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Nielsen JLM, Majzoub A, Esteves S, Humaidan P. Unraveling the Impact of Sperm DNA Fragmentation on Reproductive Outcomes. Semin Reprod Med 2023; 41:241-257. [PMID: 38092034 DOI: 10.1055/s-0043-1777324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
In recent years, there has been a growing interest in identifying subcellular causes of male infertility, and sperm DNA fragmentation (SDF) research has been at the forefront of this focus. DNA damage can occur during spermatogenesis due to faulty chromatin compaction or excessive abortive apoptosis. It can also happen as sperm transit through the genital tract, often induced by oxidative stress. There are several methods for SDF testing, with the sperm chromatin structure assay, terminal deoxynucleotidyl transferase d-UTI nick end labeling (TUNEL) assay, comet assay, and sperm chromatin dispersion test being the most commonly used. Numerous studies strongly support the negative impact of SDF on male fertility potential. DNA damage has been linked to various morphological and functional sperm abnormalities, ultimately affecting natural conception and assisted reproductive technology outcomes. This evidence-based review aims to explore how SDF influences male reproduction and provide insights into available therapeutic options to minimize its detrimental impact.
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Affiliation(s)
- Jeanett L M Nielsen
- The Fertility Clinic, Skive Regional Hospital, Skive, Denmark
- Department of Obstetrics and Gynecology, Viborg Regional Hospital, Viborg, Denmark
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Clinical Urology, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Sandro Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Campinas, Brazil
- Division of Urology, Department of Surgery, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
- Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Peter Humaidan
- The Fertility Clinic, Skive Regional Hospital, Skive, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Kaltsas A, Dimitriadis F, Zachariou D, Zikopoulos A, Symeonidis EN, Markou E, Tien DMB, Takenaka A, Sofikitis N, Zachariou A. From Diagnosis to Treatment: Comprehensive Care by Reproductive Urologists in Assisted Reproductive Technology. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1835. [PMID: 37893553 PMCID: PMC10608107 DOI: 10.3390/medicina59101835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023]
Abstract
Infertility is a global health concern, with male factors playing an especially large role. Unfortunately, however, the contributions made by reproductive urologists in managing male infertility under assisted reproductive technology (ART) often go undervalued. This narrative review highlights the important role played by reproductive urologists in diagnosing and treating male infertility as well as any barriers they face when providing services. This manuscript presents a comprehensive review of reproductive urologists' role in managing male infertility, outlining their expertise in diagnosing and managing male infertility as well as reversible causes and performing surgical techniques such as sperm retrieval. This manuscript investigates the barriers limiting urologist involvement such as limited availability, awareness among healthcare professionals, and financial constraints. This study highlights a decrease in male fertility due to lifestyle factors like sedentary behavior, obesity, and substance abuse. It stresses the significance of conducting an evaluation process involving both male and female partners to identify any underlying factors contributing to infertility and to identify patients who do not require any interventions beyond ART. We conclude that engaging urologists more effectively in infertility management is key to optimizing fertility outcomes among couples undergoing assisted reproductive technology treatments and requires greater education among healthcare providers regarding the role urologists and lifestyle factors that could have an effect on male fertility.
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Affiliation(s)
- Aris Kaltsas
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Fotios Dimitriadis
- Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (F.D.); (E.N.S.)
| | - Dimitrios Zachariou
- Third Orthopaedic Department, National and Kapodestrian University of Athens, KAT General Hospital, 14561 Athens, Greece;
| | - Athanasios Zikopoulos
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Evangelos N. Symeonidis
- Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (F.D.); (E.N.S.)
| | - Eleftheria Markou
- Department of Microbiology, University Hospital of Ioannina, 45500 Ioannina, Greece;
| | - Dung Mai Ba Tien
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh City 70000, Vietnam;
| | - Atsushi Takenaka
- Division of Urology, Department of Surgery, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan;
| | - Nikolaos Sofikitis
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Athanasios Zachariou
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
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Houda A, Peter Michael J, Romeo M, Mohamad Eid H. Smoking and Its Consequences on Male and Female Reproductive Health. Stud Fam Plann 2022. [DOI: 10.5772/intechopen.104941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Smoking contributes to the death of around one in 10 adults worldwide. Specifically, cigarettes are known to contain around 4000 toxins and chemicals that are hazardous in nature. The negative effects of smoking on human health and interest in smoking-related diseases have a long history. Among these concerns are the harmful effects of smoking on reproductive health. Thirteen percent of female infertility is due to smoking. Female smoking can lead to gamete mutagenesis, early loss of reproductive function, and thus advance the time to menopause. It has been also associated with ectopic pregnancy and spontaneous abortion. Even when it comes to assisted reproductive technologies cycles, smokers require more cycles, almost double the number of cycles needed to conceive as non-smokers. Male smoking is shown to be correlated with poorer semen parameters and sperm DNA fragmentation. Not only active smokers but also passive smokers, when excessively exposed to smoking, can have reproductive problems comparable to those seen in smokers. In this book chapter, we will approach the effect of tobacco, especially tobacco smoking, on male and female reproductive health. This aims to take a preventive approach to infertility by discouraging smoking and helping to eliminate exposure to tobacco smoke in both women and men.
