Yashushi Yamaguchi, William G. M. Hardison – 1 July 1991 – During a recent study using isolated perfused rat liver, we concluded that the effects of vasopressin on biliary excretion of several anionic and cationic cholephilic probes could best be explained by passive diffusion of these probes through a paracellular pathway with permeability increased by vasopressin.
Antonio Francavilla, Thomas E. Starzl, Michele Barone, Qi‐Hua Zeng, Kendrick A. Porter, Adrianni Zeevi, Peter M. Markus, Marcell R. M. van den Brink, Satoru Todo – 1 July 1991 – Evidence could not be found of immune modulation of liver regeneration. The powerful immunosuppressive drug FK 506, which augments the response after partial hepatectomy in normal rats, had the same effect in T cell—deficient nude rats. The cytotoxicity of natural killer cells in treated nude rats was not significantly changed by FK 506 therapy.
Yolanta T. Kruszynska, Philip D. Home, Neil McIntyre – 1 July 1991 – Hepatic insulin extraction is difficult to measure in humans; as a result, the interrelationship between defective insulin secretion and insulin insensitivity in the pathogenesis of glucose intolerance in cirrhosis remains unclear. To reassess this we used recombinant human C‐peptide to measure C‐peptide clearance in cirrhotic patients and controls and thus derive C‐peptide and insulin secretion rates after a 75‐gm oral glucose load and during a 10 mmol/L hyperglycemic clamp.
Juan Antonio Quiroga, María Luz Campillo, Inmaculada Catillo, Javier Bartolomé, Juan Carlos Porres, Vicente Carreño – 1 July 1991 – To assess possible role of testing for IgM‐specific antibody in the diagnosis and monitoring of patients with hepatitis C, we tested sera from 14 patients with acute and 97 patients with chronic non‐A, non‐B hepatitis for IgG and IgM antibody to hepatitis C virus. IgG antibody to hepatitis C virus was detected in 93% of acute cases and 91% of chronic cases. Of the 101 patients with IgG antibody to hepatitis C virus, 57% had IgM antibody to hepatitis C virus.
1 July 1991
James M. Crawford, John L. Gollan – 1 July 1991
Jose J. G. Marin, Pilar Bravo, Fernando Perez Barriocanal, Mohamad Y. El‐Mir, Gloria R. Villanueva – 1 July 1991 – In a previous report we showed that cholestasis in diabetic rats is due in part to hyperglycemia. To gain information about the mechanism responsible for this phenomenon, bile flow was studied in isolated perfused rat livers. The perfusion media were modified erythrocyte‐free Krebs‐Henseleit solutions.
Joanne C. Wilton, Delyth E. Williams, Alastair J. Strain, Rosemary A. Parslow, J. Kevin Chipman, Roger Coleman – 1 July 1991 – An initial preparation of rat hepatocytes containing approximately 30% couplets was enriched by centrifugal elutriation. Of the couplets loaded onto the elutriator, 87% were eluted at medium flow rates of 60 to 80 ml/min at a rotor speed of 1,100 rpm; cells eluted in this range maintained a viability of more than 95%. Peak fractions were enriched in couplets to 84.5% ± 2.5%.
Johnson Y. N. Lau, Nick Sheron, Kayhan T. Nouri‐Aria, Graeme J. M. Alexander, Roger Williams – 1 July 1991 – Production of the antiviral cytokine, tumor necrosis factor‐α is increased in chronic hepatitis B virus infection, and clinical studies of tumor necrosis factor‐α have indicated a proviral effect at higher doses.