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Latifimehr M, Rastegari AA, Zamani Z, Fard-Esfahani P, Nazari L. Association of histidine-rich glycoprotein C633T single nucleotide polymorphism and recurrent miscarriage in Iranian women. Mol Biol Rep 2024; 51:793. [PMID: 39001985 DOI: 10.1007/s11033-024-09758-1] [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: 05/06/2024] [Accepted: 06/25/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND Recurrent miscarriage (RM) is defined as the occurrence of at least two or three subsequent miscarriages within the 20th -24th weeks of pregnancy. The primary objective of this study was to investigate whether histidine-rich glycoprotein C633T single nucleotide polymorphism (HRG C633T SNP) statistically correlates with the occurrence of RM among Iranian women. METHODS AND RESULTS Blood samples from 200 women were taken at the outset of the study. Then, the blood samples of 100 women who had a record of RM (case group) were compared with the other 100 women's blood samples who had no record of RM (control group). Following DNA extraction, the polymorphism of histidine-rich glycoprotein C633T (HRG C633T) for every case was specified and all women were genotyped by the amplification-refractory mutation system (ARMS) method. The results of the study revealed that there was a statistically significant difference between T/T genotype (OR = 3.5, CI (1.39-8.77), p = 0.007), and C/T genotype (OR = 1.83, CI (0.99-3.37), p = 0.05) in the case and control groups. Also, a statistically significant association was observed in T allelic frequency in the RM participants compared to the control group (OR = 2.01, CI (1.31-3.09), p = 0.01). CONCLUSIONS The present study determined that there was a statistically significant relationship between HRG C633T SNP and increased RM regarding allelic and genotypical aspects. Moreover, it became apparent that women with homozygous T/T genotype were more susceptible to the risk of RM.
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Affiliation(s)
- Mahbobeh Latifimehr
- Department of Molecular and Cell Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Ali Asghar Rastegari
- Department of Molecular and Cell Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran.
| | - Zahra Zamani
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | | | - Leila Nazari
- Department of Obstetrics and Gynecology Preventative Gynecology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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2
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Methorst C, Faix A, Huyghe E. [Medical treatments for male infertility]. Prog Urol 2023; 33:653-680. [PMID: 38012910 DOI: 10.1016/j.purol.2023.09.019] [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: 08/22/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Treatments to stimulate spermatogenesis and antioxidant food supplements are often offered to infertile patients either before sperm extraction surgery to improve results, or as part of medically assisted reproduction or spontaneous fertility to increase the likelihood of a live birth. METHODS A bibliographic search limited to English-language literature on men published before 5/2023 was carried out, including clinical trials, literature reviews and meta-analyses on spermatogenesis-stimulating molecules and antioxidant treatments. RESULTS Several medical treatments seem capable of improving male fertility: they act mainly by stimulating spermatogenesis through hormones, or by reducing the effects of oxidative stress. With regard to oligoasthenozoospermia, the literature shows that certain hormonal treatments stimulating spermatogenesis are useful. In the case of non-obstructive azoospermia, the value of treatment depends on the patient's FSH and testosterone levels. AOX supplementation appears to improve certain spermogram parameters and have an impact on pregnancy and live birth rates. CONCLUSION This review should help urologists gain a better understanding of the various medical treatments and enable them to define an appropriate therapeutic strategy, tailored to the patient and the couple, in order to obtain the best results.
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Affiliation(s)
- C Methorst
- Service de médecine de la reproduction, hôpital des 4-villes, Saint-Cloud, France
| | - A Faix
- Clinique Saint-Roch, 560 avenue du Colonel-Pavelet-dit-Villars 34000 Montpellier, France
| | - E Huyghe
- Département d'urologie, hôpital de Rangueil, CHU de Toulouse, Toulouse, France; Service de médecine de la reproduction, hôpital Paule-de-Viguier, CHU de Toulouse, Toulouse, France; UMR DEFE, Inserm 1203, université de Toulouse, université de Montpellier, Montpellier, France.
