1
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Kallman TF, Bäckryd E. The effects of opioid tapering on select endocrine measures in men and women with head and neck cancer-a longitudinal 12-month study. Pain Rep 2024; 9:e1183. [PMID: 39285953 PMCID: PMC11404959 DOI: 10.1097/pr9.0000000000001183] [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: 03/22/2024] [Revised: 05/31/2024] [Accepted: 07/06/2024] [Indexed: 09/19/2024] Open
Abstract
Introduction Opioid treatment may affect endocrine measures in humans either through centrally or peripherally mediated mechanisms. There is a general lack of longitudinal studies examining endocrine measures in opioid-treated patients. Objectives To longitudinally follow the levels of select endocrine measures in men and women with head and neck cancer for 1 year, who after having completed radiotherapy began tapering opioids. Methods This was a prospective, longitudinal, observational study. Testosterone and estradiol were measured in men and women, respectively. Follicle-stimulating hormone (FSH), luteinizing hormone (LH), dehydroepiandrosterone sulfate (DHEAS), and prolactin were measured in both sexes. Women were grouped based on if premenopausal or postmenopausal. Samples were collected when opioid tapering started and at 1, 3, 6, and 12 months after tapering start. Daily opioid doses at the same time points were registered. Results Twenty-five men and 12 women were followed for 12 months. In men, testosterone levels increased significantly during the first month after opioid tapering started (P < 0.001). Levels of testosterone, FSH, DHEAS, and prolactin changed significantly in men during the study period. A moderate correlation between opioid dose reduction and testosterone level increase in men aged ≤60 years was found (r s = -0.577, 95% CI -0.854 to -0.044, P = 0.039). In postmenopausal women (n = 10), levels of FSH and LH changed significantly during the study period. Conclusion Previously known effects of opioids on endocrine measures in humans seem to be reversible as select endocrine measures changed significantly in men and postmenopausal women after opioid tapering was initiated.
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Affiliation(s)
- Thomas F Kallman
- Pain and Rehabilitation Center, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Emmanuel Bäckryd
- Pain and Rehabilitation Center, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
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2
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Wu YC, Sung WW. Clomiphene Citrate Treatment as an Alternative Therapeutic Approach for Male Hypogonadism: Mechanisms and Clinical Implications. Pharmaceuticals (Basel) 2024; 17:1233. [PMID: 39338395 DOI: 10.3390/ph17091233] [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: 08/11/2024] [Revised: 09/11/2024] [Accepted: 09/15/2024] [Indexed: 09/30/2024] Open
Abstract
Male hypogonadism, which is characterized by low testosterone levels, has a significant impact on male sexual function, overall health, and fertility. Testosterone replacement therapy (TRT) is the conventional treatment for this condition, but it has potential adverse effects and is not suitable for men seeking to conceive. Testosterone plays an essential role in male sexual function, metabolism, mood, and overall well-being. Clomiphene citrate, a drug originally developed for female infertility, has recently gained attention as an off-label treatment for male hypogonadism. By blocking the negative feedback of estrogen on the hypothalamus and pituitary glands, clomiphene stimulates gonadotropin secretion, leading to increased endogenous testosterone production, which, in turn, improves sperm parameters and fertility and alleviates the symptoms of hypogonadism. Regarding the safety profile of clomiphene compared with TRT, clomiphene appears to confer a lower risk than TRT, which is associated with adverse effects such as polycythemia. Furthermore, combination therapy with clomiphene and anastrozole or human chorionic gonadotropin has been investigated as a potential approach to enhancing the effectiveness of treatments for improving hypogonadism symptoms. In conclusion, clomiphene citrate may offer a promising alternative to TRT for men with hypogonadism, particularly those desiring fertility preservations. However, its long-term efficacy and safety remain inadequately understood. Future research should focus on exploring the benefits of combination therapies and personalized treatment strategies based on individual patient characteristics.
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Affiliation(s)
- Yao-Cheng Wu
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Wen-Wei Sung
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
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3
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Jang S, Ryder JR, Kelly AS, Bomberg EM. Association between endogenous sex hormones and adiposity in youth across a weight status spectrum. Pediatr Res 2024:10.1038/s41390-024-03578-6. [PMID: 39294241 DOI: 10.1038/s41390-024-03578-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 07/29/2024] [Accepted: 09/05/2024] [Indexed: 09/20/2024]
Abstract
BACKGROUND While endogenous sex hormones (e.g., testosterone, estradiol) are important factors regulating adipose tissue distribution, studies evaluating such relationships in youth across a wide weight status spectrum are limited. METHODS We performed a cross-sectional analysis of 8-21-year-old youth. Multiple linear regression models were used to evaluate associations between sex hormones and adiposity measures (android/gynoid ratio (A/G), total fat mass (FM), visceral adipose tissue (VAT), waist circumference (WC)) and total lean mass (LM), adjusting for pubertal stage and race/ethnicity, and stratified by sex and weight status. RESULTS Among 342 youth, the mean age was 13.0 ± 2.8 years old (52.6% female; 38.9% normal weight [NW]; 27.8% overweight/obesity [OW/OB]; 33.3% severe obesity [SO]). Testosterone was positively associated with LM among males with NW (1462 g, 95% CI: 255-2668 g) and OW/OB (3792 g, 95% CI: 1244-6340 g), with A/G and WC among males with NW (0.01, 95% CI: 0-0.2 and 10 mm, 95% CI: 4-16 mm, respectively), and negatively associated with WC among males with SO (-43 mm, -81 to -5 mm). Estradiol was positively associated with A/G, FM, and WC among males with SO, and VAT in females with NW. CONCLUSION Our findings showed that sex hormones were associated with adipose tissue deposition in youth across the weight spectrum. IMPACT STATEMENT Sex hormones (e.g., testosterone, estradiol) are associated with various adiposity measures among male and female children and adolescents across a weight status spectrum. We evaluated associations between sex hormones and various adiposity measures among 8-21-year-olds across a weight status spectrum (normal weight, overweight/class 1 obesity, class 2-3 obesity). We found that estradiol was positively associated with total fat mass, android/gynoid ratio, and waist circumference in males with class 2-3 obesity, and testosterone was positively associated with lean mass in males with normal weight and overweight/class 1 obesity. Sex hormones may influence, or may be influenced by, adiposity in youth.
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Affiliation(s)
- Subin Jang
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA.
- Center for Pediatric Obesity Medicine, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA.
| | - Justin R Ryder
- Department of Surgery, Lurie Children's Hospital, Chicago, IL, USA
| | - Aaron S Kelly
- Center for Pediatric Obesity Medicine, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Eric M Bomberg
- Center for Pediatric Obesity Medicine, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
- Division of Endocrinology, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
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4
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Allahverdiyeva S, Geyer CE, Veth J, de Vries LM, de Taeye SW, van Gils MJ, den Dunnen J, Chen HJ. Testosterone and estradiol reduce inflammation of human macrophages induced by anti-SARS-CoV-2 IgG. Eur J Immunol 2024:e2451226. [PMID: 39246165 DOI: 10.1002/eji.202451226] [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: 04/29/2024] [Revised: 08/24/2024] [Accepted: 08/27/2024] [Indexed: 09/10/2024]
Abstract
COVID-19, the disease caused by SARS-CoV-2, particularly causes severe inflammatory disease in elderly, obese, and male patients. Since both aging and obesity are associated with decreased testosterone and estradiol expression, we hypothesized that decreased hormone levels contribute to excessive inflammation in the context of COVID-19. Previously, we and others have shown that hyperinflammation in severe COVID-19 patients is induced by the production of pathogenic anti-spike IgG antibodies that activate alveolar macrophages. Therefore, we developed an in vitro assay in which we stimulated human macrophages with viral stimuli, anti-spike IgG immune complexes, and different sex hormones. Treatment with levels of testosterone reflecting young adults led to a significant reduction in TNF and IFN-γ production by human macrophages. In addition, estradiol significantly attenuated the production of a very broad panel of cytokines, including TNF, IL-1β, IL-6, IL-10, and IFN-γ. Both testosterone and estradiol reduced the expression of Fc gamma receptors IIa and III, the two main receptors responsible for anti-spike IgG-induced inflammation. Combined, these findings indicate that sex hormones reduce the inflammatory response of human alveolar macrophages to specific COVID-19-associated stimuli, thereby providing a potential immunological mechanism for the development of severe COVID-19 in both older male and female patients.
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Affiliation(s)
- Sona Allahverdiyeva
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
- Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Chiara E Geyer
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jennifer Veth
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Laura M de Vries
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Steven W de Taeye
- Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Marit J van Gils
- Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jeroen den Dunnen
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Hung-Jen Chen
- Center for Experimental and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, Amsterdam, the Netherlands
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5
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Lv ZM, Liu C, Wang P, Chen YH. Dysregulation of mitochondrial dynamics and mitophagy are involved in high-fat diet-induced steroidogenesis inhibition. J Lipid Res 2024; 65:100639. [PMID: 39236859 DOI: 10.1016/j.jlr.2024.100639] [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: 03/05/2024] [Revised: 08/06/2024] [Accepted: 08/19/2024] [Indexed: 09/07/2024] Open
Abstract
Male obesity is a pandemic health issue and can disrupt testicular steroidogenesis. Here, we explored the mechanism by which a high-fat diet (HFD) induced steroidogenic inhibition. As expected, HFD induced lipid droplet accumulation and reduced the expression of StAR, P450scc, and 3β-HSD, three steroidogenic enzymes, in mouse testes. Palmitic acid (PA), a saturated fatty acid usually used to trigger lipotoxicity in vitro, induced greater accumulation of lipid droplets and the downregulation of steroidogenic enzymes in TM3 cells. Mechanistically, both HFD and PA disturbed mitochondrial fusion/fission dynamics and then induced mitochondrial dysfunction and mitophagy inhibition in mouse Leydig cells. Additionally, mitochondrial fusion promoter M1 attenuated PA-induced imbalance of mitochondrial dynamics, mitophagy inhibition, mitochondrial reactive oxygen species (ROS) production, and mitochondrial dysfunction in TM3 cells. Mitofusin 2 (Mfn2) knock-down further aggravated the PA-induced imbalance of mitochondrial dynamics, mitochondrial ROS production, and mitochondrial dysfunction in TM3 cells. Importantly, M1 rescued PA-induced downregulation of steroidogenic enzymes, whereas Mfn2 knock-down further aggravated PA-induced downregulation of steroidogenic enzymes in TM3 cells. Overall, our results provide laboratory evidence that mitochondrial dysfunction and mitophagy inhibition caused by dysregulation of mitochondrial fusion may be involved in HFD-induced steroidogenesis inhibition in mouse Leydig cells.
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Affiliation(s)
- Zheng-Mei Lv
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
| | - Chao Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Ping Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China; Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
| | - Yuan-Hua Chen
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
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6
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Bennett JP, Prado CM, Heymsfield SB, Shepherd JA. Evaluation of visceral adipose tissue thresholds for elevated metabolic syndrome risk across diverse populations: A systematic review. Obes Rev 2024; 25:e13767. [PMID: 38761009 DOI: 10.1111/obr.13767] [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: 11/09/2023] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 05/20/2024]
Abstract
Beyond obesity, excess levels of visceral adipose tissue (VAT) significantly contribute to the risk of developing metabolic syndrome (MetS), although thresholds for increased risk vary based on population, regions of interest, and units of measure employed. We sought to determine whether a common threshold exists that is indicative of heightened MetS risk across all populations, accounting for sex, age, BMI, and race/ethnicity. A systematic literature review was conducted in September 2023, presenting threshold values for elevated MetS risk. Standardization equations harmonized the results from DXA, CT, and MRI systems to facilitate a comparison of threshold variations across studies. A total of 52 papers were identified. No single threshold could accurately indicate elevated risk for both males and females across varying BMI, race/ethnicity, and age groups. Thresholds fluctuated from 70 to 165.9 cm2, with reported values consistently lower in females. Generally, premenopausal females and younger adults manifested elevated risks at lower VAT compared to their older counterparts. Notably, Asian populations exhibited elevated risks at lower VAT areas (70-136 cm2) compared to Caucasian populations (85.6-165.9 cm2). All considered studies reported associations of VAT without accommodating covariates. No single VAT area threshold for elevated MetS risk was discernible post-harmonization by technology, units of measure, and region of interest. This review summarizes available evidence for MetS risk assessment in clinical practice. Further exploration of demographic-specific interactions between VAT area and other risk factors is imperative to comprehensively delineate overarching MetS risk.
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Affiliation(s)
| | - Carla M Prado
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
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7
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Lin S, Cienfuegos S, Ezpeleta M, Pavlou V, Runchey MC, Varady KA. Effect of time restricted eating versus daily calorie restriction on sex hormones in males and females with obesity. Eur J Clin Nutr 2024; 78:814-817. [PMID: 38866976 DOI: 10.1038/s41430-024-01461-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/14/2024]
Abstract
This study examined the effects of time restricted eating (TRE) on sex hormones in males and females, versus daily calorie restriction (CR). Adults with obesity (n = 90) were randomized to 1 of 3 groups for 12-months: 8-h TRE (eating only between 12:00 to 8:00 pm, with no calorie counting); CR (25% energy restriction daily); or control. Body weight decreased (P < 0.01) in the TRE and CR groups, relative to controls, in males, premenopausal females, and postmenopausal females, by month 12. Total testosterone, dehydroepiandrosterone (DHEA), and sex hormone binding globulin (SHBG) levels did not change over time, or between groups, in males, premenopausal females, and postmenopausal females. Estradiol, estrone, and progesterone were only measured in postmenopausal females, and remained unchanged. These findings suggest that TRE produces significant weight loss but does not impact circulating sex hormone levels in males and females with obesity over 12 months, relative to CR and controls.
