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Yang W, Duan Z, Li G, Geng H, Gao Y, Shen Q, Liu L, Wang G, Zha X, Xu C, Zhou P, Song B, Tang D, Wu H, Wei Z, Tang F, He X. Association of lifestyle and occupational exposure factors with human semen quality: a cross-sectional study of 1060 participants. Syst Biol Reprod Med 2024; 70:150-163. [PMID: 38896558 DOI: 10.1080/19396368.2024.2357348] [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] [Received: 01/08/2024] [Accepted: 03/11/2024] [Indexed: 06/21/2024]
Abstract
The incidence of male infertility (MI) is rising annually. However, the lifestyle and occupational exposure factors contributing to MI remain incompletely understood. This study explored the effects of self-reported lifestyle and occupational exposure factors on semen quality. Among 1060 subjects invited to participate, 826 were eligible. The participants' general characteristics, lifestyle, and occupational exposure factors were collected immediately before or after semen evaluation through an online questionnaire. Initially, univariate analysis was used to investigate the relationship between the abovementioned factors and semen quality. The results indicated significant associations between low semen quality and various factors, including age, BMI, infertility type and duration, abstinence time, semen and sperm parameters, smoking, alcohol consumption, irregular sleep habits, and frequent exposure to high temperatures and chemicals at work (p < 0.05). Then, multivariate analysis was conducted to identify factors independently associated with low semen quality. Adjustment for relevant confounders was achieved by including factors with a p-value < 0.25 from univariate analyses as covariates in the binomial and ordered logistic regression models. The results suggested that alcohol consumption was a positive factor for sperm concentration (odds ratio [OR] = 0.60; 95% confidence interval [CI] = 0.36-0.99; p = 0.045). The groups with a BMI ≥ 24 and <28 kg/m2 showed a significant decrease in sperm progressive motility when compared to the reference group (BMI < 24 kg/m2) (OR = 0.63; 95% CI = 0.46-0.87, p = 0.005). In addition, the groups that drank green tea <1 time/week (OR = 1.52, 95% CI = 1.05-2.2) and 1-4 times/week (OR = 1.61, 95% CI = 1.02-2.54) exhibited significantly increased sperm DFI values compared with the group that drank green tea 5-7 times/week. In conclusion, these findings underscore the importance of maintaining a normal weight and regularly consuming green tea for men.
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Affiliation(s)
- Wen Yang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Zongliu Duan
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Guanjian Li
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Hao Geng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Yang Gao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Qunshan Shen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Liting Liu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Guanxiong Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Xiaomin Zha
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Chuan Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Ping Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Bing Song
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Dongdong Tang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Huan Wu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Ministry of Education of the People's Republic of China, Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Anhui, China
| | - Feng Tang
- Zhejiang Mater Child and Reproductive Health Center, Hangzhou, Zhejiang, China
| | - Xiaojin He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Anhui, China
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Sadeghirad M, Soleimanzadeh A, Shalizar-Jalali A, Behfar M. Synergistic protective effects of 3,4-dihydroxyphenylglycol and hydroxytyrosol in male rats against induced heat stress-induced reproduction damage. Food Chem Toxicol 2024; 190:114818. [PMID: 38880467 DOI: 10.1016/j.fct.2024.114818] [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: 05/09/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Testicular heat stress disrupts spermiogenesis and damages testicular tissue. The study aims to assess 3,4-dihydroxyphenylglycol (DHPG) and hydroxytyrosol (HT) from olive oil as antioxidants to reduce heat-induced testicular damage. Seven groups of 35 male rats were used. Group I got normal saline. Group 2 had HS (43 °C for 20 min/day) and normal saline for 60 days. Groups 3-7 had HS and DHPG/HT doses (0.5 mg/kg DHPG, 1 mg/kg DHPG, 5 mg/kg HT, 0.5 mg/kg DHPG + 5 mg/kg HT, and 1 mg/kg DHPG + 5 mg/kg HT). The evaluation included tests on testicular tissue, sperm quality, oxidative status, gene activity, and fertility after 60 days. After DHPG and HT treatment, sperm motility, viability, and plasma membrane functionality, as well as levels of total antioxidant capacity (TAC), glutathione peroxidase (GPx), superoxide dismutase (SOD), and catalase (CAT), and Bcl-2 gene expression, and in vivo fertility indexes increased. Meanwhile, abnormal morphology and DNA damage decreased, along with levels of glutathione (GSH), nitric oxide (NO), and malondialdehyde (MDA), and Bax, caspase-3, and caspase-9 gene expression, compared to the HS group. The study found that DHPG and HT have a more substantial synergistic effect when used together, improving reproductive health.
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Affiliation(s)
- Milad Sadeghirad
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Ali Soleimanzadeh
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Ali Shalizar-Jalali
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Mehdi Behfar
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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Netherton JK, Ogle RA, Robinson BR, Molloy M, Krisp C, Velkov T, Casagranda F, Dominado N, Silva Balbin Villaverde AI, Zhang XD, Hime GR, Baker MA. The role of HnrnpF/H as a driver of oligoteratozoospermia. iScience 2024; 27:110198. [PMID: 39092172 PMCID: PMC11292545 DOI: 10.1016/j.isci.2024.110198] [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: 11/22/2023] [Revised: 02/20/2024] [Accepted: 06/03/2024] [Indexed: 08/04/2024] Open
Abstract
Male subfertility or infertility is a common condition often characterized by men producing a low number of sperm with poor quality. To gain insight into this condition, we performed a quantitative proteomic analysis of semen samples obtained from infertile and fertile men. At least 6 proteins showed significant differences in regulation of alternatively spliced isoforms. To investigate this link between aberrant alternative splicing and production of poor-quality spermatozoa, we overexpressed the hnrnpH/F-orthologue Glorund (Glo) in Drosophila, which was also found to be abundant in poor quality human sperm. Transgenic animals produced low numbers of morphologically defective spermatozoa and aberrant formation of the "dense body," an organelle akin to the mammalian manchette. Furthermore, fertility trials demonstrated that transgenic flies were either completely infertile or highly subfertile. These findings suggest that dysregulation of hnrnpH/F is likely to result in the production of low-quality semen, leading to subfertility or infertility in men.
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Affiliation(s)
- Jacob K. Netherton
- School of Biomedical Sciences and Pharmacy, Faculty of Medicine and Health, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Rachel A. Ogle
- School of Biomedical Sciences and Pharmacy, Faculty of Medicine and Health, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Benjamin R. Robinson
- School of Biomedical Sciences and Pharmacy, Faculty of Medicine and Health, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mark Molloy
- Australian Proteome Analysis Facility, Department of Biomolecular Sciences, Macquarie University, NSW 2109 Australia
| | - Christoph Krisp
- Australian Proteome Analysis Facility, Department of Biomolecular Sciences, Macquarie University, NSW 2109 Australia
| | - Tony Velkov
- Biomedicine Discovery Institute, Infection & Immunity Program and Department of Microbiology, Monash University, Clayton, VIC 3168, Australia
| | - Franca Casagranda
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Nicole Dominado
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC 3010, Australia
| | | | - Xu Dong Zhang
- School of Biomedical Sciences and Pharmacy, Faculty of Medicine and Health, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Gary R. Hime
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Mark A. Baker
- School of Biomedical Sciences and Pharmacy, Faculty of Medicine and Health, University of Newcastle, Callaghan, NSW 2308, Australia
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Fadhil EB, Mohammed MM, Alkawaz UM. Impact of coenzyme Q10 as an adjuvant therapy to letrozole on spermiogram results and sex hormone levels in Iraqi men with infertility; randomized open label comparative study. F1000Res 2024; 12:1093. [PMID: 38957201 PMCID: PMC11217721 DOI: 10.12688/f1000research.131985.3] [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] [Accepted: 04/10/2024] [Indexed: 07/04/2024] Open
Abstract
Background: Worldwide, infertility affects about 15% of reproductive-age couples. In many cases, infertility can't be treated, however new treatment options with promising value have been involved in recent clinical trials. The aim of this clinical trial was to evaluate the impacts of adding coenzyme Q10 (CoQ10) to letrozole on the results of spermiogram and sex hormone tests in men diagnosed with idiopathic oligoasthenoteratozoospermia (iOAT) syndrome, which is a type of male defective spermatogenesis of unknown etiology. Methods: This randomized, open-label, parallel two-arm interventional study included 67 adult male patients aged 18-60 years with a confirmed diagnosis of iOAT syndrome recruited from The High Institute for Infertility Diagnosis & Assisted Reproduction Technologies/Nahrain University. Patients were randomly separated into two groups, Group A included 29 patients treated with letrozole 2.5 mg tablet orally twice a week, Group B included 38 patients treated with a combination of letrozole 2.5 mg tablet orally twice a week plus CoQ10 400 mg per day. Both groups completed treatment for three months. Semen samples, serum follicle-stimulating hormone (FSH), estradiol (E 2), and testosterone (T) were analyzed at day one, and at the end of month one, two and three. Results: Both groups showed that sperm concentration, normal morphology, total sperm count and motility, serum testosterone and FSH levels, and T/E 2 ratio were significantly increased, while estradiol levels significantly decreased after three months of treatment. Seminal fluid volume changed significantly in group A only. In comparing between the two groups, all measured parameters, apart from sperm motility and FSH level, demonstrated a significant difference after three months of treatment, while sperm volume reached significant value after only two months of therapy. Conclusions: CoQ10 as adjuvant treatment to letrozole effectively improved most of the tested sperm parameters in Iraqi men with iOAT. Registration: ClinicalTrials.gov ( NCT05847257, May 6, 2023).
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Affiliation(s)
- Essa Bahauldeen Fadhil
- Department of Clinical Pharmacy, College of Pharmacy, Mustansiriyah University, Baghdad, Baghdad Governorate, Iraq
| | - Mohammed Mahmood Mohammed
- Department of Clinical Pharmacy, College of Pharmacy, Mustansiriyah University, Baghdad, Baghdad Governorate, Iraq
| | - Ula M. Alkawaz
- High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, Al-Nahrain University, Baghdad, Baghdad Governorate, Iraq
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El-Prollosy A, Iraqi E, Elsayed N, Khalil H, El-Saadany A, El-Sabrout K. Impact of thermal manipulation during embryogenesis on thermotolerance and semen quality of Mandarah roosters exposed to heat stress. Vet World 2024; 17:1311-1317. [PMID: 39077462 PMCID: PMC11283610 DOI: 10.14202/vetworld.2024.1311-1317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 05/28/2024] [Indexed: 07/31/2024] Open
Abstract
Background and Aim The management of incubation conditions impacts embryonic development, hatchability, and post-hatch performance. This study aimed to examine the effects of thermal manipulation (TM) during embryonic development on roosters' thermotolerance, antioxidant activity, immunity, and semen quality under heat-stress conditions. Materials and Methods 1200 fertile eggs were distributed evenly between two groups, each containing three replicates (200 eggs/replicate). The first group (G1) was held in the commercial setter with a consistent temperature of 37.5°C and 55% relative humidity (RH) through the 18-day incubation period, acting as a control, while the second group (G2) experienced these conditions until only the 11th day. The eggs were incubated at 39.5°C with 60% RH for 4 h each day from the 12th to the 18th day. From the 19th to 22nd incubation days, both groups maintained a consistent temperature of 37.2°C with a RH of 70%. Two hundred hatched male chicks per treatment group were moved into a closed-system house. All roosters were exposed to a 6-h daily heat challenge with a temperature of 35°C and a humidity of 70% between their 36th and 40th weeks of age. Results Roosters of G2 exposed to thermal challenge showed improvements (p ≤ 0.05) in multiple blood biochemical, antioxidant, and immunity markers, including total protein, globulin, aspartate aminotransferase, alanine aminotransferase, triiodothyronine, thyroxine, corticosterone, testosterone, total antioxidant capacity, malondialdehyde, immunoglobulin G, immunoglobulin M, and immunoglobulin A levels. Improved semen quality characteristics, including ejaculate volume, sperm concentration, motility, livability, and quality factor, as well as enhanced thermoregulation in post-hatch cocks, were also achieved (p ≤ 0.05). Conclusion To boost antioxidant activity, immunity, thermotolerance, and semen parameters in roosters under heat-stress conditions, TM application during egg incubation, specifically at 12-18 days, is recommended.