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3
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Muko R, Sunouchi T, Urayama S, Toishi Y, Kusano K, Sato H, Muranaka M, Shin T, Oikawa MA, Ojima Y, Ali M, Nomura Y, Matsuda H, Tanaka A. Unique insertion/deletion polymorphisms within histidine-rich region of histidine-rich glycoprotein in Thoroughbred horses. Sci Rep 2023; 13:300. [PMID: 36609619 PMCID: PMC9822902 DOI: 10.1038/s41598-023-27374-0] [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: 08/17/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023] Open
Abstract
Histidine-rich glycoprotein (HRG) is abundant plasma protein with various effects on angiogenesis, coagulation, and immune responses. Previously, we identified the base and amino acid sequences of equine HRG (eHRG) and revealed that eHRG regulates neutrophil functions. In this study, we first conducted a large-scale gene analysis with DNA samples extracted from 1700 Thoroughbred horses and identified unique insertion/deletion polymorphisms in the histidine-rich region (HRR) of eHRG. Here we report two types of polymorphisms (deletion type 1 [D1] and deletion type 2 [D2]) containing either a 45 bp or 90 bp deletion in the HRR of eHRG, and five genotypes of eHRG (insertion/insertion [II], ID1, ID2, D1D1, and D1D2) in Thoroughbred horses. Allele frequency of I, D1, and D2, was 0.483, 0.480, and 0.037 and the incidence of each genotype was II: 23.4%, ID1: 46.2%, ID2: 3.6%, D1D1: 23.1%, and D1D2: 3.7%, respectively. The molecular weights of each plasma eHRG protein collected from horses with each genotype was detected as bands of different molecular size, which corresponded to the estimated amino acid sequence. The nickel-binding affinity of the D1 or D2 deletion eHRG was reduced, indicating a loss of function at the site. eHRG proteins show a variety of biological and immunological activities in vivo, and HRR is its active center, suggesting that genetic polymorphisms in eHRG may be involved in the performance in athletic ability, productivity, and susceptibility to infectious diseases in Thoroughbred horses.
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Affiliation(s)
- Ryo Muko
- grid.136594.c0000 0001 0689 5974Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Tomoya Sunouchi
- grid.136594.c0000 0001 0689 5974Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509 Japan
| | - Shuntaro Urayama
- grid.482817.00000 0001 0710 998XRace Horse Clinic, Ritto Training Center, Japan Racing Association, Shiga, Japan
| | - Yuko Toishi
- Shadai Stallion Station, Shadai Corporation, Hokkaido, Japan
| | - Kanichi Kusano
- grid.482817.00000 0001 0710 998XRace Horse Clinic, Ritto Training Center, Japan Racing Association, Shiga, Japan
| | - Hiroaki Sato
- grid.482817.00000 0001 0710 998XRace Integrity Section, Stewards Department, Japan Racing Association, Tokyo, Japan
| | - Masanori Muranaka
- grid.482817.00000 0001 0710 998XRace Horse Clinic, Ritto Training Center, Japan Racing Association, Shiga, Japan
| | - Taekyun Shin
- grid.411277.60000 0001 0725 5207Department of Veterinary Anatomy, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, South Korea
| | - Masa-aki Oikawa
- grid.507451.20000 0004 7662 6210Diagnostic Laboratory, Equine Veterinary Medical Center, Education City, Doha, Qatar
| | - Yoshinobu Ojima
- grid.136594.c0000 0001 0689 5974Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Mohammad Ali
- grid.507451.20000 0004 7662 6210Diagnostic Laboratory, Equine Veterinary Medical Center, Education City, Doha, Qatar
| | - Yoshihiro Nomura
- grid.136594.c0000 0001 0689 5974Scleroprotein and Leather Research Institute, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Hiroshi Matsuda
- grid.136594.c0000 0001 0689 5974Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509 Japan
| | - Akane Tanaka
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Tokyo, Japan. .,Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan. .,Cooperative Major in Advanced Health Science, Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan.
