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Related Experiment Videos

Hyperinsulinemic hypoglycemia: effect of epinephrine suppression.

P C Kansal, B R Boshell, J Buse

    Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Metabolisme
    |November 1, 1977
    PubMed
    Summary

    Epinephrine effectively inhibits insulin release in most hyperinsulinemic hypoglycemia cases, except for beta-cell carcinoma. This response difference aids in diagnosing the cause of excess insulin before surgery.

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    Diabetologia·2012

    Area of Science:

    • Endocrinology
    • Metabolic Disorders
    • Surgical Diagnosis

    Background:

    • Hyperinsulinemic hypoglycemia is characterized by excessive insulin secretion.
    • Distinguishing between benign (adenoma, hyperplasia) and malignant (carcinoma) causes is crucial for treatment.

    Purpose of the Study:

    • To investigate the differential effect of epinephrine on insulin release in patients with hyperinsulinemic hypoglycemia.
    • To evaluate epinephrine's potential as a preoperative diagnostic screening tool for the underlying cause of hyperinsulinemia.

    Main Methods:

    • Studied the inhibitory effect of epinephrine on basal and tolbutamide-stimulated insulin release.
    • Evaluated responses in 5 patients with hyperinsulinemic hypoglycemia, including those with beta-cell adenoma, hyperplasia, and carcinoma.

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    Main Results:

    • Epinephrine inhibited both basal and tolbutamide-induced insulin release in patients with beta-cell adenoma and hyperplasia.
    • Epinephrine failed to inhibit insulin release in the patient with beta-cell carcinoma.
    • The maximal inhibition of basal insulin by epinephrine was observed in patients with beta-cell hyperplasia.

    Conclusions:

    • Epinephrine exhibits a differential inhibitory effect on insulin release based on the nature of the beta-cell lesion.
    • This differential response suggests epinephrine can be a valuable preoperative screening test for diagnosing the cause of hyperinsulinemia.