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Del Gallego R, Lawrenz B, Ata B, Kalafat E, Melado L, Elkhatib I, Fatemi H. Association of 'normal' early follicular FSH concentrations with unexpected poor or suboptimal response when ovarian reserve markers are reassuring: a retrospective cohort study. Reprod Biomed Online 2024; 48:103701. [PMID: 38309124 DOI: 10.1016/j.rbmo.2023.103701] [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: 07/13/2023] [Revised: 10/06/2023] [Accepted: 11/06/2023] [Indexed: 02/05/2024]
Abstract
RESEARCH QUESTION Are basal FSH measurements, when elevated within its normal range, useful for assessing overall ovarian response and predicting unexpected poor or suboptimal ovarian response? DESIGN Retrospective cohort study of ovarian stimulation cycles. RESULTS A total of 1058 ovarian stimulation cycles (891 first, 167 repeated) were included. Anti-Müllerian hormone (AMH) values were categorized into four (0 to ≤0.6, >0.6 to ≤1.2, >1.2 to ≤3.0, >3.0 to ≤6.25 ng/ml) and basal FSH levels into four groups (<25th percentile: >3.5 to 6.1 IU/ml; 25-75th percentile: >6.1 to ≤8.5 IU/ml; >75-90th percentile: >8.5 to ≤9.9 IU/ml; >90th percentile: >9.9 to ≤12.5 IU/ml). Including only first cycles, a significant independent effect of basal FSH on retrieved cumulus-oocyte complex (COC) count was seen for all basal FSH categories (>90th, >75 to ≤90th, >25 to ≤75th compared with ≤25th percentile, P < 0.001, P = 0.001 and P = 0.007, respectively), when adjusted for age, body mass index (BMI), AMH, antral follicle count (AFC), starting dose and gonadotrophin type. Including only first cycles, patients aged 35 years or older with AFC of 5 or above and AMH 1.2 ng/ml or above, showed significantly higher odds of unexpected poor or suboptimal response if they had higher basal FSH values. Most prominently in the above 90th percentile group (OR 8.64, 95% CI 2.84 to 28.47 compared with <25th percentile) but lower categories (>25th to ≤75th percentile: OR 3.04, 95% CI 1.42 t 6.99; >75th to ≤90th percentile: OR 3.47, 95% CI 1.28 to 9.83 compared with ≤25th percentile) also showed a significant association after adjusting for age, AMH, BMI, AFC, dose, and gonadotrophin type. In patients with a second cycle, an increase in FSH levels in the second round compared with the first was associated with fewer retrieved COCs (estimate: -0.44, 95% CI -0.44 to -0.05, P = 0.027). This effect was adjusted for changes in age, FSH, AFC, starting dose, stimulation duration and change in medication type. CONCLUSIONS Basal FSH is independently associated with overall ovarian response. Moreover, it is associated with unexpected poor or suboptimal response in patients, who would fulfill POSEIDON group 2 criteria after oocyte retrieval.
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Affiliation(s)
| | - Barbara Lawrenz
- ART Fertility Clinic, Royal Marina Village, B22-23, Abu Dhabi, UAE; Department of Reproductive Medicine UZ Ghent, Belgium.
| | - Baris Ata
- ART Fertility Clinic, Jumeirah St - Umm Suqeim - Umm Suqeim 3 - Dubai, UAE; Faculty of Medicine, Department of Obstetrics & Gynecology, Koc University, Istanbul, Turkey
| | - Erkan Kalafat
- ART Fertility Clinic, Jumeirah St - Umm Suqeim - Umm Suqeim 3 - Dubai, UAE; Faculty of Medicine, Department of Obstetrics & Gynecology, Koc University, Istanbul, Turkey
| | - Laura Melado
- ART Fertility Clinic, Royal Marina Village, B22-23, Abu Dhabi, UAE
| | - Ibrahim Elkhatib
- ART Fertility Clinic, Royal Marina Village, B22-23, Abu Dhabi, UAE; School of Biosciences, University of Kent, Canterbury, UK
| | - Human Fatemi
- ART Fertility Clinic, Royal Marina Village, B22-23, Abu Dhabi, UAE; ART Fertility Clinic, Jumeirah St - Umm Suqeim - Umm Suqeim 3 - Dubai, UAE
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Alshammary AF, Alsobaie SF, Alageel AA, Aldakheel FM, Ansar S, Alrashoudi R, Farzan R, Alturki NA, Alhaizan MA, Al-Mutawa J, Ali Khan I. Molecular Role of Asn680Ser and Asp37Glu Missense Variants in Saudi Women with Female Infertility and Polycystic Ovarian Syndrome. Curr Issues Mol Biol 2023; 45:5494-5514. [PMID: 37504264 PMCID: PMC10378235 DOI: 10.3390/cimb45070348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Female infertility (FI) is a global health issue. Polycystic ovary syndrome (PCOS) is a common cause of FI. The renalase gene (RNLS) is associated with FI and other human diseases. Based on the documented missense variants, rs6166 and rs2296545 single-nucleotide polymorphisms (SNPs) were not identified in Saudi women with FI and PCOS. This study aimed to investigate the molecular role of the two SNPs in Saudi women with FI and PCOS. In this cross-sectional study, 96 healthy controls, 96 women with FI, and 96 women with PCOS were recruited. DNA was isolated, and polymerase chain reactions and Sanger sequencing analysis were performed using rs6166 and rs2296545 SNPs. The data obtained from the three groups were used to perform statistical analyses based on genotype, allele frequencies, regression models, and ANOVA analysis. Both rs6166 and rs2296545 had no role in FI or PCOS in Saudi women. A predicted reason for non-association in Saudi women could be the role of elderly women in the controls compared with women with FI and PCOS. Moreover, age, weight, and body mass index were higher in the control group than the FI and PCOS groups. In conclusion, rs6166 and rs2296545 SNPs were not associated with FI or PCOS in Saudi women.