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Affiliation(s)
- Shuhao Lin
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - Sofia Cienfuegos
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - Mark Ezpeleta
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - Vasiliki Pavlou
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - Mary-Claire Runchey
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - Krista A Varady
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA.
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8
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Bartsch A, Anderson FL, Fredericson M, Sherman SL. Biomechanical and biological factors of sexual dimorphism in anterior knee pain: Current concepts. J ISAKOS 2024; 9:788-793. [PMID: 38908481 DOI: 10.1016/j.jisako.2024.05.014] [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: 08/29/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/24/2024]
Abstract
Female gender is one of the commonly mentioned risk factors for anterior knee pain (AKP), among a spectrum of other factors including anatomical, biomechanical, hormonal, behavioral and psychological elements contributing to its development. Despite the focus on individual risk factors, there's a notable gap in comprehending how gender influences and interacts with other risk factors. The objective of this review was to identify and emphasize the connections between these interactions, gender-related risk factors for AKP, and the potential mechanisms that explain their associations with other risk factors, aiming to aid in the creation of precise prevention and treatment approaches. Gender influences the majority of risk factors for AKP, including anatomical, biomechanical, hormonal, behavioral and psychological factors. Women have on average smaller patellae, higher patellofemoral cartilage stress and for AKP, disadvantageous trochlear morphology, ligament and muscle composition and unfavorable neuromuscular control pattern. In contrast, men show on average an increased ability to strengthen their hip external rotators, which are both protective against AKP. Particularly in kinetic and kinematic analysis, men have been shown to have a distinctly different risk factor profile than women. Sex hormones may also play a role in the risk of AKP, with estrogen potentially influencing ligamentous laxity, increasing midfoot loading and affecting neuromuscular control of the lower extremities and testosterone positively affecting muscle mass and strength. The higher incidence of AKP in women is likely due to a combination of slightly increased risk factors. Although all risk factors can be present in both men and women and the holistic evaluation of each individual's risk factor composition is imperative regardless of gender, knowing distinctive risk factors may help with focused evaluation, treatment and implementing preventive measures of AKP.
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Affiliation(s)
- Anna Bartsch
- Department of Orthopaedic Surgery, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA; Department of Physical Medicine and Rehabilitation, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA; Department of Orthopedics and Trauma Surgery, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland
| | - Forrest L Anderson
- Department of Orthopaedic Surgery, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA
| | - Michael Fredericson
- Department of Orthopaedic Surgery, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA; Department of Physical Medicine and Rehabilitation, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA
| | - Seth Lawrence Sherman
- Department of Orthopaedic Surgery, Stanford University School of Medicine, 430 Broadway, Pavilion C, Redwood City, CA 94063, USA.
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Wu L, Qu J, Mou L, Liu C. Apigenin improves testosterone synthesis by regulating endoplasmic reticulum stress. Biomed Pharmacother 2024; 177:117075. [PMID: 38964181 DOI: 10.1016/j.biopha.2024.117075] [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: 04/07/2024] [Revised: 06/20/2024] [Accepted: 06/29/2024] [Indexed: 07/06/2024] Open
Abstract
Obesity is a growing epidemic among reproductive-age men, which can cause and exacerbate male infertility by means of associated comorbidities, endocrine abnormalities, and direct effects on the fidelity and throughput of spermatogenesis. A prominent consequence of male obesity is a reduction in testosterone levels. Natural products have shown tremendous potential anti-obesity effects in metabolic diseases. This study aimed to investigate the potential of apigenin (AP) to alleviate testicular dysfunction induced by a high-fat diet (HFD) and to investigate the underlying mechanisms, focusing on endoplasmic reticulum stress (ERS) and testosterone synthesis. A murine model of obesity was established using HFD-fed mice. The effects of AP on obesity, lipid metabolism, testicular dysfunction, and ERS were assessed through various physiological, histological, and molecular techniques. Administration of AP (10 mg/kg) ameliorated HFD-induced obesity and testicular dysfunction in a mouse model, as evidenced by decreased body weight, improved lipid profiles and testicular pathology, and restored protein levels related to testosterone. Furthermore, in vitro studies demonstrated that AP relieved ERS and recovered testosterone synthesis in murine Leydig cells (TM3) treated with free fatty acids (FFAs). It was also observed that AP rescued testosterone synthesis enzymes in TM3 cells, similar to that observed with the inhibitor of the PERK pathway (GSK2606414). In addition, ChIP, qPCR, and gene silencing showed that the C/EBP homologous protein (CHOP) bound directly to the promoter region of steroidogenic STAR and negatively modulated its expression. Collectively, AP has remarkable potential to alleviate HFD-induced obesity and testicular dysfunction. Its protective effects are attributable partly to mitigating ERS and restoring testosterone synthesis in Leydig cells.
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Affiliation(s)
- Liling Wu
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 401120, China; Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, China; Department of Pharmacy, Nanchong Central Hospital, The Second Clinical School of North Sichuan Medical College, Nanchong, Sichuan 637000, China; Nanchong Key Laboratory of Individualized Drug Therapy, Nanchong, Sichuan 637000, China
| | - Jiayuan Qu
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 401120, China
| | - Li Mou
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 401120, China
| | - Changjiang Liu
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 401120, China.
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10
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De Lorenzo A, Itani L, El Ghoch M, Gualtieri P, Frank G, Raffaelli G, Pellegrini M, Di Renzo L. Difference in Body Composition Patterns between Age Groups in Italian Individuals with Overweight and Obesity: When BMI Becomes a Misleading Tool in Nutritional Settings. Nutrients 2024; 16:2415. [PMID: 39125296 PMCID: PMC11314337 DOI: 10.3390/nu16152415] [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: 07/02/2024] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 08/12/2024] Open
Abstract
Little is known about the changes in body composition (BC) in people with overweight or obesity. The aim of this study was to assess the differences in BC patterns in this population based on gender and age. A total of 2844 Italian adults of mixed gender and a body mass index (BMI) of ≥25 kg/m2 underwent a BC assessment by means of dual-energy X-ray absorptiometry (DXA). The sample was categorized into three age groups: 'young' (20-39 years), 'middle' (40-59 years), and 'older' (60-80 years) adults, after being matched by body weight and BMI. Males showed higher total body fat percentage (BF%) and a lower total lean mass (LM), progressively from the young to the middle to the older age groups, while females showed similar values for these total compartments between the three age groups. However, in both genders, participants in the middle and older groups were more likely to have a higher trunk fat percentage by +1.23% to +4.21%, and lower appendicular lean mass (ALM) by -0.81 kg to -2.63 kg with respect to the young group, indicating expression of major central adiposity and sarcopenia. While our findings underscore the limitations of BMI to detect these differences between age groups, the identification of new tools suitable for this aim is greatly needed in this population. Moreover, further investigation that clarifies the impact of these differences in BC patterns between gender and age groups on health outcomes is also required.
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Affiliation(s)
- Antonino De Lorenzo
- Section of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (A.D.L.); (L.D.R.)
| | - Leila Itani
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, Riad El Solh, Beirut 11072809, Lebanon;
| | - Marwan El Ghoch
- Center for the Study of Metabolism, Body Composition and Lifestyle, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy;
| | - Paola Gualtieri
- Section of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (A.D.L.); (L.D.R.)
| | - Giulia Frank
- PhD School of Applied Medical-Surgical Sciences, University of Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (G.F.); (G.R.)
| | - Glauco Raffaelli
- PhD School of Applied Medical-Surgical Sciences, University of Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (G.F.); (G.R.)
| | - Massimo Pellegrini
- Center for the Study of Metabolism, Body Composition and Lifestyle, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy;
| | - Laura Di Renzo
- Section of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (A.D.L.); (L.D.R.)
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11
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Koceva A, Herman R, Janez A, Rakusa M, Jensterle M. Sex- and Gender-Related Differences in Obesity: From Pathophysiological Mechanisms to Clinical Implications. Int J Mol Sci 2024; 25:7342. [PMID: 39000449 PMCID: PMC11242171 DOI: 10.3390/ijms25137342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/26/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024] Open
Abstract
Obesity, primarily characterized by excessive fat accumulation, is a multifactorial chronic disease with an increasing global prevalence. Despite the well-documented epidemiology and significant advances in understanding its pathophysiology and clinical implications, the impact of sex is typically overlooked in obesity research. Worldwide, women have a higher likelihood to become obese compared to men. Although women are offered weight loss interventions more often and at earlier stages than men, they are more vulnerable to psychopathology. Men, on the other hand, are less likely to pursue weight loss intervention and are more susceptible to the metabolic implications of obesity. In this narrative review, we comprehensively explored sex- and gender-specific differences in the development of obesity, focusing on a variety of biological variables, such as body composition, fat distribution and energy partitioning, the impact of sex steroid hormones and gut microbiota diversity, chromosomal and genetic variables, and behavioural and sociocultural variables influencing obesity development in men and women. Sex differences in obesity-related comorbidities and varying effectiveness of different weight loss interventions are also extensively discussed.
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Affiliation(s)
- Andrijana Koceva
- Department of Endocrinology and Diabetology, University Medical Center Maribor, 2000 Maribor, Slovenia
- Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
| | - Rok Herman
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Andrej Janez
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Matej Rakusa
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Mojca Jensterle
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
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12
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Beaudry K, De Lisio M. Sex-Based Differences in Muscle Stem Cell Regulation Following Exercise. Exerc Sport Sci Rev 2024; 52:87-94. [PMID: 38445901 DOI: 10.1249/jes.0000000000000337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Sexual dimorphism, driven by the sex hormones testosterone and estrogen, influences body composition, muscle fiber type, and inflammation. Research related to muscle stem cell (MuSC) responses to exercise has mainly focused on males. We propose a novel hypothesis that there are sex-based differences in MuSC regulation following exercise, such that males have more MuSCs, whereas females demonstrate a greater capacity for regeneration.
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Affiliation(s)
- Kayleigh Beaudry
- School of Human Kinetics , Department of Cellular and Molecular Medicine, Regenerative Medicine Program, Centre on Neuromuscular Disease , University of Ottawa, Ottawa, Ontario, Canada
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13
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Kim KJ, Lee JH, Kim SJ, Yu BY, Kang JH. Relationship between Serum Total Testosterone Concentration and Metabolic Syndrome in Premenopausal Obese Women. Korean J Fam Med 2024; 45:215-222. [PMID: 38414373 PMCID: PMC11273172 DOI: 10.4082/kjfm.23.0089] [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: 06/21/2023] [Revised: 10/10/2023] [Accepted: 11/03/2023] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Men with low testosterone levels are at an increased risk of developing metabolic syndrome, irrespective of age or obesity. However, the relationship between metabolic syndrome and testosterone levels in women remains unclear. We compared the total testosterone concentrations between premenopausal obese women with and without metabolic syndrome and identified the factors affecting these concentrations. METHODS A single-center retrospective analysis was conducted using the medical records of 580 premenopausal women with obesity. The diagnostic criteria for metabolic syndrome were established using the National Cholesterol Education Program Adult Treatment Panel III guidelines. RESULTS The mean±standard deviation age, weight, and body mass index were 38.8±8.4 years, 78.0±11.8 kg, and 30.0±4.1 kg/m2, respectively. The mean total testosterone concentration was lower in the metabolic syndrome group than in the non-metabolic syndrome group (n=385 vs. n=195; 0.22±0.10 ng/mL vs. 0.24±0.11 ng/mL; P<0.001). In a model adjusted for age, body mass index, skeletal muscle mass, body fat mass, and body fat percentage, the odds ratio for metabolic syndrome with respect to the total testosterone level was 0.128 (P=0.028). Testosterone concentration was negatively correlated with age (r=-0.334), systolic blood pressure (r=-0.084), and triglyceride concentration (r=-0.093) but positively correlated with weight (r=0.144), body mass index (r=0.140), waist circumference (r=0.133), body fat mass (r=0.167), and body fat percentage (r=0.167). Stepwise regression analysis revealed that age (β=-0.004, P<0.001), body mass index (β=0.003, P=0.004), and high-density lipoprotein cholesterol concentration (β=0.001, P=0.019) were independently associated with total testosterone concentration (adjusted R2=12.6%). CONCLUSION Metabolic syndrome and obesity may be independently associated with testosterone levels in premenopausal women with obesity.
