1
|
Jahangir M, Nazari M, Babakhanzadeh E, Manshadi SD. Where do obesity and male infertility collide? BMC Med Genomics 2024; 17:128. [PMID: 38730451 PMCID: PMC11088066 DOI: 10.1186/s12920-024-01897-5] [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: 12/04/2023] [Accepted: 04/30/2024] [Indexed: 05/12/2024] Open
Abstract
The parallel rise in obesity and male infertility in modern societies necessitates the identification of susceptibility genes underlying these interconnected health issues. In our study, we conducted a comprehensive search in the OMIM database to identify genes commonly associated with male infertility and obesity. Subsequently, we performed an insilico analysis using the REVEL algorithm to detect pathogenic single nucleotide polymorphisms (SNPs) in the coding region of these candidate genes. To validate our findings in vivo, we conducted a comprehensive analysis of SNPs and gene expression of candidate genes in 200 obese infertile subjects and 240 obese fertile individuals using ARMS-PCR. Additionally, we analyzed 20 fertile and 22 infertile obese individuals using Realtime-qPCR. By removing duplicated queries, we obtained 197 obesity-related genes and 102 male infertility-related genes from the OMIM database. Interestingly, the APOB gene was found in common between the two datasets. REVEL identified the rs13306194 variant as potentially pathogenic with a calculated score of 0.524. The study identified a significant association between the AA (P value = 0.001) genotype and A allele (P value = 0.003) of the APOB rs13306194 variant and infertility in obese men. APOB expression levels were significantly lower in obese infertile men compared to obese fertile controls (p < 0.01). Moreover, the AA genotype of rs13306194 APOB was associated with a significant decrease in APOB gene expression in obese infertile men (p = 0.05). There is a significant association between the Waist-to-Hip Ratio (WHR) and LH with infertility in the obese infertile group. These results are likely to contribute to a better understanding of the causes of male infertility and its association with obesity.
Collapse
Affiliation(s)
- Melika Jahangir
- Department of Pharmacy, Tehran University of Medical Sciences, P.O. Box: 64155-65117, Tehran, Iran
| | - Majid Nazari
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Emad Babakhanzadeh
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | |
Collapse
|
2
|
Khademi F, Pournaghi P, Vafaei A, Hassanpour K, Bakhiari M, Mansouri K, Soleymani B. Expression Patterns of Leptin, Leptin Receptor, Kiss1, and HOTAIR Genes in Blood and Semen of Infertile Males with Oligospermia. Rep Biochem Mol Biol 2024; 13:79-86. [PMID: 39582822 PMCID: PMC11580129 DOI: 10.61186/rbmb.13.1.79] [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: 12/10/2023] [Accepted: 03/03/2024] [Indexed: 11/26/2024]
Abstract
Background Infertility affects about 15% of couples during reproductive age and male factor infertility accounts for half of these cases. This study aimed to evaluate the expression of leptin, KISS1, leptin receptor, and HOTAIR genes in blood and semen samples of individuals diagnosed with oligospermia in comparison to healthy controls. Methods In the current investigation, we studied 36 semen and 30 blood samples from fertile oligospermic men as well as the same number of healthy controls. RNA was extracted and cDNA was synthesized. Real-time polymerase chain reaction (PCR) was conducted to assess the gene expression levels. Statistical analysis was performed using Graph Pad Prism software. The results were reported as mean±SEM and any P< 0.05 were considered statistically significant. Results A significant increase in the expression of the leptin gene in infertile males, particularly in semen samples (P< 0.001) was found when compared to the healthy controls. On the other hand, significant decrease in the expression of the KISS1 (P< 0.0001) and HOTAIR (P< 0.001) genes, particularly in semen samples were found when compared to the controls. As it was shown, the expression of leptin receptor had no significant effects on male infertility. Additionally, there may be a potential correlation between the expression of HOTAIR and the leptin and KISS1 genes, with a negative correlation observed between HOTAIR and leptin, and a positive correlation between HOTAIR and KISS1 in both blood and semen samples. However, further investigations are necessary to establish the statistical significance of these correlations. Conclusions According to the results, leptin, KISS1, and HOTAIR genes seem to be affected in oligospermia, however, further studies with higher sample sizes are necessary.
Collapse
Affiliation(s)
- Fatemeh Khademi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- These authors equally contributed to this study as first authors
| | - Parimah Pournaghi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran Iran.
- These authors equally contributed to this study as first authors
| | - Ali Vafaei
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Kamyab Hassanpour
- School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Mitra Bakhiari
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Kamran Mansouri
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Bijan Soleymani
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| |
Collapse
|
3
|
Alfaiate MI, Tavares RS, Ramalho-Santos J. A ripple effect? The impact of obesity on sperm quality and function. Reprod Fertil Dev 2024; 36:RD23215. [PMID: 38589340 DOI: 10.1071/rd23215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/15/2024] [Indexed: 04/10/2024] Open
Abstract
Infertility affects approximately 15% of couples trying to conceive. Male-related causes account for roughly 50% of cases, with obesity emerging as a possible significant factor. Obesity, defined as a body mass index of 30.0 or higher, has become a widespread epidemic associated with numerous health issues, including a decrease of fertility. This review discusses the relationship between obesity and male infertility, particularly focusing on sperm quality and function. An overview of the literature suggests that obesity may influence the male reproductive system via disruptions in hormonal profiles, oxidative stress, and inflammation, leading to changes in sperm parameters. Several studies have discussed if obesity causes a decrease in sperm concentration, motility, and normal morphology, so far without a consensus being reached. However, available evidence suggests an impairment of sperm function in obese men, due to an increase in DNA damage and oxidative stress, impaired mitochondrial function and acrosome reaction in response to progesterone. Finally, the relationship between obesity and assisted reproductive technologies outcomes remains debatable, with conflicting evidence regarding the influence on fertilisation, pregnancy, and live birth rates. Therefore, the actual impact of obesity on human spermatozoa still needs to be clarified, due to the multiple factors potentially in play.
