Hepatic I-insulin binding kinetics in non-insulin-dependent (Type 2) diabetic patients after i.v. bolus administration.

Autor: Oolbekkink, M., Heine, R., Hollander, W., Nauta, J., Veen, E.
Zdroj: European Journal of Nuclear Medicine; Jun1989, Vol. 15 Issue 6, p292-295, 4p
Abstrakt: Insulin binding kinetics in the liver were studied in non insulin dependent (Type 2) diabetic patients, by i.v. bolus administration of I-insulin. Eight Type 2 diabetic patients were compared with six male volunteers. Uptake of I-insulin by liver and kidneys was measured by dynamic scintigraphy with a gamma camera during 30 min. Images of liver and kidneys appeared within 2-3 min after administration of I-insulin at a dose of 1 mCi (37 MBq). Peak radioactivity for the liver was found 7.5±0.2 and 6.9±0.3 min after injection for the healthy and the diabetic subjects, respectively (N.S.). The percentage I-insulin hepatic uptake was not significantly different for the diabetic and the healthy subjects. Although a large variation exists for maximal uptake of radioactivity within both groups, the data suggest that binding differences in the liver in Type 2 diabetic patients, as compared to healthy subjects, may not account for hepatic insulin resistance. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index