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Lu Y, Tian T, Chen L, Yan L, Chang L, Qiao J. Impacts of male chromosomal polymorphisms on semen quality and IVF/ICSI outcomes: A retrospective cohort study. Int J Gynaecol Obstet 2024; 166:1247-1262. [PMID: 38576264 DOI: 10.1002/ijgo.15487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/18/2024] [Accepted: 03/10/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVE The study aims to elucidate the impacts of different types of male chromosomal polymorphisms (MCPs) on various outcomes of in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) treatment. METHODS This retrospective cohort study included 1442 couples with normal karyotypes, 1442 couples with MCPs, 42 couples with male chromosomal rearrangements (MCRs), and 42 couples with MCRs combined with MCPs who underwent IVF/ICSI treatment at Peking University Third Hospital from 2015 to 2021. The semen quality, embryological outcomes, and clinical outcomes of different groups stratified by karyotypes were compared. RESULTS For couples undergoing IVF, male inv(9) was associated with a significantly lower sperm viability rate (29.41% vs 34.49%, P = 0.030), a lower progressive motility rate (25.13% vs 30.50%, P = 0.013), and a lower normal fertilization rate (52.41% vs 59.84%, P = 0.014). Male 9qh + was related to a lower sperm viability rate (27.56% vs 34.49%, P = 0.028). No MCPs were observed to compromise clinical outcomes in couples undergoing IVF. For couples undergoing ICSI, no MCPs exhibited an association with poorer semen quality and embryological outcomes. However, Yqh + and DGpstk+ were found to be significantly correlated with an increased likelihood of preterm birth (23.3% vs 9.2%, P = 0.003; 20.0% vs 9.2%, P = 0.041, respectively). In couples with MCRs, the presence of MCPs significantly reduced the sperm viability rate (19.99% vs 30.97%, P = 0.017) and progressive motility rate (8.07% vs 27.85%, P = 0.018). CONCLUSION Our study provides detailed evidence for the impacts of various MCPs on IVF/ICSI outcomes, reveals the complexity and heterogeneity of these impacts, and highlights the adverse effects of male inv(9).
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Affiliation(s)
- Yongjie Lu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Tian Tian
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Lixue Chen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Liying Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Liang Chang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
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Li JP, Zhang FB, Li LJ, Chen WK, Wu JG, Tian YH, Liang ZY, Chen C, Jin F. Y chromosome polymorphisms contribute to an increased risk of non-obstructive azoospermia: a retrospective study of 32,055 Chinese men. J Assist Reprod Genet 2024; 41:757-765. [PMID: 38270748 PMCID: PMC10957810 DOI: 10.1007/s10815-024-03022-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/04/2024] [Indexed: 01/26/2024] Open
Abstract
PURPOSE To investigate the prevalence of Y chromosome polymorphisms in Chinese men and analyze their associations with male infertility and female adverse pregnancy outcomes. METHODS The clinical data of 32,055 Chinese men who underwent karyotype analysis from October 2014 to September 2019 were collected. Fisher's exact test, chi-square test, or Kruskal-Wallis test was used to analyze the effects of Y chromosome polymorphism on semen parameters, azoospermia factor (AZF) microdeletions, and female adverse pregnancy outcomes. RESULTS The incidence of Y chromosome polymorphic variants was 1.19% (381/32,055) in Chinese men. The incidence of non-obstructive azoospermia (NOA) was significantly higher in men with the Yqh- variant than that in men with normal karyotype and other Y chromosome polymorphic variants (p < 0.050). The incidence of AZF microdeletions was significantly different among the normal karyotype and different Y chromosome polymorphic variant groups (p < 0.001). The detection rate of AZF microdeletions was 28.92% (24/83) in the Yqh- group and 2.50% (3/120) in the Y ≤ 21 group. The AZFb + c region was the most common AZF microdeletion (78.57%, 22/28), followed by AZFc microdeletion (7.14%,2/28) in NOA patients with Yqh- variants. There was no significant difference in the distribution of female adverse pregnancy outcomes among the normal karyotype and different Y chromosome polymorphic variant groups (p = 0.528). CONCLUSIONS Patients with 46,XYqh- variant have a higher incidence of NOA and AZF microdeletions than patients with normal karyotype and other Y chromosome polymorphic variants. Y chromosome polymorphic variants do not affect female adverse pregnancy outcomes.
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Affiliation(s)
- Jing-Ping Li
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Feng-Bin Zhang
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Le-Jun Li
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Wei-Kang Chen
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Jing-Gen Wu
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Yong-Hong Tian
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Zhong-Yan Liang
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Chong Chen
- Department of Ultrasound, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Fan Jin
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China.
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Liang L, Zhang X, Zhang Z, Xu S, Wu Y, Zhang X, Wu X. Effect of chromosomal polymorphisms on the outcome of in vitro fertilization and embryo transfer. J Obstet Gynaecol Res 2023; 49:2351-2360. [PMID: 37434304 DOI: 10.1111/jog.15732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/17/2023] [Indexed: 07/13/2023]
Abstract
PURPOSE The incidence of chromosomal polymorphisms (CP) is increased in infertile couples, but its impact on reproduction is uncertain, especially undergoing assisted reproductive technology treatment. The purpose of the present study was to investigate the effect of CP on the outcomes of in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) treatment METHODS: A total of 1331 infertile couples undergoing IVF/ICSI treatment were involved in this retrospective case-control study. The participants were divided into 4 groups according to CP variations: (i) normal chromosomes (NC) group; (ii) CP group; (iii) both chromosomal polymorphisms (BCP) group; and (iv) double chromosomal polymorphisms (DCP) group. The CP group was further divided into five subgroups: qh+, D/G, inv(9), Yqh+ and Yqh-. The outcomes of IVF/ICSI-ET treatment were compared among the groups. RESULTS There were no differences observed between the eight groups in terms of number of oocytes retrieved, MII rate, fertilization rate, cleaved embryo rate, and quality embryo rate for both females and males (p > 0.05). In both male and female, some of the CP subgroups experienced more oocyte retrieval operations and more embryo transfer operations to achieve pregnancy than the NC groups (p < 0.05). The rates of live births were significantly lower in some of the CP subgroups compared to the NC group (p < 0.05). CONCLUSION In conclusion, the pregnancy outcomes of ET were affected by CP. It was speculated that this may be associated with the effect of chromosome polymorphism on embryo quality, although this could not be observed or determined by morphological evaluation.