Collapse
Affiliation(s)
- Maria Inês Alfaiate
- University of Coimbra, CNC-UC, Center for Neuroscience and Cell Biology, CIBB, Coimbra, Portugal; and University of Coimbra, Institute for Interdisciplinary Research, Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), Coimbra, Portugal
| | - Renata Santos Tavares
- University of Coimbra, CNC-UC, Center for Neuroscience and Cell Biology, CIBB, Coimbra, Portugal; and Department of Life Sciences, University of Coimbra, Coimbra 3000-456, Portugal
| | - João Ramalho-Santos
- University of Coimbra, CNC-UC, Center for Neuroscience and Cell Biology, CIBB, Coimbra, Portugal; and Department of Life Sciences, University of Coimbra, Coimbra 3000-456, Portugal
| |
Collapse
|
4
|
Mu Y, Luo LB, Wu SJ, Gao Y, Qin XL, Zhao J, Liu Q, Yang J. Bezafibrate alleviates diabetes-induced spermatogenesis dysfunction by inhibiting inflammation and oxidative stress. Heliyon 2024; 10:e28284. [PMID: 38533024 PMCID: PMC10963653 DOI: 10.1016/j.heliyon.2024.e28284] [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: 08/02/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
The metabolic disorders caused by diabetes can lead to various complications, including male spermatogenesis dysfunction. Exploring effective therapeutics that attenuate diabetes mellitus (DM)-induced male subfertility is of great importance. Pharmaceuticals targeting PPARα activation such as bezafibrate have been regarded as an important strategy for patients with diabetes. In this study, we use streptozocin (STZ) injection to establish a type 1 DM mice model and use bezafibrate to treat DM mice and evaluate the effects of bezafibrate on the spermatogenic function of the DM male mice. Bezafibrate treatment exhibited protective effects on DM-induced spermatogenesis deficiency, as reflected by increased testis weight, improved histological morphology of testis, elevated sperm parameters, increased serum testosterone concentration as well as increased mRNA levels of steroidogenesis enzymes. Meanwhile, testicular cell apoptosis, inflammation accumulation and oxidative stress status were also shown to be alleviated by bezafibrate compared with the DM group. In vivo and in vitro studies, PPARα specific inhibitor and PPARα knockout mice were further used to investigate the role of PPARα in the protective effects of bezafibrate on DM-induced spermatogenesis dysfunction. Our results indicated that the protection of bezafibrate on DM-induced spermatogenesis deficiency was abrogated by PPARα inhibition or deletion. Our study suggested that bezafibrate administration could ameliorate DM-induced spermatogenesis dysfunction and may represent a novel practical strategy for male infertility.
Collapse
Affiliation(s)
- Yang Mu
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ling-Bo Luo
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Shu-juan Wu
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yue Gao
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiao-lin Qin
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jing Zhao
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qian Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jing Yang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| |
Collapse
|
5
|
Sang L, Ge Y, Liu F, Wei K, Shen X, Zhang Y, Li Z, Lu W, Gao X, Zhang Y. Association between per- and polyfluoroalkyl substances and sex hormone levels in males based on human studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115998. [PMID: 38262091 DOI: 10.1016/j.ecoenv.2024.115998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Per- and poly-fluoroalkyl substances (PFAS) are ubiquitous chemicals in the environment and our daily lives. Several epidemiological studies have revealed that PFAS exposure is linked to male sex hormone levels; however, the conclusions are inconsistent across studies. Consequently, we performed a meta-analysis to systematically evaluate the association between PFAS exposure and male sex hormones. METHODS The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) standards were followed during the meta-analysis. PubMed, Wed of Science, Embase, Cochrane Library, and Ovid databases were used to identify suitable articles before June 2023. The 95% CI and β values were calculated to assess the association between male sex hormone levels and PFAS exposure. Heterogeneity among the included studies was tested using inconsistency statistics (I2). RESULTS The literature search identified 12 published articles that met our search criteria, involving 7506 participants. Our results revealed that perfluorononanoic acid (PFNA) and perfluorooctanoic acid (PFOA) exposures were negatively correlated with testosterone (β = -0.05; 95% CI: -0.09, -0.02, P = 0.003) and (β = -0.04; 95% CI: -0.08, 0.00, P = 0.049), respectively. CONCLUSION Exposure to PFNA and PFOA is negatively correlated with changes in male testosterone levels. This correlation suggests that we need to pay attention in the future to whether they are potential risk factors for male reproductive health.
Collapse
Affiliation(s)
- Lingli Sang
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Yue Ge
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Fucun Liu
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Kai Wei
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Xingyu Shen
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Yuxin Zhang
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Zheng Li
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Wencen Lu
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Xia Gao
- Department of Otolaryngology Head and Neck Surgery of Xuzhou Cancer Hospital, XuZhou 2210000, China.
| | - Yan Zhang
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang 222000, China.
| |
Collapse
|
6
|
Peel A, Saini A, Deluao JC, McPherson NO. Sperm DNA damage: The possible link between obesity and male infertility, an update of the current literature. Andrology 2023; 11:1635-1652. [PMID: 36789664 DOI: 10.1111/andr.13409] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/13/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023]
Abstract
Obesity prevalence worldwide is increasing significantly. Whilst maternal obesity has clear detrimental impacts on fertility, pregnancy and foetal outcomes, more recently there has been an increasing focus on the role of paternal obesity in human fertility. Recent meta-analyses have indicated that obesity in men negatively affects basic sperm parameters such as sperm count, concentration and motility, increases the incidence of infertility and reduces the chances of conception. Sperm DNA damage, typically characterised by DNA strand breaks and oxidation of DNA nucleotides, is a specialised marker of sperm quality that has been independently associated with recurrent miscarriage, reduced assisted reproduction success and increased mutational loads in subsequent offspring. Whilst, there are still conflicting data in humans as to the association of obesity in men with sperm DNA damage, evidence from rodent models is clear, indicating that male obesity increases sperm DNA damage. Human data are often conflicting because of the large heterogeneity amongst studies, the use of body mass index as the indicator of obesity and the methods used for detection of sperm DNA damage. Furthermore, comorbidities of obesity (i.e., heat stress, adipokines, insulin resistance, changes in lipids, hypogonadism and obstructive sleep apnoea) are also independently associated with increased sperm DNA damage that is not always modified in men with obesity, and as such may provide a causative link to the discrepancies amongst human studies. In this review, we provide an update on the literature regarding the associations between obesity in men and fertility, basic sperm parameters and sperm DNA damage. We further discuss potential reasons for the discrepancies in the literature and outline possible direct and indirect mechanisms of increased sperm DNA damage resulting from obesity. Finally, we summarise intergenerational obesity through the paternal linage and how sperm DNA damage may contribute to the transmission.
Collapse
Affiliation(s)
- Andrew Peel
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Anmol Saini
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Joshua C Deluao
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Nicole O McPherson
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
- Repromed IVF Adelaide, Dulwich, South Australia, Australia
| |
Collapse
|
7
|
Chen YK, Liu TT, Teia FKF, Xie MZ. Exploring the underlying mechanisms of obesity and diabetes and the potential of Traditional Chinese Medicine: an overview of the literature. Front Endocrinol (Lausanne) 2023; 14:1218880. [PMID: 37600709 PMCID: PMC10433171 DOI: 10.3389/fendo.2023.1218880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Obesity and diabetes are closely related metabolic disorders that have become major public health concerns worldwide. Over the past few decades, numerous studies have explored the underlying mechanisms of these disorders and identified various risk factors, including genetics, lifestyle, and dietary habits. Traditional Chinese Medicine (TCM) has been increasingly recognized for its potential to manage obesity and diabetes. Weight loss is difficult to sustain, and several diabetic therapies, such as sulfonylureas, thiazolidinediones, and insulin, might make it harder to lose weight. While lifestyle changes should be the primary approach for people interested in lowering weight, drugs are also worth investigating. Since some of the newer glucose-lowering medications that cause weight loss, such as glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and sodium-glucose cotransporter 2 inhibitors (SGLT2i), are additionally utilized or are under consideration for use as anti-obesity drugs, the frontier between glucose-lowering medication and weight loss drugs appears to be shifting. This review provides an overview of the literature on the underlying mechanisms of obesity and diabetes and the prospect of TCM in their management. We discuss the various TCM interventions, including acupuncture, herbal medicine, and dietary therapy, and their effects on metabolic health. We also highlight the potential of TCM in regulating gut microbiota, reducing inflammation, and improving insulin sensitivity. The findings suggest that TCM may provide a promising approach to preventing and managing obesity and diabetes. However, further well-designed studies are needed to confirm the efficacy and safety of TCM interventions and to elucidate their underlying mechanisms of action.
