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Service CA, Puri D, Al Azzawi S, Hsieh TC, Patel DP. The impact of obesity and metabolic health on male fertility: a systematic review. Fertil Steril 2023; 120:1098-1111. [PMID: 37839720 DOI: 10.1016/j.fertnstert.2023.10.017] [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: 09/02/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
The impact of paternal obesity and metabolic disease on semen quality and fertility outcomes is not fully appreciated. With increasing obesity rates, researchers have studied the intricate relationship between paternal body mass index, metabolic health, and male fertility. This systematic review identified 112 articles in the MEDLINE database between 2013 and 2023 that investigated the effects of body mass index, diabetes, metabolic syndrome, exercise, weight loss medication, or bariatric surgery on semen parameters, sperm quality, or fertility outcomes. This review suggests that obesity, diabetes, and metabolic syndrome have a negative impact on various parameters of male fertility, from semen quality to sperm deoxyribonucleic acid integrity. There is also mounting evidence that male obesity is correlated negatively with live births via both natural conception and assisted reproductive technologies. Lifestyle interventions, such as physical exercise, generally appear to improve male fertility markers; however, the type and intensity of exercise may play a crucial role. Pharmacologic treatments for weight loss, such as metformin and glucagon-like peptide 1 agonists, present a more complex picture, with studies suggesting both beneficial and detrimental effects on male reproductive health. Similarly, surgical interventions, such as gastric bypass surgery, show promise in improving hormonal imbalances but have mixed effects on semen parameters. Future research is needed to clarify these associations and inform clinical guidelines. In the interim, health practitioners should incorporate these insights into clinical practices, encouraging proactive lifestyle changes and providing targeted treatments to improve male reproductive health.
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Affiliation(s)
- Chad Austin Service
- Department of Urology, University of California San Diego Health, San Diego, California.
| | - Dhruv Puri
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Sultan Al Azzawi
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Tung-Chin Hsieh
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Darshan P Patel
- Department of Urology, University of California San Diego Health, San Diego, California
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2
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Doroftei B, Ilie OD, Maftei R, Scripcariu IS, Armeanu T, Stoian IL, Ilea C. A Narrative Review Discussing Vasectomy-Related Impact upon the Status of Oxidative Stress and Inflammation Biomarkers and Semen Microbiota. J Clin Med 2023; 12:jcm12072671. [PMID: 37048754 PMCID: PMC10095584 DOI: 10.3390/jcm12072671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
Background: Male contraceptive approaches besides tubal sterilization involve vasectomy and represent the method of choice among midlife men in developing countries thanks to many advantages. However, the subsidiary consequences of this intervention are insufficiently explored since the involved mechanisms may offer insight into a much more complex picture. Methods: Thus, in this manuscript, we aimed to reunite all available data by searching three separate academic database(s) (PubMed, Web of Knowledge, and Scopus) published in the past two decades by covering the interval 2000–2023 and using a predefined set of keywords and strings involving “oxidative stress” (OS), “inflammation”, and “semen microbiota” in combination with “humans”, “rats”, and “mice”. Results: By following all evidence that fits in the pre-, post-, and vasectomy reversal (VR) stages, we identified a total of n = 210 studies from which only n = 21 were finally included following two procedures of eligibility evaluation. Conclusions: The topic surrounding this intricate landscape has created debate since the current evidence is contradictory, limited, or does not exist. Starting from this consideration, we argue that further research is mandatory to decipher how a vasectomy might disturb homeostasis.
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Affiliation(s)
- Bogdan Doroftei
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
- Clinical Hospital of Obstetrics and Gynecology “Cuza Voda”, Cuza Voda Street no 34, 700038 Iasi, Romania
- Origyn Fertility Center, Palace Street, no 3C, 700032 Iasi, Romania
| | - Ovidiu-Dumitru Ilie
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University, Carol I Avenue no 20A, 700505 Iasi, Romania
| | - Radu Maftei
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
- Clinical Hospital of Obstetrics and Gynecology “Cuza Voda”, Cuza Voda Street no 34, 700038 Iasi, Romania
- Origyn Fertility Center, Palace Street, no 3C, 700032 Iasi, Romania
| | - Ioana-Sadyie Scripcariu
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
- Clinical Hospital of Obstetrics and Gynecology “Cuza Voda”, Cuza Voda Street no 34, 700038 Iasi, Romania
| | - Theodora Armeanu
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
- Clinical Hospital of Obstetrics and Gynecology “Cuza Voda”, Cuza Voda Street no 34, 700038 Iasi, Romania
- Origyn Fertility Center, Palace Street, no 3C, 700032 Iasi, Romania
| | - Irina-Liviana Stoian
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
| | - Ciprian Ilea
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street no 16, 700115 Iasi, Romania
- Clinical Hospital of Obstetrics and Gynecology “Cuza Voda”, Cuza Voda Street no 34, 700038 Iasi, Romania
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3
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The Association Between Lipid Serum and Semen Parameters: a Systematic Review. Reprod Sci 2023; 30:761-771. [PMID: 35902546 DOI: 10.1007/s43032-022-01040-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/12/2022] [Indexed: 10/16/2022]
Abstract
Increased lipid levels sometimes not only affect sexual function but also are considered to harm semen quality. It is often a suspicion that elevated lipids are a factor in infertility. We conduct a systematic review. Articles that met the criteria were identified according to The Preferred Reporting Items for Systematic Review and Meta-analysis of recommendations in the PubMed, ProQuest, EBSCO, Web of Science Wiley Online, Springer Link, Scopus, and Science Direct databases with no time restriction for publication. Seven studies are eligible for qualitative analysis from nine studies that have the potential to be assessed. These studies measure the correlation of serum lipids (VLDL, HDL, LDL, triglycerides, total cholesterol, free cholesterol, phospholipids, free fatty acids) with semen parameters (concentration, motility, morphology, DNA fragmentation index). Although not all studies consistently report that lipids impact semen quality, this review suspects that lipids have a significant impact on sperm quality. This study implies that it is necessary to maintain lipid levels to maintain sperm quality and quality of life. However, further investigation with an observational cohort study design needs to be carried out to assess the effect of lipids on semen quality more precisely for the promotion of reproductive health care.
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4
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Rahali D, Dallagi Y, Hupkens E, Veegh G, Mc Entee K, Asmi ME, El Fazaa S, El Golli N. Spermatogenesis and steroidogenesis disruption in a model of metabolic syndrome rats. Arch Physiol Biochem 2023; 129:222-232. [PMID: 32886530 DOI: 10.1080/13813455.2020.1812665] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CONTEXT Metabolic syndrome (MetS) is a clustering of several physiological alterations. OBJECTIVE This study was designed to evaluate the effects of MetS on rats spermatogenesis and steroidogenesis. MATERIALS AND METHODS We developed a MetS rodent model using high-sugar and high-fat diet. RESULTS MetS rats showed severe disorders in sperm parameters. Interestingly, a significant increase in malondialdehyde level and a decrease in the antioxidant activities were observed. Moreover, qRT-PCR analysis showed Bax down-regulation and Bcl-2 up-regulation. A decrease in testosterone level was identified, correlated with the CYP11A1, CYP17A1 and 17β HSD testicular marker down-regulation. Finally, MetS rats showed an up-regulation of pro-inflammatory cytokines receptors IL-1R and IL-6R. CONCLUSION MetS induced severe testis toxicity in male rats. Mets markedly distorted sperm parameters, inhibited the transcription of steroidogenic enzymes and led to oxidative stress, inflammation, and alteration of Bax/Bcl-2 ratioin testicular tissues.
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Affiliation(s)
- Dalila Rahali
- Faculty of Sciences of Tunis, University Tunis El Manar, Laboratory of Neurophysiology, Cellular physiopathology and Biomolecule valorisation, Tunis, Tunisia
| | - Yosra Dallagi
- Faculty of Sciences of Tunis, University Tunis El Manar, Laboratory of Neurophysiology, Cellular physiopathology and Biomolecule valorisation, Tunis, Tunisia
| | - Emmeline Hupkens
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Gregory Veegh
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Kathleen Mc Entee
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Monia El Asmi
- Department of Biochemistry, La Rabta Hospital, Tunis, Tunisia
| | - Saloua El Fazaa
- Faculty of Sciences of Tunis, University Tunis El Manar, Laboratory of Neurophysiology, Cellular physiopathology and Biomolecule valorisation, Tunis, Tunisia
| | - Narges El Golli
- Faculty of Sciences of Tunis, University Tunis El Manar, Laboratory of Neurophysiology, Cellular physiopathology and Biomolecule valorisation, Tunis, Tunisia
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5
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Okonofua FE, Ntoimo LFC, Omonkhua A, Ayodeji O, Olafusi C, Unuabonah E, Ohenhen V. Causes and Risk Factors for Male Infertility: A Scoping Review of Published Studies. Int J Gen Med 2022; 15:5985-5997. [PMID: 35811778 PMCID: PMC9268217 DOI: 10.2147/ijgm.s363959] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/16/2022] [Indexed: 12/02/2022] Open
Abstract
Background Despite the evidence of declining sperm counts worldwide and the increasing prevalence of male infertility, there has been limited documentation of the potential causes and risk factors for male infertility. With limited methods of primary treatment of male infertility, understanding the causes and risk factors will pinpoint specific lines of prevention. Objective We reviewed published studies on causes and risk factors for male infertility and identify gaps in the literature enabling more focused research and innovations. Design/Setting The study was a scoping review. The review included studies on the causes and risk factors of male infertility published in scientific/academic publications. It was not limited to any region or date. The following databases were searched: Cumulative Index to Nursing and Allied Health Literature, Wiley online, HINARI, Science Direct, PubMed/Medline, Google Scholar, African Journals Online, and the WHO Repository. In total, 1295 articles were identified. After removing 357 duplicates, 938 articles were screened, and 71 articles were identified for inclusion, while 60 articles met the inclusion criteria. Results Four broad causes and risk factors of male infertility identified were 1) biological/physiological/genetic causes, 2) behavioral/lifestyle risk factors, 3) environmental factors, and 4) socio-demographic risk factors. However, no substantive results on actual causes under each category were identified, leaving gaps for further research and experimentation. Conclusion The results indicate limited knowledge of the actual causes of male infertility in published studies. The gaps in knowledge that need to be bridged to enable a fuller understanding of the actual causes of male infertility were highlighted.
