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Kim HY, Kwon HS, Lim JO, Jang HJ, Muthamil S, Shin UC, Lyu JH, Park YJ, Nam HH, Lee NY, Oh HJ, Yun SI, Jin JS, Park JH. Gonadal efficacy of Thymus quinquecostatus Celakovski: Regulation of testosterone levels in aging mouse models. Biomed Pharmacother 2024; 175:116700. [PMID: 38703505 DOI: 10.1016/j.biopha.2024.116700] [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: 01/16/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024] Open
Abstract
Late-onset hypogonadism (LOH) is an age-related disease in men characterized by decreased testosterone levels with symptoms such as decreased libido, erectile dysfunction, and depression. Thymus quinquecostatus Celakovski (TQC) is a plant used as a volatile oil in traditional medicine, and its bioactive compounds have anti-inflammatory potential. Based on this knowledge, the present study aimed to investigate the effects of TQC extract (TE) on LOH in TM3 Leydig cells and in an in vivo aging mouse model. The aqueous extract of T. quinquecostatus Celakovski (12.5, 25, and 50 µg/mL concentrations) was used to measure parameters such as cell viability, testosterone level, body weight, and gene expression, via in vivo studies. Interestingly, TE increased testosterone levels in TM3 cells in a dose-dependent manner without affecting cell viability. Furthermore, TE significantly increased the expression of genes involved in the cytochrome P450 family (Cyp11a1, Cyp17a1, Cyp19a1, and Srd5a2), which regulate testosterone biosynthesis. In aging mouse models, TE increased testosterone levels without affecting body weight and testicular tissue weight tissue of an aging animal group. In addition, the high-dose TE-treated group (50 mg/kg) showed significantly increased expression of the cytochrome p450 enzymes, similar to the in vitro results. Furthermore, HPLC-MS analysis confirmed the presence of caffeic acid and rosmarinic acid as bioactive compounds in TE. Thus, the results obtained in the present study confirmed that TQC and its bioactive compounds can be used for LOH treatment to enhance testosterone production.
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Affiliation(s)
- Hyun-Yong Kim
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Hyuck Se Kwon
- R&D Team, Food & Supplement Health Claims, Vitech, #602 Giyeon B/D 141 Anjeon-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea; Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Je-Oh Lim
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Hyun-Jun Jang
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Subramanian Muthamil
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Ung Cheol Shin
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Ji-Hyo Lyu
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Yeo Jin Park
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine, Daegu 41062, Republic of Korea
| | - Hyeon-Hwa Nam
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea
| | - Na-Young Lee
- R&D Team, Food & Supplement Health Claims, Vitech, #602 Giyeon B/D 141 Anjeon-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hyun-Jeong Oh
- R&D Team, Food & Supplement Health Claims, Vitech, #602 Giyeon B/D 141 Anjeon-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Soon-Il Yun
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Agricultural Convergence Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jong-Sik Jin
- Department of Oriental Medicine Resources, Jeonbuk National University, 79 Gobong-ro, Iksan, Jeollabuk-do 54596, Republic of Korea
| | - Jun Hong Park
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju, Jeollanam-do 58245, Republic of Korea; University of Science & Technology (UST), KIOM Campus, Korean Convergence Medicine Major, Daejeon 34054, Republic of Korea.
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Link-Rachner CS, Göbel A, Jaschke NP, Rachner TD. Endocrine health in survivors of adult-onset cancer. Lancet Diabetes Endocrinol 2024; 12:350-364. [PMID: 38604215 DOI: 10.1016/s2213-8587(24)00088-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 04/13/2024]
Abstract
Long-term survivors of cancer (ie, the patient who is considered cured or for whom the disease is under long-term control and unlikely to recur) are at an increased risk of developing endocrine complications such as hypothalamic-pituitary dysfunctions, hypogonadisms, osteoporosis, or metabolic disorders, particularly when intensive tumour-directed therapies are applied. Symptom severity associated with these conditions ranges from mild and subclinical to highly detrimental, affecting individual health and quality of life. Although they are usually manageable, many of these endocrine pathologies remain underdiagnosed and untreated for years. To address this challenge, a higher degree of awareness, standardised screening tools, comprehensible treatment algorithms, and a close collaborative effort between endocrinologists and oncologists are essential to early identify patients who are at risk, and to implement appropriate treatment protocols. This Review highlights common symptoms and conditions related to endocrine disorders among survivors of adult-onset cancer, provides a summary of the currently available practice guidelines, and proposes a practical approach to diagnose affected patients among this group.