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Affiliation(s)
- Kyu-Jin Kim
- Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Jun-Ho Lee
- Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Seong-Ju Kim
- Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Byung-Yeon Yu
- Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Jee-Hyun Kang
- Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
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14
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Liu D, Li Y, Ji N, Xia W, Zhang B, Feng X. Association between weight-adjusted waist index and testosterone deficiency in adult American men: findings from the national health and nutrition examination survey 2013-2016. BMC Public Health 2024; 24:1683. [PMID: 38915014 PMCID: PMC11197353 DOI: 10.1186/s12889-024-19202-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/19/2024] [Indexed: 06/26/2024] Open
Abstract
BACKGROUND Testosterone deficiency (TD) and obesity are globally recognized health concerns, with a bidirectional causal relationship between them. And a newly discovered obesity indicator, the Weight-Adjusted-Waist Index (WWI), has been proposed, demonstrating superior adiposity identification capability compared to traditional body mass index (BMI) and waist circumference (WC) indicators. Therefore, we present the inaugural investigation into the associations of WWI with total testosterone levels and the risk of TD. METHODS Data restricted to the National Health and Nutrition Examination Survey (NHANES) between 2013 and 2016 were analyzed. Only males aged > 20 years who completed body measures and underwent serum sex hormone testing were potentially eligible for analysis. Weighted multivariable linear regression and logistic regression analyses were employed to investigate the relationships between WWI and total testosterone levels, and the risk of TD, respectively. Smooth curve fittings and weighted generalized additive model (GAM) regression were conducted to examine the linear relationship among them. Additionally, subgroup analyses with interaction tests were performed to assess the stability of the results. RESULTS Finally, a total of 4099 participants with complete data on testosterone and WWI were included in the formal analysis. The mean age of study participants was 46.74 ± 0.35 years with a TD prevalence of 25.54%. After adjusting all potential confounders, the continuous WWI displayed a negative linear relationship with total testosterone levels (β=-61.41, 95%CI: -72.53, -50.29, P < 0.0001) and a positive linear relationship with risk of TD (OR = 1.88, 95%CI: 1.47, 2.39, P < 0.0001). When WWI was transformed into quartiles as a categorical variable, participants in Q4 exhibited lower total testosterone levels (β=-115.4, 95%CI: -142.34, -88.45, P < 0.0001) and a higher risk of TD (OR = 3.38, 95% CI: 2.10, 5.44, P < 0.001). These associations remained stable in subgroup analyses without significant interaction (all P for interaction > 0.05). CONCLUSIONS This investigation firstly unveiled a negative linear association between WWI and total testosterone levels, coupled with a positive linear relationship with the prevalence of TD in U.S. male adults aged 20 years and older. Further studies are needed to validate the potential utility of WWI for the early identification and timely intervention of TD.
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Affiliation(s)
- Dalu Liu
- Department of General Surgery, The Affiliated Chuzhou Hospital of Anhui Medical University (The First People's Hospital of Chuzhou), Chuzhou, Anhui, China.
| | - Yuanyuan Li
- Department of General Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Nuo Ji
- Department of Urology, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Wei Xia
- Department of Urology, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Bo Zhang
- Department of Urology, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xingliang Feng
- Department of Urology, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China.
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
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15
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Chakrabarty A, Chakraborty S, Nandi D, Basu A. Multivariate genetic architecture reveals testosterone-driven sexual antagonism in contemporary humans. Proc Natl Acad Sci U S A 2024; 121:e2404364121. [PMID: 38833469 PMCID: PMC11181031 DOI: 10.1073/pnas.2404364121] [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: 03/01/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Sex difference (SD) is ubiquitous in humans despite shared genetic architecture (SGA) between the sexes. A univariate approach, i.e., studying SD in single traits by estimating genetic correlation, does not provide a complete biological overview, because traits are not independent and are genetically correlated. The multivariate genetic architecture between the sexes can be summarized by estimating the additive genetic (co)variance across shared traits, which, apart from the cross-trait and cross-sex covariances, also includes the cross-sex-cross-trait covariances, e.g., between height in males and weight in females. Using such a multivariate approach, we investigated SD in the genetic architecture of 12 anthropometric, fat depositional, and sex-hormonal phenotypes. We uncovered sexual antagonism (SA) in the cross-sex-cross-trait covariances in humans, most prominently between testosterone and the anthropometric traits - a trend similar to phenotypic correlations. 27% of such cross-sex-cross-trait covariances were of opposite sign, contributing to asymmetry in the SGA. Intriguingly, using multivariate evolutionary simulations, we observed that the SGA acts as a genetic constraint to the evolution of SD in humans only when selection is sexually antagonistic and not concordant. Remarkably, we found that the lifetime reproductive success in both the sexes shows a positive genetic correlation with anthropometric traits, but not with testosterone. Moreover, we demonstrated that genetic variance is depleted along multivariate trait combinations in both the sexes but in different directions, suggesting absolute genetic constraint to evolution. Our results indicate that testosterone drives SA in contemporary humans and emphasize the necessity and significance of using a multivariate framework in studying SD.
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Affiliation(s)
- Anasuya Chakrabarty
- Biotechnology Research Innovation Council-National Institute of Biomedical Genomics, Kalyani741251, West Bengal, India
| | - Saikat Chakraborty
- Biotechnology Research Innovation Council-National Institute of Biomedical Genomics, Kalyani741251, West Bengal, India
- Biostatistics Division, Global Capability Center, GlaxoSmithKline India Global Service Private Limited, Bangalore560037, India
| | - Diptarup Nandi
- Biotechnology Research Innovation Council-National Institute of Biomedical Genomics, Kalyani741251, West Bengal, India
- School of Arts and Sciences, Azim Premji University, Bengaluru562125, Karnataka, India
| | - Analabha Basu
- Biotechnology Research Innovation Council-National Institute of Biomedical Genomics, Kalyani741251, West Bengal, India
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16
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Welsh A, Hammad M, Piña IL, Kulinski J. Obesity and cardiovascular health. Eur J Prev Cardiol 2024; 31:1026-1035. [PMID: 38243826 PMCID: PMC11144464 DOI: 10.1093/eurjpc/zwae025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/06/2024] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
Obesity has risen to epidemic levels worldwide over the past few decades and has become a huge global health burden owing to its direct contribution to the development of some of the most prevalent chronic diseases including diabetes, hypertension, hyperlipidaemia, and other cardiovascular diseases. Obesity is a disease of positive energy balance resulting from complex interactions between abnormal neurohumoral responses and an individual's socioeconomic, environmental, behavioural, and genetic factors leading to a state of chronic inflammation. Understanding the complex nature of the disease is crucial in determining the best approach to combat its rising numbers. Despite recent advancements in pharmacological therapy for the treatment of obesity, reversing weight gain and maintaining weight loss is challenging due to the relapsing nature of the disease. Prevention, therefore, remains the key which needs to start in utero and continued throughout life. This review summarizes the role obesity plays in the pathophysiology of various cardiovascular diseases both by directly affecting endothelial and myocyte function and indirectly by enhancing major cardiovascular risk factors like diabetes, hypertension, and hyperlipidaemia. We highlight the importance of a holistic approach needed to prevent and treat this debilitating disease. Particularly, we analyse the effects of plant-based diet, regular exercise, and non-exercise activity thermogenesis on obesity and overall cardiorespiratory fitness. Moreover, we discuss the significance of individualizing obesity management with a multimodal approach including lifestyle modifications, pharmacotherapy, and bariatric surgery to tackle this chronic disease.
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Affiliation(s)
- Aimee Welsh
- Division of Cardiology, Medical College of Wisconsin, 8701 W. Watertown Plank Rd, Milwaukee, WI 53226, USA
| | - Muhammad Hammad
- Division of Cardiology, Medical College of Wisconsin, 8701 W. Watertown Plank Rd, Milwaukee, WI 53226, USA
| | - Ileana L Piña
- Division of Cardiology, Thomas Jefferson University, 925 Chestnut Street, Philadelphia, PA 19107, USA
| | - Jacquelyn Kulinski
- Division of Cardiology, Medical College of Wisconsin, 8701 W. Watertown Plank Rd, Milwaukee, WI 53226, USA
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17
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Zhang M, Zhang J, Cui Y, Xing Z. Predictive power of lipid-related indicators for testosterone deficiency: a comparative analysis, NHANES 2011-2016. Int Urol Nephrol 2024; 56:1825-1833. [PMID: 38280934 DOI: 10.1007/s11255-023-03935-0] [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: 11/14/2023] [Accepted: 12/27/2023] [Indexed: 01/29/2024]
Abstract
BACKGROUND Studies have shown that lipid-related indicators are associated with testosterone deficiency. However, it is difficult to determine which indicator is the most accurate predictor of testosterone deficiency. We aimed to identify the lipid-related indicators most predictive of testosterone deficiency in adults in the United States. METHODS This observational research was conducted on a population aged ≥ 20 years. By plotting the receiver operating characteristic curve (ROC) and obtaining the corresponding area under the curve (AUC) value, we assessed the predictive capacity of TyG, WTI, LAP, and VAI for testosterone deficiency. We compared the area under the curve (AUC) values of these measures to determine if there were any statistically significant differences. The relationship between lipid-related indices and testosterone hormones was investigated using regression modeling, eXtreme Gradient Boosting (XGBoost) modeling, and sensitivity analysis. RESULTS A total of 3,272 eligible participants were included in the study. Testosterone deficiency was found to exist in 20.63% of the participants. Subjects with higher lipid-related markers were more likely to have lower testosterone levels. LAP was the best predictor of testosterone deficiency in ROC analysis over other indicators (AUC = 0.7176, (95% CI: 0.6964-0.7389)). CONCLUSION LAP is the most straightforward and convenient indicator for identifying testosterone deficiency in clinical practice.
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Affiliation(s)
- Mengyu Zhang
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical School, Central South University, Haikou, 570208, China
| | - Jiankang Zhang
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical School, Central South University, Haikou, 570208, China
| | - Yunzhi Cui
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical School, Central South University, Haikou, 570208, China
| | - Zengshu Xing
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical School, Central South University, Haikou, 570208, China.
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18
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Leite PLDA, Maciel LA, da Silva Aguiar S, Sousa CV, Neves RVP, de Sousa Neto IV, Campbell Simões L, Rosa TDS, Simões HG. Systemic Sirtuin 1 as a Potential Target to Mediate Interactions Between Body Fat and Testosterone Concentration in Master Athletes. J Aging Phys Act 2024; 32:438-445. [PMID: 38417433 DOI: 10.1123/japa.2023-0193] [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: 06/12/2023] [Revised: 10/19/2023] [Accepted: 12/28/2023] [Indexed: 03/01/2024]
Abstract
Evidence indicates that master athletes have higher concentration of Sirtuin 1 (Sirt1), lower body fat (BF), and greater activity of the hypothalamic-pituitary-gonadal axis in comparison to untrained peers. However, no published data have demonstrated possible mediation effect of Sirt1 in the interaction of BF and testosterone in this population. Therefore, this study compared and verified possible associations between Sirt1, BF, fat mass index (FMI), testosterone, luteinizing hormone (LH), and testosterone/luteinizing hormone (T/LH) ratio in middle-aged master athletes (n = 54; 51.22 ± 7.76 years) and control middle-aged peers (n = 21; 47.76 ± 8.47 years). Venous blood was collected for testosterone, LH, and Sirt1. BF was assessed through skinfold protocol. Although LH concentration did not differ between groups, master athletes presented higher concentration of Sirt1, testosterone, and T/LH ratio, and lower BF and FMI in relation to age-matched nonathletes. Moreover, Sirt1 correlated positively with testosterone and T/LH ratio, negatively with BF, and was not significantly correlated with LH (mediation analysis revealed the effect of BF on testosterone is mediated by Sirt1 and vice versa; R2 = .1776; p = .032). In conclusion, master athletes have higher testosterone, T/LH ratio, and Sirt1, and lower BF and FMI in relation to untrained peers. Furthermore, Sirt1 was negatively associated with BF and positively associated with testosterone and T/LH ratio. These findings suggest that increased circulating Sirt1, possibly due to the master athlete's training regimens and lifestyle, exhibits a potential mediation effect on the interaction between endocrine function and body composition.
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Affiliation(s)
- Patricio Lopes de Araújo Leite
- Graduate Program in Physical Activity, Health, and Human Performance, Catholic University of Brasilia, Taguatinga, Brazil
| | - Larissa Alves Maciel
- Graduate Program in Physical Activity, Health, and Human Performance, Catholic University of Brasilia, Taguatinga, Brazil
| | - Samuel da Silva Aguiar
- Physical Education Department, University Centre of the Federal District, Brasilia, Brazil
| | - Caio Victor Sousa
- Department of Health and Human Sciences, Loyola Marymount University, Los Angeles, CA, USA
| | - Rodrigo Vanerson Passos Neves
- Graduate Program in Physical Activity, Health, and Human Performance, Catholic University of Brasilia, Taguatinga, Brazil
| | - Ivo Vieira de Sousa Neto
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | | | - Thiago Dos Santos Rosa
- Graduate Program in Physical Activity, Health, and Human Performance, Catholic University of Brasilia, Taguatinga, Brazil
| | - Herbert Gustavo Simões
- Graduate Program in Physical Activity, Health, and Human Performance, Catholic University of Brasilia, Taguatinga, Brazil
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19
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Zhang S, Yang B, Shen X, Chen H, Wang F, Tan Z, Ou W, Yang C, Liu C, Peng H, Luo P, Peng L, Lei Z, Yan S, Wang T, Ke Q, Deng C, Xiang AP, Xia K. AAV-mediated gene therapy restores natural fertility and improves physical function in the Lhcgr-deficient mouse model of Leydig cell failure. Cell Prolif 2024:e13680. [PMID: 38817099 DOI: 10.1111/cpr.13680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 05/07/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
Leydig cell failure (LCF) caused by gene mutations leads to testosterone deficiency, infertility and reduced physical function. Adeno-associated virus serotype 8 (AAV8)-mediated gene therapy shows potential in treating LCF in the Lhcgr-deficient (Lhcgr-/-) mouse model. However, the gene-treated mice still cannot naturally sire offspring, indicating the modestly restored testosterone and spermatogenesis in AAV8-treated mice remain insufficient to support natural fertility. Recognizing this, we propose that enhancing gene delivery could yield superior results. Here, we screened a panel of AAV serotypes through in vivo transduction of mouse testes and identified AAVDJ as an impressively potent vector for testicular cells. Intratesticular injection of AAVDJ achieved markedly efficient transduction of Leydig cell progenitors, marking a considerable advance over conventional AAV8 vectors. AAVDJ-Lhcgr gene therapy was well tolerated and resulted in significant recovery of testosterone production, substantial improvement in sexual development, and remarkable restoration of spermatogenesis in Lhcgr-/- mice. Notably, this therapy restored fertility in Lhcgr-/- mice through natural mating, enabling the birth of second-generation. Additionally, this treatment led to remarkable improvements in adipose, muscle, and bone function in Lhcgr-/- mice. Collectively, our findings underscore AAVDJ-mediated gene therapy as a promising strategy for LCF and suggest its broader potential in addressing various reproductive disorders.