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Affiliation(s)
- Amal F Alshammary
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Sarah F Alsobaie
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Arwa A Alageel
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Fahad M Aldakheel
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Sabah Ansar
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Reem Alrashoudi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Raed Farzan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Norah A Alturki
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Maysoon Abdulhadi Alhaizan
- Department of Obstetrics and Gynecology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
| | - Johara Al-Mutawa
- Department of Obstetrics and Gynecology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
| | - Imran Ali Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
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Monge-Ochoa B, Montoro L, Montoya J, Ruiz-Pesini E, López-Pérez MJ, de Castro F, Díez-Sánchez C. m.4216 T > C polymorphism in JT cluster determines a lower pregnancy rate in response to controlled ovarian stimulation treatment. J Assist Reprod Genet 2023; 40:671-682. [PMID: 36701026 PMCID: PMC10033795 DOI: 10.1007/s10815-023-02721-2] [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: 02/14/2022] [Accepted: 01/10/2023] [Indexed: 01/27/2023] Open
Abstract
PURPOSE To analyze the influence of Caucasian mitochondrial haplogroups on controlled ovarian stimulation outcome (COS), embryo (E), and pregnancy success. METHODS In a Caucasian population (n = 517) undergoing COS, mitochondrial haplogroups and physiological parameters were determined. Patients were classified, according to Bologna criteria, as good (>3)/poor ≤3) responder, on dependence of recruited oocytes (RO), and in pregnancy/non-pregnancy groups. Haplogroups were determined by sequencing mitochondrial hypervariable sequence I and confirmed by polymerase chain reaction (PCR), followed by restriction fragment length polymorphisms (RFLP). RESULTS The rank of total dose of FSH (TD FSH) was similar in all clusters/haplogroups, except in JT, which is narrower (950-3,650 IU), particularly in T (1,350-3,650 IU). The statistical analysis showed higher RO and E in JT when compared to U, although it was only Uk which accumulated significantly in pregnancy respect to JT. Pearson's correlations between TD FSH and RO showed negative statistical significance in all population (P = 0.001), H (P = 0.03), JT (P = 0.01), and T (P = 0.03). The percentage of contribution of TD FSH on RO was almost nine times in the JT cluster as compared to all population one. CONCLUSIONS JT cluster shows a different influence of TD FSH on RO. JT cluster shows higher RO and E than U, but it is Uk which exhibits a significant higher pregnancy rate than JT. The negative influence of the JT cluster on pregnancy success strongly suggests that the m.4216 T > C polymorphism could be responsible.
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Affiliation(s)
- Belén Monge-Ochoa
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza, Spain
| | - Luis Montoro
- Unidad de Reproducción Asistida, Hospital Universitario Príncipe de Asturias, Universidad Complutense de Madrid, Alcalá de Henares, Madrid, Spain
| | - Julio Montoya
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Madrid, Spain
- Instituto de Investigación Sanitaria (IIS) de Aragón, Zaragoza, Spain
| | - Eduardo Ruiz-Pesini
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Madrid, Spain
- Instituto de Investigación Sanitaria (IIS) de Aragón, Zaragoza, Spain
| | - Manuel J López-Pérez
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza, Spain
| | - Francisco de Castro
- Unidad de Reproducción Asistida, Hospital Universitario Príncipe de Asturias, Universidad Complutense de Madrid, Alcalá de Henares, Madrid, Spain
| | - Carmen Díez-Sánchez
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza, Spain.
