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https://doi.org/10.14670/HH-30.205
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Título: | Angiogenesis: a new surrogate histopathological marker is capable of differentiating between mild and significant portal hypertension |
Fecha de publicación: | 2015 |
Editorial: | F. Hernández y Juan F. Madrid. Universidad de Murcia: Departamento de Biología Celular e Histología |
Cita bibliográfica: | Histology and Histopathology, Vol. 30, n.º 2 (2015) |
ISSN: | 1699-5848 0213-3911 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::57 - Biología::576 - Biología celular y subcelular. Citología |
Palabras clave: | Cirrhosis Fibrosis area Microvessel density Nodule size |
Resumen: | Aim: Angiogenesis is considered an important pathophysiological feature of portal hypertension. We investigated the ability of angiogenesis, as CD34-positive microvessel density (MVD), to differentiate portal pressure in a CCl 4-induced rat cirrhosis model. Methods: Cirrhosis was induced by intraperitoneal injection of carbon tetrachloride in 46 male adult Sprague-Dawley rats. A catheter connected to a highly sensitive pressure transducer was inserted into the portal vein to continuously record portal pressure. Fibrosis area, nodule size and MVD were assessed by image morphometry. Results: Of 42 rats in which portal pressure was measured successfully, 27 (64%) had portal pressure ≥10 mmHg, defined as significant portal hypertension. MVD was 4.5-fold higher and fibrosis area 13.0-fold higher in rats with significant portal hypertension than in rats with portal pressure <10 mmHg. Portal pressure was significantly correlated with MVD (r=0.491, p<0.001) and fibrosis area (r=0.545, p﹤ 0.001) in all animals, but only MVD correlated with portal pressure (r=0.731 p<0.001) in rats with significant portal hypertension. The area under receiver operating characteristic curve for MVD in all rats was 0.953 (95% CI: 0.875-1.031) and optimum cutoff for MVD was 18/mm2, with 96.3% sensitivity and 93.3% specificity. Conclusions: We found that MVD, measured by CD34 immunostaining, was better able than the fibrosis area to discriminate significant portal hypertension in rats, suggesting that MVD could be a surrogate marker for portal hypertension in patients with liver diseases. |
Autor/es principal/es: | Hu, Dou-dou Habib, Sohail Li, Xin-min Wang, Tai-ling Wang, Bao-en Zhao, Xin-yan |
URI: | http://hdl.handle.net/10201/86612 |
DOI: | https://doi.org/10.14670/HH-30.205 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 8 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International |
Aparece en las colecciones: | Vol.30, nº2 (2015) |
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Hu-30-205-212-2015.pdf | 8,54 MB | Adobe PDF | Visualizar/Abrir |
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