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Affiliation(s)
- Lixia Liang
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Xiuping Zhang
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Zhiping Zhang
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Suming Xu
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Yuanxia Wu
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Xueluo Zhang
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
| | - Xueqing Wu
- Center for Reproductive Medicine, Childrens Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, China
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Ralapanawe MSB, Khattak H, Hapangama HR, Weerakkody GR, Papadopoulou A, Gallos I. Chromosomal polymorphisms in assisted reproduction: a systematic review and meta-analysis. HUM FERTIL 2023; 26:687-698. [PMID: 35322731 DOI: 10.1080/14647273.2022.2051614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/22/2021] [Indexed: 11/04/2022]
Abstract
This systematic review and meta-analysis investigated the effects of chromosomal polymorphisms in reproductive outcomes following IVF or ICSI. Literature in CENTRAL, CINAHL, EMBASE and MEDLINE were searched from 1974 to March 2020 with no language restrictions. Ten published cohort studies were chosen for analysis. Studies included females, males and couples undergoing assisted reproductive treatments with the presence or absence of chromosomal polymorphisms. Reproductive outcomes were reported and their quality assessed using the Newcastle-Ottawa Quality Assessment Scale. Meta-analysis of five cohort studies (9,659 participants) indicated that female carriers with chromosomal polymorphisms had a higher miscarriage rate compared to non-carriers (risk ratio (RR) 1.54 (95% CI 1.19-1.98), whereas no significant association was found for males (RR 0.96, 95% CI 0.64-1.43) and couples (RR 1.93, 95% CI 0.32-11.83) indicating that this effect appeared to be gender-dependent. There was no association between chromosomal polymorphisms and a higher rate of biochemical, clinical, ongoing pregnancy, and preterm and live birth.
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Affiliation(s)
- Madara S B Ralapanawe
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Fertility Centre, Lanka Hospitals Corporation Plc, Sri Lanka
| | - Hajra Khattak
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | | | | | - Argyro Papadopoulou
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Ioannis Gallos
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
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Ralapanawe MSB, Gajaweera SL, Karunaratne N, Dissnayake VHW, Price MJ, Melo P, Coomarasamy A, Gallos ID. A comprehensive analysis of chromosomal polymorphic variants on reproductive outcomes after intracytoplasmic sperm injection treatment. Sci Rep 2023; 13:1319. [PMID: 36693931 PMCID: PMC9873903 DOI: 10.1038/s41598-023-28552-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/19/2023] [Indexed: 01/25/2023] Open
Abstract
Recent studies suggest that chromosomal polymorphic variations are associated with infertility. A systematic review of chromosomal polymorphisms in assisted reproduction found an association with higher rates of miscarriage. Aim of this study is to analyse the influence of specific types or number of chromosomal polymorphic variations on reproductive outcomes of couples undergoing ICSI treatment. We analysed data from 929 fresh and frozen embryo transfer cycles of 692 women who underwent karyotyping analysis using Giemsa-Trypsin-Leishman (GTL) banding prior to the ICSI procedure at the Fertility Centre of Lanka Hospitals Corporation Plc, Sri Lanka, from January 2016 to December 2018. The outcomes of interest were the pregnancy, miscarriage and live birth rate per cycle. There was no evidence of a difference in the reproductive outcomes between carriers or non-carriers of any type or number of chromosomal polymorphic variation. Our data, in contrast to previous studies, does not support a deleterious effect for the type or number of chromosomal polymorphic variations on reproductive outcomes. However, additional prospective, adequately powered studies, conducted in multiethnic populations, are required to further investigate whether the detection of chromosomal polymorphic variants prior to assisted conception may in fact be a futile diagnostic tool.
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Affiliation(s)
- Madara S B Ralapanawe
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, Institute of Translational Medicine (ITM), University of Birmingham, 4th floor, Edgbaston, Birmingham, B15 2TT, UK. .,Fertility Centre, Lanka Hospitals Corporation Plc, 578, Elvitigala Mawatha, Colombo, 00500, Sri Lanka.
| | - Sugandika L Gajaweera
- Fertility Centre, Lanka Hospitals Corporation Plc, 578, Elvitigala Mawatha, Colombo, 00500, Sri Lanka
| | - Nishendra Karunaratne
- Fertility Centre, Lanka Hospitals Corporation Plc, 578, Elvitigala Mawatha, Colombo, 00500, Sri Lanka
| | - Vajira H W Dissnayake
- Department of Anatomy, Genetics and Biomedical Informatics, Faculty of Medicine, University of Colombo, Colombo, 00800, Sri Lanka
| | - Malcolm J Price
- Institute of Applied Health Research, University of Birmingham, Birmingham, B15 2TT, UK.,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, University of Birmingham, Birmingham, B15 2TH, UK
| | - Pedro Melo
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, Institute of Translational Medicine (ITM), University of Birmingham, 4th floor, Edgbaston, Birmingham, B15 2TT, UK
| | - Arri Coomarasamy
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, Institute of Translational Medicine (ITM), University of Birmingham, 4th floor, Edgbaston, Birmingham, B15 2TT, UK
| | - Ioannis D Gallos
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, Institute of Translational Medicine (ITM), University of Birmingham, 4th floor, Edgbaston, Birmingham, B15 2TT, UK
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Chromosomal polymorphisms have no negative effect on reproductive outcomes after IVF/ICSI-ET/FET. Sci Rep 2022; 12:19052. [PMID: 36351959 PMCID: PMC9646876 DOI: 10.1038/s41598-022-20132-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/08/2022] [Indexed: 11/11/2022] Open
Abstract
The present study aimed to explore whether chromosomal polymorphisms (CPs) have negative effects on reproductive outcomes of in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET)/frozen-thawing embryo transfer (FET)? We conducted a retrospective study consisting of 21,867 assisted reproductive technology treatment cycles, among which, fresh embryo transfer cycles accounted for 10,400, and the rest were FET cycles. According to karyotype of CPs, the former was grouped as: group 1 (male carrier, n = 425), group 2 (female carrier, n = 262), and group 3 (couple without CPs, n = 9713). Accordingly, FET cycles were divided into 3 groups: group 4 (male carrier, n = 298), group 5 (female carrier, n = 311), and group 6 (couple without CPs, n = 10,858). The embryo implantation rate (IR), clinical pregnancy rate (CPR), live birth rate (LBR), and early miscarriage rate (EMR) were compared among the groups. In fresh embryo transfer cycles after IVF/ICSI, there were no significant differences in the infertility duration, BMI, basal FSH, no. of oocyte, no. of 2PN, endometrial thickness on trigger day, serum E2, P, and LH level on trigger day (P > 0.05). The female age, no. of 2PN embryo cleavage, top-quality embryo, and no. of embryo transferred were significantly different among groups (P < 0.05). The IR was 38.8%, 36.2%, and 34.0% in groups 1, 2, and 3, respectively. The CPR was 55.1%, 52.3%, and 49.7%, respectively. The LBR was 36.9%, 37.4%, and 36.4%, respectively. The CPR and LBR showed no significant differences among groups. The IR was lower and the EMR was higher in group 3 than those of groups 1 and 2. Binary logistic regression analysis indicated that female age, no. of embryo transferred, EMT, LH, and P on the trigger day were independently factors associated with CPR. Besides, no. of embryo transferred, and EMT on trigger day were associated with LBR, while the CPs was not related with CPR and LBR after IVF/ICSI-ET. In FET cycles, the infertility duration was similar (P > 0.05), but the female age, BMI, no. of embryo transferred were significantly different among groups (P > 0.05). The IR was 24.3%, 23.6% and 22.3% in group 4, 5, and 6, receptivity. The CPR was 31.8%, 30.9%, and 30.0%, the LBR was 23.8%,26.3%, and 23.8%, while the EMR was 12.6%, 13.1%, 14.4%, respectively. The IR, CPR, EMR, and LBR showed no significant differences among groups (P > 0.05). Binary logistic regression analysis indicated that female age, infertility duration, and no. of embryo transferred were independently factors affecting CPR and LBR after FET. The CPs were not associated with CPR and LBR after FET. The results suggested that uniparental carrying of CPs have no effects on the reproductive outcomes after IVF/ICSI-ET/FET. However, it is not clear whether both parents carrying CPs would affect pregnancy outcome.