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Affiliation(s)
- Ali El-Prollosy
- Department of Poultry Breeding Research, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | - Ebtsam Iraqi
- Department of Poultry Breeding Research, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | - Nadia Elsayed
- Department of Poultry Breeding Research, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | - Hanaa Khalil
- Department of Poultry Breeding Research, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | - Amina El-Saadany
- Department of Poultry Breeding Research, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | - Karim El-Sabrout
- Department of Poultry Production, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
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Díaz Ruiz E, Delgado Bermejo JV, González Ariza A, León Jurado JM, Arando Arbulu A, Navas González FJ. Effects of meteorology and lunar cycle on the post-thawing quality of avian sperm. Front Vet Sci 2024; 11:1394004. [PMID: 38818498 PMCID: PMC11137667 DOI: 10.3389/fvets.2024.1394004] [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: 02/29/2024] [Accepted: 05/02/2024] [Indexed: 06/01/2024] Open
Abstract
Introduction Various climatological and lunar cycle parameters have a direct impact on animal reproduction, and in the case of the avian species, spermatozoa are extremely sensitive to heat stress. These parameters could influence sperm freezability, which will ultimately affect post-thawing semen quality, being sperm motility in roosters a relevant indicator of this quality as it is highly related to fertility. Therefore, the objective of the present study is to determine which are the climatological and lunar cycle parameters that have a greater effect on sperm freezability in roosters. Methods Sperm was obtained from 16 Utrerana breed roosters and a total of 27 replicates were performed. A pool was made with those ejaculates that met the minimum quality criteria for each replicate, and four freezing-thawing samples per replicate were analyzed. The straws were thawed, and sperm motility was evaluated, classifying the results obtained into four seminal quality groups according to the guidelines of the Food and Agriculture Organization of the United Nations (Group 1: Good, Group 2: Satisfactory, Group 3: Acceptable but undesirable and Group 4: Unsatisfactory). The following traits were recorded for each day of semen collection: maximum temperature, minimum temperature, maximum barometric pressure, minimum barometric pressure, maximum gust, wind direction, mean wind speed, sunshine hours, rainfall, moon phase, and percentage of illuminated lunar surface over the total area. Results A discriminant canonical analysis was performed to determine which of these parameters offered the most information when classifying an ejaculate in each quality group, with minimum temperature, the new moon as moon phase, minimum barometric pressure, and rainfall being the most significant variables. Discussion According to the results obtained, semen quality decreases when temperature and precipitation are lower, pressure is higher, and when there is a new moon phase. Therefore, these environmental conditions should be avoided for sperm collection and processing.
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Affiliation(s)
- Esther Díaz Ruiz
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, Córdoba, Spain
| | | | | | | | - Ander Arando Arbulu
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, Córdoba, Spain
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Yang Q, Xie Y, Pan B, Cheng Y, Zhu Y, Fei X, Li X, Yu J, Chen Z, Li J, Xiong X. The Expression and Epigenetic Characteristics of the HSF2 Gene in Cattle-Yak and the Correlation with Its Male Sterility. Animals (Basel) 2024; 14:1410. [PMID: 38791628 PMCID: PMC11117389 DOI: 10.3390/ani14101410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/29/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
Aberrant expression of the heat shock proteins and factors was revealed to be closely associated with male reproduction. Heat shock factor 2 (HSF2) is a transcription factor that is involved in the regulation of diverse developmental pathways. However, the role and the corresponding molecular mechanism of HSF2 in male cattle-yak sterility are still poorly understood. Therefore, the aim of this study was to obtain the sequence and the biological information of the cattle-yak HSF2 gene and to investigate the spatiotemporal expression profiles of the locus during the development of cattle-yak testes. Additionally, the differential expression was analyzed between the cattle-yak and the yak, and the methylation of corresponding promoter regions was compared. Our results showed an additional 54 bp fragment and a missense mutation (lysine to glutamic acid) were presented in the cattle-yak HSF2 gene, which correlated with enriched expression in testicular tissue. In addition, the expression of the HSF2 gene showed dynamic changes during the growth of the testes, reaching a peak in adulthood. The IHC indicated that HSF2 protein was primarily located in spermatocytes (PS), spermatogonia (SP), and Sertoli cells (SC) in cattle-yak testes, compared with the corresponding cells of cattle and the yak. Furthermore, bisulfite-sequencing PCR (BSP) revealed that the methylated CpG sites in the promoter region of the cattle-yak HSF2 were more numerous than in the yak counterpart, which suggests hypermethylation of this region in the cattle-yak. Taken together, the low expression abundance and hypermethylation of HSF2 may underpin the obstruction of spermatogenesis, which leads to male cattle-yak infertility. Our study provided a basic guideline for the HSF2 gene in male reproduction and a new insight into the mechanisms of male cattle-yak sterility.
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Affiliation(s)
- Qinhui Yang
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
| | - Yumian Xie
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
| | - Bangting Pan
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
| | - Yuying Cheng
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
| | - Yanjin Zhu
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
| | - Xixi Fei
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
| | - Xupeng Li
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
| | - Jun Yu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
| | - Zhuo Chen
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
| | - Jian Li
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
| | - Xianrong Xiong
- Key Laboratory for Animal Science of National Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China; (Q.Y.); (Y.X.); (Y.C.); (Y.Z.); (X.L.); (Z.C.); (J.L.)
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Southwest Minzu University, Chengdu 610041, China; (B.P.); (X.F.); (J.Y.)
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Mohammadi T. Ameliorative effects of omega-3 and omega-6 on spermatogenesis, testicular antioxidant status and in vivo fertility index in heat-stressed rats. J Therm Biol 2024; 122:103885. [PMID: 38861860 DOI: 10.1016/j.jtherbio.2024.103885] [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: 01/09/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
The current study aimed to investigate the use of omega-6 (ω6) or omega-3 (ω3) in reducing heat-induced damage to the testicles. This is due to the known detrimental effects of heat and the potential protective properties of ω6 and ω3. In the study, 48 male rats were divided into eight groups, each containing 6 rats. Group I (control) received normal saline. Group 2 was exposed to high temperatures (43 °C for 20 min/day) and also received normal saline for 60 days. Groups 3-7 underwent identical HS conditions and received varying doses of ω6 or ω3 (0.5 mg/kg DHPG, 1 mg/kg DHPG, 5 mg/kg HT, 0.5 mg/kg DHPG + 5 mg/kg HT, and 1 mg/kg DHPG + 5 mg/kg HT), respectively. After 60 days, various tests were conducted on the testicular tissue, sperm quality, oxidative status, gene activity, and in vivo fertility indexes to evaluate the effects of the treatments. Treatment with ω6 and ω3 could reduce abnormal morphology and DNA damage while increasing total and progressive motility, characteristics motility, viability, and plasma membrane functional impairment compared with HS-exposed groups. Antioxidant status levels in testicular tissue were improved after administration of ω6 and ω3. Furthermore, after receiving ω6 and ω3, there were significantly lower expression levels of P53 and Caspase-3 and significantly higher expression levels of Bcl-2 compared to the HS-exposed group. Furthermore, the results showed that administration of ω6 and ω3 to rats exposed to HS could increase their in vivo fertility indexes compared to the group not exposed to HS. According to our data, all doses of ω6 and ω3 (particularly doses of ω6-1.25 and ω3-300) can improve the testicular damage, testicular antioxidant defense mechanism, regulate germ cell apoptosis, and increase in vivo fertility indexes.
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Affiliation(s)
- Tohid Mohammadi
- Department of Basic Science, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.
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Budzinska M, Kamieniczna M, Wojnar L, Gill K, Piasecka M, Kups M, Fraczek M. The role of the intrinsic pathway of apoptosis in human ejaculated sperm damage under a state of scrotal heat stress. J Assist Reprod Genet 2024; 41:99-108. [PMID: 38062334 PMCID: PMC10789687 DOI: 10.1007/s10815-023-02992-9] [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: 08/02/2023] [Accepted: 11/16/2023] [Indexed: 01/17/2024] Open
Abstract
PURPOSE The study aimed to determine the associations among standard sperm characteristics and oxidative/apoptotic markers in ejaculated sperm of men exposed to prolonged scrotal hyperthermia of either environmental or clinical origin. METHODS The original study design included four research groups: professional drivers (n = 54), infertile men with varicocele (n = 78), infertile men not exposed to prolonged genital heat stress (n = 37), and fertile individuals serving as the control group (n = 29). Standard semen analysis was performed according to the 5th WHO laboratory manual. The following oxidative and apoptotic parameters of sperm were investigated: mitochondrial superoxide anion generation (MitoSOX Red dye), phosphatidylserine externalization (Annexin V binding assay), mitochondrial membrane potential (JC-1 dye), DNA fragmentation (TUNEL/PI assay), and membrane fluidity (merocyanine 540 dye). RESULTS All the studied groups presented a strong deterioration in routine sperm parameters and a strongly apoptotic phenotype in sperm, characterized by both decreased mitochondrial membrane potential and enhanced DNA fragmentation, regardless of the thermal insult. Significant induction of mitochondrial superoxide anion generation was noted only in the groups exposed to genital heat stress. A positive correlation between the production of superoxide anion in the mitochondrial chain and the level of DNA fragmentation in drivers was also noted. CONCLUSION Long-term exposure to scrotal hyperthermia in real-life situations is sufficient to reduce sperm quality in humans. The thermal stress directly induces the oxidative stress cascade in ejaculated sperm, affecting the plasma membrane fluidity, mitochondrial homeostasis, and sperm DNA integrity.
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Affiliation(s)
- Marta Budzinska
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Marzena Kamieniczna
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Lukasz Wojnar
- Clinic of Urology and Oncological Urology, Poznan University of Medical Sciences, Poznan, Poland
| | - Kamil Gill
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Michal Kups
- Department and Clinic of Urology and Oncological Urology, Regional Specialist Hospital in Szczecin, Szczecin, Poland
- The Fertility Partnership Vitrolive in Szczecin, Szczecin, Poland
| | - Monika Fraczek
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland.
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10
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Törzsök P, Oswald D, Steiner C, Abenhardt M, Ramesmayer C, Milinovic L, Plank B, Tischleritsch Z, Lusuardi L, Deininger S. Effects of COVID-19 Infection on Spermatogenesis, Oxidative Stress and Erectile Function. J Clin Med 2023; 12:7099. [PMID: 38002711 PMCID: PMC10672023 DOI: 10.3390/jcm12227099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/24/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Our aim was to evaluate the effect of COVID-19 infection on male fertility and sexual function. METHODS Thirty-one patients were investigated over a mean follow-up of 90 days (22-527) after a COVID-19 infection. Erectile dysfunction (ED), blood tests for sexual hormones, semen analysis including analysis of oxidative stress (OS), as well as COVID-19 antibody titer and the nasal COVID-19 PCR test were evaluated pre- and post-infection. RESULTS Five patients reported a mild de novo ED (16.13%). One patient had a de novo positive mixed antiglobulin reaction test after the infection. We found no significant difference between pre-COVID-19 and post-COVID-19 spermiogram parameters (p = 0.815). OS showed no significant association with COVID-19 infection, but with pathological spermiogram categories, sperm concentration, total sperm count, testis volume, FSH and testosterone. CONCLUSION COVID-19 infection does not appear to affect sperm quality and OS negatively in the intermediate term. Further investigations will be needed to assess the potential long-term effects of the infection and vaccination on male sexual function and fertility.
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Affiliation(s)
- Peter Törzsök
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - David Oswald
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Christopher Steiner
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Michael Abenhardt
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Christian Ramesmayer
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Ljiljana Milinovic
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Bethseba Plank
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | | | - Lukas Lusuardi
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
| | - Susanne Deininger
- Department of Urology and Andrology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (D.O.); (C.S.); (M.A.); (C.R.); (L.M.); (B.P.); (L.L.); (S.D.)
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11
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Raoofi A, Omraninava M, Javan R, Maghsodi D, Rustamzadeh A, Nasiry D, Ghaemi A. Protective effects of epigallocatechin gallate in the mice induced by chronic scrotal hyperthermia. Tissue Cell 2023; 84:102165. [PMID: 37480630 DOI: 10.1016/j.tice.2023.102165] [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: 04/28/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/24/2023]
Abstract
One of the most common complications of chronic scrotal hyperthermia (SHT) is a serious disorder in the male reproductive system. The most important factor in the occurrence of these disorders is oxidative stress. Currently, we investigated the effects of epigallocatechin gallate (EGCG), as a highly potent antioxidant, against cells and tissue disorders in mice affected by chronic SHT. Fifty-six male adult NMRI mice were allocated into seven equal groups. Except the non-treated (Control) group, six other groups were exposed to heat stress. Two treated groups including Preventive and Curative received oral administration of EGCG (50 mg/kg/day) starting immediately before heat exposure and fifteen consecutive days after the end of the heat exposure, respectively. For each treated group, two subgroups including positive control (Pre/Cur + PC groups) and vehicle (Pre/Cur + vehicle groups) were considered. At the end of the study, sperm characteristics, testosterone levels, stereological parameters, apoptosis, oxidant state, and molecular assessments were performed. We found that the sperm parameters, testosterone levels, the numerical density of spermatogonia, primary spermatocytes, spermatids, sertoli, leydig cells, and seminiferous tubules, biochemical factors (except MDA), and expression of c-kit gene were significantly higher in the Preventive and Curative groups, especially in Preventive ones, compared to other groups (P < 0.05). This is while expression of HSP72 and NF-κβ genes, MDA levels, as well as density of apoptotic cells considerably decreased in both EGCG-treated groups compared to other groups and it was more pronounced in Preventive ones (P < 0.05). Generally, EGCG attenuated cellular and molecular disorders induced by heat stress in the testis and it was more pronounced in Preventive status.
