alexa Markedly blunted metabolic effects of fructose in healthy young female subjects compared with male subjects.
Biochemistry

Biochemistry

Bioenergetics: Open Access

Author(s): Couchepin C, L KA, Bortolotti M, da Encarnaao JA, Oboni JB,

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Abstract OBJECTIVE: To compare the metabolic effects of fructose in healthy male and female subjects. RESEARCH DESIGN AND METHODS: Fasting metabolic profile and hepatic insulin sensitivity were assessed by means of a hyperglycemic clamp in 16 healthy young male and female subjects after a 6-day fructose overfeeding. RESULTS: Fructose overfeeding increased fasting triglyceride concentrations by 71 vs. 16\% in male vs. female subjects, respectively (P < 0.05). Endogenous glucose production was increased by 12\%, alanine aminotransferase concentration was increased by 38\%, and fasting insulin concentrations were increased by 14\% after fructose overfeeding in male subjects (all P < 0.05) but were not significantly altered in female subjects. Fasting plasma free fatty acids and lipid oxidation were inhibited by fructose in male but not in female subjects. CONCLUSIONS: Short-term fructose overfeeding produces hypertriglyceridemia and hepatic insulin resistance in men, but these effects are markedly blunted in healthy young women. This article was published in Diabetes Care and referenced in Bioenergetics: Open Access

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