inosine-triphosphate has been researched along with Escherichia-coli-Infections* in 1 studies
1 review(s) available for inosine-triphosphate and Escherichia-coli-Infections
Article | Year |
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Altered Ca2+ homeostasis and functional correlates in hepatocytes and adipocytes in endotoxemia and sepsis.
Decreased cytosolic [Ca2+] and impaired Ca2+ release in response to an IP3 challenge are among perturbations in hepatocyte Ca2+ homeostasis associated with endotoxemia and sepsis. These changes are consistent with the accompanying alterations in appropriate physiologic functions, e.g., activation of glycogen phosphorylase and gluconeogenesis, mediated by [Ca2+]c and defective phosphorylation of relevant enzymes. Attenuation of IP3 binding to the subcellular fractions that are imputed to be targets of IP3 and a decrease in the size of the IP3-sensitive pool of releasable Ca2+ are underlying components of the mechanism of the reduced Ca2+ release upon IP3 stimulation and its metabolic sequelae. ET treatment leads to a significant increase in Ca2+ associated with the cell surface compartment of adipocytes, a reduction in 45Ca2+ uptake by endoplasmic reticulum and higher cytosolic [Ca2+] under basal conditions and upon ACTH stimulation than that observed in cells of control rats. The reduced 45Ca2+ uptake is also manifest in adipocytes of septic rats. Alterations in adipocyte metabolism induced by ET include increased oxidation of glucose to CO2 (an insulin-like effect) and increased lipolysis upon NE and ACTH stimulation. Topics: Adipose Tissue; Animals; Calcium; Escherichia coli Infections; Homeostasis; Inosine Triphosphate; Liver; Phosphorylases; Toxemia | 1990 |