Evaluation of insulin sensitivity and secretion in primary aldosteronism.
In primary aldosteronism (PA), insulin response to glucose is not fully understood. Insulin action was elucidated using indices in 32 PA and 21 essential hypertension (EH) patients. These patients were evaluated using homeostasis model assessment (HOMA) indices, quantitative insulin sensitivity check index (QUICKI), and insulinogenic index (IGI), which were expressed for insulin sensitivity/secretion and the early phase of insulin secretion. Insulin sensitivity and early phase of insulin secretion were decreased in PA, and there was a negative correlation between serum potassium concentration and insulin sensitivity indices. These findings suggest that glucose intolerance in PA may be caused by hypokalemia-induced insulin resistance and hypokalemia-independent impairment of early-phase insulin secretion.
a Department of Endocrinology and Hypertension , Tokyo Women's Medical University , Tokyo , Japan.
Daisuke
D
Watanabe
a Department of Endocrinology and Hypertension , Tokyo Women's Medical University , Tokyo , Japan.
Midori
M
Yatabe
a Department of Endocrinology and Hypertension , Tokyo Women's Medical University , Tokyo , Japan.
Atsuhiro
A
Ichihara
D000368:Aged; D000075222:Essential Hypertension; D005260:Female; D005947:Glucose / Q000378:metabolism*; D018149:Glucose Intolerance / Q000209:etiology / Q000378:metabolism; D005951:Glucose Tolerance Test / Q000379:methods; D006801:Humans; D006929:Hyperaldosteronism / Q000378:metabolism*; D006973:Hypertension / Q000378:metabolism*; D007008:Hypokalemia / Q000150:complications / Q000378:metabolism; D007328:Insulin / Q000378:metabolism; D007333:Insulin Resistance; D000078790:Insulin Secretion; D008297:Male; D008875:Middle Aged; D011188:Potassium / Q000097:blood; D013223:Statistics as Topic
D007328:Insulin; D005947:Glucose; D011188:Potassium
Insulin action; primary aldosteronism; serum potassium