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Objective: To investigate the changes of proton transportation across the inner mitochondrial membrane (IMM) and H+-ATPase of hepatocytes in endotoxic shock rat
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Objective: To investigate the changes of proton transportation across the inner mitochondrial membrane (IMM) and H+-ATPase of hepatocytes in endotoxic shock rats.Methods: Endotoxin from E.Coil of 5.0 mg/kg or saline of 1 ml/kg was injected into the femoral vein.The rats were sacrificed pre-injection and 1, 3, 5, 8 hours after injection, and plasma and liver tissue samples were collected respectively.The liver tissue samples were used for preparation of mitochondria and submitochondrial particles (SMPs).The proton-translocation of SMPs and H+-ATPase, phospholipase A2 (PLA2) activities and malondialdehyde (MDA) content, membrane fluidities of different level of mitochondria membrane and plasma MDA content were assayed.Results: (1) Five hours after E.Coli.O111B4 injection, the maximum fluorescence quenching ACMA after adding ATP, nicotinamide adenin dinucleoacid hydrogen (NADH), and the succinate were significantly decreased (P
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