Collapse
Affiliation(s)
- Yan-kun Chen
- School of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Hunan Engineering Technology Research Center for Medicinal and Functional Food, Hunan University of Chinese Medicine, Changsha, China
- Key Laboratory of TCM Heart and Lung Syndrome Differentiation and Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, China
| | - Ting-ting Liu
- School of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Hunan Engineering Technology Research Center for Medicinal and Functional Food, Hunan University of Chinese Medicine, Changsha, China
- Key Laboratory of TCM Heart and Lung Syndrome Differentiation and Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, China
| | - Farah Khameis Farag Teia
- Department of Agro-technology, Medicinal and Aromatic Plants and Traditional Medicine Research Institute, National Centre for Research, Khartoum, Sudan
| | - Meng-zhou Xie
- School of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Hunan Engineering Technology Research Center for Medicinal and Functional Food, Hunan University of Chinese Medicine, Changsha, China
- Key Laboratory of TCM Heart and Lung Syndrome Differentiation and Medicated Diet and Dietotherapy, Hunan University of Chinese Medicine, Changsha, China
| |
Collapse
|
8
|
Alsulami S, Baig M, Ahmad T, Althagafi N, Hazzazi E, Alsayed R, Alghamdi M, Almohammadi T. Obesity prevalence, physical activity, and dietary practices among adults in Saudi Arabia. Front Public Health 2023; 11:1124051. [PMID: 37056656 PMCID: PMC10086171 DOI: 10.3389/fpubh.2023.1124051] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
Introduction The current study evaluated obesity prevalence, physical activity, and dietary practices among Saudi adults in the Makkah region of the Kingdom of Saudi Arabia (KSA). The current survey was accomplished between November 2021 and March 2022. Method A validated questionnaire, Arab Teens Lifestyle Study (ATLS), was used to evaluate all participants' physical activities, sedentary behaviors, and nutritional habits in addition to demographic data. Result A total of 2,115 people [1,238 (58.5%) women and 877 (41.5%) men] participated in this survey. Being overweight was prevalent in 32.8% of the population (41% of men and 28.9% of women), obesity was prevalent in 23% of the population (males 23.1% and females 24.2%). Obese people consumed more soft drinks, and overweight people did not consume enough vegetables (fresh/cooked). Obese people consumed fast food (e.g., burgers, sausage, pizza, or Arabic shawarma) over three times each week. The mean (SD) number of days of practice walking was 2.51 (2.05) vs. 1.3 (1.87) (p < 0.001) for lean and obese individuals, respectively. In addition, individuals with normal BMI had more days of jogging, moderate and high-intensity exercise, dancing, and strength training than those with obesity. The odds of being obese increased with age (OR: 1.07; p < 0.001), in males (OR: 2.16; p < 0.001), in participants earning <5,000 SR/month (1.3 thousand $) and 10-15 thousand SR/month (1.34-2.66 thousand $) (OR: 2.36; P = 0.01). Obesity was inversely associated with moderate-intensity exercise (OR: 0.802; p = 0.009), and regular walking (OR: 0.685; CI: 0.624-0.752; p < 0.001). Discussion Overweight and obesity were prevalent in 32.8% and 23% of the population, respectively. Sociodemographic factors associated with obesity. Focused intervention strategies are needed to overcome the obesity issue.
Collapse
Affiliation(s)
- Salhah Alsulami
- Department of Internal Medicine, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mukhtiar Baig
- Department of Clinical Biochemistry, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Tauseef Ahmad
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Nouf Althagafi
- Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eman Hazzazi
- Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Razan Alsayed
- Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Majd Alghamdi
- Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thikra Almohammadi
- Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
9
|
Lytvynenko H, Lytvynova O, Lytvynov V, Lytynenko M, Latoguz S. CHANGES IN THE SERUM LEVEL OF LEPTIN AND TRANSFORMING GROWTH FACTOR-Β1 IN PATIENTS WITH ARTERIAL HYPERTENSION ON A BACKGROUND OF ABDOMINAL OBESITY. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2023; 76:1742-1747. [PMID: 37740965 DOI: 10.36740/wlek202308106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
OBJECTIVE The aim: Study of the levels of leptin and the growth modulator TGF-β1 in the blood serum of patients with hypertension, which occurs on the background of AO and without it. PATIENTS AND METHODS Materials and methods: Carbohydrate metabolism was studied by the enzymatic method, the level of insulin in the blood (by the enzyme immunoassay method), the oral glucose tolerance test and the calculation of the NOMA index. RESULTS Results: The data obtained in the work indicate a significant role of leptin in the formation of hypertension itself and the development of obesity, carbohydrate and lipid metabolism disorders. The increased level of transforming growth factor-β1 in the blood of such patients can be used as a fairly informative marker of the unfavorable prognosis of these diseases. CONCLUSION Conclusions: 1. In the control group, there was a significant increase in the initial values of heart rate, average levels of SBP and DBP, the frequency of hy-percholesterolemia and insulin resistance was established. 2. Significant disorders of lipid and carbohydrate metabolism and leptin synthesis were found in patients with hypertension, which occurs against the background of AO. 3. When analyzing the level of leptin depending on gender, a statistically significant increase in the level of blood leptin was found in the group of women with AH with AO compared to women with AH without AO and the control group. 4. A significant increase in the level of transforming growth factor-β1 in blood serum of patients with hypertension was established.
