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Amor H, Alkhaled Y, Bibi R, Hammadeh ME, Jankowski PM. The Impact of Heavy Smoking on Male Infertility and Its Correlation with the Expression Levels of the PTPRN2 and PGAM5 Genes. Genes (Basel) 2023; 14:1617. [PMID: 37628668 PMCID: PMC10454138 DOI: 10.3390/genes14081617] [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: 06/22/2023] [Revised: 08/05/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Smoking has been linked to male infertility by affecting the sperm epigenome and genome. In this study, we aimed to determine possible changes in the transcript levels of PGAM5 (the phosphoglycerate mutase family member 5), PTPRN2 (protein tyrosine phosphatase, N2-type receptor), and TYRO3 (tyrosine protein kinase receptor) in heavy smokers compared to non-smokers, and to investigate their association with the fundamental sperm parameters. In total, 118 sperm samples (63 heavy-smokers (G1) and 55 non-smokers (G2)) were included in this study. A semen analysis was performed according to the WHO guidelines. After a total RNA extraction, RT-PCR was used to quantify the transcript levels of the studied genes. In G1, a significant decrease in the standard semen parameters in comparison to the non-smokers was shown (p < 0.05). Moreover, PGAM5 and PTPRN2 were differentially expressed (p ≤ 0.03 and p ≤ 0.01, respectively) and downregulated in the spermatozoa of G1 compared to G2. In contrast, no difference was observed for TYRO3 (p ≤ 0.3). In G1, the mRNA expression level of the studied genes was correlated negatively with motility, sperm count, normal form, vitality, and sperm membrane integrity (p < 0.05). Therefore, smoking may affect gene expression and male fertility by altering the DNA methylation patterns in the genes associated with fertility and sperm quality, including PGAM5, PTPRN2, and TYRO3.
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Affiliation(s)
- Houda Amor
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, 66424 Homburg, Germany
| | - Yaser Alkhaled
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, 66424 Homburg, Germany
| | - Riffat Bibi
- Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad 44000, Pakistan;
| | - Mohamad Eid Hammadeh
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, 66424 Homburg, Germany
| | - Peter Michael Jankowski
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, 66424 Homburg, Germany
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Archana S, Vijayalakshmi J, Usha Rani G, Paul SFD, Reddy S, Manjula G. The comparison of Y chromosome microdeletion incidence in blood DNA and sperm cell DNA. Mol Biol Rep 2023; 50:1203-1208. [PMID: 36436077 DOI: 10.1007/s11033-022-08076-8] [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: 08/03/2022] [Accepted: 11/01/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND During gamete development and spermatogenesis, certain genes on the Y chromosome (Yq) in the Male-Specific Region (MSR) are responsible for human gametes formation. The long arm Yq is composed of both euchromatin and the genetically inactive heterochromatin regions. This region contains the Azoospermia factors AZFa, AZFb and AZFc. In the case of male infertility, microdeletions on the Yq chromosome appear to be structural chromosomal anomalies linked to sperm abnormality. METHODS The present study aimed to look at the incidence, of Asthenospermia (AS), Teratospermia (TS), Oligospermia (OS) and Oligoasthenoteratospermia (OAT) patterns of Y chromosomal microdeletions in Indian infertile men with an (AZF a, b, c). This study was conducted with 75 infertile men as cases and 75 fertile men as a control for AZF locus microdeletion utilizing sequence-tagged sites. RESULTS The AZFc region of germ cell DNA (50.6%) was the most deleted section in infertile men when compared to blood DNA (21.3%), followed by deletions in the AZFb region (21.3%) in germ cell DNA whereas blood DNA had no microdeletion in the AZFa region in both germ cell DNA and blood DNA. Infertile men displayed significant Yq microdeletion in both AZFb and also AZFc. Around 33% (25) of 75 infertile men had AZF (a, b, c) region microdeletion in blood DNA, compared to it germ cell DNA had a larger percentage of 72% (54) of Y chromosome microdeletions in the study samples. CONCLUSION A high-frequency rate of microdeletions seen in germ cell DNA. PCR-based Y chromosome microdeletion screening using germ cell DNA along with Genomic DNA might help in screening for genetic abnormality in infertile men who endure assisted reproductive technology treatments. This study might be attributable to the interplay of lifestyle and genetic factors, both contributing to the risk of developing these germ-line deletions.