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Affiliation(s)
- Friday Ebhodaghe Okonofua
- Department of Obstetrics and Gynecology, University of Benin, Benin, Edo State, Nigeria
- Center of Excellence in Reproductive Health Innovation, University of Benin, Benin, Edo State, Nigeria
- Women’s Health and Action Research Centre, Benin City, Edo State, Nigeria
- Correspondence: Friday Ebhodaghe Okonofua, Department of Obstetrics and Gynecology, University of Benin, Benin, Edo State, Nigeria, Tel +234 8023347828, Email
| | - Lorretta Favour Chizomam Ntoimo
- Women’s Health and Action Research Centre, Benin City, Edo State, Nigeria
- Department of Demography and Social Statistics, Federal University, Oye-Ekiti, Ekiti State, Nigeria
| | - Akhere Omonkhua
- Center of Excellence in Reproductive Health Innovation, University of Benin, Benin, Edo State, Nigeria
- Department of Medical Biochemistry, School of Basic Medical Sciences, University of Benin, Benin, Edo State, Nigeria
| | - Oladiran Ayodeji
- Department of Obstetrics and Gynaecology, University of Medical Sciences, Ondo, Ondo State, Nigeria
| | - Celestina Olafusi
- Department of Obstetrics and Gynaecology, University of Medical Sciences, Ondo, Ondo State, Nigeria
| | | | - Victor Ohenhen
- Department of Obstetrics and Gynaecology, Central Hospital, Benin, Edo State, Nigeria
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Ceyhan Y, Zhang M, Sandoval CG, Agoulnik AI, Agoulnik IU. Expression pattern and the roles of phosphatidylinositol phosphatases in testis. Biol Reprod 2022; 107:902-915. [PMID: 35766372 DOI: 10.1093/biolre/ioac132] [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: 03/23/2022] [Revised: 06/02/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Phosphoinositides (PIs) are relatively rare lipid components of the cellular membranes. Their homeostasis is tightly controlled by specific PI kinases and phosphatases. PIs play essential roles in cellular signaling, cytoskeletal organization, and secretory processes in various diseases and normal physiology. Gene targeting experiments strongly suggest that in mice with deficiency of several PI phosphatases such as Pten, Mtmrs, Inpp4b, and Inpp5b, spermatogenesis is affected, resulting in partial or complete infertility. Similarly, in men, loss of several of the PIP phosphatases is observed in infertility characterized by the lack of mature sperm. Using available gene expression databases, we compare expression of known PI phosphatases in various testicular cell types, infertility patients, and mouse age-dependent testicular gene expression, and discuss their potential roles in testis physiology and spermatogenesis.
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Affiliation(s)
- Yasemin Ceyhan
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Manqi Zhang
- Department of Medicine, Duke University, Durham, NC, USA
| | - Carlos G Sandoval
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,New York University Grossman School of Medicine, New York, NY, USA
| | - Alexander I Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,Biomolecular Sciences Institute, Florida International University, Miami, FL, USA
| | - Irina U Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,Biomolecular Sciences Institute, Florida International University, Miami, FL, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
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7
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Leisegang K. Oxidative Stress in Men with Obesity, Metabolic Syndrome and Type 2 Diabetes Mellitus: Mechanisms and Management of Reproductive Dysfunction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1358:237-256. [PMID: 35641873 DOI: 10.1007/978-3-030-89340-8_11] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Reactive oxygen species (ROS) are critical physiological mediators of cellular function, including male fertility. When ROS exceed antioxidant regulation, oxidative stress occurs which is detrimental to cellular function. Oxidative stress has been found to be a central mediator of obesity, metabolic syndrome (MetS) and type 2 diabetes mellitus (T2DM), as well as with male infertility. Human studies have correlated testicular oxidative stress in obese males, and animal studies have further provided insight into potential mechanisms of action. Management of oxidative stress is not well defined. Appropriate nutrition and exercise can be recommended for all diabetic patients, and weight loss for obese patients with MetS and T2DM. Consideration of dietary supplements including micronutrients, antioxidants or medicinal herbs are recommended. Metformin may also offer benefits on testicular oxidative stress and fertility parameters. Significantly more research on causation, mechanisms, clinical assessments and appropriate management of infertility on obesity, MetS and T2DM is still required.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Bellville, Cape Town, South Africa.
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8
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Chen YY, Chen WL. Serum Bilirubin and Sperm Quality in Adult Population. TOXICS 2022; 10:toxics10060295. [PMID: 35736904 PMCID: PMC9227271 DOI: 10.3390/toxics10060295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/20/2022] [Accepted: 05/26/2022] [Indexed: 02/04/2023]
Abstract
The neurotoxicity of bilirubin has been extensively reported in numerous studies. However, the association between bilirubin and male fertility has not yet been studied. The main goal of this study was to investigate the association between serum total bilirubin and sperm quality in an adult population. In this cross-sectional study, 9057 participants who attended the MJ health examination (2010–2016) were enrolled. Sperm specimens were collected by masturbation, and sperm quality was analyzed in accordance with the WHO criteria. Serum total bilirubin levels were measured by an automatic biochemical profile analyzer. Thereafter, the associations between serum total bilirubin and sperm quality were determined by a multivariable linear regression. Serum total bilirubin was inversely associated with sperm concentration and normal morphology with β values of −13.82 (95% CI: −26.99, −0.64) and −18.38 (95% CI: −30.46, −6.29) after adjusting for covariables. The highest levels of serum total bilirubin were significantly associated with sperm concentration and normal morphology with β values of −14.15 (95% CI: −28.36, 0.06) and −21.15 (95% CI: −33.99, −8.30). Our study highlighted the potential impact of serum bilirubin on sperm quality in a male population. Additional longitudinal research is necessary to explore these findings and underlying mechanisms.
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Affiliation(s)
- Yuan-Yuei Chen
- Department of Pathology, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei 114, Taiwan;
- Department of Pathology, Tri-Service General Hospital Songshan Branch, School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
- Department of Biochemistry, National Defense Medical Center, Taipei,114, Taiwan
- Correspondence: ; Tel.: +886-2-87923311 (ext. 16567); Fax: +886-2-87927057
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9
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Salvio G, Ciarloni A, Cutini M, delli Muti N, Finocchi F, Perrone M, Rossi S, Balercia G. Metabolic Syndrome and Male Fertility: Beyond Heart Consequences of a Complex Cardiometabolic Endocrinopathy. Int J Mol Sci 2022; 23:5497. [PMID: 35628307 PMCID: PMC9143238 DOI: 10.3390/ijms23105497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/02/2022] [Accepted: 05/13/2022] [Indexed: 12/06/2022] Open
Abstract
Metabolic syndrome (MetS) is a highly prevalent condition among adult males, affecting up to 41% of men in Europe. It is characterized by the association of obesity, hypertension, and atherogenic dyslipidemia, which lead to premature morbidity and mortality due to cardiovascular disease (CVD). Male infertility is another common condition which accounts for about 50% of cases of couple infertility worldwide. Interestingly, male infertility and MetS shares several risk factors (e.g., smoking, ageing, physical inactivity, and excessive alcohol consumption), leading to reactive oxygen species (ROS) production and increased oxidative stress (OS), and resulting in endothelial dysfunction and altered semen quality. Thus, the present narrative review aims to discuss the pathophysiological mechanisms which link male infertility and MetS and to investigate the latest available evidence on the reproductive consequences of MetS.
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Affiliation(s)
| | | | | | | | | | | | | | - Giancarlo Balercia
- Division of Endocrinology, Department of Clinical and Molecular Sciences (DISCLIMO), Polytechnic University of Marche, 60126 Ancona, Italy; (G.S.); (A.C.); (M.C.); (N.d.M.); (F.F.); (M.P.); (S.R.)