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Affiliation(s)
- Amir Raoofi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Melody Omraninava
- Health Reproductive Research Center, Islamic Azad University, Sari, Iran
| | - Roghayeh Javan
- Traditional and Complementary Medicine Research Center, Sabzevar University of Medical Science, Sabzevar, Iran
| | - Davood Maghsodi
- Student Research Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Auob Rustamzadeh
- Department of Anatomical sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Davood Nasiry
- Department of Paramedicine, Amol School of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Alireza Ghaemi
- Department of Basic Sciences and Nutrition, Health Sciences Research Center, Faculty of Public Health, Mazandaran University of Medical Sciences, Sari, Iran.
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12
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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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13
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Ziaeipour S, Norouzian M, Abbaszadeh HA, Aliaghaei A, Nazarian H, Karamian A, Tabeie F, Naserzadeh P, Abdi S, Abdollahifar MA, Paktinat S. Photobiomodulation therapy reverses spermatogenesis arrest in hyperthermia-induced azoospermia mouse model. Lasers Med Sci 2023; 38:114. [PMID: 37103593 DOI: 10.1007/s10103-023-03780-8] [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: 05/04/2022] [Accepted: 04/20/2023] [Indexed: 04/28/2023]
Abstract
Testicular heat stress leads to impairment of spermatogenesis in mammals. Involved mechanism in this vulnerability to heat-induced injury remains unclear, and research is being conducted to find an approach to reverse spermatogenesis arrest caused by hyperthermia. Recently, different studies have utilized photobiomodulation therapy (PBMT) therapy for the improvement of sperm criteria and fertility. This study aimed at evaluating the effect of PBMT on the improvement of spermatogenesis in mouse models of hyperthermia-induced azoospermia. A total of 32 male NMRI mice were equally divided into four groups consisting of control, hyperthermia, hyperthermia + Laser 0.03 J/cm2, and hyperthermia + Laser 0.2 J/cm2. To induce scrotal hyperthermia, mice were anesthetized and placed in a hot water bath at 43 °C for 20 min for 5 weeks. Then, PBMT was operated for 21 days using 0.03 J/cm2 and 0.2 J/cm2 laser energy densities in the Laser 0.03 and Laser 0.2 groups, respectively. Results revealed that PBMT with lower intensity (0.03 J/cm2) increased succinate dehydrogenase (SDH) activity and glutathione (GSH)/oxidized glutathione (GSSG) ratio in hyperthermia-induced azoospermia mice. At the same time, low-level PBMT reduced reactive oxygen species (ROS), mitochondrial membrane potential, and lipid peroxidation levels in the azoospermia model. These alterations accompanied the restoration of spermatogenesis manifested by the elevated number of testicular cells, increased volume and length of seminiferous tubules, and production of mature spermatozoa. After conducting experiments and analyzing the results, it has been revealed that the use of PBMT at a dosage of 0.03 J/cm2 has shown remarkable healing effects in the heat-induced azoospermia mouse model.
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Affiliation(s)
- Sanaz Ziaeipour
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Mohsen Norouzian
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Hojjat-Allah Abbaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Abbas Aliaghaei
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Hamid Nazarian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Amin Karamian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Faraj Tabeie
- Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parvaneh Naserzadeh
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mohammad-Amin Abdollahifar
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran.
| | - Shahrokh Paktinat
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran.
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Cai D, Li X, Xu Q, Li H, Liu R, Chen J, Jiang X, Sun J, Lai C, Bai W. Cyanidin-3- O-glucoside and protocatechuic acid alleviate heat stress-induced testicular damage. Food Funct 2023; 14:2200-2211. [PMID: 36756975 DOI: 10.1039/d2fo03423a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Testicular hyperthermia induced by unhealthy living habits and pathological or occupational factors can cause spermatogenic dysfunction with an outcome of sub-fertility or even infertility. Cyanidin-3-O-glucoside (C3G) is the most typical anthocyanin in foods that has been recognized as an antioxidant with promising protection for male reproduction. However, its specific effect against testicular hyperthermia and the mechanisms involving its primary gastrointestinal metabolite protocatechuic acid (PCA) are still unexplored. In the present study, testicular hyperthermia in mice was established by employing a single hot water bath at 43 °C for 30 min. C3G and PCA were intragastrically given to investigate their prevention ability against heat stress-induced testicular damage. It was found that C3G and PCA restored the external diameter and thickness, and alleviated atrophy and vacuolation of seminiferous tubules. Simultaneously, C3G and PCA enhanced testicular heat stress tolerance through reducing superfluous eIF2α phosphorylation and stress granule formation. C3G and PCA effectively improved the testicular antioxidant system and regulated the IRE1α-XBP1 pathway, contributing to mitigatory spermatogenesis dysfunction and testicular damage. This finding revealed that anthocyanins were the novel compounds for alleviating testicular damage, and provided a reliable theoretical basis for improving male fertility disturbed by heat stress.
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Affiliation(s)
- Dongbao Cai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Xusheng Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Qingjie Xu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Haiwei Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Ruijing Liu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Jiali Chen
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Xinwei Jiang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
| | - Jianxia Sun
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Caiyong Lai
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, PR China
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, 510632, PR China.
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Zolfaghari S, Ayen E, Khaki A. The effect of different concentrations of taxifolin on the quality of frozen and thawed semen of Simmental cattle. IRANIAN JOURNAL OF VETERINARY RESEARCH 2023; 24:235-241. [PMID: 38269011 PMCID: PMC10804431 DOI: 10.22099/ijvr.2023.47455.6849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 01/26/2024]
Abstract
Background Artificial insemination (AI) is one of the most important reproductive technologies used to modify animals genetically. Using this method, the genetic composition of the herd can be improved and selected by choosing bulls with excellent genetic characteristics. Taxifolin (TXF), a plant flavonoid, has shown an antioxidative effect. Aims The current study aimed to evaluate the impact of TXF on the quality of frozen-thawed semen in Fleckvieh (Simmental) dual-purpose bulls. Methods Freezable semen specimens were obtained by an artificial vagina. Ejaculates were equally divided into six parts for six experimental groups, including without adding TXF to diluent (C), adding 25 (T25), 50 (T50), 100 (T100), 200 (T200), and 400 (T400) μM TXF. Sperms were frozen in a one-step dilution method. Semen factors, including motility, viability, sperm membrane integrity, DNA damage, and oxidant and antioxidant enzyme activities, were examined after thawing. Results Our findings revealed that all semen quality parameters, antioxidant enzyme activities, and free radical levels were superior in TXF-treated groups compared to the control group, and the differences were noticeably higher in the T100 group than the other groups. Conclusion Adding 100 μM TXF to diluent could improve the quality of bull frozen semen.
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Affiliation(s)
- S. Zolfaghari
- Ph.D. Student in Theriogenology, Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - E. Ayen
- Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - A. Khaki
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
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16
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Xiao L, Wang Q, Ni H, Xu T, Zeng Q, Yu X, Wu H, Guo P, Zhang Q, Zhang X. Effect of ambient temperature variability on sperm quality: A retrospective population-based cohort study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158245. [PMID: 36007649 DOI: 10.1016/j.scitotenv.2022.158245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/26/2022] [Accepted: 08/19/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUNDS Abnormal sperm quality in men is one of the common causes of infertility. Both ambient temperature and extreme heat exposure have been shown to be associated with sperm quality, but there is no epidemiological evidence for the effect of ambient temperature variability. Our aim was to investigate the association between ambient temperature variability exposure and a decline in sperm quality at different stages of sperm development. METHODS A total of 4912 semen samples collected from the Guangdong Human Sperm Bank between 1 January 2019 and 31 December 2019 were analyzed. We selected three exposure periods: the full-stage (0-90 lag days), early-stage (34-77 lag days) and late-stage (0-37 lag days) of sperm development, and then calculated the standard deviation of daily temperature (TVSD), the maximum day-to-day temperature difference (TVDmax) and the mean day-to-day temperature difference (TVDmean) for the three exposure periods. A linear mixed model was used to explore the exposure response relationship between temperature variability exposure and sperm quality indicators (including sperm concentration, sperm count and sperm motility). RESULTS There was a significant negative association of decreased sperm count with the exposure to temperature variability during 0-90 days prior to sperm collection. (TVDmax: -0.041; -0.063, -0.019; TVDmean: -0.237; -0.386, -0.088; TVSD: -0.103; -0.196, -0.011). We observed a significant association between the decline in sperm concentration, sperm count and per 1 °C increase in TVDmean during early spermatogenesis. No significant association of temperature variability with sperm motility was found. CONCLUSIONS The results indicate that exposure to temperature variability during the entire period of sperm development is significantly associated with a decline in sperm counts. We found that mean day-to-day temperature differences had a detrimental effect on sperm counts in the early-stage. Our findings provide a scientific basis for public health policy and further mechanistic studies.
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Affiliation(s)
- Lina Xiao
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Qiling Wang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, China; Department of Andrology, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), China
| | - Haobo Ni
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Ting Xu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Qinghui Zeng
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Xiaolin Yu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Haisheng Wu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Pi Guo
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou 515041, China
| | - Qingying Zhang
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Xinzong Zhang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, China
- Department of Andrology, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), China
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17
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Long-Term Follow-Up after Testicular Torsion: Prospective Evaluation of Endocrine and Exocrine Testicular Function, Fertility, Oxidative Stress and Erectile Function. J Clin Med 2022; 11:jcm11216507. [PMID: 36362741 PMCID: PMC9659157 DOI: 10.3390/jcm11216507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Background: This study investigates endocrine and exocrine testicular function, oxidative stress (OS) in semen, and erectile function in patients who underwent surgery for suspected testicular torsion (TT). Methods: We evaluated 49 patients over a mean follow-up of 101 months: n = 25 patients treated with surgical exploration, n = 20 patients treated with detorsion, and n = 4 treated with orchiectomy. We performed semen analysis including Male infertility Oxidative System (MyOxSIS) analysis, physical examination, and evaluation of endocrine and erectile function. Results: OS, erectile function and spermiogram categories did not differ significantly between the groups. The interval from the onset of symptoms to surgery differed significantly between groups (p < 0.001). Preservation of the testes was associated with a higher round cell count (p = 0.002) and follicle stimulating hormone (FSH, p = 0.003). OS showed a significant positive correlation with the spermiogram category (0.337; p = 0.022). A negative correlation was observed between OS and age (p = 0.033), sperm concentration (p < 0.001) and total sperm count (p = 0.006). Conclusions: Endocrine, exocrine and erectile function are not significantly affected by TT in the long term. Orchiectomy results in elevated FSH and a lower round cell count compared to preservation of the testis.
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McKinnon CJ, Joglekar DJ, Hatch EE, Rothman KJ, Wesselink AK, Willis MD, Wang TR, Mikkelsen EM, Eisenberg ML, Wise LA. Male personal heat exposures and fecundability: A preconception cohort study. Andrology 2022; 10:1511-1521. [PMID: 35924639 PMCID: PMC9588744 DOI: 10.1111/andr.13242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/30/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Several studies indicate adverse effects of selected heat exposures on semen quality, but few studies have directly evaluated fertility as an endpoint. OBJECTIVE We evaluated prospectively the association between male heat exposures and fecundability, the per-cycle probability of conception. MATERIALS AND METHODS We analyzed data from 3041 couples residing in the United States or Canada who enrolled in a prospective preconception cohort study (2013-2021). At enrollment, males reported on several heat-related exposures, such as use of saunas, hot baths, seat heaters, and tight-fitting underwear. Pregnancy status was updated on female follow-up questionnaires every 8 weeks until conception or a censoring event (initiation of fertility treatment, cessation of pregnancy attempts, withdrawal, loss to follow-up, or 12 cycles), whichever came first. We used proportional probabilities regression models to estimate fecundability ratios (FR) and 95% confidence intervals (CIs) for the association between heat exposures and fecundability, mutually adjusting for heat exposures and other potential confounders. RESULTS We observed small inverse associations for hot bath/tub use (≥3 vs. 0 times/month: FR = 0.87, 95% CI: 0.70-1.07) and fever in the 3 months before baseline (FR = 0.94, 95% CI: 0.79-1.12; one cycle of follow-up: FR = 0.84, 95% CI: 0.64-1.11). Little association was found for sauna use, hours of laptop use on one's lap, seat heater use, time spent sitting, and use of tight-fitting underwear. Based on a cumulative heat metric, FRs for 1, 2, 3, and ≥4 versus 0 heat exposures were 0.99 (95% CI: 0.87-1.12), 1.03 (95% CI: 0.89-1.19), 0.94 (95% CI: 0.74-1.19), and 0.77 (95% CI: 0.50-1.17), respectively. Associations were stronger among men aged ≥30 years (≥4 vs. 0 heat exposures: FR = 0.60, 95% CI: 0.34-1.04). CONCLUSION Male use of hot tubs/baths and fever showed weak inverse associations with fecundability. Cumulative exposure to multiple heat sources was associated with a moderate reduction in fecundability, particularly among males aged ≥30 years.