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Affiliation(s)
- S Archana
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India
| | - J Vijayalakshmi
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India.
| | - G Usha Rani
- Department of Reproductive Medicine & Surgery (SMART), Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India
| | - Solomon F D Paul
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India
| | - Sanjeeva Reddy
- Department of Reproductive Medicine & Surgery (SMART), Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India
| | - G Manjula
- Department of Reproductive Medicine & Surgery (SMART), Sri Ramachandra Institute of Higher Education and Research, (DU) Porur, Chennai, Tamil Nadu, India
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Malik J, Choudhary S, Mandal SC, Sarup P, Pahuja S. Oxidative Stress and Male Infertility: Role of Herbal Drugs. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:137-159. [PMID: 36472821 DOI: 10.1007/978-3-031-12966-7_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Infertility is a universal health problem affecting 15% of couples, out of which 20-30% cases are due to male infertility. The leading causes of male infertility include hormonal defects, physical reasons, sexual problems, hazardous environment, stressful lifestyle, genetic factors, epigenetic factors, and oxidative stress. Various physiological functions involve reactive oxygen species (ROS) and nitrogen species at appropriate levels for proper smooth functioning. ROS control critical reproductive processes such as capacitation, acrosomal reaction, hyperactivation, egg penetration, and sperm head decondensation. The excessive free radicals or imbalance between ROS and endogenous antioxidant enzymes damages sperm membrane by inducing lipid peroxidation causing mitochondrial dysfunction and DNA damage that eventually lead to male infertility. Numerous synthetic products are available in the market to treat infertility problems, largely ending in side effects and repressing symptoms. Ayurveda contains a particular group of Rasayana herbs, called vajikarana, that deals with nourishment and stimulation of sexual tissues, improves male reproductive vitality, and deals with oxidative stress via antioxidant mechanism. The present study aims to describe oxidative stress and the role of herbal drugs in treating male infertility.
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Affiliation(s)
- Jai Malik
- University Institute of Pharmaceutical Sciences - UGC Centre of Advanced Study, Panjab University, Chandigarh, India.
| | - Sunayna Choudhary
- University Institute of Pharmaceutical Sciences - UGC Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Subhash C Mandal
- Pharmacognosy and Phytotherapy Research Laboratory, Department of Pharmaceutical Technology, Faculty of Engineering & Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Prerna Sarup
- Swami Vivekanand College of Pharmacy, Patiala, Punjab, India
| | - Sonia Pahuja
- Swami Vivekanand College of Pharmacy, Patiala, Punjab, India
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Rotondo JC, Lanzillotti C, Mazziotta C, Tognon M, Martini F. Epigenetics of Male Infertility: The Role of DNA Methylation. Front Cell Dev Biol 2021; 9:689624. [PMID: 34368137 PMCID: PMC8339558 DOI: 10.3389/fcell.2021.689624] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/17/2021] [Indexed: 12/18/2022] Open
Abstract
In recent years, a number of studies focused on the role of epigenetics, including DNA methylation, in spermatogenesis and male infertility. We aimed to provide an overview of the knowledge concerning the gene and genome methylation and its regulation during spermatogenesis, specifically in the context of male infertility etiopathogenesis. Overall, the findings support the hypothesis that sperm DNA methylation is associated with sperm alterations and infertility. Several genes have been found to be differentially methylated in relation to impaired spermatogenesis and/or reproductive dysfunction. Particularly, DNA methylation defects of MEST and H19 within imprinted genes and MTHFR within non-imprinted genes have been repeatedly linked with male infertility. A deep knowledge of sperm DNA methylation status in association with reduced reproductive potential could improve the development of novel diagnostic tools for this disease. Further studies are needed to better elucidate the mechanisms affecting methylation in sperm and their impact on male infertility.