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Affiliation(s)
- Suyuan Zhang
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Bin Yang
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaoting Shen
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, The Key Laboratory for Reproductive Medicine of Guangdong Province, Guangzhou, Guangdong, China
| | - Hong Chen
- Center for Stem Cells Translational Medicine, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, Guangdong, China
- Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Fulin Wang
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhipeng Tan
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wangsheng Ou
- State Key Laboratory of Ophthalmology, Zhong Shan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Cuifeng Yang
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Congyuan Liu
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hao Peng
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Peng Luo
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, The Key Laboratory for Reproductive Medicine of Guangdong Province, Guangzhou, Guangdong, China
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Limei Peng
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhenmin Lei
- Department of OB/GYN and Women's Health, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Sunxing Yan
- Guangzhou Cellgenes Biotechnology Co.,Ltd., Guangzhou, Guangdong, China
| | - Tao Wang
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qiong Ke
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chunhua Deng
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Andy Peng Xiang
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Kai Xia
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
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20
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Ranjbar S, Akinsiku O, Hefner M, Jafari F, Kudchadkar G, Zaroudi M, Nathan AN, Booe H, Dhurandhar NV. Management of obesities with a cause specific approach. Int J Obes (Lond) 2024:10.1038/s41366-024-01539-x. [PMID: 38769423 DOI: 10.1038/s41366-024-01539-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/22/2024]
Affiliation(s)
- S Ranjbar
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - O Akinsiku
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - M Hefner
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - F Jafari
- Department of Nutritional Sciences, Penn State University, University Park, PA, USA
| | - G Kudchadkar
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - M Zaroudi
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - A N Nathan
- Center for Community Health Impact, University of Texas Health Sciences Center at Houston, El Paso, TX, USA
| | - H Booe
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA.
| | - N V Dhurandhar
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA.
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21
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Wang TT, Zhu HL, Ouyang KW, Wang H, Luo YX, Zheng XM, Ling Q, Wang KW, Zhang J, Chang W, Lu Q, Zhang YF, Yuan Z, Li H, Xiong YW, Wei T, Wang H. Environmental cadmium inhibits testicular testosterone synthesis via Parkin-dependent MFN1 degradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134142. [PMID: 38555669 DOI: 10.1016/j.jhazmat.2024.134142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/12/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Low testosterone (T) levels are associated with many common diseases, such as obesity, male infertility, depression, and cardiovascular disease. It is well known that environmental cadmium (Cd) exposure can induce T decline, but the exact mechanism remains unclear. We established a murine model in which Cd exposure induced testicular T decline. Based on the model, we found Cd caused mitochondrial fusion disorder and Parkin mitochondrial translocation in mouse testes. MFN1 overexpression confirmed that MFN1-dependent mitochondrial fusion disorder mediated the Cd-induced T synthesis suppression in Leydig cells. Further data confirmed Cd induced the decrease of MFN1 protein by increasing ubiquitin degradation. Testicular specific Parkin knockdown confirmed Cd induced the ubiquitin-dependent degradation of MFN1 protein through promoting Parkin mitochondrial translocation in mouse testes. Expectedly, testicular specific Parkin knockdown also mitigated testicular T decline. Mito-TEMPO, a targeted inhibitor for mitochondrial reactive oxygen species (mtROS), alleviated Cd-caused Parkin mitochondrial translocation and mitochondrial fusion disorder. As above, Parkin mitochondrial translocation induced mitochondrial fusion disorder and the following T synthesis repression in Cd-exposed Leydig cells. Collectively, our study elucidates a novel mechanism through which Cd induces T decline and provides a new treatment strategy for patients with androgen disorders.
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Affiliation(s)
- Tian-Tian Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Hua-Long Zhu
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Kong-Wen Ouyang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Hua Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Department of Respiratory Medicine, Anhui Provincial Children's Hospital, Hefei, Anhui 230000, China
| | - Ye-Xin Luo
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Xin-Mei Zheng
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Qing Ling
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Kai-Wen Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Jin Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Wei Chang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Qi Lu
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Yu-Feng Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Zhi Yuan
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Hao Li
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Yong-Wei Xiong
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Tian Wei
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Hua Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China.
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Lin S, Cienfuegos S, Ezpeleta M, Pavlou V, Runchey MC, Varady KA. Effect of time restricted eating versus daily calorie restriction on sex hormones in males and females with obesity. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.15.24307415. [PMID: 38798539 PMCID: PMC11118632 DOI: 10.1101/2024.05.15.24307415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
This study examined the effects of time restricted eating (TRE) on sex hormones in males and females, versus daily calorie restriction (CR). Adults with obesity (n = 90) were randomized to 1 of 3 groups for 12-months: 8-h TRE (eating only between 12:00 to 8:00 pm, with no calorie counting); CR (25% energy restriction daily); or control. Body weight decreased (P < 0.01) in the TRE and CR groups, relative to controls, in males, premenopausal females, and postmenopausal females, by month 12. Total testosterone, dehydroepiandrosterone (DHEA), and sex hormone binding globulin (SHBG) levels did not change over time, or between groups, in males, premenopausal females, and postmenopausal females. Estradiol, estrone, and progesterone were only measured in postmenopausal females, and remained unchanged. These findings suggest that TRE produces significant weight loss but does not impact circulating sex hormone levels in males and females with obesity over 12 months, relative to CR and controls. Trial registration Clinicaltrials.gov , NCT04692532 .
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23
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Wood TWP, Henriques WS, Cullen HB, Romero M, Blengini CS, Sarathy S, Sorkin J, Bekele H, Jin C, Kim S, Chemiakine A, Khondker RC, Isola JVV, Stout MB, Gennarino VA, Mogessie B, Jain D, Schindler K, Suh Y, Wiedenheft B, Berchowitz LE. The retrotransposon - derived capsid genes PNMA1 and PNMA4 maintain reproductive capacity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.11.592987. [PMID: 38798495 PMCID: PMC11118267 DOI: 10.1101/2024.05.11.592987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The human genome contains 24 gag -like capsid genes derived from deactivated retrotransposons conserved among eutherians. Although some of their encoded proteins retain the ability to form capsids and even transfer cargo, their fitness benefit has remained elusive. Here we show that the gag -like genes PNMA1 and PNMA4 support reproductive capacity. Six-week-old mice lacking either Pnma1 or Pnma4 are indistinguishable from wild-type littermates, but by six months the mutant mice become prematurely subfertile, with precipitous drops in sex hormone levels, gonadal atrophy, and abdominal obesity; overall they produce markedly fewer offspring than controls. Analysis of donated human ovaries shows that expression of both genes declines normally with aging, while several PNMA1 and PNMA4 variants identified in genome-wide association studies are causally associated with low testosterone, altered puberty onset, or obesity. These findings expand our understanding of factors that maintain human reproductive health and lend insight into the domestication of retrotransposon-derived genes.
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24
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Póvoa R. Relationship of Testosterone with Obesity and Arterial Hypertension. Arq Bras Cardiol 2024; 121:e20240138. [PMID: 38716964 PMCID: PMC11081143 DOI: 10.36660/abc.20240138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 05/12/2024] Open
Affiliation(s)
- Rui Póvoa
- Universidade Federal de São PauloSão PauloSPBrasilUniversidade Federal de São Paulo, São Paulo, SP – Brasil
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25
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Biernikiewicz M, Sobieszczańska M, Szuster E, Pawlikowska-Gorzelańczyk A, Janocha A, Rożek-Piechura K, Rusiecka A, Gebala J, Okrzymowska P, Kałka D. Erectile Dysfunction as an Obesity-Related Condition in Elderly Men with Coronary Artery Disease. J Clin Med 2024; 13:2087. [PMID: 38610852 PMCID: PMC11012732 DOI: 10.3390/jcm13072087] [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: 02/29/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Background: This cross-sectional study aimed to investigate the prevalence of erectile dysfunction (ED) in elderly men with overweight or obesity and coronary artery disease. Methods: Patients recruited in cardiac rehabilitation centers post-myocardial infarction provided demographic and anthropomorphic data. ED was assessed using the abbreviated International Index of Erectile Function 5 (IIEF-5) Questionnaire. Results: The study included 661 men with a mean age of 67.3 ± 5.57 years, a mean BMI of 27.9 ± 3.6 m/kg2, and a mean waist circumference of 98.9 ± 10.23 cm. Over 90% of men experienced ED, with similar proportions across BMI categories. The development of ED in men with a waist circumference of ≥100 cm had 3.74 times higher odds (OR 3.74; 95% CI: 1.0-13.7; p = 0.04) than in men with a waist circumference of <100 cm. Men with obesity and moderate-to-severe and severe ED were older compared to those without these disorders (67.1 ± 5.29 vs. 65.3 ± 4.35; p = 0.23). Conclusions: The prevalence of ED in men with coronary artery disease surpasses 90%. An increased body weight raises the risk of ED, with waist circumference proving to be a more reliable predictor of this risk compared to BMI. Physicians are encouraged to screen elderly patients with cardiovascular disease for ED and address obesity to enhance overall health.
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Affiliation(s)
| | | | - Ewa Szuster
- Obstetrics and Gynecology Department, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | | | - Anna Janocha
- Faculty of Medicine, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
| | - Krystyna Rożek-Piechura
- Faculty of Physiotherapy, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
| | - Agnieszka Rusiecka
- Statistical Analysis Centre, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Jana Gebala
- Men’s Health Centre in Wroclaw, 53-151 Wroclaw, Poland
| | - Paulina Okrzymowska
- Faculty of Physiotherapy, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
| | - Dariusz Kałka
- Men’s Health Centre in Wroclaw, 53-151 Wroclaw, Poland
- Faculty of Physiotherapy, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
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26
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Wolf Y, Skorochod R, Elias S. Effect of testosterone replacement therapy on scar quality in gender-affirming mastectomies. J Plast Reconstr Aesthet Surg 2024; 91:360-362. [PMID: 38447505 DOI: 10.1016/j.bjps.2024.01.017] [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: 07/29/2023] [Revised: 11/26/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND The term transgenders refer to people who sense discordance between their gender identity and the sex assigned to them at birth. Some transgenders receive hormonal therapy, which may lead to specific skin conditions. The purpose of the present study was to determine whether a causal relationship exists between hormonal therapy (specifically testosterone therapy) and unsatisfying surgical scarring, including hypertrophic and keloid scars. In addition, this study may serve as a basis for future studies, which may test means that aim to reduce such undesired effects. METHODS In this retrospective, observational cohort study, data were collected regarding 170 patients who underwent mastectomy as a gender-affirming surgery by the senior author between 2003 and 2021. The medical records were analysed to obtain personal, medical (including the duration of testosterone treatment) and surgical information from the patients' medical files. A blinded evaluator assessed the surgical scars by reviewing the postoperative clinical pictures of the patients. The scars were rated using the validated Stony Brook Scar Evaluation Scale (SBSES). The use of pictures to assess surgical scars is described in the validation study of the SBSES and is, therefore, accepted. RESULTS In total, 63 patients were included in the testosterone group and 63 were included in the non-testosterone treated group. The averages of the SBSES score were 2.74 and 2.66, respectively. The difference between the two averages was not statistically significant. CONCLUSION In our retrospective cohort study, we did not find the effect of testosterone therapy on post-operative surgical scars to be significant. EVIDENCE BASED MEDICINE (EBM) LEVEL 3.
