Use of Beef Ultralente for Basal Insulin Delivery: Plasma Insulin Concentrations After Chronic Ultralente Administration in Patients with IDDM

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Abstract
Ultralente has been used as the basal component of intensive insulin therapy programs. To determine the degree to which a single daily subcutaneous injection of beef ultralente provides stable basal insulin concentrations, plasma free insulin concentrations were measured in six insulin-dependent diabetic patients over a 40-h period. All short-acting insulin was withheld during this interval. Each patient had been maintained on a chronic ultralente based program before study. Little if any evidence of a temporal peak in plasma insulin concentrations was observed. Although considerable variation in plasma insulin concentrations was observed in one individual, beef ultralente provided relatively stable plasma insulin concentrations in the group as a whole. Beef ultralente appears to be a reasonable insulin preparation to use as the basal component in an intensive insulin therapy program.

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