Two distinct subtypes of hepatitis C virus defined by antibodies directed to the putative core protein

Atsuhiko Machida, Hitoshi Ohnuma, Fumio Tsuda, Eisuke Munekata, Takeshi Tanaka, Yoshihiro Akahane, Hiroaki Okamoto, Shunji Mishiro – 1 October 1992 – Four distinct genotypes of hepatitis C virus types I, II, III and IV have been identified by comparison of nucleotide sequences of isolates from different areas of the world. We examined the possibility that hepatitis C virus may have serologically definable subtypes. Enzyme‐linked immunosorbent assay systems were prepared by use of two synthetic peptides deduced from the putative core protein of hepatitis C virus.

Metabolic clearance rate of arginine vasopressin in patients with cirrhosi

José A. Solis‐Herruzo, Amelia Gonzalez‐Gamarra, Gregorio Castellano, Maria Teresa Muñoz‐yagüe – 1 October 1992 – Metabolic clearance rate and half‐time of arginine vasopressin were measured in 43 cirrhotic patients and 10 control subjects. Synthetic arginine vasopressin was infused intravenously at a rate of 500 pg/min/kg of body weight for 75 min.

31P magnetic resonance spectroscopy detects a functional abnormality in liver metabolism after acetaminophen poisoning

Ruth M. Dixon, Peter W. Angus, Bheeshma Rajagopalan, George K. Radda – 1 October 1992 – Eighteen patients with acetaminophen poisoning were studied with 31P magnetic resonance spectroscopy to measure phosphorus‐containing metabolites in their livers. The concentrations of all magnetic resonance—detectable metabolites fell in parallel with a decrease in the synthetic ability of the liver, indicated by the prothrombin time ratio (international normalized ratio).

Ethanol‐induced vasoconstriction causes focal hepatocellular injury in the isolated perfused rat liver

Masahide Oshita, Nobuhiro Sato, Harumasa Yoshihara, Yoshiyuki Takei, Taizo Hijioka, Hiroyuki Fukui, Moritaka Goto, Takashi Matsunaga, Toru Kashiwagi, Sunao Kawano, Hideyuki Fusamoto, Takenobu Kamada – 1 October 1992 – The role of microcirculation in the pathogenesis of alcoholic liver injury was investigated in isolated perfused livers from fed rats. Infusion of ethanol into the portal vein at concentrations ranging from 25 to 200 mmol/L increased portal pressure, which is an indicator of hepatic vasoconstriction, in a concentration‐dependent fashion.

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