Previous Nutritional State and Glucose Modulate Glucagon-Mediated Hepatic Lipolysis in Rainbow Trout, Oncorhynchus mykiss(Physiology)

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概要

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• Rainbow trout were used to investigate the effects of previous nutritional state and glucose presence on glucagon-stimulated hepatic lipolysis. Experiments were conducted in vitro on liver removed from fed fish and from fish fasted for 4 or 6 weeks. Basal hepatic lipolysis was enhanced in liver removed from fasted fish compared to fed animals. Glucagon-stimulated lipolysis was more pronounced in liver removed from 4-week fasted fish than in liver isolated from fed fish. Glucagon failed to affect hepatic lipolysis in the liver of 6-week fasted animals. The effects of glucose presence and absence were also examined. Basal lipolysis in liver tissue incubated in the presence of glucose was more pronounced than rates observed in tissue cultured in the absence of glucose. Glucagon stimulated lipolysis in liver incubated in the presence of glucose to a greater extent than liver incubated in the absence of glucose. Insulin inhibited glucagon-stimulated lipolysis in liver from fed and fasted fish as well as in liver cultured in the presence and absence of glucose. These results indicate that glucagon-mediated lipolysis is modulated by previous nutritional state and by glucose.

• 社団法人日本動物学会の論文
• 1992-04-15

著者

• Sheridan Mark

  Department of Zoology and Regulatory Bioscience Center, North Dakota State University

• Harmon Jamie

  Department Of Zoology North Dakota State University

• Harmon James

  Department Of Surgery University Of Minnesota

• SHERIDA MARK

  Department of Zoology, North Dakota State University

• Sherida Mark

  Department Of Zoology North Dakota State University

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• Glucose-stimulated Somatostatin Gene Expression in the Brockmann Bodies of Rainbow Trout (Oncorhynchus mykiss) Results from Increased mRNA Transcription and not from Altered mRNA Stability(SHORT COMMUNICATON,Endocrinology)
• Intraductal Papillary Mucinous Tumor of the Native Pancreas in a Pancreas-Kidney Transplant Recipient
• Previous Nutritional State and Glucose Modulate Glucagon-Mediated Hepatic Lipolysis in Rainbow Trout, Oncorhynchus mykiss(Physiology)

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