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Journal of Clinical Endocrinology & Metabolism, Vol 42, 173-176, Copyright © 1976 by Endocrine Society

ARTICLES

Heterogeneity of plasma glucagon: patterns in patients with chronic renal failure and diabetes

SF Kuku, A Zeidler, DS Emmanouel, AI Katz and AH Rubenstein

Immunoreactive plasma glucagon (IRG) in normal subjects and patients with chronic renal failure, diabetic ketoacidosis and diagetic hyperosmolar syndrome circulates in several forms. In the diabetic patients most IRG eluted coincidentally with the extracted, purified pancreatic hormone (MW3500), while in normal subjects a high molecular weight component predominated. In striking contrast, the major component of plasma IRG in patients with chronic renal failure was of intermediate size (MW +/- 9000), consistent with proglucagon. The accumulation of this form of IRG suggests that the kidney plays an important role in its metabolism. If there are differences in the biological activity of the various circulating components of IRG, the significance of immunoreactive glucagon levels in some disease states will require reassessment.


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A. Lawrence, S Tan, S Hojvat, and L Kirsteins
Salivary gland hyperglycemic factor: an extrapancreatic source of glucagon-like material
Science, January 7, 1977; 195(4273): 70 - 72.
[Abstract] [PDF]


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