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10
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Boursier A, Dumont A, Boitrelle F, Prasivoravong J, Lefebvre-Khalil V, Robin G, Barbotin AL. Necrozoospermia: The tree that hides the forest. Andrology 2022; 10:642-659. [PMID: 35246969 DOI: 10.1111/andr.13172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Necrozoospermia is a condition found in 0.2 to 0.4 % of male infertility cases. The causes of necrozoospermia are multiple: they can be related to testicular and/or post-testicular damage. Additionally, these causes most often involve the production of reactive oxygen species (ROS) and/or sperm DNA fragmentation (SDF) which can reduce the chances of spontaneous pregnancy or affect the outcome of assisted reproductive technologies. OBJECTIVE To focus on potential etiologies of necrozoospermia, its diagnosis and its therapeutic management especially before the employment of ICSI. METHODS Authors searched PubMed/Medline, Web of Science, Cochrane Library, Google and Institutional websites for medical subheading terms and free text words referred to "necrozoospermia", "sperm vitality", "sperm viability", "sperm DNA fragmentation" and "ICSI". RESULTS We identified twelve main etiologies of necrozoospermia responsible for either a decrease of sperm vitality, a mild a moderate or a severe necrozoospermia. In case of a confirmed decreased vitality, a thorough check-up should be conducted and if available, etiological treatment should be proposed. Therapeutic management could also include repeated ejaculations, drug treatments, the use of ICSI with ejaculated or surgically extracted spermatozoa in case of a non-treatable necrozoospermia. DISCUSSION AND CONCLUSION The potential causes of necrozoospermia should be investigated because many of them could be corrected, thus avoiding the use of ICSI. Moreover, if ICSI procedure remains necessary, the therapeutic management of necrozoospermia could also improve the chances of success by reducing oxidative stress and/or sperm DNA fragmentation. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Angele Boursier
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France
| | - A Dumont
- Service de Gynécologie Endocrinienne et Médecine de La Reproduction, Assistance Médicale à La Procréation et Préservation de La Fertilité, Hôpital Jeanne de Flandre, Avenue Eugène Avinée, CHU Lille, Lille, F-59000, France
| | - F Boitrelle
- Service de Biologie de la Reproduction et de Cytogénétique, Centre Hospitalier Poissy-Saint-Germain-en-Laye, Poissy, 78303, France
| | | | - V Lefebvre-Khalil
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France
| | - Geoffroy Robin
- Service de Gynécologie Endocrinienne et Médecine de La Reproduction, Assistance Médicale à La Procréation et Préservation de La Fertilité, Hôpital Jeanne de Flandre, Avenue Eugène Avinée, CHU Lille, Lille, F-59000, France.,Service d'Andrologie, Hôpital Huriez, CHU Lille, Lille, F-59000, France.,EA 4308 Gamètogenèse Et Qualité du Gamète, Université de Lille Et CHU de Lille, Lille, F-59000, France
| | - Anne-Laure Barbotin
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France.,EA 4308 Gamètogenèse Et Qualité du Gamète, Université de Lille Et CHU de Lille, Lille, F-59000, France
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11
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Cohen DJ, Giaccagli MM, Herzfeld JD, González LN, Cuasnicú PS, Da Ros VG. Metabolic syndrome and male fertility disorders: Is there a causal link? Rev Endocr Metab Disord 2021; 22:1057-1071. [PMID: 34037916 DOI: 10.1007/s11154-021-09659-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
Infertility is a global health problem affecting 10-15% of couples in reproductive age. Recent studies have provided growing evidence supporting that lifestyle factors can affect male fertility through alterations in endocrine profiles, spermatogenesis and/or sperm function. One of these critical factors could be the change in the food intake behavior in modern societies that produces metabolic alterations. Regarding this, metabolic syndrome (MetS) prevalence has increased in epidemic in the last 40-50 years. Although MetS is associated with advanced age, changes in lifestyles have accelerated the appearance of symptoms in the reproductive age. We review herein the current understanding of the relationship between MetS and the male reproductive status. For this purpose, in this narrative review a comprehensive literature search was made in both animal models and men, allowing us to evaluate such relationship. This analysis showed a high variability in the reproductive phenotypes observed in patients and mice suffering MetS, including sperm parameters, fertility and offspring health. In view of this, we proposed that the reproductive effects, which are diverse and not robust, observed among MetS-affected males, might depend on additional factors not associated with the metabolic condition and contributed not only by the affected male but also by his partner. With this perspective, this review provides a more accurate insight of this syndrome critical for the identification of specific diagnostic indicators and treatment of MetS-induced fertility disorders.
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Affiliation(s)
- Débora Juana Cohen
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina.
| | - María Milagros Giaccagli
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Jael Dafne Herzfeld
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Lucas Nicolás González
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Patricia Sara Cuasnicú
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Vanina Gabriela Da Ros
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina.
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12
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Are sex disparities in COVID-19 a predictable outcome of failing men's health provision? Nat Rev Urol 2021; 19:47-63. [PMID: 34795426 PMCID: PMC8600906 DOI: 10.1038/s41585-021-00535-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2021] [Indexed: 01/08/2023]
Abstract
The COVID-19 pandemic, caused by the SARS-CoV-2 coronavirus, has taken a catastrophic toll on society, health-care systems and the economy. Notably, COVID-19 has been shown to be associated with a higher mortality rate in men than in women. This disparity is likely to be a consequence of a failure to invest in men’s health, as it has also been established that men have a lower life expectancy and poorer outcomes from non-communicable diseases than women. A variety of biological, social and economic factors have contributed to the sex disparities in mortality from COVID-19. A streamlined men’s health programme — with the urologist as the gatekeeper of men’s health — is needed to help prevent future tragedies of this nature. COVID-19 has been shown to be associated with a higher mortality rate in men than in women. In this Perspectives article, the authors posit that this disparity is due to a failure to invest in men’s health and discuss the biological, social and economic factors that have contributed to the sex disparities in mortality from COVID-19, as well as considering how a streamlined men’s health programme with the urologist in a central role could address these issues.
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Lotti F, Marchiani S, Corona G, Maggi M. Metabolic Syndrome and Reproduction. Int J Mol Sci 2021; 22:ijms22041988. [PMID: 33671459 PMCID: PMC7922007 DOI: 10.3390/ijms22041988] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023] Open
Abstract
Metabolic syndrome (MetS) and infertility are two afflictions with a high prevalence in the general population. MetS is a global health problem increasing worldwide, while infertility affects up to 12% of men. Despite the high prevalence of these conditions, the possible impact of MetS on male fertility has been investigated by a few authors only in the last decade. In addition, underlying mechanism(s) connecting the two conditions have been investigated in few preclinical studies. The aim of this review is to summarize and critically discuss available clinical and preclinical studies on the role of MetS (and its treatment) in male fertility. An extensive Medline search was performed identifying studies in the English language. While several studies support an association between MetS and hypogonadism, contrasting results have been reported on the relationship between MetS and semen parameters/male infertility, and the available studies considered heterogeneous MetS definitions and populations. So far, only two meta-analyses in clinical and preclinical studies, respectively, evaluated this topic, reporting a negative association between MetS and sperm parameters, testosterone and FSH levels, advocating, however, larger prospective investigations. In conclusion, a possible negative impact of MetS on male reproductive potential was reported; however, larger studies are needed.
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Affiliation(s)
- Francesco Lotti
- Andrology, Female Endocrinology and Gender Incongruence Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy; (F.L.); (S.M.)
| | - Sara Marchiani
- Andrology, Female Endocrinology and Gender Incongruence Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy; (F.L.); (S.M.)
| | - Giovanni Corona
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital, Azienda-Usl Bologna, 40139 Bologna, Italy
- Correspondence:
| | - Mario Maggi
- Endocrinology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy;
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Wagner IV, Oliver E, Dötsch J, Söder O. Adverse effects of metabolic disorders in childhood on adult reproductive function and fertility in the male. J Pediatr Endocrinol Metab 2021; 34:13-23. [PMID: 33185575 DOI: 10.1515/jpem-2020-0276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/21/2020] [Indexed: 12/21/2022]
Abstract
Over the last 50 years, there has been a steady decline in fertility rates in humans, which has occurred in parallel with an increasing incidence of obesity and metabolic disorders. The potential impact of these disorders and plausible mechanisms by which they negatively influence male reproduction are only partly understood and published data are often controversial. Obesity is one of the most important health challenges worldwide and is becoming more prevalent in children and adolescents. Obesity, the metabolic syndrome and related co-morbidities can lead to impaired male reproductive function, including adverse effects on spermatogenesis and steroidogenesis as illustrated by reduced sperm number and quality, decreased testosterone levels and elevated inflammatory markers. The incidence of diabetes mellitus type I is also dramatically increasing and may negatively impact spermatogenesis and testicular function, resulting in decreased serum testosterone and epididymal weight. In this review, we summarize and discuss the effects of metabolic diseases that typically develop during childhood and adolescence on later reproductive function and fertility. While impact on reproductive health is likely observed in both sexes, we have chosen to focus on the male in the current review. Specifically, we illustrate adverse effects of obesity, type 1 diabetes, the metabolic syndrome and insulin resistance on sperm function and testosterone metabolism. Identification of pathophysiological mechanisms during childhood may open up new avenues for early prevention and treatment resulting in better reproductive outcomes and improved fertility rates during adulthood.