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Affiliation(s)
- Yoram Wolf
- Plastic and Reconstructive Surgery Unit, Hillel Yaffe Medical Center, Hadera, Israel, Affiliated with The Technion-Institute of Technology, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Institute of Technology, Haifa, Israel
| | - Ron Skorochod
- Plastic and Reconstructive Surgery Unit, Hillel Yaffe Medical Center, Hadera, Israel, Affiliated with The Technion-Institute of Technology, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Institute of Technology, Haifa, Israel.
| | - Shady Elias
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Institute of Technology, Haifa, Israel
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27
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Gebauer J, Hodkovicova N, Tosnerova K, Skoupa K, Batik A, Bartejsova I, Charvatova M, Leva L, Jarosova R, Sladek Z, Faldyna M, Stastny K. Anabolic steroids induced changes at the level of protein expression: Effects of prolonged administration of testosterone and nandrolone to pigs. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104422. [PMID: 38521435 DOI: 10.1016/j.etap.2024.104422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 03/25/2024]
Abstract
Synthetic derivatives of steroid hormones, specifically anabolic-androgenic steroids (AAS), have gained prominence due to their observed benefits in enhancing meat quality. The study replicated the administration of banned AAS and investigated their impacts on pigs to contribute to the understanding of animal biochemistry and to explore the feasibility of detecting AAS administration by employing a non-targeted analysis. The effects were corroborated by evaluating changes in the expression of selected proteins, as well as examining haematological and biochemical profiles and histological alterations. Exposure to AAS influenced the expression of proteins related to drug-metabolizing enzymes, muscle and lipid metabolism, kidney function, reproductive processes, immune system functions, and carcinogenic changes. The effects of AAS appear intricate and contingent on factors such as the specific drug used, dosage, and duration of administration. The results underscore that protein expression analysis holds promise as a valuable tool for detecting illicit AAS use in the fattening process.
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Affiliation(s)
- Jan Gebauer
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Nikola Hodkovicova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic.
| | - Kristina Tosnerova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Kristyna Skoupa
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgrSciences, Mendel University in Brno, Brno, Czech Republic
| | - Andrej Batik
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgrSciences, Mendel University in Brno, Brno, Czech Republic
| | - Iva Bartejsova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Michaela Charvatova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Lenka Leva
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Rea Jarosova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Zbysek Sladek
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgrSciences, Mendel University in Brno, Brno, Czech Republic
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Kamil Stastny
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
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28
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Zhang J, Na X, Li Z, Ji JS, Li G, Yang H, Yang Y, Tan Y, Zhang J, Xi M, Su D, Zeng H, Wu L, Zhao A. Sarcopenic obesity is part of obesity paradox in dementia development: evidence from a population-based cohort study. BMC Med 2024; 22:133. [PMID: 38520024 PMCID: PMC10960494 DOI: 10.1186/s12916-024-03357-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Sarcopenic obesity, a clinical and functional condition characterized by the coexistence of obesity and sarcopenia, has not been investigated in relation to dementia risk and its onset. METHODS We included 208,867 participants from UK biobank, who aged 60 to 69 years at baseline. Dementia diagnoses were identified using hospital records and death register data. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazards models to evaluate the associations of obesity, sarcopenia, and sarcopenic obesity with dementia risk, stratified by sex. Stratified analyses were performed across dementia-related polygenic risk score (PRS). Restricted mean survival time models were established to estimate the difference and 95%CIs of dementia onset across different status. Additionally, linear regression models were employed to estimate associations of different status with brain imaging parameters. The mediation effects of chronic diseases were also examined. RESULTS Obese women with high PRS had a decreased risk (HR = 0.855 [0.761-0.961]), but obese men with low PRS had an increased risk (HR = 1.223 [1.045-1.431]). Additionally, sarcopenia was associated with elevated dementia risk (HRwomen = 1.323 [1.064-1.644]; HRmen = 2.144 [1.753-2.621]) in those with low PRS. Among those with high PRS, however, the association was only significant in early-life (HRwomen = 1.679 [1.355-2.081]; HRmen = 2.069 [1.656-2.585]). Of note, sarcopenic obesity was associated with higher dementia risk (HRwomen = 1.424 [1.227-1.653]; HRmen = 1.989 [1.702-2.323]), and results remained similar stratified by PRS. Considering dementia onset, obesity was associated with dementia by 1.114 years delayed in women, however, 0.170 years advanced in men. Sarcopenia (women: 0.080 years; men: 0.192 years) and sarcopenic obesity (women: 0.109 years; men: 0.511 years) respectively advanced dementia onset. Obesity, sarcopenia, and sarcopenic obesity were respectively related to alterations in different brain regions. Association between sarcopenic obesity and dementia was mediated by chronic diseases. CONCLUSIONS Sarcopenic obesity and sarcopenia were respectively associated with increased dementia risk and advanced dementia onset to vary degree. The role of obesity in dementia may differ by sex and genetic background.
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Affiliation(s)
- Junhan Zhang
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Xiaona Na
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Zhihui Li
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - John S Ji
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Guowei Li
- Center for Clinical Epidemiology and Methodology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Haibing Yang
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Yucheng Yang
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Yuefeng Tan
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Jian Zhang
- School of Public Health, Peking University, Beijing, China
| | - Menglu Xi
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Donghan Su
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Institute for Healthy China, Tsinghua University, Beijing, China
| | - Huatang Zeng
- Vanke School of Public Health, Tsinghua University, Beijing, China
- Shenzhen Health Development Research and Data Management Center, Shenzhen, Guangdong, China
| | - Liqun Wu
- Shenzhen Health Development Research and Data Management Center, Shenzhen, Guangdong, China
| | - Ai Zhao
- Vanke School of Public Health, Tsinghua University, Beijing, China.
- Institute for Healthy China, Tsinghua University, Beijing, China.
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29
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Lee D, Chung JM, Lee SD. Pediatric obesity and development of the penis and testis. Investig Clin Urol 2024; 65:189-195. [PMID: 38454829 PMCID: PMC10925733 DOI: 10.4111/icu.20230287] [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: 08/25/2023] [Revised: 10/25/2023] [Accepted: 12/29/2023] [Indexed: 03/09/2024] Open
Abstract
PURPOSE Pediatric obesity is increasing in many countries as socioeconomic status improves and the consumption of high calorie food increases. Thus, effect of obesity on genital development is an important topic. This study aimed to determine relationships of body mass index (BMI) with penile parameters and testicular volume in pediatric patients without penile or testicular abnormalities. MATERIALS AND METHODS Data from 1,499 male pediatric patients from our center were analyzed. Patients with penile or testicular abnormalities were excluded. Their age ranged from 2 to 18 years. These patients were divided into two groups based on their BMI: normal BMI (5th-85th percentile) and high BMI (≥85th percentile). Factors used in analysis included age, anthropometric indicators, baseline penile length (BPL), stretched penile length (SPL), penile circumference (PC), and mean testicular volume. These same parameters were analyzed for different age groups. RESULTS Pediatric patients with normal BMI showed longer BPL and SPL than patients with high BMI (p<0.05). However, PC and mean testicular volumes showed no significant difference between the two groups. BPL was significantly longer in the normal BMI group starting at ten years of age. SPL was significantly longer in the normal BMI group starting at eleven years of age. CONCLUSIONS Our study confirms that having a higher BMI during childhood has a negative effect on penile length. However, there was no significant relationship between BMI and PC or testicular volume.
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Affiliation(s)
- Danbee Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
- Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
| | - Jae Min Chung
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
- Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea.
| | - Sang Don Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
- Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
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30
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Shah SS, Kanani EAM, Kharat SK, Shah PS, Shah RM. Evaluation of the Incidence of Low Testosterone Levels in Young Male Adults with Moderate to Severe Obesity-Single-Centre Study from India. Obes Surg 2024; 34:836-840. [PMID: 38282174 DOI: 10.1007/s11695-024-07075-x] [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: 09/30/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
PURPOSE With the increase in obesity epidemic among Asians, it is necessary to evaluate the impact of obesity on this population. Low testosterone levels are known to be associated with obesity. This is the 1st study from Asia to evaluate incidence and magnitude of hypotestosteronemia in young adults with BMI more than 32.5 kg/m2 defined as moderate to severe obesity in Asians. MATERIALS AND METHODS One hundred thirty-four male patients with BMI more than 32.5 kg/m2, between 18 and 30 years old who visited a single bariatric facility between 2017 and 2020, were evaluated with BMI, total and free testosterone levels and clinical features of gynecomastia, hypogonadism, and thinning of pubic and armpit hair. Statistical analysis was performed using SPSS, Spearman's correlation coefficient, and ANOVA test. RESULTS 60.4% of patients (84/134) had low testosterone levels (< 300 ng/dl) and 23.9% (32/134) had levels between 300 and 400 ng/dl. 89.6% patients (120/134 had gynecomastia, 60.4% (81/134) had thinning of pubic and arm pit hair, and 62.7% (84/134) had hypogonadism. Testosterone levels showed a decreasing trend with increasing BMI, but it was not statistically significant. CONCLUSION Obesity is one of the important etiologies of hypotestosteronemia and its manifestations in young adults. The actual incidence may be significantly higher than what is reported in the literature. High-quality research is required to address questions of diagnosis and best treatment options.
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Affiliation(s)
- Shashank S Shah
- Laparo Obeso Centre (LOC Healthcare LLP), University of Bergen, Pune, India
| | | | | | - Poonam S Shah
- Laparo Obeso Centre (LOC Healthcare LLP), University of Bergen, Pune, India
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31
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Gacemer HA, Tosun BG, Helvacioglu D, Yaman A, Abali ZY, Haliloglu B, Turan SD, Haklar G, Bereket A, Guran T. Development of external genitalia during mini-puberty: is it related to somatic growth or reproductive hormones? Eur J Pediatr 2024; 183:1325-1332. [PMID: 38133811 DOI: 10.1007/s00431-023-05393-3] [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: 09/26/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Although hypothalamo-pituitary-gonadal axis is active during mini-puberty, its relationship with somatic growth and the role on the development of external genitalia has not been fully elucidated. We aimed to evaluate the effects of somatic growth and reproductive hormones on the development of external genitalia during mini-puberty. Anthropometric data, pubertal assesment, serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), dehydroepiandrosterone sulfate (DHEAS), androstenedione (A4), sex-hormone binding globulin (SHBG), estradiol (E2) and inhibin-B, testosterone (T), and anti-Mullerian Hormone (AMH) of healthy infants aged 1-4 months were evaluated. Free sex hormone index was calculated as T/SHBG for boys and E2/SHBG for girls. The mean age of 148 (74 female) infants included in the study was 2.31 ± 0.76 months. Tanner stage 2-3 sex steroid and gonadotropin levels were observed. A statistically significant difference was found between the weight, height, BMI, weight gain and serum FSH, LH, and A4 measurements of girls and boys (p < 0.05). Penile length was associated with weight (r = 0.24, p = 0.03), height (r = 0.25, p = 0.02), and AMH (r = 0.3, p = 0.01), but not with testosterone (p = 0.56 respectively). A negative correlation was found between weight and serum LH (r = - 0.26, p = 0.2) and T/SHBG levels in males (r = - 0.38, p = 0.015 respectively). Weight-SDS was negatively correlated with testosterone in males (r = - 0.25, p = 0.02). Testicular size and breast stage did not correlate with any of the hormonal and anthropometric parameters. Conclusions: External genitalia in males during mini-puberty is related more to somatic growth rather than reproductive hormones. Similar to pubertal developmental stages, both total and free testosterone are negatively associated with higher weight during mini-puberty. What is Known: • Mini-puberty allows early assessment of HPG axis function in infancy. • There is an inverse relationship between the amount of adipose tissue and circulating testosterone levels in males during puberty and adulthood. • The potential effect of somatic growth and reproductive hormones on external genital development during mini-puberty remains unclear. What is New: • During mini-puberty, males' external genitalia is more related to somatic growth than to reproductive hormones, but this relationship is not observed in girls. • Both total and free testosterone are negatively associated with higher weight during mini-puberty, similar to the pubertal developmental stages.
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Affiliation(s)
- Hazal Arıkan Gacemer
- Department of Pediatrics, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Busra Gurpinar Tosun
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Didem Helvacioglu
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Ali Yaman
- Department of Biochemistry, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Zehra Yavas Abali
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Belma Haliloglu
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Serap Demircioglu Turan
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Goncagul Haklar
- Department of Biochemistry, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Abdullah Bereket
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey
| | - Tulay Guran
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, 34841, Istanbul, Turkey.
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Fevzi Cakmak Mh, Ustkaynarca/Pendik, Mimar Sinan Cd. No. 41. 34899, Istanbul, Turkey.
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Gettler LT, Rosenbaum S, Bechayda SA, McDade TW, Kuzawa CW. Men's physical health and life history transitions in the Philippines: Evidence for 'marital selection' but not protective effects of partnering and fatherhood. Soc Sci Med 2024; 346:116732. [PMID: 38452489 DOI: 10.1016/j.socscimed.2024.116732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024]
Abstract
In Euro-American societies, married people typically have lower overall risks for total mortality and for certain chronic conditions compared to non-married people. However, people becoming partnered and parents also tend to gain weight in Euro-American settings. Few studies have tested whether links between physical health and life history status translate to other cultural contexts where the socio-ecological dynamics of family life may differ. This limits the application of these insights to men's well-being in global public health. To help address this gap, we drew on a large, long-running birth cohort study of Filipino men, using data collected at three waves between 2005 and 2014 when men were 21.5-30.5 years old (N = 607, obs. = 1760). We tested for the effects of the transition to partnering (marriage/cohabitation) and fatherhood on men's physical health (waist circumference, fat-free mass index, and grip strength). Men becoming partnered or partnered fathers (P/PF) had comparable longitudinal physical health trajectories to men remaining single non-fathers. However, men who became P/PF by their mid 20s had higher fat-free mass index values than single non-fathers at each wave, with the largest effect observed when all men were single non-fathers at baseline. Men who became P/PF by their early 30s were also stronger than the reference group at baseline. Thus, men who were more muscular and stronger at baseline were more likely to transition to P/PF status, consistent with a 'marital selection' model. In complementary analyses, men did not exhibit adverse health effects when they became partnered fathers as young adults or parents to infants, respectively. These findings suggest that links between health and life history transitions in this setting differ from those commonly observed in Euro-American societies. While transitions to marriage and fatherhood are promising windows for interventions to improve men's health, our results highlight the importance of tailoring such approaches to local dynamics.