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Prodromidou A, Dimitroulia E, Mavrogianni D, Kathopoulis N, Pappa KI, Loutradis D. The Effect of the Allelics of Ser680Asn Polymorphisms of Follicle-Stimulating Hormone Receptor Gene in IVF/ICSI Cycles: a Systematic Review and Meta-analysis. Reprod Sci 2023; 30:428-441. [PMID: 35680725 DOI: 10.1007/s43032-022-00996-x] [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: 12/06/2021] [Accepted: 06/02/2022] [Indexed: 10/18/2022]
Abstract
A significant number of single-nucleotide polymorphisms (SNPs) of the follicle-stimulating hormone receptor (FSHr) can modify the response to exogenous FSH administration. A significant diversity in response to controlled ovarian stimulation (COS) in assisted reproductive technologies (ART) according to the type of allelic has been reported. We aimed to evaluate the relation between the Asn680Ser allelics and COS. A total of 4 electronic databases were searched for articles published up to August 2021. Prospective and retrospective comparative studies which reported outcomes after COS in patients who underwent genotyping for the detection of FSHr polymorphisms were considered eligible. A total of 11 studies including 4343 patients with Asn680Ser polymorphisms of the FSHr were included. Patients carrying the Asn/Asn allelic provide elevated E2 on the day of human chorionic gonadotropin (hCG) administration (1549 patients MD 262.39 pg/ml, p = 0.0007), but less transferrable embryos as compared with Ser/Ser genotype (283 patients MD - 0.11 embryos, p = 0.04). Ans/Ser versus Ser/Ser genotypes showed a higher E2 on the day of hCG administration (1799 patients, MD 207.86 pg/ml, p = 0.02). Pregnancy rates were similar in all combination of genotypes. There is currently no strong evidence suggesting that the examination of one gene in relation to genotypes can be effectively used as single tool to improve COS. However, polygenic analysis of different polymorphisms by analyzing the genetic profile of each individual could be useful. Further research is warranted to develop an algorithm that will enable simultaneous analysis of many genes, which combined with hormonal profile could promote treatment individualization.
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Affiliation(s)
- Anastasia Prodromidou
- Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens School of Medicine, Athens, Greece.
| | - Evangelia Dimitroulia
- Department of Microbiology, Medical School, Biopathology University of Athens, Athens, Greece
| | - Depy Mavrogianni
- Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Nikolaos Kathopoulis
- Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Kalliopi I Pappa
- Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Dimitrios Loutradis
- Athens Medical School, Kapodistrian University of Athens, Fertility Institute, Athens, Greece
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Utomo B, Rimayanti R, Triana IN, Fadholly A. Melanocortin-4 receptor and leptin as genes for the selection of superior Madrasin cattle. Vet World 2021; 14:3224-3228. [PMID: 35153416 PMCID: PMC8829405 DOI: 10.14202/vetworld.2021.3224-3228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 11/24/2021] [Indexed: 11/27/2022] Open
Abstract
Background and Aim: The genetic improvement of cattle through livestock section is based on quantitative, qualitative, and molecular characteristics. This study examined polymorphisms of the melanocortin-4 receptor (MC4R) and leptin genes as a reference for the selection of superior breeds in Madrasin cattle. Materials and Methods: The leptin and MC4R genes of Madrasin cattle were amplified using polymerase chain reaction (PCR); then, restriction fragment length polymorphism of the leptin gene was performed using the restriction enzyme BsaA1, at site 2793 with ACGT point position. Results: The leptin gene was divided into three bands, namely, AA with one fragment (522 bp), CG with two fragments (441 bp and 81 bp), and AG with three fragments (522 bp, 441 bp, and 81 bp). The MCR-4 gene was divided into three bands, namely, 493 bp, 318 bp, and 175 bp. Conclusion: The MC4R and leptin genes can act as molecular markers for growth traits in Madrasin cattle and can be used to genetically optimize and improve growth. The GG allele of the MC4R gene and the AA allele of the leptin gene can be used in Madrasin cattle.
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Affiliation(s)
- Budi Utomo
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Rimayanti Rimayanti
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Indah Norma Triana
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Amaq Fadholly
- Division of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, 60115, Indonesia
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Monge-Ochoa B, Montoro L, Gil-Arribas E, Montoya J, Ruiz-Pesini E, López-Pérez MJ, de Castro F, Díez-Sánchez C. Variants Ala307Ala and Ser680Ser of 307 and 680 FSHr polymorphisms negatively influence on assisted reproductive techniques outcome and determine high probability of non-pregnancy in Caucasian patients. J Assist Reprod Genet 2021; 38:2769-2779. [PMID: 34346002 PMCID: PMC8581085 DOI: 10.1007/s10815-021-02276-0] [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: 03/23/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022] Open
Abstract
PURPOSE To determine the influence of different genotypes of Ala307Thr and Asn680Ser FSHr polymorphisms on controlled ovarian stimulation (COS) outcome and pregnancy. METHODS This study collected blood and physiological and clinical parameters of 517 Caucasian patients (Statistical power ≥ 80%) that underwent COS treatment. Genotypes of Ala307Thr and Asn680Ser polymorphisms were determined using PCR amplification followed by Bsu36I and BsrI digestion, respectively. RESULTS Ala307Ala and Ser680Ser genotypes associated to worse parameters of COS outcome (preovulatory follicles P = 0.05, in both), justifying their lower pregnancy rate than Non-Ala307Ala, P = 0.01 and Non-Ser680Ser, P = 0.004, respectively or together, (P = 0.003). Within the Non-Ala307Ala group, Thr307Thr genotype showed higher number of fertilized oocytes (P = 0.04) and embryos (P = 0.01) than Non-Thr307Thr, but no influence on pregnancy rate. Ala307Ala and Ser680Ser patients doubled probability of non-pregnancy than Non-Ala307Ala (odds ratio = 2.0) and Non-Ser680Ser (odds ratio = 2.11), respectively. Ala307Ala and Ser680Ser genotypes tend to appear together (P < 0.0001), which increases the probability of non-pregnancy. CONCLUSIONS Ala307Ala and Ser680Ser genotypes of 307 and 680 FSHr polymorphisms associate to worse COS outcome than its respective Non-Ala307Ala and Non-Ser680Ser. Within the Non-Ala307Ala genotypes, Thr307Thr, although shows higher Fertilized Oocytes and Embryos, do not influence on pregnancy rate. Ala307Ala and Ser680Ser genotypes double the probability of Non-Pregnancy than their respective Non-Ala307Ala and Non-Ser680Ser genotypes. Furthermore, the strong tendency of these genotypes to appear together worsens the probability of pregnancy in these patients.