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4
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Pathway Analysis of Genome Wide Association Studies (GWAS) Data Associated with Male Infertility. REPRODUCTIVE MEDICINE 2022. [DOI: 10.3390/reprodmed3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Infertility is a common condition affecting approximately 10–20% of the reproductive age population. Idiopathic infertility cases are thought to have a genetic basis, but the underlying causes are largely unknown. However, the genetic basis underlying male infertility in humans is only partially understood. The Purpose of the study is to understand the current state of research on the genetics of male infertility and its association with significant biological mechanisms. Results: We performed an Identify Candidate Causal SNPs and Pathway (ICSN Pathway) analysis using a genome-wide association study (GWAS) dataset, and NCBI-PubMed search which included 632 SNPs in GWAS and 451 SNPs from the PubMed server, respectively. The ICSN Pathway analysis produced three hypothetical biological mechanisms associated with male infertility: (1) rs8084 and rs7192→HLA-DRA→inflammatory pathways and cell adhesion; rs7550231 and rs2234167→TNFRSF14→TNF Receptor Superfamily Member 14→T lymphocyte proliferation and activation; rs1105879 and rs2070959→UGT1A6→UDP glucuronosyltransferase family 1 member A6→Metabolism of Xenobiotics, androgen, estrogen, retinol, and carbohydrates. Conclusions: We believe that our results may be helpful to study the genetic mechanisms of male infertility. Pathway-based methods have been applied to male infertility GWAS datasets to investigate the biological mechanisms and reported some novel male infertility risk pathways. This pathway analysis using GWAS dataset suggests that the biological process related to inflammation and metabolism might contribute to male infertility susceptibility. Our analysis suggests that genetic contribution to male infertility operates through multiple genes affecting common inflammatory diseases interacting in functional pathways.
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Tharakan T, Corona G, Foran D, Salonia A, Sofikitis N, Giwercman A, Krausz C, Yap T, Jayasena CN, Minhas S. OUP accepted manuscript. Hum Reprod Update 2022; 28:609-628. [PMID: 35526153 PMCID: PMC9434299 DOI: 10.1093/humupd/dmac016] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 02/24/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The beneficial effects of hormonal therapy in stimulating spermatogenesis in patients with non-obstructive azoospermia (NOA) and either normal gonadotrophins or hypergonadotropic hypogonadism prior to surgical sperm retrieval (SSR) is controversial. Although the European Association of Urology guidelines state that hormone stimulation is not recommended in routine clinical practice, a significant number of patients undergo empiric therapy prior to SSR. The success rate for SSR from microdissection testicular sperm extraction is only 40–60%, thus hormonal therapy could prove to be an effective adjunctive therapy to increase SSR rates. OBJECTIVE AND RATIONALE The primary aim of this systematic review and meta-analysis was to compare the SSR rates in men with NOA (excluding those with hypogonadotropic hypogonadism) receiving hormone therapy compared to placebo or no treatment. The secondary objective was to compare the effects of hormonal therapy in normogonadotropic and hypergonadotropic NOA men. SEARCH METHODS A literature search was performed using the Medline, Embase, Web of Science and Clinicaltrials.gov databases from 01 January 1946 to 17 September 2020. We included all studies where hormone status was confirmed. We excluded non-English language and animal studies. Heterogeneity was calculated using I2 statistics and risk of bias was assessed using Cochrane tools. We performed a meta-analysis on all the eligible controlled trials to determine whether hormone stimulation (irrespective of class) improved SSR rates and also whether this was affected by baseline hormone status (hypergonadotropic versus normogonadotropic NOA men). Sensitivity analyses were performed when indicated. OUTCOMES A total of 3846 studies were screened and 22 studies were included with 1706 participants. A higher SSR rate in subjects pre-treated with hormonal therapy was observed (odds ratio (OR) 1.96, 95% CI: 1.08–3.56, P = 0.03) and this trend persisted when excluding a study containing only men with Klinefelter syndrome (OR 1.90, 95% CI: 1.03–3.51, P = 0.04). However, the subgroup analysis of baseline hormone status demonstrated a significant improvement only in normogonadotropic men (OR 2.13, 95% CI: 1.10–4.14, P = 0.02) and not in hypergonadotropic patients (OR 1.73, 95% CI: 0.44–6.77, P = 0.43). The literature was at moderate or severe risk of bias. WIDER IMPLICATIONS This meta-analysis demonstrates that hormone therapy is not associated with improved SSR rates in hypergonadotropic hypogonadism. While hormone therapy improved SSR rates in eugonadal men with NOA, the quality of evidence was low with a moderate to high risk of bias. Therefore, hormone therapy should not be routinely used in men with NOA prior to SSR and large scale, prospective randomized controlled trials are needed to validate the meta-analysis findings.