Collapse
Affiliation(s)
| | | | - Vadym Lytvynov
- V. N. KARAZIN KHARKIV NATIONAL UNIVERSITY, KHARKIV, UKRAINE
| | | | | |
Collapse
|
10
|
Al-Nawd EA, Alshowafi FK, Abdullateef AA, Noman MMA, Albadani RH, Al-Mansoub MA. Serum leptin correlates in fertile and idiopathic infertile Yemeni males: a comparative cross-sectional study. Syst Biol Reprod Med 2022; 68:348-356. [DOI: 10.1080/19396368.2022.2113930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Ebraheem A. Al-Nawd
- Division of Clinical Biochemistry, Department of Chemistry, Faculty of Medical Laboratory Sciences, Jibla University for Medical and Health Sciences, Ibb, Yemen
- Department of Medical Laboratory Sciences, The High Institute of Health Sciences, Ibb, Yemen
| | - Fairouz K. Alshowafi
- Department of Biochemistry, Faculty of Medicine and Health Sciences, Sana’a University, Sana’a, Yemen
| | - Ahmed A. Abdullateef
- Department of Biochemistry, Faculty of Medicine and Health Sciences, Sana’a University, Sana’a, Yemen
| | - Mohammad M. Abdulgabbar Noman
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine and Health Sciences, Sana’a University, Sana’a, Yemen
| | - Rashad H. Albadani
- Department of Dermatology and Andrology, Althawra Hospital, Ibb, Yemen
- The Consultant Medical Centre for Dermatology, Andrology and Infertility, Ibb, Yemen
| | - Majed Ahmed Al-Mansoub
- Centre for Drug Research, Universiti Sains Malaysia, Penang, Malaysia
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Ibb University, Ibb, Yemen
| |
Collapse
|
11
|
Muhammed AA, Eid RMHM, Mohammed WS, Abdel-Fadeil MR. An association between adropin hormone and total testosterone in obese men: a case-control study. BMC Endocr Disord 2022; 22:192. [PMID: 35897011 PMCID: PMC9327160 DOI: 10.1186/s12902-022-01102-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Obesity is associated with low testosterone levels that could be caused by many mechanisms. Adropin, a peptide hormone, its levels are decreased in obesity and its receptors are expressed in the hypothalamus, the pituitary gland, and the testis. Adropin association to total testosterone in obese men is not detected yet. This study tries to find out possible associations between serum levels of adropin, adiponectin, total testosterone, and lipid profile in obese men. METHODS Serum levels of adropin, adiponectin, total testosterone, and lipid profile parameters were measured in 43 obese men and 40 age-matched normal-weight men. RESULTS Adropin, adiponectin, and testosterone levels were significantly lower in obese men versus normal-weight men. In all participants, positive correlations between adropin, adiponectin, and total testosterone were detected. Adropin is considered a predictor risk factor for testosterone. CONCLUSIONS This study suggests a possible causal relationship between adropin and total testosterone which needs further investigation. TRIAL REGISTRATION Clincialtrials.gov NCT03724825 , registered October 30th, 2018.
Collapse
Affiliation(s)
- Asmaa A Muhammed
- Departments of Medical Physiology, Faculty of Medicine, Aswan University, Aswan, 81511, Egypt.
| | - Rania M H M Eid
- Departments of Medical Physiology, Faculty of Medicine, Aswan University, Aswan, 81511, Egypt
| | - Wafaa Salah Mohammed
- Department of Clinical Pathology, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Mahmoud R Abdel-Fadeil
- Departments of Medical Physiology, Faculty of Medicine, Assiut University, Assiut, Egypt
| |
Collapse
|
12
|
Kups M, Gill K, Rosiak-Gill A, Harasny P, Machalowski T, Grabowska M, Kurzawa R, Sipak O, Piasecka M. Evaluation of selected semen parameters and biomarkers of male infertility - preliminary study. F1000Res 2022; 11:591. [PMID: 38434001 PMCID: PMC10905134 DOI: 10.12688/f1000research.121622.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/17/2022] [Indexed: 03/05/2024] Open
Abstract
Background: Because the etiopathogenesis of male infertility is multifactorial our study was designed to clarify the relationship between standard semen parameters, testicular volume, levels of reproductive hormones and the fragmentation of sperm nuclear DNA (SDF). Methods: Patients (n = 130) were clustered as subjects: 1) with an abnormal volume (utrasonography) of at least one testis (<12 mL) or with a normal volume of testes and 2) with abnormal levels of at least one of the reproductive hormones (FSH, LH, PRL, TSH, total T - electrochemiluminescence method) or with normal hormonal profiles and 3) with high level of SDF (>30%), moderate (>15-30%) or low (≤15%) (sperm chromatin dispersion test). Results: In subjects with a decreased testicular volume and in subjects with abnormal levels of reproductive hormones, decreased basic semen parameters were found. Participants with abnormal testicular volume had a higher percentage of SDF and a higher level of FSH (Mann-Whitney U test). In turn, men with a high level of SDF had lower testicular volume and conventional sperm parameters than men with a low level of SDF (Kruskal-Wallis test). Conclusions: We showed that spermatogenesis disorders coexisted with decreased testicular volume and increased FSH levels. The disorders of spermatogenesis were manifested by reduced basic sperm characteristics and a high level of sperm nuclear DNA damage.
Collapse
Affiliation(s)
- Michal Kups
- The Fertility Partnership Vitrolive in Szczecin, Szczecin, West Pomeranian Voivodeship, 70-483, Poland
- Department of Urology and Oncological Urology, Regional Specialist Hospital in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-455, Poland
| | - Kamil Gill
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| | - Aleksandra Rosiak-Gill
- The Fertility Partnership Vitrolive in Szczecin, Szczecin, West Pomeranian Voivodeship, 70-483, Poland
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| | - Patryk Harasny
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
- Department of Urology and Urological Oncology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 70-111, Poland
| | - Tomasz Machalowski
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
- Department of Perinatology, Obstetrics and Gynecology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Police, West Pomeranian Voivodeship, 72-010, Poland
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| | - Rafal Kurzawa
- The Fertility Partnership Vitrolive in Szczecin, Szczecin, West Pomeranian Voivodeship, 70-483, Poland
- Department of Gynecology and Reproductive Health, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| | - Olimpia Sipak
- Department of Obstetrics and Pathology of Pregnancy, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, West Pomeranian Voivodeship, 71-210, Poland
| |
Collapse
|
13
|
Romano A, Del Vescovo E, Rivetti S, Triarico S, Attinà G, Mastrangelo S, Maurizi P, Ruggiero A. Biomarkers Predictive of Metabolic Syndrome and Cardiovascular Disease in Childhood Cancer Survivors. J Pers Med 2022; 12:880. [PMID: 35743665 PMCID: PMC9225298 DOI: 10.3390/jpm12060880] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
The improvement in childhood cancer treatments resulted in a marked improvement in the survival of pediatric cancer patients. However, as survival increased, it was also possible to observe the long-term side effects of cancer therapies. Among these, metabolic syndrome is one of the most frequent long-term side effects, and causes high mortality and morbidity. Consequently, it is necessary to identify strategies that allow for early diagnosis. In this review, the pathogenetic mechanisms of metabolic syndrome and the potential new biomarkers that can facilitate its diagnosis in survivors of pediatric tumors are analyzed.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Antonio Ruggiero
- Pediatric Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica Sacro Cuore, 00168 Rome, Italy; (A.R.); (E.D.V.); (S.R.); (S.T.); (G.A.); (S.M.); (P.M.)
