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Absorption kinetics and biologic effects of subcutaneously injected insulin preparations.

Abstract：

:This paper describes systematic studies on the absorption kinetics of exogenous insulin from its subcutaneous tissue depot in 52 male nonobese volunteers (age 20-30 yr). Five experimental protocols were used: effect of changing injection site, effect of temperature change and local massage, effect of aprotinin and human serum, effect of mixing regular insulin with long-acting insulin preparations, and effect of temperature change, muscular exercise, and local massage on the absorption of long-acting insulin preparations. The fastest absorption of insulin occurred at the abdominal injection. Absorption after arm injection was faster than after thigh injection. A hot bath and local massage dramatically increased serum insulin levels in the first 90 min after injection; in contrast, a cold bath delayed absorption substantially. Both aprotinin and the subjects' own blood serum mixed with insulin caused a marked acceleration of the insulin absorption process. Absorption kinetics of two neutral regular insulins (Actrapid and Leo Regular) were virtually identical. Mixing Actrapid with Monotard caused higher serum insulin levels than the mixture of Leo Regular with NPH. A time lag of 5 min between the mixing of Actrapid and Monotard and the injection caused a delayed rise of serum insulin levels; in contrast, this delay could not be observed when Leo Regular and NPH were mixed. Volunteers performed bicycle exercise, applied a hot water bottle to the injection site, or rubbed the injection site 2 1/2 h after injection of long-acting insulin. Accelerated absorption of insulin was only observed after local massage of the injection site of Monotard, Leo NPH, and Mixtard. Local heat had no effect. Exercise caused only an increased absorption of insulin after the Mixtard injection but not after Monotard or NPH injection. These findings have clinical significance and should not be without potential benefit in the attempt to improve metabolic control in insulin-treated diabetic patients.

journal_name

Diabetes Care

journal_title

Diabetes care

authors

Berger M,Cüppers HJ,Hegner H,Jörgens V,Berchtold P

doi

10.2337/diacare.5.2.77

subject

Has Abstract

pub_date

1982-03-01 00:00:00

pages

77-91

issue

eissn

0149-5992

issn

1935-5548

journal_volume

pub_type

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Absorption kinetics and biologic effects of subcutaneously injected insulin preparations.