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Sperm concentration and semen volume increase after smoking cessation in infertile men. Int J Impot Res 2022; 34:614-619. [PMID: 35963898 PMCID: PMC9375087 DOI: 10.1038/s41443-022-00605-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022]
Abstract
Smoking has negative reproductive consequences. This study investigated the effect of smoking cessation on the main semen parameters. We included 90 participants who applied to our infertility clinic and smoked at least 20 cigarettes a day for at least 1 year. Of the 90 participants, 48 were in the study group and 42 were in the control group. Semen analysis was performed before and at least 3 months after quitting smoking in the study group. Semen analysis was repeated at baseline and at least 3 months later in the control group. Semen parameters such as volume, sperm concentration, total sperm count, morphology, and motility were evaluated according to the World Health Organization criteria. Patient characteristics as well as the duration of the smoking period, the number of cigarettes smoked per day and the time elapsed since smoking cessation were recorded. The mean age of the participants was 34.69 ± 5.3 years, and the duration of infertility was 34.12 ± 12.1 months (n = 90). The number of cigarettes smoked per day was 30.14 ± 6.69, and the smoking time was 8.31 ± 3.53 years. The average time to quit smoking was 104.2 ± 11.51 days (n = 48). A significant increase in semen volume, sperm concentration and total sperm count was observed 3 months after smoking cessation (2.48 ± 0.79 ml vs. 2.90 ± 0.77 ml, p = 0.002; 18.45 × 106/ml ± 8.56 vs. 22.64 × 106/ml ± 11.69, p = 0.001; 45.04 ± 24.38 × 106 vs. 65.1 ± 34.9 × 106, p < 0.001, respectively). This study showed that smoking cessation had a positive effect on sperm concentration, semen volume, and total sperm count. Although smoking cessation contributed positively to sperm motility and morphology, the difference was not statistically significant.
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Agarwal A, Baskaran S, Parekh N, Cho CL, Henkel R, Vij S, Arafa M, Panner Selvam MK, Shah R. Male infertility. Lancet 2021; 397:319-333. [PMID: 33308486 DOI: 10.1016/s0140-6736(20)32667-2] [Citation(s) in RCA: 396] [Impact Index Per Article: 132.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
It is estimated that infertility affects 8-12% of couples globally, with a male factor being a primary or contributing cause in approximately 50% of couples. Causes of male subfertility vary highly, but can be related to congenital, acquired, or idiopathic factors that impair spermatogenesis. Many health conditions can affect male fertility, which underscores the need for a thorough evaluation of patients to identify treatable or reversible lifestyle factors or medical conditions. Although semen analysis remains the cornerstone for evaluating male infertility, advanced diagnostic tests to investigate sperm quality and function have been developed to improve diagnosis and management. The use of assisted reproductive techniques has also substantially improved the ability of couples with infertility to have biological children. This Seminar aims to provide a comprehensive overview of the assessment and management of men with infertility, along with current controversies and future endeavours.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Neel Parekh
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Chak-Lam Cho
- SH Ho Urology Center, Department of Surgery, Chinese University of Hong Kong, Hong Kong
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Medical Bioscience, University of Western Cape, Bellville, South Africa; Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Sarah Vij
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Mohamed Arafa
- Male Infertility Unit, Urology Department, Hamad Medical Corporation, Doha, Qatar; Andrology Department, Cairo University, Cairo, Egypt
| | | | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Center, Mumbai, India
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Sharma A, Minhas S, Dhillo WS, Jayasena CN. Male infertility due to testicular disorders. J Clin Endocrinol Metab 2021; 106:e442-e459. [PMID: 33295608 PMCID: PMC7823320 DOI: 10.1210/clinem/dgaa781] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 12/13/2022]
Abstract
