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Elahwany A, Alahwany H, Torad H, Ramzy D, Aboelkomsan EAF, GamalEl Din SF. Secondary azoospermia after a successful natural pregnancy: a primary prospective study. Basic Clin Androl 2024; 34:12. [PMID: 39103792 DOI: 10.1186/s12610-024-00227-0] [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: 01/23/2024] [Accepted: 04/24/2024] [Indexed: 08/07/2024] Open
Abstract
BACKGROUND To date, there is a lack of studies conducted on males with secondary azoospermia as a potential cause of male infertility who had previously fathered children through natural conception. The current study aims to investigate the potential causes of secondary azoospermia as a presentation of male infertility as well as the prognostic factors that can impact sperm retrieval rate (SRR) while undergoing microdissection testicular sperm extraction (microTESE). RESULTS Thirty two patients were recruited from the andrology outpatient clinic from August 2023 till January 2024. The mean age of the patients was sixty-two years old. All patients had varicoceles. Twenty seven patients (84%) had palpable varicocele grade 2 and 3 on both sides. Further multivariate logistic regression analysis of the significant factors in the univariate regression revealed that younger age (OR 0.7, 95% C.I. 0.7-1.0, p = 0.03) and having a history of coronary artery disease (CAD) were predictable factors for negative TESE outcome (OR 123.1, 95% C.I. 3.2-4748.5, P = 0.01). CONCLUSION It appears that the etiopathogenesis of secondary azoospermia are multifactorial. Varicocele and CAD are major factors to be considered. Future studies should be implemented deploying larger pools of patients suffering from the same condition to affirm the findings of this primary study.
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Affiliation(s)
- Amr Elahwany
- Department of Andrology and STDs Kasr Al-Ainy, Sexual medicine and STIs department, Faculty of Medicine, Cairo University, Al-Saray Street, El Manial, Cairo, 11956, Egypt
- Nile center for IVF, Cairo, Egypt
| | | | - Hesham Torad
- Department of Urology, Faculty of medicine, Cairo University, Cairo, Egypt
| | - David Ramzy
- Department of Andrology and STDs Kasr Al-Ainy, Sexual medicine and STIs department, Faculty of Medicine, Cairo University, Al-Saray Street, El Manial, Cairo, 11956, Egypt
| | | | - Sameh Fayek GamalEl Din
- Department of Andrology and STDs Kasr Al-Ainy, Sexual medicine and STIs department, Faculty of Medicine, Cairo University, Al-Saray Street, El Manial, Cairo, 11956, Egypt.
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Abedpoor N, Taghian F, Hajibabaie F. Exploring the dynamics of exercise intensity on male fertility and reproductive health: advancements and implications for fertility research. FRONTIERS IN REPRODUCTIVE HEALTH 2024; 6:1423916. [PMID: 39091284 PMCID: PMC11291361 DOI: 10.3389/frph.2024.1423916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024] Open
Abstract
On a global scale, 15% of couples experience infertility. Approximately 50% of these cases refer to male infertility. This literature review investigated the effects of exercise activities on male fertility and reproductive health. This subject was explored using studies conducted on human and animal models. Physical activity is widely recognized to improve overall well-being, but engaging in excessive exercise might potentially lead to male infertility due to the negative impact on hypothalamic-pituitary-testicular (HPT) function, increased oxidative stress, and the presence of chronic inflammation. Infertility might result from the fundamental factors that induce a decline in testosterone production and semen quality. Physical activity has the potential strategy to enhance male fertility in cases of infertility caused by obesity and diabetes. Exercise enhances spermatogenesis and semen quality in lifestyle-induced infertility by increasing testicular antioxidant defense, reducing pro-inflammatory cytokines, and promoting steroidogenesis.
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Affiliation(s)
- Navid Abedpoor
- Department of Sports Physiology, Faculty of Sports Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
- Department of Physiology, Medicinal Plants Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Farzaneh Taghian
- Department of Sports Physiology, Faculty of Sports Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Fatemeh Hajibabaie
- Department of Physiology, Medicinal Plants Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
- Department of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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Rastegar Panah M, Jarvi K, Lo K, El-Sohemy A. Vitamin B 12 Is Associated with Higher Serum Testosterone Concentrations and Improved Androgenic Profiles Among Men with Infertility. J Nutr 2024:S0022-3166(24)00352-3. [PMID: 38936552 DOI: 10.1016/j.tjnut.2024.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 06/04/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Infertility impacts 16% of North American couples, with male factor infertility contributing to ∼30% of cases. Reproductive hormones, especially testosterone, are essential for spermatogenesis. An age-independent population-level decline in testosterone concentrations over the past few decades has been proposed to be a consequence of diet and lifestyle changes. Vitamin B12 is present in the testes and has been suggested as an adjuvant nutritional therapy for male infertility due to its potential to improve sperm parameters. However, evidence examining the relationship between vitamin B12 and reproductive hormones is limited. OBJECTIVES The objective was to cross-sectionally examine the relationship between serum vitamin B12 and male reproductive hormones (luteinizing hormone, follicular stimulating hormone, total testosterone, estradiol, and prolactin). METHODS Men with infertility (n = 303) were recruited from Mount Sinai Hospital in Toronto, Canada. Serum was analyzed for vitamin B12 and reproductive hormones. Statistical analyses included nonparametric Spearman's rank correlation coefficient, linear regression, logistic regression, and effect modification by age and BMI linear regressions. RESULTS An independent monotonic relationship between serum vitamin B12 and total testosterone (ρ = 0.19, P = 0.001) was observed. Serum vitamin B12 was linearly associated with total testosterone (unadjusted β = 0.0007, P = 0.008 and adjusted β = 0.0005, P = 0.03). Compared to individuals in the lowest tertile of serum vitamin B12, those in the middle tertile (adjusted odds ratio [OR] = 0.48; 95% confidence interval [CI]: 0.25, 0.93, P = 0.03) and the highest tertile (unadjusted OR = 0.41; 95% CI: 0.22, 0.77, P = 0.005 and adjusted OR = 0.44; 95% CI: 0.22, 0.87, P = 0.02) had reduced odds of testosterone deficiency. CONCLUSIONS These findings suggest that among men with infertility, low serum vitamin B12 is associated with a higher risk of testosterone deficiency and impaired androgenic hormonal profiles that impact spermatogenesis and consequently, fertility.
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Affiliation(s)
| | - Keith Jarvi
- Department of Urology, Murray Koffler Urologic Wellness Center, Mount Sinai Hospital, Toronto, Canada
| | - Kirk Lo
- Department of Urology, Murray Koffler Urologic Wellness Center, Mount Sinai Hospital, Toronto, Canada
| | - Ahmed El-Sohemy
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada.
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Al-Madhagi H, Tarabishi AA. Nutritional aphrodisiacs: Biochemistry and Pharmacology. Curr Res Food Sci 2024; 9:100783. [PMID: 38974844 PMCID: PMC11225857 DOI: 10.1016/j.crfs.2024.100783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/08/2024] [Accepted: 06/10/2024] [Indexed: 07/09/2024] Open
Abstract
In 2022, the global prevalence of erectile dysfunction (ED) was estimated to be at least 150 million cases. This number is greatly suspected to be underestimate as most men withhold information about ED. Also, about 15% of world population have infertility troubles, and male factors are responsible for almost half of these cases. Studies have shown that the quality of semen has decreased in the past several decades owing to various health factors and environmental toxicants. The current medical interventions involve the inhibition of phosphodiesterase 5 which suffer from serious side effects and costly. One of the popular and most sought interventions are the natural and nutritional remedies as they are foods in essence and potentially with no harm to the body. Therefore, the goal of this paper is to provide a review of the most common nutritional aphrodisiacs with increasing libido and fertility highlighting the potential active constituents as well as the underlying mechanisms.
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Fan S, Zhang Z, Wang H, Luo L, Xu B. Associations between tobacco inhalation and semen parameters in men with primary and secondary infertility: a cross-sectional study. Front Endocrinol (Lausanne) 2024; 15:1396793. [PMID: 38808116 PMCID: PMC11130400 DOI: 10.3389/fendo.2024.1396793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/19/2024] [Indexed: 05/30/2024] Open
Abstract
Objective To examine the impact of tobacco smoking on seminal parameters in men with both primary and secondary infertility. Methods This cross-sectional study analyzed 1938 infertile men from China who were categorized as nonsmokers (n=1,067) and smokers (n=871), with the latter group further divided into moderate smokers (1-10 cigarettes per day) (n=568) and heavy smokers (>10 cigarettes per day) (n=303). We assessed semen volume, concentration, total sperm count, progressive motility, and normal morphology following World Health Organization (WHO 2010) guidelines. A logistic regression model was used to analyze the relationships between smoking and seminal parameters while also controlling for lifestyle factors. Results The analysis demonstrated a statistically significant correlation between smoking and adverse seminal parameters in both primary and secondary infertility patients. Specifically, primary infertile men who smoked had a lower semen concentration, with heavy smokers showing a median sperm concentration of 59.2×10^6/ml compared to 68.6×10^6/ml in nonsmokers (P=0.01). The secondary infertile men who smoked exhibited reduced forward sperm motility, with heavy smokers demonstrating a median progressive motility of 44.7%, which was significantly lower than the 48.1% observed in nonsmokers (P=0.04). Conclusion Smoking is significantly associated with detrimental effects on seminal parameters in infertile men, thus highlighting the need for cessation programs as part of fertility treatment protocols. Encouraging smoking cessation could substantially improve semen quality and fertility outcomes in this population.
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Affiliation(s)
| | | | | | - Lei Luo
- Reproductive Medicine Center & Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Bo Xu
- Reproductive Medicine Center & Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
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Kiani Z, Simbar M, Rashidi F, Zayeri F, Banaderakhsh H. The quality of life of men experiencing infertility: a systematic review. BMC Public Health 2024; 24:1236. [PMID: 38705989 PMCID: PMC11070083 DOI: 10.1186/s12889-024-18758-6] [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: 09/21/2023] [Accepted: 05/02/2024] [Indexed: 05/07/2024] Open
Abstract
BACKGROUND Men experiencing infertility encounter numerous problems at the individual, family, and social levels as well as quality of life (QOL). This study was designed to investigate the QOL of men experiencing infertility through a systematic review. MATERIALS AND METHODS This systematic review was conducted without any time limitation (Retrieval date: July 1, 2023) in international databases such as Scopus, Web of Science, PubMed, and Google Scholar. The search was performed by two reviewers separately using keywords such as QOL, infertility, and men. Studies were selected based on inclusion and exclusion criteria. The quality of the articles were evaluated based on the Newcastle-Ottawa Scale. In the initial search, 308 studies were reviewed, and after removing duplicates and checking the title and abstract, the full text of 87 studies were evaluated. RESULTS Finally, 24 studies were included in the final review based on the research objectives. Based on the results, men's QOL scores in different studies varied from 55.15 ± 13.52 to 91.45 ± 13.66%. Of the total reviewed articles, the lowest and highest scores were related to mental health problems and physical dimensions, respectively. CONCLUSION The reported findings vary across various studies conducted in different countries. Analysis of the factors affecting these differences is necessary, and it is recommended to design a standard tool for assessing the quality of life of infertile men. Given the importance of the QOL in men experiencing infertility, it is crucial to consider it in the health system. Moreover, a plan should be designed, implemented and evaluated according to each country's contex to improve the quality of life of infertile men.