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Rodriguez F, Cruz M, Requena A. Impact of parental chromosomal polymorphisms on the incidence of congenital anomalies and perinatal complications in a cohort of newborns conceived after ICSI + PGT-A. Reprod Biol Endocrinol 2022; 20:145. [PMID: 36163174 PMCID: PMC9513861 DOI: 10.1186/s12958-022-01012-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 09/10/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND To assess the association between chromosomal polymorphisms (CPM) with congenital anomalies and perinatal complications in a cohort of newborns from couples undergoing intracytoplasmic sperm injection (ICSI), trophectoderm biopsy, and preimplantation genetic testing for aneuploidy (PGT-A). METHODS A retrospective cohort of singletons conceived after ICSI, trophectoderm biopsy, and PGT-A cycles performed at IVIRMA clinics in Spain over 4 years was involved in the study. Newborns were classified according to the parental karyotype analysis: Group I: non-carriers, Group II: CPM carriers. Couples with chromosomal anomalies and instances when both partners were CPM carriers were excluded from the study. The groups were compared for several perinatal complications. RESULTS There was a significant decrease in the number of NB with complications in the carrier group compared to the non-carriers (19.7% vs 31.9%, p = 0.0406). There were no statistical differences among the two groups regarding congenital anomalies, preterm birth, alterations in birth length and weight, cranial perimeter, Apgar test score, or sex ratio (p > 0.05). CONCLUSIONS Chromosomal polymorphisms appear to have no adverse effects on congenital anomalies or perinatal complications on newborns from ICSI + PGT-A cycles.
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Affiliation(s)
- Freddy Rodriguez
- Rey Juan Carlos University, Calle Quintana, 2 - 3ª planta, 28008, Madrid, Spain.
| | - Maria Cruz
- Valencian Infertility Institute, IVIRMA Global, Madrid, Spain
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, Valencia, Spain
| | - Antonio Requena
- Valencian Infertility Institute, IVIRMA Global, Madrid, Spain
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, Valencia, Spain
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The newly non-uniform endometrial echogenicity on transvaginal ultrasound do not impact in vitro fertilization and embryo transfer success: A retrospective cohort study. Eur J Obstet Gynecol Reprod Biol 2022; 274:204-209. [PMID: 35671664 DOI: 10.1016/j.ejogrb.2022.05.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To evaluate the effect of newly non-uniform endometrial echogenicity diagnosed by transvaginal ultrasound on the outcome of pregnancy in vitro fertilization-embryo transfer (IVF-ET) during controlled ovarian hyperstimulation (COH) by retrospective cohort analysis. METHODS A retrospective cohort study of a total of 604 patients with newly non-uniform endometrial echogenicity from January 2013 to June 2017, each woman was matched with three control subjects of similar age (±1 year), type of infertility (primary or secondary), the protocol used for COH, and the number of ET cycles in our unit. The patients in the study group and control group were matched according to the strict 1:3 matching principle. Baseline characteristics and pregnancy outcomes were compared. RESULTS There were no statistically significant difference in baseline characteristics, live birth rate, biochemical pregnancy rate, clinical pregnancy rate, clinical pregnancy miscarriage rate and ectopic pregnancy rate between the two groups. But there were significant statistical differences in past history of uterine cavity surgery between the two groups (35.26% VS 21.19%), especially in history of endometrial polyp surgery (94.84% VS 90.10%). CONCLUSIONS Our results demonstrate the newly diagnosed non-uniform endometrial echogenicity during controlled ovarian hyperstimulation does not affect the pregnancy outcome of in vitro fertilization-embryo transfer, and fresh embryo transfer can be continued.
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Li G, Shi W, Niu W, Xu J, Guo Y, Su Y, Sun Y. The Influence of Chromosomal Polymorphism on Embryo Development and Embryonic Molecular Karyotype in Preimplantation Genetic Testing for Chromosomal Translocation. Front Physiol 2020; 11:543188. [PMID: 33324232 PMCID: PMC7726188 DOI: 10.3389/fphys.2020.543188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/22/2020] [Indexed: 11/21/2022] Open
Abstract
Traditionally, chromosomal polymorphisms (CPMs) are normal genetic variants in individuals with no phenotypic variations. However, some studies have shown that CPM is related to reproductive diseases. We explored the influence of CPM on embryonic development and molecular karyotype in chromosomal translocation (CT) patients undergoing preimplantation genetic testing (PGT) between February 2013 and May 2019. Twenty-six cases with CPM and 56 controls with normal chromosomes were included. Furthermore, a 1:4 match pair analysis by female age included 39 cases with CTCPM and 185 controls with CT. There was no statistical difference in fertilization rate (78.48% vs. 78.33%), cleavage rate on Day 3 (90.32% vs. 89.16%), blastocyst rate (60.00% vs. 60.80%), and the high-quality blastocyst rate (36.31% vs. 35.22%) between CPM and normal chromosomes. The high-quality blastocyst rate of CTCPM was significantly lower than that for CT (26.78% vs. 38.89%). Moreover, there was no statistical difference in fertilization rate (70.65% vs. 70.37%), cleavage rate on Day 3 (88.67% vs. 89.53%), and blastocyst rate (48.48% vs. 53.17%) between CTCPM and CT. In addition, one CTCPM spouse had a lower high-quality blastocyst rate, especially of males with CTCPM. Abnormal embryo rates of CTCPM were significantly higher than those for CT (78.64% vs. 68.93%). Abnormal embryo rates were higher in both CTCPM and CPM paternal carriers with CT partners, respectively. For CT, CTCPM may have an impact on the high-quality blastocyst rate and embryonic molecular karyotype, especially in male patients. Patients with CTCPM are relatively rare, but this population would benefit from being explored using a larger sample size.
