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  • Title: Restoration of fuel homeostasis in IDDM patients during pregnancy by an open-loop insulin infusion system.
    Author: Foss MC, Aoki TT.
    Journal: Diabetes Care; 1993 Jan; 16(1):103-9. PubMed ID: 8422762.
    Abstract:
    OBJECTIVE: To characterize the effects of subcutaneous insulin pump therapy on the metabolic response (CHO and lipid oxidation, and nonoxidative glucose metabolism) to a glucose challenge of diabetic women at early pregnancy. RESEARCH DESIGN AND METHODS: Seven nondiabetic and seven IDDM pregnant patients on insulin pump therapy were studied at the first trimester. Fuel oxidation rates were determined by indirect calorimetry, and blood levels of substrates and hormones were measured before and for 2 h after ingestion of a 50 g oral glucose load. RESULTS: The increments in npRQ and CHO oxidation rates after the glucose meals in the diabetic women on insulin pump therapy were similar to those in the normal subjects. The glucose disposal data during the 2 h of the studies revealed that the amounts of oxidative and nonoxidative glucose utilization in the control subjects and in the IDDM patients on insulin pump therapy did not show significant differences. CONCLUSIONS: This investigation demonstrated that the treatment of IDDM patients during early pregnancy by an open-loop insulin infusion system is sufficient to normalize their glucose-processing capability with respect to cellular oxidative and nonoxidative glucose metabolism in response to an oral glucose challenge, but some abnormalities in their blood profiles of glucose, lactate, and pyruvate persisted.
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