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Affiliation(s)
- Isabel Viola Wagner
- Karolinska Institutet, Department of Women's and Children's Health, Pediatric Endocrinology Unit, Stockholm, Sweden.,Department of Pediatrics, Medical Faculty, University of Cologne, Pediatric Endocrinology Unit, Cologne, Germany.,Department of Pediatrics, Medical Faculty, University of Lübeck, Pediatric Endocrinology Unit, Lübeck, Germany
| | - Elizabeth Oliver
- NORDFERTIL Research Lab Stockholm, Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital, Solna, Sweden
| | - Jörg Dötsch
- Department of Pediatrics, Medical Faculty, University of Cologne, Pediatric Endocrinology Unit, Cologne, Germany
| | - Olle Söder
- Karolinska Institutet, Department of Women's and Children's Health, Pediatric Endocrinology Unit, Stockholm, Sweden.,Department of Pediatrics, Medical Faculty, University of Lübeck, Pediatric Endocrinology Unit, Lübeck, Germany
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15
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Le MT, Tran NQT, Nguyen ND, Nguyen QHV. The Prevalence and Components of Metabolic Syndrome in Men from Infertile Couples and Its Relation on Semen Analysis. Diabetes Metab Syndr Obes 2021; 14:1453-1463. [PMID: 33824599 PMCID: PMC8018567 DOI: 10.2147/dmso.s302575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/11/2021] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Metabolic syndrome (MetS) has been reported as a deleterious factor in male fertility potential, associated with hypogonadism, impaired spermatogenesis, decreased sperm concentration and motility, and increased sperm DNA damage. This study aimed to determine the prevalence of MetS in men from infertile couples and evaluate its effect on semen analysis (SA). PARTICIPANTS AND METHODS A cross-sectional descriptive study was performed in men from infertile couples diagnosed based on the World Health Organization 2010 criteria and treated at the Hue Center for Reproductive Endocrinology and Infertility, Vietnam. General information included medical history, lifestyle, MetS factors, SA, and sperm DNA fragmentation test were collected. Based on the diagnostic criteria of the American Heart Association and the National Heart, Lung, and Blood Institute for Asian men, the study population was divided into two groups: MetS and non-MetS groups. The outcomes were analyzed for any relationship between MetS and the SA index and the DNA fragmentation index (DFI). RESULTS A total of 534 men from infertile couples were included in this study. The prevalence of MetS was 23.4%, and abnormal semen analysis accounted for 93.8%. Age, body mass index (BMI), waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), hepatitis B and total cholesterol were related to the occurrence of MetS in infertile men (p <0.05). MetS did not reveal any impact on the parameters of SA. There was a positive correlation between waist circumference (WC), WHR, WHtR, and systolic blood pressure (BP) with abnormal sperm head and DFI (p <0.05). CONCLUSION Although the prevalence of MetS was remarkable in men from infertile couples, there was no association between MetS and semen quality. However, WC, WHR, WHtR, and systolic BP were found to be significantly associated with abnormal sperm head and DFI.
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Affiliation(s)
- Minh Tam Le
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
- Department of OBGYN, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
- Correspondence: Minh Tam Le Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen Street, Hue, VietnamTel +84 989 228 779Fax +84 234 3822 173 Email
| | - Nhu Quynh Thi Tran
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Nguyen Dac Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Quoc Huy Vu Nguyen
- Department of OBGYN, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
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16
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Zhou L, Han L, Liu M, Lu J, Pan S. Impact of metabolic syndrome on sex hormones and reproductive function: a meta-analysis of 2923 cases and 14062 controls. Aging (Albany NY) 2020; 13:1962-1971. [PMID: 33260149 PMCID: PMC7880347 DOI: 10.18632/aging.202160] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/05/2020] [Indexed: 04/13/2023]
Abstract
Current evidence is inconsistent regarding the impact of metabolic syndrome (MetS) on sex hormones and reproductive function, and this meta-analysis aimed to illuminate the association. A literature search was conducted in public databases to identify all relevant studies, and study-specific standardized mean differences (SMD) and 95% confidence intervals (CI) were pooled using a random-effects model. Finally, 21 studies were identified with a total of 2923 MetS cases and 14062 controls. In males, MetS cases had a lower level of testosterone, inhibin B, total sperm count, sperm concentration, sperm normal morphology, sperm total motility, sperm progressive motility and sperm vitality, and a higher level of DNA fragmentation and mitochondrial membrane potential. In females, MetS cases had a higher level of testosterone. No significant difference was detected for follicle-stimulating hormone, luteinizing hormone, oestradiol, prolactin, anti-Müllerian hormone and semen volume in males, and for oestradiol, follicle-stimulating hormone, luteinizing hormone and progesterone in females. In conclusion, this meta-analysis indicated the impact of MetS on sex hormones and reproductive function, and MetS cases had a potential risk of infertility.
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Affiliation(s)
- Lihong Zhou
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Liou Han
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Mingyao Liu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Jixuan Lu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Shangha Pan
- Central Laboratory, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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Leisegang K, Sengupta P, Agarwal A, Henkel R. Obesity and male infertility: Mechanisms and management. Andrologia 2020; 53:e13617. [PMID: 32399992 DOI: 10.1111/and.13617] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Obesity is considered a global health problem affecting more than a third of the population. Complications of obesity include cardiovascular diseases, type 2 diabetes mellitus, malignancy (including prostatic cancer), neurodegeneration and accelerated ageing. In males, these further include erectile dysfunction, poor semen quality and subclinical prostatitis. Although poorly understood, important mediators of obesity that may influence the male reproductive system include hyperinsulinemia, hyperleptinemia, chronic inflammation and oxidative stress. Obesity is known to disrupt male fertility and the reproduction potential, particularly through alteration in the hypothalamic-pituitary-gonadal axis, disruption of testicular steroidogenesis and metabolic dysregulation, including insulin, cytokines and adipokines. Importantly, obesity and its underlying mediators result in a negative impact on semen parameters, including sperm concentration, motility, viability and normal morphology. Moreover, obesity inhibits chromatin condensation, DNA fragmentation, increases apoptosis and epigenetic changes that can be transferred to the offspring. This review discusses the impact of obesity on the male reproductive system and fertility, including associated mechanisms. Furthermore, weight management strategies, lifestyle changes, prescription medication, and complementary and alternative medicine in the management of obesity-induced subfertility is discussed.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Cape Town, South Africa
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor, Malaysia
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Cape Town, South Africa
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18
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Chen YY, Kao TW, Peng TC, Yang HF, Wu CJ, Chen WL. Metabolic syndrome and semen quality in adult population. J Diabetes 2020; 12:294-304. [PMID: 31605564 DOI: 10.1111/1753-0407.12995] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 09/04/2019] [Accepted: 10/08/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Male obesity is suggested to impact negatively on male fertility and semen quality in numerous studies. However, previous literatures regarding health effects of the metabolic syndrome (MetS) on semen quality are rare and inconsistent. The aim of this study is to investigate the relationship between MetS and sperm parameters in a Taiwanese reproductive-age male population. METHODS A total of 8395 men who attended a private medical screening program in Taiwan from 2010 to 2016 were included in this cross-sectional study. Semen analysis was assessed in accordance with the WHO guidelines and included sperm concentration, total motility, progressive motility, and morphology. MetS was defined by the modified National Cholesterol Education Program Third Adult Treatment Panel (NCEP ATP III) criteria with the Asian cutoff for waist circumference (WC). The associations between MetS and semen analysis were examined by multivariable linear regressions. RESULTS After fully adjusting for pertinent covariables, MetS was significantly associated with a reduced percentage of sperm normal morphology. Blood pressure, WC, and serum glucose had a significantly negative association with sperm normal morphology. Individuals with an increased number of MetS components had a closer association with reduced sperm progressive motility and the percentage of normal morphology. CONCLUSION MetS and its components exhibited deleterious effects on semen quality among reproductive-age men. Further studies are warranted to explore these pathophysiologic relationship and underlying mechanisms.
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Affiliation(s)
- Yuan-Yuei Chen
- Department of Internal Medicine, Tri-Service General Hospital Songshan Branch; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Department of General Medicine, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Department of General Medicine, Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Tung-Wei Kao
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Graduate Institute of Clinical Medical, College of Medicine, National Taiwan University, Taipei, Republic of China
| | - Tao-Chun Peng
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
| | - Hui-Fang Yang
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
| | - Chen-Jung Wu
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Family Medicine, Department of Community Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Republic of China
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
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19
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Zhao L, Pang A. Effects of Metabolic Syndrome on Semen Quality and Circulating Sex Hormones: A Systematic Review and Meta-Analysis. Front Endocrinol (Lausanne) 2020; 11:428. [PMID: 32849258 PMCID: PMC7431460 DOI: 10.3389/fendo.2020.00428] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/01/2020] [Indexed: 12/29/2022] Open
Abstract
Previous studies were controversial in the effects of metabolic syndrome (MetS) on semen quality and circulating sex hormones, and thus we conducted a systematic review and meta-analysis to clarify the association. A systematic search was conducted in public databases to identify all relevant studies, and study-specific standardized mean differences (SMD) and 95% confidence intervals (CI) were pooled using a random-effects model. Finally, 11 studies were identified with a total of 1,731 MetS cases and 11,740 controls. Compared with the controls, MetS cases had a statistically significant decrease of sperm total count (SMD: -0.96, 95% CI: -1.58 to -0.31), sperm concentration (SMD: -1.13, 95% CI: -1.85 to -0.41), sperm normal morphology (SMD: -0.61, 95% CI: -1.01 to -0.21), sperm progressive motility (SMD: -0.58, 95% CI: -1.00 to -0.17), sperm vitality (SMD: -0.83, 95% CI: -1.11 to -0.54), circulating follicle-stimulating hormone (SMD: -0.87, 95% CI: -1.53 to -0.21), testosterone (SMD: -5.61, 95% CI: -10.90 to -0.31), and inhibin B (SMD: -2.42, 95% CI: -4.52 to -0.32), and a statistically significant increase of sperm DNA fragmentation (SMD: 0.76, 95% CI: 0.45 to 1.06) and mitochondrial membrane potential (SMD: 0.89, 95% CI: 0.49 to 1.28). No significant difference was found in semen volume, sperm total motility, circulating luteinizing hormone (LH), estradiol, prolactin and anti-Müllerian hormone (AMH) (P > 0.05). In conclusion, this meta-analysis demonstrated the effects of MetS on almost all the semen parameters and part of the circulating sex hormones, and MetS tended to be a risk factor for male infertility. Further larger-scale prospective designed studies were needed to confirm our findings.