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Affiliation(s)
- Lee T Gettler
- Department of Anthropology, University of Notre Dame, Notre Dame, IN, 46556, USA; Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556, USA.
| | - Stacy Rosenbaum
- Department of Anthropology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Sonny Agustin Bechayda
- USC Office of Population Studies Foundation, and Department of Anthropology, Sociology, and History, University of San Carlos, Metro Cebu, 6016, Philippines
| | - Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, IL, 60208, USA; Institute for Policy Research, Northwestern University, Evanston, IL, 60208, USA
| | - Christopher W Kuzawa
- Department of Anthropology, Northwestern University, Evanston, IL, 60208, USA; Institute for Policy Research, Northwestern University, Evanston, IL, 60208, USA
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Miron VD, Drăgănescu AC, Pițigoi D, Aramă V, Streinu-Cercel A, Săndulescu O. The Impact of Obesity on the Host-Pathogen Interaction with Influenza Viruses - Novel Insights: Narrative Review. Diabetes Metab Syndr Obes 2024; 17:769-777. [PMID: 38371386 PMCID: PMC10874191 DOI: 10.2147/dmso.s434115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/10/2024] [Indexed: 02/20/2024] Open
Abstract
After exposure to a viral pathogen, the host-pathogen interaction is essential to determine whether or not infection will ensue, and what the clinical outline of the infection will be. Recent research has shown that the patient with obesity presents a set of particular pathophysiological changes that lead to higher severity of viral infections, and this is particularly true for infection with influenza viruses. Herein, we describe the main metabolic, endocrine, and immune dysregulations that occur in the presence of obesity and their impact on driving intra-host viral diversity, leading to heightened severity and virulence of influenza. We show that obesity is linked to modified responses of both the innate and adaptive immune systems during viral infections, including influenza. Due to chronic inflammation and metabolic, endocrine, and signaling pathway disruptions, individuals with obesity have a suboptimal immune response. This results in longer illness duration, increased virus shedding, higher risk of hospitalization and complications, and greater mortality rates. Additionally, they may have a blunted response to vaccination and a higher likelihood of genetic mutation selection. Understanding the intricate interplay between obesity and viral pathogenesis is crucial for developing efficacious therapeutic approaches and public health policies, particularly in light of the escalating worldwide incidence of obesity.
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Affiliation(s)
- Victor Daniel Miron
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
| | - Anca Cristina Drăgănescu
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
| | - Daniela Pițigoi
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
| | - Victoria Aramă
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
| | - Adrian Streinu-Cercel
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
| | - Oana Săndulescu
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, Bucharest, Romania
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Bradshaw PT. Body composition and cancer survival: a narrative review. Br J Cancer 2024; 130:176-183. [PMID: 37891197 PMCID: PMC10803330 DOI: 10.1038/s41416-023-02470-0] [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: 04/01/2023] [Revised: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Interest in understanding the relationship between body composition and cancer survival has remained strong for decades, with a number of recent systematic reviews on the topic. However, the current state of evidence is based on heterogeneous exposure definitions based on anthropometry, yielding inconsistent findings with regard to this association. Recently the field has taken an exciting direction with the application of radiological assessments to measure specific aspects of body composition, yet reconciliation of findings from these modern assessment tools with those from the historic use of anthropometric data proves challenging. In this paper, I briefly review the biological basis for a link between body composition and cancer survival and summarize the epidemiological evidence with consideration to specific exposure measures. As enthusiasm is building around novel assessments, I conclude with a discussion of issues that researchers should be aware of when interpreting results from these new modalities.
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Affiliation(s)
- Patrick T Bradshaw
- School of Public Health, Division of Epidemiology, University of California Berkeley, Berkeley, CA, USA.
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35
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Laru J, Pinola P, Ojaniemi M, Korhonen E, Laikari L, Franks S, Piltonen TT, Tapanainen JS, Niinimäki M, Morin-Papunen L. Low testosterone at age 31 associates with maternal obesity and higher body mass index from childhood until age 46: A birth cohort study. Andrology 2024; 12:327-337. [PMID: 37424437 DOI: 10.1111/andr.13492] [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: 02/09/2023] [Revised: 05/28/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Low testosterone (T) levels in men associate with increased risks of obesity, type 2 diabetes, metabolic syndrome, and cardiovascular diseases. However, most studies are cross-sectional with follow-up-time < 10 years, and data on early growth are limited. OBJECTIVE To compare prenatal factors and body mass index (BMI) development from birth to age 46 in relation to low T at age 31. MATERIALS AND METHODS Men with low T (T < 12.1 nmol/L, n = 132) and men with normal T at age 31 (n = 2561) were derived from the Northern Finland Birth Cohort 1966. Prenatal factors, longitudinal weight and height data from birth to age 14, and cross-sectional weight and height data at ages 31 and 46, and waist-hip-ratio (WHR) and T levels at age 31 were analyzed. Longitudinal modeling and timing of adiposity rebound (AR, second BMI rise at age 5-7 years) were calculated from fitted BMI curves. Results were adjusted for mother's pre-pregnancy BMI and smoking status, birth weight for gestational age, alcohol consumption, education level, smoking status, and WHR at age 31. RESULTS Neither gestational age nor birth weight was associated with low T at age 31; however, maternal obesity during gestation was more prevalent among men with low T (9.8% vs. 3.5%, adjusted aOR: 2.43 [1.19-4.98]). Men with low T had earlier AR (5.28 vs. 5.82, aOR: 0.73 [0.56-0.94]) and higher BMI (p < 0.001) from AR onward until age 46. Men with both early AR and low T had the highest BMI from AR onward. CONCLUSIONS In men, maternal obesity and early weight gain associate with lower T levels at age 31, independently of adulthood abdominal obesity. Given the well-known health risks related to obesity, and the rising prevalence of maternal obesity, the results of the present study emphasize the importance of preventing obesity that may also affect the later reproductive health of the offspring.
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Affiliation(s)
- Johanna Laru
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Pekka Pinola
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Marja Ojaniemi
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
- Department of Children and Adolescents, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia Oulu, Oulu, Finland
| | - Elisa Korhonen
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Lotta Laikari
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Stephen Franks
- Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
| | - Terhi T Piltonen
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Juha S Tapanainen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Obstetrics and Gynaecology, HFR - Cantonal Hospital of Fribourg and University of Fribourg, Fribourg, Switzerland
| | - Maarit Niinimäki
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Laure Morin-Papunen
- Department of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland
- Medical Research Center, Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
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Wynne-Ellis MM, Mursu JJ, Tuomainen TP, Bertone-Johnson E, Salonen JT, Virtanen JK. Dietary fat quality and serum androgen concentrations in middle-aged men. Eur J Clin Nutr 2024; 78:99-106. [PMID: 37891228 PMCID: PMC10853065 DOI: 10.1038/s41430-023-01358-9] [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: 11/02/2022] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND/OBJECTIVES Average testosterone concentrations in men have declined over the last few decades. The reasons for this are not fully known, but changes in dietary fat quality have been suggested to have a role. This study aimed to investigate the associations of different dietary fatty acids with serum androgen concentrations. SUBJECTS/METHODS A total of 2546 men with a mean age of 53 from the Kuopio Ischaemic Heart Disease Risk Factor Study were included in this cross-sectional study. Associations between dietary saturated (SFA), monounsaturated (MUFA), polyunsaturated (PUFA) and trans (TFA) fatty acids and concentrations of serum total and free testosterone and steroid hormone binding globulin (SHBG) were analyzed with analysis of covariance and linear regression analysis. Associations of isocaloric replacement of nutrients and androgen concentrations were analyzed with multivariate nutrient-density models. RESULTS After adjustment for age, examination year and energy intake, higher SFA intake was associated with higher serum total and free testosterone and SHBG concentrations, and higher PUFA intake with lower concentrations. However, the associations were attenuated and not statistically significant after further adjustments for potential confounders. MUFA and TFA intakes were not associated with androgen concentrations. In isocaloric substitution models, replacing dietary protein with SFA was associated with higher serum total testosterone and SHBG concentrations. After excluding men with history of CVD or diabetes (n = 1021), no statistically significant associations were found. CONCLUSIONS Dietary fat quality was not independently associated with serum androgen concentrations in middle-aged men. However, replacing protein with SFA may be associated with higher serum androgen concentrations.
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Affiliation(s)
- Miika M Wynne-Ellis
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland
| | - Jaakko J Mursu
- University of Jyväskylä, Faculty of Sport and Health Sciences, Jyväskylä, Finland
| | - Tomi-Pekka Tuomainen
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland
| | | | - Jukka T Salonen
- University of Helsinki, Faculty of Medicine, Department of Public Health, Helsinki, Finland
- Metabolic Analytical Services Oy, Helsinki, Finland
| | - Jyrki K Virtanen
- University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland.
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Xu B, Mo W, Tan X, Zhang P, Huang J, Huang C, Guo D, Wei X, Liu Y, Lei X, Dou W, Lin J, Liu D, Yang L, Huang Y, Zhang H, Liao Y. Associations of Serum Testosterone and Sex Hormone-binding Globulin With Incident Arrhythmias in Men From UK Biobank. J Clin Endocrinol Metab 2024; 109:e745-e756. [PMID: 37665960 DOI: 10.1210/clinem/dgad526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
CONTEXT Sex hormones have been identified as cardiovascular risk factors, whereas the relationship between sex hormones and the risk of arrhythmias in men has not yet been well studied in the prospective cohort study. OBJECTIVE To analyze associations of serum testosterone and SHBG concentrations and calculate free testosterone (cFT) with arrhythmias in men. METHODS Sex hormones were measured at baseline from UK Biobank. Main outcomes were incidence of atrial fibrillation/flutter (AF), ventricular arrhythmia (VA), and bradyarrhythmia (BA). RESULTS Of 173 498 men (aged 37-73 years, followed for 11 years), 11 368 had incident AF, 1646 had incident VA, and 4788 had incident BA. Compared with the third quartiles, the lowest category of serum testosterone was associated with increased risks of AF (hazard ratio [HR], 1.06; 95% CI, 1.00-1.12) and BA (HR, 1.11; 95% CI, 1.02-1.20) after multivariable adjustment, but no VA. Likewise, similar associations were found between cFT values and AF and BA events. Furthermore, higher levels of cFT were associated with increased risks of AF (HR, 1.07; 95% CI, 1.02-1.13) and VA (HR, 1.18; 95% CI, 1.01-1.37). Higher SHBG concentrations were associated with increased risks of AF (HR, 1.44; 95% CI, 1.34-1.54), VA (HR, 1.27; 95% CI, 1.07-1.52), and BA (HR, 1.17; 95% CI ,1.05-1.29). CONCLUSIONS Lower levels of testosterone and cFT were associated with increased risk of AF and BA. Higher cFT levels were associated with increased risk of AF and VA. Higher SHBG levels were associated with increased risk of AF, VA, and BA.
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Affiliation(s)
- Bingyan Xu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Wei Mo
- Department of Endocrinology & Metabolism, Guangdong Second Traditional Chinese Medicine Hospital, Guangzhou 510095, China
| | - Xiangliang Tan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Peizhen Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Junlin Huang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chensihan Huang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Dan Guo
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xueyun Wei
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yating Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xuzhen Lei
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Weijuan Dou
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jiayang Lin
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Deying Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Linjie Yang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yan Huang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Huijie Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yunfei Liao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Meghani O, Albright JA, Testa EJ, Arcand MA, Daniels AH, Owens BD. Testosterone Therapy Is Associated With Increased Odds of Quadriceps Tendon Injury. Clin Orthop Relat Res 2024; 482:175-181. [PMID: 37404114 PMCID: PMC10723858 DOI: 10.1097/corr.0000000000002744] [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: 11/21/2022] [Revised: 04/24/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023]
Abstract
BACKGROUND Anabolic steroid use at supraphysiologic doses has been associated with an increased risk of tendon injury. However, the musculoskeletal effects of testosterone therapy in the clinical setting are not well understood. QUESTIONS/PURPOSES (1) Is prescription testosterone associated with a higher odds of subsequent quadriceps muscle or tendon injury? (2) Is prescription testosterone associated with a higher odds of surgical repair of the quadriceps tendon? METHODS The PearlDiver Database, which contains data on Medicaid, Medicare, and commercially insured patients, allows for a large representative sample of the US population including both publicly and privately insured patients. The database was queried for all patients between 2011 and 2018 who filled a testosterone prescription. Additionally, all quadriceps injuries using ICD-9 and ICD-10 codes between 2011 and 2018 were queried. Propensity score matching based on age, sex, Charlson comorbidity index, and specific comorbidities allowed us to create matched control groups. We used the t-test and chi-square analysis to compare the unmatched and matched cohorts. A total of 151,797 patients (123,627 male patients and 28,170 female patients) with a history of filled testosterone prescriptions were included in the study after matching with the control group, which was of equal size and representation of age, male-female proportions, and comorbidities. Chi-square and logistic regression analyses were performed to compare odds of quadriceps injury and quadriceps tendon repair among the testosterone groups to that of their respective control groups by age and sex. RESULTS Within 1 year of filling prescriptions for testosterone, 0.06% (97 of 151,797) of patients experienced a quadriceps injury compared with less than 0.01% (18 of 151,797) of patients in the control group (OR 5.4 [95% CI 3.4 to 9.2]; p < 0.001). Within the sex-specific matched groups, filling a testosterone prescription was associated with an increase in the odds of quadriceps injury in male patients within 1 year of the prescription (OR 5.8 [95% CI 3.5 to 10.3]; p < 0.001). Additionally, patients who filled a testosterone prescription were at increased risk of having quadriceps tendon repair within a year of the injury than were patients in the matched control group (OR 4.7 [95% CI 2.0 to 13.8]; p = 0.001). CONCLUSION Considering these findings, it is important for physicians to counsel patients receiving testosterone replacement therapy of the substantially increased odds of quadriceps tendon injury. Future investigations into the mechanisms of influence of exogenous anabolic steroids on tendon injury remains of interest. LEVEL OF EVIDENCE Level III, therapeutic study.
