Abstract
Does resveratrol, a polyphenolic compound, affect IVF-embryo transfer outcomes? This single-centre, cross-sectional retrospective study was designed to compare the outcomes of embryo transfer cycles in women receiving resveratrol supplementation (200 mg/day) continuously (RES group) with a control group (non-RES group). Of 8686 embryo transfer cycles, 1409 cycles with poor prognostic factors were excluded, including cycles in women aged ≥43 years and those with poor-quality embryos. The RES group (204 cycles, 102 women) was compared with the non-RES group (7073 cycles, 2958 women). After matching patients by age at the time of oocyte retrieval, grade and developmental stage of embryos, number of embryos transferred, and fresh or vitrified-warmed embryo transfer, multivariate logistic regression analysis showed that resveratrol supplementation is strongly associated with a decrease in clinical pregnancy rate [odds ratio (OR) 0.539, 95% confidence interval (CI) 0.341-0.853] and an increased risk of miscarriage (OR 2.602, 95% CI 1.070-6.325). Resveratrol supplementation during embryo transfer cycles appears to be detrimental for pregnancy outcomes. An analysis of the supplementation protocol and randomized controlled studies are needed.
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