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Affiliation(s)
- Zahra Kiani
- Midwifery and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoumeh Simbar
- Midwifery and Reproductive Health Research Center, Department of Midwifery, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Farzaneh Rashidi
- Department of Midwifery, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Farid Zayeri
- Proteomics Research Center, Department of Biostatistics, Faculty of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homayoon Banaderakhsh
- Department of Anesthesia and Operating Room, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Rastegar Panah M, Jarvi K, Lo K, El-Sohemy A. Biomarkers of Iron Are Associated with Anterior-Pituitary-Produced Reproductive Hormones in Men with Infertility. Nutrients 2024; 16:290. [PMID: 38257183 PMCID: PMC10819645 DOI: 10.3390/nu16020290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Approximately 16% of North American couples are affected by infertility, with 30% of cases being attributable to male factor infertility. The regulation of reproductive hormones via the hypothalamic-pituitary-gonadal axis is important for spermatogenesis and subsequently male fertility. Maintaining iron homeostasis is critical to normal reproductive physiological function. This cross-sectional study's objective was to determine the association between serum biomarkers of iron and reproductive hormones. Men experiencing infertility (n = 303) were recruited from Mount Sinai Hospital, Toronto. Serum was analyzed for iron and ferritin as biomarkers of iron status and reproductive hormones (follicle-stimulating hormone, luteinizing hormone, testosterone, estradiol, and prolactin), which were the primary outcome. Associations were determined using non-parametric Spearman's rank correlation coefficient, linear regressions, and logistic regressions. A significant independent monotonic inverse relationship between serum iron and prolactin (p = 0.0002) was found. In linear regression analyses, iron was inversely associated with luteinizing hormone (unadjusted p = 0.03, adjusted p = 0.03) and prolactin (unadjusted p = 0.001 and adjusted p = 0.003). Serum ferritin was inversely associated with both gonadotropins, follicle-stimulating hormone (adjusted p = 0.03), and luteinizing hormone (adjusted p = 0.02). These findings suggest that biomarkers of iron are associated with pituitary-produced reproductive hormones, which play a role in the hypothalamic-pituitary-gonadal signaling pathway involved in spermatogenesis, testicular testosterone production, and male fertility.
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Affiliation(s)
- Matineh Rastegar Panah
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Medical Sciences Building, 5th Floor, Room 5326A, 1 King’s College Circle, Toronto, ON M5S 1A8, Canada;
| | - Keith Jarvi
- Murray Koffler Urologic Wellness Centre, Department of Urology, Mount Sinai Hospital, 60 Murray Street, 6th Floor, Toronto, ON M5T 3L, Canada
| | - Kirk Lo
- Murray Koffler Urologic Wellness Centre, Department of Urology, Mount Sinai Hospital, 60 Murray Street, 6th Floor, Toronto, ON M5T 3L, Canada
| | - Ahmed El-Sohemy
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Medical Sciences Building, 5th Floor, Room 5326A, 1 King’s College Circle, Toronto, ON M5S 1A8, Canada;
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Liu L, Zhang M, Jiang F, Luo D, Liu S, Su Y, Guan Q, Yu C. High cholesterol diet-induced testicular dysfunction in rats. Hormones (Athens) 2023; 22:685-694. [PMID: 37596375 DOI: 10.1007/s42000-023-00472-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 07/20/2023] [Indexed: 08/20/2023]
Abstract
PURPOSE Hypercholesterolemia due to a high-cholesterol diet is linked to numerous diseases and may lead to male infertility. However, the underlying mechanism remains unknown. The maintenance of male fertility requires intact testicular structures (including seminiferous tubules and mesenchyme) and functioning cells (Leydig cells, Sertoli cells and germ cells, etc.), production of appropriate concentrations of sex hormones, and cooperation among testicular cells. Thus, we considered whether male fertility declined as the structure and function of testicular cells were altered in rats on a high-cholesterol diet. METHODS Male Sprague Dawley rats were fed either a standard or a high-cholesterol diet for 16 weeks. Serum sex hormones, lipid components, semen quality, and fertility rate were assayed in the rats. The 3β-hydroxysteroid dehydrogenase (3β-HSD), Wilms tumor 1 (WT-1), and deleted in azoospermia-like (DAZL) were regarded as specific markers of Leydig, Sertoli, and germ cells in rats. In addition, the ultrastructure of the testis and expression levels of particular marker molecules of testicular cells were further investigated. RESULTS Compared to rats fed on a regular diet, the serum testosterone levels and sperm progressive motility decreased in rats fed high cholesterol. Moreover, we observed a deformed nucleus, dilated smooth endoplasmic reticulum, and swollen mitochondria of Leydig cells and a schizolytic nucleus of Sertoli cells in rats on a high-cholesterol diet. The 3β-HSD, WT-1, and DAZL protein expression levels were significantly reduced in rats on a high-cholesterol diet. CONCLUSIONS Our results showed that a high-cholesterol diet adversely affected testosterone production and sperm progressive motility, possibly due to Leydig, Sertoli, and germ cell abnormalities.
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Affiliation(s)
- Luna Liu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Meijie Zhang
- Jing'an District Center Hospital, Fudan University, Shanghai, 200433, China
| | - Fangjie Jiang
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Department of Rehabilitation, Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200092, People's Republic of China
| | - Dandan Luo
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Shuang Liu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Yu Su
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Qingbo Guan
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Chunxiao Yu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong University, Jinan, 250021, Shandong, China.
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Institute of Endocrine and Metabolic disease, Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China.
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Mai H, Ke J, Zheng Z, Luo J, Li M, Qu Y, Jiang F, Cai S, Zuo L. Association of diet and lifestyle factors with semen quality in male partners of Chinese couples preparing for pregnancy. Reprod Health 2023; 20:173. [PMID: 37996913 PMCID: PMC10666430 DOI: 10.1186/s12978-023-01718-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Semen quality significantly influences conception, and its preservation is crucial for couples seeking pregnancy. We investigated dietary and lifestyle risk factors impacting semen quality. METHODS A total of 466 males from the Guangzhou Women and Children's Medical Center's pre-pregnancy consultation clinic were recruited between January 2021 and March 2023 for inclusion. Semen analysis was performed, and diet and lifestyle data were gathered via questionnaire. Logistic regression was utilized to examine the link between diet, lifestyle variables, and semen quality. RESULTS Smoking worsened progressive sperm motility (38.0% vs. 36.0%, t = 2.262; P = 0.049). Alcohol consumption impaired progressive motility (40.5 ± 17.8% vs. 34.7 ± 16.1%, t = 3.396; P < 0.001) and total motility (56.0% vs. 64.0%; P = 0.001). Using plastic beverage bottles for oil or seasonings lowered sperm concentrations (40.4% vs. 59.0% vs. 65.5%; P = 0.032). A sweet diet correlated with higher total sperm motility (55.0% vs. 60.0%, 62.0% vs. 63.2%; P = 0.017). Higher milk product intake improved sperm concentration (41.6106 vs. 63.7106 vs. 66.1*106; P = 0.021) and motility (54.5% vs. 56.0% vs. 63.0%; P = 0.033). More frequent egg consumption increased semen volume (3.1 mL vs. 3.8 mL vs. 4.0 mL; P = 0.038). Roughage intake enhanced sperm concentration (160.8106 vs. 224.6106; P = 0.027), and adequate sleep improved progressive sperm motility rate (35.4% ± 18.2% vs. 40.2 ± 16.3%, F = 3.747; P = 0.024) and total motility (52.7% vs. 61.5%; P = 0.013). The regression model showed that using plastic containers for condiments was a protective factor for semen volume (OR: 0.12; CI 0.03-0.55; P = 0.006), sperm concentration (OR: 0.001, CI 0.00-0.30; P = 0.012), and count (OR: 0.12, CI 0.03-0.48; P = 0.003). Milk and egg consumption were also protective for semen volume (OR: 0.18, CI 0.06-0.51; P = 0.001 and OR: 0.11, CI 0.03-0.55; P = 0.006, respectively), while sufficient sleep benefitted total sperm motility (OR: 0.47, CI 0.24-0.95; P = 0.034). CONCLUSIONS Smoking and drinking, type of condiment container, diet preference, sleep duration, and milk, roughage, and egg consumption may reduce semen quality.
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Affiliation(s)
- Hanran Mai
- Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Junyi Ke
- Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Zilin Zheng
- Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Jieyi Luo
- Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Miaomiao Li
- Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Yanxia Qu
- Department of Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Fan Jiang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, Guangdong, China
| | - Simian Cai
- Department of Science, Education and Data Management, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, Guangdong, China
| | - Liandong Zuo
- Department of Andrology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China.
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Eisenberg ML, Esteves SC, Lamb DJ, Hotaling JM, Giwercman A, Hwang K, Cheng YS. Male infertility. Nat Rev Dis Primers 2023; 9:49. [PMID: 37709866 DOI: 10.1038/s41572-023-00459-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/09/2023] [Indexed: 09/16/2023]
Abstract
Clinical infertility is the inability of a couple to conceive after 12 months of trying. Male factors are estimated to contribute to 30-50% of cases of infertility. Infertility or reduced fertility can result from testicular dysfunction, endocrinopathies, lifestyle factors (such as tobacco and obesity), congenital anatomical factors, gonadotoxic exposures and ageing, among others. The evaluation of male infertility includes detailed history taking, focused physical examination and selective laboratory testing, including semen analysis. Treatments include lifestyle optimization, empirical or targeted medical therapy as well as surgical therapies that lead to measurable improvement in fertility. Although male infertility is recognized as a disease with effects on quality of life for both members of the infertile couple, fewer data exist on specific quantification and impact compared with other health-related conditions.
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Affiliation(s)
- Michael L Eisenberg
- Department of Urology, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Obstetrics & Gynecology, Stanford University School of Medicine, Stanford, CA, USA.
| | - Sandro C Esteves
- ANDROFERT Andrology and Human Reproduction Clinic, Campinas, Brazil
- Division of Urology, Department of Surgery, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Dolores J Lamb
- Center for Reproductive Genomics, Weill Cornell Medical College, New York, NY, USA
- Englander Institute for Precision Medicine, Weill Cornell Medical College, New York, NY, USA
- Department of Urology, Weill Cornell Medical College, New York, NY, USA
| | - James M Hotaling
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | | | - Kathleen Hwang
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Salas-Huetos A, Mitsunami M, Wang S, Mínguez-Alarcón L, Ribas-Maynou J, Yeste M, Souter I, Chavarro JE. Women's Adherence to Healthy Dietary Patterns and Outcomes of Infertility Treatment. JAMA Netw Open 2023; 6:e2329982. [PMID: 37594758 PMCID: PMC10439476 DOI: 10.1001/jamanetworkopen.2023.29982] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/28/2023] [Indexed: 08/19/2023] Open
Abstract
Importance Increasing evidence suggests that specific foods and nutrients may improve infertility treatment outcomes in women. However, less is known about the role of dietary patterns. Objective To investigate whether women's adherence to a priori-defined dietary patterns promoted for the prevention of chronic conditions is associated with outcomes of infertility treatment. Design, Setting, and Participants This prospective cohort study was conducted at a fertility center at an academic medical center in Boston, Massachusetts. Women undergoing infertility treatment cycles, including intrauterine insemination cycles and in vitro fertilization with or without intracytoplasmic sperm injection were included. Data were collected from January 2007 to October 2019, and data were analyzed from February to December 2022. Exposures Women's pretreatment diet was assessed with a validated food frequency questionnaire from which 8 a priori-defined scores were calculated (higher score indicates greater adherence): (1) Trichopoulou Mediterranean diet, (2) alternate Mediterranean diet, (3) Panagiotakos Mediterranean diet, (4) Healthy Eating Index, (5) Alternate Healthy Eating Index, (6) American Heart Association (AHA) index, (7) Dietary Approaches to Stop Hypertension index, and (8) plant-based diet. Main Outcomes and Measures The adjusted probability of clinically relevant outcomes (live birth as a primary outcome and clinical pregnancy and pregnancy loss as secondary outcomes) was evaluated across quartiles of adherence to each dietary pattern using multivariable generalized linear mixed models to account for repeated cycles. Results This analysis included 612 women with a median (IQR) age of 35.0 (32.0-38.0) years. There was no association between women's adherence to the 8 a priori dietary patterns and probability of clinical pregnancy or live birth following in vitro fertilization or intrauterine insemination. However, an inverse association was found between adherence to AHA dietary pattern and risks of total and clinical pregnancy loss. Among women who became pregnant during the course of infertility treatment, the adjusted probabilities of pregnancy loss in the lowest and highest quartile of the AHA dietary pattern were 0.41 (95% CI, 0.33-0.50) and 0.28 (95% CI, 0.21-0.36), respectively (P for trend = .02). The corresponding adjusted probabilities of clinical pregnancy loss were 0.30 (95% CI, 0.22-0.39) and 0.15 (95% CI, 0.10-0.23) (P for trend = .007). A similar pattern was observed for all other dietary patterns, with the exception of the plant-based diet pattern. Conclusions and Relevance Findings of this cohort study suggest that preconception adherence to the AHA diet may be associated with a lower likelihood of pregnancy loss during the course of infertility treatment.