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Affiliation(s)
- Liming Zhao
- Department of Nuclear Medicine, Linyi People's Hospital, Linyi, China
| | - Aixia Pang
- Department of Urology, Linyi People's Hospital, Linyi, China
- *Correspondence: Aixia Pang
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20
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Association between high-fat diet feeding and male fertility in high reproductive performance mice. Sci Rep 2019; 9:18546. [PMID: 31811184 PMCID: PMC6898043 DOI: 10.1038/s41598-019-54799-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/29/2019] [Indexed: 12/14/2022] Open
Abstract
The increasing worldwide prevalence of metabolic syndrome (MetS), especially in younger populations, is a risk factor for fertility disorders. However, a direct correlation of MetS with male infertility still remains unclear. In this work, we evaluated whether MetS has a negative impact on fertility of hybrid male mice with high reproductive performance. To induce a MetS-like condition, (C57BL/6xBALB/c) F1 male mice were fed a high-fat diet (HFD, 30% fat) for 19 weeks, while controls received a normal-fat diet (NFD, 6% fat). HFD-fed animals exhibited increased body weight, hypercholesterolemia, hyperglycemia and glucose intolerance. In vivo fertilisation assays performed along the treatment period showed no differences in fertilisation nor in vitro embryo development rates between groups. While testicular weight and morphology were similar in both groups, HFD-fed mice presented lighter epididymides and higher amounts of gonadal fat. Moreover, sperm count was lower in HFD-fed mice, despite normal sperm viability, morphology, motility or acrosome reaction. Finally, no differences were observed in in vitro fertilisation rates between groups. In summary, although HFD feeding altered some reproductive parameters, it did not impair male fertility in high performance breeders suggesting the possibility that a fertility impairment could be the result of the cumulative combination of environmental and/or genetic factors.
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21
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Ramírez ND, Luque EM, Jones XM, Torres PJ, Moreira Espinoza MJ, Cantarelli V, Ponzio MF, Arja A, Rabaglino MB, Martini AC. Modulatory effects of ghrelin on sperm quality alterations induced by a fructose-enriched diet. Heliyon 2019; 5:e02886. [PMID: 31844755 PMCID: PMC6895644 DOI: 10.1016/j.heliyon.2019.e02886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/27/2019] [Accepted: 11/15/2019] [Indexed: 11/26/2022] Open
Abstract
The objectives of this study were: 1) to evaluate the effects of a fructose enriched diet (FED) on rat sperm quality, epididymal function (i.e. oxidative stress and alpha-glucosidase expression) and testosterone concentrations; 2) to determine if the administration of ghrelin (Ghrl), reverses the effects induced by FED. After validating the protocol as an inductor of metabolic syndrome like-symptoms, adult male rats were assigned to one of the following treatments for 8 weeks: FED = 10% fructose enriched in water (v/v); FED + Ghrl = fructose enriched diet plus Ghrl (6 nmol/animal/day, s.c.) from week 6-8; or C = water without fructose (n = 5-10 animals/group). FED significantly decreased sperm concentration and motile sperm count/ml vs C (FED: 19.0 ± 1.6 × 106sperm/ml and 834.6 ± 137.0, respectively vs C: 25.8 ± 2.8 × 106 and 1300.4 ± 202.4, respectively; p < 0.05); ghrelin injection reversed this negative effect (23.5 ± 1.6 × 106sperm/ml and 1381.7 ± 71.3 respectively). FED resulted in hypogonadism, but Ghrl could not normalize testosterone concentrations (C: 1.4 ± 0.1 ng/ml vs FED: 0.8 ± 0.2 ng/ml and FED + Ghrl: 0.6 ± 0.2 ng/ml; p < 0.05). Ghrelin did not reverse metabolic abnormalities secondary to FED. FED did not alter epididymal expression of antioxidants enzymes (superoxido-dismutase, catalase and glutathione peroxidases -Gpx-). Nevertheless, FED + Ghrl significantly increased the expression of Gpx3 (FED + Ghrl: 3.47 ± 0.48 vs FED: 0.69 ± 0.28 and C: 1.00 ± 0.14; p < 0.05). The expression of neutral alpha-glucosidase, which is a marker of epididymal function, did not differ between treatments. In conclusion, the administration of Ghrl modulated the negative effects of FED on sperm quality, possibly by an epididymal increase in Gpx3 expression. However, Ghrl could not neither normalize the metabolism of FED animals, nor reverse hypogonadism.
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Affiliation(s)
- Nicolás David Ramírez
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina
| | - Eugenia Mercedes Luque
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina
| | - Xaviar Michael Jones
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina
| | - Pedro Javier Torres
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET-Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Pabellón de Biología Celular, Ciudad Universitaria, 5016, Córdoba, Argentina
| | - María José Moreira Espinoza
- Instituto de Biología Celular, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Ciudad Universitaria, 5016, Córdoba, Argentina
| | - Verónica Cantarelli
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET-Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Pabellón de Biología Celular, Ciudad Universitaria, 5016, Córdoba, Argentina
| | - Marina Flavia Ponzio
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET-Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Pabellón de Biología Celular, Ciudad Universitaria, 5016, Córdoba, Argentina
| | - Ana Arja
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina
| | - María Belén Rabaglino
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET-Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Pabellón de Biología Celular, Ciudad Universitaria, 5016, Córdoba, Argentina
| | - Ana Carolina Martini
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, X5000ESU, Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET-Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros esq, Enfermera Gordillo, Pabellón de Biología Celular, Ciudad Universitaria, 5016, Córdoba, Argentina
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22
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Rastrelli G, Lotti F, Reisman Y, Sforza A, Maggi M, Corona G. Metabolically healthy and unhealthy obesity in erectile dysfunction and male infertility. Expert Rev Endocrinol Metab 2019; 14:321-334. [PMID: 31464531 DOI: 10.1080/17446651.2019.1657827] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/16/2019] [Indexed: 12/17/2022]
Abstract
Introduction: Metabolically unhealthy obesity (MUHO) is the most important preventable cardiovascular (CV) risk factor. Recently, the significance of metabolically healthy obesity (MHO) as a CV risk factor has raised increasing interest. MUHO is a known risk factor for erectile dysfunction (ED); however, the effect of MHO on ED has barely been investigated. This review aims at summarizing the evidence supporting the relation of MUHO and MHO to male sexual functioning and fertility. Areas covered: An extensive Medline search on obesity and ED or male infertility was conducted to summarize the role of MUHO or MHO on male sexual dysfunction and infertility. Expert opinion: Longitudinal studies have demonstrated that MHO causes vascular damage, which is consistent with the impairment in penile blood flows found in ED subjects. In this population, MHO is a predictor of CV events. The relationship between male infertility and MUHO is currently debated and data on MHO are almost completely lacking. The only available study did not find an association between obesity classes and semen parameters. Although the andrological correlates of MHO must be better assessed, in the current state, evidence suggests that MHO does not represent a benign condition and measures for improving lifestyle are mandatory.
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Affiliation(s)
- Giulia Rastrelli
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Francesco Lotti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Yacov Reisman
- Department of Urology, Amstelland Hospital , Amsterdam , The Netherlands
| | - Alessandra Sforza
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital , Bologna , Italy
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Giovanni Corona
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital , Bologna , Italy
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Leisegang K, Henkel R, Agarwal A. Obesity and metabolic syndrome associated with systemic inflammation and the impact on the male reproductive system. Am J Reprod Immunol 2019; 82:e13178. [DOI: 10.1111/aji.13178] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 07/08/2019] [Accepted: 07/23/2019] [Indexed: 02/06/2023] Open
Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine University of the Western Cape Bellville Cape Town South Africa
| | - Ralf Henkel
- Department of Medical Biosciences University of the Western Cape Bellville Cape Town South Africa
- Department of Urology American Center for Reproductive Medicine Cleveland Clinic Cleveland Ohio
| | - Ashok Agarwal
- Department of Urology American Center for Reproductive Medicine Cleveland Clinic Cleveland Ohio
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Dupont C, Faure C, Daoud F, Gautier B, Czernichow S, Lévy R. Metabolic syndrome and smoking are independent risk factors of male idiopathic infertility. Basic Clin Androl 2019; 29:9. [PMID: 31304019 PMCID: PMC6600889 DOI: 10.1186/s12610-019-0090-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 05/05/2019] [Indexed: 11/16/2022] Open
Abstract
Background Overweight and obesity are known to impact male fertility and are commonly associated with abdominal obesity and metabolic disorders. The association between abdominal obesity or metabolic syndrome with male reproduction has not been fully investigated. Moreover, many factors may interfere with the evaluation of the impact of metabolic syndrome on male fertility. Thus, tobacco is known to alter the spermatic parameters and phenomena linking smoking with metabolic syndrome are therefore complex. The main objective of this study has been to investigate the potential association of metabolic syndrome with male idiopathic infertility given smoking status. Materiel and methods The data of this study concerned infertile (n = 96) and fertile (n = 100) men under 45 years of age who have been recruited in the ALIFERT case-control study. Body mass index and waist circumference were measured. Serum triglycerides, cholesterol (total, high density lipoprotein, and low density lipoprotein cholesterol) and fasting blood glucose were assayed. Metabolic syndrome has been diagnosed in the presence of at least three of the following criteria: increased waist circumference, high triglycerides, fasting glucose or arterial blood pressure and low high density lipoprotein cholesterol. Results The present study reports that infertile men are in poorer health condition compared to fertile men and are more often smokers. The results of this study suggested metabolic syndrome and smoking to be independent risk factor for idiopathic infertility. Conclusions Metabolic syndrome and smoking should systematically be checked at the beginning of medical care in infertile males and personal and multifaceted coaching should be proposed to deal jointly with smoking and metabolic disorders. Trial registration NCT01093378 ALIFERT. Registered: March 25, 2010.