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Affiliation(s)
- Cornelia S Link-Rachner
- Division of Haematology and Oncology, Department of Medicine I, Technische Universität Dresden, Dresden, Germany
| | - Andy Göbel
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nikolai P Jaschke
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Tilman D Rachner
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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Achermann AP, Esteves SC. Prevalence and clinical implications of biochemical hypogonadism in patients with nonobstructive azoospermia undergoing infertility evaluation. F S Rep 2024; 5:14-22. [PMID: 38524219 PMCID: PMC10958705 DOI: 10.1016/j.xfre.2023.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 11/12/2023] [Indexed: 03/26/2024] Open
Abstract
Objective To investigate the prevalence and clinical implications of biochemical hypogonadism in infertile men with nonobstructive azoospermia (NOA). Design Cohort study. Setting University-affiliated tertiary center for male reproductive health. Patients 767 consecutive normogonadotropic or hypergonadotropic patients with NOA undergoing infertility evaluation from 2014 to 2021. Intervention Patients aged 23-55 years underwent comprehensive clinical, hormonal, genetic, semen analysis, and histopathology evaluations and were classified on the basis of predefined baseline follicle-stimulating hormone (12 IU/L) and total testosterone (350 ng/dL) serum levels cutpoints into four groups: hypergonadotropic hypogonadal, hypergonadotropic eugonadal, normogonadotropic hypogonadal, and normogonadotropic eugonadal. All patients were naïve regarding previous sperm retrieval (SR) or hormonal therapy use. Main Outcome Measures The period prevalence of biochemical hypogonadism, defined as testosterone levels of <350 ng/dL, and the distribution of patients per group were computed. The associations between hypogonadism, clinical factors, and SR success were evaluated using multivariable logistic regression analyses. Adjusted relative risks (aRRs) and 95% confidence intervals (CIs) were estimated to assess the association between SR and patient classification. Results The overall period prevalence of biochemical hypogonadism was 80.8% (95% CI 77.9%-83.4%). The prevalence of patients by group was hypergonadotropic hypogonadal (42.4%, 38.9%-45.9%), normogonadotropic hypogonadal (38.5%; 35.1%-41.9%), hypergonadotropic eugonadal (8.3%; 6.6%-10.5%), and normogonadotropic eugonadal (10.8%; 8.8%-13.2%). Reduced testicular volume and lower estradiol levels were associated with an increased likelihood of hypogonadism. Paternal age was also an independent predictor, with higher age linked to an increased likelihood of hypogonadism. Hypogonadism was less likely in patients with germ cell maturation arrest and more likely in those with Sertoli cell-only. Patients with hypergonadotropic hypogonadism had lower SR success than normogonadotropic eugonadal counterparts (aRR 0.611; 95% CI 0.398-0.855). In the subset of hypogonadal men, hypergonadotropic patients had lower SR success than normogonadotropic participants (aRR 0.632; 0.469-0.811). Conclusion The prevalence of biochemical hypogonadism among men with NOA is substantial. Hypogonadism is associated with testicular volume, estradiol levels, age, and histopathology patterns. This condition impacts SR success and emphasizes the need for improved care for men with NOA.
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Affiliation(s)
- Arnold P.P. Achermann
- ANDROFERT, Andrology and Human Reproduction Clinic, Campinas, São Paulo, Brazil
- Division of Urology, Department of Surgery, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Sandro C. Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Campinas, São Paulo, Brazil
- Division of Urology, Department of Surgery, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
- Faculty of Health, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Xing D, Jin Y, Sun D, Liu Y, Cai B, Gao C, Cui Y, Jin B. Protective effect of TNFAIP3 on testosterone production in Leydig cells under an aging inflammatory microenvironment. Arch Gerontol Geriatr 2024; 117:105274. [PMID: 37995648 DOI: 10.1016/j.archger.2023.105274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND The aging inflammatory microenvironment surrounding Leydig cells is linked to reduced testosterone levels in males. Tumor necrosis factor alpha-induced protein 3 (TNFAIP3) acts as a critical anti-inflammatory factor in various aging-related diseases. This study aims to investigate the protective effect of TNFAIP3 on testosterone production in Leydig cells under an aging inflammatory microenvironment. METHODS Bioinformatics analysis examined TNFAIP3 expression differences in aging rat testes and validated the findings in aging mouse testes. In vitro models of inflammation were established using two Leydig cell lines, with tumor necrosis factor alpha (TNF-α) as the inflammatory factor. Lentiviral transduction was utilized to manipulate TNFAIP3 expression in these cell lines. Transcriptomic sequencing identified differentially expressed genes in TNFAIP3-overexpressing cells. RESULTS Bioinformatics analysis and validation experiments revealed increased inflammatory signaling and elevated TNFAIP3 expression in aging rat and mouse testes. TNFAIP3 knockdown worsened testosterone synthesis inhibition and apoptosis in cells, while TNFAIP3 overexpression reversed these effects. Transcriptome analysis identified alterations in the P38MAPK pathway following TNFAIP3 overexpression. TNFAIP3 knockdown enhanced TNF-induced P38MAPK signaling, whereas its overexpression attenuated this effect. TNFAIP3 was found to regulate testosterone synthesis by upregulating CEBPB expression. CONCLUSIONS TNFAIP3 exhibits inhibitory effects on apoptosis and promotes testosterone production in Leydig cells. The protective influence of TNFAIP3 on Leydig cells within an inflammatory microenvironment is likely mediated through by inhibiting the P38MAPK pathway and upregulating CEBPB expression.
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Affiliation(s)
- Dong Xing
- Medical College of Southeast University, 210009, Nanjing, Jiangsu, China
| | - Yihan Jin
- Reproductive Medicine Center, Zhongda Hospital, Southeast University, 210009, Nanjing, Jiangsu, China
| | - Dalin Sun
- Andrology Department of Integrative Medicine, Zhongda Hospital, Southeast University, 210009, Nanjing, Jiangsu, China
| | - Yuanyuan Liu
- Medical College of Southeast University, 210009, Nanjing, Jiangsu, China
| | - Bin Cai
- Andrology Department of Integrative Medicine, Zhongda Hospital, Southeast University, 210009, Nanjing, Jiangsu, China
| | - Chao Gao
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, Jiangsu, China
| | - Yugui Cui
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, Jiangsu, China
| | - Baofang Jin
- Andrology Department of Integrative Medicine, Zhongda Hospital, Southeast University, 210009, Nanjing, Jiangsu, China.