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Affiliation(s)
- Gang Li
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weiyi Shi
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenbin Niu
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiawei Xu
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yihong Guo
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingchun Su
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingpu Sun
- Reproductive Medical Center, Henan Province Key Laboratory for Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Chen Z, Yang L, Yi C, Liu J, Sun L. [Chromosomal polymorphisms are associated with blastomere multinucleation in IVF/ICSI cycles]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:73-78. [PMID: 32376550 DOI: 10.12122/j.issn.1673-4254.2020.01.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the association of chromosomal polymorphisms with multinucleated embryos in infertile couples undergoing in vitro fertilization-intracytoplasmic sperm injection (IVF-ICSI). METHODS This retrospective case-control study was conducted among 1145 infertile couples undergoing their first IVF/ICSI cycles. According to their karyotype, the couples were divided into chromosomal polymorphism group and control group, and the former group was divided into 3 subgroups: inversion group, D and G genome polymorphic group and 1, 9, and 16 qh+group. The blastomere multinucleation rate, clinical pregnancy rate and live birth rate were compared between the groups. RESULTS Of the total of 1145 couples, 139 (6.10%) had chromosomal polymorphisms at least in one partner. No significant differences were found in female age, BMI, basal FSH level, total gonadotropin dose, E2 level on day of HCG, number of oocytes retrieved, fertilization rate, top quality embryo rate, clinical pregnancy rate or live birth rate among the groups (P > 0.05). The multinuclear rate of the embryos in couples with pericentric inversion of chromosomes 1, 9, and Y chromosomes and those with D and G genome polymorphisms were 8.23% and 4.65%, respectively, significantly higher than that in the control group (2.69%; P < 0.05); the multinuclear rate of the embryos was 2.77% in 1, 9, and 16 qh+ group, similar with that in the control group (P > 0.05). CONCLUSIONS Infertile couples with pericentric inversion of chromosomes 1, 9, and Y chromosomes and in those with D and G genome polymorphism are at higher risks of blastomere multinucleation in IVF- ICSI cycles; 1, 9, and 16 qh + polymorphisms do not increase the rate of blastomere multinucleation of the embryos.
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Affiliation(s)
- Zhiheng Chen
- Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Li Yang
- Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Cuiqing Yi
- Prenatal Diagnosis Center, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Jun Liu
- Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Ling Sun
- Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
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Li SJ, Cheng YX, Ye-Shang, Zhou DN, Zhang Y, Yin TL, Yang J. Chromosomal polymorphisms associated with reproductive outcomes after IVF-ET. J Assist Reprod Genet 2020; 37:1703-1710. [PMID: 32451813 PMCID: PMC7376992 DOI: 10.1007/s10815-020-01793-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/22/2020] [Indexed: 11/30/2022] Open
Abstract
Purpose This study aimed to investigate the effect of the detail type of chromosomal polymorphisms (1/9/16qh+/−, D/G group polymorphisms, and inv(9)) on the IVF-ET outcomes. Methods A total of 1335 infertile couples undergoing IVF/ICSI were enrolled and comprehensively analyzed the correlation between three detail types of chromosomal polymorphisms (1/9/16qh+/−, D/G group polymorphisms, and inv(9)) and the outcome of IVF/ICSI embryo transfer. The fertilized rate, cleaved embryo rate, good-quality embryo rate, clinical pregnancy rate, implantation rate, and early stage miscarriage rate were compared between the chromosomal polymorphisms groups and the control group. Results Both the inv(9) and D/G group chromosomal polymorphisms related to female infertility significantly lead to a lower 2PN cleavage rate (86.44% vs. 97.58% and 90.67% vs. 97.58%, respectively, P < 0.05) undergoing IVF insemination, the inv(9) adversely increasing the early miscarriage rate, either undergoing IVF (21.4% vs. 3.0%, P < 0.05) or ICSI (50.0% vs. 2.0%, P < 0.05) insemination, female carriers (23.08% vs. 2.87%, P < 0.05) or male carriers (44.44% vs. 2.87%, P < 0.05). For D/G groups, ICSI insemination may increase the implantation rate (44.8% vs. 23.69%, P < 0.05) and clinical pregnancy rate (78.6% vs. 40.65%, P < 0.05). 1/9/16qh+/− had no apparent adverse effect on the patient’s clinical outcomes. Conclusions Our study suggests that chromosome karyotype analysis is necessary for IVF patients in clinical practice; we should afford individual genetic counseling suggestion according to the polymorphism types.
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Affiliation(s)
- Sai-Jiao Li
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Yan-Xiang Cheng
- Gynecology Department, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Ye-Shang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Dan-Ni Zhou
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Yin Zhang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Tai-Lang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China
| | - Jing Yang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China. .,Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, No. 238 JieFang Road, Wuhan, 430060, People's Republic of China.
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12
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Deng K, Zhang M, Kong WY, Liu W, Zhang YN, Yu Q, Wu GH, Yan L. Does a hyperechogenic endometrial mass in the uterus during controlled ovarian stimulation affect assisted reproductive technology cycle outcomes? Eur J Obstet Gynecol Reprod Biol 2020; 250:17-23. [PMID: 32375083 DOI: 10.1016/j.ejogrb.2020.04.041] [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] [Received: 02/03/2020] [Revised: 04/12/2020] [Accepted: 04/15/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Healthy embryos and endometrial receptivity are keys to the success of in-vitro fertilization and embryo transfer (IVF-ET). Abnormal transvaginal ultrasonography (TVU) findings in the endometrium are a concern during assisted reproductive technology (ART) treatments. Observation of a hyperechogenic endometrial mass (HEM) during controlled ovarian stimulation (COS) in an IVF or intracytoplasmic sperm injection (ICSI) cycle is a dilemma. Here we investigated whether an HEM would affect ART cycle outcomes. STUDY DESIGN We analyzed all data from patients who underwent IVF or ICSI treatment cycles from January 1, 2009 to December 31, 2016 at our institution. Patients diagnosed with an HEM were included. Each woman was matched with two control subjects of similar age (± 1 year), in terms of the number of cycles, type of infertility (primary or secondary), protocol used for COS, but with no HEM identified by TVU. Baseline characteristics, COS response, and pregnancy outcomes after ET were compared. RESULTS In all, 1088 patients were diagnosed with an HEM. Of these, 426 met the inclusion criteria and were matched with 852 controls. Baseline characteristics showed no significant differences between the groups. The peak endometrial thickness was significantly greater in the experimental group than in the control group (1.15 ± 0.18 cm vs. 1.08 ± 0.21 cm, p < 0.001). The live birth rates were 43.7% vs 46.2% in the experimental and control groups, respectively. There were no significant between-group differences in the rates of biochemical or clinical pregnancy or abortions at any stage. CONCLUSIONS Newly diagnosed HEMs < 18 mm in diameter monitored by TVU did not impair the outcomes of ART following COS in this study. If other conditions are suitable, completion of ART cycles should be the appropriate approach in such cases. KEY MESSAGE Newly diagnosed hyperechogenic endometrial masses measuring <18 mm in diameter monitored by TVU during COS did not adversely affect the outcomes of these IVF/ICSI-ET cycles.