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Affiliation(s)
- Charlotte Dupont
- 1Sorbonne Université, Saint Antoine Research center, INSERM équipe Lipodystrophies génétiques et acquisesService de biologie de la reproduction-CECOS, AP-H, Hôpital Tenon, 4 rue de la Chine, 75020 Paris, France
| | - Céline Faure
- AP-HP, Hôpital Tenon, service de biologie de la reproduction CECOS, Paris, France
| | - Frederic Daoud
- AP-HP, Hôpital Tenon, service de biologie de la reproduction CECOS, Paris, France
| | - Benoit Gautier
- AP-HP, Hôpital Tenon, service de biologie de la reproduction CECOS, Paris, France
| | - Sébastien Czernichow
- 3Université Paris Descartes, Paris, France.,4APHP, Service de nutrition, Hôpital européen Georges-Pompidou, Paris, France
| | - Rachel Lévy
- 1Sorbonne Université, Saint Antoine Research center, INSERM équipe Lipodystrophies génétiques et acquisesService de biologie de la reproduction-CECOS, AP-H, Hôpital Tenon, 4 rue de la Chine, 75020 Paris, France
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25
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Martins AD, Majzoub A, Agawal A. Metabolic Syndrome and Male Fertility. World J Mens Health 2019; 37:113-127. [PMID: 30350486 PMCID: PMC6479081 DOI: 10.5534/wjmh.180055] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/05/2018] [Indexed: 12/23/2022] Open
Abstract
Metabolic syndrome (MetS) represents a cluster of conditions that have a negative impact on human health overall. Its prevalence has been rapidly increasing worldwide and has coincided with a global decrease in birth rates and fertility potential. This review aims to address this observation through studying the relationship between MetS and male reproductive health. The effects of obesity, dyslipidemia, hypertension, and insulin resistance on male fertility were examined and supporting evidence explaining the pathophysiology of sperm dysfunction with each MetS component were described. Adopting a healthy lifestyle appears to be the single most important intervention to prevent the unwanted effects of MetS on men's health and fertility. Further studies addressing the components of MetS and their impact on male reproduction are required to enhance our understanding of the underlying pathophysiology and to propose new methods for therapeutic intervention.
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Affiliation(s)
- Ana Dias Martins
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine, Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation and Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Ashok Agawal
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA.
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Foucaut AM, Faure C, Julia C, Czernichow S, Levy R, Dupont C. Sedentary behavior, physical inactivity and body composition in relation to idiopathic infertility among men and women. PLoS One 2019; 14:e0210770. [PMID: 31017887 PMCID: PMC6481765 DOI: 10.1371/journal.pone.0210770] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/10/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Physical activity (PA) and sedentary behavior have inconsistent effects on fertility. High body mass index is associated with infertility but to our knowledge, very few studies have explored body composition in association to fertility. OBJECTIVE To assess the association between physical inactivity, sedentary behavior, body composition and idiopathic infertility in French men and women. DESIGN We conducted a case-control multicentric observational study. 159 infertile (79 men and 80 women) and 143 fertile (72 men and 71 women) were recorded in four fertility centers. MAIN OUTCOME MEASURES Participants completed self-administered questionnaires on sociodemographic and lifestyle characteristics, dietary intake, physical activity and sedentary behavior. Anthropometrics were measured, and bioelectrical impedance analysis was used to estimate body composition. Multivariable logistic regression was used to analyze the association of fertility with PA level and sedentary behavior. RESULTS In men, being physically inactive (Odd ratio [OR] 2.20; 95% confidence interval [CI], 1.06, 4.58) and having fat mass greater than the reference values for their age (OR 2.83; 95%CI, 1.31, 6.10) were positively associated with infertility. Sedentary behavior and fat-free mass were not related to infertility in men. In women, sedentary behavior (OR 3.61; 95%CI, 1.58, 8.24), high body fat (OR 3.16; 95%CI, 1.36, 7.37) and low fat-free mass (OR 2.65; 95%CI, 1.10, 6.37) were associated with infertility. PA level was not associated with fertility in women. CONCLUSIONS This study suggests that sedentary behavior and physical inactivity would represent two independent risk factors associated with infertility. The various elements that make up physical activity (frequency, intensity, time, and type of exercise) and the interrupting time spent sitting should be considered. Body composition variation should be explored further in relation to the biological pathways involved in idiopathic infertility. Moreover, the improvement of lifestyle factors should be considered in infertility treatment.
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Affiliation(s)
- Aude-Marie Foucaut
- Université Paris 13, Sorbonne Paris Cité, Laboratoire Educations et Pratiques de Santé (LEPS) EA 3412, UFR SMBH, Bobigny, France
| | - Céline Faure
- AP-HP, Hôpital Tenon, service de biologie de la reproduction CECOS, Paris, France
| | - Chantal Julia
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidemiologie et Biostatistiques Sorbonne Paris Cité (CRESS), Inserm U1153, Inra U1125, Cnam, COMUE Sorbonne-Paris-Cité, Bobigny, France
- Département de Santé Publique, Hôpital Avicenne, AP-HP, Bobigny, France
| | - Sébastien Czernichow
- Service de nutrition (Centre Spécialisé Obésité IdF), Hôpital européen Georges Pompidou, AP-HP, Paris, France
- Université Paris Descartes, Paris, France
| | - Rachel Levy
- Sorbonne Université, Saint Antoine Research center, INSERM équipe Lipodystrophies génétiques et acquises. Service de biologie de la reproduction-CECOS, AP-HP, Hôpital Tenon, Paris, France
| | - Charlotte Dupont
- Sorbonne Université, Saint Antoine Research center, INSERM équipe Lipodystrophies génétiques et acquises. Service de biologie de la reproduction-CECOS, AP-HP, Hôpital Tenon, Paris, France
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Leisegang K, Henkel R. The in vitro modulation of steroidogenesis by inflammatory cytokines and insulin in TM3 Leydig cells. Reprod Biol Endocrinol 2018; 16:26. [PMID: 29566712 PMCID: PMC5863825 DOI: 10.1186/s12958-018-0341-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/06/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Cytokines and hormones, including insulin, are known to modulate the hypothalamic-pituitary-testes axis and steroidogenesis, both centrally and peripherally. In the context of chronic inflammation and hyperinsulinaemia mediating male hypogonadism associated with obesity, metabolic syndrome and type 2 diabetes mellitus, these mechanisms are poorly understood and the impact of cytokines and insulin on Leydig cell steroidogenesis has not been fully elicited. This study aimed to further investigate the in vitro impact of TNFα, IL1ß, IL6, IL8 and insulin on Leydig cell function and steroidogenesis. METHODS hCG-stimulated TM3 Leydig cells were exposed to various concentrations of TNFα, IL1ß, IL6, IL8 (100 ng/ml, 10 ng/ml, 1 ng/ml and 0.1 ng/ml) and insulin (10 ng/ml, 1 ng/ml, 0.1 ng/ml and 0.01 ng/ml) in optimal cell culture conditions over 48 h. Cell viability (XTT) and testosterone and progesterone concentrations (ELISA) were assessed using standardised laboratory techniques. RESULTS TNFα significantly decreased cell viability and progesterone and testosterone concentrations in a dose-dependent relationship. IL1ß and IL6 had a subtle but significant negative effect on cell viability and testosterone concentrations, with a marked significant decrease in progesterone concentration at all concentrations investigated. IL8 showed an increase in cell viability, with no significant effect on testosterone concentrations alongside a significant decrease in progesterone concentrations. Insulin significantly increased cell viability and testosterone concentrations in a dose dependent relationship, but interestingly significantly decreased progesterone concentrations. CONCLUSIONS The inflammatory cytokines TNFα, IL1β and IL6 cause a dose dependent decline in steroidogenesis in TM3 Leydig cells. These results suggest that chronic inflammation may downregulate steroidogenesis in males via direct modulation of Leydig cell function. However, IL8 may stimulate TM3 Leydig cell growth. Insulin is associated with a dose-dependent increase in testosterone synthesis, with a significant decline in progesterone synthesis. With the phenomenon of insulin resistance, the literature is unclear on the potential role of hyperinsulinaemia in steroidogenesis. Further studies are warranted in order to fully elicit the molecular mechanisms and interactions of these molecules on male steroidogenesis.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa.
| | - Ralf Henkel
- Department of Medical Biosciences, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
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The effect of metabolic syndrome on male reproductive health: A cross-sectional study in a group of fertile men and male partners of infertile couples. PLoS One 2018; 13:e0194395. [PMID: 29547878 PMCID: PMC5856494 DOI: 10.1371/journal.pone.0194395] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 03/03/2018] [Indexed: 01/04/2023] Open
Abstract
This study aimed to determine the effect of metabolic syndrome (MS) on the reproductive function in fertile (FM) and male partners of infertile couples (MPIC). We performed a cross-sectional study formatting two study groups: partners of pregnant women (n = 238; mean age 32.0) as FM and male partners of infertile couples (n = 2642; mean age 32.6) as MPIC. A standard semen analysis was performed and clinical, laboratory and lifestyle data were analysed. The adapted NCEP-ATPIII criteria were used to define MS. 12.2% of FM and 17.8% of MPIC had MS. In both groups, men with MS were older, they were centrally obese and had higher triglycerides, systolic and diastolic blood pressure and decreased HDL cholesterol values as compared to men without MS. However, glucose concentrations as well as fasting insulin levels were significantly higher only in the MPIC-MS+ group. MS was not associated with semen parameters. Testosterone levels were negatively correlated to MS in both groups. This negative association persisted within the BMI categories between MPIC-MS- and MPIC-MS+ groups. LH was negatively correlated to MS but only in MPIC. FSH and oestradiol were not correlated to MS. Smoking and alcohol consumption were higher among men with MS. This study shows that except for testosterone, MS has no independent effect on major fertility parameters in different subgroups of men.
