Summary
Kinetics of insulin secretion following an i.v. glucose infusion, according to the protocol described by Cerasi and Luft, were studied in 19 patients with angiographically documented atherosclerotic peripheral vascular disease and in a group of appropriate controls without clinical signs of disease. No significant differences were noted between patients and controls in plasma cholesterol levels and in the K value following a standard i.v. glucose tolerance test. Blood glucose levels were significantly lower in the patients, whereas mean plasma insulin and triglyceride levels were significantly higher. Analysis of the glucose and insulin responses to the glucose infusion test indicated that 31.6% of the patients had a delayed and sluggish insulin response to the glucose load, fitting the criteria suggested for the diagnosis of prediabetes, versus 10% of the appropriate controls. In particular, simulation of the plasma insulin responses by a square-wave glucose stimulus, confirmed that in a significantly higher number of patients the early insulin peak was below normal limits. The results of this study suggest that increased insulin secretion is not present in patients with atherosclerotic vascular disease, in contrast to reports by other authors, and that inefficient insulin secretory mechanisms may be observed in these patients, thus possibly contributing to the development of the atherosclerotic disease.
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Sirtori, C.R., Meciani, L., Biasi, G. et al. Kinetics of insulin secretion following glucose infusion in patients with atherosclerotic peripheral vascular disease. Acta diabet. lat 16, 175–188 (1979). https://doi.org/10.1007/BF02581097
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DOI: https://doi.org/10.1007/BF02581097