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Affiliation(s)
- John Charles Rotondo
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Carmen Lanzillotti
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Chiara Mazziotta
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Mauro Tognon
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fernanda Martini
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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5
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Babakhanzadeh E, Nazari M, Ghasemifar S, Khodadadian A. Some of the Factors Involved in Male Infertility: A Prospective Review. Int J Gen Med 2020; 13:29-41. [PMID: 32104049 PMCID: PMC7008178 DOI: 10.2147/ijgm.s241099] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/23/2020] [Indexed: 01/04/2023] Open
Abstract
Infertility is defined as the inability of couples to have a baby after one year of regular unprotected intercourse, affecting 10 to 15% of couples. According to the latest WHO statistics, approximately 50-80 million people worldwide sufer from infertility, and male factors are responsible for approximately 20-30% of all infertility cases. The diagnosis of infertility in men is mainly based on semen analysis. The main parameters of semen include: concentration, appearance and motility of sperm. Causes of infertility in men include a variety of things including hormonal disorders, physical problems, lifestyle problems, psychological issues, sex problems, chromosomal abnormalities and single-gene defects. Despite numerous efforts by researchers to identify the underlying causes of male infertility, about 70% of cases remain unknown. These statistics show a lack of understanding of the mechanisms involved in male infertility. This article focuses on the histology of testicular tissue samples, the male reproductive structure, factors affecting male infertility, strategies available to find genes involved in infertility, existing therapeutic methods for male infertility, and sperm recovery in infertile men.
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Affiliation(s)
- Emad Babakhanzadeh
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Majid Nazari
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sina Ghasemifar
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Khodadadian
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Precone V, Cannarella R, Paolacci S, Busetto GM, Beccari T, Stuppia L, Tonini G, Zulian A, Marceddu G, Calogero AE, Bertelli M. Male Infertility Diagnosis: Improvement of Genetic Analysis Performance by the Introduction of Pre-Diagnostic Genes in a Next-Generation Sequencing Custom-Made Panel. Front Endocrinol (Lausanne) 2020; 11:605237. [PMID: 33574797 PMCID: PMC7872015 DOI: 10.3389/fendo.2020.605237] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/16/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Infertility affects about 7% of the general male population. The underlying cause of male infertility is undefined in about 50% of cases (idiopathic infertility). The number of genes involved in human spermatogenesis is over two thousand. Therefore, it is essential to analyze a large number of genes that may be involved in male infertility. This study aimed to test idiopathic male infertile patients negative for a validated panel of "diagnostic" genes, for a wide panel of genes that we have defined as "pre-diagnostic." METHODS We developed a next-generation sequencing (NGS) gene panel including 65 pre-diagnostic genes that were used in 12 patients who were negative to a diagnostic genetic test for male infertility disorders, including primary spermatogenic failure and central hypogonadism, consisting of 110 genes. RESULTS After NGS sequencing, variants in pre-diagnostic genes were identified in 10/12 patients who were negative to a diagnostic test for primary spermatogenic failure (n = 9) or central hypogonadism (n = 1) due to mutations of single genes. Two pathogenic variants of DNAH5 and CFTR genes and three uncertain significance variants of DNAI1, DNAH11, and CCDC40 genes were found. Moreover, three variants with high impact were found in AMELY, CATSPER 2, and ADCY10 genes. CONCLUSION This study suggests that searching for pre-diagnostic genes may be of relevance to find the cause of infertility in patients with apparently idiopathic primary spermatogenic failure due to mutations of single genes and central hypogonadism.