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Affiliation(s)
- Belén Monge-Ochoa
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Luis Montoro
- Unidad de Reproducción Asistida, Hospital Universitario Príncipe de Asturias, Universidad Complutense de Madrid, Alcalá de Henares, Madrid, Spain
| | | | - Julio Montoya
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain
- Centro de Investigaciones Biomédicas en Red (CIBER) de Enfermedades Raras, Madrid, Spain
- Instituto de Investigación Sanitaria (IIS) de Aragón, Zaragoza, Spain
| | - Eduardo Ruiz-Pesini
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain
- Centro de Investigaciones Biomédicas en Red (CIBER) de Enfermedades Raras, Madrid, Spain
- Instituto de Investigación Sanitaria (IIS) de Aragón, Zaragoza, Spain
| | - Manuel J López-Pérez
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Francisco de Castro
- Unidad de Reproducción Asistida, Hospital Universitario Príncipe de Asturias, Universidad Complutense de Madrid, Alcalá de Henares, Madrid, Spain
| | - Carmen Díez-Sánchez
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain.
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Kim SH, Yoon JT. Morphological changes in mouse ovary due to hormonal hypersecretion and matrix metalloproteinase -2 activity. Histol Histopathol 2021; 36:527-534. [PMID: 33620082 DOI: 10.14670/hh-18-318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We analyzed whether aberrant gonadotropin secretion affects the morphological remodeling of murine ovarian tissues facilitated by activated matrix metalloproteinase (MMP) enzymes. Six mice were intraperitoneally injected with 5 IU of pregnant mare serum gonadotropin (PMSG) or human chorionic gonadotropin (HCG) every two days after estrus synchronization. Morphology and expression of various MMPs were assessed following the successful induction of hormonal secretion in these tissues. HCG treatment, but not PMSG treatment, resulted in the expanded production of granulose second follicular cells. In addition, the number of developing follicular cells in the HCG group increased compared with that in the PMSG group. Ovarian diameters were also very small in the PMSG group. Immunohistochemistry revealed decreased MMP-2 protein activity in the HCG group and increased MMP-2 activity in the PMSG group. Activity was particularly high in theca and granulose cells of the PMSG group, but only partial activity was observed in the theca cells of the HCG group. Vascular endothelial growth factor activity was increased in both the external and internal theca cell walls in the PMSG group while the HCG group showed high overall expression of this protein in the internal theca cells. These data indicate that follicular cell activity and remodeling of the ovaries differ based on the type of secretory hormone signals they receive. Inappropriate gonadotropin secretion may induce functional changes in the ovaries, and follicular remodeling may be facilitated by the activity of various MMPs.
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Affiliation(s)
- Sang-Hwan Kim
- Institute of Genetic Engineering, Hankyong National University, Jungang-ro, Ansung, Gyeonggi-do, South Korea
| | - Jong-Taek Yoon
- Institute of Genetic Engineering, Hankyong National University, Jungang-ro, Ansung, Gyeonggi-do, South Korea.,Department of Animal Life and Environment Science, Hankyong National University, Jungang-ro, Ansung, Gyeonggi-do, South Korea.
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Pharmacogenomic Biomarkers of Follicle-Stimulating Hormone Receptor Malfunction in Females with Impaired Ovarian Response-A Genetic Survey. J Clin Med 2021; 10:jcm10020170. [PMID: 33561079 PMCID: PMC7825139 DOI: 10.3390/jcm10020170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/01/2021] [Accepted: 01/02/2021] [Indexed: 02/07/2023] Open
Abstract
Follicle-stimulating hormone receptor (FSHR) plays an essential role as one of the most important molecules in response to some of infertility related medications. Impaired ovarian reserve and poor response to such treatments are partially dependent on the FSHR molecule itself. However, the function and drug sensitivity for this receptor may change due to various allele and polymorphisms in the FSHR gene. Studies indicated some of the FSHR-mediated treatments utilized in clinical centers display different outcomes in specific populations, which may arise from FSHR altered genotypes in certain patients. To support the increased demands for reaching the personalized drug and hormone therapy in clinics, focusing on actionable variants through Pharmacogenomic analysis of this receptor may be necessary. The current study tries to display a perspective view on genetic assessments for Pharmacogenomic profiling of the FSHR gene via providing a systematic and critical overview on the genetics of FSHR and its diverse responses to ligands for infertility treatment in females with impaired ovarian responses and show the potential effects of the patient genetic make-up on related binding substances efficacy. All identified functional drug-related alleles were selected through a comprehensive literature search and analyzed. Advanced technologies for the genetic evaluation of them are also discussed properly.