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Affiliation(s)
- Ke Deng
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China
| | - Mei Zhang
- Maternal and Child Health Hospital of Qufu, Qufu 273100, PR China
| | - Wei-Ya Kong
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China
| | - Wei Liu
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China
| | - Ya-Nan Zhang
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China
| | - Qian Yu
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China
| | - Gui-Hua Wu
- Center of Reproductive Medicine, Shandong Provincial Hospital, Cheloo College of Medicine, Shandong University, Jinan 250021, PR China.
| | - Lei Yan
- Reproductive Hospital Affiliated to Shandong University, Cheloo College of Medicine,Shandong University, Jinan 250012, PR China; Center of Reproductive Medicine, Shandong Provincial Hospital, Cheloo College of Medicine, Shandong University, Jinan 250021, PR China.
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Li HG, Fan LH, Liu B, Qian YQ, Chen M, Sun YX, Dong MY. The association between the two more common genetic causes of spermatogenic failure: a 7-year retrospective study. Asian J Androl 2020; 22:642-648. [PMID: 32362598 PMCID: PMC7705978 DOI: 10.4103/aja.aja_13_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Chromosomal abnormalities and Y chromosome microdeletions are considered to be the two more common genetic causes of spermatogenic failure. However, the relationship between chromosomal aberrations and Y chromosome microdeletions is still unclear. This study was to investigate the incidence and characteristics of chromosomal aberrations and Y chromosome microdeletions in infertile men, and to explore whether there was a correlation between the two genetic defects of spermatogenic failure. A 7-year retrospective study was conducted on 5465 infertile men with nonobstructive azoospermia or oligozoospermia. Karyotype analysis of peripheral blood lymphocytes was performed by standard G-banding techniques. Y chromosome microdeletions were screened by multiplex PCR amplification with six specific sequence-tagged site (STS) markers. Among the 5465 infertile men analyzed, 371 (6.8%) had Y chromosome microdeletions and the prevalence of microdeletions in azoospermia was 10.5% (259/2474) and in severe oligozoospermia was 6.3% (107/1705). A total of 4003 (73.2%) infertile men underwent karyotyping; 370 (9.2%) had chromosomal abnormalities and 222 (5.5%) had chromosomal polymorphisms. Karyotype analysis was performed on 272 (73.3%) patients with Y chromosome microdeletions and 77 (28.3%) had chromosomal aberrations, all of which involved sex chromosomes but not autosomes. There was a significant difference in the frequency of chromosomal abnormalities between men with and without Y chromosome microdeletions (P < 0.05).
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Affiliation(s)
- Hong-Ge Li
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Li-Hong Fan
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Bei Liu
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Ye-Qing Qian
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Min Chen
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Yi-Xi Sun
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Min-Yue Dong
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
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Anton E, Garcia-Guixé E, Ramos-Muntada M, Godo A, Sandalinas M, Blanco J. Chromosome heteromorphisms: do they entail a reproductive risk for male carriers? Asian J Androl 2020; 22:544-546. [PMID: 31929195 PMCID: PMC7523617 DOI: 10.4103/aja.aja_130_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Ester Anton
- Genetics of Male Fertility Group, Cell Biology Unit, Faculty of Biosciences, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès) 08193, Spain
| | | | - Mireia Ramos-Muntada
- Genetics of Male Fertility Group, Cell Biology Unit, Faculty of Biosciences, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès) 08193, Spain
| | - Anna Godo
- Genetics of Male Fertility Group, Cell Biology Unit, Faculty of Biosciences, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès) 08193, Spain
| | | | - Joan Blanco
- Genetics of Male Fertility Group, Cell Biology Unit, Faculty of Biosciences, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès) 08193, Spain
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15
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Optimal waiting period for fresh embryo transfer after hysteroscopic adhesiolysis: a retrospective cohort study. Chin Med J (Engl) 2019; 132:2333-2339. [PMID: 31567384 PMCID: PMC6819041 DOI: 10.1097/cm9.0000000000000456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Supplemental Digital Content is available in the text Background: Very few studies have been conducted regarding the optimal time interval between hysteroscopic adhesiolysis and the embryo transfer (ET). Investigation of this optimal time may be helpful for assisted reproductive technology. Therefore, we investigated effects of the interval between hysteroscopic adhesiolysis and ET upon in vitro fertilization (IVF) cycle outcomes. Methods: Patients were recruited between January 2014 and September 2017 at the Reproductive Hospital Affiliated to Shandong University. Patients who were diagnosed with intra-uterine adhesion (IUA) and underwent hysteroscopic adhesiolysis before fresh IVF-ET or intra-cytoplasmic sperm injection cycles were classified into three groups according to the interval between hysteroscopic adhesiolysis and ET: less than 90 days (Group 1), 90 to 180 days (Group 2), and greater than 180 days (Group 3). Baseline characteristics, controlled ovarian stimulation (COS) response, and pregnancy outcomes after ET were compared. Analysis of variance or non-parametric tests were used to test numerical data. The Pearson's Chi-squared test was used to test categorical data. Results: A total of 312 patients were recruited as follows: 112 in Group 1, 137 in Group 2, and 63 in Group 3. There were no differences in baseline and COS characteristics among the three groups. The live-birth rate in Group 2 (40.1%) was significantly higher than that in Group 1 (17.9%; χ2 = 14.545, P < 0.001). There were no significant differences in the rates of biochemical, ongoing, and clinical pregnancy, and biochemical and clinical pregnancy abortion, as well as stillbirth among the groups. In the mild IUA patients, the live-birth rate was significantly higher in Group 2 (42.6%) compared with Group 1 (22%; χ2 = 8.413, P = 0.004). In the moderate IUA patients, Group 2 (35.7%) had a higher frequency of live births than Group 1 (6.7%; χ2 = 8.187, P = 0.004). Conclusions: The optimal waiting period for fresh ET after hysteroscopic adhesiolysis was 90 to 180 days in the current study.