| |
Collapse
|
14
|
Wang SK, Lee MC, Hung CL, Chen HH, Liao CC, Chiu YL. Association between hypertriglyceridemic waist phenotype and hypogonadism in Taiwanese adult men. PLoS One 2022; 17:e0265629. [PMID: 35320301 PMCID: PMC8942218 DOI: 10.1371/journal.pone.0265629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 03/04/2022] [Indexed: 11/19/2022] Open
Abstract
Background Aging-related hypogonadism in men is related to the deterioration of overall health. Those with this disease rarely receive treatment. The hypertriglyceridemic waist (HTGW) phenotype is a tool for predicting abnormalities of cardiovascular metabolism. However, the relationship between the HTGW phenotype and hypogonadism remains undetermined. This study aimed to determine the association between HTGW phenotype and hypogonadism in different age groups. Methods Data of this cross-sectional study were obtained from MJ Health Screening Center in Taiwan from 2007 to 2016. The HTGW phenotype was divided into four categories based on whether the waist circumference (WC) and triglyceride levels were normal. WC of <90 cm and triglyceride level of <150 mg/dL were defined as normal. Hypogonadism was defined as a testosterone level of <300 ng/dL. Results Overall, 6442 male participants were divided into three age groups: <50, 50–64, and ≥65 years (n = 4135, 1958, and 349; age groups 1, 2, and 3, respectively). The overall prevalence of hypogonadism was 10.6%. In group 1, participants with HTGW (odds ratio, 1.98; 95% confidence interval (CI), 1.354–2.896) had a higher risk of hypogonadism than those with normal WC and normal triglyceride levels after adjustment for body mass index and fasting blood glucose level. In group 2, participants with HTGW (odds ratio, 1.873; 95% CI, 1.099–3.193) had an increased risk of hypogonadism after adjustment for body mass index, fasting blood glucose level, Cholesterol levels, high-density lipoprotein (HDL) levels, low-density lipoprptein (LDL) levels and smoking status. However, no relationship was observed between HTGW phenotype and hypogonadism in group 3. Conclusion HTGW phenotype was highly associated with hypogonadism in Taiwanese adult men. More attention should be paid to men aged <50 years with HTGW.
Collapse
Affiliation(s)
- Sheng-Kuang Wang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Medical Administrative Department, Taichung Army Forces General Hospital, Taichung, Taiwan
| | - Meng-Chih Lee
- Department of Family Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
- College of Management, Chaoyang University of Technology, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Chia-Lien Hung
- Department of Medical Education and Research, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Hsin-Hung Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asia University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Law, Providence University, Taichung, Taiwan
- Chung Sheng clinic, Nantou, Taiwan
| | - Chun-Cheng Liao
- Department of Medical Education and Research, Taichung Armed Forces General Hospital, Taichung, Taiwan
- Department of Family Medicine, Taichung Armed Forces General Hospital, Taichung, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (CCL); (YLC)
| | - Yu-Lung Chiu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- School of Public Health, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (CCL); (YLC)
| |
Collapse
|
15
|
Almabhouh FA, Singh HJ. Systematic Review of Literature Documenting the Link Between BMI, Sperm Parameters, and Leptin. FERTILITY & REPRODUCTION 2022. [DOI: 10.1142/s2661318222500013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Leptin administration to rats causes adverse effects on sperm that resemble those reported in obese males. The purpose of this review is, therefore, to examine whether human and animal studies have taken this information on board and have attempted to link the poor sperm quality in obese or overweight individuals to leptin in their methodology, data analysis, and discussion. The review also documents the link between low sperm quality in the obese and leptin. Method: A search was made for articles reporting body mass index (BMI), sperm parameters, and leptin, published until September 2020 in PubMed, Science Direct, Google Scholar, and Springer Link using a number of search terms. Results: Forty-four of the 53 human and animal studies on BMI and sperm parameters reported abnormal sperm parameters in the obese but only 9 of those had measured serum leptin. None, however, attempted to link sperm abnormalities to leptin. Nine animal studies report of adverse effects of leptin on sperm in normal weight rats that were found to be similar to those reported in obese males. Conclusion: Although none of the human studies had actually linked the raised leptin to sperm abnormalities in the obese, there is nevertheless, convincing evidence linking leptin to obesity-related poor sperm quality and male infertility. There is a need, therefore, to include measures that will help reduce the impact of raised leptin levels on male reproductive function, particularly, in obese infertile or subfertile males.
Collapse
Affiliation(s)
- Fayez A. Almabhouh
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Harbindar Jeet Singh
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
- I-PerFForm, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| |
Collapse
|
16
|
Akhtar MF, Shafiq M, Ali I. Improving Gander Reproductive Efficacy in the Context of Globally Sustainable Goose Production. Animals (Basel) 2021; 12:44. [PMID: 35011150 PMCID: PMC8749758 DOI: 10.3390/ani12010044] [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: 09/23/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 02/05/2023] Open
Abstract
The goose is a popular poultry species, and in the past two decades the goose industry has become highly profitable across the globe. Ganders low reproductive performance remains a barrier to achieving high fertility and hatchability in subsequent flocks. To address the global demand for cheaper animal protein, various methodologies for improving avian (re)production should be explored. A large amount of literature is available on reproduction traits and techniques for commercial chicken breeder flocks, while research on improved reproduction in ganders has been carried out to a lesser extent. The present review aims to provide a comprehensive literature overview focusing on recent advancements/techniques used in improving gander reproductive efficacy in the context of ensuring a globally sustainable goose industry.
Collapse
Affiliation(s)
- Muhammad Faheem Akhtar
- Jiangsu Province Key Laboratory for Molecular and Medical Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210023, China
- Research Institute of Donkey High-Efficiency Breeding and Ecological Feeding, College of Agronomy, Liaocheng University, Liaocheng 252000, China
| | - Muhammad Shafiq
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou 515063, China;
| | - Ilyas Ali
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
| |
Collapse
|
17
|
Harries V, Bribiescas RG. Replicability of leptin associations with testosterone, estradiol, follicle-stimulating hormone, and luteinizing hormone in healthy Ache men of Paraguay: A multiple daily assessment. Am J Hum Biol 2021; 34:e23638. [PMID: 34213036 DOI: 10.1002/ajhb.23638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE Associations between leptin and male reproductive hormone levels have been reported in men. However, few of these investigations have focused on associations in healthy men without obesity or overweight or nonindustrial societies. METHODS We test hypotheses that leptin is associated with testosterone, estradiol, luteinizing hormone (LH), and follicle-stimulating hormone (FSH) within healthy Ache men, an indigenous nonindustrialized South American community using archived data. RESULTS Archived data of serum FSH, LH, leptin, and salivary testosterone and estradiol levels collected from healthy Ache men (n = 17, mean age = 37.1 ± 14.2) on two separate days revealed leptin was correlated with FSH (D1 p = .07, D2 p = .009) and PM testosterone (TsalPM, D1 p = .05, D2 p = .05). However, controlling for age, associations with FSH were not significant. Mean comparisons and linear regression of values over 2 days resulted in leptin (t = 0.08, p = .94, r2 = .58, p = .0009), LH (t = 1.16, p = .26, r2 = .11, p = .27), FSH (U = 131.5, p = .88, r2 = .63, p = .0002), AM testosterone (TsalAM, t = 4.0, p = .001, r2 = .02, p = 0.75), and TsalPM (t = 2.99, p = .01, r2 = .56, p = .01). CONCLUSION We conclude (a) FSH, TsalPM, and leptin levels within individual men are relatively invariant over a span of days; (b) despite small sample sizes, results suggest ecological and lifestyle variation can contribute to variation in leptin associations with male reproductive hormones.
