ISSN:
1432-0428
Keywords:
Type 2 (non-insulin-dependent) diabetes mellitus
;
skeletal muscle
;
glucose transporters
;
insulin regulatable glucose transporters
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary A prominent feature of Type 2 (non-insulin-dependent) diabetes mellitus is the inability of insulin to appropiately increase the transport of glucose into target tissue. In adipocytes from individuals with Type 2 diabetes, insulin resistance has been shown to be associated with a depletion of glucose transporters. Similarly, streptozotocin induced diabetes causes a diminished expression of the insulin regulatable glucose transporter in rat adipocytes. The expression of this glucose transporter isoform has not yet been investigated in muscle tissue from patients with Type 2 diabetes. We have measured the content of the insulin regulatable glucose transporter in a vesicular fraction isolated from muscle biopsies from fasting individuals with Type 2 diabetes and control subjects, and we found that the number of the insulin regulatable glucose transporters expressed in skeletal muscle was unaffected by Type 2 diabetes (0.208 vs 0.205, arbitrary units, p〉0.5, control subjects and diabetic patients). Thus, the decreased glucose disposal in Type 2 diabetes is not associated with a diminished number of insulin regulatable glucose transporters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00400207