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Zhang Z, Wu L, Diao F, Chen B, Fu J, Mao X, Yan Z, Li B, Mu J, Zhou Z, Wang W, Zhao L, Dong J, Zeng Y, Du J, Kuang Y, Sun X, He L, Sang Q, Wang L. Novel mutations in LHCGR (luteinizing hormone/choriogonadotropin receptor): expanding the spectrum of mutations responsible for human empty follicle syndrome. J Assist Reprod Genet 2020; 37:2861-2868. [PMID: 32860205 DOI: 10.1007/s10815-020-01931-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To screen novel mutations in LHCGR responsible for empty follicle syndrome and explore the pathological mechanism of mutations. METHODS Four affected individuals diagnosed with infertility-associated anovulation or oligo-ovulation from three independent families were recruited. Sanger sequencing was used to identify the LHCGR mutations in affected individuals. Western blot was performed to evaluate the effects of mutations on LHCGR protein levels. Immunofluorescence was done to explore the effects of mutations on LHCGR subcellular localization. The ATP levels were measured to infer the functional effects of the mutations on LHCGR. RESULTS In the present study, three novel biallelic mutations in LHCGR were identified in four affected individuals from three independent families with empty follicle syndrome or oligo-ovulation. All biallelic mutations were inherited from the proband of their parents. The western blot showed that the identified mutations decreased LHCGR protein level and altered the glycosylation pattern. The immunofluorescence showed an ectopic subcellular localization of LHCGR in cultured HeLa cells. Besides, the mutations in LHCGR also reduced the cellular ATP consumption. CONCLUSION These findings confirm previous studies and expand the mutational spectrum of LHCGR, which will provide genetic diagnostic marker for patients with empty follicle syndrome.
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Affiliation(s)
- Zhihua Zhang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Ling Wu
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Feiyang Diao
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Biaobang Chen
- NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, 200032, China
| | - Jing Fu
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Xiaoyan Mao
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Zheng Yan
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Bin Li
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Jian Mu
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Zhou Zhou
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Wenjing Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Lin Zhao
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Jie Dong
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Yang Zeng
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Jing Du
- NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, 200032, China
| | - Yanping Kuang
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Xiaoxi Sun
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Lin He
- Bio-X Center, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Qing Sang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China. .,Zhuhai Fudan Innovation Institute, Zhuhai, 519000, Guangdong, China.
| | - Lei Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China. .,Zhuhai Fudan Innovation Institute, Zhuhai, 519000, Guangdong, China. .,Shanghai Center for Women and Children's Health, Shanghai, 200062, China.
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Utomo B, Putranto ED, Fadholly A. Profile of follicle-stimulating hormone and polymorphism of follicle-stimulating hormone receptor in Madrasin cattle with ovarian hypofunction. Vet World 2020; 13:879-883. [PMID: 32636582 PMCID: PMC7311873 DOI: 10.14202/vetworld.2020.879-883] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 04/07/2020] [Indexed: 11/16/2022] Open
Abstract
Background and Aim The follicle-stimulating hormone (FSH) gene is an essential regulator of fertility in livestock. This study aims to provide information on the genetic makeup of Madrasin cattle experiencing hypofunction by the FSH profile and FSH receptors (FSHR) polymorphism. Materials and Methods Blood samples were collected from the Bangkalan regency in Indonesia. DNA was isolated and purified following the extraction protocol of polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism. Results Our results showed that the FSH gene had a band length of 310 bp and produce two alleles (A and B) with restriction enzymes at 250 bp, 230 bp, and 145 bp. Furthermore, the FSHR gene had a band length of 303 bp and produced two homozygous genotypes: GG at bp 239 and CC at bp 188. Conclusion Based on these differences, there was no change in allele frequency and genotype between Madura and Madrasin cattle due to crossbreeding with Limousin cattle. Thus, further detailed investigations of Madrasin cattle are required to elucidate the profile of the LH and LHR genes.