Collapse
Affiliation(s)
- Victoria Harries
- Department of Anthropology, Yale University, New Haven, Connecticut, USA
| | | |
Collapse
|
18
|
Environmental and occupational exposures associated with male infertility. ACTA ACUST UNITED AC 2021; 72:101-113. [PMID: 34187108 PMCID: PMC8265198 DOI: 10.2478/aiht-2021-72-3510] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 05/01/2021] [Indexed: 12/30/2022]
Abstract
The upsurge in male infertility over the last two decades, possibly due to environmental exposure, has raised significant interest, particularly boosted by reports from fertility clinics, which showed that chronic diseases and hereditary or other medical conditions might only partially explain current incidence of male infertility. Both environmental and occupational settings may have a significant role in exposure to complex mixtures of endocrine disruptors (ED), which play a major role in fertility disorders. The aim of this review is to give an insight into the current knowledge on exposure settings which may be associated with male infertility. Our study relied on a systematic search of PubMed, Scopus, and Web of Science for articles published between January 2000 and September 2020. It showed that some well documented factors associated with male infertility include smoking, and physiological disturbances or chronic diseases such as obesity and diabetes, which in turn, may also reflect lifestyle choices and environmental exposures, especially to EDs such as phthalates, bisphenols, pesticides, and flame retardants. However, the number of studies on the aetiology of male infertility is still too low in comparison with the size of affected population. Occupational health follow-ups and medical surveillance do not collect any data on male infertility, even though ED chemicals are part of many technological processes.
Collapse
|
19
|
Lei MM, Dai ZC, Zhu HX, Chen R, Chen Z, Shao CR, Shi ZD. Impairment of testes development in Yangzhou ganders by augmentation of leptin receptor signaling. Theriogenology 2021; 171:94-103. [PMID: 34051590 DOI: 10.1016/j.theriogenology.2021.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 10/21/2022]
Abstract
The aim of this study was to determine the cellular and molecular mechanisms of leptin (LEP) and the leptin receptor (LEPR) in testicular development of prepubertal ganders. In an in vivo animal experiment, active immunization against LEPR severely depressed prepubertal testicular development by significantly reducing testicular weights at 200 and 227 days of age. The number of elongated spermatids in the seminiferous tubules was also significantly decreased by immunization with LEPR at ages of 200 and 227 days. Inhibition of testicular development by LEPR immunization was associated with decreases in LHR, StAR, 3β-HSD, CYP11A1, CYP17A1, and PRLR mRNA expression levels in testicular tissue, which resulted in a significant decrease in testosterone synthesis. In the in vitro experiments, the addition of LEP combined with anti-LEPR antibodies strengthened LEPR signal transduction, and inhibited significantly testosterone production in cultured Leydig cells isolated from prepubertal gander testes. The mRNA expression of LHR, StAR, 3β-HSD, CYP11A1, CYP17A1 also decreased significantly after treatment with LEP combined with anti-LEPR antibodies in cultured Leydig cells. These results suggest that anti-LEPR antibodies strengthen LEPR signaling transduction in the presence of LEP, and immunization against LEPR inhibited testes development and testosterone secretion in prepubertal ganders.
Collapse
Affiliation(s)
- M M Lei
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - Z C Dai
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - H X Zhu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - R Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - Z Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - C R Shao
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China
| | - Z D Shi
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China.
| |
Collapse
|
20
|
Fatima S, Alwaznah R, Aljuraiban GS, Wasi S, Abudawood M, Abulmeaty M, Berika MY, Aljaser FS. Effect of seminal redox status on lipid peroxidation, apoptosis and DNA fragmentation in spermatozoa of infertile Saudi males. Saudi Med J 2021; 41:238-246. [PMID: 32114595 PMCID: PMC7841563 DOI: 10.15537/smj.2020.3.24975] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Objectives: To assess the effect of seminal redox status on lipid peroxidation (LPO), apoptosis and integrity of sperm DNA in infertile males. Methods: In this case-control study, the total antioxidant status (TAS) and reactive oxygen species (ROS) levels were analyzed within the seminal plasma of fertile normozoospermic, n=40 and infertile (asthenozoospermic, n=30; oligoasthenoteratozoospermic, n=30) males. Additionally, the level of 4-hydroxynonenal (4-HNE), DNA fragmentation, and caspase-3 activity were estimated in the spermatozoa. Results: Significantly (p<0.001) increased seminal ROS level with decreased TAS scores was observed in the infertile groups compared to normozoospermics. The infertile males showed marked elevated (p<0.001) levels of 4-HNE, DNA fragmentation and caspase-3 activity compared to normozoospermics, which was positively correlated to increased seminal ROS levels and negatively to the TAS score in the studied groups. Seminal ROS level was significantly inverse correlated to the semen parameters. Additionally, a strong negative correlation between DNA fragmentation, LPO, caspase-3activity and seminal parameters were observed. Conclusion: Seminal oxidative stress is a potential risk factor for LPO, DNA damage, and apoptosis in spermatozoa, which can affect semen quality and male fertility. Thus, in addition to conventional seminological parameters, measurement of seminal oxidative stress and sperm DNA integrity may also be employed to investigate the functional integrity of spermatozoa at the molecular level.
Collapse
Affiliation(s)
- Sabiha Fatima
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia. E-mail.
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Salas-Huetos A, Maghsoumi-Norouzabad L, James ER, Carrell DT, Aston KI, Jenkins TG, Becerra-Tomás N, Javid AZ, Abed R, Torres PJ, Luque EM, Ramírez ND, Martini AC, Salas-Salvadó J. Male adiposity, sperm parameters and reproductive hormones: An updated systematic review and collaborative meta-analysis. Obes Rev 2021; 22:e13082. [PMID: 32705766 DOI: 10.1111/obr.13082] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 12/19/2022]
Abstract
The present updated systematic review and meta-analysis aims to summarize the evidence from published studies with low risk for any important bias (based on methodological quality assessment) investigating the potential associations of adiposity with sperm quality and reproductive hormones. We conducted a systematic search of the literature published in MEDLINE-PubMed and EMBASE through June 2019. Based on the criteria in our review, 169 eligible publications were used for data abstraction. Finally, 60 articles were included in the qualitative analysis and 28 in the quantitative analysis. Our systematic review results indicated that overweight and/or obesity were associated with low semen quality parameters (i.e., semen volume, sperm count and concentration, sperm vitality and normal morphology) and some specific reproductive hormones (e.g., inhibin B, total testosterone and sex hormone-binding globulin). Overweight and/or obesity were also positively associated with high estradiol concentrations. Meta-analysis indicated that overweight and/or obesity categories were associated with lower sperm quality (i.e., semen volume, sperm count and concentration, sperm vitality, total motility and normal morphology), and underweight category was likewise associated with low sperm normal morphology. In conclusion, our results suggest that maintaining a healthy body weight is important for increasing sperm quality parameters and potentially male fertility.