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Chen Y, Shu A, Jiang M, Jiang J, Du Q, Chen T, Shaw C, Chai W, Chao T, Li X, Wu Q, Gao C. Exenatide improves hypogonadism and attenuates inflammation in diabetic mice by modulating gut microbiota. Int Immunopharmacol 2023; 120:110339. [PMID: 37210914 DOI: 10.1016/j.intimp.2023.110339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
With the rising incidence of diabetes and its onset at a younger age, the impact on the male reproductive system has gradually gained attention. Exenatide is a glucagon-like peptide-1 receptor agonist effective in the treatment of diabetes. However, its role in diabetes-induced reproductive complications has rarely been reported. The study aimed to investigate the mechanism by which exenatide improved diabetic hypogonadism by regulating gut microbiota (GM) mediated inflammation. C57BL/6J mice were equally divided into normal control (NC), diabetic model control (DM) and exenatide-treated (Exe) groups. Testicular, pancreatic, colonic, and fecal samples were collected to assess microbiota, morphologic damage, and inflammation. Exenatide significantly reduced the fasting blood glucose (FBG) level in diabetic mice, increased the testosterone level, ameliorated the pathological morphological damage of islet, colon, and testes, and reduced the expression of pro-inflammatory factors, tumor necrosis factor-alpha (TNF-α) and interleukin (IL)-6 in colon and testis. Furthermore, exenatide significantly reduced the abundance of some pathogenic bacteria, such as Streptococcaceae and Erysipelotrichaceae, and increased that of beneficial bacteria Akkermansia. Probiotics, such as Lactobacillus were negatively correlated with TNF-α, nuclear factor-kappa-B (NF-κB), IL-6, and FBG. Conditional pathogenic bacteria such as Escherichia/Shigella Streptococcus were positively correlated with TNF-α, NF-κB, IL-6, and FBG. The fecal bacteria transplantation experiment revealed that the abundance of pathogenic bacteria, Peptostreptococcaceae, significantly decreased from Exe group mice to pseudo-sterile diabetic mice, and the pathological damage to testes was also alleviated. These data suggested the protective effects of exenatide on male reproductive damage induced by diabetes by regulating GM.
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Affiliation(s)
- Yuping Chen
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Anmei Shu
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Ming Jiang
- School of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Jinjin Jiang
- School of Medical Technology, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Qiu Du
- Department of pharmacy, Nanjing Hospital of Chinese Medicine, NanJing 210001, Jiangsu, China
| | - Tianbao Chen
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Chris Shaw
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Wengang Chai
- School of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - TianQi Chao
- School of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Xiangzhe Li
- School of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China
| | - Qin Wu
- School of Medicine, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China.
| | - Cuixiang Gao
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng 224005, Jiangsu, China.
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Ahmad IH, Mohamed Mostafa ER, Mohammed SA, Shipl W, Soliman AA, Said M. Correlations between serum testosterone and irisin levels in a sample of Egyptian men with metabolic syndrome; (case-control study). Arch Physiol Biochem 2023; 129:180-185. [PMID: 32880474 DOI: 10.1080/13813455.2020.1808018] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Metabolic syndrome (MetS) in men is a common problem. Several studies highlight that testosterone deficiency is associated with metabolic disorders that may be explained by "myokines". Irisin is an adipo-myokine that has beneficial metabolic effects. AIM To evaluate serum testosterone in a sample of Egyptian men with MetS diagnosed by NCEP ATP III, and correlate it with serum irisin level. METHODS A total of 90 men (60 with MetS and 30 healthy age-matched controls) participated in the study. Testosterone level is estimated by an automated system, Irisin level was measured by ELISA. RESULTS Circulating irisin was positively correlated with serum testosterone and was significantly lower in patients with MetS. CONCLUSION This study highlights the effect of serum testosterone on irisin formation from skeletal muscle. Recommendations; treatments of MetS may include testosterone supplementation. Further studies are needed to elucidate this association.
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Affiliation(s)
- Inass Hassan Ahmad
- Endocrinology Department, Faculty of Medicine (for Girls), Al-Azhar University, Cairo, Egypt
| | | | | | - Walaa Shipl
- Department of Biochemistry and Molecular Biology, Al-Azhar University, Cairo, Egypt
| | - Amany Ahmed Soliman
- Urology Department, Faculty of Medicine (for Girls), Al-Azhar University, Cairo, Egypt
| | - Marwa Said
- Dermatology and Venereology Department, Faculty of Medicine (for Girls), Al-Azhar University, Cairo, Egypt
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Male Sex Hormones, Metabolic Syndrome, and Aquaporins: A Triad of Players in Male (in)Fertility. Int J Mol Sci 2023; 24:ijms24031960. [PMID: 36768282 PMCID: PMC9915845 DOI: 10.3390/ijms24031960] [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: 12/30/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Infertility is becoming a chronic and emerging problem in the world. There is a resistant stigma that this health condition is mostly due to the female, although the literature supports that the responsibility for the onset of infertility is equally shared between both sexes in more or less equal proportions. Nevertheless, male sex hormones, particularly testosterone (T), are key players in male-related infertility. Indeed, hypogonadism, which is also characterized by changes in T levels, is one of the most common causes of male infertility and its incidence has been interconnected to the increased prevalence of metabolic diseases. Recent data also highlight the role of aquaporin (AQP)-mediated water and solute diffusion and the metabolic homeostasis in testicular cells suggesting a strong correlation between AQPs function, metabolism of testicular cells, and infertility. Indeed, recent studies showed that both metabolic and sexual hormone concentrations can change the expression pattern and function of AQPs. Herein, we review up-to-date information on the involvement of AQP-mediated function and permeability in men with metabolic syndrome and testosterone deficit, highlighting the putative mechanisms that show an interaction between sex hormones, AQPs, and metabolic syndrome that may contribute to male infertility.
