Publication:

Vitamin D Supplementation in women with Diminished Ovarian Reserve: A Randomized Controlled Trial

Background Diminished ovarian reserve (DOR) predicts decreased ovarian response to stimulation. Low serum anti-Mullerian hormone (AMH) is associated with DOR. AMH is a marker of ovarian reserve and acts as a predictor of ovarian response to ovarian stimulation protocol. The AMH is up regulated by vitamin D via vitamin D response elements that bind the vitamin D receptor. Vitamin D supplementation has a role in increasing serum AMH. The objective was to compare the combined effect of vitamin D and DHEA vs DHEA alone on serum AMH in DOR.

Methods This randomized controlled trial was conducted in the Department of Reproductive Endocrinology and Infertility, Bangabandhu Sheikh Mujib medical University (BSMMU), Dhaka, from March 2021 to February 2022. A total of 44 infertile women with DOR, 20 to 39 years were allocated into two groups, one received vitamin D plus DHEA for 8 weeks and the other received DHEA alone for the same duration. After 8 weeks of treatment, both groups had repeat assessment of AMH, FSH and transvaginal sonography for AFC.

Results There was no significant difference in serum AMH after vitamin D supplementation in women with DOR. But the spontaneous pregnancy during intervention was 2.57 times more in those given vitamin D supplementations in addition to dehydroepiandrosterone (DHEA).

Conclusions Short term vitamin D supplementation adds little to the effect of increasing AMH but favors spontaneous pregnancy in women with DOR.