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Affiliation(s)
- Craig J. McKinnon
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Dhruv J. Joglekar
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Elizabeth E. Hatch
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Kenneth J. Rothman
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
- RTI International, 3040 East Cornwallis Road, P.O. Box 12194 Research Triangle Park, North Carolina, 27709
| | - Amelia K. Wesselink
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Mary D. Willis
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Tanran R. Wang
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
| | - Ellen M. Mikkelsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Olof Palmes Allé 43-45 8200 Aarhus N, Denmark
| | - Michael L. Eisenberg
- Department of Urology and Obstetrics & Gynecology, Stanford University School of Medicine, 291 Campus Drive, Stanford, California
| | - Lauren A. Wise
- Department of Epidemiology, Boston University School of Public Health, 715 Albany Street, Boston, Massachusetts 02118
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19
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Schuppe HC, Köhn FM. [Impact of lifestyle and environmental factors on male reproductive health]. UROLOGIE (HEIDELBERG, GERMANY) 2022; 61:1217-1228. [PMID: 36229540 DOI: 10.1007/s00120-022-01951-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
The identification of potential environmental hazards is of clinical relevance for the diagnosis of male infertility. Knowledge about these factors will improve prevention of fertility disorders. Apart from drugs or factors related to lifestyle such as alcohol and tobacco smoke, various environmental and occupational agents, both chemical and physical, may impair male reproduction. Reproductive toxicity may evolve at the hypothalamic-pituitary, testicular, or posttesticular level; endpoints comprise deterioration of spermatogenesis and sperm function as well as endocrine disorders and sexual dysfunction. However, due to the complex regulation of the male reproductive system, information regarding single exogenous factors and their mechanisms of action in humans is limited. This is also due to the fact that extrapolation of results obtained from experimental animal or in vitro studies remains difficult. Nevertheless, the assessment of relevant exposures to reproductive toxicants should be carefully evaluated during diagnostic procedures of andrological patients.
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Affiliation(s)
- Hans-Christian Schuppe
- Klinik und Poliklinik für Urologie, Kinderurologie und Andrologie, Sektion Konservative Andrologie, Universitätsklinikum Gießen und Marburg GmbH - Standort Gießen, Justus-Liebig-Universität Gießen, Gaffkystr. 14, 35385, Gießen, Deutschland.
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20
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Jeremy M, Gurusubramanian G, Kharwar RK, Roy VK. Evaluation of a single dose of intra-testicular insulin treatment in heat-stressed mice model. Andrologia 2022; 54:e14603. [PMID: 36156807 DOI: 10.1111/and.14603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/25/2022] [Accepted: 09/09/2022] [Indexed: 11/28/2022] Open
Abstract
Insulin plays important role in testicular functions such as germ cell proliferation and steroidogenesis, despite its conventional role as a hypoglycaemic agent. It is also well known that testicular activity is severely get affected by heat stress and heat stress induces testicular pathogenesis. The effect of insulin on heat-induced testicular impairment has not been investigated. Thus, it is hypothesized that insulin might modulate testicular activity in a heat-stressed model. Experimental mice were separated into 4 groups; the first group was the normal control (CN), and the second group was subjected to heat stress (HS) by submerging the lower body part in a thermostatically controlled water bath maintained at 43°C for 15 min. The third and fourth groups were treated with a single dose of intra-testicular insulin (0.6 IU/mice) before and after heat stress. Animal tissue samples were collected after 14 days of heat treatment. Insulin treatment did not improve the sperm parameters; however, both insulin pre and post-treatment improved the markers of spermatogenesis such as Johnsen score, germinal epithelium height and the number of stages VII/VIII. The histoarchitecture of testis also showed amelioration from heat-induced pathogenesis in the insulin-treated groups. Insulin treatment has also increased the proliferation of germ cells (increased PCNA and GCN), survival (Bcl2), and decreased apoptosis (active caspase-3). Furthermore, insulin treatment decreased MDA levels, without pronounced effects on the activities of antioxidant enzymes. Heat stress also decreased the circulating testosterone and oestrogen levels, and insulin treatment significantly increased oestrogen levels only. Although testosterone showed an increasing trend, it was insignificant. The expression of aromatase, AR, ER-α, and ER-β was down regulated by heat-stress and insulin treatment up regulated these markers. In conclusion, our results showed the amelioration of heat-induced testicular impairment by pre and post-intra-testicular insulin treatments. Insulin-associated improvements in the pre-and post-treatment groups suggested a preventive mechanism of insulin against heat stress in the testis.
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21
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Escada-Rebelo S, Cristo MI, Ramalho-Santos J, Amaral S. Mitochondria-Targeted Compounds to Assess and Improve Human Sperm Function. Antioxid Redox Signal 2022; 37:451-480. [PMID: 34847742 DOI: 10.1089/ars.2021.0238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Significance: Currently 10%-15% of couples in reproductive age face infertility issues. More importantly, male factor contributes to 50% of these cases (either alone or in combination with female causes). Among various reasons, impaired sperm function is the main cause for male infertility. Furthermore, mitochondrial dysfunction and oxidative stress due to increased reactive oxygen species (ROS) production, particularly of mitochondrial origin, are believed to be the main contributors. Recent Advances: Mitochondrial dysfunction, particularly due to increased ROS production, has often been linked to impaired sperm function/quality. For decades, different methods and approaches have been developed to assess mitochondrial features that might correlate with sperm functionality. This connection is now completely accepted, with mitochondrial functionality assessment used more commonly as a readout of sperm functionality. More recently, mitochondria-targeted compounds are on the frontline for both assessment and therapeutic approaches. Critical Issues: In this review, we summarize the current methods for assessing key mitochondrial parameters known to reflect sperm quality as well as therapeutic strategies using mitochondria-targeted antioxidants aiming to improve sperm function in various situations, particularly after sperm cryopreservation. Future Directions: Although more systematic research is needed, mitochondria-targeted compounds definitely represent a promising tool to assess as well as to protect and improve sperm function. Antioxid. Redox Signal. 37, 451-480.
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Affiliation(s)
- Sara Escada-Rebelo
- PhD Programme in Experimental Biology and Biomedicine, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,IIIUC - Institute for Interdisciplinary Research, Casa Costa Alemão, University of Coimbra, Coimbra, Portugal
| | - Maria Inês Cristo
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - João Ramalho-Santos
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Sandra Amaral
- Biology of Reproduction and Stem Cell Group, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,IIIUC - Institute for Interdisciplinary Research, Casa Costa Alemão, University of Coimbra, Coimbra, Portugal
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22
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Patel DP, Cheng PJ, Hanson HA, Smith KR, Aston KI, Pastuszak AW, Hotaling JM. Seasonal variation in semen quality is not associated with fecundity in the Utah Population Database. Andrologia 2022; 54:e14515. [PMID: 35768958 DOI: 10.1111/and.14515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/06/2022] [Accepted: 05/20/2022] [Indexed: 11/28/2022] Open
Abstract
We determine whether a suspected seasonal variability in semen quality affect subsequent live birth rates. This is a retrospective, cohort analysis of men who provided semen analyses as part of fertility workup through a large andrology lab between 1996 and 2013 and corresponding birth rates using the Utah Population Database (UPDB). Semen parameters were analysed including total motile count (TMC), total sperm count, sperm concentration and progressive motility. Corresponding live births reflect those born in the state of Utah and were derived from birth certificate data available in the UPDB. Descriptive statistics were reported along with linear regression analysis with mixed effected models to test for an interaction between seasonal variation in semen quality and birth rates, accounting for age at the time of the semen analysis and abstinence time. A total of 11,929 patients and 14,765 semen samples were included. Only 3597 men (39% of men) had one or more values outside the World Health Organization reference range for their semen parameters. Linear regression demonstrated a consistent U-shaped relationship between TMC, total sperm count, and sperm concentration and season, with spring and winter yielding the highest values with a decline in the summer and fall. 7319 of these males had recorded live births for a total of 13,502 live births during the study period after a median follow-up of 7.2 years (IQR: 3.9-11.0). We did not find a significant interaction between specific semen parameters for a specific season and subsequent live births. Semen quality was the highest in the spring and winter, however there was no interaction between seasonal variability in semen quality and subsequent births. This is one of the largest studies describing seasonal variation in semen quality in humans.
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Affiliation(s)
- Darshan P Patel
- Department of Urology, University of California San Diego Health, San Diego, California, USA
| | - Philip J Cheng
- IVI-Reproductive Medicine Associates of New Jersey, Basking Ridge, New Jersey, USA
| | - Heidi A Hanson
- Division of Urology, Department of Surgery, University of Utah Health, Salt Lake City, Utah, USA.,Computational Science and Engineering, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Ken R Smith
- Population Science, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA.,Department of Family and Consumer Studies, University of Utah, Salt Lake City, Utah, USA
| | - Kenneth I Aston
- Division of Urology, Department of Surgery, University of Utah Health, Salt Lake City, Utah, USA
| | - Alexander W Pastuszak
- Division of Urology, Department of Surgery, University of Utah Health, Salt Lake City, Utah, USA
| | - James M Hotaling
- Division of Urology, Department of Surgery, University of Utah Health, Salt Lake City, Utah, USA
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23
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Abdulla JM, Al-Okaily BN. Histomorphometric and Histopathological Alterations of Rat Testis Following Exposure to Hydrogen Peroxide: Protective Role of Resveratrol Supplement. THE IRAQI JOURNAL OF VETERINARY MEDICINE 2022. [DOI: 10.30539/ijvm.v46i1.1313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Resveratrol (RS) is widely used in medical fields as an antioxidant. Current research investigated the protective role of RS supplement on histomorphometric and histopathological alterations in testes were caused by hydrogen peroxide (H2O2) of rats as an animal model. Thirty-two adult rats were utilized in this study, divided randomly into 4 equal groups as follows. The group C was given tap water only and served as control, the 2nd group (G1) was given 0.5% of H2O2 of tap water, the 3rd group (G2) was given tap water containing 0.5% of H2O2 and intubated RS supplement at 87 mg/kg BW, and 4th group intubated RS supplement 87 mg/kg BW. after 56 days of treatment, rats were euthanized, dissected then, specimens of testes tissue were collected for histomorphometric and histopathological evaluation. Our results showed that administration of H2O2 caused a significant histomorphometric with histopathological changes in the form of a thickness of fibrous tunica albuginea, disarrangement of germ cells, necrosis of spermatogonia, edema, and loss of sperms as compared to other groups. Meanwhile, these histological alterations were partially attenuated in the G2 group that intubated resveratrol. Thus, the current study concluded that resveratrol may have therapeutic value in the treatment of induced testicular injury by H2O2 due to its antioxidant activity and attenuation of harmful effects of oxidative stress through a mechanism that should be elucidated in future studies.
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24
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Abdelnour SA, Swelum AA, Sindi RA, Barkat RA, Khalifa NE, Amin AA, El-Raghi AA, Tufarelli V, Losacco C, Abd El-Hack ME. Responses of sperm mitochondria functionality in animals to thermal stress: The mitigating effects of dietary natural antioxidants. Reprod Domest Anim 2022; 57:1101-1112. [PMID: 35754099 DOI: 10.1111/rda.14193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/27/2022]
Abstract
The reproductive consequences of global warming representing heat stress (HS) have been widely received more attention in the last decades. HS induced significant influence on the male reproductive cell, especially sperm functionally. Reduction in the sperm function induced by HS leads to failure of fertility potential. The main effects of HS on sperm are reducing sperm motility, increased abnormalities and changes in the fluidity of the membrane as well as cell morphology. Moreover, the destruction of mitochondrial function could be the result of adverse influences of HS. The protein contents and enzymes of mitochondria were lowered after the exposure of sperm to HS. Some natural antioxidants were used for improving sperm mitochondrial function under HS conditions. In this review, it was highlighted the potential influences of HS on sperm function through reduction in ATP Synthesis yield, mitochondrial activity, mitochondrial protein contents and mitochondrial enzymes, which involves the interference of mitochondrial remodelling in sperm of animals.