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Affiliation(s)
- Albert Salas-Huetos
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
- Unit of Preventive Medicine and Public Health, Alimentació, Nutrició, Desenvolupament i Salut Mental, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
- Consorcio Centro de Investigación Biomédica en Red, M.P. Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Makiko Mitsunami
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Siwen Wang
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Lidia Mínguez-Alarcón
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jordi Ribas-Maynou
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Faculty of Sciences, Department of Biology, University of Girona, Girona, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Faculty of Sciences, Department of Biology, University of Girona, Girona, Spain
| | - Irene Souter
- Massachusetts General Hospital Fertility Center and Harvard Medical School, Boston
| | - Jorge E. Chavarro
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
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12
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Rastegar Panah M, Tahir I, Garcia-Bailo B, Lo K, Jarvi K, El-Sohemy A. Ascorbic acid is associated with favourable hormonal profiles among infertile males. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1143579. [PMID: 37361344 PMCID: PMC10285163 DOI: 10.3389/frph.2023.1143579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/28/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction Infertility affects about 16% of North American couples, with the male factor contributing to ∼30% of cases. Reproductive hormones play an integral role in regulating the reproductive system and consequently, fertility. Oxidative stress reduces testosterone synthesis, and reduction in oxidative stress can improve hormone profiles. Ascorbic acid is a potent antioxidant that accounts for up to 65% of seminal antioxidant activity; however, its effects on reproductive hormones in humans are unknown. Methods The objective was to determine the association between serum ascorbic acid concentrations and male reproductive hormones. We conducted a cross-sectional study involving infertile males (n = 302) recruited from Mount Sinai Hospital, Toronto. Serum was analyzed for ascorbic acid, luteinizing hormone (LH), follicular stimulating hormone (FSH), total testosterone (TT), prolactin and estradiol. Statistical analyses included Spearman's rank correlations, linear regressions, logistic regressions, simple slope and Johnson-Neyman procedures. Results After adjusting for covariates, ascorbic acid was inversely associated with LH (P = 0.01). Ascorbic acid was positively associated with TT only among males over the age of 41.6 years (P = 0.01). Discussion Our findings show that ascorbic acid is associated with higher testosterone levels and improved androgenic status in infertile males, and some of the effects appear to be age dependent.
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Affiliation(s)
- Matineh Rastegar Panah
- El-Sohemy Lab, Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Irtaza Tahir
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Bibiana Garcia-Bailo
- El-Sohemy Lab, Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Kirk Lo
- Murray Koffler Urologic Wellness Centre, Division of Urology, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Keith Jarvi
- Murray Koffler Urologic Wellness Centre, Division of Urology, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Ahmed El-Sohemy
- El-Sohemy Lab, Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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13
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Manvelyan E, Abittan B, Shan W, Shahani D, Kwait B, Rausch M, Blitz MJ. Socioeconomic disparities in fertility treatments and associated likelihood of livebirth following in vitro fertilization. Arch Gynecol Obstet 2023; 308:265-271. [PMID: 37099092 DOI: 10.1007/s00404-023-07030-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/27/2023] [Indexed: 04/27/2023]
Abstract
OBJECTIVE To determine whether neighborhood-level socioeconomic characteristics are associated with the likelihood of livebirth (LB) following in vitro fertilization (IVF). Specifically, we evaluated neighborhood-level household income, unemployment rate, and educational attainment. DESIGN A retrospective cross-sectional study was conducted for patients undergoing autologous IVF cycles. SETTING Large academic health system. INTERVENTIONS For each patient, ZIP code of residence was used as a proxy for neighborhood. Neighborhood characteristics were compared between patients with and without LB. Generalized estimating model was used to adjust the association between SES factors and likelihood of a live birth with respect to relevant clinical factors. RESULTS A total of 4942 autologous IVF cycles from 2768 patients were included: 1717 (62.0%) had at least one associated LB. Patients who achieved LB from IVF were younger, had higher anti-Mullerian hormone (AMH) levels, lower body mass index (BMI), and differed by ethnic background, primary language, and neighborhood socioeconomic characteristics. In a multivariable model, language, age, AMH, and BMI were associated with a live birth from IVF. None of the neighborhood-level socioeconomic variables were associated with the total number of IVF cycles or cycles required to achieve first LB. CONCLUSION Patients living in neighborhoods with lower annual household income have lower odds of livebirth after IVF compared to those living in more affluent areas, despite undergoing the same number of IVF stimulation cycles.
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Affiliation(s)
- Evelina Manvelyan
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA.
- Department of Obstetrics and Gynecology, Northwell Health, South Shore University Hospital, 301 E Main Str., Bay Shore, NY, 11706, USA.
| | - Baruch Abittan
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
- Division of Reproductive Endocrinology and Infertility, Northwell Health, North Shore University Hospital, Manhasset, NY, USA
| | - Weiwei Shan
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
| | - Disha Shahani
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
| | - Brittany Kwait
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
| | - Mary Rausch
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
- Division of Reproductive Endocrinology and Infertility, Northwell Health, North Shore University Hospital, Manhasset, NY, USA
| | - Matthew J Blitz
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Obstetrics and Gynecology, Hempstead, NY, USA
- Department of Obstetrics and Gynecology, Northwell Health, South Shore University Hospital, 301 E Main Str., Bay Shore, NY, 11706, USA
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Diabetes-Induced Autophagy Dysregulation Engenders Testicular Impairment via Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:4365895. [PMID: 36778206 PMCID: PMC9918358 DOI: 10.1155/2023/4365895] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 11/01/2022] [Accepted: 11/24/2022] [Indexed: 02/05/2023]
Abstract
Testes produce sperms, and gamete generation relies on a proper niche environment. The disruption of hierarchical regulatory homeostasis in Leydig or Sertoli cells may evoke a sterile phenotype in humans. In this study, we recapitulated type 2 diabetes mellitus by using a high-fat diet- (HFD-) fed mouse model to identify the phenotype and potential mechanism of diabetes-induced testicular impairment. At the end of the study, blood glucose levels, testosterone structure, testicular antioxidant capacity, and testosterone level and the expression of hypoxia-inducible factor- (HIF-) 1α, apoptosis-related protein cleaved-caspase3, and autophagy-related proteins such as LC3I/II, p62, and Beclin1 were evaluated. We found that long-term HFD treatment causes the development of diabetes mellitus, implicating increased serum glucose level, cell apoptosis, and testicular atrophy (P < 0.05 vs. Ctrl). Mechanistically, the results showed enhanced expression of HIF-1α in both Sertoli and Leydig cells (P < 0.05 vs. Ctrl). Advanced glycation end products (AGEs) were demonstrated to be a potential factor leading to HIF-1α upregulation in both cell types. In Sertoli cells, high glucose treatment had minor effects on Sertoli cell autophagy. However, AGE treatment stagnated the autophagy flux and escalated cell apoptosis (P < 0.05 vs. Ctrl+Ctrl). In Leydig cells, high glucose treatment was adequate to encumber autophagy induction and enhance oxidative stress. Similarly, AGE treatment facilitated HIF-1α expression and hampered testosterone production (P < 0.05 vs. Ctrl+Ctrl). Overall, these findings highlight the dual effects of diabetes on autophagy regulation in Sertoli and Leydig cells while imposing oxidative stress in both cell types. Furthermore, the upregulation of HIF-1α, which could be triggered by AGE treatment, may negatively affect both cell types. Together, these findings will help us further understand the molecular mechanism of diabetes-induced autophagy dysregulation and testicular impairment, enriching the content of male reproductive biology in diabetic patients.
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Iktidar MA, Chowdhury S, Roy S, Islam AMK, Islam M, Chowdhury T, Tabassum MN, Ali TS, Akash A, Ahmed M, Zafar FA, Hawlader MDH. Knowledge, attitude and perception among medical students and healthcare professionals regarding male infertility: a cross-sectional survey from Bangladesh. BMJ Open 2022; 12:e062251. [PMID: 36356990 PMCID: PMC9660710 DOI: 10.1136/bmjopen-2022-062251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE This study aimed to explore the knowledge, attitude and behaviour regarding male infertility among medical students and healthcare workers in Bangladesh. DESIGN This was a cross-sectional study. SETTING This study covered eight divisions of Bangladesh. PARTICIPANTS The participants were medical students or healthcare professionals of Bangladesh who were surveyed anonymously on their knowledge, attitude and perception regarding male infertility. PRIMARY OUTCOME MEASURES The level of knowledge, attitude and perception regarding male infertility. ANALYSIS The mean knowledge and attitude scores were then correlated with sociodemographic factors using χ2 and two-independent sample t-tests. Finally, we performed binary logistic regression to explore predictors of good knowledge and positive attitude. RESULT Among 556 participants, 49.82% did not have good male infertility knowledge, and nearly 60.79% had negative attitudes regarding male infertility. Young (23-26 years) healthcare professionals and medical students were more likely to have good knowledge than others (OR: 1.81; 95% CI 1.099 to 2.988). Surprisingly, women were more likely to have a positive attitude (OR=1.48; 95% CI 1.002 to 2.19, p=0.049) than men. Among all the professions, Bachelor of Medicine and Surgery doctors were most likely to have good knowledge and a positive attitude regarding male infertility. Good knowledge of male infertility predicted a positive attitude (OR=1.61; 95% CI 1.105 to 2.346, p=0.013) and vice versa. CONCLUSION Our research found that healthcare professionals and medical students in Bangladesh had inadequate knowledge and negative attitudes regarding male infertility despite favourable opinions. This emphasises the need for interdisciplinary training programmes, standardisation of healthcare worker guidelines and curricular adjustments for medical students.
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Affiliation(s)
- Mohammad Azmain Iktidar
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
- School of Research, Chattogram, Bangladesh
| | - Sreshtha Chowdhury
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
- School of Research, Chattogram, Bangladesh
| | - Simanta Roy
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
- School of Research, Chattogram, Bangladesh
| | - A M Khairul Islam
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
| | - Mahzabeen Islam
- School of Research, Chattogram, Bangladesh
- Department of Medicine, Chittagong Medical College, Chittagong, Chittagong, Bangladesh
| | - Tonmoy Chowdhury
- School of Research, Chattogram, Bangladesh
- Department of Medicine, Rangamati Medical College, Chittagong, Bangladesh
| | - Mustari Nailah Tabassum
- School of Research, Chattogram, Bangladesh
- Department of Medicine, Chittagong Medical College, Chittagong, Chittagong, Bangladesh
| | - Tahsin Sumat Ali
- School of Research, Chattogram, Bangladesh
- Department of Medicine, Comilla Medical College, Comilla, Comilla, Bangladesh
| | - Atandra Akash
- School of Research, Chattogram, Bangladesh
- Department of Medicine, Chittagong Medical College, Chittagong, Chittagong, Bangladesh
| | - Mashrur Ahmed
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
- School of Research, Chattogram, Bangladesh
| | - Faraz Al Zafar
- Department of Public Health, North South University, Dhaka, Bangladesh
- Public Health Professional Development Society (PPDS), Dhaka, Bangladesh
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Krishan A, Vukina J, Pearce I, Modgil V. Male factor infertility: A contemporary overview of investigation, diagnosis and management. JOURNAL OF CLINICAL UROLOGY 2022. [DOI: 10.1177/20514158221078474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Infertility, defined as the failure to achieve a clinical pregnancy after 1 year of regular, unprotected sexual intercourse, is a public health issue of global concern. It affects up to 12% of couples worldwide. While traditionally, research and treatment have focused on female causes of infertility, male factors contribute to up to 70% of cases and therefore deserve appropriate recognition. The purpose of this comprehensive review is to detail the diagnostic work-up, investigations and management of male factor infertility. We discuss much-debated pathologies, such as varicocele, and novel investigations, including sperm DNA fragmentation and reactive oxygen species. Level of evidence: Not applicable
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Affiliation(s)
- Anil Krishan
- University Hospitals Birmingham NHS Foundation Trust, UK
| | - Josip Vukina
- University of Pittsburgh School of Medicine, USA
| | - Ian Pearce
- Manchester University NHS Foundation Trust, UK
| | - Vaibhav Modgil
- Manchester University NHS Foundation Trust, UK
- Department of Urology, Manchester Royal Infirmary, UK
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17
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Nagórska M, Lesińska-Sawicka M, Obrzut B, Ulman D, Darmochwał-Kolarz D, Zych B. Health Related Behaviors and Life Satisfaction in Patients Undergoing Infertility Treatment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159188. [PMID: 35954545 PMCID: PMC9367928 DOI: 10.3390/ijerph19159188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 02/05/2023]
Abstract
The aim of the study was to evaluate the level of life satisfaction and health behaviors presented by patients with diagnosed infertility. This cross-sectional study included 456 patients (235 women and 221 men) from infertile couples in southeastern Poland from June 2019 to February 2020. Participants completed a questionnaire on sociodemographic characteristics, the Health Behaviors Inventory (HBI), and the Satisfaction with Life Scale (SWLS). The average score of severity of health behaviors for the study group was 82.96 points. Satisfaction with life at a higher level was declared by 57.6% of respondents, at an average level was declared by 31.4%, and at a lower level was declared by 11%. The SWLS score for the entire study group was 24.11 points (6.82 points on the sten scale). Respondents who achieved a higher rate of life satisfaction also had a higher level of severity of health behaviors (p < 0.0001). There were no significant differences between male and female SWLS scores, although the women had significantly higher rates of severity of health behaviors than men. The level of health behavior is positively related to life satisfaction in infertile patients. Medical personnel should conduct health education on a healthy lifestyle that promotes the improvement of reproductive health.