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MiR-125b-2 Knockout in Testis Is Associated with Targeting to the PAP Gene, Mitochondrial Copy Number, and Impaired Sperm Quality. Int J Mol Sci 2019; 20:ijms20010148. [PMID: 30609807 PMCID: PMC6337273 DOI: 10.3390/ijms20010148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/24/2018] [Accepted: 12/27/2018] [Indexed: 01/02/2023] Open
Abstract
It has been reported that the miR-125 family plays an important role in regulating embryo development. However, the function of miR-125b-2 in spermatogenesis remains unknown. In this study, we used a model of miR-125b knockout (KO) mice to study the relationship between miR-125b-2 and spermatogenesis. Among the KO mice, the progeny test showed that the litter size decreased significantly (p = 0.0002) and the rate of non-parous females increased significantly from 10% to 38%. At the same time, the testosterone concentration increased significantly (p = 0.007), with a remarkable decrease for estradiol (p = 0.02). Moreover, the sperm count decreased obviously (p = 0.011) and the percentage of abnormal sperm increased significantly (p = 0.0002). The testicular transcriptome sequencing revealed that there were 173 up-regulated genes, including Papolb (PAP), and 151 down-regulated genes in KO mice compared with wild type (WT). The Kyoto Encyclopedia of Genes and Genomes (KEGG) and gene ontology (GO) analysis showed that many of these genes were involved in sperm mitochondrial metabolism and other cellular biological processes. Meanwhile, the sperm mitochondria DNA (mtDNA) copy number increased significantly in the KO mice, but there were no changes observed in the mtDNA integrity and mutations of mt-Cytb, as well as the mt-ATP6 between the WT mice and KO mice. In the top 10 up-regulated genes, PAP, as a testis specific expressing gene, affect the process of spermatogenesis. Western blotting and the Luciferase assay validated that PAP was the target of miR-125b-5p. Intriguingly, we also found that both miR-125b and PAP were only highly expressed in the germ cells (GC) instead of in the Leydig cells (LC) and Sertoli cells (SC). Additionally, miR-125b-5p down regulated the secretion of testosterone in the TM3 cell by targeting PAP (p = 0.021). Our study firstly demonstrated that miR-125b-2 regulated testosterone secretion by directly targeting PAP, and increased the sperm mtDNA copy number to affect semen quality. The study indicated that miR-125b-2 had a positive influence on the reproductive performance of animals by regulating the expression of the PAP gene, and could be a potential drugs and diagnostic target for male infertility.
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Liu Y, Zhao XX, Hu XJ, Yang F, Lin P, Cui SC, Zhao W, Cao XY, Wang YS. Effect of sex hormone-binding globulin polymorphisms on the outcome of in vitro fertilization-embryo transfer for polycystic ovary syndrome patients: A case-control study. J Cell Biochem 2018; 120:4675-4686. [PMID: 30520140 DOI: 10.1002/jcb.27756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 09/06/2018] [Indexed: 01/11/2023]
Abstract
Polycystic ovary syndrome (PCOS), known as a common endocrine disorder among females, plagues many PCOS patients. The current study aimed to explore the correlations of sex hormone-binding globulin (SHBG) polymorphisms with the outcome of in vitro fertilization-embryo transfer (IVF-ET) in PCOS patients. PCOS patients who underwent IVF-ET and patients with non-PCOS-related infertility were selected in the study. Correlations of SHBG rs6259 and rs727428 with the risk factors in PCOS were analyzed, followed by the evaluation of the effect of SHBG polymorphisms on the outcome of IVF-ET in PCOS patients. At last, unconditional logistic regression analysis was performed to study the risk factors for IVF-ET treatment outcome. Compared with SHBG rs6259 GG carriers, the incidence of PCOS was found to be elevated in SHBG rs6259 GA+AA carriers which indicated that the A allele was a risk factor for PCOS. Compared with SHBG rs6259 TT carriers, the number of retrieved oocytes and embryo as well as the fertility rate in SHBG rs6259 GA+AA carriers was found to be decreased, while the abortion rate, incidence of ovarian hyperstimulation syndrome, transplant rejection rate, estradiol, and testosterone in serum, as well as testosterone in follicular fluid were elevated. The luteal hormone, serum testosterone, and progesterone and GA+AA genotype of rs6259 were the risk factors for IVF-ET treatment outcome. Taken together, the study showed that SHBG rs6259 polymorphisms might be correlated with the risk of PCOS and the outcome of IVF-ET treatment.
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Affiliation(s)
- Yang Liu
- Department of Obstetrics, Linyi Central Hospital, Linyi, China
| | - Xi-Xi Zhao
- Intensive Care Unit, Linyi Central Hospital, Linyi, China
| | - Xiang-Juan Hu
- Department of Obstetrics and Gynecology, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, China
| | - Feng Yang
- Operating Room, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, China
| | - Ping Lin
- Department of Obstetrics, Linyi Central Hospital, Linyi, China
| | - Shi-Chang Cui
- Department of General Surgery, Linyi Central Hospital, Linyi, China
| | - Wei Zhao
- Department of Obstetrics, Linyi Central Hospital, Linyi, China
| | - Xiao-Yun Cao
- Medical Insurance Management Office, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, China
| | - Yong-Sheng Wang
- Department of Gynecology, Linyi People's Hospital, Linyi, China
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Ou Z, Yin M, Chen Z, Sun L. Meta-analysis of the association between chromosomal polymorphisms and outcomes of embryo transfer following in vitro fertilization and/or intracytoplasmic sperm injection. Int J Gynaecol Obstet 2018; 144:135-142. [DOI: 10.1002/ijgo.12702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/30/2018] [Accepted: 10/29/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Zhanhui Ou
- Center of Reproductive Medicine; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - Minna Yin
- Center of Reproductive Medicine; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - Zhiheng Chen
- Center of Reproductive Medicine; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - Ling Sun
- Center of Reproductive Medicine; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
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Chromosomal polymorphisms are independently associated with multinucleated embryo formation. J Assist Reprod Genet 2017; 35:149-156. [PMID: 28900749 DOI: 10.1007/s10815-017-1037-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 09/03/2017] [Indexed: 01/28/2023] Open
Abstract
PURPOSE The purpose of this study is to explore the factors associated with embryo multinucleation, particularly focused on the influence of parental chromosomal polymorphisms in embryo multinucleation. METHODS This is a retrospective case-control study involving 1260 infertile couples undergoing their first IVF/ICSI cycles. Couples were screened for abnormalities in their karyotype and were evaluated for blastomere persistence of multinucleation. Demographic characteristics, stimulation protocol, and pregnant outcomes were analyzed using logistic regression analysis. RESULTS The level of basal FSH was lower in the multinucleated embryos group (5.37 vs 5.72 IU/L). The Multinucleated embryos group received less gonadotropins (1788.5 vs 1891.3 IU), and the level of LH on day of HCG triggering was lower (1.09 vs 1.30 IU/L). More oocytes were recovered in the multinucleated embryos group (11.51 vs 9.23). Chromosomal polymorphisms were seen in at least 1 out of 163 (12.9%) couples. Multivariate logistic regression analysis revealed that chromosomal polymorphisms were independently associated with an increase in the occurrence risk of multinucleated embryos (OR = 1.61, 95% CI, 1.06-2.44) in the first IVF/ICSI cycle. The miscarriage rate in the multinucleated embryos group was 10% higher than that of the control group. CONCLUSIONS Chromosomal polymorphisms were independently associated with multinucleation embryo formation. A higher LH level on the day of HCG triggering was associated with a decreased chance of multinucleation.