Collapse
Affiliation(s)
- Albert Salas-Huetos
- Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Leila Maghsoumi-Norouzabad
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - 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
| | - 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
| | - Kenneth I Aston
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, 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
| | - Nerea Becerra-Tomás
- Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain
| | - Ahmad Zare Javid
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Abed
- Aras Hospital, Iran Social Security Organization, Parsabad, Ardabil, Iran
| | - Pedro Javier Torres
- Instituto de Fisiología, Facultad de Ciencias Médicas (FCM), Universidad Nacional de Córdoba, Córdoba, Argentina
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)-FCM, Córdoba, Argentina
| | - Eugenia Mercedes Luque
- Instituto de Fisiología, Facultad de Ciencias Médicas (FCM), Universidad Nacional de Córdoba, Córdoba, Argentina
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)-FCM, Córdoba, Argentina
| | - Nicolás David Ramírez
- Instituto de Fisiología, Facultad de Ciencias Médicas (FCM), Universidad Nacional de Córdoba, Córdoba, Argentina
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)-FCM, Córdoba, Argentina
| | - Ana Carolina Martini
- Instituto de Fisiología, Facultad de Ciencias Médicas (FCM), Universidad Nacional de Córdoba, Córdoba, Argentina
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)-FCM, Córdoba, Argentina
| | - Jordi Salas-Salvadó
- Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain
- Nutrition Unit, University Hospital of Sant Joan de Reus, Reus, Spain
| |
Collapse
|
22
|
Abstract
PURPOSE OF REVIEW Several studies suggest a strong association between leptin, obesity, and infertility with respect to the hypothalamic-pituitary-gonadal (HPG) axis, androgen regulation, and sperm production, but the direct mechanistic association between these is still largely unexplored. This review focuses on understanding the association between leptin, obesity, and male infertility. RECENT FINDINGS Obesity is linked to fertility dysfunction in both genders. Obesity in men may affect their fertility by impaired spermatogenesis, reduced testosterone levels, erectile dysfunction, and poor libido by putatively targeting the HPG and hypothalamic-pituitary-adrenal axes. Leptin plays key roles in many metabolic functions, including reproduction. High concentrations of leptin have been found in infertile men with disorders affecting the testicular parenchyma, including nonobstructive azoospermia, oligozoospermia, and oligo-astheno-teratozoospermia. Additionally, serum leptin levels have negative associations with serum testosterone levels and sperm parameters and positive associations with serum follicle-stimulating hormone and luteinizing hormone levels and abnormal sperm morphology. SUMMARY Excessive leptin production may be a significant contributor to the development of androgen insufficiency and reduced reproductive function in obese men. Understanding the relation between leptin, obesity, and reproduction may shed light on future targeted treatments for male infertility.
Collapse
|
23
|
Crisóstomo L, Pereira SC, Monteiro MP, Raposo JF, Oliveira PF, Alves MG. Lifestyle, metabolic disorders and male hypogonadism - A one-way ticket? Mol Cell Endocrinol 2020; 516:110945. [PMID: 32707080 DOI: 10.1016/j.mce.2020.110945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/27/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022]
Abstract
Hypogonadism is more frequent among men with common metabolic diseases, notably obesity and type 2 diabetes. Indeed, endocrine disruption caused by metabolic diseases can trigger the onset of hypogonadism, although the underlying molecular mechanisms are not entirely understood. Metabolic diseases are closely related to unhealthy lifestyle choices, such as dietary habits and sedentarism. Therefore, hypogonadism is part of a pathological triad gathering unhealthy lifestyle, metabolic disease and genetic background. Additionally, hypogonadism harbors the potential to aggravate underlying metabolic disorders, further sustaining the mechanisms leading to disease. To what extent does lifestyle intervention in men suffering from these metabolic disorders can prevent, improve or reverse hypogonadism, is still controversial. Moreover, recent evidence suggests that the metabolic status of the father is related to the risk of inter and transgenerational inheritance of hypogonadism. In this review, we will address the proposed mechanisms of disease, as well as currently available interventions for hypogonadism.
Collapse
Affiliation(s)
- Luís Crisóstomo
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - Sara C Pereira
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - Mariana P Monteiro
- Department of Anatomy, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - João F Raposo
- NOVA Medical School - New University Lisbon, Lisbon, Portugal; APDP - Diabetes Portugal, Lisbon, Portugal
| | - Pedro F Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Portugal
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal.
| |
Collapse
|
24
|
Rehman R, Zafar A, Fatima SS, Mohib A, Sheikh A. Altered sperm parameters and subclinical hypothyroidism; A cross sectional study in Karachi, Pakistan. Int J Clin Pract 2020; 74:e13555. [PMID: 32453880 DOI: 10.1111/ijcp.13555] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/18/2020] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The purpose of this study is to compare the thyroid hormone (TH) profile in male infertile subjects with normal and altered sperm parameters and assess its relationship with spermogram and reproductive hormones. DESIGN This cross-sectional study was conducted in Karachi from August 2017 till September 2018 on 376 male subjects between 25 and 55 years of age. The reference values for the "Normal Sperm Parameters" group was; sperm count (TC) >39 million per ejaculate, total sperm motility (Progressive and Non-progressive) >40% and normal morphology of ≥4%. Male subjects, having any one of the sperm parameters below the reference values comprised the group of "Altered Sperm Parameters". The thyroid profile; Thyroxine (T4), triiodothyronine (T3), thyroid stimulating hormone, Thyroid Peroxidase antibodies (Anti-TPO) was estimated in addition to reproductive hormones Testosterone and Sex hormone binding globulin (SHBG). Independent sample T test and Analysis of Variance was applied for comparison of groups. Linear regression was performed and unadjusted and adjusted beta coefficient with 95% CI was reported. A P-value of <.05 was considered significant. RESULTS Two hundred and sixteen subjects had normal, whereas 160 had "Abnormal Sperm Parameters." In "Normal Sperm Parameter" group; 206 (95.3%) were euthyroid while 10 (4.6%) were having subclinical hypothyroidism (SCH). Among the "Abnormal Sperm Parameters" group; eighty-seven (54%) subjects were euthyroid, sixty-two (38.75%) had SCH and eleven (6.8%) were having overt hypothyroidism. Testosterone and SHBG were significantly lower in "Altered Sperm Parameters" group as compared with "Normal Sperm Parameters" (P < .001 for both). CONCLUSION A higher frequency of SCH, decreased levels of testosterone and SHBG was observed in the "Altered Sperm Parameters" group. The results establish relationship of disturbance in TH with alteration of sperm parameters and reproductive hormones thus contributing to male infertility.
