Background: Frozen-thawed embryo transfer is an essential part of ART treatment and
outcomes of this procedure are associated with several clinical factors. Several studies have …

STUDY QUESTION What is the effect of vitamin D deficiency on the pregnancy rates
following frozen embryo transfer (FET)?. SUMMARY ANSWER Vitamin D deficiency does …

STUDY QUESTION What is the influence of vitamin D deficiency on pregnancy rates among
women undergoing IVF/ICSI and Day 5 (blastocyst stage) single embryo transfer (SET) …

Research question To determine the relationship between vitamin D (VitD) status and
embryological, clinical pregnancy and live birth outcomes in women undergoing IVF. Design …

Background There exist contradictive views on whether the vitamin D has association with
clinical outcome of in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI) …

Background Vitamin D deficiency has been associated with an increased risk of abnormal
pregnancy implantation leading to obstetric complications such as pre-eclampsia and fetal …

To investigate the influence of vitamin D status on in vitro fertilisation (IVF) results, a meta-
analysis of 15 cohort studies of 3711 women undergoing IVF was performed. Women were …

Background: Based on studies on animal models, vitamin D plays an essential role in
reproduction by controlling Ca and Mg levels. Despite these findings, the effects of vitamin D …

Objective To measure free and total 25-hydroxyvitamin D [25 (OH) D] immediately before
embryo transfer and analyze its association with early pregnancy outcome parameters such …

Background Recent studies suggest that vitamin D may play a role in human reproduction.
Our goal was to investigate whether vitamin D levels are predictive of implantation and …