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8
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Higashi T, Aso S, Horisaki H, Ito T, Tanaka S, Nishimoto-Kusunose S, Ogawa S, Kato K, Ide H. Evaluation of thumbnail clipping as a specimen for retrospectively assessing average production of testosterone. Clin Chim Acta 2023; 538:157-163. [PMID: 36417978 DOI: 10.1016/j.cca.2022.11.019] [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: 10/06/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND The chronic abnormal production of testosterone (T) is associated with many disorders in men. Fingernail clippings might be more suited for the diagnosis and medium-to-long term therapeutic monitoring for the T-related chronic disorders than the blood-derived specimens. The objective of this study was to characterize a thumbnail clipping as the specimen for assessing the several months-old T status. METHODS Thumbnail clippings from various subjects were analyzed by liquid chromatography/electrospray ionization-tandem mass spectrometry to evaluate the gender difference, and changes caused by aging and androgen deprivation therapy (ADT) in the thumbnail T concentration. RESULTS There was an evident gender difference in the thumbnail T concentrations [male; 2.55 ± 0.85 ng/g and female; 0.48 ± 0.29 ng/g, mean ± SD (n = 25 each), Welch t-test]. The thumbnail T concentrations significantly decreased with age in men (n = 268, Scheffé F-test), which was similar to those of the free or bioavailable T in serum/plasma. The thumbnail T concentrations sharply decreased by a 6-months ADT (especially the effect of the luteinizing hormone-releasing hormone agonist/antagonist) for patients with prostate cancer (n = 10). CONCLUSIONS The thumbnail clipping can be a specimen to retrospectively assess the average T production.
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Affiliation(s)
- Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
| | - Saki Aso
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hiroaki Horisaki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takenori Ito
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Sakurako Tanaka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shoichi Nishimoto-Kusunose
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan; Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama, Hiroshima 729-0292, Japan
| | - Kazuhiko Kato
- ASKA Pharma Medical Co., Ltd., 2-26-1 Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Hisamitsu Ide
- Department of Urology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minami-koshigaya, Koshigaya, Saitama 343-8555, Japan
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Carrageta DF, Guerra-Carvalho B, Spadella MA, Yeste M, Oliveira PF, Alves MG. Animal models of male reproductive ageing to study testosterone production and spermatogenesis. Rev Endocr Metab Disord 2022; 23:1341-1360. [PMID: 35604584 DOI: 10.1007/s11154-022-09726-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/15/2022] [Indexed: 01/11/2023]
Abstract
Ageing is the time-dependent gradual decline of the functional characteristics in an organism. It has been shown that it results in the loss of reproductive health and fertility. The age-dependent decline of fertility is a potential issue as the parenthood age is increasing in Western countries, mostly due to socioeconomic factors. In comparison to women, for whom the consequences of ageing are well documented and general awareness of the population is extensively raised, the effects of ageing for male fertility and the consequences of advanced paternal age for the offspring have not been widely studied. Studies with humans are welcome but it is hard to implement relevant experimental approaches to unveil the molecular mechanisms by which ageing affects male reproductive potential. Animal models have thus been extensively used. These models are advantageous due to their reduced costs, general easy maintenance in laboratory facilities, rigorous manipulation tools, short lifespan, known genetic backgrounds, and reduced ethical constraints. Herein, we discuss animal models for the study of male reproductive ageing. The most well-known and studied reproductive ageing models are rodents and non-human primates. The data collected from these models, particularly studies on testicular ageing, steroidogenesis, and genetic and epigenetic changes in spermatogenesis are detailed. Notably, some species challenge the currently accepted ageing theories and the concept of senescence itself, which renders them interesting animal models for the study of male reproductive ageing.
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Affiliation(s)
- David F Carrageta
- Clinical and Experimental Endocrinology, UMIB - Unit for Multidisciplinary Research in Biomedicine, ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
| | - Bárbara Guerra-Carvalho
- Clinical and Experimental Endocrinology, UMIB - Unit for Multidisciplinary Research in Biomedicine, ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
- Department of Chemistry, QOPNA & LAQV, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | | | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
| | - Pedro F Oliveira
- Department of Chemistry, QOPNA & LAQV, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Marco G Alves
- Clinical and Experimental Endocrinology, UMIB - Unit for Multidisciplinary Research in Biomedicine, ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal.
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal.
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain.
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain.
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10
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Molecular mechanisms regulating spermatogenesis in vertebrates: Environmental, metabolic, and epigenetic factor effects. Anim Reprod Sci 2022; 246:106896. [PMID: 34893378 DOI: 10.1016/j.anireprosci.2021.106896] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022]
Abstract
The renewal of the natural resources is one of the most concerning aspects of modern farming. In animal production, there are many barriers breeders and researchers have to overcome to develop new practices to improve reproductive potential and hasten sexual maturation of the commercially viable species, while maintaining meat quality and sustainability. With the utilization of molecular biology techniques, there have been relevant advances in the knowledge of spermatogenesis, especially in mammals, resulting in new possibilities to control male fertility and the selection of desirable characteristics. Most of these discoveries have not been implemented in animal production. In this review, recent studies are highlighted on the molecular pathways involved in spermatogenesis in the context of animal production. There is also exploration of the interaction between environmental factors and spermatogenesis and how this knowledge may revolutionize animal production techniques. Furthermore, new insights are described about the inheritance of desired characteristics in mammals and there is a review of nefarious actions of pollutants, nutrition, and metabolism on reproductive potential in subsequent generations. Even though there are these advances in knowledge base, results from recent studies indicate there are previously unrecognized environmental effects on spermatogenesis. The molecular mechanisms underlying this interaction are not well understood. Research in spermatogenesis, therefore, remains pivotal as a pillar of animal production sustainability.