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Affiliation(s)
- Budi Utomo
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Emmanuel Djoko Putranto
- Department of Veterinary Clinical, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Amaq Fadholly
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
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11
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The transcriptional regulator CBX2 and ovarian function: A whole genome and whole transcriptome approach. Sci Rep 2019; 9:17033. [PMID: 31745224 PMCID: PMC6864077 DOI: 10.1038/s41598-019-53370-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/30/2019] [Indexed: 12/26/2022] Open
Abstract
The chromobox homolog 2 (CBX2) was found to be important for human testis development, but its role in the human ovary remains elusive. We conducted a genome-wide analysis based on DNA adenine methyltransferase identification (DamID) and RNA sequencing strategies to investigate CBX2 in the human granulosa cells. Functional analysis revealed that CBX2 was upstream of genes contributing to ovarian function like folliculogenesis and steroidogenesis (i.e. ESR1, NRG1, AKR1C1, PTGER2, BMP15, BMP2, FSHR and NTRK1/2). We identified CBX2 regulated genes associated with polycystic ovary syndrome (PCOS) such as TGFβ, MAP3K15 and DKK1, as well as genes implicated in premature ovarian failure (POF) (i.e. POF1B, BMP15 and HOXA13) and the pituitary deficiency (i.e. LHX4 and KISS1). Our study provided an excellent opportunity to identify genes surrounding CBX2 in the ovary and might contribute to the understanding of ovarian physiopathology causing infertility in women.
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12
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Rai S, Ashish, Kumari P, Singh A, Singh R. Correlation of follicle-stimulating hormone receptor gene Asn 680 Ser (rs6166) polymorphism with female infertility. J Family Med Prim Care 2019; 8:3356-3361. [PMID: 31742168 PMCID: PMC6857416 DOI: 10.4103/jfmpc.jfmpc_685_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 08/30/2019] [Accepted: 09/19/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND AIMS Female infertility is a complex multifactorial, and polygenic disease associated with genetic factors plays an essential role in its formation and follicle development, oocyte maturation, and steroidogenesis regulation in the ovary. The aim here is too study the genetic association between follicle-stimulating hormone receptor (FSHR) Asn680Ser; (rs6166) gene polymorphism with female Infertility in our population. METHODS In this prospective case-control study, we enrolled 106 infertile and 164 unrelated healthy control individuals. Genomic DNA was extracted from the 5 ml of venous blood using the modified salting-out method. A polymerase chain reaction-amplified exon 10 of FSHR and purified PCR products were sequenced on an ABI 3730XL DNA sequencer. The data were analyzed statistically. RESULTS We found that the presence of rare allele "G" and heterozygous and common homozygous genotypes significantly increased the risk of female infertility. No significant change in the FSHR 191756 G >A genotype frequency was observed, regardless of chromosomal integrity. The genotype frequency distribution of locus 680 was consistent with the Hardy-Weinberg Equilibrium (HWE) in both groups (P > 0.05). CONCLUSION No significant differences were found in allelic variants frequency and genotype distribution between each category of subjects when analyzing the FSHR SNPs in the exonic region (P value >0.05). FSHR Asn680Ser polymorphisms and female infertility (P > 0.05). Variations in FSHR gene have an essential influence on ovarian function and can account for several defects of female fertility. FSHR Asn680Ser (rs6166) gene polymorphism is associated with female infertility and can be used as a relevant molecular biomarker to identify the risk of infertility in our population. This finding can be important for disease pathogenesis.
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Affiliation(s)
- Sangeeta Rai
- Department of Obstetrics and Gynecology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ashish
- Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Preeti Kumari
- Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Anup Singh
- Department of Geriatric Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Royana Singh
- Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Ganesh V, Venkatesan V, Koshy T, Reddy SN, Muthumuthiah S, Paul SFD. Association of estrogen, progesterone and follicle stimulating hormone receptor polymorphisms with in vitro fertilization outcomes. Syst Biol Reprod Med 2018; 64:260-265. [DOI: 10.1080/19396368.2018.1482030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Vijaya Ganesh
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Vettriselvi Venkatesan
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Teena Koshy
- Department of Human Genetics, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Sanjeeva Nellapalli Reddy
- Reproductive Medicine, Department of Obstetrics and Gynaecology, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Suruli Muthumuthiah
- Department of Embryology, Kanmani Fertility Centre and Institute of Biomedical Research, Chennai, India
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Huang BB, Liu XC, Qin XY, Chen J, Ren PG, Deng WF, Zhang J. Effect of High-Fat Diet on Immature Female Mice and Messenger and Noncoding RNA Expression Profiling in Ovary and White Adipose Tissue. Reprod Sci 2018; 26:1360-1372. [DOI: 10.1177/1933719118765966] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Obesity is a chronic multifactorial disease prevalent in many areas of the world and is a major cause of morbidity and mortality. In women, obesity increases the risks of both metabolic and reproductive diseases, such as diabetes and infertility. The mechanisms underlying these effects, especially in young women, are largely unknown. To explore these mechanisms, we established a high-fat diet (HFD) model of obesity in immature female mice. Microarray analysis of gene expression in ovaries and white adipose tissue identified a large number of differentially expressed genes (>1.3-fold change) in both tissues. In ovaries of the HFD group, there were 208 differentially expressed messenger RNAs (mRNAs), including 98 upregulated and 110 downregulated, and 295 differentially expressed lncRNAs (long non coding RNAs), including 63 upregulated and 232 downregulated. In white adipose tissue, there were 625 differentially expressed mRNAs, including 220 upregulated and 605 downregulated in the HFD group, and 1595 differentially expressed lncRNAs, including 1320 and 275 downregulated in the HFD group. Our results reveal significant differences between the transcriptomes of the HFD and control groups in both ovaries and white adipose tissue that provide clues to the molecular mechanisms of diet-induced female reproductive dysfunction and metabolic disorders, as well as biomarkers of risk for these disorders.
