Histochemical and biochemical studies on the effect of the prostacyclin derivative iloprost on CCI4‐induced lipid peroxidation in rat liver and its significance for hepatoprotection

Wilfried Bursch, Hendryk S. Taper, Marie P. Somer, Stefan Meyer, Barbara Putz, Rolf Schulte‐Hermann – 1 June 1989 – In the present study, it was investigated whether the prostacyclin derivative Iloprost would protect hepatocytes against CCl4‐induced liver injury and which mechanism(s) of hepatocellular pathogenesis might be affected by it. Rats were treated with a single oral dose of CC14 (2 ml per kg); Iloprost was infused continuously from 2 to 4 hr before intoxication until killing. The following results were obtained.

Protective effect of vasodilators on liver function after long hypothermic preservation: A study in the isolated perfused rat liver

Olivier Chazouillères, François Ballet, Yves Chrétien, Philippe Marteau, Colette Rey, Dominique Maillard, Raoul Poupon – 1 June 1989 – The effects of two vasodilators, papaverine and pentoxifylline (a methylxanthine derivative), on liver function after 19 hr hypothermic preservation were investigated. Hypothermic preservation was performed according to the standard technique, and liver hemodynamics and function were studied during 70 min immediately after reperfusion in an isolated perfused rat liver system. No significant changes occurred after hypothermic storage for 5 hr.

Pharmacokinetics of tin‐mesoporphyrin in man and the effects of tin‐chelated porphyrins on hyperexcretion of heme pathway precursors in patients with acute inducible porphyria

Richard A. Galbraith, Attallah Kappas – 1 June 1989 – Tin‐mesoporphyrin shares many of the properties of its parent compound, tin‐protoporphyrin. These include competitive inhibition of heme oxygenase, amelioration of jaundice and suppression of chemically induced hepatic porphyria. Tin‐mesoporphyrin is cleared from the plasma of normal subjects with dose‐dependent pharmacokinetics (T1/2 = 3.8 hr following i.v. administration of 1 μmole per kg body weight), and small amounts (<1% of administered dose) are excreted into the urine and feces.

Effect of molecular charge on para‐ and transcellular access of horseradish peroxidase into rat bile

William G. M. Hardison, Philip J. Lowe, Miya Shanahan – 1 June 1989 – The permeability pathway into the biliary tree for small inert molecules exhibits a charge selectivity. Using a method which distinguishes trans‐ from paracellular access, we have examined the charge selectivity of biliary access pathways for the 40‐kD protein horseradish peroxidase (pI 7.5), which was derivatized to strongly anionic (pI < 3.5) and strongly cationic (pI > 9.5) isoenzymes.

Abdominal symptoms and gallstone disease: An epidemiological investigation

Torben Jørgensen – 1 June 1989 – To date, it has never been established which symptoms are specifically caused by stones in the gallbladder. To examine this issue, the relationship between occurrence of gallstone disease diagnosed by ultrasonography and complaints about abdominal pain and discomfort was assessed in a random sample comprising 4,581 males and females, of whom 3,608 (79%) took part in the investigation.

Endotoxin‐induced hypercoagulability: A possible aggravating factor of alcoholic liver disease

Masao Arai, Shigeo Nakano, Fumio Okuno, Yoshiaki Hirano, Kazufumi Sujita, Toshiji Kobayashi, Hiromasa Ishii, Masaharu Tsuchiya – 1 June 1989 – The present experiments were designed to study the effect of chronic ethanol consumption on endotoxin toxicity. The intravenous injection of endotoxin produced a more pronounced increase of serum AST and ALT activities in chronic ethanol‐fed rats, when compared to controls.

Hemodynamic effects of blood volume restitution following a hemorrhage in rats with portal hypertension due to cirrhosis of the liver: Influence of the extent of portal‐systemic shunting

David Kravetz, Jaime Bosch, Maite Arderiu, M. Pilar Pizcueta, Juan Rodés – 1 June 1989 – The present study investigated whether, in rats with portal hypertension due to cirrhosis of the liver induced by carbon tetrachloride, blood volume restitution following a hemorrhage produces an increase of portal pressure beyond control values, as observed in rats with prehepatic portal hypertension.

Protection against the transmission of hepatitis B virus in dental practitioners: Better gloves, earlier vaccination, or both?

Raymond S. Koff – 1 June 1989 – A survey of 434 oral surgeons was conducted to examine risk factors for hepatitis B virus (HBV) infection. Overall, 112 (26%) of the participants demonstrated serologic evidence of past or current infection with HBV. Seropositivity was significantly associated with age, number of years in practice, and year of graduation from dental school but not with other variables examined, such as the number of patients seen annually or the number of patients seen who were at high risk of HBV infection.

Subscribe to