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Ventimiglia E, Capogrosso P, Serino A, Boeri L, Colicchia M, La Croce G, Scano R, Papaleo E, Damiano R, Montorsi F, Salonia A. Metabolic syndrome in White-European men presenting for secondary couple's infertility: an investigation of the clinical and reproductive burden. Asian J Androl 2017; 19:368-373. [PMID: 27004539 PMCID: PMC5427796 DOI: 10.4103/1008-682x.175783] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 07/26/2015] [Accepted: 01/08/2016] [Indexed: 11/29/2022] Open
Abstract
We aimed to determine the impact of metabolic syndrome (MetS) on reproductive function in men with secondary infertility, a condition that has received relatively little attention from researchers. Complete demographic, clinical, and laboratory data from 167 consecutive secondary infertile men were analyzed. Health-significant comorbidities were scored with the Charlson Comorbidity Index (CCI; categorised 0 vs 1 vs 2 or higher). NCEP-ATP III criteria were used to define MetS. Semen analysis values were assessed based on the 2010 World Health Organization (WHO) reference criteria. Descriptive statistics and logistic regression models tested the association between semen parameters and clinical characteristics and MetS. MetS was found in 20 (12%) of 167 men. Patients with MetS were older (P < 0.001) and had a greater BMI (P < 0.001) compared with those without MetS. MetS patients had lower levels of total testosterone (P = 0.001), sex hormone-binding globulin, inhibin B, and anti-Mόllerian hormone (all P ≤ 0.03), and they were hypogonadal at a higher prevalence (P = 0.01) than patients without MetS. Moreover, MetS patients presented lower values of semen volume, sperm concentration, and sperm normal morphology (all P ≤ 0.03). At multivariate logistic regression analysis, no parameters predicted sperm concentration, normal sperm morphology, and total progressive motility. Our data show that almost 1 of 8 White-European men presenting for secondary couple's infertility is diagnosed with MetS. MetS was found to be associated with a higher prevalence of hypogonadism, decreased semen volume, decreased sperm concentration, and normal morphology in a specific cohort of White-European men.
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Affiliation(s)
- Eugenio Ventimiglia
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
- Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
- Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Alessandro Serino
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Luca Boeri
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Michele Colicchia
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Giovanni La Croce
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
- Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Roberta Scano
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Enrico Papaleo
- Infertility Unit, Unit of Obstetrics/Gynecology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Rocco Damiano
- Research Doctorate Program in Urology, Magna Graecia University, 88020 Catanzaro, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
- Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, 20132 Milan, Italy
- Research Doctorate Program in Urology, Magna Graecia University, 88020 Catanzaro, Italy
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30
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Simón L, Funes AK, Yapur MA, Cabrillana ME, Monclus MA, Boarelli PV, Vincenti AE, Saez Lancellotti TE, Fornés MW. Manchette-acrosome disorders during spermiogenesis and low efficiency of seminiferous tubules in hypercholesterolemic rabbit model. PLoS One 2017; 12:e0172994. [PMID: 28241054 PMCID: PMC5328279 DOI: 10.1371/journal.pone.0172994] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/13/2017] [Indexed: 12/31/2022] Open
Abstract
Hypercholesterolemia is a marker for several adult chronic diseases. Recently we demonstrated that sub/infertility is also associated to Hypercholesterolemia in rabbits. Seminal alterations included: abnormal sperm morphology, decreased sperm number and declined percentage of motile sperm, among others. In this work, our objective was to evaluate the effects of hypercholesterolemia on testicular efficiency and spermiogenesis, as the latter are directly related to sperm number and morphology respectively. Tubular efficiency was determined by comparing total number of spermatogenic cells with each cell type within the proliferation/differentiation compartments. We found lower testicular efficiency related to both a decrease in spermatogonial cells and an increase in germ cell apoptosis in hypercholesterolemic rabbits. On the other hand, spermiogenesis-the last step of spermatogenesis involved in sperm shaping-was detaily analyzed, particularly the acrosome-nucleus-manchette complex. The manchette is a microtubular-based temporary structure responsible in sperm cell elongation. We analyzed the contribution of actin filaments and raft microdomains in the arrangement of the manchette. Under fluorescence microscopy, spermatocyte to sperm cell development was followed in cells isolated from V to VIII tubular stages. In cells from hypercholesterolemic rabbits, abnormal development of acrosome, nucleus and inaccurate tail implantation were associated with actin-alpha-tubulin-GM1 sphingolipid altered distribution. Morphological alterations were also observed at electron microscopy. We demonstrated for the first time that GM1-enriched microdomains together with actin filaments and microtubules are involved in allowing the correct anchoring of the manchette complex. In conclusion, cholesterol enriched diets promote male fertility alterations by affecting critical steps in sperm development: spermatogenesis and spermiogenesis. It was also demonstrated that hypercholesterolemic rabbit model is a useful tool to study serum cholesterol increment linked to sub/infertility.
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Affiliation(s)
- Layla Simón
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
| | - Abi K. Funes
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
| | - Martín A. Yapur
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
| | - María E. Cabrillana
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
| | - María A. Monclus
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
| | - Paola V. Boarelli
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
| | - Amanda E. Vincenti
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
| | - Tania E. Saez Lancellotti
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
| | - Miguel W. Fornés
- Laboratorio de Investigaciones Andrológicas de Mendoza (LIAM). Instituto y Área de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo y Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina
- Instituto de investigaciones. Facultad de Ciencias Médicas. Universidad del Aconcagua. Mendoza, Argentina
- * E-mail:
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Dumont A, Barbotin AL, Lefebvre-Khalil V, Mitchell V, Rigot JM, Boitrelle F, Robin G. [Necrozoospermia: From etiologic diagnosis to therapeutic management]. ACTA ACUST UNITED AC 2017; 45:238-248. [PMID: 28697346 DOI: 10.1016/j.gofs.2017.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/19/2017] [Indexed: 12/11/2022]
Abstract
This review describes necrospermia, its diagnosis, causes and management. Sperm vitality is commonly assessed in the laboratory of reproductive biology, with the eosin test or with the hypo-osmotic swelling test. Necrospermia is defined by a percentage of living spermatozoa inferior to 58%, and can be related to male infertility. Several pathological mechanisms may be involved and can be classified either in testicular causes (hyperthyroidism, local hyperthermia, varicocele), or post-testicular causes (epididymal necrospermia, dysregulation of seminal plasma, adult polycystic kidney disease, vasectomy reversal, anti-sperm antibodies) or both (infection, toxic, age, spinal cord injury). The first treatment is to correct the underlying cause, if possible. Repetitive ejaculation has demonstrated to be effective as well. Many drugs would also improve the sperm vitality (antioxidants, non-and-steroidal anti-inflammatory drugs) but there is currently no guideline to recommend their use. With necrospermia, fertilization rates are lower but in vitro fertilization (IVF) with Intracytoplasmic sperm injection (ICSI) improves the chances of conception.
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Affiliation(s)
- A Dumont
- Service de gynécologie endocrinienne et médecine de la reproduction, hôpital Jeanne-de-Flandre, centre hospitalier régional universitaire, 2, avenue Oscar-Lambret, 59000 Lille, France.