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Affiliation(s)
- Małgorzata Nagórska
- Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (B.O.); (D.D.-K.)
- Correspondence: ; Tel.: +48-12-872-11-45
| | | | - Bogdan Obrzut
- Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (B.O.); (D.D.-K.)
| | - Dariusz Ulman
- Department of Obstetrics and Gynaecology, Pro-Familia Hospital, 35-001 Rzeszow, Poland;
| | - Dorota Darmochwał-Kolarz
- Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (B.O.); (D.D.-K.)
| | - Barbara Zych
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland;
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Liu Q, Wang H, Wang H, Li N, He R, Liu Z. Per1/Per2 Disruption Reduces Testosterone Synthesis and Impairs Fertility in Elderly Male Mice. Int J Mol Sci 2022; 23:ijms23137399. [PMID: 35806403 PMCID: PMC9266724 DOI: 10.3390/ijms23137399] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 11/22/2022] Open
Abstract
Circadian rhythm disorders caused by genetic or environmental factors lead to decreased male fertility but the mechanisms are poorly understood. The current study reports that the mechanism of Per1/Per2 Double knockout (DKO) reduced the reproductive capacity of elderly male mice. The sperm motility and spermatogenic capacity of male DKO mice were weak. Hormone-targeted metabolomics showed reduced plasma levels of free testosterone in DKO male mice compared with WT male mice. Transcriptomic analysis of testicular tissue showed the down-regulation of testosterone synthesis-related enzymes (Cyp11a1, Cyp17a1, Hsd17b3, Hsd3b1, and Star) in the steroid hormone synthesis pathway. Spermatogenesis genes, Tubd1 and Pafah1b were down-regulated, influencing tubulin dynamics and leading to impaired motility. Seleno-compound metabolic loci, Scly and Sephs2, were up-regulated and Slc7a11 and Selenop were down-regulated. Western-blotting showed that steroid acute regulatory protein (StAR) and p-CREB, PKA and AC1 were reduced in testicular tissue of DKO mice compared to WT. Therefore, Per1/Per2 disruption reduced testosterone synthesis and sperm motility by affecting the PKA-StAR pathway, leading to decreased fertility.
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Affiliation(s)
| | | | | | | | - Ruyi He
- Correspondence: (R.H.); (Z.L.)
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19
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Kearns ML, MacAindriu F, Reynolds CM. The Impact of Non-caloric Sweeteners on Male Fertility: A Systematic Review and Narrative Synthesis in Rodent Models. Front Nutr 2022; 9:854074. [PMID: 35836587 PMCID: PMC9274198 DOI: 10.3389/fnut.2022.854074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/30/2022] [Indexed: 12/09/2022] Open
Abstract
Understanding the factors which influence fertility is essential for developing appropriate nutritional recommendations for couples trying to conceive. Non-caloric sweeteners (NCS) are increasing in the food chain and despite being no/low calorie, several adverse metabolic consequences have been attributed to their consumption. Their effects on reproduction have been relatively under-researched, particularly in males. This review aims to systematically review the literature for evidence of the effect of NCS on male fertility in rodents, with sperm parameters (sperm quantity and quality) assessed as primary outcomes. Given the lack of information available in humans this review has been carried out using evidence from rodent models. Risk of bias assessment was carried out using the Syrcle risk of bias tool. Nine studies met the inclusion criteria. Forty-four percent showed a negative effect of NCS on male reproductive parameters compared with controls. The effects of NCS on fertility have been conflicting and selected studies have been heterogeneous in relation to study design. It is unclear if NCS has an impact on male reproductive function. There is a need for randomized controlled trials using a standardized protocol for analysis, to formulate a clear message in terms of male fertility.
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Affiliation(s)
- Michelle L. Kearns
- School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
- Conway Institute/Institute of Food and Health, University College Dublin, Dublin, Ireland
| | - Fionn MacAindriu
- School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Clare M. Reynolds
- School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
- Conway Institute/Institute of Food and Health, University College Dublin, Dublin, Ireland
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20
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Kim EJ, Nho JH. Lifestyle Interventions for Adults with Infertility. J Lifestyle Med 2022; 12:69-71. [PMID: 36157889 PMCID: PMC9490012 DOI: 10.15280/jlm.2022.12.2.69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/15/2022] [Indexed: 11/30/2022] Open
Abstract
With a significant increase in the age-standardized prevalence of infertile men and women, infertility has become a widespread global issue. Furthermore, infertility has led to increased stigma and disease burden. The causes of infertility include lifestyle factors such as obesity, an unbalanced diet, and physical activity. To increase the rate of successful pregnancy, infertile men and women must improve their health and fertility through lifestyle improvements.
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Affiliation(s)
- Eun Jin Kim
- College of Nursing, Jeonbuk National University, Jeonju, Korea
| | - Ju-Hee Nho
- College of Nursing, Jeonbuk National University, Jeonju, Korea
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21
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Consumption of Sugar-Sweetened or Artificially Sweetened Beverages and Semen Quality in Young Men: A Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020682. [PMID: 35055501 PMCID: PMC8775653 DOI: 10.3390/ijerph19020682] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Existing literature suggests that frequent consumption of sugar-sweetened drinks may be associated with lower semen quality. Studies performed in mice suggest a dose-response relationship between intake of saccharin or aspartame, two artificial sweeteners, and sperm and testis function. METHODS A cross-sectional study based on data from The Fetal Programming of Semen Quality (FEPOS) Cohort, including 1047 young men (mean age = 19 years) was performed. Each male participant completed an online questionnaire on health, health behavior and diet, and provided a semen sample. The associations between consumption of sugar-sweetened or artificially sweetened beverages (moderate ≥ 3 days/week; infrequent < 3 days/week) and semen quality were analyzed using a multivariable, negative, binomial regression model. RESULTS Sugar-sweetened or artificially sweetened beverage consumption was not strongly associated with either semen volume, sperm concentration, total sperm count or total motility in young men. The proportion of morphologically normal sperm was 11% lower (0.89 (95% CI 0.76, 1.04)) for moderate (≥3 days/week) consumption of artificially sweetened beverages relative to infrequent (<3 days/week). CONCLUSION Consumption of sugar-sweetened or artificially sweetened beverages, at the levels present in this study had limited effect on the measured markers of semen quality in young men.
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Haeri F, Nouri M, Nezamoleslami S, Moradi A, Ghiasvand R. Role of dietary antioxidants and vitamins intake in semen quality parameters: A cross-sectional study. Clin Nutr ESPEN 2022; 48:434-440. [DOI: 10.1016/j.clnesp.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 11/30/2021] [Accepted: 01/03/2022] [Indexed: 11/25/2022]
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Osadchuk L, Tipisova E, Kleshchev M, Gorenko I, Osadchuk A. Study of Semen Quality, Reproductive Hormone Levels, and Lipid Levels in Men From Arkhangelsk, a City in North of European Russia. Am J Mens Health 2021; 14:1557988320939714. [PMID: 32812503 PMCID: PMC7444128 DOI: 10.1177/1557988320939714] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Male populations in the European North of Russia have not previously been investigated for semen quality. The aim of this study was to evaluate semen parameters, reproductive hormone levels, and lipid levels in volunteers from the general urban population of the European North of Russia, to compare the data published for men from the neighboring Northern or Eastern European countries, and to evaluate associations between sperm quality and serum hormonal and lipid levels. Ninety-nine volunteers aged 23-63 years residing in the city of Archangelsk were enrolled in the study. All men had blood samples drawn and completed a questionnaire concerning their health status and lifestyle; 90 men delivered semen samples. The medians for semen volume, sperm concentration, progressive motility, and normal morphology were 3.0 ml, 42.12 million/ml, 43.8%, and 6.5%, respectively. Sperm parameters below normal threshold values were found in 38.9% of participants. It seems that the sperm quality in our study group was slightly worse than in men from Finland, Norway, Sweden, or Estonia, but very similar to that in men from Denmark or Poland. The significant negative correlations of luteinizing hormone levels and positive correlations of inhibin B levels with sperm concentration and progressive motility were revealed. Higher levels of luteinizing hormone and lower levels of inhibin B were found in participants with impaired compared to normal sperm quality. No reliable links were found between serum total cholesterol, triglyceride, high and low-density lipoprotein cholesterol, and semen parameters.
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Affiliation(s)
- Ludmila Osadchuk
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
| | - Elena Tipisova
- Laboratory of Endocrinology, N. Laverov Federal Center for Integrated Arctic Research, Arkhangelsk, Russia Federation
| | - Maxim Kleshchev
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
| | - Irina Gorenko
- Laboratory of Endocrinology, N. Laverov Federal Center for Integrated Arctic Research, Arkhangelsk, Russia Federation
| | - Alexander Osadchuk
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
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Bolotari M, Andreazzi AE, de Lade CG, Goncalves Costa VM, Guerra MDO, Peters VM. Effects of moderate intensity endurance training and high-intensity interval training on the reproductive parameters of wistar rats overfed in infancy. CHINESE J PHYSIOL 2021; 64:106-114. [PMID: 33938821 DOI: 10.4103/cjp.cjp_96_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Studies indicate that rapid weight gain at critical development stages, such as the lactation period, is associated with the development of obesity, cardiovascular diseases, and diabetes in the long term. In addition to metabolic changes during adulthood, overweight/obesity may influence reproductive function. Human and animal studies suggest that lifestyle changes through exercise and/or controlled diet result in improved semen quality in obese individuals. However, the relationship between exercise volume/intensity and reproductive capacity effects remains inconclusive. The present study aimed to evaluate the effects of moderate intensity endurance training and high-intensity interval training (HIIT) on the reproductive parameters of lactating overfed male Wistar rats. Postnatal overfeeding was induced by applying the litter size reduction method. Forty males Wistar rats were used, divided into four groups: one with control litters (CLs) (10 animals/litter-sedentary) and three with small litters (SLs) (4 animals/litter), divided into sedentary, moderate endurance training, and HIIT. Morphologic, metabolic, and reproductive variables were analyzed. SL sedentary group showed increased body weight, adiposity, and decreased relative weight of the seminal vesicle, prostate, and epididymis as well as changes in the insulin tolerance and oral glucose tolerance tests glycemic tests compared to CL sedentary group. Endurance and HIIT protocols were efficient in improving the glycemic metabolism, central fat accumulation of trained groups and did not affect reproductive parameters. Endurance and HIIT protocols proved to be effective in reversing these metabolic changes without impairing the evaluated reproductive parameters.
