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  • Title: Serum and follicular fluid fetuin-B levels are correlated with fertilization rates in conventional IVF cycles.
    Author: Fang L, Hu X, Cui L, Lv P, Ma X, Ye Y.
    Journal: J Assist Reprod Genet; 2019 Jun; 36(6):1101-1107. PubMed ID: 31073723.
    Abstract:
    PURPOSE: To investigate the relationship between serum/follicular fluid fetuin-B levels and fertilization outcomes in conventional IVF cycles. METHODS: A prospective cohort study of conventional IVF treatments including 78 cycles with low fertilization rates (two pronuclei [2PN] rate < 30%; LF group) and 104 cycles performed during the same period with 2PN rate > 70% (high fertilization group, HF). To calculate the required sample size, a two-sample t test power analysis was applied to data from our pilot study, using PASS 11.0 software. Fetuin-B was measured using a commercial sandwich enzyme-linked immunosorbent assay. RESULTS: Serum fetuin-B and follicular fluid fetuin-B were positively correlated (r = 0.703, P < 0.001). Compared to the HF group, the LF group had significantly lower levels of fetuin-B, both in serum (5.81 ± 1.53 vs. 7.19 ± 1.42, P < 0.001) and follicular fluid (5.06 ± 1.29 vs. 6.16 ± 1.52, P < 0.001). The serum fetuin-B level from cycles with polypronuclear (PPN) zygotes was significantly lower when compared to cycles without PPN zygotes (6.82 ± 1.65 vs. 6.10 ± 1.43, P = 0.006). However, serum fetuin-B level was not correlated with preimplantation embryo development or clinical pregnancy. CONCLUSION: Serum fetuin-B level is correlated with fertilization rate in conventional IVF and it may be used as a predictive marker of fertilization in IVF treatment.
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