Collapse
Affiliation(s)
- Rehana Rehman
- Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
| | - Amara Zafar
- Dr Ruth Pfau Civil Hospital Karachi, Dow University of Health Sciences, Karachi, Pakistan
| | - Syeda S Fatima
- Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
| | - Aleena Mohib
- Dr Ruth Pfau Civil Hospital Karachi, Dow University of Health Sciences, Karachi, Pakistan
| | - Aisha Sheikh
- Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
- Section of Endocrinology, Department of Medicine, Aga Khan University, Karachi, Pakistan
| |
Collapse
|
25
|
Oxidized-LDL inhibits testosterone biosynthesis by affecting mitochondrial function and the p38 MAPK/COX-2 signaling pathway in Leydig cells. Cell Death Dis 2020; 11:626. [PMID: 32796811 PMCID: PMC7429867 DOI: 10.1038/s41419-020-02751-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/18/2022]
Abstract
Abnormal lipid/lipoprotein metabolism induced by obesity may affect spermatogenesis by inhibiting testosterone synthesis in Leydig cells. It is crucial to determine which components of lipoproteins inhibit testosterone synthesis. Circulating oxidized low-density lipoprotein (oxLDL), the oxidized form of LDL, has been reported to be an independent risk factor for decreased serum testosterone levels. However, whether oxLDL has a damaging effect on Leydig cell function and the detailed mechanisms have been rarely studied. This study first showed the specific localization of oxLDL and mitochondrial structural damage in testicular Leydig cells of high-fat diet-fed mice in vivo. We also found that oxLDL reduced the mitochondrial membrane potential (MMP) by disrupting electron transport chain and inhibited testosterone synthesis-related proteins and enzymes (StAR, P450scc, and 3β‑HSD), which ultimately led to mitochondrial dysfunction and decreased testosterone synthesis in Leydig cells. Further experiments demonstrated that oxLDL promoted lipid uptake and mitochondrial dysfunction by inducing CD36 transcription. Meanwhile, oxLDL facilitated COX2 expression through the p38 MAPK signaling pathway in Leydig cells. Blockade of COX-2 attenuated the oxLDL-induced decrease in StAR and P450scc. Our clinical results clarified that the increased serum oxLDL level was associated with a decline in circulating testosterone levels. Our findings amplify the damaging effects of oxLDL and provide the first evidence that oxLDL is a novel metabolic biomarker of male-acquired hypogonadism caused by abnormal lipid metabolism.
Collapse
|
26
|
Suleiman JB, Nna VU, Othman ZA, Zakaria Z, Bakar ABA, Mohamed M. Orlistat attenuates obesity‐induced decline in steroidogenesis and spermatogenesis by up‐regulating steroidogenic genes. Andrology 2020; 8:1471-1485. [DOI: 10.1111/andr.12824] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/26/2020] [Accepted: 05/17/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Joseph Bagi Suleiman
- Department of Physiology School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
- Department of Physiology
- Faculty of Basic Medical Sciences
- College of Medical Sciences Akanu Ibiam Federal Polytechnic Unwana Nigeria
| | - Victor Udo Nna
- Department of Physiology Faculty of Basic Sciences College of Medical Sciences University of Calabar Calabar Nigeria
| | - Zaidatul Akmal Othman
- Department of Physiology School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
- Unit of Physiology Faculty of Medicine Universiti Sultan Zainal Abidin Kuala Terengganu Terengganu Malaysia
| | - Zaida Zakaria
- Department of Physiology School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
| | - Ainul Bahiyah Abu Bakar
- Department of Physiology School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
| | - Mahaneem Mohamed
- Department of Physiology School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
- Unit of Integrative Medicine School of Medical Sciences Universiti Sains Malaysia Kubang Kerian Kelantan Malaysia
| |
Collapse
|
27
|
Abstract
PURPOSE OF REVIEW To review the evidence regarding a decrease in worldwide sperm parameters and discuss potential causative factors. RECENT FINDINGS The topic of worldwide decline in sperm parameters is contentious; however, recent high-quality studies have demonstrated that there is indeed a decline in sperm parameters. Several retrospective and basic science studies have shown possible links for this decline in sperm parameters such as obesity, diet, and environmental toxins. SUMMARY There exist substantial data to suggest a decline in sperm counts over time. Although causative factors have yet to be fully elucidated, potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins. How this decline in sperm counts reflects fertility has yet to be determined. As such, further studies are necessary to evaluate whether this decline in sperm count correlates with decreased fecundity and how to identify and mitigate potential causative factors.
Collapse
Affiliation(s)
- Uday Mann
- Section of Urology, Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | |
Collapse
|
28
|
Sun K, Wang C, Lao G, Lin D, Huang C, Li N, Li L, Li F, Xiao H, Yan L. Lipid accumulation product and late-onset hypogonadism in middle-aged and elderly men: results from a cross-sectional study in China. BMJ Open 2020; 10:e033991. [PMID: 32047018 PMCID: PMC7045028 DOI: 10.1136/bmjopen-2019-033991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Hypogonadism in men is related to the deterioration of general health. However, the association between lipid overaccumulation and ageing-related hypogonadism remains an undetermined concept. We aimed to provide an insight into the possible links between the lipid accumulation product (LAP) and late-onset hypogonadism (LOH). SETTING Sun Yat-sen Memorial Hospital of Sun Yat-sen University. PARTICIPANTS We included a population sample of 997 subjects aged 40 years or older. PRIMARY AND SECONDARY OUTCOME MEASURES The LAP was calculated by gender-specific equations using waist circumference (WC) and triglyceride (TG). LOH was defined by the presence of androgen deficiency symptoms and low serum total testosterone levels. RESULTS The prevalence of LOH was 9.4% in this population and gradually increased according to increasing LAP quartiles. Compared with subjects without LOH, ageing men with LOH had higher body mass index, WC, systolic blood pressure, percentage of subjects currently smoking, TG and follicle stimulating hormone and lower low-density lipoprotein cholesterol and sex hormone binding globulin. In multivariate logistic regression analysis, the adjusted ORs of LOH for increasing LAP quartiles 1-4 were 1.00 (reference), 1.10 (95% CI 0.45-2.69), 2.15 (95% CI 0.93-4.94) and 3.83 (95% CI 1.73-8.45), respectively. CONCLUSION Body lipid accumulation evaluated by the LAP is independently associated with the prevalence of LOH in middle-aged and elderly Chinese men.
Collapse
Affiliation(s)
- Kan Sun
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Chengzhi Wang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Guojuan Lao
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Diaozhu Lin
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Chulin Huang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Na Li
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Lingling Li
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Fangping Li
- Department of Endocrinology, The Seventh Affiliated Hospital Sun Yat-sen University, Shenzhen, China
| | - Huisheng Xiao
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Li Yan
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| |
Collapse
|
29
|
Almabhouh FA, Md Mokhtar AH, Malik IA, Aziz NAAA, Durairajanayagam D, Singh HJ. Leptin and reproductive dysfunction in obese men. Andrologia 2019; 52:e13433. [DOI: 10.1111/and.13433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 12/15/2022] Open
Affiliation(s)
| | | | - Ifrah Alam Malik
- Faculty of Medicine Universiti Teknologi MARA Sungai Buloh Malaysia
| | | | | | - Harbindar Jeet Singh
- Faculty of Medicine Universiti Teknologi MARA Sungai Buloh Malaysia
- I‐PerFForm Faculty of Medicine Universiti Teknologi MARA Sungai Buloh Malaysia
| |
Collapse
|