title: No beneficial effect of ATP-MgCl2 on impaired transmembrane potential and protein synthesis in liver ischemia.
abstract: Hepatic cell membrane potential (HCMP) and protein synthesis were studied in rats during and after a period (60 min) of liver ischemia. ATP-MgCl2 (5 mumol . 100 g bw-1) or saline was administered slowly intravenously before or after the period of liver ischemia. No beneficial effect of ATP-MgCl2 on the impaired HCMP or protein synthesis was observed. On the contrary, the post-ischemic restitution of these cellular metabolic variables was slower in animals receiving ATP-MgCl2 after the period of liver ischemia as compared with saline-treated rats. At the end of the ischemic period, ATP, glucose and lactate in liver tissue were the same in animals receiving ATP-MgCl2 or saline before ischemia. These results suggest that the beneficial effects previously reported after administration of ATP-MgCl2 in conditions with reduced hepatic blood flow are not primarily due to an improved metabolic situation in the liver.
mesh_terms: D000255:Adenosine Triphosphate / Q000627:therapeutic use*; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D007511:Ischemia / Q000378:metabolism*; D008099:Liver / Q000098:blood supply* / Q000378:metabolism; D008274:Magnesium / Q000627:therapeutic use*; D015636:Magnesium Chloride; D008297:Male; D008564:Membrane Potentials / Q000187:drug effects; D014176:Protein Biosynthesis; D051381:Rats; D011919:Rats, Inbred Strains; D014882:Water-Electrolyte Balance / Q000187:drug effects
chemical_list: D015636:Magnesium Chloride; D000255:Adenosine Triphosphate; D008274:Magnesium