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Affiliation(s)
- Bin-bin Huang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
| | | | - Xiao-yun Qin
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jie Chen
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Pei-gen Ren
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wei-Fen Deng
- Shenzhen IVF Gynaecologic Hospital, Shenzhen, China
| | - Jian Zhang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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Leutinizing hormone/choriogonadotropin receptor and follicle stimulating hormone receptor gene variants and risk of recurrent pregnancy loss: A case control study. Meta Gene 2018. [DOI: 10.1016/j.mgene.2017.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Ramezani M, Salehnia M, Jafarabadi M. Vitrification and in vitro culture had no adverse effect on the follicular development and gene expression of stimulated human ovarian tissue. J Obstet Gynaecol Res 2018; 44:474-487. [PMID: 29316020 DOI: 10.1111/jog.13530] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 09/17/2017] [Indexed: 11/30/2022]
Abstract
AIM The study assesses the effect of the vitrification procedure on the integrity, morphology, follicular development and gene expression of stimulated human ovarian tissue after warming and two weeks of in vitro culture. METHODS Ovarian specimens were divided into non-vitrified and vitrified groups and were cultured for two weeks. Morphological analysis and immunohistochemistry were performed. The 17-β estradiol and anti-Müllerian hormone levels in collected media were assessed. Gene expression was analyzed using real-time reverse transcription polymerase chain reaction. RESULTS The morphology and immunohistochemistry of bcl-2-like protein 4 and B-cell lymphoma 2 of human stimulated ovarian tissue were similar in both groups. There was no significant difference in the percentage of normal follicles between the groups before and after in vitro culture. In spite of an increase in the percentage of growing follicles in cultured tissues compared to the non-cultured groups, the rate of normal follicles was significantly decreased in both cultured groups (P < 0.05). Gene expression was no different in vitrified tissues compared to the control; however, the expression of growth differentiation factor 9 and follicle stimulating hormone receptor genes were increased and factor in germ line alpha and kit ligand genes were decreased during in vitro culture (P < 0.05). In the two cultured groups, the level of 17-β estradiol was increased (P < 0.05), but the anti-Müllerian hormone concentration was not statistically altered. CONCLUSIONS These results showed that the integrity of stimulated human ovarian tissue after vitrification/warming was well preserved; however, the in vitro culture condition needs improvement.
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Affiliation(s)
- Mahdi Ramezani
- Department of Anatomical Sciences, Medical Sciences Faculty, Tarbiat Modares University, Tehran, Iran
| | - Mojdeh Salehnia
- Department of Anatomical Sciences, Medical Sciences Faculty, Tarbiat Modares University, Tehran, Iran
| | - Mina Jafarabadi
- Reproductive Health Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Al-Turki HA. Dehydroepiandrosterone supplementation in women undergoing assisted reproductive technology with poor ovarian response. A prospective case-control study. J Int Med Res 2017; 46:143-149. [PMID: 28758852 PMCID: PMC6011324 DOI: 10.1177/0300060517720005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objective The effects of dehydroepiandrosterone (DHEA) supplementation in Saudi Arabian women with poor ovarian response (POR) is presently unknown. The present study aimed to assess the benefits of DHEA supplementation in women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). Methods This was a prospective case-control study involving 62 women who were diagnosed with POR and underwent IVF/ICSI between January 2012 and June 2016. The positive influence of DHEA in 34 women, compared with 28 women without supplementation, was defined as improvements in the number of oocytes retrieved, the fertilization rate, the number of grade I embryos generated and the pregnancy rate. Results Both groups were evenly matched for age, body mass index and laboratory test parameters. There were statistically significant differences between the groups with and without DHEA supplementation for oocyte yield (6.35 ± 2.41 versus 3.98 ± 3.2), Grade I embryos generated (55% versus 30%), positive pregnancy rate (21/34 versus 10/28), and live birth rate (18/34 versus 4/28). Conclusion DHEA supplementation in women with POR had a positive effect on hormonal profiles, the quality of the endometrium, the number of oocytes retrieved, the quality of embryos, and the pregnancy and live birth rates.
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Affiliation(s)
- Haifa A Al-Turki
- Associate Professor of Infertility and Reproductive Medicine and Consultant Obstetrician and Gynecologist, Department of Obstetrics and Gynecology, College of Medicine, Imam AbdulRahman Bin Faisal University, Dammam and King Fahd Hospital of the University, Al-Khobar, Saudi Arabia
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Abstract
SummaryGonadotropins are the key regulators of ovarian follicles development. They are applied in therapeutic practice in assisted reproductive technology clinics. In the present review we discuss the basic gonadotropic hormones – recombinant human follicle-stimulating hormone, its derivatives, luteinizing hormone and gonadotropin serum of pregnant mares, their origin, and application in ovarian follicle systems inin vitroculture systems.
