39 research outputs found
Kinetic evidence for calcium-ion and phosphate-ion transport systems in mitochondria from ehrlich ascites tumour cells
Inhibition by calcium of adenine nucleotide translocation in mitochondria isolated from ehrlich ascites tumour cells
Digitalitzat per Artypla
Inability of tributyltin-induced chloride/hydroxyl exchange to stimulate calcium transport in mitochondria isolated from flight muscle of the sheep blowfly Lucilia cuprina
Inhibition by local anaesthetics of adenine nucleotide translocation in rat liver mitochondria
Maturation in liver mitochondria of Ruthenium Red-sensitive calcium-ion-transport activity and the influence of glucagon administration in vivo and in utero
The subcellular location, maturation and response to increased plasma glucagon of Ruthenium Red-insensitive calcium-ion transport in rat liver
Rapid Ca2+ influx induced by the action of dibutylhydroquinone and glucagon in the perfused rat liver
Sub-mitochondrial location of Ruthenium Red-sensitive calcium-ion transport and evidence for its enrichment in a specific population of rat liver mitochondria
Light induced calcium binding to mangrove PS II particles
AbstractA combination calcium selective and oxygen electrode system was used to measure the Ca2+ and O2 concentrations of a solution surrounding mangrove PS II particles. Concomitant uptake of Ca2+ and oxygen evolution in the light were observed. The Ca2+ bound during the light was released in a subsequent dark period. The Ca2+ binding was dependent on both chlorophyll and Ca2+ concentrations. Up to 3000 Ca2+ were calculated to be bound per reaction centre
Effect of depolarizing concentrations of potassium on calcium uptake and metabolism in rat liver
AbstractExposure of perfused livers of fed rats to 60 mM K+ induces rapid responses in the Ca2+-sensitive metabolic events, glycogenolysis, cytoplasmic and mitochondrial NADH/NAD ratios and octanoate oxidation. All increase within 45 s of K+ addition. Metabolic responses were not observed following K+ addition to livers perfused in the absence of added Ca2+. Movements of Ca2+ into the liver were suggested from experiments in which 45Ca2+ uptake was measured. The Ca2+ antagonists verapamil, diltiazem and Ni2+ essentially abolished changes to tissue metabolism and Ca2+ fluxes induced by K+ addition. K+-induced changes were consistent with Ca2+ channel activiation.LiverPotassium depolarizationGlycogenolysisCalcium antagonis