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Affiliation(s)
- Mariana Bolotari
- Department of Medicine, Postgraduate Health Program, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Ana Eliza Andreazzi
- Department of Medicine, Postgraduate Health Program, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Carlos Gabriel de Lade
- Department of Medicine, Postgraduate Health Program, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | | | - Martha de Oliveira Guerra
- Department of Medicine, Postgraduate Health Program, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Vera Maria Peters
- Department of Medicine, Postgraduate Health Program, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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da Cunha LMSDCP, Teixeira MYP, Daltro AFCS, Torquato Filho SE, de Assis RC, Celedonio RF, Pires LV, Maia CSC, Guedes MIF. Unbalance of Se and nutritional status in male infertility. JBRA Assist Reprod 2021; 25:202-208. [PMID: 33150782 PMCID: PMC8083850 DOI: 10.5935/1518-0557.20200067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 09/20/2020] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE To evaluate the selenium status and oxidative stress in male infertility cases selected from a private human reproduction center in the state of Ceará, Brazil. METHODS The present study had a cross-sectional quantitative approach, carried out between January and October 2013 at a Human Reproduction Center. The studied population was composed of 49 male individuals seen at the clinic, aged between 18 and 60 years. Blood samples were collected to measure serum selenium concentrations, erythrocyte activity and glutathione peroxidase. After medical diagnosis, the participants were divided into fertile and infertile groups. Blood samples were collected for establishing Se concentrations in plasma and erythrocytes, and measurements of the enzymatic activity of glutathione peroxidase in the erythrocytes. RESULT it resulted in 53.1% of fertile men and 46.9% of infertile men. The average age of the fertile group was 34.1 years and the infertile group was 37.3 years. Regarding the assessment of nutritional status, the scatter diagram of the infertility group showed a higher body mass index and waist circumference, showing that this group has a higher risk of global and abdominal obesity compared to the fertile group (p<0.0001, respectively). There were similarities between the groups regarding caloric intake, macronutrient and selenium intake. CONCLUSION We can conclude that the serum values of selenium, in excess and in deficiency, can be harmful to male fertility.
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Lopes F, Pinto-Pinho P, Gaivão I, Martins-Bessa A, Gomes Z, Moutinho O, Oliveira MM, Peixoto F, Pinto-Leite R. Sperm DNA damage and seminal antioxidant activity in subfertile men. Andrologia 2021; 53:e14027. [PMID: 33686676 DOI: 10.1111/and.14027] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/29/2021] [Accepted: 02/14/2021] [Indexed: 01/06/2023] Open
Abstract
Supraphysiological ROS levels can lead to apoptosis, lipid peroxidation, and DNA and protein damage. This pilot study aimed to investigate the sperm oxidative damage in subfertile men, to describe the relationship between the antioxidant system and ROS. Sixty-four semen samples were categorised according to the evaluated routine parameters (WHO, WHO laboratory manual for the examination and processing of human semen, 2010). Results were cross-referenced with the DNA damage [Comet (n = 53) and TUNEL (n = 49) assays], antioxidant enzyme activity [SOD (n = 51), CAT (n = 48) and GST (n = 48)], and content of total thiols (n = 36), lipid hydroperoxides (n = 35) and MDA (n = 31). Compared to pathospermic samples, normozoospermic presented 40%-45% fewer spermatozoa with fragmented DNA, 19% fewer hydroperoxides, and slightly higher total thiols and MDA levels. Asthenozoospermic/asthenoteratozoospermic samples had the lowest GST activity. SOD and CAT showed a similar trend. Our results evidenced significant positive correlations between DNA damage and immotile spermatozoa; SOD and CAT, GST and total thiols; CAT and GST; total thiols and sperm concentration; and MDA levels and head/midpiece abnormalities and hydroperoxides. This work contributes to the existing body of knowledge by showing that the oxidative status correlates with the classic sperm analysis parameters. Oxidative stress and DNA damage evaluation might be a valuable diagnostic and prognostic tool in cases of idiopathic male subfertility.
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Affiliation(s)
- Fernando Lopes
- School of Health and Care Professions, University of Portsmouth, Portsmouth, UK
| | - Patrícia Pinto-Pinho
- Genetics/Andrology Laboratory, Centro Hospitalar de Trás-os-Montes e Alto Douro, E.P.E, Vila Real, Portugal.,CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,Laboratory of Signal Transduction, Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Isabel Gaivão
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,CECAV, Animal and Veterinary Research Centre, UTAD, Vila Real, Portugal
| | - Ana Martins-Bessa
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.,CECAV, Animal and Veterinary Research Centre, UTAD, Vila Real, Portugal
| | - Zélia Gomes
- Obstetrics Service, Centro Hospitalar de Trás-os-Montes e Alto Douro, E.P.E, Vila Real, Portugal
| | - Osvaldo Moutinho
- Obstetrics Service, Centro Hospitalar de Trás-os-Montes e Alto Douro, E.P.E, Vila Real, Portugal
| | - Maria Manuel Oliveira
- CQVR, Centro de Química de Vila Real, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Francisco Peixoto
- CQVR, Centro de Química de Vila Real, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Rosário Pinto-Leite
- Genetics/Andrology Laboratory, Centro Hospitalar de Trás-os-Montes e Alto Douro, E.P.E, Vila Real, Portugal
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Abstract
Modifiable lifestyle-related risk factors are the object of increasing attention, with a view to primary and tertiary prevention, to limit the onset and development of diseases.Also in the urological field there is accumulating evidence of the relationship between urological diseases and lifestyle-related risk factors that can influence their incidence and prognosis. Risk factors such as nutrition, physical activity, sexual habits, tobacco smoking, or alcohol consumption can be modified to limit morbidity and reduce the social impact and the burdensome costs associated with diagnosis and treatment.This review synthesizes the current clinical evidence available on this topic, trying to satisfy the need for a summary on the relationships between the most important lifestyle factors and the main benign urological diseases, focusing on benign prostatic hyperplasia (BPH), infections urinary tract (UTI), urinary incontinence (UI), stones, erectile dysfunction, and male infertility.
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Affiliation(s)
- Riccardo Bientinesi
- Department of Urology, Agostino Gemelli Hospital Foundation - IRCCS, Catholic University Medical School, Rome, Italy
| | - Carlo Gandi
- Department of Urology, Agostino Gemelli Hospital Foundation - IRCCS, Catholic University Medical School, Rome, Italy
| | - Luigi Vaccarella
- Department of Urology, Agostino Gemelli Hospital Foundation - IRCCS, Catholic University Medical School, Rome, Italy
| | - Emilio Sacco
- Department of Urology, Agostino Gemelli Hospital Foundation - IRCCS, Catholic University Medical School, Rome, Italy
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Jiao W, Sun J, Zhang X, An Q, Fu L, Xu W, Xie H, Tang X, Liu J, Hu W, Gu Y, Zhang K. Improvement of Qilin pills on male reproductive function in tripterygium glycoside-induced oligoasthenospermia in rats. Andrologia 2021; 53:e13923. [PMID: 33583046 DOI: 10.1111/and.13923] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/01/2020] [Accepted: 11/05/2020] [Indexed: 11/28/2022] Open
Abstract
This study established an oligoasthenospermic rat model using tripterygium glycosides (TGs) and investigated the mechanism by which Qilin pills (QLPs) ameliorate reproductive hypofunction. Thirty-two male Sprague Dawley rats were allocated to four equal-sized groups: (1) the control group received continuous physiological levels of saline; (2) the oligoasthenospermia model group was induced with TGs by daily intragastric administration for 28 days; (3 and 4) oligoasthenospermic rats were treated intragastrically with low dose (1.62 g kg-1 d-1 ) and high dose (3.24 g kg-1 d-1 ) of QLPs once daily for 60 days. The QLP-treated rats showed a marked increase (p < .05) in testicular mass, testicular index and semen parameters compared with the untreated rats. Histopathologically, the QLP-treated groups exhibited restored seminiferous tubules in contrast to the model group. Reactive oxygen species and malondialdehyde levels were dramatically decreased (p < .05) in the testes of the QLP-treated rats. QLP treatment partly reverted (p < .05) the circulatory levels of reproductive hormones (FSH, LH, testosterone, prolactin and SHBG) and hepatic and renal function (AST, Cr and urea). Our results showed that oral QLP treatment had a curative effect on the testicular mass, sperm quality, testicular pathomorphology, antioxidants, plasmatic hormones, and liver and renal function of rats.
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Affiliation(s)
- Wei Jiao
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jianling Sun
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaofei Zhang
- Department of Education and Training, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qi An
- National Health and Family Planning Key Laboratory of Male Reproductive Health, Department of Male Clinical Research, National Research Institute for Family Planning, Beijing.,Graduate School of Peking Union Medical College, Beijing, China
| | - Longlong Fu
- National Health and Family Planning Key Laboratory of Male Reproductive Health, Department of Male Clinical Research, National Research Institute for Family Planning, Beijing
| | - Wenbing Xu
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hongli Xie
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiuming Tang
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jianxin Liu
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Weihong Hu
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yiqun Gu
- National Health and Family Planning Key Laboratory of Male Reproductive Health, Department of Male Clinical Research, National Research Institute for Family Planning, Beijing
| | - Kaishu Zhang
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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29
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Effects of a Lifestyle Change Intervention on Semen Quality in Healthy Young Men Living in Highly Polluted Areas in Italy: The FASt Randomized Controlled Trial. Eur Urol Focus 2021; 8:351-359. [PMID: 33579652 DOI: 10.1016/j.euf.2021.01.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/24/2020] [Accepted: 01/25/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Human semen quality is affected by lifestyle and environmental factors. OBJECTIVE To evaluate the short-term effects of a diet and physical activity intervention on semen quality of healthy young men living in highly polluted areas of Italy. DESIGN, SETTING, AND PARTICIPANTS A randomized controlled trial was conducted. Healthy young men were assigned to an intervention or a control group. INTERVENTION A 4-mo Mediterranean diet and moderate physical activity program. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary outcomes were sperm concentration, motility and morphology, concentration of round cells, and semen total antioxidant capacity. Secondary outcomes were adherence to Mediterranean diet and physical activity. All outcomes were measured twice, at the enrollment (t0) and at the end of the intervention (t4). RESULTS AND LIMITATIONS A total of 263 individuals attended all visits, and underwent examinations and laboratory analyses: 137 in the intervention group and 126 in the control group. The adherence to Mediterranean diet and physical activity level increased more in the intervention group than in the control group from t0 to t4. Sperm concentration, total and progressive motility, and proportion of normal morphology cells increased in the intervention group but decreased in the control group, with statistically significant differences between the two groups at t4. The total antioxidant capacity increased in the intervention group but decreased in the control group, from t0 to t4. CONCLUSIONS Study results showed that an intervention based on Mediterranean diet and regular physical activity can determine an improvement of semen quality in healthy young men. PATIENT SUMMARY Our study aimed to evaluate the effect of a lifestyle intervention on semen quality of healthy young men. We assigned the 263 enrolled individuals to an intervention or a control group. The intervention group followed a 4-mo Mediterranean diet and moderate physical activity program, at the end of which the participants showed an improvement of semen quality parameters.
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30
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Salas-Huetos A, James ER, Salas-Salvadó J, Bulló M, Aston KI, Carrell DT, Jenkins TG. Sperm DNA methylation changes after short-term nut supplementation in healthy men consuming a Western-style diet. Andrology 2020; 9:260-268. [PMID: 32966683 DOI: 10.1111/andr.12911] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/14/2020] [Accepted: 09/16/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Many environmental and lifestyle factors have been implicated in the decline of sperm quality, with diet being one of the most plausible factors identified in recent years. Moreover, several studies have reported a close association between the alteration of specific sperm DNA methylation signatures and semen quality. OBJECTIVES To evaluate the effect of tree nut consumption on sperm DNA methylation patterns in healthy individuals reporting eating a Western-style diet. MATERIAL AND METHODS This is a post hoc analysis conducted in a subset of participants (healthy, non-smoking, and young) from the FERTINUTS 14-wk randomized-controlled, parallel trial, recruited between December 2015 and February 2017. The participants included in the current study (n = 72) were randomly selected in a proportion 2:1 from the original FERTINUTS trial between the 98 participants that completed the entire dietary intervention (nut group, n = 48; control group, n = 24). Sperm DNA methylation patterns were examined at baseline and after 14 weeks in 48 individuals consuming 60 g/d of mixed nuts (nut group) and in 24 individuals following the usual Western-style diet avoiding consumption of nuts (control group). RESULTS Over the course of the trial, no significant changes in global methylation were observed between groups. However, in the nut group, we identified 36 genomic regions that were significantly differentially methylated between the baseline and the end of the trial and 97.2% of the regions displayed hypermethylation. We identified no such change in the control group over the same period of time. We also utilized the recently developed germ line age calculator to determine if nut consumption resulted in alterations to the epigenetic age of cells and no significant differences were found. DISCUSSION AND CONCLUSION Adding nuts to a regular Western-style diet subtly impacts sperm DNA methylation in specific regions, demonstrating that there are some sperm epigenome regions that could respond to diet.