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Rajandram R, Koong JK, Quek KF, Lee EG, Razack AHA, Kuppusamy S. Ethnic differences in serum testosterone concentration among Malay, Chinese and Indian men: A cross-sectional study. Clin Endocrinol (Oxf) 2022; 97:303-309. [PMID: 35107834 DOI: 10.1111/cen.14682] [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: 05/23/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate non-urological patients with multiple comorbidities for factors contributing towards differences in testosterone concentration in multiethnic Malaysian men. DESIGN An observational study. PATIENTS Sexually active men, ≥40 years, with no known urological problems, were recruited at the phlebotomy clinic at our centre. MEASUREMENTS A brief history along with latest fasting lipid profile and plasma glucose levels were obtained. An Aging Male Symptoms questionnaire was administered; waist circumference (WC) and serum testosterone concentration were measured. STATSTICAL ANALYSIS Analysis of testosterone concentration between Malay, Indian and Chinese men was performed. Statistical tests such as analysis of variance, χ2 test, univariate and multivariable regression were performed. Any p < .05 was noted as statistically significant. RESULTS Among the 604 participants analysed, mean testosterone concentration was significantly lower in Malays (15.1 ± 5.9 nmol/L) compared to the Chinese (17.0 ± 5.9 nmol/L) and Indian (16.1 ± 6.5 nmol/L) participants. The mean WC was also found to be higher among the Malays (96.1 ± 10.9 cm) compared to Chinese (92.6 ± 9.6 cm) and Indians (95.6 ± 9.9 cm). Testosterone concentration tended to be lower with higher age, but this was not statistically significant (p > .05). In the multivariable analysis only Malay ethnicity, WC ≥ 90 cm and low high-density lipoprotein (HDL) were associated with lower testosterone concentration. CONCLUSION In this study, Malaysian men of Malay origin had lower testosterone concentration compared with Indian and Chinese men. WC and low HDL were also associated with lower testosterone concentrations.
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Affiliation(s)
- Retnagowri Rajandram
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Jun K Koong
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
- Division of Urology, Universiti Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Kia F Quek
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Eng G Lee
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Azad H A Razack
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Shanggar Kuppusamy
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
- Division of Urology, Universiti Malaya Medical Centre, Kuala Lumpur, Malaysia
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12
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Sharif Z, Akhtar MF, Sharif H, Saleem A, Khan MI, Riaz A. Endocrine disruption: Reproductive toxicity of glyceryl trinitrate and isosorbide mononitrate in male Wistar rats. Andrologia 2022; 54:e14482. [PMID: 35648594 DOI: 10.1111/and.14482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/16/2022] [Accepted: 05/06/2022] [Indexed: 11/01/2022] Open
Abstract
Glyceryl trinitrate (GTN) and isosorbide mononitrate (IM) are organic nitrates which release nitric oxide upon metabolism with potential to adversely affect male reproductive function. Therefore, this study was designed to evaluate the sub-chronic effect of these organic nitrates on reproductive system in male rats. Wistar rats were separately treated with GTN and IM at 2.5, 5 and 7.5 mg/kg/day by oral gavage for 45 days. At the end of treatment, serum blood samples were taken from anaesthetized rats for assessment of hormonal profile. Epididymis was removed to analyse sperm parameters. Rat testes were dissected to perform histopathological evaluation and oxidative stress biomarkers. The GTN and IM treated groups showed a significant decrease in sperm parameters (count, motility and viability) and serum testosterone in comparison to normal control group. The GTN and IM treatment also altered sperm morphology such as bent tail and head deformities as compared to control. A significant decrease in catalase activity and, increase in nitric oxide and malondialdehyde were observed in high dose drug treated groups. Moreover, a significant increase in follicle stimulating hormone and decrease in testosterone levels were evident in all drug treated groups. The level of luteinizing hormone was raised in rats treated with medium doses of drugs while it decreased at the highest dose of both drugs. Histological study showed vacuolization and degeneration of seminiferous tubules. It is concluded that GTN and IM treatment adversely affected the male reproductive function by altering sperm parameters and disrupting the reproductive hormone profile which may be attributed to the increased level of nitric oxide and oxidative stress.
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Affiliation(s)
- Zumna Sharif
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Muhammad Furqan Akhtar
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Hamna Sharif
- Department of Obstetrics and Gynaecology, Shaikh Zayed Hospital, Lahore, Pakistan
| | - Ammara Saleem
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Imran Khan
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Amjad Riaz
- Department of Thriogenology, University of Veterinary and Animal Science, Lahore, Pakistan
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Exenatide and Dapagliflozin Combination Enhances Sertoli Cell Secretion of Key Metabolites for Spermatogenesis. Biomedicines 2022; 10:biomedicines10051115. [PMID: 35625851 PMCID: PMC9139030 DOI: 10.3390/biomedicines10051115] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/04/2022] [Accepted: 05/10/2022] [Indexed: 01/14/2023] Open
Abstract
The incidence of metabolic diseases such as type 2 diabetes mellitus (DM) and obesity has been increasing dramatically. Both diseases are closely linked and new approaches for type 2 DM treatment aim to enable weight loss. A combined therapy of dapagliflozin and exenatide has been used against type 2 DM, influencing allbody glucose dynamics. Spermatogenesis is highly dependent on the metabolic cooperation established between Sertoli cells (SCs) and developing germ cells. To study the effects of dapagliflozin and exenatide on SC metabolism, mouse SCs were treated in the presence of sub-pharmacologic, pharmacologic, and supra-pharmacologic concentrations of dapagliflozin (50, 500, 5000 nM, respectively) and/or exenatide (2.5, 25, 250 pM, respectively). Cytotoxicity of these compounds was evaluated and the glycolytic profile, glycogen content assay, and lipid accumulation of SCs were determined. Dapagliflozin treatment decreased fat cellular deposits, demonstrating its anti-obesity properties at the cellular level. Polytherapy of exenatide plus dapagliflozin increased lactate production by SCs, which has been reported to improve sperm production and quality. Thus, the results herein suggest that the use of these two pharmacological agents can protect male fertility, while improving their glucose homeostasis and inducing weight loss.