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Genetics of gonadotropins and their receptors as markers of ovarian reserve and response in controlled ovarian stimulation. Best Pract Res Clin Obstet Gynaecol 2017; 44:15-25. [PMID: 28506471 DOI: 10.1016/j.bpobgyn.2017.04.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/03/2017] [Accepted: 04/01/2017] [Indexed: 01/11/2023]
Abstract
Several controlled ovarian stimulation (COS) protocols have been developed to increase the yield of mature oocytes retrieved in assisted reproductive techniques (ARTs). The ovarian reserve (OR) influences the COS response, and it represents the main parameter that helps clinicians in refining clinical treatments in the perspective of a "personalized" ART. This approach is even more needed in particular conditions such as poor OR or polycystic ovary syndrome. Follicle-stimulating hormone, luteinizing hormone, and human chorionic gonadotropin are currently used in COS at different combinations and with different efficacies, even if the best approach definition is controversial. Differences in individual-specific ovarian response to gonadotropin stimulation can be due to alterations of genes encoding for hormones or their receptors. In particular, FSHB c.-211G>T, FSHR p.Asn680Ser, and c.-29G>A SNP allelic combinations may be used as OR and COS response markers. The purpose of this review is to highlight the evidence-based relevance of mutations and polymorphisms in gonadotropins and their receptor genes as predictive markers of OR and COS response to achieve fine-tuned therapeutic regimens.
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Abolaji AO, Adedara IA, Abajingin AO, Fatunmibi OJ, Ladipo EO, Farombi EO. Evidence of oxidative damage and reproductive dysfunction accompanying 4-vinylcyclohexene diepoxide exposure in female Wistar rats. Reprod Toxicol 2016; 66:10-19. [DOI: 10.1016/j.reprotox.2016.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 09/02/2016] [Accepted: 09/15/2016] [Indexed: 12/20/2022]
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TGF-β signaling controls FSHR signaling-reduced ovarian granulosa cell apoptosis through the SMAD4/miR-143 axis. Cell Death Dis 2016; 7:e2476. [PMID: 27882941 PMCID: PMC5260897 DOI: 10.1038/cddis.2016.379] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/09/2016] [Accepted: 10/17/2016] [Indexed: 01/13/2023]
Abstract
Follicle-stimulating hormone receptor (FSHR) and its intracellular signaling control mammalian follicular development and female infertility. Our previous study showed that FSHR is downregulated during follicular atresia of porcine ovaries. However, its role and regulation in follicular atresia remain unclear. Here, we showed that FSHR knockdown induced porcine granulosa cell (pGC) apoptosis and follicular atresia, and attenuated the levels of intracellular signaling molecules such as PKA, AKT and p-AKT. FSHR was identified as a target of miR-143, a microRNA that was upregulated during porcine follicular atresia. miR-143 enhanced pGC apoptosis by targeting FSHR, and reduced the levels of intracellular signaling molecules. SMAD4, the final molecule in transforming growth factor (TGF)-β signaling, bound to the promoter and induced significant downregulation of miR-143 in vitro and in vivo. Activated TGF-β signaling rescued miR-143-reduced FSHR and intracellular signaling molecules, and miR-143-induced pGC apoptosis. Overall, our findings offer evidence to explain how TGF-β signaling influences and FSHR signaling for regulation of pGC apoptosis and follicular atresia by a specific microRNA, miR-143.
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Association of a promoter polymorphism in FSHR with ovarian reserve and response to ovarian stimulation in women undergoing assisted reproductive treatment. Reprod Biomed Online 2016; 33:391-7. [PMID: 27448492 DOI: 10.1016/j.rbmo.2016.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 06/01/2016] [Accepted: 06/07/2016] [Indexed: 11/23/2022]
Abstract
Previous studies have suggested an association between a variant in the promoter region of the FSHR gene and diminished response to controlled ovarian hyperstimulation (COH) in women undergoing assisted reproduction. FSHR -29G>A was genotyped in 559 women undergoing their first cycle of COH for IVF/intracytoplasmic sperm injection (ICSI) using TaqMan allelic discrimination assay. Correlation and regression analysis was performed to assess the relationship between FSHR promoter genotypes and markers of ovarian reserve and measures of response to COH, including the number of oocytes retrieved, gonadotrophin dose used and the live-birth rate. There were no statistically significant differences between the genotype frequencies and the markers of ovarian reserve or the early measures of response to COH. However, the live-birth rate was higher for women carrying the variant A allele (odds ratio [OR] 1.37; 95% confidence interval [CI] 1.02-1.84 per allele). This relationship did not reach statistical significance after adjustment for the number of embryos transferred (OR 1.33; 95% CI 0.98-1.83 per allele). Results from this study do not provide evidence that the FSHR -29G>A variant can be used in the individualization of the treatment protocol for women undergoing IVF/ICSI.
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