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  • Title: Effects of prolonged Acipimox treatment on glucose and lipid metabolism and on in vivo insulin sensitivity in patients with non-insulin dependent diabetes mellitus.
    Author: Vaag AA, Beck-Nielsen H.
    Journal: Acta Endocrinol (Copenh); 1992 Oct; 127(4):344-50. PubMed ID: 1449046.
    Abstract:
    The effect of prolonged treatment with Acipimox on in vivo peripheral insulin sensitivity, and on glucose and lipid metabolism, was investigated in patients with NIDDM in a double-blind study. Twelve NIDDM patients were randomized to treatment with either placebo or Acipimox in pharmacological doses (250 mg x 3) for three months. Fasting plasma glucose, insulin, C-peptide and HbA1c concentrations were unaffected after three months of acipimox treatment. However, fasting plasma non-esterified fatty acid (NEFA) concentrations were twofold elevated after Acipimox treatment (1.34 +/- 0.09 vs 0.66 +/- 0.09 mmol/l; p < 0.05). Despite this, repeated acute Acipimox administration after the three months' treatment period enhanced total insulin-stimulated glucose disposal to the same extent as acute Acipimox administration before the treatment period (367 +/- 59 vs 392 +/- 66 mg.m-2.min-1, NS; both p < 0.05 vs placebo glucose disposal) (267 +/- 44 mg.m-2.min-1). In conclusion, insulin resistance or tachyphylaxis towards the effects of Acipimox on insulin stimulated glucose disposal was not induced during prolonged Acipimox treatment. The lack of improvement of blood glucose control in the patients with NIDDM may be due to the demonstrated rebound effect of lipolysis.
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