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Affiliation(s)
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | | | - Gian Maria Busetto
- Department of Urology, “Sapienza” University of Rome, Policlinico Umberto I, Rome, Italy
| | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Liborio Stuppia
- Department of Psychological, Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, Chieti, Italy
| | - Gerolamo Tonini
- Department of Surgery, Fondazione Poliambulanza, Brescia, Italy
| | | | | | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Matteo Bertelli
- MAGI EUREGIO, Bolzano, Italy
- MAGI’S LAB, Rovereto, Italy
- EBTNA-LAB, Rovereto, Italy
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Bonte D, Thys V, De Sutter P, Boel A, Leybaert L, Heindryckx B. Vitrification negatively affects the Ca 2+-releasing and activation potential of mouse oocytes, but vitrified oocytes are potentially useful for diagnostic purposes. Reprod Biomed Online 2019; 40:13-25. [PMID: 31740224 DOI: 10.1016/j.rbmo.2019.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/13/2019] [Accepted: 09/23/2019] [Indexed: 10/25/2022]
Abstract
RESEARCH QUESTION To what extent does vitrification affect the Ca2+-releasing and activation potential of mouse oocytes, which are commonly used to determine the oocyte activation potential of human spermatozoa? DESIGN The effect of mouse oocyte vitrification on Ca2+ dynamics and developmental competence after oocyte activation was assessed and compared with fresh mouse oocytes. Moreover, the Ca2+ store content of the endoplasmic reticulum was determined at different time points during the vitrification-warming procedure. Finally, the Ca2+ pattern induced by cryoprotectant exposure was determined. RESULTS After human sperm injection into mouse oocytes, Ca2+ dynamics but not fertilization rates were significantly altered by vitrification warming (P < 0.05). Ca2+ dynamics in response to SrCl2 or ionomycin were also altered by oocyte vitrification. In contrast, activation and blastocyst rates after SrCl2 exposure were not affected (P > 0.05), whereas activation rates after ionomycin exposure were significantly lower in vitrified-warmed oocytes (P < 0.05); blastocyst rates were not affected (P > 0.05). Cryoprotectant exposure was associated with a strong drop in endoplasmic reticulum Ca2+ store content. Oocytes rapidly recovered during warming and recovery in Ca2+-containing media; a threshold area under the curve of Ca2+ dynamics to obtain activation rates above 90% was determined. CONCLUSIONS Vitrified-warmed mouse oocytes display reduced Ca2+-releasing potential upon oocyte activation, caused by cryoprotectant exposure. With adapted classification criteria, these oocytes could be used for diagnosing oocyte activation deficiencies in patients. Evaluating the Ca2+-signalling machinery in vitrified-warmed human oocytes is required.
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Affiliation(s)
- Davina Bonte
- Ghent-Fertility and Stem cell Team (G-FaST), Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, Ghent 9000, Belgium.
| | - Vanessa Thys
- Ghent-Fertility and Stem cell Team (G-FaST), Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, Ghent 9000, Belgium
| | - Petra De Sutter
- Ghent-Fertility and Stem cell Team (G-FaST), Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, Ghent 9000, Belgium
| | - Annekatrien Boel
- Ghent-Fertility and Stem cell Team (G-FaST), Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, Ghent 9000, Belgium
| | - Luc Leybaert
- Physiology group, Department of Basic and Applied Medical Sciences, Ghent University, C. Heymanslaagn 10, GhentGhent 9000, Belgium
| | - Björn Heindryckx
- Ghent-Fertility and Stem cell Team (G-FaST), Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, Ghent 9000, Belgium
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Zhang H, Wang R, Yu Y, Zhu H, Li L, Yang X, Hu X, Liu R. Non-Robertsonian translocations involving chromosomes 13, 14, or 15 in male infertility: 28 cases and a review of the literature. Medicine (Baltimore) 2019; 98:e14730. [PMID: 30817623 PMCID: PMC6831198 DOI: 10.1097/md.0000000000014730] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
For genetic counseling of male carriers of chromosomal translocations, the specific chromosomes and breakpoints involved in the translocation are relevant to know. The structural chromosomal abnormalities may lead to abnormal sperm counts, infertility, and miscarriage. These are related to the specific chromosomes and breakpoints involved in the translocation. To date, over 200 cases of non-Robertsonian translocation in male carriers have been described that involve chromosomes 13, 14, or 15.This study reports of 28 male carriers from our clinic with balanced reciprocal translocations of chromosome 13, 14, or 15, and a literature review of 201 cases. The 28 male carriers from our clinic were diagnosed by cytogenetic analyses: 19 subjects suffered from pregestational infertility and 9 from gestational infertility. The most common translocations were t(7;13), t(10;14), and t(3;15), observed respectively in 13 (46%), 8 (29%), and 8 (29%) of our subjects. The literature cases (n = 201) involved chromosome 13 (n = 83, 41%), chromosome 14 (n = 56, 28%) or 15 (n = 62, 31%) in which 75 breakpoints were identified, the most common breakpoint, 13q22, was observed in 12 subjects (6%), followed by 14q32 (n = 11), 15q15 (n = 9), and 15q22 (n = 9). Most breakpoints were related to gestational infertility, while breakpoints at 13p13, 13p12, 13p11.2, 13p11, 13q11, 13q15, 14p12, 14p10, 15p13, 15p10, and 15q22.2 were associated with pregestational infertility.Carriers of non-Robertsonian translocations involving chromosome 13, 14, or 15 and experiencing infertility should receive counseling with regard to chromosomal breakpoints as there seem to be consequences for treatment. Intracytoplasmic sperm injection with preimplantation genetic diagnosis (PGD) for the carriers with oligozoospermia, microscopic testicular sperm extraction or sperm from the sperm bank for the carriers with azoospermia should be considered for pregestational infertility. The carriers with gestational infertility can choose PGD or prenatal diagnosis.