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Wang SK, Lee MC, Hung CL, Chen HH, Liao CC, Chiu YL. Association between hypertriglyceridemic waist phenotype and hypogonadism in Taiwanese adult men. PLoS One 2022; 17:e0265629. [PMID: 35320301 PMCID: PMC8942218 DOI: 10.1371/journal.pone.0265629] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 03/04/2022] [Indexed: 11/19/2022] Open
Abstract
Background Aging-related hypogonadism in men is related to the deterioration of overall health. Those with this disease rarely receive treatment. The hypertriglyceridemic waist (HTGW) phenotype is a tool for predicting abnormalities of cardiovascular metabolism. However, the relationship between the HTGW phenotype and hypogonadism remains undetermined. This study aimed to determine the association between HTGW phenotype and hypogonadism in different age groups. Methods Data of this cross-sectional study were obtained from MJ Health Screening Center in Taiwan from 2007 to 2016. The HTGW phenotype was divided into four categories based on whether the waist circumference (WC) and triglyceride levels were normal. WC of <90 cm and triglyceride level of <150 mg/dL were defined as normal. Hypogonadism was defined as a testosterone level of <300 ng/dL. Results Overall, 6442 male participants were divided into three age groups: <50, 50–64, and ≥65 years (n = 4135, 1958, and 349; age groups 1, 2, and 3, respectively). The overall prevalence of hypogonadism was 10.6%. In group 1, participants with HTGW (odds ratio, 1.98; 95% confidence interval (CI), 1.354–2.896) had a higher risk of hypogonadism than those with normal WC and normal triglyceride levels after adjustment for body mass index and fasting blood glucose level. In group 2, participants with HTGW (odds ratio, 1.873; 95% CI, 1.099–3.193) had an increased risk of hypogonadism after adjustment for body mass index, fasting blood glucose level, Cholesterol levels, high-density lipoprotein (HDL) levels, low-density lipoprptein (LDL) levels and smoking status. However, no relationship was observed between HTGW phenotype and hypogonadism in group 3. Conclusion HTGW phenotype was highly associated with hypogonadism in Taiwanese adult men. More attention should be paid to men aged <50 years with HTGW.
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Affiliation(s)
- Sheng-Kuang Wang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Medical Administrative Department, Taichung Army Forces General Hospital, Taichung, Taiwan
| | - Meng-Chih Lee
- Department of Family Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
- College of Management, Chaoyang University of Technology, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Chia-Lien Hung
- Department of Medical Education and Research, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Hsin-Hung Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asia University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Law, Providence University, Taichung, Taiwan
- Chung Sheng clinic, Nantou, Taiwan
| | - Chun-Cheng Liao
- Department of Medical Education and Research, Taichung Armed Forces General Hospital, Taichung, Taiwan
- Department of Family Medicine, Taichung Armed Forces General Hospital, Taichung, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (CCL); (YLC)
| | - Yu-Lung Chiu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- School of Public Health, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (CCL); (YLC)
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15
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Relationship between Varicocele and Male Hypogonadism: A Review with Meta-Analysis. ENDOCRINES 2022. [DOI: 10.3390/endocrines3010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The relationship between varicocele and hypogonadism becomes clearer everyday thanks to the most recent literature, particularly with regards to the impact of varicocele repair on serum testosterone level improvement in hypogonadal patients. We selected English articles published from 1964 to September 2021. The search terms “varicocele” and “hypogonadism” were used as filters. A total of 102 studies have been obtained. For the meta-analysis, the pooled mean differences (MDs) for continuous variables and the ln(OR) were used for data pooling observational studies. A total of 15 articles have been finally included: nine retrospective and six observational. Testosterone levels pre- and after surgery were reported in four studies. There was statistically significant heterogeneity in these studies (chi2 = 267.09, I2 = 72%; p = 0.01). Mean differences of total testosterone was statistically different in men pre- and after-surgery (mean difference = 106.76; p < 0.0001). It is indeed established that altered environments caused by varicocele cause pantesticular insult, but it has not been unequivocally determined whether men with varicocele are at increased risk for the development of clinical hypogonadal symptoms.
