title: Glucose tolerance and insulin release, a mathematical approach. II. Approximation of the peripheral insulin resistance after oral glucose loading.
abstract: A parameter of peripheral insulin activity (A = 10(4)/IpGp) can be obtained after oral glucose loading by simple calcuation using insulin and glucose levels at the glucose peak. In combination with a glucose-independent parameter of beta-cell function (CIR = 100. I/G(G-70) a parameter of glucose tolerance (GT = A-CIR) is defined. The parameters allow one to separate the contributions of beta-cell function and peripheral insulin resistance to the glucose tolerance observed after glucose loading. Examples, based on the literature and our own work, illustrate the increase of A and GT by cortisone acetate premedication as well as long-term oral contraceptive medication.
mesh_terms: D001835:Body Weight; D003348:Cortisone / Q000494:pharmacology; D005260:Female; D005947:Glucose / Q000494:pharmacology*; D005951:Glucose Tolerance Test; D006801:Humans; D007328:Insulin / Q000378:metabolism*; D007333:Insulin Resistance; D000078790:Insulin Secretion; D007515:Islets of Langerhans / Q000187:drug effects / Q000502:physiology; D008234:Lynestrenol / Q000494:pharmacology; D008433:Mathematics; D008656:Mestranol / Q000494:pharmacology; D008954:Models, Biological
chemical_list: D007328:Insulin; D008656:Mestranol; D005947:Glucose; D008234:Lynestrenol; D003348:Cortisone