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Affiliation(s)
- Hongguo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Ruixue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Yang Yu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Haibo Zhu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Leilei Li
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Xiao Yang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Xiaonan Hu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Ruizhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
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Geng D, Yang X, Zhang H, Liu X, Yu Y, Jiang Y, Liu R, Zhang G. Association of single nucleotide polymorphism c.673C>A/p.Gln225Lys in SEPT12 gene with spermatogenesis failure in male idiopathic infertility in Northeast China. J Int Med Res 2018; 47:992-998. [PMID: 30488758 PMCID: PMC6381467 DOI: 10.1177/0300060518811770] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Male infertility is a complex multifactorial disease affecting approximately 10% of couples who want to have children. Some cases of infertility can be explained by genetic factors. Septins are members of the GTPase superfamily, which are involved in diverse biological processes including morphogenesis, compartmentalization, cytokinesis, and apoptosis. The septin 12 gene, SEPT12, is expressed exclusively in post-meiotic male germ cells and is considered as a critical gene for spermatogenesis. In this study, we evaluated 200 patients with non-obstructive azoospermia and detected mutations of 25 spermatogenesis-associated genes by targeted exome sequencing. We report a missense SEPT12 variant, c.673C>A/p.Gln225Lys, in an infertile man with non-obstructive azoospermia. The variation was located inside the GTPase domain and had a SIFT score of 0.02 (<0.50) and was considered to be 'probably damaging' by PolyPhen. This case may provide clues to help establish the relationship between SEPT12 gene alterations and some cases of idiopathic male infertility. The role of this variant should thus be investigated further.
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Affiliation(s)
- Dongfeng Geng
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiao Yang
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongguo Zhang
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaojun Liu
- 2 Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Yang Yu
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yuting Jiang
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Ruizhi Liu
- 1 Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun, Jilin, China.,*These authors contributed equally to this work
| | - Guirong Zhang
- 2 Peking Medriv Academy of Genetics and Reproduction, Peking, China.,*These authors contributed equally to this work
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Abstract
The skeleton shows an unconventional role in the physiology and pathophysiology of the human organism, not only as the target tissue for a number of systemic hormones, but also as endocrine tissue modulating some skeletal and extraskeletal systems. From this point of view, the principal cells in the skeleton are osteocytes. These cells primarily work as mechano-sensors and modulate bone remodeling. Mechanically unloaded osteocytes synthetize sclerostin, the strong inhibitor of bone formation and RANKL, the strong activator of bone resorption. Osteocytes also express hormonally active vitamin D (1,25(OH)2D) and phosphatonins, such as FGF23. Both 1,25(OH)2D and FGF23 have been identified as powerful regulators of the phosphate metabolism, including in chronic kidney disease. Further endocrine cells of the skeleton involved in bone remodeling are osteoblasts. While FGF23 targets the kidney and parathyroid glands to control metabolism of vitamin D and phosphates, osteoblasts express osteocalcin, which through GPRC6A receptors modulates beta cells of the pancreatic islets, muscle, adipose tissue, brain and testes. This article reviews some knowledge concerning the interaction between the bone hormonal network and phosphate or energy homeostasis and/or male reproduction.
