The Ability of beta-Cells to Compensate for Insulin Resistance is Restored with a Reduction in Excess Growth Hormone in Korean Acromegalic Patients
Journal of Korean Medical Science
;
: 177-183, 2012.
Article
in English
| WPRIM
| ID: wpr-156437
ABSTRACT
The aim of this study was to assess the prevalence of diabetes and to study the effects of excess growth hormone (GH) on insulin sensitivity and beta-cell function in Korean acromegalic patients. One hundred and eighty-four acromegalic patients were analyzed to assess the prevalence of diabetes, and 52 naive acromegalic patients were enrolled in order to analyze insulin sensitivity and insulin secretion. Patients underwent a 75 g oral glucose tolerance test with measurements of GH, glucose, insulin, and C-peptide levels. The insulin sensitivity index and beta-cell function index were calculated and compared according to glucose status. Changes in the insulin sensitivity index and beta-cell function index were evaluated one to two months after surgery. Of the 184 patients, 17.4% were in the normal glucose tolerance (NGT) group, 45.1% were in the pre-diabetic group and 37.5% were in the diabetic group. The insulin sensitivity index (ISI0,120) was significantly higher and the HOMA-IR was lower in the NGT compared to the diabetic group (P = 0.001 and P = 0.037, respectively). The ISI0,120 and disposition index were significantly improved after tumor resection. Our findings suggest that both insulin sensitivity and beta-cell function are improved by tumor resection in acromegalic patients.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prediabetic State
/
Acromegaly
/
Blood Glucose
/
C-Peptide
/
Insulin Resistance
/
Human Growth Hormone
/
Asian People
/
Diabetes Mellitus
/
Insulin-Secreting Cells
/
Republic of Korea
Limits:
Adult
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
English
Journal:
Journal of Korean Medical Science
Year:
2012
Type:
Article
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