The effect of cimetidine on hepatic drug elimination in cirrhosis

Donald C. Nelson, George R. Avant, K. Vincent Speeg, Anastacio M. Hoyumpa, Steven Schenker – 1 March 1985 – Both cimetidine therapy and cirrhosis individually interfere with normal elimination of various drugs. Cimetidine is often prescribed in patients with cirrhosis but there is incomplete data on its effect on drug elimination in cirrhotics. The purpose of this study was to address this issue. Eight stable cirrhotics were studied prior to and following 7 days of cimetidine administration, (300 mg orally q.i.d.).

Decreased serum group‐specific component protein levels and complexes with actin in fulminant hepatic necrosis

William M. Lee, David L. Emerson, Phillip A. M. Werner, Philippe Arnaud, Pascal Goldschmidt‐Clermont, Robert M. Galbraith – 1 March 1985 – Monomeric G‐actin has recently been shown to form high‐affinity complexes with group‐specific component protein (Gc), and this process might be expected to occur in vivo when hepatocyte necrosis with release of actin takes place. We therefore measured serum Gc levels and searched for evidence of actin‐containing complexes of Gc in 147 sera from 21 normal subjects and 126 patients with acute and chronic liver diseases.

Pharmacokinetic‐hemodynamic interactions between vasopressin and nitroglycerin: Comparison between intravenous and cutaneous routes of nitrate delivery

Andres T. Blei, Steve Friedman, Jeanne Gottstein, Gary Robertson, Ho‐Leung Fung – 1 March 1985 – Addition of nitroglycerin (NTG) improves the hemodynamic response to vasopressin and may thus be useful in the treatment of gastrointestinal hemorrhage. We studied in the rat the influence of vasopressin on the disposition of a constant intravenous infusion of NTG and the cutaneous absorption of NTG ointment. The effect of NTG on the pharmacokinetics of vasopressin was also defermined. Animals were divided into four groups: control, NTG, vasopressin and vasopressin + NTG.

Temporal relationship between hyperaldosteronism, sodium retention and ascites formation in rats with experimental cirrhosis

Wladimiro Jiménez, Antonio Martinez‐Pardo, Vicente Arroyo, Jordi Bruix, Antoni Rimola, Joan Gaya, Francisca Rivera, Joan Rodés – 1 March 1985 – To investigate the role of aldosterone in sodium retention and ascites in cirrhosis, the urinary sodium excretion, sodium balance and urinary excretion of aldosterone‐18‐glucuronide (UAidV) were serially measured in 11 rats undergoing cirrhosis induction with carbon tetrachloride (CT) and phenobarbital (CT rats) and in 10 control rats which received phenobarbital.

Respective roles of hypoxia and halothane metabolism in halothane‐induced liver injury in rats

Hitoshi Hatano, Fumio Nomura, Kunihiko Ohnishi, Toshihiko Iijima, Akira Hayasaka, Shinji Iida, Hirofumi Koen, Kunio Okuda – 1 March 1985 – To evaluate the respective roles of halothane metabolism and hypoxia in rats with halothane hepatotoxicity, experiments were designed with special reference to blood gas. After pretreatment with phenobarbital (80 mg per kg., i.p.) for four consecutive days, rats were exposed to 1.0% halothane under a mildly hypoxic condition (FiO2 = 14%) for 2 hr.

The effects of colchicine and vinblastine on the biliary excretion of carcinoembryonic antigen

Peter Thomas, Paul F. O'Neil, Norman Zamcheck – 1 March 1985 – The biliary output of carcinoembryonic antigen (CEA) in bile fistula rats following treatment with the microtubule poisons vinblastine and colchicine increased 3‐fold over a 4‐hr period. Cytochalasin B and the inactive colchicine derivative lumicolchicine had no effect. These treatments did not effect the rate of CEA clearance from the circulation. Biliary output of low molecular weight fragments from CEA degradation was decreased in the presence of colchicine and vinblastine.

Endocytosis and binding of asialoorosomucoid by hepatocytes from rats with jejunoileal bypass

Nathalie Serbource‐Goguel/Seta, Béatrice Borel, Michèle Dodeur, Pierre Scarmato, Benoit Bourel, Jeanne Feger, Geneviève Durand – 1 March 1985 – Rats with Jejunoileal bypass were used to study the biological activity of the hepatic binding protein. Hepatocytes were prepared 11 weeks after surgical procedure, and presence of asialoo‐rosomucoid in serum has been determined.

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