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Affiliation(s)
- I. ZOFKOVA
- Institute of Endocrinology, Prague, Czech Republic
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11
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Zhang X, Zhang H, Hu C, Wang R, Xi Q, Liu R. Clinical features of carriers of reciprocal chromosomal translocations involving chromosome 2: report of nine cases and review of the literature. Int Braz J Urol 2018; 44:785-793. [PMID: 29219278 PMCID: PMC6092653 DOI: 10.1590/s1677-5538.ibju.2017.0233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 09/06/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To explore the clinical features of carriers of chromosome 2 translocations, enabling informed genetic counseling of these patients. MATERIALS AND METHODS Eighty-two male carriers of a translocation who were infertile or receiving fertility counseling were recruited. Cytogenetic analyses were performed using G-banding. A search of PubMed was performed to determine whether the identified translocations on chromosome 2 are involved in male infertility. The relationships of translocation breakpoints with male infertility and recurrent pregnancy loss were analyzed. RESULTS Of the 82 translocation carriers, 9 (11%) were carriers of a chromosome 2 translocation. Four cases had oligozoospermia or infertility, while five had normal semen. In an analysis of the literature, 55 patients who were carriers of chromosome 2 translocations were also reviewed. Breakpoints at 2p13 and 2q31 were observed in six patients each, and were the most common. Breakpoints at 2p23, 2p13, 2p11.2, 2q31, and 2q37 were associated to both pre-gestational and gestational infertility, while other breakpoints were associated with gestational infertility. CONCLUSIONS All breakpoints at chromosome 2 were correlated with gestational infertility. Carriers of chromosome 2 translocations should therefore receive counseling to continue with natural conception and use of different technologies available via assisted reproductive technology, such as preimplantation genetic diagnosis.
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Affiliation(s)
- Xinyue Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Hongguo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Cong Hu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Ruixue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Qi Xi
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Ruizhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
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Yang X, Zhang H, Yu Y, Zhu H, Hu X, Jiang Y, Wang R, Liu R. Clinical Features of Chromosome 6 Translocation in Male Carriers: A Report of 10 Cases and Review of the Literature. Med Sci Monit 2018; 24:4162-4168. [PMID: 29911662 PMCID: PMC6038718 DOI: 10.12659/msm.911170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/06/2018] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The literature indicates that chromosome 6 is involved in balanced translocation and is involved in reproductive failure. This aim of this study was to explore the clinical features of chromosome 6 translocation in male carriers. MATERIAL AND METHODS We identified 10 patients who were carriers of chromosome 6 translocations and excluded the patients with varicocele, ejaculatory duct obstruction, and the other cause of infertility. The karyotype was analyzed using G-banding. A search for translocations on chromosome 6 involved in male infertility was performed using PubMed. We included cases of balanced chromosome 6 translocations involving adult men of fertile age and excluded those cases of live-born children, or those without breakpoints involving chromosome 6, or those with complex chromosomal translocations or chimeras. RESULTS All 10 patients underwent genetic counseling for infertility. Semen analysis showed that 1 case had azoospermia, while 9 cases exhibited normal semen criteria. The respective partners of the 9 cases with normal semen parameters had a tendency to miscarry: 3 experienced spontaneous and induced abortion because of abnormal embryos; 3 experienced 3 incidents of spontaneous abortion, 2 experienced double spontaneous abortion, and 1 experienced biochemical pregnancy on 3 occasions. Most of the chromosome 6 breakpoints in translocation carriers obtained by the PubMed search were associated with spontaneous abortion. CONCLUSIONS Chromosome translocations involving chromosome 6 influence fertility status and lead to increased risk of miscarriage. Cytogenetic screening before opting for assisted reproductive technology and the breakpoints of chromosome 6 translocation should be considered for infertile male carriers.
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Wang XM, Xiang Z, Fu Y, Wu HL, Zhu WB, Fan LQ. Comparative Proteomics Reveal the Association between SPANX Proteins and Clinical Outcomes of Artificial Insemination with Donor Sperm. Sci Rep 2018; 8:6850. [PMID: 29717166 PMCID: PMC5931513 DOI: 10.1038/s41598-018-25032-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 04/10/2018] [Indexed: 12/12/2022] Open
Abstract
Semen analysis is used for diagnosing male infertility and evaluating male fertility for more than a century. However, the semen analysis simply represents the population characteristics of sperm. It is not a comprehensive assessment of the male reproductive potential. In this study, 20 semen samples from human sperm bank with distinctive artificial insemination with donor sperm (AID) clinical outcomes were collected and analyzed using a two-dimensional differential in-gel electrophoresis (2D-DIGE); 45 differentially expressed protein spots were obtained, and 26 proteins were identified. Most differentially expressed proteins were related to sperm motility, energy consumption, and structure. These identified proteins included several sperm proteins associated with the nucleus on the X chromosome (SPANX) proteins. This prospective study aimed to investigate the association between the expression levels of SPANX proteins and the AID clinical outcomes. The proteins identified in this study provided a reference for the molecular mechanism of sperm fertility and revealed a predictive value of the SPANX proteins.