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Zhang X, Xiao J, Liu T, He Q, Cui J, Tang S, Li X, Liu M. Low Serum Dehydroepiandrosterone and Dehydroepiandrosterone Sulfate Are Associated With Coronary Heart Disease in Men With Type 2 Diabetes Mellitus. Front Endocrinol (Lausanne) 2022; 13:890029. [PMID: 35832423 PMCID: PMC9271610 DOI: 10.3389/fendo.2022.890029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS Sex hormones play an important role in the pathogenesis of cardiovascular disease (CVD). This cross-sectional study aimed to explore the associations of dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) with coronary heart disease (CHD) and stroke in middle-aged and elderly patients with type 2 diabetes mellitus (T2DM). MATERIALS AND METHODS A total of 995 patients with T2DM were included in the study analysis. Serum levels of DHEA and DHEAS were quantified using liquid chromatography-tandem mass spectrometry. Binary logistic regression analyses were performed to assess the associations of DHEA and DHEAS with CHD and stroke. Receiver operating characteristic (ROC) curve analysis was performed to determine the optimal DHEA and DHEAS cutoff values for the detection of CHD in men with T2DM. RESULTS In men with T2DM, after adjustment for potential confounders in model 3, the risk of CHD decreased with an increasing serum DHEA level [odds ratio (OR) = 0.38, quartile 4 vs. quartile 1; 95% confidence interval (CI) = 0.16-0.90; p = 0.037 for trend). Consistently, when considered as a continuous variable, this association remained significant in the fully adjusted model (OR = 0.59, 95% CI = 0.40-0.87, p < 0.05). When taken as a continuous variable in model 3, serum DHEAS level was also inversely related to the risk of CHD among men (OR = 0.56, 95% CI = 0.38-0.82, p < 0.05). Similarly, this relationship remained statistically significant when DHEAS was categorized into quartiles (OR = 0.27, quartile 4 vs. quartile 1; 95% CI = 0.11-0.67; p = 0.018 for trend). ROC curve analyses revealed that the optimal cutoff values to detect CHD in men with T2DM were 6.43 nmol/L for DHEA and 3.54 μmol/L for DHEAS. In contrast, no significant associations were found between DHEA and DHEAS on the one hand and stroke on the other in men and women with T2DM (all p > 0.05). CONCLUSIONS Serum DHEA and DHEAS were significantly and negatively associated with CHD in middle-aged and elderly men with T2DM. This study suggests potential roles of DHEA and DHEAS in CHD pathogenesis.
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Affiliation(s)
| | | | | | | | | | - Shaofang Tang
- *Correspondence: Ming Liu, ; Xin Li, ; Shaofang Tang,
| | - Xin Li
- *Correspondence: Ming Liu, ; Xin Li, ; Shaofang Tang,
| | - Ming Liu
- *Correspondence: Ming Liu, ; Xin Li, ; Shaofang Tang,
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Ishida T, Koyanagi-Aoi M, Yamamiya D, Onishi A, Sato K, Uehara K, Fujisawa M, Aoi T. Differentiation of Human Induced Pluripotent Stem Cells Into Testosterone-Producing Leydig-like Cells. Endocrinology 2021; 162:6373541. [PMID: 34549267 DOI: 10.1210/endocr/bqab202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Indexed: 12/26/2022]
Abstract
Late-onset hypogonadism (LOH) syndrome, due to a partial lack of testosterone, decreases the quality of life of older men. Testosterone is mainly secreted by Leydig cells in the testes. Leydig cell transplantation is expected to be a promising alternative to conventional testosterone replacement therapy for LOH syndrome. We herein report a simple and robust protocol for directed differentiation of human induced pluripotent stem cells (hiPSCs) into Leydig-like cells by doxycycline-inducible overexpression of NR5A1 and treatment with a combination of 8-bromoadenosine-3',5'-cyclic monophosphate (8-Br-cAMP) and forskolin. The differentiated cells expressed the steroidogenic enzyme genes STAR, CYP11A1, CYP17A1, and HSD3B2 and the specific markers of adult Leydig cells HSD17B3, INSL3, and LHCGR. Furthermore, we confirmed the secretion of functional testosterone from the cells into the culture supernatant by a testosterone-sensitive cell proliferation assay. These findings showed that the hiPSCs were able to be differentiated into Leydig-like cells, supporting the expectation that hiPSC-derived Leydig-like cells can be novel tools for treating LOH syndrome.
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Affiliation(s)
- Takaki Ishida
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Division of Urology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Michiyo Koyanagi-Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Center for Human Resource Development for Regenerative Medicine, Kobe University Hospital, Kobe 650-0017, Japan
| | - Daisuke Yamamiya
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, Kanazawa 920-8641, Japan
| | - Atsushi Onishi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Division of Urology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Katsuya Sato
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Division of Urology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Keiichiro Uehara
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Department of Diagnostic Pathology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Masato Fujisawa
- Division of Urology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Takashi Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan
- Department of iPS cell applications, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
- Center for Human Resource Development for Regenerative Medicine, Kobe University Hospital, Kobe 650-0017, Japan
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Ribeiro JC, Alves MG, Amado F, Ferreira R, Oliveira P. Insights and clinical potential of proteomics in understanding spermatogenesis. Expert Rev Proteomics 2021; 18:13-25. [PMID: 33567922 DOI: 10.1080/14789450.2021.1889373] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: With the worldwide decline on male fertility potential, the importance of the insight of the spermatogenic process has been increasing. In recent years, proteomic methodologies have been applied to seminal fluid of infertile men to search for infertility potential biomarkers. However, to understand the spermatogenic event and to search for treatment to spermatogenic impairment, comparative analysis of testicular proteomics is considered a powerful methodology.Areas covered: Herein, we present a critical overview of the studies addressing proteomic alterations in the development of spermatogenesis during puberty, as well as during the different phases of the spermatogenic event. The comparative studies of the proteomic testicular profile of men with and without spermatogenic impairment are also discussed and key proteins and pathways involved highlighted.Expert opinion: The usage of whole human testicular tissue with its heterogeneous cellular composition makes proteome data interpretation particularly challenging. This may be minimized by controlled experiments involving the collection of testicular tissue and sperm from the same individuals, integrated in a clinically characterized cohort of healthy and infertile men. The analysis of specific subcellular proteomes can add more information to the proteomic puzzle, opening new treatment possibilities for infertile/subfertile men.