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Affiliation(s)
- Ozair Meghani
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - J. Alex Albright
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Edward J. Testa
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Michel A. Arcand
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Alan H. Daniels
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Brett D. Owens
- Department of Orthopaedics at the Warren Alpert Medical School of Brown University, Providence, RI, USA
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Thonusin C, Pantiya P, Kongkaew A, Nawara W, Arunsak B, Sriwichaiin S, Chattipakorn N, Chattipakorn SC. Exercise and Caloric Restriction Exert Different Benefits on Skeletal Muscle Metabolism in Aging Condition. Nutrients 2023; 15:5004. [PMID: 38068862 PMCID: PMC10708263 DOI: 10.3390/nu15235004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
Exercise and caloric restriction improve skeletal muscle metabolism. However, the benefits of exercise and caloric restriction on skeletal muscle metabolism in aging have never been compared. Seven-week-old male Wistar rats (n = 24) were divided into 4 groups (n = 6 per group) to receive either normal saline solution for 28 weeks, 150 mg/kg/day of D-galactose for 28 weeks to induce premature aging, 150 mg/kg/day of D-galactose for 28 weeks plus exercise for 16 weeks (week 13-28), or 150 mg/kg/day of D-galactose for 28 weeks plus 30% caloric restriction for 16 weeks (week 13-28). The 17-month-old rats (n = 6) were also injected with normal saline solution for 28 weeks as the naturally aged controls. At the end of week 28, total walking distance and fatty acid and carbohydrate oxidation during physical activity were determined. Then, all rats were euthanized for the collection of blood and tibialis anterior muscle. The results showed that D-galactose successfully mimicked the natural aging of skeletal muscle. Exercise and caloric restriction equally improved carbohydrate oxidation during physical activity and myogenesis. However, exercise was superior to caloric restriction in terms of improving fatty acid oxidation and oxidative phosphorylation. Interestingly, caloric restriction decreased oxidative stress, whereas exercise increased oxidative stress of skeletal muscle. All of these findings indicated that the benefits of exercise and caloric restriction on skeletal muscle metabolism during aging were different, and therefore the combination of exercise and caloric restriction might provide greater efficacy in ameliorating skeletal muscle aging.
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Affiliation(s)
- Chanisa Thonusin
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (C.T.); (P.P.); (S.S.); (N.C.)
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Patcharapong Pantiya
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (C.T.); (P.P.); (S.S.); (N.C.)
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Aphisek Kongkaew
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Wichwara Nawara
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Busarin Arunsak
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sirawit Sriwichaiin
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (C.T.); (P.P.); (S.S.); (N.C.)
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (C.T.); (P.P.); (S.S.); (N.C.)
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Siriporn C. Chattipakorn
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (C.T.); (P.P.); (S.S.); (N.C.)
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (W.N.); (B.A.)
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
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40
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Heijboer AC, Hannema SE. Androgen Excess and Deficiency: Analytical and Diagnostic Approaches. Clin Chem 2023; 69:1361-1373. [PMID: 37794651 DOI: 10.1093/clinchem/hvad146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/18/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND Androgens are synthesized from cholesterol through sequential conversions by enzymes in the adrenal glands and gonads. Serum levels of androgens change during the different phases of life and regulate important developmental and maturational processes. Androgen excess or deficiency can therefore present at various ages in various ways. CONTENT The diagnostic approach for atypical genitalia, premature pubarche, delayed pubertal onset or progression, and hirsutism or virilization, including measurement of androgens (testosterone, androstenedione, 17-OHprogesterone, dehydroepiandrosterone, and dihydrotestosterone) is discussed in the current review. Androgens can be measured in serum, saliva, urine, or dried blood spots. Techniques to measure androgens, including immunoassays and LC-MS, have their own advantages and pitfalls. In addition, pre- and postanalytical issues are important when measuring androgens. SUMMARY During clinical interpretation of androgen measurements, it is important to take preanalytical circumstances, such as time of blood withdrawal, into account. As immunoassays have major drawbacks, especially in samples from women and neonates, concentrations measured using these assays should be interpreted with care. Reference intervals can only be used in relation to the measurement technique and the standardization of the assay. In the near future, new androgens will probably be added to the current repertoire to further improve the diagnosis and follow-up of androgen excess or deficiency.
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Affiliation(s)
- Annemieke C Heijboer
- Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam, the Netherlands
- Endocrine Laboratory, Department of Laboratory Medicine, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
| | - Sabine E Hannema
- Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
- Department of Pediatric Endocrinology, Amsterdam UMC location Vrije Universiteit, Emma Children's Hospital, Amsterdam, the Netherlands
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Abstract
Obesity has been recognized to be increasing globally and is designated a disease with adverse consequences requiring early detection and appropriate care. In addition to being related to metabolic syndrome disorders such as type 2 diabetes, hypertension, stroke, and premature coronary artery disease. Obesity is also etiologically linked to several cancers. The non-gastrointestinal cancers are breast, uterus, kidneys, ovaries, thyroid, meningioma, and thyroid. Gastrointestinal (GI) cancers are adenocarcinoma of the esophagus, liver, pancreas, gallbladder, and colorectal. The brighter side of the problem is that being overweight and obese and cigarette smoking are mostly preventable causes of cancers. Epidemiology and clinical studies have revealed that obesity is heterogeneous in clinical manifestations. In clinical practice, BMI is calculated by dividing a person's weight in kilograms by the square of the person's height in square meters (kg/m2). A BMI above 30 kg/m2 (defining obesity in many guidelines) is considered obesity. However, obesity is heterogeneous. There are subdivisions for obesity, and not all obesities are equally pathogenic. Adipose tissue, in particular, visceral adipose tissue (VAT), is endocrine and abdominal obesity (a surrogate for VAT) is evaluated by waist-hip measurements or just waist measures. Visceral Obesity, through several hormonal mechanisms, induces a low-grade chronic inflammatory state, insulin resistance, components of metabolic syndrome, and cancers. Metabolically obese, normal-weight (MONW) individuals in several Asian countries may have BMI below normal levels to diagnose obesity but suffer from many obesity-related complications. Conversely, some people have high BMI but are generally healthy with no features of metabolic syndrome. Many clinicians advise weight loss by dieting and exercise to metabolically healthy obese with large body habitus than to individuals with metabolic obesity but normal BMI. The GI cancers (esophagus, pancreas, gallbladder, liver, and colorectal) are individually discussed, emphasizing the incidence, possible pathogenesis, and preventive measures. From 2005 to 2014, most cancers associated with overweight and Obesity increased in the United States, while cancers related to other factors decreased. The standard recommendation is to offer or refer adults with a body mass index (BMI) of 30 or more to intensive, multicomponent behavioral interventions. However, the clinicians have to go beyond. They should critically evaluate BMI with due consideration for ethnicity, body habitus, and other factors that influence the type of obesity and obesity-related risks. In 2001, the Surgeon General's ``Call to Action to Prevent and Decrease Overweight and Obesity'' identified obesity as a critical public health priority for the United States. At government levels reducing obesity requires policy changes that improve the food and physical activity for all. However, implementing some policies with the most significant potential benefit to public health is politically tricky. The primary care physician, as well as subspecialists, should identify overweight and Obesity based on all the variable factors in the diagnosis. The medical community should address the prevention of overweight and Obesity as an essential part of medical care as much as vaccination in preventing infectious diseases at all levels- from childhood, to adolescence, and adults.
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Affiliation(s)
- Yuntao Zou
- Department of Medicine, Saint Peter's University Hospital, 125 Andover DR, Kendall Park, New Brunswick, NJ 08901, USA
| | - Capecomorin S Pitchumoni
- Department of Medicine, Saint Peter's University Hospital, 125 Andover DR, Kendall Park, New Brunswick, NJ 08901, USA.
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Kummer KK, Mangweth-Matzek B. Male eating disorders in midlife-possible links between excessive sports and hormones. Aging Male 2023; 26:2154571. [PMID: 36790384 DOI: 10.1080/13685538.2022.2154571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Although eating disorders were long considered a typical female disorder, it is now clear that men are also affected. However, the literature on eating disorders in men is still very limited, and the actual extent is not known. Even less is known about the epidemiology of eating disorders in older individuals. In this focused review, we will present an update of the available data on disordered eating and eating disorders in middle-aged and older males. In addition, we will highlight the relationship of eating disorders with excessive sports as a purging method of choice for this age group and discuss the impact of age-related hormonal imbalances in aging men.
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Affiliation(s)
- Kai K Kummer
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Psychiatry, Psychotherapy, Psychosomatics and Psychological Medicine, University Hospital of Psychiatry II, Medical University of Innsbruck, Innsbruck, Austria
| | - Barbara Mangweth-Matzek
- Department of Psychiatry, Psychotherapy, Psychosomatics and Psychological Medicine, University Hospital of Psychiatry II, Medical University of Innsbruck, Innsbruck, Austria
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Rabadán-Chávez G, Díaz de la Garza RI, Jacobo-Velázquez DA. White adipose tissue: Distribution, molecular insights of impaired expandability, and its implication in fatty liver disease. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166853. [PMID: 37611674 DOI: 10.1016/j.bbadis.2023.166853] [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: 04/15/2023] [Revised: 07/17/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
We are far behind the 2025 World Health Organization (WHO) goal of a zero increase in obesity. Close to 360 million people in Latin America and the Caribbean are overweight, with the highest rates observed in the Bahamas, Mexico, and Chile. To achieve relevant progress against the obesity epidemic, scientific research is essential to establish uniform practices in the study of obesity pathophysiology (using pre-clinical and clinical models) that ensure accuracy, reproducibility, and transcendent outcomes. The present review focuses on relevant aspects of white adipose tissue (WAT) expansion, underlying mechanisms of inefficient expandability, and its repercussion in ectopic lipid accumulation in the liver during nutritional abundance. In addition, we highlight the potential role of disrupted circadian rhythm in WAT metabolism. Since genetic factors also play a key role in determining an individual's predisposition to weight gain, we describe the most relevant genes associated with obesity in the Mexican population, underlining that most of them are related to appetite control.
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Affiliation(s)
- Griselda Rabadán-Chávez
- Tecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, 64849 Monterrey, NL, Mexico
| | - Rocío I Díaz de la Garza
- Tecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, 64849 Monterrey, NL, Mexico; Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, 64849 Monterrey, NL, Mexico.
| | - Daniel A Jacobo-Velázquez
- Tecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, 64849 Monterrey, NL, Mexico; Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Guadalajara, Av. General Ramon Corona 2514, C.P. 45201 Zapopan, Jalisco, Mexico.
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Albright JA, Lou M, Rebello E, Ge J, Testa EJ, Daniels AH, Arcand M. Testosterone replacement therapy is associated with increased odds of Achilles tendon injury and subsequent surgery: a matched retrospective analysis. J Foot Ankle Res 2023; 16:76. [PMID: 37950322 PMCID: PMC10638827 DOI: 10.1186/s13047-023-00678-0] [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: 05/05/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Prescription of testosterone replacement therapy (TRT) has increased in the United States in recent years, and though anabolic steroids have been associated with tendon rupture, there is a paucity of literature evaluating the risk of Achilles tendon injury with TRT. This study aims to evaluate the associative relationship between consistent TRT, Achilles tendon injury, and subsequent surgery. METHODS This is a one-to-one matched retrospective cohort study utilizing the PearlDiver database. Records were queried for patients aged 35-75 who were prescribed at least 3 consecutive months of TRT between January 1, 2010 and December 31, 2019. Achilles tendon injuries and subsequent surgeries were identified using ICD-9, ICD-10, and CPT billing codes. Multivariable logistic regression was used to compare odds of Achilles tendon injury, Achilles tendon surgery, and revision surgery, with a p-value < 0.05 representing statistical significance. RESULTS A sample of 423,278 patients who filled a TRT prescription for a minimum of 3 consecutive months was analyzed. The 2-year incidence of Achilles tendon injury was 377.8 (95% CI, 364.8-391.0) per 100,000 person-years in the TRT cohort, compared to 245.8 (95% CI, 235.4-256.6) in the control (p < 0.001). The adjusted analysis demonstrated TRT to be associated with a significantly increased likelihood of being diagnosed with Achilles tendon injury (aOR = 1.24, 95% CI, 1.15-1.33, p < 0.001). Of those diagnosed with Achilles tendon injury, 287/3,198 (9.0%) of the TRT cohort subsequently underwent surgery for their injury, compared to 134/2,081 (6.4%) in the control cohort (aOR = 1.54, 95% CI, 1.19-1.99, p < 0.001). CONCLUSIONS There is a significant association between Achilles tendon injury and prescription TRT, with a concomitantly increased rate of undergoing surgical management. These results provide insight into the risk profile of TRT and further research into the science of tendon pathology in the setting of TRT is an area of continued interest.