CONTEXT Male infertility is defined as the inability to conceive following 1 year of regular unprotected intercourse. It is the causative factor in 50% of couples and a leading indication for assisted reproductive techniques (ART). Testicular failure is the most common cause of male infertility, yet the least studied to date. EVIDENCE ACQUISITION The review is an evidence-based summary of male infertility due to testicular failure with a focus on etiology, clinical assessment, and current management approaches. PubMed-searched articles and relevant clinical guidelines were reviewed in detail. EVIDENCE SYNTHESIS/RESULTS Spermatogenesis is under multiple levels of regulation and novel molecular diagnostic tests of sperm function (reactive oxidative species and DNA fragmentation) have since been developed, and albeit currently remain as research tools. Several genetic, environmental, and lifestyle factors provoking testicular failure have been elucidated during the last decade; nevertheless, 40% of cases are idiopathic, with novel monogenic genes linked in the etiopathogenesis. Microsurgical testicular sperm extraction (micro-TESE) and hormonal stimulation with gonadotropins, selective estrogen receptor modulators, and aromatase inhibitors are recently developed therapeutic approaches for men with the most severe form of testicular failure, nonobstructive azoospermia. However, high-quality clinical trials data is currently lacking. CONCLUSIONS Male infertility due to testicular failure has traditionally been viewed as unmodifiable. In the absence of effective pharmacological therapies, delivery of lifestyle advice is a potentially important treatment option. Future research efforts are needed to determine unidentified factors causative in "idiopathic" male infertility and long-term follow-up studies of babies conceived through ART.
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Affiliation(s)
- Aditi Sharma
- Section of Endocrinology and Investigative Medicine, Imperial College London, UK
| | - Suks Minhas
- Department of Urology, Charing Cross Hospital, London, UK
| | - Waljit S Dhillo
- Section of Endocrinology and Investigative Medicine, Imperial College London, UK
| | - Channa N Jayasena
- Section of Endocrinology and Investigative Medicine, Imperial College London, UK
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Krzastek SC, Farhi J, Gray M, Smith RP. Impact of environmental toxin exposure on male fertility potential. Transl Androl Urol 2021; 9:2797-2813. [PMID: 33457251 PMCID: PMC7807371 DOI: 10.21037/tau-20-685] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Idiopathic infertility is the most common individual diagnosis in male infertility, representing nearly 44% of cases. Research studies dating over the last half-century consistently demonstrate a decline in male fertility that is incompletely explained by obesity, known genetic causes, or diet and lifestyle changes alone. Human exposures have changed dramatically over the same time course as this fertility decline. Synthetic chemicals surround us. Some are benevolent; however, many are known to cause disruption of the hypothalamic-pituitary-gonadal axis and impair spermatogenesis. More than 80,000 chemicals are registered with the United States National Toxicology Program and nearly 2,000 new chemicals are introduced each year. Many of these are known toxins, such as phthalates, polycyclic aromatic hydrocarbons, aromatic amines, and organophosphate esters, and have been banned or significantly restricted by other countries as they carry known carcinogenic effects and are reproductively toxic. In the United States, many of these chemicals are still permissible in exposure levels known to cause reproductive harm. This contrasts to other chemical regulatory legislature, such as the European Union’s REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations which are more comprehensive and restrictive. Quantification of these diverse exposures on an individual level has proven challenging, although forthcoming technologies may soon make this data available to consumers. Establishing causality and the proportion of idiopathic infertility attributable to environmental toxin exposures remains elusive, however, continued investigation, avoidance of exposure, and mitigation of risk is essential to our reproductive health. The aim of this review is to examine the literature linking changes in male fertility to some of the most common environmental exposures. Specifically, pesticides and herbicides such as dichlorodiphenyltrichloroethane (DDT), dibromochloropropane (DBCP), organophosphates and atrazine, endocrine disrupting compounds including plastic compounds phthalates and bisphenol A (BPA), heavy metals, natural gas/oil, non-ionizing radiation, air and noise pollution, lifestyle factors including diet, obesity, caffeine use, smoking, alcohol and drug use, as well as commonly prescribed medications will be discussed.