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Affiliation(s)
- Albert Salas-Huetos
- Human Nutrition Unit, Biochemistry and Biotechnology Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Reus, Spain.,Institut d'Investigació Sanitària Pere i Virgili (IISPV), Reus, Spain.,Consorcio CIBER, M.P., Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Emma R James
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jordi Salas-Salvadó
- Human Nutrition Unit, Biochemistry and Biotechnology Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Reus, Spain.,Institut d'Investigació Sanitària Pere i Virgili (IISPV), Reus, Spain.,Consorcio CIBER, M.P., Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Hospital Universitari Sant Joan de Reus (HUSJR), Reus, Spain
| | - Mònica Bulló
- Human Nutrition Unit, Biochemistry and Biotechnology Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Reus, Spain.,Institut d'Investigació Sanitària Pere i Virgili (IISPV), Reus, Spain.,Consorcio CIBER, M.P., Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Kenneth I Aston
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Douglas T Carrell
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Timothy G Jenkins
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Physiology and Developmental Biology, Brigham Young University, Provo, UT, USA
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31
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Influence of Lifestyle and Environmental Factors on Semen Quality in Ghanaian Men. Int J Reprod Med 2020; 2020:6908458. [PMID: 33150165 PMCID: PMC7603604 DOI: 10.1155/2020/6908458] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 12/30/2022] Open
Abstract
Introduction Male infertility is known to contribute about half of all infertility cases. In Ghana, the prevalence of male infertility is higher (15.8%) than in females (11.8%). Sperm quality is associated with the likelihood of pregnancy and known to be the cause of male fertility problems 90% of the time. Exposure to certain environmental factors reduces semen quality in men. The study examined the effects of environmental and lifestyle factors on semen quality in Ghanaian men. Materials and Methods This was a cross-sectional study involving 80 apparent healthy adult males in their reproductive age. Participants were males referred to the laboratory (Immunology Unit of the Korle-Bu Teaching Hospital) for semen analysis test and/or culture and sensitivity. Participants were made to fill out a questionnaire which entailed selected environmental factors (accidents or trauma, exposure to chemicals, radiation, and heat) and lifestyle habits (including alcohol consumption, smoking, and whether participants sat more or less than 4 hours per day). Semen samples were then collected by masturbation into sterile containers and analysed in accordance with WHO guidance for semen analysis within 60 minutes after ejaculation and collection. Results About 69% of participants had semen pH within the normal range compared to 15% whose pH were lower than 7.2. There was a significantly high number of immotile sperm cells (p value = 0.017) in participants who sat for more than 4 hours as compared to those that sat for less than 4 hours in a day. Active sperm motility and viability showed significant increase (p value = 0.002 and 0.009, respectively) in participants who kept their cell phones in their side pockets. Smoking produced a twofold decrease in sperm count as smokers had a significantly lower sperm count (12.28 ± 10.95 × 106/ml) compared to the smoke-free (23.85 ± 22.14 × 106/ml). For exposure to STDs, no significant differences were recorded among study groups concerning semen quality. Conclusion Sperm quality in Ghanaian men is associated with lifestyle habits. Smoking and sitting for long hours influenced sperm motility and count, respectively. Knowledge of the factors that influence sperm quality in this geographical region can contribute to informed decisions on effective management of infertility in Ghanaian men.
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32
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Amiri M, Ramezani Tehrani F. Potential Adverse Effects of Female and Male Obesity on Fertility: A Narrative Review. Int J Endocrinol Metab 2020; 18:e101776. [PMID: 33257906 PMCID: PMC7695350 DOI: 10.5812/ijem.101776] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 12/16/2022] Open
Abstract
CONTEXT Despite several studies documenting that obesity affects female and male fertility and leads to multiple adverse reproductive outcomes, the mechanisms involved are not elucidated. We aimed to summarize the potential adverse effects of female and male obesity, as well as the impact of weight loss on their fertility status. EVIDENCE ACQUISITION This review summarizes papers investigating the potential adverse effects of female and male obesity and the impact of weight-loss interventions on fertility among reproductive age populations. PubMed, Scopus, Web of Science, and Google Scholar databases were searched for retrieving studies published up to November 2019 on obesity/overweight among reproductive age populations. RESULTS The review of 68 studies revealed that female and male obesity/overweight increases the risk of sub-fecundity and infertility. The destructive effects of female obesity on reproduction are attributed to a variety of ovarian and extra-ovarian factors. In women with overweight or obesity, the time taken to conceive is longer, and they have a decreased fertility rate, increased requirement for gonadotropins, and higher miscarriage rate when compared to those with normal weight. Male obesity may lead to subfertility, mainly because of the disruption of the hypothalamus-pituitary-gonadal (HPG) axis, increased testicular temperature, impairment of the physical and molecular structure of sperm, decreased sperm quality, and erectile dysfunction due to peripheral vascular disease. Most studies recommend lifestyle interventions as first-line therapy in the general population of women and men with obesity and infertility. CONCLUSIONS This study shows the negative effects of female and male overweight and obesity on fertility. Therefore, educational interventions on the adverse effects of obesity and the benefits of weight reduction, such as increasing pregnancy rate, should be considered for couples seeking fertility.
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Affiliation(s)
- Mina Amiri
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fahimeh Ramezani Tehrani
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Corresponding Author: Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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33
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Muratori M, Pellegrino G, Mangone G, Azzari C, Lotti F, Tarozzi N, Boni L, Borini A, Maggi M, Baldi E. DNA Fragmentation in Viable and Non-Viable Spermatozoa Discriminates Fertile and Subfertile Subjects with Similar Accuracy. J Clin Med 2020; 9:jcm9051341. [PMID: 32375389 PMCID: PMC7290809 DOI: 10.3390/jcm9051341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/26/2020] [Accepted: 04/30/2020] [Indexed: 12/22/2022] Open
Abstract
Sperm DNA fragmentation (sDF) negatively affects reproduction and is traditionally detected in total sperm population including viable and non-viable spermatozoa. Here, we aimed at exploring the ability of DNA fragmentation to discriminate fertile and subfertile men when detected in viable (viable sDF), non-viable (non-viable sDF), and total spermatozoa (total sDF). We revealed sDF in 91 male partners of infertile couples and 71 fertile men (max 1 year from natural conception) with LiveTUNEL coupled to flow cytometry, able to reveal simultaneously DNA fragmentation and cell viability. We found that the three sDF parameters discriminated fertile and subfertile men with similar accuracy and independently from age and basal semen parameters: AUCs (area under the curves) (95% CI) were: 0.696 (0.615–0.776), p < 0.001 for total sDF; 0.718 (0.640–0.797), p < 0.001 for viable sDF; 0.760 (0.685–0.835), p < 0.001 for non-viable sDF. We also found that total and non-viable but not viable sDF significantly correlated to age and semen quality. In conclusion, the three sDF parameters similarly discriminated fertile and subfertile men. Viable spermatozoa with DNA fragmentation are likely cells able to fertilize the oocyte but failing to properly support subsequent embryo development. Non-viable sDF could be a sign of a subtler damage extended beyond the non-viable cells.
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Affiliation(s)
- Monica Muratori
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, Center of Excellence DeNothe, University of Florence, 50139 Florence, Italy; (G.P.); (F.L.); (M.M.)
- Correspondence: ; Tel.: +39-055-275-8235
| | - Giulia Pellegrino
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, Center of Excellence DeNothe, University of Florence, 50139 Florence, Italy; (G.P.); (F.L.); (M.M.)
| | - Giusi Mangone
- Pediatric Section, Department of Health Sciences, University of Florence and Anna Meyer Children’s University Hospital, 50139 Florence, Italy; (G.M.); (C.A.)
| | - Chiara Azzari
- Pediatric Section, Department of Health Sciences, University of Florence and Anna Meyer Children’s University Hospital, 50139 Florence, Italy; (G.M.); (C.A.)
| | - Francesco Lotti
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, Center of Excellence DeNothe, University of Florence, 50139 Florence, Italy; (G.P.); (F.L.); (M.M.)
| | - Nicoletta Tarozzi
- 9.baby, Family and Fertility Center, 40125 Bologna, Italy; (N.T.); (A.B.)
| | - Luca Boni
- Clinical Trials Center, AOU Careggi, 50139 Florence, Italy;
| | - Andrea Borini
- 9.baby, Family and Fertility Center, 40125 Bologna, Italy; (N.T.); (A.B.)
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, Center of Excellence DeNothe, University of Florence, 50139 Florence, Italy; (G.P.); (F.L.); (M.M.)
| | - Elisabetta Baldi
- Department of Experimental and Clinical Medicine, Center of Excellence DeNothe, University of Florence, 50139 Florence, Italy;
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Sharara F, Seaman E, Morris R, Schinfeld J, Nichols J, Sobel M, Lee A, Somkuti S, Hirshberg S, Budinetz T, Barmat L, Palermo G, Rosenwaks Z, Bar-Chama N, Bodie J, Nichols J, Payne J, McCoy T, Tarnawa E, Whitman-Elia G, Weissmann L, Doukakis M, Hurwitz J, Leondires M, Murdock C, Ressler I, Richlin S, Williams S, Wosnitzer M, Butcher M, Kashanian J, Ahlering P, Aubuchon M, Ostermeier GC, Travis AJ. Multicentric, prospective observational data show sperm capacitation predicts male fertility, and cohort comparison reveals a high prevalence of impaired capacitation in men questioning their fertility. Reprod Biomed Online 2020; 41:69-79. [PMID: 32505543 DOI: 10.1016/j.rbmo.2020.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 10/24/2022]
Abstract
RESEARCH QUESTIONS Can a previously defined relationship between sperm capacitation and the probability of a man generating pregnancy within three cycles, prospectively predict male fertility in diverse clinical settings? A second study asked, what is the prevalence of impaired sperm fertilizing ability in men questioning their fertility (MQF), and does this relate to traditional semen analysis metrics? DESIGN In the multicentric, prospective observational study, data (n = 128; six clinics) were analysed to test a published relationship between the percentage of fertilization-competent, capacitated spermatozoa (Cap-Score) and probability of generating pregnancy (PGP) within three cycles of intrauterine insemination. Logistic regression of total pregnancy outcomes (n = 252) assessed fit. In the cohort comparison, Cap-Scores of MQF (n = 2155; 22 clinics) were compared with those of 76 fertile men. RESULTS New outcomes (n = 128) were rank-ordered by Cap-Score and divided into quintiles (25-26 per group); chi-squared testing revealed no difference between predicted and observed pregnancies (P = 0.809). Total outcomes (n = 252; 128 new + 124 previous) were pooled and the model recalculated, yielding an improved fit (P < 0.001). Applying the Akaike information criterion found that the optimal model used Cap-Score alone. Cap-Scores were performed on 2155 men (with semen analysis data available for 1948). To compare fertilizing ability, men were binned by PGP (≤19%, 20-29%, 30-39%, 40-49%, 50-59%, ≥60%). Distributions of PGP and the corresponding Cap-Scores were significantly lower in MQF versus fertile men (P < 0.001). Notably, 64% of MQF with normal volume, concentration and motility (757/1183) had PGP of 39% or less (Cap-Scores ≤31), versus 25% of fertile men. CONCLUSIONS Sperm capacitation prospectively predicted male fertility. Impaired capacitation affects many MQF with normal semen analysis results, informing diagnosis versus idiopathic infertility.
