Jeremic, Ana (57225983983)Ana (57225983983)JeremicMikovic, Zeljko (7801694296)Zeljko (7801694296)MikovicSoldatovic, Ivan (35389846900)Ivan (35389846900)SoldatovicSudar-Milovanovic, Emina (23570110000)Emina (23570110000)Sudar-MilovanovicIsenovic, Esma R. (14040488600)Esma R. (14040488600)IsenovicPerovic, Milan (36543025300)Milan (36543025300)Perovic2025-06-122025-06-122021https://doi.org/10.5114/aoms/141185https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115977857&doi=10.5114%2faoms%2f141185&partnerID=40&md5=1d04ec18ed43844344e8e31e11a5aac1https://remedy.med.bg.ac.rs/handle/123456789/4374Introduction: Follicular and serum vitamin D are considered potential markers of the oocyte and embryos' quality and predictors of in vitro fertilization (IVF) outcomes. Methods: This retrospective cross-sectional study correlated vitamin D in sera and follicular fluid of women with unexplained infertility mutually and with IVF outcomes. ELISA was used for measuring vitamin D. Results: The results show positive correlation only between follicular and serum levels of vitamin D (Rho = 0.615, p = 0.025), and between follicular levels of vitamin D and the percentage of embryo fragmentation (Rho = 0.544; p = 0.036). Conclusions: The results suggest that serum and follicular fluid vitamin D measurements could be complementary tools to the routine assessment of embryos. © 2021 Termedia & Banach.ART outcomeFollicular fluidVitamin D