Level of Vitamin E in Follicular Fluid and Serum and Oocyte Morphology and Embryo Quality in Patients Undergoing IVF Treatment
AbstractObjective: This study aimed to determine the relationship between vitamin E in the follicular fluid (FF) and serum with oocyte morphology and embryo quality.Materials and methods: A cross-sectional study was conducted on serum samples, FF samples, oocytes, and embryos collected from 50 women undergoing in vitro fertilization in the Alzahra Hospital, Rasht, Iran from March to August 2014. Vitamin E level was measured using HPLC. Oocyte morphology and embryo quality were evaluated during inverted optical microscopy.Results: Totally 434 oocytes and 199 embryos were examined. Most frequently the metaphase II (MII) oocytes were observed at the 0.35-1 mg/dl level of vitamin E in FF (89.2%) and the 1-5 mg/dl level of vitamin E in serum (86.1%). The odds of having MII oocytes at the level of 0.35-1 mg/dl (OR = 2.48, 95% CI = 1.24-4.94) and 1.5-2 mg/dl (OR = 2.51, 95% CI = 1.02-6.19) of vitamin E in FF was significantly higher compared to level of 2-7.4 mg/dl. The effect of vitamin E serum level on oocyte maturation was not significant. The odds of having embryo with Z1 or Z2 quality, at the 10-15 mg/dl level of vitamin E in serum (OR = 6.45, 95% CI = 1.18-35.22), compared to the 15-20 mg/dl level, was significantly higher. The effect of vitamin E levels in FF on the embryo quality was not significant.Conclusion: At certain levels of vitamin E in the FF, oocytes with higher maturation and at certain levels of vitamin E in serum, embryo with higher quality can be achieved.
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