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Affiliation(s)
- Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ayman A Swelum
- Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt
| | - Ramya A Sindi
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Rasha A Barkat
- Department of Physiology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Norhan E Khalifa
- Department of Physiology, Faculty of Veterinary Medicine, Fuka, Matrouh University, Matrouh, Egypt
| | - Ahmed A Amin
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Ali Ali El-Raghi
- Department of Animal Production, Faculty of Agriculture, Damietta University, Damietta, Egypt
| | - Vincenzo Tufarelli
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari 'Aldo Moro', Valenzano, Italy
| | - Caterina Losacco
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari 'Aldo Moro', Valenzano, Italy
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25
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Hoang-Thi AP, Dang-Thi AT, Phan-Van S, Nguyen-Ba T, Truong-Thi PL, Le-Minh T, Nguyen-Vu QH, Nguyen-Thanh T. The Impact of High Ambient Temperature on Human Sperm Parameters: A Meta-Analysis. IRANIAN JOURNAL OF PUBLIC HEALTH 2022; 51:710-723. [PMID: 35936544 PMCID: PMC9288403 DOI: 10.18502/ijph.v51i4.9232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 10/04/2021] [Indexed: 12/15/2022]
Abstract
Background Global warming, lifestyle, or working in a high temperature environment leads to have increased health risk factors. This meta-analysis was conducted to determine the impact of high ambient temperature on male reproductive function. Methods Scientific articles were screened in the database including MEDLINE, EMBASE, National center for biotechnology information (NCBI) or Web of Science with relating keywords. Impact data of high ambient temperature on semen parameters were extracted and analyzed by STATA software according to the Random Effects Model. The high ambient temperature exposure group and Non-exposure group were compared using the standard mean difference (SMD). Publications were evaluated for publication bias by Egger test. Results Nine articles were finally selected from databases examining the effect of high ambient temperature on male reproductive health of 356 men from Iran, Italy, Thailand, China, Egypt. High ambient temperature showed a significant decrease in the seminal parameters, semen volume during each ejaculation (SMD = -0.74; 95% CI -1.11, -0.36), sperm concentration (SMD = -1.07; 95% CI -1.42, -0.72), total sperm count (SMD = -1.52; 95% CI -2.96, -0.08), sperm motility (SMD = -1.93; 95% CI -2.83, -1.04), sperm progressive motility (SMD = -1.65; 95% CI -2.39, -0.91) and normal morphology (SMD = -2.41; 95% CI -3.30, -1.52). Conclusion High ambient temperature negatively affects sperm quality, including decreased semen volume, sperm count, sperm concentration, motility and normal morphology. This might lead to protective strategies to avoid the adverse effects of high ambient temperature on male fertility.
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Affiliation(s)
- Ai-Phuong Hoang-Thi
- Faculty of Basic Science, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Anh-Thu Dang-Thi
- Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Sang Phan-Van
- Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Thong Nguyen-Ba
- Department of Anatomy, Biochemistry, and Physiology, John A. Burns School of Medicine, The University of Hawaii at Manoa, Honolulu, Hawaii, HI 96813, USA
| | - Phuong-Lan Truong-Thi
- Faculty of Basic Science, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Tam Le-Minh
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Quoc-Huy Nguyen-Vu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
| | - Tung Nguyen-Thanh
- Faculty of Basic Science, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam.,Institute of Biomedicine, University of Medicine and Pharmacy, Hue University, Hue 49000, Vietnam
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26
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Ijab R, Ayen E, Khaki A, Soleimanzadeh A. Evaluation of dietary betaine on post-thawed semen quality in mature bulls during summer heat stress. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2022; 13:61-70. [PMID: 35601790 PMCID: PMC9094597 DOI: 10.30466/vrf.2020.124845.2927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 11/28/2020] [Indexed: 11/01/2022]
Abstract
Heat stress (HS) has caused relative hypoxia, oxidative stress and high level of homocysteine, which contributes significantly to fertility failures in bulls. The aim of present study was to evaluate the role of dietary betaine (BET) in improving dual purpose Simmental (Fleckvieh) post-thawed semen quality especially during the hottest summer days. A total number of 16 mature bulls were randomly assigned to three equal groups including: 1) Control condition (without betaine), 2) BET1: 57.00 mg of betaine kg-1 per day and 3) BET2: 114 mg of betaine kg-1 per day, through daily intakes for 90 days in summer. Plasma levels of homocysteine, seminal plasma antioxidants levels and sperm parameters such as DNA fragmentation, chromatin integrity, motility, viability, morphology and membrane integrity were evaluated. Under maximal HS, serum homocysteine concentrations were reached 16.67 ± 0.09 µmol L-1. Dietary betaine supplementation influenced DNA fragmentation of sperm and was higher in the control group compared to BET2 group. There were significant decreases in seminal plasma superoxide dismutase (SOD), glutathione peroxidase (GPx) activity and sperm viability and motility in bulls treated with betaine. The activity of GPx and SOD in the control group was increased up to 0.08 ± 0.00 U mg-1 protein and 0.52 ± 0.01 U mg-1 protein in seminal plasma. There were no significant differences between groups in the percentage of swollen spermatozoa, membrane integrity, sperm morphology, abnormal head morphology and percentage of spermatozoa stained with aniline blue. In conclusion, BET supplements improved semen parameters in sperm motility, sperm viability and influenced DNA fragmentation during HS with reduction in serum homocysteine concentrations.
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Affiliation(s)
- Reza Ijab
- Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | - Esmail Ayen
- Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran; ,Correspondence Esmail Ayen. DVM, PhD, Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran. E-mail:
| | - Amir Khaki
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran.
| | - Ali Soleimanzadeh
- Department of Theriogenology and Poultry Disease, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
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27
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Abdelhamid MHM, Fellah AA, Elmarghani A, Al Msellati IA. An Assessment of Men Semen Alterations in SARS-CoV-2: Is Fever the Principal Concern? Reprod Sci 2022; 30:72-80. [PMID: 35194760 PMCID: PMC8863294 DOI: 10.1007/s43032-022-00889-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/13/2022] [Indexed: 01/06/2023]
Abstract
The SARS-CoV-2 virus (COVID-19) was identified as a pandemic in March 2020 by the World Health Organization. The virus spreads primarily through saliva droplets or nasal discharges, in addition to coughing or sneezing from an infected person. The most common symptom at the onset of illness is fever, which may appear within 2-14 days after exposure. The high fever (above 38 °C) can persist from one to 4 days. The febrile illness usually has a variable negative impact on sperm characteristics such as sperm output, motility, morphology, and DNA fragmentation. These defects proliferated due to an increase in testicular temperature, and disturbance in the thermoregulatory systems that are responsible for the testicular heat loss. Coronavirus studies suggest that fever from SARS-CoV-2 virus infection induces a reversible negative effect on the sperm parameters until one cycle (74 days) of spermatogenesis. We believe that SARS-CoV-2 can have long-term adverse effects on testicles via immune or inflammatory reactions after the patient has fully recovered. This evidence could be added to the list of the long-term post-COVID-19 syndromes. Long-term follow-up and evaluation of the sperm parameters are necessary for all recovered male patients, especially the young ones.
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Affiliation(s)
- Mohamed Hadi Mohamed Abdelhamid
- Department of Genetic Engineering, Cell Biology and Tissue Culture, Biotechnology Research Center (BTRC), Tripoli, Libya.
- National Center of Disease Control (NCDC), Tripoli, Libya.
| | - Abdulmunam A Fellah
- Department of Genetic Engineering, Cell Biology and Tissue Culture, Biotechnology Research Center (BTRC), Tripoli, Libya
| | - Ahmed Elmarghani
- Department of Genetic Engineering, Cell Biology and Tissue Culture, Biotechnology Research Center (BTRC), Tripoli, Libya
- National Center of Disease Control (NCDC), Tripoli, Libya
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28
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Jeremy M, Kharwar RK, Roy VK. Synthetic leptin c-fragment peptide minimises heat-induced impairment of spermatogenesis in mice via Stat3 signalling. Theriogenology 2022; 178:40-49. [PMID: 34763177 DOI: 10.1016/j.theriogenology.2021.10.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 09/04/2021] [Accepted: 10/31/2021] [Indexed: 12/22/2022]
Abstract
Mammalian spermatogenesis is a temperature-sensitive process, and an increase in testicular temperature impairs spermatogenesis. Leptin modulates testicular activity, but the effect of leptin or its synthetic analogue on heat-induced testicular impairment is unclear. We investigated the effects of synthetic leptin peptide (116-130 amides) on testicular activity in heat-stressed mice model. 15 adult mice (25.54 ± 1.43 g) were selected for the study. Ten mice were subjected to a single heat stress treatment (HS) at 43 °C for 15 min by submerging the lower half of the body in a thermostatic water bath. After heat treatment, mice were divided into two groups, the heat-stressed HS group (n = 5) and the second group as HSL, treated with leptin peptide (116-130 amide) for 14 days. The HS group showed a significant (p < 0.05) decline in the GSI (0.25 ± 0.018), Johnsenscore (4.5 ±.19), seminiferous tubule diameter (160.75 ± 10.18 μm), germinal epithelium height, (GEH) (37.5 ± 1.59 μm) compared to the CN (GSI-0.37 ± 0.015; Johnsen score-7.9 ± 0.20; GEH- 73.25 ± 1.29 μm; tubule diameter-230.25 ± 1.39 μm) and the HSL groups (GSI-0.38 ± 0.014; Johnsen' score-8.0 ± 0.32; GEH- 37.5 ± 1.59 μm; tubule diameter-160.75 ± 10.18 μm) groups. Heat treatment significantly (p < 0.05) increased the intra-testicular levels of leptin (HS-20.11 ± 2.1 pg/mg protein; CN-10.50 ± 0.17 pg/mg protein; HSL-12.99 ± 0.52 pg/mg protein) with a reduced level of pStat3, suggesting leptin resistance during testicular hyperthermia. Furthermore, heat treatment was associated with significantly (p < 0.05) decreased germ cell proliferation and reduced circulating testosterone levels (HS-2.69 ± 2.01 ng/mL; CN-7.69 ± 0.32 ng/mL; HSL-5.36 ± 0.73 ng/mL). However, the circulating androstenedione levels showed a significant (p < 0.05) increase in the HS group (0.75 ± 0.03 ng/mL) compared to the CN (0.51 ± 0.02 ng/mL) and HSL (0.57 ± 0.07 ng/mL) groups. Immunolocalisation of 3β-HSD showed moderate to faint staining in the Leydig cells in the HS group compared to the CN and HSL groups. Treatment with leptin peptide resulted in decrease in the intra-testicular leptin levels with increased phosphorylation of Stat3, suggesting improved leptin resistance, which was positively associated with increased germ cell proliferation, elevated testosterone levels, and improved testicular histoarchitecture. Testicular hyperthermia may cause leptin resistance and impaired leptin signalling, decreased testosterone biosynthesis and suppressed spermatogenesis, which could be a manifestation of leptin resistance. Treatment with leptin peptide improves leptin signalling and testicular activity in heat-stressed mice, but the underlying mechanism is still unclear.
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Affiliation(s)
- Malsawmhriatzuala Jeremy
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India; Department of Zoology, Kutir Post Graduate College, Chakkey, Jaunpur, 222 146, India
| | - Rajesh Kumar Kharwar
- Department of Zoology, Kutir Post Graduate College, Chakkey, Jaunpur, 222 146, India.
| | - Vikas Kumar Roy
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
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Sperm quality and absence of SARS-CoV-2 RNA in semen after COVID-19 infection: a prospective, observational study and validation of the SpermCOVID test. Fertil Steril 2021; 117:287-296. [PMID: 34937665 PMCID: PMC8685303 DOI: 10.1016/j.fertnstert.2021.10.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 12/31/2022]
Abstract
Objective To study the contagiousness of sperm and its influence on fertility after recovery from COVID-19 infection. Design Prospective cohort study. Setting University medical center. Patient(s) One hundred twenty Belgian men who had recovered from proven COVID-19 infection. Intervention(s) No intervention was performed. Main outcome measure(s) Semen quality was assessed using the World Health Organisation criteria. DNA damage to sperm cells was assessed by quantifying the DNA fragmentation index and the high density stainability. Finally antibodies against SARS-CoV2 spike-1 antigen, nuclear and S1-receptor binding domain were measured by Elisa and chemilumenscent microparticle immunoassays, respectively. Result(s) SARS-CoV-2 RNA was not detected in semen during the period shortly after infection nor at a later time. Mean progressive motility was reduced in 60% of men tested shortly (<1 month) after COVID-19 infection, 37% of men tested 1 to 2 months after COVID-19 infection, and 28% of men tested >2 months after COVID-19 infection. Mean sperm count was reduced in 37% of men tested shortly (<1 month) after COVID-19 infection, 29% of men tested 1 to 2 months after COVID-19 infection, and 6% of men tested >2 months after COVID-19 infection. The severity of COVID-19 infection and the presence of fever were not correlated with sperm characteristics, but there were strong correlations between sperm abnormalities and the titers of SARS-CoV-2 IgG antibody against spike 1 and the receptor- binding domain of spike 1, but not against nucleotide, in serum. High levels of antisperm antibodies developed in three men (2.5%). Conclusion(s) Semen is not infectious with SARS-CoV-2 at 1 week or more after COVID-19 infection (mean, 53 days). However, couples with a desire for pregnancy should be warned that sperm quality after COVID-19 infection can be suboptimal. The estimated recovery time is 3 months, but further follow-up studies are under way to confirm this and to determine if permanent damage occurred in a minority of men.
