Translations:Resveratrol/29/de

In einer randomisierte Kontrollstudie^[1] aus dem Jahr 2023, an der 48 Erwachsene im Alter von 55 bis 65 Jahren teilnahmen, wurden die Auswirkungen einer Resveratrol-Supplementierung mit einer kalorienreduzierten Diät verglichen. Beide Interventionen erhöhten die zirkulierenden SIRT1-Level und reduzierten Plasma-Noradrenalin, was auf kardiovaskuläre Vorteile hinweist. Die Studie fand jedoch Unterschiede zwischen den Gruppen in Bezug auf vaskuläre Reaktionen. Insbesondere wurden Verbesserungen in der nitrat-vermittelten Vasodilatation (NMD) (engl. nitrate-mediated vasodilation) nur bei kalorischer Restriktion beobachtet, nicht jedoch bei Resveratrol. Zusätzlich wurde SIRT1 mit einer verbesserten flussvermittelten Vasodilatation (FMD) bei Männern, aber nicht bei Frauen, in Verbindung gebracht. Dies deutet darauf hin, dass Resveratrol zwar einige Vorteile der kalorischen Restriktion widerspiegelt, jedoch nicht alle, insbesondere im Hinblick auf vaskuläre Effekte.

↑ Gonçalinho GHF et al.: Sirtuin 1 and Vascular Function in Healthy Women and Men: A Randomized Clinical Trial Comparing the Effects of Energy Restriction and Resveratrol. Nutrients 2023. (PMID 37447275) [PubMed] [DOI] [Full text] Background: Sirtuin 1 (SIRT1) has been associated with longevity and protection against cardiometabolic diseases, but little is known about how it influences human vascular function. Therefore, this study evaluated the effects of SIRT1 activation by resveratrol and energy restriction on vascular reactivity in adults. Methods: A randomized trial allocated 48 healthy adults (24 women and 24 men), aged 55 to 65 years, to resveratrol supplementation or energy restriction for 30 days. Blood lipids, glucose, insulin, C-reactive protein, noradrenaline, SIRT1 (circulating and gene expression), and flow-mediated vasodilation (FMD) and nitrate-mediated vasodilation (NMD) were measured. Results: Both interventions increased circulating SIRT1 (p < 0.001). Pre- and post-tests changes of plasma noradrenaline were significant for both groups (resveratrol: p = 0.037; energy restriction: p = 0.008). Baseline circulating SIRT1 was inversely correlated with noradrenaline (r = -0.508; p < 0.01), and post-treatment circulating SIRT1 was correlated with NMD (r = 0.433; p < 0.01). Circulating SIRT1 was a predictor of FMD in men (p = 0.045), but not in women. SIRT1 was an independent predictor of NMD (p = 0.026) only in the energy restriction group. Conclusions: Energy restriction and resveratrol increased circulating SIRT1 and reduced sympathetic activity similarly in healthy adults. SIRT1 was independently associated with NMD only in the energy restriction group.

[pmid37447275-1] Gonçalinho GHF et al.: Sirtuin 1 and Vascular Function in Healthy Women and Men: A Randomized Clinical Trial Comparing the Effects of Energy Restriction and Resveratrol. Nutrients 2023. (PMID 37447275) [PubMed] [DOI] [Full text] Background: Sirtuin 1 (SIRT1) has been associated with longevity and protection against cardiometabolic diseases, but little is known about how it influences human vascular function. Therefore, this study evaluated the effects of SIRT1 activation by resveratrol and energy restriction on vascular reactivity in adults. Methods: A randomized trial allocated 48 healthy adults (24 women and 24 men), aged 55 to 65 years, to resveratrol supplementation or energy restriction for 30 days. Blood lipids, glucose, insulin, C-reactive protein, noradrenaline, SIRT1 (circulating and gene expression), and flow-mediated vasodilation (FMD) and nitrate-mediated vasodilation (NMD) were measured. Results: Both interventions increased circulating SIRT1 (p < 0.001). Pre- and post-tests changes of plasma noradrenaline were significant for both groups (resveratrol: p = 0.037; energy restriction: p = 0.008). Baseline circulating SIRT1 was inversely correlated with noradrenaline (r = -0.508; p < 0.01), and post-treatment circulating SIRT1 was correlated with NMD (r = 0.433; p < 0.01). Circulating SIRT1 was a predictor of FMD in men (p = 0.045), but not in women. SIRT1 was an independent predictor of NMD (p = 0.026) only in the energy restriction group. Conclusions: Energy restriction and resveratrol increased circulating SIRT1 and reduced sympathetic activity similarly in healthy adults. SIRT1 was independently associated with NMD only in the energy restriction group.

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