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Zhang B, Cao L, Ding L, Yan L, Chen ZJ. Effect of different ectopic pregnancy treatments on cryopreserved embryo transfer outcomes: A retrospective cohort study. Gynecol Minim Invasive Ther 2017; 6:103-107. [PMID: 30254890 PMCID: PMC6135176 DOI: 10.1016/j.gmit.2017.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 01/02/2017] [Accepted: 01/03/2017] [Indexed: 11/19/2022] Open
Abstract
Objective To evaluate the effects of different treatment methods for previous ectopic pregnancies (EP) on cryopreserved embryo transfer (CET) outcomes. Materials and Methods This was a retrospective cohort study. Patients with EP histories were divided into four groups based on their previous EP treatments: Group 1-unilateral tubal removal; Group: 2-bilateral tubal removal or unilateral tubal removal with contralateral tubal ligation; Group: 3-conservative surgery group; and Group 4-conservative medication group. A total of 1333 women with previous histories of being admitted to the hospital for CET treatment were consecutively enrolled between January 2009 and December 2014. Results Patients who underwent bilateral tubal ligation or removal had a lower miscarriage rate [8.88% vs. 3.46%, p = 0.006, odds ratio = 2.718, 95% confidence interval (CI) = 1.301-5.677] than those who underwent unilateral tubal removal. No significant difference was observed in the rate of EP after CET in the four groups in women with EP histories. (p1 = 0.258, 95%CI = 0.113-1.836; p2 = 0.137, 95%CI = 0.975-0.997; p3 = 0.314, 95%CI = 0.987-1.001; p4 = 0.198, 95%CI = 0.987-1.001). The groups were not different with regard to other pregnancy outcomes. Conclusion There was no significant difference among EP treatment methods with regard to their impacts on CET outcomes in women with EP histories. Bilateral tubal ligation or removal surgery can decrease the miscarriage rate after CET.
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Affiliation(s)
- Bingqian Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- The Key laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Lianbao Cao
- Center for Reproductive Medicine, Shandong University, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- The Key laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Lingling Ding
- Center for Reproductive Medicine, Shandong University, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- The Key laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Lei Yan
- Center for Reproductive Medicine, Shandong University, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- The Key laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- Corresponding authors. Centre for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan 250021, China. E-mail addresses: (L. Yan), (Z.-J. Chen)
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- The Key laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- Corresponding authors. Centre for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan 250021, China. E-mail addresses: (L. Yan), (Z.-J. Chen)
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Ni T, Li J, Chen H, Gao Y, Gao X, Yan J, Chen ZJ. Male chromosomal polymorphisms reduce cumulative live birth rate for IVF couples. J Assist Reprod Genet 2017; 34:1017-1025. [PMID: 28573525 DOI: 10.1007/s10815-017-0951-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 05/12/2017] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Chromosomal polymorphisms are associated with infertility, but their effects on assisted reproductive outcomes are still quite conflicting, especially after IVF treatment. This study evaluated the role of chromosomal polymorphisms of different genders in IVF pregnancy outcomes. METHODS Four hundred and twenty-five infertile couples undergoing IVF treatment were divided into three groups: 214 couples with normal chromosomes (group A, control group), 86 couples with female polymorphisms (group B), and 125 couples with male polymorphisms (group C). The pregnancy outcomes after the first and cumulative transfer cycles were analyzed, and the main outcome measures were live birth rate (LBR) after the first transfer cycle and cumulative LBR after a complete IVF cycle. RESULTS Comparison of pregnancy outcomes after the first transfer cycle within group A, group B, and group C demonstrated a similar LBR as well as other rates of implantation, clinical pregnancy, early miscarriage, and ongoing pregnancy (P > 0.05). However, the analysis of cumulative pregnancy outcomes indicated that compared with group A, group C had a significantly lower LBR per cycle (80.4 vs 68.00%), for a rate ratio of 1.182 (95% CI 1.030 to 1.356, P = 0.01) and a significantly higher cumulative early miscarriage rate (EMR) among clinical pregnancies (7.2 vs 14.7%), for a rate ratio of 0.489 (95% CI 0.248 to 0.963, P = 0.035). CONCLUSION Couples with chromosomal polymorphisms in only male partners have poor pregnancy outcomes after IVF treatment manifesting as high cumulative EMR and low LBR after a complete cycle.
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Affiliation(s)
- Tianxiang Ni
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China
| | - Jing Li
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China
| | - Hong Chen
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China
| | - Yuan Gao
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China.,The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, 250021, China
| | - Xuan Gao
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China.,The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, 250021, China
| | - Junhao Yan
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China. .,The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, 250021, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong Provincial Hospital, Shandong University, Shandong Provincial Key Laboratory of Reproductive Medicine, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China.,The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, 250021, China.,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
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The incidence of long heterochromatic polymorphism variants in infants conceived through assisted reproductive technologies. Reprod Biomed Online 2017; 35:219-224. [PMID: 28552246 DOI: 10.1016/j.rbmo.2017.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 04/18/2017] [Accepted: 04/19/2017] [Indexed: 11/20/2022]
Abstract
Long heterochromatic variants on chromosomes 1, 9, 16 and Y are suspected to be implicated in infertility and early pregnancy loss, but little is known about how these variants are inherited in children conceived by infertile couples through assisted reproductive technologies. In this case-control study, the incidence of these variants was compared between infants conceived using intracytoplasmic sperm injection (ICSI), IVF and natural intercourse by karyotyping lymphocytes from cord blood or peripheral blood. This study included a total of 647 infants, including 189 conceived by ICSI, 177 by IVF, and 281 naturally conceived (NC). Variants were observed in 13.23% of ICSI, 15.82% of IVF and 12.46% of NC infants, showing that the incidence of variants does not appear to be significantly different between infants conceived using assisted reproductive technologies and infants conceived naturally. Because the parents of these infants were not karyotyped, we can only speculate as to whether these variants were directly inherited. This study concludes that infants born from infertile parents using assisted reproductive technologies to achieve pregnancy do not appear to be any more likely than NC infants of fertile parents to possess long heterochromatic variants.