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Ghareeb DA, Abd-Elgwad A, El-Guindy N, Yacout G, Zaatout HH. Ulva lactuca methanolic extract improves oxidative stress-related male infertility induced in experimental animals. Arch Physiol Biochem 2021; 127:397-405. [PMID: 31364420 DOI: 10.1080/13813455.2019.1645698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 07/10/2019] [Accepted: 07/12/2019] [Indexed: 12/14/2022]
Abstract
AIM This study designated to investigate and compare the therapeutic effect of Ulva lactuca methanolic extract against oxidative stress (OS)-infertility induced by naturally occurring prooxidants (gossypol) and selenium- vitamins A, C, and E (selenium-ACE) drug. METHODS Male infertility was induced in rat by intraperitoneal injection of 5 mg/kg gossypol eight times then the treatment was carried out with 100 mg/kg ulva methanolic extract oral administration for one or two weeks, after this period OS, and male infertile markers were detected in blood and/or testes. RESULTS Gossypol stimulated male infertility by increasing testicular OS markers and decreasing semen quality, hyaluronidase enzyme activity, and blood testosterone level. The treatment with ulva methanolic extract improved gossypol related adverse effects. The treatment period for two weeks with extract was the most potent one. CONCLUSIONS Ulva methanolic extract could be considered as good antioxidant therapeutic candidate for OS linked male infertility.
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Affiliation(s)
- Doaa A Ghareeb
- Bioscreening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
- Pharmaceutical and Fermentation Industries Development Centre, City for Scientific Research and Technological Applications, Alexandria, Egypt
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Alshimaa Abd-Elgwad
- Bioscreening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Nihal El-Guindy
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Galila Yacout
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Hala H Zaatout
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Protective Effects of Fisetin in the Mice Induced by Long-Term Scrotal Hyperthermia. Reprod Sci 2021; 28:3123-3136. [PMID: 34231174 DOI: 10.1007/s43032-021-00615-1] [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: 11/24/2020] [Accepted: 05/10/2021] [Indexed: 10/20/2022]
Abstract
Exposure to heat in the male reproductive system can lead to transient periods of partial or complete infertility. The current study aimed to examine the beneficial effects of Fisetin against spermatogenic disorders in mice affected by long-term scrotal hyperthermia. For this purpose, hyperthermia was induced daily by exposure to the temperature of 43 °C for 20 min for 5 weeks. Except for the Healthy group, six other groups were exposed to heat stress: two treated groups including Preventive and Curative which received oral administration of fisetin (10 mg/kg/day) starting immediately before heat exposure and 15 consecutive days after the end of the heat exposure, respectively. And for each treated group, two groups including Positive Control (Pre/Cur+PC group) and vehicle (Pre/Cur+DMSO group) were considered. Our results showed that the testicular volume; the density of spermatogonia, primary spermatocyte, round spermatid, and Sertoli and Leydig cells; and sperm parameters, as well biochemical properties of the testis tissue, were remarkably higher in both Preventive and Curative groups compared to the other hyperthermia-induced groups and were highest in Preventive ones. Unlike the c-kit gene transcript which was significantly increased in the Fisetin treatment groups (specially the Preventive group), the expression of HSP72 and NF-kβ genes, Caspase3 protein, and DFI in sperm cells were significantly more decreased in Preventive and Curative groups compared to other hyperthermia-induced groups and were lowest in Preventive ones. Overall, Fisetin exerts preventive and curative effects against spermatogenic disorders induced by long-term scrotal hyperthermia.
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32
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Borges E, Setti AS, Iaconelli A, Braga DPDAF. Current status of the COVID-19 and male reproduction: A review of the literature. Andrology 2021; 9:1066-1075. [PMID: 33998143 PMCID: PMC8222884 DOI: 10.1111/andr.13037] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 04/09/2021] [Accepted: 05/11/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19), which causes serious respiratory illnesses such as pneumonia and lung failure, was first reported in mid-December 2019 in China and has spread around the world. In addition to causing serious respiratory illnesses such as pneumonia and lung failure, there have been conflicting reports about the presence of SARS-CoV-2 in the semen of patients who were previously diagnosed with COVID-19 and possible implications for the male reproductive tract. OBJECTIVE The goal for the present study was to review the current status of the literature concerning COVID-19 and male reproduction. MATERIAL AND METHODS An electronic literature search was done by using PubMed and Google Scholar databases. Relevant papers, concerning SARS-COV-2 and COVID-19 and male reproduction, published between January 2020 and December 2020 were selected, analyzed and eventually included in the present literature review. RESULTS SARS-CoV-2 may infect any cell type expressing angiotensin-converting enzyme 2 (ACE2), including reproductive cells. Besides the presence of the SARS-CoV-2 receptor, the expression of host proteases, such as transmembrane serine protease 2 (TMPRSS2), is needed to cleave the viral S protein, allowing permanent fusion of the viral and host cell membranes. Here, we aimed to review the current status of the literature concerning COVID-19 and male reproduction. The lack of co-expression of ACE2 and TMPRSS2 in the testis suggests that sperm cells may not be at increased risk of viral entry and spread. However, the presence of orchitis in COVID-19-confirmed patients and compromised sex-related hormonal balance among these patients intrigues reproductive medicine. DISCUSSION SARS-CoV-2 may use alternate receptors to enter certain cell types, or the expression of ACE2 and TMPRSS2 may not be detected in healthy individuals. CONCLUSION COVID-19 challenges all medical areas, including reproductive medicine. It is not yet clear what effects, if any, the COVID-19 pandemic will have on male reproduction. Further research is needed to understand the long-term impact of SARS-CoV-2 on male reproductive function.
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Affiliation(s)
- Edson Borges
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | - Amanda Souza Setti
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | - Assumpto Iaconelli
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
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33
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Alahmar AT, Calogero AE, Singh R, Cannarella R, Sengupta P, Dutta S. Coenzyme Q10, oxidative stress, and male infertility: A review. Clin Exp Reprod Med 2021; 48:97-104. [PMID: 34078005 PMCID: PMC8176150 DOI: 10.5653/cerm.2020.04175] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/27/2021] [Indexed: 12/11/2022] Open
Abstract
Male infertility has a complex etiopathology, which mostly remains elusive. Although research has claimed that oxidative stress (OS) is the most likely underlying mechanism of idiopathic male infertility, the specific treatment of OS-mediated male infertility requires further investigation. Coenzyme Q10 (CoQ10), a vitamin-like substance, has been found in measurable levels in human semen. It exhibits essential metabolic and antioxidant functions, as well as playing a vital role in mitochondrial bioenergetics. Thus, CoQ10 may be a key player in the maintenance of biological redox balance. CoQ10 concentrations in seminal plasma directly correlate with semen parameters, especially sperm count and sperm motility. Seminal CoQ10 concentrations have been shown to be altered in various male infertility states, such as varicocele, asthenozoospermia, and medical or surgical regimens used to treat male infertility. These observations imply that CoQ10 plays an important physiological role in the maintenance and amelioration of semen quality. The present article thereby aimed to review the possible mechanisms through which CoQ10 plays a role in the regulation of male reproductive function, and to concisely discuss its efficacy as an ameliorative agent in restoring semen parameters in male infertility, as well as its impact on OS markers, sperm DNA fragmentation, pregnancy, and assisted reproductive technology outcomes.
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Affiliation(s)
- Ahmed T Alahmar
- Department of Medical Physiology, College of Medicine, University of Babylon, Iraq
| | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University Teaching Hospital Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
| | | | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University Teaching Hospital Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Malaysia
| | - Sulagna Dutta
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Malaysia
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34
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Ziaeipour S, Piryaei A, Aliaghaei A, Nazarian H, Naserzadeh P, Ebrahimi V, Abdi S, Shahi F, Ahmadi H, Fadaei Fathabadi F, Abdollahifar MA. Chronic scrotal hyperthermia induces azoospermia and severe damage to testicular tissue in mice. Acta Histochem 2021; 123:151712. [PMID: 33848926 DOI: 10.1016/j.acthis.2021.151712] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 02/09/2023]
Abstract
Scrotal hyperthermia leads to altered spermatogenesis due to heat-related oxidative stress. One of the main causes of infertility in men is oxidative stress, which refers to an imbalance in the levels of reactive oxygen species (ROS) and antioxidants. Therefore, this study aimed to evaluate the effects of chronic scrotal hyperthermia on testicular tissue structure, sperm parameters, and oxidative stress in adult mice. Thirty adult NMRI male mice were divided into three groups: Control (n = 10), Sham (n = 10), and Hyperthermia (n = 10). At the end of the study animals were sacrificed for evaluations of biochemical, cellular and histological analysis. The Hyperthermia group revealed a significant reduction in sperm count and weight of testis when compared to the control and sham groups. Also, succinate dehydrogenase (SDH) activity, ROS, ATP production, glutathione disulfide (GSH), tiols metabolism and stereological parameters in the hyperthermia group showed a significant reduction compared to the control and sham groups. Our results also revealed that scrotal hyperthermia significantly increases ROS production, mitochondrial membrane permeability (MMP), malondialdehyde (MDA), oxidized glutathione (GSSG) and apoptotic cells in testicular tissue in the hyperthermia groups in comparison with the control and sham groups. Overall, our result indicated that chronic scrotal hyperthermia causes complete spermatogenic arrest, probably mainly throughout the induction of oxidative stress.
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35
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Tanga BM, Qamar AY, Raza S, Bang S, Fang X, Yoon K, Cho J. Semen evaluation: methodological advancements in sperm quality-specific fertility assessment - A review. Anim Biosci 2021; 34:1253-1270. [PMID: 33902175 PMCID: PMC8255896 DOI: 10.5713/ab.21.0072] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/30/2021] [Indexed: 11/27/2022] Open
Abstract
Assessment of male fertility is based on the evaluation of sperm. Semen evaluation measures various sperm quality parameters as fertility indicators. However, semen evaluation has limitations, and it requires the advancement and application of strict quality control methods to interpret the results. This article reviews the recent advances in evaluating various sperm-specific quality characteristics and methodologies, with the help of different assays to assess sperm-fertility status. Sperm evaluation methods that include conventional microscopic methods, computer-assisted sperm analyzers (CASA), and flow cytometric analysis, provide precise information related to sperm morphology and function. Moreover, profiling fertility-related biomarkers in sperm or seminal plasma can be helpful in predicting fertility. Identification of different sperm proteins and diagnosis of DNA damage has positively contributed to the existing pool of knowledge about sperm physiology and molecular anomalies associated with different infertility issues in males. Advances in methods and sperm-specific evaluation has subsequently resulted in a better understanding of sperm biology that has improved the diagnosis and clinical management of male factor infertility. Accurate sperm evaluation is of paramount importance in the application of artificial insemination and assisted reproductive technology. However, no single test can precisely determine fertility; the selection of an appropriate test or a set of tests and parameters is required to accurately determine the fertility of specific animal species. Therefore, a need to further calibrate the CASA and advance the gene expression tests is recommended for faster and field-level applications.
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Affiliation(s)
- Bereket Molla Tanga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea.,Faculty of Veterinary Medicine, Hawassa University, 05, Hawassa, Ethiopia
| | - Ahmad Yar Qamar
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Sanan Raza
- Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, Pakistan.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, PakistanDepartment of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin 09016, Turkey
| | - Seonggyu Bang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Xun Fang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Kiyoung Yoon
- Department of Companion Animal, Shingu College, Seongnam 13174, Korea
| | - Jongki Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
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36
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Zhao F, Whiting S, Lambourne S, Aitken RJ, Sun YP. Melatonin alleviates heat stress-induced oxidative stress and apoptosis in human spermatozoa. Free Radic Biol Med 2021; 164:410-416. [PMID: 33482333 DOI: 10.1016/j.freeradbiomed.2021.01.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023]
Abstract
Oxidative stress generates a large amount of reactive oxygen species (ROS) and affects sperm quality via damaging sperm DNA and compromising the intracellular homeostasis in human spermatozoa. In assisted reproductive technology (ART), it is substantial to prevent spermatozoa from ROS attack. The pineal hormone melatonin has the natural antioxidant capacity and can scavenge ROS. To the best of our knowledge, however, there are presently no studies investigating if melatonin can protect human spermatozoa from heat-induced oxidative damage. Herein, we induced oxidative stress in human spermatozoa with heat treatment, and determined that melatonin could protect human spermatozoa from heat-induced oxidative stress. We first confirmed that heat stress-induced oxidative stress damaged human spermatozoa by decreasing sperm motility and viability. Furthermore, the pretreatment of human spermatozoa by melatonin was able to alleviate such damage by suppressing sperm mitochondrial ROS generation, increasing mitochondrial membrane potential, reducing the formation of the lipid peroxidation product, 4-HNE, and reducing sperm DNA damage and apoptosis. Collectively, these findings suggest that melatonin is useful as a potential treatment option for male infertility caused by heat-induced oxidative stress.