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Affiliation(s)
- Tharu Tharakan
- Correspondence address. Department of Urology, Imperial Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK. Tel: +44-020-3311-1234; E-mail:
| | - Giovanni Corona
- Endocrinology Unit, Medical Department, Azienda Usl Bologna Maggiore-Bellaria Hospital, Bologna, Italy
| | - Daniel Foran
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Andrea Salonia
- Department of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- Department of Urology, University Vita-Salute San Raffaele, Milan, Italy
| | - Nikolaos Sofikitis
- Department of Urology, Ioannina University School of Medicine, Ioannina, Greece
| | | | - Csilla Krausz
- Department of Experimental and Clinical Biomedical Sciences, University Hospital of Careggi (AOUC), University of Florence, Florence, Italy
| | - Tet Yap
- Department of Urology, Guy’s and St Thomas’ Hospital, London, UK
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Tao L, Wang X, Zhong Y, Liu Q, Xia Q, Chen S, He X, Di R, Chu M. Combined approaches identify known and novel genes associated with sheep litter size and non-seasonal breeding. Anim Genet 2021; 52:857-867. [PMID: 34494299 DOI: 10.1111/age.13138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2021] [Indexed: 01/29/2023]
Abstract
Improvement of ewe reproduction is considerable by appropriately increasing litter size and sustaining non-seasonal breeding. However, their genetic makeups have not been entirely elucidated. Genome-wide analyses of 821 individuals were performed by combining three genomic approaches (genome-wide association study, XP-nSL, and runs of homozygosity). Consequently, 35 candidate genes including three domestication genes (TSHR, GTF2A1, and KITLG) were identified. Other than the FecB mutation at BMPR1B, we described a significant association of a missense mutation rs406686139 at seasonal lambing-associated TSHR gene with litter size. Some promising novel genes may be relevant for sheep reproduction by multitude biological processes, such as FETUB functioning in fertilization, HNRNPA1 in oogenesis, DCUN1D1 in spermatogenesis, and HRG in fertility outcome. The present study suggests that improvement of ewe reproduction is attributed to selective breeding, and casts light on the genetic basis and improvement of sheep reproduction.
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Affiliation(s)
- Lin Tao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiangyu Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yingjie Zhong
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qiuyue Liu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Qing Xia
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Si Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiaoyun He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Ran Di
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
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7
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Sato Y, Tajima A, Kiguchi M, Kogusuri S, Fujii A, Sato T, Nozawa S, Yoshiike M, Mieno M, Kojo K, Uchida M, Tsuchiya H, Yamasaki K, Imoto I, Iwamoto T. Genome-wide association study of semen volume, sperm concentration, testis size, and plasma inhibin B levels. J Hum Genet 2020; 65:683-691. [PMID: 32341457 DOI: 10.1038/s10038-020-0757-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 11/09/2022]
Abstract
Semen quality is affected by environmental factors, endocrine function abnormalities, and genetic factors. A GWAS recently identified ERBB4 at 2q34 as a genetic locus associated with sperm motility. However, GWASs for human semen volume and sperm concentration have not been conducted. In addition, testis size also reportedly correlates with semen quality, and it is important to identify genes that affect testis size. Reproductive hormones also play an important role in spermatogenesis. To date, genetic loci associated with plasma testosterone, sex hormone-binding globulin (SHBG), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels have been identified using GWASs. However, GWASs have not identified any relevant loci for plasma inhibin B levels. We conducted a two-stage GWAS using 811 Japanese men in a discovery stage followed by a replication stage using an additional 721 Japanese men. The results of the discovery and replication stages were combined into a meta-analysis. After setting a suggestive significance threshold for P values < 5 × 10-6 in the discovery stage, we identified ten regions with SNPs (semen volume: one, sperm concentration: three, testes size: two, and inhibin B: four). We selected only the most significant SNP in each region for replication genotyping. Combined discovery and replication results in the meta-analysis showed that the locus 12q21.31 associated with plasma inhibin B levels (rs11116724) had the most significant association (P = 5.7 × 10-8). The LRRIQ1 and TSPAN19 genes are located in the 12q21.31 region. This study provides new susceptibility variants that contribute to plasma inhibin B levels.
