Estudo experimental do impacto da clampagem selectiva da veia porta na função hepatocelular

Autor: Tralhão, JG, Abrantes, AM, Gonçalves, C, Carvalho, C, Portela, I, Laranjo, M, Oliveiros, B, Cardoso, D, Ribeiro, AB, Botelho, MF, Castro e Sousa, F
Jazyk: portugalština
Rok vydání: 2009
Předmět:
Popis: The influence of selective clamping of the elements of hepatic pedicle in the hepatocellular function and viability were evaluated in our department. AIM: Study the effect of selective clamping of the portal vein (CPV) in hepatocellular function in an animal model with normal liver. METHOD: Three groups of Wistar rats (males, 2 months) were subjected a CPV for 60 min: group A (n=21) submitted to a continuous inflow occlusion; group B (n=12) underwent to a CPV for 30 min with 5 min of reperfusion; group C (n=10) underwent a CPV for 15 min with 5 min of reperfusion. The group D (n=9) was not subjected to a CPV. A hepatic biopsy was done at the end of surgery. The degree of tissue injury was evaluated using: 1) blood markers: AST, ALT, total bilirubin (TB), GGT alkaline-phosphatase, LDH and hepatic extraction fraction (HEF) by radioisotopic methods three days before laparotomy (BS) and after surgery (AS); 2) apoptosis, necrosis were investigated after collagenase cell isolation from hepatectomy pieces by flow-cytometry using the followed probes: propidium-iodide and annexin-V. Statistical analysis: variance analysis, post-hoc comparisons by Turkey-test (p
Databáze: OpenAIRE