Journal of Reproduction & Infertility

Journal of Reproduction & Infertility

The Effect of hCG Supplementation on Embryo Quality after Rescue In Vitro Maturation (r-IVM)

Authors
Novita Prasetiawati 1
Ayu Sundari 2
Agus Supriyadi 3
Hadi Sjarbaini 3
Sudirmanto Tarigan 3
Gde Suardana 3
Mohammad Haekal 3
Gangsar Pariyanti 3
Deana Indah 3
Mulyoto Pangestu 4
Anom Bowolaks 5
1 Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
2 Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
3 Melati Clinic, Harapan Kita Women and Children Hospital, Jakarta, Indonesia
4 Department of Obstetrics and Gynecology, School of Clinical Sciences, Monash University, Victoria, Australia
5 Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia; Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathe
10.18502/jri.v26i3.20179
Abstract
Background: The supplementation of human chorionic gonadotropin (hCG) into culture medium in rescue in vitro maturation (r-IVM) has been reported to improve the maturation rates of immature oocytes derived from stimulated cycles. However, the impact of this enrichment on embryo quality is yet to be understood. The purpose of the current study was to investigate the effect of hCG on the embryo quality following r-IVM. Methods: A total of 152 immature oocytes consisting of germinal vesicles (GV) and metaphase I (MI) were collected and classified into 1) control group (n=73; GV=22, MI=51) cultured in culture medium only, and 2) experimental group (n=79; GV= 23, MI=56) cultured in culture medium supplemented with 0.5 IU hCG. Study parameters were analyzed using Student’s T-test or Kruskal Wallis and chi-square at a 95% confidence level. Results: After 24 hr, the maturation rate of the control and experimental groups was comparable (57% vs. 70%, p=0.58). Following intracytoplasmic sperm injection (ICSI), the fertilization rate was significantly higher in the experimental group than in the control group (49% vs. 36%; p=0.03). However, the number of good-quality embryos was similar in the groups (16% vs. 6%). Conclusion: Our study suggests that hCG supplementation into the culture medium during r-IVM does not affect embryo quality but improves the fertilization rate. Further research is needed to scrutinize the role of hCG in fertilization.
Keywords
embryo
Human chorionic gonadotropin
Oocytes
Rescue IVM
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Journal of Reproduction & Infertility
Volume 26, Issue 3
Summer 2025
Pages 152-158