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Published on: April 20, 2017
Tissue expression and secretion of amylin
1Amylin Pharmaceuticals, Inc., San Diego, California, USA.
Advances in Pharmacology (San Diego, Calif.)
|February 24, 2006
Summary
Diabetes mellitus is linked to deficiencies in both insulin and amylin secretion, which are co-stored in pancreatic beta-cells. This study explores the relationship between these hormone deficiencies and their implications in diabetes progression.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Molecular Biology
Background:
- Amylin and insulin are co-localized in pancreatic beta-cell secretory granules.
- Hyperglycemia may alter the synthesis and secretion ratio of amylin to insulin.
- Amylin deficiency is observed in both type 1 and type 2 diabetes mellitus.
Purpose of the Study:
- To investigate the co-secretion and deficiency patterns of amylin and insulin in diabetes.
- To understand the correlation between amylin deficiency and diabetes severity.
- To review the physiological roles and clearance mechanisms of amylin.
Main Methods:
- Review of existing literature on amylin and insulin co-localization and secretion.
- Analysis of clinical observations linking diabetes progression to amylin and insulin deficiencies.
- Examination of pharmacokinetic data for amylin and its analog, pramlintide.
Main Results:
- Amylin and insulin secretion are concordantly deficient in advanced diabetes mellitus.
- The severity of amylin deficiency correlates with the severity of insulin deficiency.
- Amylin is primarily cleared by renal proteolytic degradation, with a short half-life.
Conclusions:
- The co-localization of amylin and insulin in pancreatic beta-cells explains their concordant deficiency in diabetes.
- Amylin plays a significant role in glucose homeostasis and its deficiency contributes to diabetes pathophysiology.
- Understanding amylin's role may offer new therapeutic targets for diabetes management.
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