Linoleic acid stimulates gluconeogenesis via Ca /PLC, cPLA2, and PPAR pathways through GPR40 in primary cultured chicken hepatocytes

نویسندگان

  • Han Na Suh
  • Huang Thi Huong
  • Chang Hun Song
  • Jang Hern Lee
  • Ho Jae Han
چکیده

Han Na Suh, Huang Thi Huong, Chang Hun Song, Jang Hern Lee, and Ho Jae Han Department of Veterinary Physiology, Biotherapy Human Resources Center (BK21), College of Veterinary Medicine, Chonnam National University, Gwangju, Korea; Department of Obstetrics and Gynecology, Chosun University Medical School, Gwangju, Korea; and Department of Veterinary Physiology, College of Veterinary Medicine, Seoul National University, Seoul, Korea

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Linoleic acid stimulates gluconeogenesis via Ca2+/PLC, cPLA2, and PPAR pathways through GPR40 in primary cultured chicken hepatocytes.

Fatty acids serve vital functions as sources of energy, building materials for cellular structures, and modulators of physiological responses. Therefore, this study examined the effect of linoleic acid on glucose production and its related signal pathways in primary cultured chicken hepatocytes. Linoleic acid (double-unsaturated, long chain) increased glucose production in a dose (> or =10(-4) ...

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PPAR-γ Activation Increases Insulin Secretion through the Up-regulation of the Free Fatty Acid Receptor GPR40 in Pancreatic β-Cells

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Oleic acid interacts with GPR40 to induce Ca2+ signaling in rat islet beta-cells: mediation by PLC and L-type Ca2+ channel and link to insulin release.

It has long been thought that long-chain free fatty acids (FFAs) stimulate insulin secretion via mechanisms involving their metabolism in pancreatic beta-cells. Recently, it was reported that FFAs function as endogenous ligands for GPR40, a G protein-coupled receptor, to amplify glucose-stimulated insulin secretion in an insulinoma cell line and rat islets. However, signal transduction mechanis...

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Metabolic regulation of fatty acid esterification and effects of conjugated linoleic acid on glucose homeostasis in pig hepatocytes.

Conjugated linoleic acids (CLAs) are geometric and positional isomers of linoleic acid (LA) that promote growth, alter glucose metabolism and decrease body fat in growing animals, although the mechanisms are poorly understood. A study was conducted to elucidate the effects of CLA on glucose metabolism, triglyceride (TG) synthesis and IGF-1 synthesis in primary culture of porcine hepatocytes. In...

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Oleic acid interacts with GPR40 to induce Ca signaling in rat islet -cells: mediation by PLC and L-type Ca channel and link to insulin release

Fujiwara, Ken, Fumihiko Maekawa, and Toshihiko Yada. Oleic acid interacts with GPR40 to induce Ca signaling in rat islet -cells: mediation by PLC and L-type Ca channel and link to insulin release. Am J Physiol Endocrinol Metab 289: E670–E677, 2005. First published May 24, 2005; doi:10.1152/ajpendo.00035.2005.—It has long been thought that long-chain free fatty acids (FFAs) stimulate insulin sec...

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تاریخ انتشار 2008