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Affiliation(s)
- Feifei Zhao
- Center for Reproductive Medicine, Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Sara Whiting
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Sarah Lambourne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia.
| | - Ying-Pu Sun
- Center for Reproductive Medicine, Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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37
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Wang Y, Li N, Zeng Z, Tang L, Zhao S, Zhou F, Zhou L, Xia W, Zhu C, Rao M. Humanin regulates oxidative stress in the ovaries of polycystic ovary syndrome patients via the Keap1/Nrf2 pathway. Mol Hum Reprod 2021; 27:gaaa081. [PMID: 33337472 DOI: 10.1093/molehr/gaaa081] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 11/18/2020] [Indexed: 02/06/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrinological pathology among women of reproductive age, whereas the pathogenesis is still not fully understood. Systemic and ovarian oxidative stress (OS) imbalance is a pivotal feature of PCOS. Humanin, a mitochondria-derived peptide, has been reported to function as an antioxidant in cardiomyocytes, pancreatic beta cells and other cells, but how this function is regulated remains unclear. In this study, we investigated whether humanin expression differs in the granulosa cells (GCs) of PCOS patients versus controls, and whether humanin alleviates OS in PCOS ovaries. Sixteen PCOS patients and 28 age- and BMI-matched controls undergoing IVF were recruited, and their serum, follicular fluid and GCs were collected for humanin analysis. Dehydroepiandrosterone-induced rat PCOS models, and vitamin K3-induced OS COV434 cell lines were applied to investigate the mechanism. Humanin expression was significantly down-regulated in the ovaries of PCOS patients relative to those of non-PCOS patients. Exogenous humanin supplementation significantly attenuated body weight gain, ovarian morphological abnormalities, endocrinological disorders and ovarian and systemic OS in PCOS rat models. Our study further demonstrated that this attenuation effect was involved in the modulation of the Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor-erythroid 2-related factor 2 (Nrf2) signalling pathway. In summary, this study reported for the first time that decreased expression of humanin in the GCs was associated with oxidative imbalance in PCOS. Humanin alleviates OS in ovarian GCs of PCOS patients via modulation of the Keap1/Nrf2 signalling pathway.
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Affiliation(s)
- Yingying Wang
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nianyu Li
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhengyan Zeng
- Department of Neurology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Tang
- Department of Reproduction and Genetics, The First affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shuhua Zhao
- Department of Reproduction and Genetics, The First affiliated Hospital of Kunming Medical University, Kunming, China
| | - Fang Zhou
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liping Zhou
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changhong Zhu
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Rao
- Department of Reproduction and Genetics, The First affiliated Hospital of Kunming Medical University, Kunming, China
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Mahdivand N, Shalizar-Jalali A, Nejati V, Najafi G, Rahmani F. Adaptogenic potential of royal jelly in reproductive system of heat stress-exposed male rats. J Therm Biol 2021; 96:102827. [PMID: 33627267 DOI: 10.1016/j.jtherbio.2020.102827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/23/2020] [Accepted: 12/31/2020] [Indexed: 11/16/2022]
Abstract
Testicular heat stress (HS) can lead to testicular tissue destruction and spermatogenesis disturbances. Royal Jelly (RJ) has been introduced as a potent antioxidant. We investigated the effects of RJ on testicular tissue, oxidative stress and sperm apoptosis in HS-exposed rats. Compared to HS-exposed groups, RJ co-treatment could improve testosterone reduction and histopathological damages. The RJ co-administration decreased MDA level in testicular tissue, while TAC and CAT levels were remarkably increased compared to HS-exposed groups. Moreover, significant higher expression level of Bcl-2 and lower expression levels of P53 and Caspase-3 were seen following RJ co-administration compared to HS-exposed groups. Our data suggest that RJ can effectively ameliorate experimental HS-induced testiculopathies in rats through testicular antioxidant defense system restoration and germ cells apoptosis regulation.
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Affiliation(s)
- Noushin Mahdivand
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
| | - Ali Shalizar-Jalali
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Vahid Nejati
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
| | - Gholamreza Najafi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Fatemeh Rahmani
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
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Krzastek SC, Farhi J, Gray M, Smith RP. Impact of environmental toxin exposure on male fertility potential. Transl Androl Urol 2021; 9:2797-2813. [PMID: 33457251 PMCID: PMC7807371 DOI: 10.21037/tau-20-685] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Idiopathic infertility is the most common individual diagnosis in male infertility, representing nearly 44% of cases. Research studies dating over the last half-century consistently demonstrate a decline in male fertility that is incompletely explained by obesity, known genetic causes, or diet and lifestyle changes alone. Human exposures have changed dramatically over the same time course as this fertility decline. Synthetic chemicals surround us. Some are benevolent; however, many are known to cause disruption of the hypothalamic-pituitary-gonadal axis and impair spermatogenesis. More than 80,000 chemicals are registered with the United States National Toxicology Program and nearly 2,000 new chemicals are introduced each year. Many of these are known toxins, such as phthalates, polycyclic aromatic hydrocarbons, aromatic amines, and organophosphate esters, and have been banned or significantly restricted by other countries as they carry known carcinogenic effects and are reproductively toxic. In the United States, many of these chemicals are still permissible in exposure levels known to cause reproductive harm. This contrasts to other chemical regulatory legislature, such as the European Union’s REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations which are more comprehensive and restrictive. Quantification of these diverse exposures on an individual level has proven challenging, although forthcoming technologies may soon make this data available to consumers. Establishing causality and the proportion of idiopathic infertility attributable to environmental toxin exposures remains elusive, however, continued investigation, avoidance of exposure, and mitigation of risk is essential to our reproductive health. The aim of this review is to examine the literature linking changes in male fertility to some of the most common environmental exposures. Specifically, pesticides and herbicides such as dichlorodiphenyltrichloroethane (DDT), dibromochloropropane (DBCP), organophosphates and atrazine, endocrine disrupting compounds including plastic compounds phthalates and bisphenol A (BPA), heavy metals, natural gas/oil, non-ionizing radiation, air and noise pollution, lifestyle factors including diet, obesity, caffeine use, smoking, alcohol and drug use, as well as commonly prescribed medications will be discussed.
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Affiliation(s)
- Sarah C Krzastek
- Department of Urology, University of Virginia, Charlottesville, VA, USA.,Division of Urology, Virginia Commonwealth University, Richmond, VA, USA.,Division of Urology, Hunter Holmes McGuire VAMC, Richmond, VA, USA
| | - Jack Farhi
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Marisa Gray
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Ryan P Smith
- Department of Urology, University of Virginia, Charlottesville, VA, USA
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Takeshima T, Usui K, Mori K, Asai T, Yasuda K, Kuroda S, Yumura Y. Oxidative stress and male infertility. Reprod Med Biol 2021; 20:41-52. [PMID: 33488282 PMCID: PMC7812476 DOI: 10.1002/rmb2.12353] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 09/19/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Between 30% and 80% of patients with male infertility produce excessive reactive oxygen species (ROS) in their ejaculate even though the cause of male infertility is unexplained in approximately half of cases. The strong connection between oxidative stress (OS) and male infertility has led recent investigators to propose the term "Male Oxidative Stress Infertility (MOSI)" to describe OS-associated male infertility. METHODS We searched the PubMed database for original and review articles to survey the effects of OS on male infertility, and then verified the effects and treatments. MAIN FINDINGS Seminal plasma contains many antioxidants that protect sperm from ROS, because low amounts of ROS are required in the physiological fertilization process. The production of excessive ROS causes OS which can lower fertility through lipid peroxidation, sperm DNA damage, and apoptosis. Several assays are available for evaluating OS, including the MiOXSYS® analyzer to measure oxidation-reduction potential. Several measures should be considered for minimizing OS and improving clinical outcomes. CONCLUSION Accurately diagnosing patients with MOSI and identifying highly sensitive biomarkers through proteomics technology is vital for better clinical outcomes.
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Affiliation(s)
- Teppei Takeshima
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kimitsugu Usui
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kohei Mori
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Takuo Asai
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kengo Yasuda
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Shinnosuke Kuroda
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Yasushi Yumura
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
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Khosravi A, Hasani A, Rahimi K, Aliaghaei A, Pirani M, Azad N, Ramezani F, Tamimi A, Behnam P, Raoofi A, Fathabadi FF, Abdi S, Abdollahifar MA, Hejazi F. Ameliorating effects of curcumin-loaded superparamagnetic iron oxide nanoparticles (SPIONs) on the mouse testis exposed to the transient hyperthermia: A molecular and stereological study. Acta Histochem 2020; 122:151632. [PMID: 33128988 DOI: 10.1016/j.acthis.2020.151632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Testicular hyperthermia can have negative effects on male fertility. Despite reported therapeutic benefits of curcumin, several factors often limit its application such as low water solubility and instable structure. Curcumin-loaded superparamagnetic iron oxide nanoparticles (SPIONs) were designed to solve its limitation of use. In the present study, we evaluated the effect of curcumin-loaded SPIONs on transient testicular hyperthermia in mouse. MATERIALS AND METHOD A total of 18 adult male NMRI mice were divided into three groups (n = 6): I. Controls (Cont), II. Scrotal hyperthermia (Hyp), III. Scrotal hyperthermia + curcumin-loaded iron particles (240 μL) (Hyp + Cur). After seventy days, the animals were sacrificed and used for further molecular and stereological evaluations. RESULTS Sperm count, motility and viability significantly decreased in group hyp as compared to cont group. Furthermore, Sperm DNA fragmentation and cell apoptosis in testes increased remarkably in group hyp, compared with group cont. Stereological study showed a reduction in number of spermatogenic and Leydig cells, as well as reduced weight and volume of testes in hyp group. Degenerative appearance of testes exposed to hyperthermia was also observed. In addition, higher mRNA expression of inflammatory cytokines (IL1-α, IL6, and TNF-α) was detected in group hyp compared to cont group. However, curcumin-loaded SPIONs alleviated all of the pathologic changes in the Hyp + Cur group compared to the hyp group. CONCLUSION Here, we used nanoparticle form of curcumin in testicular hyperthermia model and showed its ameliorating effects on testes damages caused by heat stress, which can be an appropriate method to overcome the problems that limit curcumin application in cases with increased intra testicular temperature.
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Martinez G, Garcia C. Sexual selection and sperm diversity in primates. Mol Cell Endocrinol 2020; 518:110974. [PMID: 32926966 DOI: 10.1016/j.mce.2020.110974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 12/30/2022]
Abstract
Many aspects of primate sperm physiology and reproductive behavior have been influenced by sexual selection, especially in taxa exposed to sperm competition where females mate with multiple partners. Primate sperm diversity reflects therefore the evolutionary divergences of the different primate species and the impact of a combination of variables exerting selection pressures on sperm form, function, and competition. Thereby, mating systems, life cycle or ecological variables are some of the important factors driving sperm diversity and explaining variation in terms of sperm morphology, parameters or male sexual characters. Here, we address primate sperm diversity through a compilation of all data available in the literature concerning primate sperm parameters and relationships between them. We also review the factors that can influence primate sperm diversity (e.g. mating systems, trade-off between investments in precopulatory and postcopulatory sexual traits, male and female sexual behaviors, seasonality, social constraints, testosterone levels), and discuss also their relevance to our understanding of human reproduction.
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Affiliation(s)
- Guillaume Martinez
- Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, UM de Génétique Chromosomique, F-38000, Grenoble, France; Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000, Grenoble, France.
| | - Cécile Garcia
- UMR 7206 Eco-anthropologie, CNRS - MNHN - Université de Paris, Musée de l'Homme, 75016, Paris, France.
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Wesselink AK, Bresnick KA, Hatch EE, Rothman KJ, Mikkelsen EM, Wang TR, Huybrechts KF, Wise LA. Association Between Male Use of Pain Medication and Fecundability. Am J Epidemiol 2020; 189:1348-1359. [PMID: 32488260 DOI: 10.1093/aje/kwaa096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/19/2022] Open
Abstract
Administration of pain relievers has been associated with both lower and higher risks of adverse reproductive outcomes in animals. In the sole investigation of male pain-reliever use and human fertility carried out to date, Smarr et al. (Hum Reprod. 2016;31(9):2119-2127) found a 35% reduction in fecundability among males with urinary acetaminophen concentrations in the highest quartile (>73.5 ng/mL) versus the lowest (<5.4 ng/mL). We analyzed data from 1,956 males participating in Pregnancy Study Online, a preconception cohort study of North American couples enrolled between 2013 and 2019. Males and females completed baseline questionnaires on sociodemographic characteristics, lifestyle, medication use, and medical history; females completed bimonthly follow-up questionnaires for up to 12 months. We categorized pain medications by active ingredient (ibuprofen, acetaminophen, naproxen, aspirin) and cumulative monthly dose. We used proportional probabilities models to calculate fecundability ratios and 95% confidence intervals, adjusting for potential confounders. In the 4 weeks before baseline, 51.7% of males used pain medications. Adjusted fecundability ratios were 1.02 for ibuprofen (95% confidence interval (CI): 0.91, 1.13), 0.89 for acetaminophen (95% CI: 0.77, 1.03), 1.07 for naproxen (95% CI: 0.85, 1.35), and 1.05 for aspirin (95% CI: 0.81, 1.35), as compared with nonuse of each medication. In this study, male use of pain medications at low doses was not notably associated with fecundability.