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Affiliation(s)
- X M Wang
- Institute of Reproductive & Stem Cell Engineering, School of Basic Medicine Science, Central South University, Changsha, China
| | - Z Xiang
- Shenzhen Armed Police Hospital Reproductive Center, Shenzhen, China
| | - Y Fu
- Medical center for Human Reproduction, Beijing Chao-yang Hospital affiliated to Capital Medical University, Beijing, China
| | - H L Wu
- Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - W B Zhu
- Institute of Reproductive & Stem Cell Engineering, School of Basic Medicine Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - L Q Fan
- Institute of Reproductive & Stem Cell Engineering, School of Basic Medicine Science, Central South University, Changsha, China. .,Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, China.
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Sha Y, Zheng L, Ji Z, Mei L, Ding L, Lin S, Wang X, Yang X, Li P. A novel TEX11 mutation induces azoospermia: a case report of infertile brothers and literature review. BMC MEDICAL GENETICS 2018; 19:63. [PMID: 29661171 PMCID: PMC5902858 DOI: 10.1186/s12881-018-0570-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 03/23/2018] [Indexed: 12/13/2022]
Abstract
Background Testis-expressed gene 11 (TEX11) is an X-linked gene and essential for meiotic recombination and chromosomal synapsis. TEX11 deficiency causes meiotic arrest and male infertility, and many TEX11 mutations have been found in azoospermic and infertile men. Case presentation This study reported one novel TEX11 mutation (2653G → T, in exon 29, GenBank accession number, NM_031276) in two brothers with azoospermia. This mutation was firstly screened out by whole-exome sequencing (WES) and further verified by amplifying and sequencing the specific exon 29. Surprisingly, the same exonic missense mutation (W856C) was observed in two brothers but not in their mother. Histological analysis of testicular biopsy from both brothers revealed meiotic arrest and no post-meiotic round spermatids and mature spermatozoa were observed in the seminiferous tubules. TEX11 expression was observed strongly in spermatogonia and weakly in spermatocytes, but not in Sertoli cells and interstitial cells. Conclusions We identified one novel TEX11 mutation in two brothers and summarized the literature regarding TEX11 mutations and male infertility. This study and previous literature indicate that TEX11 mutations are closely associated with male infertility, especially azoospermia, although auxiliary clinical analyses are needed to figure out the causes of male infertility.
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Affiliation(s)
- Yanwei Sha
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Liangkai Zheng
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Zhiyong Ji
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Libin Mei
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Lu Ding
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Shaobin Lin
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Xu Wang
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China
| | - Xiaoyu Yang
- Department of Reproductive Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China.
| | - Ping Li
- Reproductive Medicine Center, Xiamen Women's and Children's Health Hospital, Xiamen, 361003, Fujian Province, China.
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Zhang HG, Wang RX, Pan Y, Zhang H, Li LL, Zhu HB, Liu RZ. A report of nine cases and review of the literature of infertile men carrying balanced translocations involving chromosome 5. Mol Cytogenet 2018; 11:10. [PMID: 29416565 PMCID: PMC5785882 DOI: 10.1186/s13039-018-0360-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/16/2018] [Indexed: 12/21/2022] Open
Abstract
Background Balanced translocations may cause the loss of genetic material at the breakpoints and may result in failure of spermatogenesis. However, carriers of reciprocal translocation may naturally conceive. Genetic counseling of male carriers of translocations remains challenging. This study explores the clinical features of carriers of chromosome 5 translocations, enabling informed genetic counseling of these patients. Results Of 82 translocation carriers, 9 (11%) were carriers of a chromosome 5 translocation. One case had azoospermia, while three cases had experienced recurrent spontaneous abortions, two cases had each experienced stillbirth, and three cases produced a phenotypically normal child confirmed by amniocentesis. A literature review identified 106 patients who carried chromosome 5 translocations. The most common chromosome 5 translocation was t(4,5), observed in 13 patients. Breakpoint at 5p15 was observed in 11 patients. All breakpoints at chromosome 5 were associated with gestational infertility. Conclusion In genetic counseling, physicians should consider chromosome 5 and its breakpoints. Carriers of chromosome 5 translocations may continue with natural conception or use assisted reproductive technologies, such as preimplantation genetic diagnosis.