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Affiliation(s)
- Fady Sharara
- Virginia Center for Reproductive Medicine, Reston VA, USA
| | | | | | | | | | | | - Annette Lee
- Abington Reproductive Medicine, Abington PA, USA
| | | | | | | | - Larry Barmat
- Abington Reproductive Medicine, Abington PA, USA
| | - Gianpiero Palermo
- Weill Cornell Medicine, Ronald O. Perelman & Claudia Cohen Center for Reproductive Medicine, New York NY, USA
| | - Zev Rosenwaks
- Weill Cornell Medicine, Ronald O. Perelman & Claudia Cohen Center for Reproductive Medicine, New York NY, USA
| | | | - Joshua Bodie
- Department of Urology, University of Minnesota, Minneapolis MN, USA
| | - John Nichols
- Piedmont Reproductive Endocrinology Group, Greenville SC, USA
| | - John Payne
- Piedmont Reproductive Endocrinology Group, Greenville SC, USA
| | - Travis McCoy
- Piedmont Reproductive Endocrinology Group, Greenville SC, USA
| | - Edward Tarnawa
- Piedmont Reproductive Endocrinology Group, Greenville SC, USA
| | | | | | | | | | | | | | | | | | | | | | - Michael Butcher
- Park Nicollet Sexual Medicine & Male Infertility Clinic, St Louis Park MN, USA
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Liu Z, Lin L, Yao X, Xing J. Association between polymorphisms in the XRCC1 gene and male infertility risk: A meta-analysis. Medicine (Baltimore) 2020; 99:e20008. [PMID: 32358378 PMCID: PMC7440050 DOI: 10.1097/md.0000000000020008] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND X-ray repair cross-complementing group 1 (XRCC1) single nucleotide polymorphisms (SNPs) might correlate with male infertility susceptibility. This association has been described; however, the findings remain inconsistent. Consequently, this meta-analysis was conducted to characterize the relationship between XRCC1 SNPs and male infertility susceptibility. METHODS/MAIN RESULTS Studies were systematically searched in databases to evaluate the association between SNPs of XRCC1 and infertility in males. The effect measures chosen were the 95% confidence intervals (95% CIs) and odds ratios (ORs). A total of 7 studies, including 6 case-controlled studies on XRCC1 Arg399Gln and 3 case-controlled studies on XRCC1 Arg194Trp, were included. Ultimately, the results of this analysis revealed that XRCC1 Arg399Gln SNPs were significantly associated with infertility in males in homozygote comparisons (GG vs GA+AA: OR = 0.614, 95% CI: 0.40-0.937, P = .024). This meta-analysis did not demonstrate a relationship between XRCC1 Arg194Trp and male infertility risk. CONCLUSIONS Our study indicated that XRCC1 Arg399Gln polymorphism was associated with a significantly decreased male infertility risk, but not XRCC1 Arg194Trp.
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Affiliation(s)
- Zhengsheng Liu
- Department of Urology Surgery
- Center of Diagnosis and Treatment of Urinary System Diseases
- Key Laboratory of Urinary Tract Tumors and Calculi of Xiamen City
| | - Luqi Lin
- Department of Cardiology, The First Affiliated Hospital of Xiamen University
| | - Xiongbo Yao
- Department of Clinical Medicine, Fujian Medical University, Xiamen, Fujian, P.R. China
| | - Jinchun Xing
- Department of Urology Surgery
- Center of Diagnosis and Treatment of Urinary System Diseases
- Key Laboratory of Urinary Tract Tumors and Calculi of Xiamen City
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Leisegang K, Dutta S. Do lifestyle practices impede male fertility? Andrologia 2020; 53:e13595. [PMID: 32330362 DOI: 10.1111/and.13595] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/21/2020] [Accepted: 03/24/2020] [Indexed: 12/15/2022] Open
Abstract
Alongside an increasing prevalence of couple and male infertility, evidence suggests there is a global declining trend in male fertility parameters over the past few decades. This may, at least in part, be explained through detrimental lifestyle practices and exposures. These include alcohol and tobacco consumption, use of recreational drugs (e.g., cannabis, opioids and anabolic steroids), poor nutritional habits, obesity and metabolic syndrome, genital heat stress (e.g., radiation exposure through cell phones and laptops, prolonged periods of sitting, tight-fitting underwear and recurrent hot baths or saunas), exposure to endocrine-disrupting chemicals (e.g., pesticide residue, bisphenol A, phthalates and dioxins) and psychological stress. This review discusses these lifestyle practices and the current evidence associated with male infertility. Furthermore, known mechanisms of action are also discussed for each of these. Common mechanisms associated with a reduction in spermatogenesis and/or steroidogenesis due to unfavourable lifestyle practices include inflammation and oxidative stress locally or systemically. It is recommended that relevant lifestyle practices are investigated in clinical history of male infertility cases, particularly in unexplained or idiopathic male infertility. Appropriate modification of detrimental lifestyle practices is further suggested and recommended in the management of male infertility.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Cape Town, South Africa
| | - Sulagna Dutta
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor, Malaysia
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Yang X, Zhao Y, Sun Q, Yang Y, Gao Y, Ge W, Liu J, Xu X, Zhang J. Adenosine accumulation causes metabolic disorders in testes and associates with lower testosterone level in obese mice. Mol Reprod Dev 2020; 87:241-250. [PMID: 32026564 DOI: 10.1002/mrd.23321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 01/05/2020] [Indexed: 12/27/2022]
Abstract
Overweight and obese men face numerous health problems, including type 2 diabetes, subfertility, and even infertility. However, few studies have focused on the effects of nutritional status and obesity-related regulatory signals on fertility deficiency. Our previous observations have shown that the elevation of plasma 5'-adenosine monophosphate (5'-AMP) and the accumulation of adenosine in liver and muscle of obese diabetic db/db mice are related to insulin resistance. Here, we found that adenosine accumulation in testis is a common marker of both genetic obesity and high-fat-diet induced obese mice. An messenger RNA sequencing analysis indicated that 78 upregulated genes and 155 downregulated genes in the testis of 5'-AMP-treated mice overlapped with the same genes in the testis of ob/ob mice, and these genes belonged to the clusters of steroid metabolic process and regulation of hormone levels, respectively. Serum testosterone was reduced in ob/ob and 5'-AMP-treated mice. Metabolomic analysis based on 1 H nuclear magnetic resonance showed that the testicular metabolic profiles of ob/ob mice were similar to those of 5'-AMP treated mice. Exogenous 5'-AMP inhibited the phosphorylation of AKT and mammalian target of rapamycin signal transduction and reduced the proliferating cell nuclear antigen expressions in testes. Our results suggest that the accumulation of adenosine causes metabolic disorders in testes and associates lower testosterone level in obese mice.
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Affiliation(s)
- Xiao Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Qi Sun
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yan Gao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Junhao Liu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
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Jensen TK, Priskorn L, Holmboe SA, Nassan FL, Andersson AM, Dalgård C, Petersen JH, Chavarro JE, Jørgensen N. Associations of Fish Oil Supplement Use With Testicular Function in Young Men. JAMA Netw Open 2020; 3:e1919462. [PMID: 31951274 PMCID: PMC6991322 DOI: 10.1001/jamanetworkopen.2019.19462] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
IMPORTANCE Many young men have poor semen quality, and the causes are often unknown. Supplement intake of ω-3 polyunsaturated fatty acid has been found to improve semen quality among men with infertility, but the association with semen quality among healthy men is unknown. OBJECTIVE To determine if intake of ω-3 fatty acid supplements is associated with testicular function as measured by semen quality and reproductive hormone levels among healthy men. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study included young Danish men from the general population recruited between January 1, 2012, and December 31, 2017, at compulsory examinations to determine their fitness for military service. Young unselected men were approached after the examination and invited to participate in a study of reproductive function, regardless of their fitness for military service. Data analysis was conducted from September 1, 2018, to June 30, 2019. EXPOSURES Intake of supplements, including fish oil, during the past 3 months. MAIN OUTCOMES AND MEASURES Semen quality, measured as volume, concentration, total sperm count, percentage of morphologically normal spermatozoa, and motility, and serum reproductive hormone levels, measured as follicle-stimulating hormone, luteinizing hormone, testosterone, free testosterone, and inhibin B levels. RESULTS Among 1679 young Danish men (median [interquartile range] age, 18.9 [18.7-19.4] years) recruited to participate, 98 men (5.8%) reported use of fish oil supplements during the past 3 months, of whom 53 (54.1%) reported intake on 60 or more days. After adjustment and compared with men with no supplement intake, men with fish oil supplement intake on fewer than 60 days had semen volume that was 0.38 (95% CI, -0.03 to 0.80) mL higher, and men with fish oil supplement intake on 60 or more days had semen volume that was 0.64 (95% CI, 0.15 to 1.12) mL higher (P for trend < .001). Similarly, testicular size in men with supplement intake on fewer than 60 days was 0.8 (95% CI, -0.2 to 1.9) mL larger and in men with fish oil supplement intake on 60 or more days was 1.5 (95% CI, 0.2 to 2.8) mL larger compared with men with no supplement intake (P for trend = .007). After adjustment, men with fish oil supplement intake had a 20% (95% CI, 9%-31%) lower follicle-stimulating hormone level and 16% (95% CI, 8%-24%) lower luteinizing hormone level compared with men with no supplement intake. There were no associations of intake of other supplements with measures of testicular function. CONCLUSIONS AND RELEVANCE These findings suggest that intake of fish oil supplements was associated with better testicular function, which is less likely to be due to confounding by indication, as no associations of intake of other supplements with testicular function were found. This cross-sectional study did not examine the actual content of ω-3 fatty acids in the supplements; therefore, these findings need confirmation in well-designed randomized clinical trials among unselected men.
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Affiliation(s)
- Tina Kold Jensen
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lærke Priskorn
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Stine A. Holmboe
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Feiby L. Nassan
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christine Dalgård
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | - Jørgen Holm Petersen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jorge E. Chavarro
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Niels Jørgensen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Danielewicz A, Morze J, Przybyłowicz M, Przybyłowicz KE. Association of the Dietary Approaches to Stop Hypertension, Physical Activity, and Their Combination with Semen Quality: A Cross-Sectional Study. Nutrients 2019; 12:nu12010039. [PMID: 31877862 PMCID: PMC7019803 DOI: 10.3390/nu12010039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022] Open
Abstract
The influence of individual lifestyle factors is widely described in studies on semen quality. However, their synergistic effect is often neglected. The aim of the study was to examine the association between semen quality and dietary approaches to stop hypertension (DASH) diet, physical activity (PA), and the two separately and in combination. A cross-sectional study was carried out among 207 men aged 20–55. Dietary data were collected by a food frequency questionnaire (FFQ) and analysed according to the DASH scoring index. Physical activity was evaluated by the International Physical Activity Questionnaire. Semen parameters were assessed via the computer-aided semen analysis (CASA). Adherence to the DASH diet was associated with higher sperm count (ΔT3-T1 = 82.1 mln/ej) and concentration (ΔT3-T1 = 24.6 mln/mL). Higher PA was related to higher sperm count (ΔT3-T1 = 69.4 mln/ej), total (ΔT3-T1 = 11.9%), and progressive motility (ΔT3-T1 = 8.5%) and morphology (ΔT3-T1 = 2.8%) in the crude model and remained significant after adjustment. The combination of the DASH diet and PA, was significantly positively associated with sperm count (ΔT3-T1 = 98.1 mln/ej), sperm concentration (ΔT3-T1 = 17.5 mln/mL), total (ΔT3-T1 = 11.8%), and progressive motility (ΔT3-T1 = 10.0%) and morphology (ΔT3-T1 = 3.3%) in both models. Adherence to the DASH diet was related to higher sperm count and concentration, whereas after its combination with physical activity it was also positively correlated with sperm motility and morphology.
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Affiliation(s)
- Anna Danielewicz
- Department of Human Nutrition, Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45F, 10-718 Olsztyn, Poland; (J.M.); (K.E.P.)
- Correspondence: ; Tel.: +48-89-524-55-12
| | - Jakub Morze
- Department of Human Nutrition, Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45F, 10-718 Olsztyn, Poland; (J.M.); (K.E.P.)
