Hepatitis C virus: Detection of intracellular virus particles by electron microscop

Y K Shimizu, S M Feinstone, M Kohara, R H Purcell, H Yoshikura – 1 February 1996 – We previously demonstrated that a human T‐cell line, HPBMa10‐2 derived from HPBALL, was capable of supporting a productive infection of hepatitis C virus (HCV). We subsequently found Daudi cells, a human B‐cell line, to be susceptible to HCV infection. Employing these cell lines infected with HCV as well as liver obtained during the acute phase of hepatitis C from a chimpanzee, we observed intracellular HCV particles by electron microscopy (EM).

A novel chimeric fibroblast growth factor for liver parenchymal cells

T Imamura, T Tanahashi – 1 February 1996 – Although fibroblast growth factor 1 (FGF‐1) (formerly known as acidic FGF) but not FGF‐2 (or basic FGF), has been suggested to play a pathophysiological role in liver regeneration, its clinical application has been restricted by its limited mitogenecity and heparin dependence. We report here that a chimeric human FGF protein, FGF‐C(1211), is a heparin‐independent potent mitogen for liver parenchymal cells both in vitro and in vivo.

Response of renal nerve activity to high NaCl food intake in dogs with chronic bile duct ligation

T Matsuda, H Morita, H Hosomi, M Okada – 1 February 1996 – Hepatic sensory systems are thought to play an important role in the response of renal nerve activity and natriuresis to oral NaCl load. In this study, responses of renal nerve activity and urinary Na+ and Cl− excretions to a high‐NaCl food intake (20 g/kg boiled rice containing 0.4 g/kg NaCl) were examined in sham‐operated dogs (n = 12) and dogs with chronic bile duct ligation (CBDL; n = 10).

Effect of phalloidin on cholestasis, hemodynamics, and microcirculation in isolated perfused rat liver

C Barriault, J Petit, M Gascon‐Barre, P Huet, I M Yousef, B Tuchweber – 1 February 1996 – In this study, the possible role of the hepatic microcirculation in phalloidin‐induced cholestasis and hepatotoxicity was examined in isolated perfused rat livers (IPRL). Administration of a phalloidin bolus (1 mg/kg body weight) through the portal vein induced an immediate reduction of bile flow. In 16.9 minutes, bile flow was 50% lower than basal values.

Isolated polycystic liver disease as a distinct genetic disease, unlinked to polycystic kidney disease 1 and polycystic kidney disease 2

Y Pirson, N Lannoy, D Peters, A Geubel, J Gigot, M Breuning, C Verellen‐Dumoulin – 1 February 1996 – Polycystic liver disease (PLD) is proven to occur either sporadically or in association with autosomal dominant polycystic kidney disease (ADPKD), whereas the existence of an isolated (i.e., without any kidney cyst) familial form is disputed. We describe a family with definitely isolated PLD transmitted through three generations and exclude the linkage of the disease to the genetic markers of PKD1 and PKD2, the two main loci responsible for ADPKD.

Adenosine does not mediate renal sodium retention and peripheral vasodilation elicited by partial portal vein ligation in rats

S Murakami, J F Bernardo, R A Branch, R Sabra – 1 February 1996 – This study was conducted to assess the role of adenosine in the peripheral vasodilation and sodium retention that occurs after partial portal vein ligation (PVL) in the rat. The experiment was performed on day 1 after surgery when transient maximal sodium retention developed and day 7 when rats returned to sodium balance. Hemodynamic studies were conducted under anesthesia in portal hypertensive rats with sodium retention and in sham‐operated controls.

A collagen enhancer‐promoter construct in transgenic mice is markedly stimulated by ethanol administration

C M Walton, G Y Wu, C A Petruff, S H Clark, A C Lichtler, C H Wu – 1 February 1996 – Type I collagen synthesis and deposition is generally indicative of irreversible damage in alcohol‐induced cirrhosis in humans. However, in rodents, ethanol alone does not readily cause hepatic fibrosis. To determine whether this is because of a lack of ethanol‐responsive elements, an artificial enhancer construct controlling rat type I collagen gene transcription was prepared in transgenic mice.

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