Opsonins in the hepatic clearance of pneumococci

B. A. Runyon – 1 January 1987 – An in situ isolated, perfused rat liver system was used to evaluate various opsonins for hepatic trapping and killing of encapsulated, virulent, type 3 pneumococci. Pneumococci were rapidly trapped in the liver in the presence of all potential opsonins including Hanks balanced salt solution with added colloid. However, with some of the potential opsonins the organisms remained viable and could be recovered from the liver. With others there was killing of pneumococci.

Development of molecular hybridization technology to evaluate albumin and procollagen mrna content in baboons and man

Francis R. Weiner, Mark J. Czaja, Marie‐Adele Giambrone, Catherine H. Wu, George Y. Wu, Mark A. Zern – 1 January 1987 – We have developed the methodology for evaluating the effects of pathophysiological conditions on the molecular mechanisms of hepatic protein synthesis and fibrogenesis in baboons and man. Total RNA was extracted from percutaneous liver biopsies of five baboons who were chronically fed an ethanol‐rich liquid diet, their pair‐fed controls and from humans with a variety of liver abnormalities.

The effect of changes in the fluid state of rat liver plasma membrane on the transport of taurocholate

Peter R. Mills, Peter J. Meier, Daniel J. Smith, Nazzareno Ballatori, James L. Boyer, Ellen R. Gordon – 1 January 1987 – The fluidity of basolateral and canalicular rat liver plasma membranes was compared with respect to their response to the membrane perturbants ethanol and calcium. The relation between membrane fluidity and taurocholate transport, a liver plasma membrane function mediated by carrier proteins, was also examined. Membrane fluidity was measured by fluorescence polarization using 1,6‐diphenyl‐1,3,5‐hexatriene as a probe.

Decreased uptake of taurocholate and ouabain by hepatocytes isolated from cirrhotic rat liver

Jürg Reichen, Catherine Hoilien, Mysan Le, Richard H. Jones – 1 January 1987 – To differentiate between the “intact” and “sick” cell hypothesis explaining decreased clearance of endo‐ and xenobiotics, we measured uptake of taurocholate and ouabain in hepatocytes isolated from cirrhotic rat liver. Cirrhosis was induced by chronic exposure of male Sprague‐Dawley rats to phenobarbital and carbon tetrachloride. Uptake of [14C]taurocholate and [3H]ouabain was measured by a rapid filtration technique.

Selective hepatobiliary transport defect for organic anions and neutral steroids in mutant rats with hereditary‐conjugated hyperbilirubinemia

Peter L. M. Jansen, Geny M. M. Groothuis, Wilbert H. M. Peters, Dirk F. M. Meijer – 1 January 1987 – Mutant rats (TM rats) with abnormal hepatic excretory function were used to study biliary transport of dibromosulfophthalein, ouabain, tributylmethyl ammonium, cholate and taurocholate. In whole animals, dibromosulfophthalein and ouabain clearance is reduced to 7 and 37% of normal, respectively, due to severely impaired excretion from liver to bile. Initial uptake rates of these agents are relatively little affected.

Subscribe to