1
|
Fang J, Sun H, Chen L, Wang J, Lin F, Xu Z, Zhu L, Wang S. Embryological characteristics and clinical outcomes of oocytes with different degrees of abnormal zona pellucida during assisted reproductive treatment. ZYGOTE 2024; 32:7-13. [PMID: 38018399 DOI: 10.1017/s0967199423000515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Abnormalities in the zona pellucida (ZP) adversely affect oocyte maturation, embryo development and pregnancy outcomes. However, the assessment of severity is challenging. To evaluate the effects of different degrees of ZP abnormalities on embryo development and clinical outcomes, in total, 590 retrieval cycles were scored and divided into four categories (control, mild, moderate and severe) based on three parameters: perivitelline space, percentage of immature oocytes and percentage of oocytes with abnormal morphology. As the severity of abnormal ZP increased, both the number of retrieved oocytes and mature oocytes decreased. The fertilization rate did not differ significantly among groups. The rates of embryo cleavage and day-3 high-quality embryos in the mild group and the moderate group did not vary significantly between the two groups but were significantly higher than those in the severe group. The blastulation rates of the abnormal ZP groups were similar; however, they were lower than those of the control group. Moreover, the cycle cancellation rate of the severe abnormal ZP group was as high as 66.20%, which was significantly higher than that of the other three groups. Although the rates of cumulative clinical pregnancy and live births were lower than those in the control group, they were comparable among the abnormal ZP groups. There were no differences in the neonatal outcomes of the different groups. Together, ZP abnormalities show various degrees of severity, and in all patients regardless of the degree of ZP abnormalities who achieve available embryos, there will be an opportunity to eventually give birth.
Collapse
Affiliation(s)
- Junshun Fang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Hua Sun
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Linjun Chen
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Jie Wang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Fei Lin
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Zhipeng Xu
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Lihua Zhu
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| | - Shanshan Wang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing210008, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing210008, China
| |
Collapse
|
2
|
Li Y, Liang Z, Liang Z, Yang X, Xia H, Yu H. Abnormal PIWI-interacting RNA profile and its association with the deformed extracellular matrix of oocytes from recurrent oocyte maturation arrest patients. Fertil Steril 2021; 115:1318-1326. [PMID: 33622565 DOI: 10.1016/j.fertnstert.2020.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To depict the PIWI-interacting RNA (piRNA) profile in oocytes from patients with recurrent oocyte maturation arrest (ROMA) and explore the piRNA candidates associated with the disease. DESIGN An observational study. SETTING Academic research unit. PATIENT(S) Sixteen ROMA patients who provided 140 immature oocytes that arrested at metaphase I, and 146 control patients who provided 420 oocytes for in vitro culture that were collected at the stages of germinal vesicle (GV), metaphase I (MI), and MII. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Expression profiles of piRNA and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) validating data of piR-hsa-17139 and its target genes. RESULT(S) After the piRNA profile was established using piRNA sequencing and hierarchical clustering, the target genes of the piRNA were predicted by bioinformatics databases and matched with mRNA sequencing data. The piRNA expression profiles showed a greater quantity of differentially expressed piRNAs in the older-stage oocytes compared with the early-stage oocytes. The piRNA and mRNA sequencing data indicated that the most affected genes were mainly concentrated in the extracellular matrix (ECM) pathway. Based on the comparison of the piRNA and mRNA sequencing data, four differentially expressed piRNAs were associated with modulation of those ECM pathway genes. The qRT-PCR validation confirmed that piR-hsa-17139 was the only up-regulated piRNA, and its target ECM genes were suppressed in ROMA oocytes. The expression level of piR-hsa-17139 declined slightly while the expression of its target ECM genes plunged dramatically during the development of normal oocytes. CONCLUSION(S) As the important genome monitors in gametogenesis, abnormally expressed piRNAs may affect the expression of ECM modulating genes, which subsequently contributes to ROMA.
Collapse
Affiliation(s)
- Yi Li
- Center for Reproductive Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.
| | - Zhenjie Liang
- Center for Reproductive Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Zhongkun Liang
- Center for Reproductive Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xi Yang
- Center for Reproductive Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Huayang Xia
- Center for Reproductive Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Hao Yu
- Urological Surgery Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| |
Collapse
|