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Affiliation(s)
- Sarah C Krzastek
- Department of Urology, University of Virginia, Charlottesville, VA, USA.,Division of Urology, Virginia Commonwealth University, Richmond, VA, USA.,Division of Urology, Hunter Holmes McGuire VAMC, Richmond, VA, USA
| | - Jack Farhi
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Marisa Gray
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Ryan P Smith
- Department of Urology, University of Virginia, Charlottesville, VA, USA
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Jayasena CN, Sharma A, Abbara A, Luo R, White CJ, Hoskin SG, Khanjani S, Crawford MJ, Ramsay JW, Minhas S, Dhillo WS. Burdens and awareness of adverse self-reported lifestyle factors in men with sub-fertility: A cross-sectional study in 1149 men. Clin Endocrinol (Oxf) 2020; 93:312-321. [PMID: 32362009 DOI: 10.1111/cen.14213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/07/2020] [Accepted: 04/20/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND There are no current pharmacological therapies to improve sperm quality in men with sub-fertility. Reducing the exposure to lifestyle risk factor (LSF) is currently the only intervention for improving sperm quality in men with sub-fertility. No previous study has investigated what proportion of men with sub-fertility are exposed to adverse lifestyle factors. Furthermore, it is not known to what extent men with sub-fertility are aware of lifestyle factors potentially adversely impacting their fertility. METHODS A cross-sectional anonymous questionnaire-based study on self-reported exposure and awareness of LSF was conducted in 1149 male partners of couples investigated for sub-fertility in a tertiary andrology centre in London, UK. RESULTS Seventy per cent of men investigated for sub-fertility had ≥1 LSF, and twenty-nine per cent had ≥2 LSF. Excessive alcohol consumption was the most common LSF (40% respondents). Seventeen per cent of respondents used recreational drugs (RD) regularly, but only 32% of RD users believed RD impair male fertility. Twenty-five per cent of respondents were smokers, which is higher than the UK average (20%). Twenty-seven per cent of respondents had a waist circumference (WC) >36 inches (91 cm), and 4% had WC >40 inches (102 cm). Seventy-nine per cent of respondents wanted further lifestyle education to improve their fertility. CONCLUSIONS Our data suggest that men with sub-fertility are as follows: (a) exposed to one or more LSF; (b) have incomplete education about how LSF may cause male sub-fertility; (c) want more education about reducing LSF. Further studies are needed to investigate the potential of enhanced education of men about LSF to treat couples with sub-fertility.
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Affiliation(s)
| | - Aditi Sharma
- Section of Investigative Medicine, Imperial College, London, UK
| | - Ali Abbara
- Section of Investigative Medicine, Imperial College, London, UK
| | - Rong Luo
- Section of Investigative Medicine, Imperial College, London, UK
| | | | - Sophie G Hoskin
- Section of Investigative Medicine, Imperial College, London, UK
| | - Shirin Khanjani
- Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | | | | | | | - Waljit S Dhillo
- Section of Investigative Medicine, Imperial College, London, UK
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Colpi GM, Francavilla S, Haidl G, Link K, Behre HM, Goulis DG, Krausz C, Giwercman A. European Academy of Andrology guideline Management of oligo-astheno-teratozoospermia. Andrology 2018; 6:513-524. [DOI: 10.1111/andr.12502] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 12/14/2022]
Affiliation(s)
- G. M. Colpi
- Department of Andrology and IVF; San Carlo Clinic; Paderno-Dugnano/Milano Italy
| | - S. Francavilla
- Department of Life, Health and Environmental Sciences; University of L’ Aquila; L’ Aquila Italy
| | - G. Haidl
- Department of Dermatology/Andrology Unit; University of Bonn; Bonn Germany
| | - K. Link
- Department of Translational Medicine and Reproductive Medicine Centre; Lunds University and Skane University Hospital; Malmö Sweden
| | - H. M. Behre
- Center for Reproductive Medicine and Andrology; University Hospital; Martin Luther University Halle-Wittenberg; Halle Germany
| | - D. G. Goulis
- Unit of Reproductive Endocrinology; 1st Department of Obstetrics and Gynecology; Medical School; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - C. Krausz
- Department of Experimental and Clinical Biomedical Sciences ‘Mario Serio’; Centre of Excellence DeNothe; University of Florence; Florence Italy
| | - A. Giwercman
- Department of Translational Medicine and Reproductive Medicine Centre; Lunds University and Skane University Hospital; Malmö Sweden
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Bendayan M, Alter L, Swierkowski-Blanchard N, Caceres-Sanchez L, Selva J, Robin G, Boitrelle F. [Environment and lifestyle: Impacts on male fertility?]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2018; 46:47-56. [PMID: 29198589 DOI: 10.1016/j.gofs.2017.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Indexed: 12/23/2022]
Abstract
In this last century, an increase of men infertility has been registered. It has been suggested that environmental factors could a negative impact over sperm quality. Among these factors, impact of environmental toxicant has been spread by media. In this review of scientific literature, we identify several environmental factors that could impact men fertility in a negative way. These factors are tobacco, marijuana, weight, body mass index, heat, nutritional state, electromagnetic waves and altitude. For each of these factors, the impact over men fertility, their mechanism, as well their influence over the use of Assisted Reproductive Technics are reported.