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Xu X, Zhang R, Wang W, Liu H, Liu L, Mao B, Zeng X, Zhang X. The effect of chromosomal polymorphisms on the outcomes of fresh IVF/ICSI-ET cycles in a Chinese population. J Assist Reprod Genet 2016; 33:1481-1486. [PMID: 27544276 DOI: 10.1007/s10815-016-0793-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 08/09/2016] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Chromosomal polymorphisms (CPs) have been reported to be associated with infertility; however, their effects on the outcomes of in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) are still controversial. In this retrospective study, we aimed to evaluate the effect of CPs on IVF/ICSI-ET outcomes. METHODS To investigate whether CPs affected the outcomes of fresh IVF/ICSI-ET cycles in a Chinese population, we evaluated infertile couples with male carriers of CPs (n = 348), infertile couples with female carriers (n = 99), and unaffected couples (n = 400) who had received their first treatment cycles in our hospital between January 2013 and March 2015. RESULTS CPs in either male or female carriers seemed to have adverse effects on IVF/ICSI-ET outcomes. CPs in male carriers affected outcomes mainly by decreasing the rates of fertilization, embryo cleavage, good quality embryos, clinical pregnancies, ongoing pregnancies, and deliveries as well as increasing the biochemical pregnancy rate (P < 0.05); CPs in female carriers affected outcomes only by lowering the embryo cleavage rate (P < 0.05). The mean fertilization rate of couples with male CP carriers undergoing IVF was significantly lower than that in those undergoing ICSI (61.1 versus 66.5 %, respectively; P = 0.0004). CONCLUSIONS Our data provide evidence for the involvement of CPs in the poor outcomes of fresh IVF/ICSI-ET cycles in a Chinese population. The use of ICSI might improve outcomes by increasing the fertilization rate for men with CPs.
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Affiliation(s)
- Xiaojuan Xu
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China.
| | - Rui Zhang
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Wei Wang
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Hongfang Liu
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Lin Liu
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Bin Mao
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Xiangwu Zeng
- Department of Surgery, People's Hospital, Minqin, Gansu, China
| | - Xuehong Zhang
- The Reproductive Medicine Hospital of the First Hospital of Lanzhou University, Lanzhou, Gansu, China.
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Lindgren KE, Nordqvist S, Kårehed K, Sundström-Poromaa I, Åkerud H. The effect of a specific histidine-rich glycoprotein polymorphism on male infertility and semen parameters. Reprod Biomed Online 2016; 33:180-8. [DOI: 10.1016/j.rbmo.2016.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/07/2016] [Accepted: 05/10/2016] [Indexed: 12/27/2022]
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Effect of chromosomal polymorphisms of different genders on fertilization rate of fresh IVF-ICSI embryo transfer cycles. Reprod Biomed Online 2014; 29:436-44. [PMID: 25131557 DOI: 10.1016/j.rbmo.2014.06.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 06/12/2014] [Accepted: 06/17/2014] [Indexed: 11/23/2022]
Abstract
To explore whether chromosomal polymorphisms of different genders affect outcomes of fresh IVF and intracytoplasmic sperm injection (ICSI) embryo transfer cycles differently, 37 couples with chromosomal polymorphisms were identified out of 614 infertile couples undergoing IVF-ICSI treatments. Group 1 included 20 couples in which only the male carried chromosomal polymorphisms; group 2 included 17 couples with female carriers only; group 3 included 19 infertile couples with normal karyotypes randomly selected as controls. A significantly lower fertilization rate was found in group 1 compared with groups 2 and 3 (56.68% in Group 1, 78.02% in group 2 and 71.74% in group 3; group 1 versus group 2, P < 0.001; group 1 versus group 3, P = 0.001; respectively). When stratified according to fertilization method, the fertilization rate in IVF cycles of group 1 was significantly lower than group 3 (50.00% in Group 1, 73.89% in Group 3, P < 0.001). Fertilization rates in ICSI cycles between groups 1 and 3 were not significantly different. This study suggests that male chromosomal polymorphisms adversely influence fertilization rates of IVF cycles. The use of ICSI may improve the success of infertility treatment by increasing the fertilization rate for men with chromosomal polymorphisms.
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Effect of fibroids not distorting the endometrial cavity on the outcome of in vitro fertilization treatment: a retrospective cohort study. Fertil Steril 2014; 101:716-21. [DOI: 10.1016/j.fertnstert.2013.11.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 11/12/2013] [Accepted: 11/15/2013] [Indexed: 11/21/2022]
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Two Y chromosomes with duplication of the distal long arm including the entire AZFc region. Gene 2014; 536:444-8. [DOI: 10.1016/j.gene.2013.11.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 11/07/2013] [Accepted: 11/27/2013] [Indexed: 12/17/2022]
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Yan L, Ding L, Tang R, Chen ZJ. Effect of Adenomyosis on In Vitro Fertilization/Intracytoplasmic Sperm Injection Outcomes in Infertile Women: A Retrospective Cohort Study. Gynecol Obstet Invest 2014; 77:14-8. [DOI: 10.1159/000355101] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 08/09/2013] [Indexed: 11/19/2022]
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Abstract
Following pathogen infection or tissue damage, the stimulation of pattern recognition receptors on the cell surface and in the cytoplasm of innate immune cells activates members of each of the major mitogen-activated protein kinase (MAPK) subfamilies--the extracellular signal-regulated kinase (ERK), p38 and Jun N-terminal kinase (JNK) subfamilies. In conjunction with the activation of nuclear factor-κB and interferon-regulatory factor transcription factors, MAPK activation induces the expression of multiple genes that together regulate the inflammatory response. In this Review, we discuss our current knowledge about the regulation and the function of MAPKs in innate immunity, as well as the importance of negative feedback loops in limiting MAPK activity to prevent host tissue damage. We also examine how pathogens have evolved complex mechanisms to manipulate MAPK activation to increase their virulence. Finally, we consider the potential of the pharmacological targeting of MAPK pathways to treat autoimmune and inflammatory diseases.
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