Problem: We evaluated associations between brain-derived neurotrophic factor (BDNF) and neurotrophin-4 (NT4) and pregnancy outcome in women undergoing in vitro fertilization-embryo transfer (IVF-ET). Method of study: Sera obtained on days 24 and 28 of an IVF cycle from women with a live birth, spontaneous abortion, biochemical pregnancy, not pregnant, or an ectopic pregnancy were retrospectively analyzed for BDNF and NT4 by ELISA. Results: Median BDNF levels were higher in women with a live birth compared to women with an ectopic pregnancy (P < 0.0001), spontaneous abortion (P < 0.0001), or a biochemical pregnancy (P = 0.0004), but not in women who did not become pregnant. NT4 was detected in <25% of sera and did not differ by outcome. There was no association between BDNF level and oocyte or pre-transfer embryo parameters. Conclusion: Decreased circulating BDNF early in an IVF cycle is associated with adverse peri- and/or post-implantation events and subsequent pregnancy failure. Copyright
CITATION STYLE
Ramer, I., Kruczek, A., Doulaveris, G., Orfanelli, T., Shulman, B., Witkin, S. S., & Spandorfer, S. D. (2016). Reduced Circulating Concentration of Brain-derived Neurotrophic Factor is Associated with Peri- and Post-implantation Failure following In Vitro Fertilization-Embryo Transfer. American Journal of Reproductive Immunology, 75(1), 36–41. https://doi.org/10.1111/aji.12430
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