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Affiliation(s)
- Youichi Sato
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan.
| | - Atsushi Tajima
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Ishikawa, 920-8640, Japan.
| | - Misaki Kiguchi
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Suzu Kogusuri
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Aki Fujii
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Takehiro Sato
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Ishikawa, 920-8640, Japan
| | - Shiari Nozawa
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan
| | - Miki Yoshiike
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan
| | - Makiko Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University, Tochigi, 329-0498, Japan
| | - Kosuke Kojo
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Department of Urology, University of Tsukuba Hospital, Ibaraki, 305-8576, Japan
| | - Masahiro Uchida
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Urology department, Tsukuba Gakuen Hospital, Ibaraki, 305-0854, Japan
| | - Haruki Tsuchiya
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan
| | - Kazumitu Yamasaki
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Urology department, Tsukuba Gakuen Hospital, Ibaraki, 305-0854, Japan
| | - Issei Imoto
- Division of Molecular Genetics, Aichi Cancer Center Research Institute, Aichi, 464-8681, Japan
| | - Teruaki Iwamoto
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan.,Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Department of Male Infertility, Reproduction Center, Sanno Hospital, Tokyo, 107-0052, Japan
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8
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Kumaresan A, Johannisson A, Nordqvist S, Kårehed K, Åkerud H, Lindgren KE, Morrell JM. Relationship of DNA integrity to HRG C633T SNP and ART outcome in infertile couples. Reproduction 2017; 153:865-876. [PMID: 28356499 DOI: 10.1530/rep-17-0058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/17/2017] [Accepted: 03/29/2017] [Indexed: 11/08/2022]
Abstract
The status of sperm DNA fragmentation, protamine deficiency, free thiols and disulphide bonds in colloid-selected samples and its relationship to ART outcome or HRG C633T SNP is not known. The objective of this study was to determine these relationships in spermatozoa from men with male factor or unknown factor infertility (n = 118) undergoing in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI). Sperm DNA integrity was analysed by flow cytometry using three fluorescent probes (acridine orange, monobromobimane and chromomycin A3). Principal component analysis (PCA) was used to identify the parameters that most influenced fertility. The relationships of sperm DNA integrity with seminal parameters, HRG C633T SNP and ART outcome were established using ANOVA and t-test. Sperm concentration and yield after preparation accounted for 27% of the total variance; sperm DNA integrity (%DFI and disulphide bonds) accounted for 16% of the variance in men from infertile couples. Sperm %DFI was significantly higher (P < 0.05) in older men than in younger men. A significant difference (P < 0.01) was observed in %DFI between smokers and non-smokers. Sperm %DFI was significantly higher (P < 0.01) in male factor infertility compared to either female factor or unknown factor infertility while free thiols were significantly higher (P < 0.01) in unknown infertility factor. No significant difference was observed between IVF success/failure in any of the seminal parameters studied. There was a tendency for protamine deficiency to be higher and disulphide concentration to be lower in men with HRG 633T. Such assessments may provide additional useful information about the prognosis for ART outcome, although more research is needed before clinical guidelines can be provided.
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Affiliation(s)
- Arumugam Kumaresan
- Department of Clinical Sciences/Division of ReproductionSwedish University of Agricultural Sciences, Uppsala, Sweden.,Theriogenology LaboratoryAnimal Reproduction, Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - Anders Johannisson
- Department of Clinical Sciences/Division of ReproductionSwedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sarah Nordqvist
- Department of GeneticsImmunology and Pathology, and Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Karin Kårehed
- Department of GeneticsImmunology and Pathology, and Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Helena Åkerud
- Department of GeneticsImmunology and Pathology, Uppsala University, Uppsala, Sweden
| | - Karin E Lindgren
- Department of GeneticsImmunology and Pathology, and Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Jane M Morrell
- Department of Clinical Sciences/Division of ReproductionSwedish University of Agricultural Sciences, Uppsala, Sweden
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