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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Platelet function rather than plasmatic coagulation explains hypercoagulable state in cholestatic liver disease.

BACKGROUND/AIMS: As compared to other chronic liver diseases, cholestatic disorders are associated with a better outcome of variceal bleeding and less blood loss at transplantation, suggesting the presence of a hypercoagulable state. We have assessed plasmatic coagulation and platelet function in patients with cholestatic and non-cholestatic liver disease. METHODS: Thirty-seven patients with chronic cholestatic liver disease (primary biliary cirrhosis (PBC)/primary sclerosing cholangitis (PSC)), 53 patients with chronic hepatitis C (HCV) or alcoholic cirrhosis (C2), and 62 healthy controls were studied. RESULTS: Thrombelastography revealed a hypercoagulable state in non-cirrhotic patients with PBC/PSC, but not in those with HCV (ma-value: 6.54[6.25-6.92, 95%CI] vs. 5.39[5.11-5.58], P < 0.05) possibly due to higher fibrinogen levels in PBC/PSC patients (369[329-418]mg/dl vs. 263[250-275]mg/dl, P < 0.05). PFA-100 closure time was prolonged in HCV/C2 patients with advanced cirrhosis, but not in cirrhotic patients with PBC/PSC (Child B; epinephrine stimulation: 192[161-229]s vs. 132[105-158]s, P < 0.05). Flow cytometric studies of platelet receptors and granules revealed a higher surface expression of CD42b (112[105-119]% vs. 100[95-104]%, P < 0.05) and LIBS-1 (261[184-348]% vs. 121[92-145]%, P < 0.05) in patients with PBC/PSC than in those with HCV/C2. CONCLUSIONS: These results indicate that platelet function differs between patients with cholestatic and non-cholestatic liver disease and is stable or even hyperactive in patients with PBC and PSC.[1]


  1. Platelet function rather than plasmatic coagulation explains hypercoagulable state in cholestatic liver disease. Pihusch, R., Rank, A., Göhring, P., Pihusch, M., Hiller, E., Beuers, U. J. Hepatol. (2002) [Pubmed]
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