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Beaulieu M, Touzalin F, Dool SE, Teeling EC, Puechmaille SJ. Timescale and colony-dependent relationships between environmental conditions and plasma oxidative markers in a long-lived bat species. CONSERVATION PHYSIOLOGY 2020; 8:coaa083. [PMID: 33173584 PMCID: PMC7605240 DOI: 10.1093/conphys/coaa083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 05/04/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
To increase the applicability and success of physiological approaches in conservation plans, conservation physiology should be based on ecologically relevant relationships between physiological markers and environmental variation that can only be obtained from wild populations. Given their integrative and multifaceted aspects, markers of oxidative status have recently been considered in conservation physiology, but still need to be validated across environmental conditions and locations. Here, we examined whether inter-annual variation in two oxidative markers, plasma antioxidant capacity and plasma hydroperoxides, followed inter-annual variation in temperature anomalies and associated vegetation changes in four colonies of long-lived greater mouse-eared bats (Myotis myotis) monitored over five consecutive years. We found that the plasma antioxidant capacity of bats decreased while plasma hydroperoxide concentrations increased with increasing temperature anomalies occurring in the two weeks before blood sampling. Moreover, the antioxidant defences of these bats reflected vegetation indices, which themselves reflected the thermal conditions experienced by bats in their foraging habitat. Variation in oxidative markers therefore appears to be due to variation in thermoregulatory costs and to indirect changes in foraging costs. Overall, these results validate the use of markers of oxidative status in conservation physiology to monitor thermal perturbations recently experienced by animals in their natural habitat. However, even though oxidative markers varied in the same direction in all four bat colonies across years, the amplitude of their response differed. If these different physiological responses reflect different performances (e.g. productivity, survival rate) between colonies, this implies that, if necessary, conservation measures may need to be applied at the local scale.
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Affiliation(s)
- Michaël Beaulieu
- Corresponding author: Zoological Institute & Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany. Tel. (49)3831 2650 303.
| | - Frédéric Touzalin
- School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland
| | - Serena E Dool
- Zoological Institute & Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany
- School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland
| | - Emma C Teeling
- School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sébastien J Puechmaille
- Zoological Institute & Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany
- School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland
- ISEM, University of Montpellier, CNRS, EPHE, IRD, Montpellier, France
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Fraczek M, Wojnar L, Kamieniczna M, Piasecka M, Gill K, Kups M, Chopyak V, Havrylyuk A, Nakonechnyy J, Nakonechnyy A, Wozniak T, Kurpisz M. Seminal Plasma Analysis of Oxidative Stress in Different Genitourinary Topographical Regions Involved in Reproductive Tract Disorders Associated with Genital Heat Stress. Int J Mol Sci 2020; 21:ijms21176427. [PMID: 32899311 PMCID: PMC7504043 DOI: 10.3390/ijms21176427] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022] Open
Abstract
The pathophysiological mechanisms responsible for male subfertility/infertility caused by or complicated by genital heat stress remains unclear in many respects. Because seminal plasma creates the environment for the proper functioning of spermatozoa, in this study, we verified the associations among standard spermiograms, seminal biochemical parameters (neutral alpha-glucosidase, fructose, and citric acid) and oxidative stress markers (total antioxidant capacity, catalase activity, superoxide dismutase activity, and malondialdehyde concentration) in distinct entities associated with male infertility with and without long-time exposure to local hyperthermia. We demonstrated that men exposed to prolonged environmental or clinically recognized local heat stress in adulthood may suffer from dysregulation of seminal antioxidant components, which can be directly associated with epididymal and prostate function. The comparative analysis of the studied parameters showed numerous correlations among all biochemical parameters (particularly neutral alpha-glucosidase) with low standard semen quality in almost all the investigated infertile groups. In light of the data obtained in this originally designed study, we conclude that more attention should be paid to the epididymis and accessory gland function in subfertile and infertile men exposed to genital heat stress, especially in the context of novel treatment algorithms (targeted therapies).
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Affiliation(s)
- Monika Fraczek
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland; (M.K.); (T.W.)
- Correspondence: (M.F.); (M.K.)
| | - Lukasz Wojnar
- Clinic of Urology and Oncological Urology, Poznan University of Medical Sciences, 61-285 Poznan, Poland;
| | - Marzena Kamieniczna
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland; (M.K.); (T.W.)
| | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland; (M.P.); (K.G.); (M.K.)
| | - Kamil Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland; (M.P.); (K.G.); (M.K.)
| | - Michal Kups
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland; (M.P.); (K.G.); (M.K.)
- Department and Clinic Urology and Oncological Urology, Regional Specialist Hospital in Szczecin, 71-455 Szczecin, Poland
- VitroLive Fertility Clinic in Szczecin, 70-483 Szczecin, Poland
| | - Valentina Chopyak
- Department of Clinical Immunology and Allergology, Danylo Halytskyy Lviv National Medical University, 79008 Lviv, Ukraine; (V.C.); (A.H.)
| | - Anna Havrylyuk
- Department of Clinical Immunology and Allergology, Danylo Halytskyy Lviv National Medical University, 79008 Lviv, Ukraine; (V.C.); (A.H.)
| | - Jozef Nakonechnyy
- Department of Urology, Danylo Halytskyy Lviv National Medical University, 79010 Lviv, Ukraine;
| | - Andrij Nakonechnyy
- Department of Paediatric Surgery, Danylo Halytskyy Lviv National Medical University, 79059 Lviv, Ukraine;
| | - Tomasz Wozniak
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland; (M.K.); (T.W.)
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland; (M.K.); (T.W.)
- Correspondence: (M.F.); (M.K.)
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Zhang W, Ou N, Liang Z, Hu R, Song Y, Yang Y, Liu X. Relationship between aryl hydrocarbon receptor and spermatogenic dysfunction in male patients with varicocele. Andrologia 2020; 52:e13792. [PMID: 32780435 DOI: 10.1111/and.13792] [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: 06/05/2020] [Revised: 07/03/2020] [Accepted: 07/12/2020] [Indexed: 11/28/2022] Open
Abstract
The main purpose of this project is to verify whether there is a difference in the expression of aryl hydrocarbon receptor (AhR) between varicocele (VC) and normal male semen, and determine whether there is a connection with the parameters of semen analysis. The risk factors of infertility in patients with VC were also studied. Semen samples were collected for semen analysis and Western blot. Logistic regression was used to investigate the risk factors associated with infertility in patients with VC. Men with VC had lower AhR expression compared to healthy men; correlation analysis results showed that: AhR expression in patients with VC group was significantly positively correlated with sperm concentration and sperm motility; significantly negatively correlated with the diameter of spermatic veins during Valsalva and the percentage of abnormal sperm morphology; the research results of related risk factors show that the risk of infertility of patients with grade III is 1.67 times that of patients with grades I and II. For each unit of abnormal sperm morphology, the risk of infertility increases 1.04 times. Sperm concentration, total sperm viability and each unit the expression of AhR protein decreases the risk of infertility by 3%, 9% and 11% respectively.
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Affiliation(s)
- Wei Zhang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Ningjing Ou
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhen Liang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Rui Hu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuxuan Song
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yongjiao Yang
- Department of Urology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaoqiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
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Wu YQ, Rao M, Hu SF, Ke DD, Zhu CH, Xia W. Effect of transient scrotal hyperthermia on human sperm: an iTRAQ-based proteomic analysis. Reprod Biol Endocrinol 2020; 18:83. [PMID: 32787870 PMCID: PMC7422586 DOI: 10.1186/s12958-020-00640-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Through this prospective study, we aimed to explore the change of molecular modification after the transient scrotal hyperthermia on human sperm. METHODS Ten healthy subjects selected with strict screening criteria underwent testicular warming in a 43 °C water bath for 30 min a day for 10 consecutive days. Semen samples were collected 2 weeks before the first heat treatment and 6 weeks after the first heat treatment. Proteins from the samples were labeled with isobaric tags for relative and absolute quantitation and analyzed by two-dimensional liquid chromatography-tandem mass spectrometry. RESULTS In contrast to the control, of the 3446 proteins identified, 61 proteins were deregulated: 28 were up-regulated and 33 were down-regulated. Approximately 95% of the differentially expressed proteins were found to participate in spermatogenesis, fertilization, or other aspects of reproduction. In particular, the expression of sperm motility and energy metabolism-related proteins AKAP4, SPESP1, ODF1, ODF2, GAPDHS, and ACTRT2, validated by western blotting of the proteins obtained from human and mouse samples, tended to be reduced under scrotal hyperthermia. CONCLUSIONS The results indicated that the proteins AKAP4, ODF1, ODF2, GAPDHS, SPESP1, and ACTRT2, play an important role in the heat-induced reversible reduction in sperm concentration and motility and have the potential to be the biomarkers and clinical targets for scrotal heat treatment induced male infertility.
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Affiliation(s)
- Yan-Qing Wu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Meng Rao
- Department of reproduction and genetics, the first affiliated hospital of Kunming medical university, Kunming, People's Republic of China
| | - Shi-Fu Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Dan-Dan Ke
- Department of Obstetrics and Gynecological Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Chang-Hong Zhu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Wei Xia
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
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Abd El Rahman SH, Rashed LA, Akl EM, Mostafa T. Assessment of seminal YKL-40 in infertile men with varicocele. Andrologia 2020; 52:e13756. [PMID: 32654211 DOI: 10.1111/and.13756] [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: 05/28/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 02/05/2023] Open
Abstract
Several studies attempted to explain the negative impact of varicocele on spermatogenesis and fertilisation processes. YKL-40 is a novel glycoprotein biomarker that had been associated with several diseases. This quasi-interventional study aimed to assess the seminal levels of YKL-40 in infertile men with varicocele before and after varicocelectomy. Overall, 50 men were included in this study divided into 20 healthy fertile men and 30 infertile oligoasthenoteratozoospermic (OAT) men with varicocele that underwent varicocelectomy. All participants were subjected to history taking, clinical examination and scrotal Doppler. Also, semen analysis and seminal YKL-40 assessment were carried out in the start and 6 months after varicocele surgical repair. The results showed a significant increase in the mean seminal YKL-40 level in infertile OAT men with varicocele compared with the healthy fertile men. Six months post-varicocelectomy, the mean seminal KYL-40 level exhibited significant decreases correlated with improved sperm parameters. Overall, seminal levels of YKL-40 showed significant negative correlations with sperm concentration, total sperm motility and sperm normal morphology. It could be concluded that seminal YKL-40 is elevated in infertile OAT men with varicocele where varicocelectomy induces decreased seminal YKL-40 levels correlated with improved semen parameters.
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Affiliation(s)
- Sherine H Abd El Rahman
- Department of Dermatology, Venereology & Andrology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Laila A Rashed
- Department of Biochemistry and Molecular Biology Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Essam M Akl
- Department of Dermatology, Venereology & Andrology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Taymour Mostafa
- Department of Andrology & Sexology, Faculty of Medicine, Cairo University, Cairo, Egypt
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Das M, Marak CC, Jeremy M, Gurusubramanian G, Roy VK. Heat-induced changes in the expression and localisation of PGC-1α in the mice testis. Andrologia 2020; 52:e13713. [PMID: 32557748 DOI: 10.1111/and.13713] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 01/22/2023] Open
Abstract
The functions of mammalian testis are temperature-sensitive. There are various testicular factors, which express in response to heat as a mechanism of defence. PGC-1α and HSP70 have poetical role in the protection from oxidative stress in various tissues, including testis. The expression of PGC-1α and HSP70 has been shown in the testis, and it has also been documented that heat modulates the expression of PGC-1α and HSP70. However, heat-dependent changes in the localisation and expression of PGC-1α have not been investigated so far. Thus, we studied the expression and localisation pattern of PGC-1α in the testis of heat-treated mice along with marker of proliferation (PCNA, GCNA), serum testosterone levels, MDA levels and HSP70. The results showed a significant increase in PGC-1α and HSP70 and MDA levels in the testis of heat-treated mice along with a decrease in PCNA, GCNA and serum testosterone levels. The immunolocalisation study showed intense immunostaining of PGC-1α in the Leydig cell and germ cells of the heat-treated testis, with pronounced damaged in the histoarchitecture. The results showed that increase expression of PGC-1α in germ cells and Leydig cells of testis could be a counter mechanism to cope up with oxidative stress in coordination with HSP70.
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Affiliation(s)
- Milirani Das
- Department of Zoology, Mizoram University, Aizawl, India
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50
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Panner Selvam MK, Ambar RF, Agarwal A, Henkel R. Etiologies of sperm DNA damage and its impact on male infertility. Andrologia 2020; 53:e13706. [PMID: 32559347 DOI: 10.1111/and.13706] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/11/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Male factor is responsible for up to 50% of infertility cases in the world. Semen analysis is considered the cornerstone of laboratory evaluation of male infertility, but it has its own drawbacks and fails to predict the male fertility potential with high sensitivity and specificity. Different etiologies have been linked with male infertility, of which sperm DNA damage has gained significant attention with extensive research on sperm function tests. The associations between sperm DNA damage and a variety of disorders such as varicocele, obesity, cancer, radiation and lifestyle factors are explored in this review. Furthermore, we discuss the mechanisms of DNA damage as well as its impact in different scenarios of male infertility, associated with spontaneous and assisted reproduction. Finally, we review the clinical applicability of sperm DNA fragmentation testing in the management of male infertility.
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Affiliation(s)
| | - Rafael F Ambar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Sexual and Reproductive Medicine - Department of Urology, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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