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Affiliation(s)
- M Bendayan
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France.
| | - L Alter
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France
| | - N Swierkowski-Blanchard
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France
| | - L Caceres-Sanchez
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France
| | - J Selva
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France
| | - G Robin
- Service de médecine de la reproduction, CHRU de Lille, 59000 Lille, France
| | - F Boitrelle
- Service d'assistance médicale à la procréation-Biologie de la reproduction, hôpital de Poissy, 78300 Poissy, France; EA 7404-GIG, UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, Paris Saclay, 78180 Montigny-le-Bretonneux, France
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Oboni JB, Marques-Vidal P, Bastardot F, Vollenweider P, Waeber G. Impact of smoking on fertility and age of menopause: a population-based assessment. BMJ Open 2016; 6:e012015. [PMID: 27864244 PMCID: PMC5128850 DOI: 10.1136/bmjopen-2016-012015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND AND AIMS Studies in patients seeking medically assisted reproduction have shown that smoking reduces fertility, but little information is available in the general population. We assessed the associations between smoking and the number of children, childbearing planning and age at menopause in a representative sample of the population of Lausanne, Switzerland. METHODS Data from 6711 participants (3530 women, age range 35-75 years) collected between 2003 and 2006 and again in 2009 and 2012. Smoking status, number of offsprings and age of menopause were assessed. RESULTS Women who currently smoke had significantly less children than former or never smokers: the number of children per women (average±SD) was 1.38±1.05, 1.45±1.07 and 1.576±1.16, respectively (p<0.001). Women who currently smoke had their first child at an earlier age than the others: 26.7±5.2, 27.4±5.4 and 26.9±5.2 years old for current, former and never smokers, respectively, (p=0.01). Similar findings were found for men: number of children per men 1.475±1.16, 1.67±1.13 and 1.55±1.22 for current, former and never smokers, respectively (p<0.001); no difference was found regarding age at the first child. The difference persisted after multivariate adjustment (adjusted for age, body mass index, Caucasian origins, alcohol consumption, caffeinated drinks consumption, educational level, receiving social help and women taking contraceptives) for the age at first child among women. No association was found between Heaviness of Smoking Index and the number of children among current smokers in both genders. Women who smoke had their menopause more than 1 year prior than never-smoking women (48.9±0.2 years compared with 47.8±0.3 years, respectively, p=0.002). CONCLUSIONS Smoking is associated with an earlier age of having the first child and of menopause among women.
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Affiliation(s)
- Jean-Baptiste Oboni
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Pedro Marques-Vidal
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - François Bastardot
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Peter Vollenweider
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Gérard Waeber
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
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12
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Pásztor N, Kárpáti K, Szöllősi J, Keresztúri M, Kozinszky Z, Gorzó I, Radnai M. Association between periodontal status and idiopathic male infertility. J Oral Sci 2016; 58:247-53. [DOI: 10.2334/josnusd.15-0586] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Norbert Pásztor
- Department of Obstetrics and Gynecology, Medical Faculty, University of Szeged
| | - Krisztina Kárpáti
- Department of Prosthodontics, Faculty of Dentistry, University of Szeged
| | - János Szöllősi
- Department of Obstetrics and Gynecology, Medical Faculty, University of Szeged
| | | | | | - István Gorzó
- Department of Periodontology, Faculty of Dentistry, University of Szeged
| | - Márta Radnai
- Department of Prosthodontics, Department of Dentistry, Oral and Maxillofacial Surgery, University of Pécs Medical School
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Collins GG, Rossi BV. The impact of lifestyle modifications, diet, and vitamin supplementation on natural fertility. FERTILITY RESEARCH AND PRACTICE 2015; 1:11. [PMID: 28620516 PMCID: PMC5424364 DOI: 10.1186/s40738-015-0003-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 07/16/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Infertility is a relatively common condition. When patients are confronted with this diagnosis, there are medical, psychological, and financial sequelae. Patients often wonder if there is anything they can do to optimize their natural fertility or increase the effectiveness of infertility treatments. FINDINGS If there is a clear impact on fertility, such as with smoking and alcohol, cessation should be advised. Similarly, weight loss should be recommended if the BMI is in the overweight and obese category, and weight gain should be recommended for an underweight BMI. The evidence surrounding other lifestyle modifications is less clear. There are conflicting data regarding an optimal fertility diet and consumption of vitamins and supplements. Antioxidants seem to improve semen parameters in men, but the effect on female fertility is less clear. If conflicting evidence exists, such as with caffeine consumption or exercise, moderation should be emphasized. Finally, the diagnosis of infertility and subsequent fertility treatments are stressful for both partners. The psychological aspects should not be ignored and methods such as yoga and cognitive behavioral therapy may be beneficial. CONCLUSION Continued research will determine the optimal lifestyle modifications to achieve pregnancy.
