Spermatozoa Expression of piR-31704, piR-39888, and piR-40349 and Their Correlation to Sperm Concentration and Fertilization Rate After ICSI:
2018
Objective:To investigate the relationship between spermatozoa PIWI-interacting RNAs (piRNAs) levels and semen parameters and to evaluate the role of expression of piRNAs on fertilization and embryo development after intracytoplasmic sperm injection (ICSI) treatment.Methods:One hundred and eighty-six patients with idiopathic male infertility who had undergone first ICSI cycles were enrolled in our study. The levels of piRNAs in spermatozoa were measured by real-time polymerase chain reaction. Semen parameters, including sperm concentration, motility, and morphology, were evaluated. The rates of fertilization, early cleavage, and day 3 good-quality embryo were calculated to assess embryo development potential.Result:Spermatozoa levels of piR-31704 and piR-39888 were decreased in male factor infertility group as compared with control group (for piR-31704, P = .027 and for piR-39888, P = .041, respectively). And these 2 piRNAs were expressed at higher levels in patients with normal sperm concentration compare...
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