The Level of Vitamin D in Follicular Fluid and Ovarian Reserve in an in Vitro Fertilization Program: A Pilot Study
Overview
Authors
Affiliations
Background: The level of vitamin D in follicular fluid (FF) according to the ovarian reserve has never been investigated, and the effect of FF vitamin D on the outcome of assisted reproductive technology (ART) remains controversial. The aim of this study is to evaluate the association between FF vitamin D levels and baseline anti-Müllerian hormone (AMH) / ART outcomes.
Methods: Forty-seven patients who underwent controlled ovarian stimulation at the fertility clinic of an academic tertiary care center were enrolled for a prospective observational study. FF was collected from the first aspirated leading follicle of each ovary and assayed by an enzyme-linked immunosorbent assay. Multivariable linear regression analysis was used to assess the association between baseline AMH and FF vitamin D levels with adjustment for basal FSH and serum vitamin D levels.
Results: Both the AMH and serum vitamin D were significant predictors for FF vitamin D. The estimated marginal mean of FF vitamin D level was higher in women with decreased ovarian reserve (DOR) than those with normal ovarian reserve (24.1 ± 2.1 vs. 18.8 ± 1.4 ng/ml, = 0.048). However, FF vitamin D did not demonstrate any significant associations with cycle outcomes, including fertilization rate and the number and proportion of good embryos at day three.
Conclusion: We observed significantly higher FF vitamin D levels in women with DOR. However, FF vitamin D did not demonstrate any significant associations with the outcome of ART. A larger prospective study is needed to investigate the effect of FF vitamin D on the clinical pregnancy rate and live birth rate.
Gharagozloo M, Jahanian Sadatmahalleh S, Kalhor M, Ghaffari F, Hasani F, Jahangiri N Sci Rep. 2023; 13(1):12083.
PMID: 37495647 PMC: 10372054. DOI: 10.1038/s41598-023-39341-w.
Relevance of Vitamin D and Its Deficiency for the Ovarian Follicle and the Oocyte: An Update.
Grzeczka A, Graczyk S, Skowronska A, Skowronski M, Kordowitzki P Nutrients. 2022; 14(18).
PMID: 36145088 PMC: 9502977. DOI: 10.3390/nu14183712.