Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis.

Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis. Research Abstract Details 

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Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis. Abstract Text:

Tomomi Matsuyama,Masahito Uemura,Masatoshi Ishikawa,Masanori Matsumoto,Hiromichi Ishizashi,Seiji Kato,Chie Morioka,Masao Fujimoto,Hideyuki Kojima,Hitoshi Yoshiji,Chikara Takimura,Yoshihiro Fujimura,Hiroshi Fukui,Tomomi Matsuyama,Masahito Uemura,Masatoshi Ishikawa,Masanori Matsumoto,Hiromichi Ishizashi,Seiji Kato,Chie Morioka,Masao Fujimoto,Hideyuki Kojima,Hitoshi Yoshiji,Chikara Takimura,Yoshihiro Fujimura,Hiroshi Fukui,

Background: Severe alcoholic hepatitis (SAH) in addition to alcoholic hepatitis (AH) is a life-threatening complication of alcohol abuse, and its pathogenesis remains unclear. The deficiency of ADAMTS13 results in an increase of the plasma unusually large von Willebrand factor multimer (UL-VWFM) and finally causes microcirculatory disturbance and multiorgan failure. We investigated the relationship of ADAMTS13 and von Willebrand factor antigen (VWF:Ag) with the clinical features of AH and SAH. Methods: The plasma levels of ADAMTS13 activity, VWF:Ag, and UL-VWFM were determined in 24 patients with AH, 5 with SAH, and 10 with alcoholic liver cirrhosis (LC). Results: The ADAMTS13 activity was significantly lower in SAH (mean 24%), AH (62%), and LC (76%) than in the healthy subjects (102%, n=62). The VWF:Ag levels were higher in SAH (806%), AH (405%), and LC (514%) than in the healthy subjects (100%), resulting in a higher ratio of VWF:Ag to ADAMTS13 activity in SAH (102.2), AH (8.9), and LC (8.6) compared with the healthy subjects (1.0). In 3 nonsurvivors with SAH and multiorgan failure, the protease activity markedly decreased (from 4.5 to 16%), and VWF:Ag remarkably increased (from 560 to 1,202%), resulting in an extremely high ratio of VWF:Ag to the activity (from 35.0 to 240.4). At the recovery stage in the survivors with SAH and AH, the protease activity increased and the VWF:Ag decreased, whereas in a nonsurvivor with SAH, the activity remained extremely low and the VWF:Ag was still high. Unusually large von Willebrand factor multimer was detected in 80.0% of SAH and 55.6% of AH. Multivariate analysis showed that the serum albumin and platelet count independently correlated with VWF:Ag. Conclusion: The enhanced production of UL-VWFM over deficient activity of ADAMTS13 may, in part, contribute to not only the progression of liver injury but also the development of multiorgan failure through microcirculatory disturbance in SAH in addition to AH. The imbalance between the plasma ADAMTS13 activity and VWF:Ag could be a useful prognostic marker in AH.

Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis. Publishing Authors By Initials

T Matsuyama,M Uemura,M Ishikawa,M Matsumoto,H Ishizashi,S Kato,C Morioka,M Fujimoto,H Kojima,H Yoshiji,C Takimura,Y Fujimura,H Fukui,T Matsuyama,M Uemura,M Ishikawa,M Matsumoto,H Ishizashi,S Kato,C Morioka,M Fujimoto,H Kojima,H Yoshiji,C Takimura,Y Fujimura,H Fukui,

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Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Alcoholism, clinical and experimental research

VOLUME: 31

Page Numbers: S27-35

Journal Abbreviation: Alcohol. Clin. Exp. Res.

ISSN: 0145-6008

DAY: 2

MONTH: Jan

YEAR: 2007

Increased von Willebrand Factor Over Decreased ADAMTS13 Activity May Contribute to the Development of Liver Disturbance and Multiorgan Failure in Patients With Alcoholic Hepatitis. Information

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LANGUAGE: eng

NlmUniqueID: 7707242

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AFFILIATION: Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan.

Country: England

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MEDLINETA: Alcohol Clin Exp Res

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