| | - A-L Barbotin
- Service de biologie de la reproduction-spermiologie-CECOS, hôpital Jeanne-de-Flandre, centre hospitalier régional universitaire, 59000 Lille, France; EA 4308 gamétogenèse et qualité du gamète, institut de biologie de la reproduction-spermiologie-CECOS, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France
| | - V Lefebvre-Khalil
- Service de biologie de la reproduction-spermiologie-CECOS, hôpital Jeanne-de-Flandre, centre hospitalier régional universitaire, 59000 Lille, France
| | - V Mitchell
- Service de biologie de la reproduction-spermiologie-CECOS, hôpital Jeanne-de-Flandre, centre hospitalier régional universitaire, 59000 Lille, France; EA 4308 gamétogenèse et qualité du gamète, institut de biologie de la reproduction-spermiologie-CECOS, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France
| | - J-M Rigot
- EA 4308 gamétogenèse et qualité du gamète, institut de biologie de la reproduction-spermiologie-CECOS, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France; Service d'andrologie, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France
| | - F Boitrelle
- Service de biologie de la reproduction et de cytogénétique, centre hospitalier Poissy-Saint-Germain-en-Laye, 78303 Poissy, France
| | - G Robin
- Service de gynécologie endocrinienne et médecine de la reproduction, hôpital Jeanne-de-Flandre, centre hospitalier régional universitaire, 2, avenue Oscar-Lambret, 59000 Lille, France; EA 4308 gamétogenèse et qualité du gamète, institut de biologie de la reproduction-spermiologie-CECOS, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France; Service d'andrologie, hôpital Albert-Calmette, centre hospitalier régional universitaire, 59000 Lille, France
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Pilatz A, Hudemann C, Wolf J, Halefeld I, Paradowska-Dogan A, Schuppe HC, Hossain H, Jiang Q, Schultheiss D, Renz H, Weidner W, Wagenlehner F, Linn T. Metabolic syndrome and the seminal cytokine network in morbidly obese males. Andrology 2016; 5:23-30. [DOI: 10.1111/andr.12296] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 08/14/2016] [Accepted: 09/17/2016] [Indexed: 02/06/2023]
Affiliation(s)
- A. Pilatz
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - C. Hudemann
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics; Philipps University; Marburg Germany
| | - J. Wolf
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - I. Halefeld
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - A. Paradowska-Dogan
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - H.-C. Schuppe
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - H. Hossain
- Institute for Medical Microbiology; Justus Liebig University; Giessen Germany
| | - Q. Jiang
- Clinical Research Unit; Centre of Internal Medicine; Justus Liebig University; Giessen Germany
| | - D. Schultheiss
- Department of Urology; Protestant Hospital; Giessen Germany
| | - H. Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics; Philipps University; Marburg Germany
| | - W. Weidner
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - F. Wagenlehner
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - T. Linn
- Clinical Research Unit; Centre of Internal Medicine; Justus Liebig University; Giessen Germany
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33
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Ventimiglia E, Capogrosso P, Colicchia M, Boeri L, Serino A, Castagna G, Clementi MC, La Croce G, Regina C, Bianchi M, Mirone V, Damiano R, Montorsi F, Salonia A. Metabolic syndrome in white European men presenting for primary couple's infertility: investigation of the clinical and reproductive burden. Andrology 2016; 4:944-51. [PMID: 27368157 DOI: 10.1111/andr.12232] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 04/24/2016] [Accepted: 05/10/2016] [Indexed: 02/06/2023]
Abstract
Despite complex interactions between obesity, dyslipidemia, hyperinsulinaemia, and the reproductive axis, the impact of metabolic syndrome on human male reproductive function has not been analysed comprehensively. Complete demographic, clinical, and laboratory data from 1337 consecutive primary infertile men were analysed. Health-significant comorbidities were scored with the Charlson Comorbidity Index (categorised 0 vs. 1 vs. 2 or higher). NCEP-ATPIII criteria were used to define metabolic syndrome. Semen analysis values were assessed based on the 2010 World Health Organisation (WHO) reference criteria. Descriptive statistics and logistic regression models tested the association between semen parameters and clinical characteristics and metabolic syndrome. Metabolic syndrome was found in 128 (9.6%) of 1337 men. Patients with metabolic syndrome were older (p < 0.001) and had a greater Charlson Comorbidity Index of 1 or higher (chi-square: 15.6; p < 0.001) compared with those without metabolic syndrome. Metabolic syndrome patients had lower levels of total testosterone (p < 0.001), sex hormone-binding globulin (p = 0.004), inhibin B (p = 0.03), and anti-Müllerian hormone (p = 0.009), and they were hypogonadal at a higher rate (chi-square: 32.0; p < 0.001) than patients without metabolic syndrome. Conversely, the two groups did not differ significantly in further hormonal levels, semen parameters, and rate of either obstructive or non-obstructive azoospermia. At multivariate logistic regression analysis, testicular volume (OR: 0.90; p = 0.002) achieved independent predictor status for WHO pathological semen concentration; conversely, age, Charlson Comorbidity Index scores, metabolic syndrome, and inhibin B values did not. No parameters predicted normal sperm morphology and total progressive motility. Metabolic syndrome accounts for roughly 9% of men presenting for primary couple's infertility. Although metabolic syndrome patients have a lower general male health status, semen analysis values seem independent of the presence of metabolic syndrome.
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Affiliation(s)
- E Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - P Capogrosso
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - M Colicchia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - L Boeri
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - A Serino
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - G Castagna
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - M C Clementi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - G La Croce
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - C Regina
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - M Bianchi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - V Mirone
- Department of Urology, University of Naples Federico II, Naples, Italy
| | - R Damiano
- Research Doctorate Program in Urology, Magna Graecia University, Catanzaro, Italy
| | - F Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - A Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
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Aguilar-Roa P, Echavarría-Sánchez M. Relación circunferencia abdominal e insulinorresistencia y su impacto en parámetros seminales. PERINATOLOGÍA Y REPRODUCCIÓN HUMANA 2016. [DOI: 10.1016/j.rprh.2016.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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36
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Assessment of semen quality in patients with androgenetic alopecia in an infertility clinic. DERMATOL SIN 2016. [DOI: 10.1016/j.dsi.2015.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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An Update on Oxidative Damage to Spermatozoa and Oocytes. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9540142. [PMID: 26942204 PMCID: PMC4749785 DOI: 10.1155/2016/9540142] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/28/2015] [Accepted: 01/11/2016] [Indexed: 01/23/2023]
Abstract
On the one hand, reactive oxygen species (ROS) are mandatory mediators for essential cellular functions including the function of germ cells (oocytes and spermatozoa) and thereby the fertilization process. However, the exposure of these cells to excessive levels of oxidative stress by too high levels of ROS or too low levels of antioxidative protection will render these cells dysfunctional thereby failing the fertilization process and causing couples to be infertile. Numerous causes are responsible for the delicate bodily redox system being out of balance and causing disease and infertility. Many of these causes are modifiable such as lifestyle factors like obesity, poor nutrition, heat stress, smoking, or alcohol abuse. Possible correctable measures include foremost lifestyle changes, but also supplementation with antioxidants to scavenge excessive ROS. However, this should only be done after careful examination of the patient and establishment of the individual bodily antioxidant needs. In addition, other corrective measures include sperm separation for assisted reproductive techniques. However, these techniques have to be carried out very carefully as they, if applied wrongly, bear risks of generating ROS damaging the germ cells and preventing fertilization.
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Elsamanoudy AZ, Abdalla HA, Hassanien M, Gaballah MA. Spermatozoal cell death-inducing DNA fragmentation factor-α-like effector A (CIDEA) gene expression and DNA fragmentation in infertile men with metabolic syndrome and normal seminogram. Diabetol Metab Syndr 2016; 8:76. [PMID: 27891185 PMCID: PMC5112663 DOI: 10.1186/s13098-016-0192-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 11/10/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This is the first study to investigate spermatozoal cell death-inducing DNA fragmentation factor-α-like effector A (CIDEA) gene expression and DNA fragmentations in the spermatozoa of men diagnosed with metabolic syndrome (MS) who have normal seminograms with unexplained infertility, and to correlate these parameters with seminal glucose concentration. METHODS This study included 120 participants: 75 male subjects with MS (38 fertile and 37 infertile), and a control group of 45 fertile males without MS. HOMA-IR, semen analysis, and biochemical measurement of seminal plasma insulin and glucose levels were carried out. Spermatozoal insulin gene and CIDEA gene expressions were performed by the RT-PCR method. The percentage of spermatozoal DNA fragmentation was also estimated. RESULTS The spermatozoal insulin and CIDEA gene expression, as well as the DNA fragmentation, were significantly higher in the infertile MS group than in the fertile MS group, and significantly higher in both the MS groups than in the control group. Seminal glucose concentration showed significant positive correlations with seminal insulin level, spermatozoa insulin, CIDEA gene expression, and DNA fragmentation. Moreover, there was a positive correlation between spermatozoa CIDEA gene expression and DNA fragmentation. CONCLUSIONS It can be concluded that MS may affect male fertility at the molecular level, through its possible inducing effect of spermatozoa CIDEA and insulin gene expression, DNA fragmentation, and increased seminal glucose.
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Affiliation(s)
- Ayman Z. Elsamanoudy
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | | | - Mohammed Hassanien
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohammad A. Gaballah
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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A sustained high fat diet for two years decreases IgM and IL-1 beta in ageing Wistar rats. IMMUNITY & AGEING 2015; 12:12. [PMID: 26421054 PMCID: PMC4585810 DOI: 10.1186/s12979-015-0040-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 09/23/2015] [Indexed: 12/22/2022]
Abstract
Background The immune system undergoes several alterations of innate and adaptive immunity during ageing. The main features of the aged immune system are a reduced diversity of T cell receptors and a reduced activity of innate immune cells with subsequent changes in adaptive immunity resulting in a less effective, less specific, and dys-regulated immune response and in an increased susceptibility towards infection, malignancy, and autoimmunity. The process is referred to as immunosenescence and is also modulated by environmental modifiers, such as dietary factors. High fat diet (HFD), via direct modulation of immune cell function by fatty acids and/or increased body fat mass, influences immune function. However, it is not clear whether HFD is beneficial or detrimental for the functioning of the ageing immune system. Methods Male Wistar rats fed with either a high fat diet (HFD 43 en% of fat) or control diet (SD, 25 en% of fat) over up to 24 month and were analyzed for plasma IL-1β, IL-6, TNF, IgM, IgG1, IgA, IgG2a, IgG2b, IgG2c, light chains lambda and kappa, testosterone, prolactin and percentage of splenic B cells and apoptosis rate, respectively. Results In general, all analyzed immunoglobuline isotypes increased with age, except for IgA. This increase was attenuated by HFD. In HFD and SD rats the percentage of B cells in the spleen and also their apoptotic rate was lower in aged as compared to young animals with no additional diet-induced effect. Testosterone and prolactin levels were lower in old animals, as expected. There was a statistical trend towards an increased prolactin/testosterone ratio in middle aged (6–12 monthsnth) HFD rats as compared to SD. IL-6 was neither affected by HFD nor age. On the other hand, HFD rats showed a decrease in IL-1β as compared to SD, which correlated with the above-mentioned suppressive effect on immunoglobulin isotypes, especially IgM. Conclusion In Wistar rats, HFD reveals an immunosuppressive effect in ageing animals by decreasing immunoglobulins, especially IgM, and IL-1β when compared to SD.
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Infertility as a proxy of general male health: results of a cross-sectional survey. Fertil Steril 2015; 104:48-55. [DOI: 10.1016/j.fertnstert.2015.04.020] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/30/2015] [Accepted: 04/15/2015] [Indexed: 11/18/2022]
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