Viral pathogenesis of hepatocellular carcinoma in the United States

T. Jake Liang, Lennox J. Jeffers, K. Rajender Reddy, Maria De Medina, I. Talley Parker, Hugo Cheinquer, Victor Idrovo, Alfredo Rabassa, Eugene R. Schiff – 1 December 1993 – Chronic hepatitis B virus infection is closely associated with the development of hepatocellular carcinoma, which is a major cause of cancer death worldwide. Recent studies have implicated hepatitis C virus infection as a major pathogenic agent of HBsAg‐negative hepatocellular carcinoma.

Production of chemotactic factor, interleukin‐8, from hepatocytes exposed to ethanol

Yasushi Shiratori, Hiroshi Takada, Yohko Hikiba, Ryo Nakata, Ken'Ichi Okano, Yutaka Komatsu, Yasuro Niwa, Masayuki Matsumura, Shuichiro Shiina, Masao Omata, Kazuo Kamii – 1 December 1993 – In a previous paper, we demonstrated proteinous chemotactic factors released from hepatocytes exposed to ethanol. In this study, we further characterized the chemotactic factors released from ethanoltreated hepatocytes. After fractionating the conditioned medium with gel chromatography, we demonstrated chemotactic activity at molecular weights of around 20 and 40 kD.

Differential impact of carolina rinse and university of wisconsin solutions on microcirculation, leukocyte adhesion, kupffer cell activity and biliary excretion after liver transplantation

Stefan Post, Pablo Palma, Markus Rentsch, Alberto P. Gonzalez, Michael D. Menger – 1 December 1993 – This quantitative in vivo fluorescence microscopy study investigated the relative impact of an optimized rinse solution (warm Carolina rinse) and that of an established storage solution (University of Wisconsin solution) on various pathomechanisms of hepatic reperfusion injury after cold storage. Syngeneic orthotopic, arterialized liver transplantation was performed in male Lewis rats after 24 hr of cold ischemia (n = 24).

Increased dietary fat content accelerates cholesterol gallstone formation in the cholesterol‐fed prairie dog

Wayne W. Lamorte, Daniel P. O'Leary, Michael L. Booker, Thayer E. Scott – 1 December 1993 – Epidemiological studies have provided conflicting information about the relationship between fat consumption and gallstone formation. We studied cholesterol gallstone formation in prairie dogs after 1 wk of the following diets: (group A) a control diet with no added cholesterol and 5% of calories from corn oil, (group B) 1.2% cholesterol with 5% of calories from corn oil or (group C) 1.2% cholesterol with 40% of calories from corn oil.

DNA/protein complexes delivered in conjunction with adenovirus generate high‐efficiency in vitro transfection: A powerful transfection reagent with potential broad applications

Fred Askari – 1 December 1993 – We have combined a receptor‐mediated DNA delivery system with the endosomal lysis ability of adenovirus and shown that DNA can be delivered into primary hepatocytes, resulting in a high level of gene expression. When asialoorosomucoid conjugated with poly(L‐lysine) was used to deliver the Escherichia coli β‐galactosidase gene into primary hepatocytes through binding with the hepatic asialoglycoprotein receptor, only a low level of β‐galactosidase was detectable, with less than 0.1% of the hepatocytes being transfected.

Effects of nitric oxide and cyclooxygenase inhibition on splanchnic hemodynamics in portal hypertension

Yuping Wu, R. Cartland Burns, James V. Sitzmann – 1 December 1993 – Portal hypertension is associated with splanchnic hyperemia and increased plasma levels of prostacyclin. Recently, nitric oxide was proposed as a mediator of this arterial vasodilatation. We hypothesized that portal hypertension alters the relative contribution of prostacyclin and nitric oxide to splanchnic vasomotor control.

Rapid sequence variation of the hypervariable region of hepatitis C virus during the course of chronic infection

Masayuki Kurosaki, Nobuyuki Enomoto, Fumiaki Marumo, Chifumi Sato – 1 December 1993 – To evaluate the clinical significance of sequence variations in the hypervariable region of hepatitis C virus during the course of chronic infection, we performed pairwise comparison of the predominant nucleotide sequences. Hepatitis C virus RNA was extracted from two plasma samples obtained from 12 chronically infected Japanese patients over approximately 1 yr.

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