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Affiliation(s)
- Hong-Guo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Rui-Xue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Yuan Pan
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Han Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Lei-Lei Li
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Hai-Bo Zhu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Rui-Zhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
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Sertoli cell specific knockdown of RAR-related orphan receptor (ROR) alpha at puberty reduces sperm count in rats. Gene 2018; 641:18-24. [DOI: 10.1016/j.gene.2017.10.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 08/28/2017] [Accepted: 10/11/2017] [Indexed: 12/20/2022]
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Association of a TDRD1 variant with spermatogenic failure susceptibility in the Han Chinese. J Assist Reprod Genet 2016; 33:1099-104. [PMID: 27233649 PMCID: PMC4974230 DOI: 10.1007/s10815-016-0738-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 05/13/2016] [Indexed: 01/24/2023] Open
Abstract
PURPOSE Piwi-interacting RNAs (piRNAs) are a broad group of noncoding small RNAs that have important biological functions in germline cells and can maintain genome integrity via silencing of retrotransposons. In this study, we aimed to explore the associations between genetic variants of important genes involved in piRNA biogenesis and male infertility with spermatogenic impairment. METHODS To this end, five single-nucleotide polymorphisms (SNPs) in the ASZ1, PIWIL1, TDRD1, and TDRD9 genes were genotyped by TaqMan allelic discrimination assays in 342 cases of nonobstructive azoospermia (NOA) and 493 controls. RESULTS The SNP rs77559927 in TDRD1 was associated with a reduced risk of spermatogenic impairment. The genotypes TC and TC + CC showed odds ratios and 95 % confidence intervals of 0.73 (0.55-0.98, P = 0.034) and 0.73 (0.56-0.97, P = 0.030), respectively, in patients with NOA compared with those in the controls. CONCLUSION Thus, our results provided the first epidemiological evidence supporting the involvement of TDRD1 genetic polymorphisms in piRNA processing genes in determining the risk of spermatogenic impairment in a Han Chinese population.
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Wang S, Huang G, Hu Q, Zou Q. A network-based method for the identification of putative genes related to infertility. Biochim Biophys Acta Gen Subj 2016; 1860:2716-24. [PMID: 27102279 DOI: 10.1016/j.bbagen.2016.04.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/02/2016] [Accepted: 04/08/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Infertility has become one of the major health problems worldwide, with its incidence having risen markedly in recent decades. There is an urgent need to investigate the pathological mechanisms behind infertility and to design effective treatments. However, this is made difficult by the fact that various biological factors have been identified to be related to infertility, including genetic factors. METHODS A network-based method was established to identify new genes potentially related to infertility. A network constructed using human protein-protein interactions based on previously validated infertility-related genes enabled the identification of some novel candidate genes. These genes were then filtered by a permutation test and their functional and structural associations with infertility-related genes. RESULTS Our method identified 23 novel genes, which have strong functional and structural associations with previously validated infertility-related genes. CONCLUSIONS Substantial evidence indicates that the identified genes are strongly related to dysfunction of the four main biological processes of fertility: reproductive development and physiology, gametogenesis, meiosis and recombination, and hormone regulation. GENERAL SIGNIFICANCE The newly discovered genes may provide new directions for investigating infertility. This article is part of a Special Issue entitled "System Genetics" Guest Editor: Dr. Yudong Cai and Dr. Tao Huang.
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Affiliation(s)
- ShaoPeng Wang
- College of Life Science, Shanghai University, Shanghai 200444, China.
| | - GuoHua Huang
- College of Life Science, Shanghai University, Shanghai 200444, China.
| | - Qinghua Hu
- School of Computer Science and Technology, Tianjin University, Tianjin 300072, China; State Key Laboratory of System Bioengineering of the Ministry of Education, Tianjin University, Tianjin 300072, China.
| | - Quan Zou
- School of Computer Science and Technology, Tianjin University, Tianjin 300072, China; State Key Laboratory of Medicinal Chemical Biology, NanKai University, Tianjin 300071, China.
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