- Department of Cardiology and Cardiac Surgery, School of Medicine, University of Warmia and Mazury in Olsztyn, al. Warszawska 30, 10-082 Olsztyn, Poland
| | - Mariusz Przybyłowicz
- Department of Oncological Gynecology, Provincial Specialist Hospital in Olsztyn, ul. Żołnierska 18, 10-561 Olsztyn, Poland;
- Center of Gynecology, Endocrinology and Reproductive Medicine Artemida in Olsztyn; ul. Jagiellońska 78, 10-229 Olsztyn, Poland
| | - Katarzyna Eufemia Przybyłowicz
- Department of Human Nutrition, Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45F, 10-718 Olsztyn, Poland; (J.M.); (K.E.P.)
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Franzago M, La Rovere M, Guanciali Franchi P, Vitacolonna E, Stuppia L. Epigenetics and human reproduction: the primary prevention of the noncommunicable diseases. Epigenomics 2019; 11:1441-1460. [PMID: 31596147 DOI: 10.2217/epi-2019-0163] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Epigenetic regulation of gene expression plays a key role in affecting human health and diseases with particular regard to human reproduction. The major concern in this field is represented by the epigenetic modifications in the embryo and the increased risk of long-life disorders induced by the use of assisted reproduction techniques, able to affect the epigenetic assessment in the first steps of embryo development. In this review, we analyze the correlation between epigenetic modifications and human reproduction, suggesting that the reversibility of the epigenetic processes could represent a novel resource for the treatment of the couple's infertility and that parental lifestyle in periconceptional period could be considered as an important issue of primary prevention.
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Affiliation(s)
- Marica Franzago
- Department of Medicine & Aging, School of Medicine & Health Sciences, 'G. d'Annunzio' University, Chieti-Pescara, Chieti, Italy.,Center for Aging Studies & Translational Medicine (CESI-MET), 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Marina La Rovere
- Department of Psychological, Health & Territorial Sciences, School of Medicine & Health Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Paolo Guanciali Franchi
- Department of Medical, Oral & Biotechnological Sciences, School of Medicine & Health Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Ester Vitacolonna
- Department of Medicine & Aging, School of Medicine & Health Sciences, 'G. d'Annunzio' University, Chieti-Pescara, Chieti, Italy
| | - Liborio Stuppia
- Center for Aging Studies & Translational Medicine (CESI-MET), 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy.,Department of Psychological, Health & Territorial Sciences, School of Medicine & Health Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
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41
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Thurston L, Abbara A, Dhillo WS. Investigation and management of subfertility. J Clin Pathol 2019; 72:579-587. [PMID: 31296604 DOI: 10.1136/jclinpath-2018-205579] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 01/17/2023]
Abstract
Subfertility affects one in seven couples and is defined as the inability to conceive after 1 year of regular unprotected intercourse. This article describes the initial clinical evaluation and investigation to guide diagnosis and management. The primary assessment of subfertility is to establish the presence of ovulation, normal uterine cavity and patent fallopian tubes in women, and normal semen parameters in men. Ovulation is supported by a history of regular menstrual cycles (21-35 days) and confirmed by a serum progesterone >30 nmol/L during the luteal phase of the menstrual cycle. Common causes of anovulation include polycystic ovary syndrome (PCOS), hypothalamic amenorrhoea (HA) and premature ovarian insufficiency (POI). Tubal patency is assessed by hysterosalpingography, hystero-contrast sonography, or more invasively by laparoscopy and dye test. The presence of clinical or biochemical hyperandrogenism, serum gonadotrophins (luteinising hormone/follicle stimulating hormone) / oestradiol, pelvic ultrasound to assess ovarian morphology / antral follicle count, can help establish the cause of anovulation. Ovulation can be restored in women with PCOS using letrozole (an aromatase inhibitor), clomifene citrate (an oestrogen antagonist) or exogenous gonadotrophin administration. If available, pulsatile gonadotrophin releasing hormone therapy is the preferred option for restoring ovulation in HA. Spermatogenesis can be induced in men with hypogonadotrophic hypogonadism with exogenous gonadotrophins. Unexplained subfertility can be treated with in vitro fertilisation after 2 years of trying to conceive. Involuntary childlessness is associated with significant psychological morbidity; hence, expert assessment and prompt treatment are necessary to support such couples.
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Affiliation(s)
- Layla Thurston
- Section of Investigative Medicine, Division of Diabetes and Endocrinology, Imperial College London, London, UK
| | - Ali Abbara
- Section of Investigative Medicine, Division of Diabetes and Endocrinology, Imperial College London, London, UK
| | - Waljit S Dhillo
- Section of Investigative Medicine, Division of Diabetes and Endocrinology, Imperial College London, London, UK
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Empiric Medical and Nutritional Therapy for Idiopathic Male Infertility: How Good Is the Evidence for What Works and Does Not? Eur Urol 2019; 75:626-627. [PMID: 30711332 DOI: 10.1016/j.eururo.2019.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 01/11/2019] [Indexed: 11/21/2022]
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Stanford KI, Rasmussen M, Baer LA, Lehnig AC, Rowland LA, White JD, So K, De Sousa-Coelho AL, Hirshman MF, Patti ME, Rando OJ, Goodyear LJ. Paternal Exercise Improves Glucose Metabolism in Adult Offspring. Diabetes 2018; 67:2530-2540. [PMID: 30344184 PMCID: PMC6245224 DOI: 10.2337/db18-0667] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/24/2018] [Indexed: 12/12/2022]
Abstract
Poor paternal diet has emerged as a risk factor for metabolic disease in offspring, and alterations in sperm may be a major mechanism mediating these detrimental effects of diet. Although exercise in the general population is known to improve health, the effects of paternal exercise on sperm and offspring metabolic health are largely unknown. Here, we studied 7-week-old C57BL/6 male mice fed a chow or high-fat diet and housed either in static cages (sedentary) or cages with attached running wheels (exercise trained). After 3 weeks, one cohort of males was sacrificed and cauda sperm obtained, while the other cohort was bred with chow-fed sedentary C57BL/6 females. Offspring were chow fed, sedentary, and studied during the first year of life. We found that high-fat feeding of sires impairs glucose tolerance and increases the percentage of fat mass in both male and female offspring at 52 weeks of age. Strikingly, paternal exercise suppresses the effects of paternal high-fat diet on offspring, reversing the observed impairment in glucose tolerance, percentage of fat mass, and glucose uptake in skeletal muscles of the offspring. These changes in offspring phenotype are accompanied by changes in sperm physiology, as, for example, high-fat feeding results in decreased sperm motility, an effect normalized in males subject to exercise training. Deep sequencing of sperm reveals pronounced effects of exercise training on multiple classes of small RNAs, as multiple changes to the sperm RNA payload observed in animals consuming a high-fat diet are suppressed by exercise training. Thus, voluntary exercise training of male mice results in pronounced improvements in the metabolic health of adult male and female offspring. We provide the first in-depth analysis of small RNAs in sperm from exercise-trained males, revealing a marked change in the levels of multiple small RNAs with the potential to alter phenotypes in the next generation.
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Affiliation(s)
- Kristin I Stanford
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH
| | - Morten Rasmussen
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA
| | - Lisa A Baer
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH
| | - Adam C Lehnig
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH
| | - Leslie A Rowland
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Joseph D White
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH
| | - Kawai So
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA
| | | | - Michael F Hirshman
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA
| | - Mary-Elizabeth Patti
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Oliver J Rando
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA
| | - Laurie J Goodyear
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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44
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Schinfeld J, Sharara F, Morris R, Palermo GD, Rosenwaks Z, Seaman E, Hirshberg S, Cook J, Cardona C, Ostermeier GC, Travis AJ. Cap-Score™ prospectively predicts probability of pregnancy. Mol Reprod Dev 2018; 85:654-664. [PMID: 30187594 PMCID: PMC6221170 DOI: 10.1002/mrd.23057] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/04/2018] [Indexed: 11/08/2022]
Abstract
Semen analysis (SA) poorly predicts male fertility, because it does not assess sperm fertilizing ability. The percentage of capacitated sperm determined by GM1 localization (“Cap‐Score™”), differs between cohorts of fertile and potentially infertile men, and retrospectively, between men conceiving or failing to conceive by intrauterine insemination (IUI). Here, we prospectively tested whether Cap‐Score can predict male fertility with the outcome being clinical pregnancy within ≤3 IUI cycles. Cap‐Score and SA were performed (n = 208) with outcomes initially available for 91 men. Men were predicted to have either low (n = 47) or high (n = 44) chance of generating pregnancy using previously‐defined Cap‐Score reference ranges. Absolute and cumulative pregnancy rates were reduced in men predicted to have low pregnancy rates versus high ([absolute: 10.6% vs. 29.5%; p = 0.04]; [cumulative: 4.3% vs. 18.2%, 9.9% vs. 29.1%, and 14.0% vs. 32.8% for cycles 1–3; n = 91, 64, and 41; p = 0.02]). Only Cap‐Score, not male/female age or SA results, differed significantly between outcome groups. Logistic regression evaluated Cap‐Score and SA results relative to the probability of generating pregnancy (PGP) for men who were successful in, or completed, three IUI cycles (n = 57). Cap‐Score was significantly related to PGP (p = 0.01). The model fit was then tested with 67 additional patients (n = 124; five clinics); the equation changed minimally, but fit improved (p < 0.001; margin of error: 4%). The Akaike Information Criterion found the best model used Cap‐Score as the only predictor. These data show that Cap‐Score provides a practical, predictive assessment of male fertility, with applications in assisted reproduction and treatment of male infertility.
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Affiliation(s)
- Jay Schinfeld
- Abington Reproductive Medicine, Abington, Pennsylvania
| | - Fady Sharara
- Virginia Center for Reproductive Medicine, Reston, Virginia
| | | | - Gianpiero D Palermo
- The Ronald O. Perelman & Claudia Cohen Center for Reproductive Medicine & Infertility, Weill Cornell Medical College, New York
| | - Zev Rosenwaks
- The Ronald O. Perelman & Claudia Cohen Center for Reproductive Medicine & Infertility, Weill Cornell Medical College, New York
| | | | | | - John Cook
- Singular Value Consulting, Houston, Texas
| | | | | | - Alexander J Travis
- Androvia LifeSciences, Mountainside, New Jersey.,Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York
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45
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Danielewicz A, Przybyłowicz KE, Przybyłowicz M. Dietary Patterns and Poor Semen Quality Risk in Men: A Cross-Sectional Study. Nutrients 2018; 10:nu10091162. [PMID: 30149588 PMCID: PMC6165100 DOI: 10.3390/nu10091162] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/17/2018] [Accepted: 08/23/2018] [Indexed: 11/16/2022] Open
Abstract
The etiology of diminished sperm quality in about 30% of male infertility cases generally remains unexplained. Some studies have suggested that specific nutritional factors can affect semen quality. The aim of this study was to evaluate an association between dietary patterns (DPs) and the risk of abnormal semen quality parameters in men. This cross-sectional study was carried out in 114 men aged 20⁻55 years from Poland. Semen parameters were assessed via computer-aided semen. Diet was assessed by a food frequency questionnaire (FFQ). DPs were derived using Principal Component Analysis (PCA). Two DPs were derived: Pro-healthy and Western. After adjusting for potential confounders, the risk of abnormal progressive motility was significantly higher in the middle (OR: 2.89, 95% CI: 1.03⁻8.09) and upper (OR: 7.78, 95% CI: 1.52⁻15.06) tertiles of the Western DP. A trend for increased risk of the abnormal total count, progressive motility, and morphology (P-trend < 0.050) was found in Western DP. To conclude, the Western DP may increase the risk of abnormal semen parameters, whereas no association was found in the case of Pro-healthy DP. These findings stand in contrast to an increasing number of research findings indicating a positive relation between intake of healthy foods or diet and semen quality parameters. The results highlight the need to study whether modifications in diet and lifestyle factors improve semen quality.
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Affiliation(s)
- Anna Danielewicz
- Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45F, 10-718 Olsztyn, Poland.
| | | | - Mariusz Przybyłowicz
- Center of Gynecology, Endocrinology and Reproductive Medicine Artemida in Olsztyn, Jagiellońska 78, 10-229 Olsztyn, Poland.
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