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Affiliation(s)
- Gretchen Garbe Collins
- Department of Obstetrics and Gynecology, University Hospitals/ Case Western Reserve School of Medicine, 1000 Auburn Drive, Suite 310, Beachwood, OH 44122 USA
| | - Brooke V Rossi
- Department of Obstetrics and Gynecology, University Hospitals/ Case Western Reserve School of Medicine, 1000 Auburn Drive, Suite 310, Beachwood, OH 44122 USA
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Do some addictions interfere with fertility? Fertil Steril 2015; 103:22-6. [DOI: 10.1016/j.fertnstert.2014.11.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/31/2014] [Accepted: 11/04/2014] [Indexed: 01/08/2023]
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Barazani Y, Katz BF, Nagler HM, Stember DS. Lifestyle, Environment, and Male Reproductive Health. Urol Clin North Am 2014; 41:55-66. [DOI: 10.1016/j.ucl.2013.08.017] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Omu AE. Sperm parameters: paradigmatic index of good health and longevity. Med Princ Pract 2013; 22 Suppl 1:30-42. [PMID: 24051979 PMCID: PMC5586815 DOI: 10.1159/000354208] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 07/09/2013] [Indexed: 12/19/2022] Open
Abstract
Since the discovery of spermatozoon by Anton van Leeuwenhoek in 1677, there has been an ever increasing understanding of its role in reproduction. Many factors adversely affect sperm quality, including varicocele, accessory gland infection, immunological factors, congenital abnormalities, and iatrogenic systemic and endocrine causes, such as diabetes mellitus, obesity, metabolic syndrome, and smoking. The mechanisms responsible for the association between poor sperm parameters and ill health may include oxidative stress, low-grade inflammation, low testosterone, and low sex-hormone-binding globulin. Oxidative stress in the testicular microenvironment may result in decreased spermatogenesis and sperm DNA damage, loss of sperm motility, and abnormal sperm morphology. Low testosterone caused by advanced age, visceral obesity, and inflammation is associated with the development of cardiovascular disease. Hence, semen analysis has an important role in the routine evaluation of idiopathic male infertility, usually manifested as low sperm counts, impaired sperm motility, or absence of sperm, and remains the most common single diagnostic tool. Several studies have shown an inverse relationship between semen quality and medical disorders. This review elucidates the effect of medical disorders and social habits on sperm quality, the mechanisms that are involved in the impairment of sperm quality, and whether or not sperm quality can be used as an index of good health and longevity in a man.
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Affiliation(s)
- Alexander E. Omu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait
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Kanďár R, Drábková P, Myslíková K, Hampl R. Determination of retinol and α-tocopherol in human seminal plasma using an HPLC with UV detection. Andrologia 2013; 46:472-8. [DOI: 10.1111/and.12103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2013] [Indexed: 11/30/2022] Open
Affiliation(s)
- R. Kanďár
- Department of Biological and Biochemical Sciences; Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - P. Drábková
- Department of Biological and Biochemical Sciences; Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - K. Myslíková
- Department of Biological and Biochemical Sciences; Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - R. Hampl
- Sanus; In Vitro Fertilization Clinic; Pardubice Czech Republic
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Current World Literature. Curr Opin Obstet Gynecol 2012; 24:194-9. [DOI: 10.1097/gco.0b013e328353d51d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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