MP30-19 HUMAN SPERM IGF2 mRNA LEVELS INVERSELY CORRELATE WITH EMBRYO GROWTH VELOCITY DURING EARLY STAGE OF EMBRYO DEVELOPMENT

You have accessJournal of UrologyCME1 Apr 2023MP30-19 HUMAN SPERM IGF2 mRNA LEVELS INVERSELY CORRELATE WITH EMBRYO GROWTH VELOCITY DURING EARLY STAGE OF EMBRYO DEVELOPMENT Rossella Cannarella, Scott Lundy, Nina Desai, Sarah Vij, and Aldo E. Calogero Rossella CannarellaRossella Cannarella More articles by this author , Scott LundyScott Lundy More articles by this author , Nina DesaiNina Desai More articles by this author , Sarah VijSarah Vij More articles by this author , and Aldo E. CalogeroAldo E. Calogero More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003258.19AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: IGF2 is a potent growth factor capable of influencing cell division and modulating numerous cellular functions. IGF2 mRNA has been identified in human spermatozoa, but little is known about its function in in early embryo development. The aim of this study is to evaluate whether IGF2 levels in spermatozoa is associated with early growth kinetics of human embryos in couples undergoing ICSI. METHODS: This study was conducted on patients undergoing ICSI treatment with fresh oocytes and fresh ejaculated spermatozoa. Couples with infertility due to suspected female factor (e.g., impaired oocyte quality as in patients with severe endometriosis and premature ovarian failure) were excluded from the study. Following clinical use, a surplus aliquot of the semen sample used for ICSI was used to analyze the levels of IGF2 mRNA. The kinetic parameters of each embryo were correlated with the amount of IGF2 mRNA measured in the same swim-up sperm sample used for ICSI. RESULTS: 16 patients were enrolled and a total of 131 embryos were collected. Patients were divided into two groups based on the βhCG test results. We found no statistically significant difference in IGF2 mRNA levels and embryo morphokinetic parameters between the two groups (Table 1). At the correlation analysis, we found a significant negative correlation between sperm IGF2 mRNA levels and the time of pronuclei (tPN) fading (r= -0.2572, p= 0.0078, n=106 embryos), and between sperm IGF2 mRNA and t2 (r= -0.2368, p= 0.0145, n=106 embryos). In contrast, sperm IGF2 mRNA levels were not significantly correlated with tPN, t3, t4, t5, t6, t7, t8, t9, t morula (tM), t blastocyst (tB), and time of expanded blastocyst (tEB) (Table 1). CONCLUSIONS: These results suggest a role for sperm IGF2 mRNA in the very early embryo development (tPN fading -t2). This evidence may help in identify the etiology of apparently idiopathic couple infertility. Indeed, since prolonged t2 has been associated with a poor chance of embryo development into a viable blastocyst, a low level of sperm IGF2 mRNA level can delay t2 and lead to no blastocyst formation. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e398 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Rossella Cannarella More articles by this author Scott Lundy More articles by this author Nina Desai More articles by this author Sarah Vij More articles by this author Aldo E. Calogero More articles by this author Expand All Advertisement PDF downloadLoading ...