: 2003
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10. Portal and periportal fibrosis in experimental extra-hepatic biliary obstruction in young and adult rats: contribution to biliary atresia study / "Fibrose portal e periportal na obstrução extra-hepática experimental em ratos jovens e adultos: contribuição para o estudo da atresia das vias biliares"
Biliary atresia is an hepatic disease of infancy. Etiology is unknown, and diagnosis is made by liver biopsy, with ductular proliferation being the main histological feature. Bile duct ligation in rats is an useful experimental model of biliary obstruction. The aim of this study of extra-hepatic cholestasis was analyse hepatic histological alterations in you
Publicado em: 2003
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11. Novo modelo experimental de obstrução biliar em ratos wistar
The purpose of this study was to create an obstruction in the biliary duct using a surgical procedure without ligatures, sectioning, or cannulation that would evolve to chronicity and develop into cirrhosis (or at least standard biliary fibrosis) and also to maintain an easily accessible extra-hepatic biliary route .The histopathologic assessment of the live
Publicado em: 2000
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12. Cytokeratin immunostaining for detection of biliary epithelium: its use in counting bile ducts in cases of liver allograft rejection.
AIMS--To see how useful the application of a bile duct specific cytokeratin antibody (AE1) was in identifying and counting bile ducts in liver allograft biopsy specimens. METHODS--Eighteen liver biopsy specimens showing acute rejection and 17 biopsy specimens plus six hepatectomy specimens showing chronic rejection were studied. Serial sections were cut and