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Affiliation(s)
- João C Ribeiro
- Department of Anatomy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Marco G Alves
- Department of Anatomy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Francisco Amado
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Rita Ferreira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Pedro Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
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Abstract
Over the past two decades several large cohort studies have been performed to disclose the changes of sex hormone in elderly and their clinical significance. Beyond the decline of total testosterone, aging is accompanied by a sex hormone binding globulin (SHBG) increase, a steeper free testosterone decline, while gonadotropins may be increased or inappropriately normal, with important contribution of comorbidities (e.g., obesity) to these changes. Actually, it has become firm the concept that the biochemical finding of testosterone deficiency alone is not sufficient for diagnosing hypogonadism in older men. The definition of late-onset hypogonadism (LOH) includes low serum testosterone levels coupled with signs and symptoms related to hypogonadism. Indeed, the combination of multiple factors all contributing to the testosterone decline, with other concurrent comorbidities further overlapping, makes the clinical correlates of LOH highly heterogeneous. For all these reasons both the diagnosis and the therapeutic management of LOH, especially the decision about starting testosterone replacement treatment, remain challenging.
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Liu YJ, Shen XB, Yu N, Shang XJ, Gu YQ, Zuo LD, Xiong CL, Ye Z, Zhou YZ. Prevalence of late-onset hypogonadism among middle-aged and elderly males in China: results from a national survey. Asian J Androl 2021; 23:170-177. [PMID: 33154202 PMCID: PMC7991815 DOI: 10.4103/aja.aja_59_20] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
This study aimed to propose an operational definition of late-onset hypogonadism (LOH) that incorporates both clinical symptoms and serum testosterone measurements to evaluate the prevalence of LOH in aging males in China. A population-based sample of 6296 men aged 40 years-79 years old was enrolled from six representative provinces in China. Serum total testosterone (TT), sex hormone-binding globulin (SHBG), and luteinizing hormone (LH) were measured and free testosterone (cFT) was calculated. The Aging Males' Symptoms (AMS) scale was used to evaluate the LOH symptoms. Finally, 5078 men were included in this analysis. The TT levels did not decrease with age (P = 0.59), and had no relationship with AMS symptoms (P = 0.87 for AMS total score, P = 0.74 for ≥ 3 sexual symptoms). The cFT levels decreased significantly with age (P < 0.01) and showed a negative association with the presence of ≥ 3 sexual symptoms (P = 0.03). The overall estimated prevalence of LOH was 7.8% (395/5078) if a cFT level <210 pmol l-1 combined with the presence of ≥ 3 sexual symptoms was used as the criterion of LOH. Among them, 26.1% (103/395) and 73.9% (292/395) had primary and secondary hypogonadism, respectively. After adjustment for confounding factors, primary and secondary hypogonadism was positively related to age and comorbidities. Body mass index was an independent risk factor for secondary hypogonadism. The results suggest that the AMS total score is not an appropriate indicator for decreased testosterone, and that the cFT level is more reliable than TT for LOH diagnosis. Secondary hypogonadism is the most common form of LOH.
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Affiliation(s)
- Yi-Jun Liu
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
| | - Xu-Bo Shen
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
| | - Na Yu
- Scientific Research Center, The Third Affiliated Hospital of Guang Dong Medical University (Long Jiang Hospital of Shunde District Foshan City), Foshan 528318, China
| | - Xue-Jun Shang
- Department of Andrology, Eastern Theater General Hospital, Nanjing 210002, China
| | - Yi-Qun Gu
- Institute of Science and Technology, National Research Institute for Family Planning, Beijing 100081, China
| | - Lian-Dong Zuo
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510632, China
| | - Cheng-Liang Xiong
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhen Ye
- Department of Urology and Andrology, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430013, China
| | - Yuan-Zhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
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Interplay between male reproductive system dysfunction and the therapeutic effect of flavonoids. Fitoterapia 2020; 147:104756. [PMID: 33069836 DOI: 10.1016/j.fitote.2020.104756] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 12/20/2022]
Abstract
Male infertility has affected many families around the world. However, due to the mechanism underlying male reproductive system dysfunction are not completely elucidated, the use of drugs for male reproductive system dysfunction treatment only insignificant higher pregnancy outcomes, low-quality evidence suggests that clinical pregnancy rates may increase. Therefore, the focus in the future will be on developing more viable treatment options to prevent or treatment of male reproductive system dysfunction and achieve the purpose of improving fertility. Interestingly, natural products, as the potential inhibitors for the treatment of male reproductive system dysfunction, have shown a good therapeutic effect. Among many natural products, flavonoids have been extensively investigated for the treatment of male reproductive system dysfunction, such as testicular structural disruption, spermatogenesis disturbance and sperm quality decline. Flavonoids have been reported to have antioxidant, anti-inflammatory, immune stimulating, anti-apoptotic, anticarcinogenic, anti-allergic and antiviral activities, investigating for the treatment of male reproductive system dysfunction. In this review, we evaluate the therapeutic effects of flavonoids on male reproductive system dysfunction under different cellular scenarios and summarize the therapeutic strategies of flavonoids based on the aforementioned retrospective analysis. In the end, we describe some perspective research areas relevant to the application of flavonoids in the treatment of male reproductive system dysfunction.
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