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Affiliation(s)
- J Alex Albright
- Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
| | - Mary Lou
- Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA
| | - Elliott Rebello
- Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA
| | - Jonathan Ge
- Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA
| | - Edward J Testa
- Department of Orthopaedics, Brown University Warren Alpert Medical School, Providence, RI, 02912, USA
| | - Alan H Daniels
- Department of Orthopaedics, Brown University Warren Alpert Medical School, Providence, RI, 02912, USA
| | - Michel Arcand
- Department of Orthopaedics, Brown University Warren Alpert Medical School, Providence, RI, 02912, USA
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Zapaishchykova A, Liu KX, Saraf A, Ye Z, Catalano PJ, Benitez V, Ravipati Y, Jain A, Huang J, Hayat H, Likitlersuang J, Vajapeyam S, Chopra RB, Familiar AM, Nabavidazeh A, Mak RH, Resnick AC, Mueller S, Cooney TM, Haas-Kogan DA, Poussaint TY, Aerts HJWL, Kann BH. Automated temporalis muscle quantification and growth charts for children through adulthood. Nat Commun 2023; 14:6863. [PMID: 37945573 PMCID: PMC10636102 DOI: 10.1038/s41467-023-42501-1] [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: 07/21/2023] [Accepted: 10/12/2023] [Indexed: 11/12/2023] Open
Abstract
Lean muscle mass (LMM) is an important aspect of human health. Temporalis muscle thickness is a promising LMM marker but has had limited utility due to its unknown normal growth trajectory and reference ranges and lack of standardized measurement. Here, we develop an automated deep learning pipeline to accurately measure temporalis muscle thickness (iTMT) from routine brain magnetic resonance imaging (MRI). We apply iTMT to 23,876 MRIs of healthy subjects, ages 4 through 35, and generate sex-specific iTMT normal growth charts with percentiles. We find that iTMT was associated with specific physiologic traits, including caloric intake, physical activity, sex hormone levels, and presence of malignancy. We validate iTMT across multiple demographic groups and in children with brain tumors and demonstrate feasibility for individualized longitudinal monitoring. The iTMT pipeline provides unprecedented insights into temporalis muscle growth during human development and enables the use of LMM tracking to inform clinical decision-making.
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Affiliation(s)
- Anna Zapaishchykova
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kevin X Liu
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Anurag Saraf
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Zezhong Ye
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Paul J Catalano
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Viviana Benitez
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA
| | - Yashwanth Ravipati
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Arnav Jain
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Julia Huang
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hasaan Hayat
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
- Michigan State University, East Lansing, MI, USA
| | - Jirapat Likitlersuang
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sridhar Vajapeyam
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Boston Children's Hospital, Boston, MA, USA
| | - Rishi B Chopra
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ariana M Familiar
- Children's Hospital of Philadelphia, Philadelphia, USA
- University of Pennsylvania, Pennsylvania, USA
| | - Ali Nabavidazeh
- Children's Hospital of Philadelphia, Philadelphia, USA
- University of Pennsylvania, Pennsylvania, USA
| | - Raymond H Mak
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Adam C Resnick
- Children's Hospital of Philadelphia, Philadelphia, USA
- University of Pennsylvania, Pennsylvania, USA
| | - Sabine Mueller
- Department of Neurology, Neurosurgery and Pediatrics, University of California, San Francisco, USA
| | - Tabitha M Cooney
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA
| | - Daphne A Haas-Kogan
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tina Y Poussaint
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Boston Children's Hospital, Boston, MA, USA
| | - Hugo J W L Aerts
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology and Nuclear Medicine, CARIM & GROW, Maastricht University, Maastricht, the Netherlands
| | - Benjamin H Kann
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA.
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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Wang J, Zhang S, Hu L, Wang Y, Liu K, Le J, Tan Y, Li T, Xue H, Wei Y, Zhong O, He J, Zi D, Lei X, Deng R, Luo Y, Tang M, Su M, Cao Y, Liu Q, Tang Z, Lei X. Pyrroloquinoline quinone inhibits PCSK9-NLRP3 mediated pyroptosis of Leydig cells in obese mice. Cell Death Dis 2023; 14:723. [PMID: 37935689 PMCID: PMC10630350 DOI: 10.1038/s41419-023-06162-8] [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: 03/15/2023] [Revised: 08/25/2023] [Accepted: 09/19/2023] [Indexed: 11/09/2023]
Abstract
Abnormal lipid metabolism and chronic low-grade inflammation are the main traits of obesity. Especially, the molecular mechanism of concomitant deficiency in steroidogenesis-associated enzymes related to testosterone (T) synthesis of obesity dominated a decline in male fertility is still poorly understood. Here, we found that in vivo, supplementation of pyrroloquinoline quinone (PQQ) efficaciously ameliorated the abnormal lipid metabolism and testicular spermatogenic function from high-fat-diet (HFD)-induced obese mice. Moreover, the transcriptome analysis of the liver and testicular showed that PQQ supplementation not only inhibited the high expression of proprotein convertase subtilisin/Kexin type 9 (PCSK9) but also weakened the NOD-like receptor family pyrin domain containing 3 (NLRP3)-mediated pyroptosis, which both played a negative role in T synthesis of Leydig Cells (LCs). Eventually, the function and the pyroptosis of LCs cultured with palmitic acid in vitro were simultaneously benefited by suppressing the expression of NLRP3 or PCSK9 respectively, as well the parallel effects of PQQ were affirmed. Collectively, our data revealed that PQQ supplementation is a feasible approach to protect T synthesis from PCSK9-NLRP3 crosstalk-induced LCs' pyroptosis in obese men.
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Affiliation(s)
- Jinyuan Wang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Shun Zhang
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China
| | - Linlin Hu
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Yan Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China
| | - Ke Liu
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Jianghua Le
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China
| | - Yongpeng Tan
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Tianlong Li
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Haoxuan Xue
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yanhong Wei
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Ou Zhong
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Junhui He
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Dan Zi
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Xin Lei
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Renhe Deng
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yafei Luo
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Masong Tang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Mingxuan Su
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yichang Cao
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China
| | - Zhihan Tang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China.
| | - Xiaocan Lei
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China.
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Smith SJ, Lopresti AL, Fairchild TJ. Exploring the efficacy and safety of a novel standardized ashwagandha ( Withania somnifera) root extract (Witholytin®) in adults experiencing high stress and fatigue in a randomized, double-blind, placebo-controlled trial. J Psychopharmacol 2023; 37:1091-1104. [PMID: 37740662 PMCID: PMC10647917 DOI: 10.1177/02698811231200023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
BACKGROUND Stress is a state of homeostasis in the body being challenged, resulting in a systemic response. It has become more prevalent in recent years and affects mental and physical health. AIMS Evaluate the effects of ashwagandha on stress, fatigue, and sex hormones in overweight or mildly obese men and women with self-reported stress and fatigue. METHODS Two-arm, parallel-group, 12-week, randomized, double-blind, placebo-controlled trial on overweight or mildly obese men and women aged 40-75 years, supplementing with 200 mg of an ashwagandha root extract (Witholytin®) twice daily. RESULTS/OUTCOMES Supplementation with ashwagandha was associated with a significant reduction in stress levels based on the Perceived Stress Scale (primary outcome); however, the improvements were not significantly different to the placebo group (p = 0.867). Based on the Chalder Fatigue Scale, there was a statistically significant reduction in fatigue symptoms in the ashwagandha group compared to the placebo group (p = 0.016), and participants taking ashwagandha also experienced a significant increase in heart rate variability (p = 0.003). However, there were no significant between-group differences in other self-report outcome measures. In the men taking ashwagandha, there was a significant increase in the blood concentrations of free testosterone (p = 0.048) and luteinizing hormone (p = 0.002) compared to the placebo group. CONCLUSIONS/INTERPRETATION The results of this study suggest that in overweight middle-to-older age adults experiencing high stress and fatigue, compared to the placebo, ashwagandha did not have a significantly greater impact on perceived stress levels. However, based on secondary outcome measures, it may have anti-fatigue effects. This may be via its impact on the autonomic nervous system. However, further research is required to expand on these current findings.
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Affiliation(s)
- Stephen J Smith
- Clinical Research Australia, Perth, WA, Australia
- College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Adrian L Lopresti
- Clinical Research Australia, Perth, WA, Australia
- College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Timothy J Fairchild
- College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
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Smith SJ, Bekele D, Lopresti AL, Fairchild TJ. Examining the associations between testosterone and biomarkers as men age. Am J Hum Biol 2023; 35:e23942. [PMID: 37341438 DOI: 10.1002/ajhb.23942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/22/2023] Open
Abstract
OBJECTIVES Testosterone concentrations in men decline with advancing age. However, the cause of the decline is yet to be fully elucidated. Therefore, the aims of this study were to examine the associations between chronic diseases such as obesity and type 2 diabetes mellitus (T2DM) with total testosterone (TT) and sex hormone-binding globulin (SHBG), using a large nationally-representative data set (National Health and Nutrition Examination Survey; NHANES). METHODS NHANES is a cross-sectional survey, physical examination, and laboratory evaluation of a nationally-representative sample of a non-institutionalized United States population. Male participants aged ≥18 years during the NHANES 2013-2014 and NHANES 2015-2016 survey periods were selected for this analysis. The analysis included the following data: body mass index (BMI), oral glucose tolerance test (OGTT), homeostatic model assessment of insulin resistance (HOMA-IR), insulin, glucose, and age. RESULTS An overweight or obese condition was significantly inversely associated with TT and SHBG, even after adjusting for other variables. Several variables associated with T2DM (OGTT, HOMA-IR, insulin, and glucose) were also inversely associated with TT; however, only the associations between OGTT and insulin with TT remained significant after adjusting for the other variables. Insulin and HOMA-IR levels were significantly inversely associated with SHBG; however, only the association between SHBG and pre-diabetic HOMA-IR levels remained significant after adjusting for the other variables. OGTT became significantly associated with SHBG after adjusting for the other variables. Age was significantly inversely associated with TT, but positively associated with SHBG, even after adjusting for other variables. CONCLUSION The results of the present study, which is the largest to date, indicate that a marker of obesity, BMI, and some markers of T2DM are both independently and significantly inversely associated with TT and SHBG.
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Affiliation(s)
- Stephen J Smith
- Clinical Research Australia, Perth, Western Australia, Australia
- The Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Western Australia, Australia
| | - Daniel Bekele
- College of Natural and Computational Sciences, Dire Dawa University, Dire Dawa, Ethiopia
| | - Adrian L Lopresti
- Clinical Research Australia, Perth, Western Australia, Australia
- The Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Western Australia, Australia
| | - Timothy J Fairchild
- The Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Western Australia, Australia
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Tan M, Liang Y, Lv W, Ren H, Cai Q. The effects of inspiratory muscle training on swimming performance: A study on the cohort of swimming specialization students. Physiol Behav 2023; 271:114347. [PMID: 37699450 DOI: 10.1016/j.physbeh.2023.114347] [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: 06/23/2023] [Revised: 07/29/2023] [Accepted: 09/09/2023] [Indexed: 09/14/2023]
Abstract
PURPOSE Current evidence posits a strong correlation between respiratory muscle function and swimming performance. Despite this, few studies have explored the integration of inspiratory muscle training (IMT) into standard swimming training regimens, which remains an unexplored avenue for improving performance in swimmers. This study aims to evaluate the potential advantages of IMT for enhancing respiratory function and swimming performance and determine whether such training could induce beneficial physiological adaptations. METHODS We designed and conducted a randomized controlled trial involving 43 swimming specialization students aged 18-25 years. Participants were randomly allocated to two groups: a control group, which followed regular swimming training, and an experimental group, which complemented the standard training with IMT. The intervention lasted for six weeks. Key outcomes measured included swimming performance metrics (time of 50 m freestyle, number of breaths in 50 m freestyle, distance before first breath in freestyle, time of 100 m freestyle) and various inspiratory muscle function parameters such as vital capacity (VC), maximum inspiratory pressure (MIP), maximum inspiratory flow (MIF), and maximum inspiratory capacity (MIC). We also assessed certain biochemical parameters, including hemoglobin, creatine kinase (CK), blood urea nitrogen (BUN), testosterone, and cortisol concentrations. RESULTS Following the training period, the experimental group exhibited significant improvements in swimming performance and respiratory function parameters. We also noted an increase in hemoglobin levels and a reduction in testosterone concentrations in this group, suggesting beneficial physiological adaptations in response to the combined IMT and swimming training. CONCLUSION Our findings underline the potential of IMT as a supplementary training modality for enhancing respiratory function and improving swimming performance. The changes in biochemical parameters suggest physiological adaptations that might contribute to these observed improvements. This study opens the door for future research on the benefits of integrating IMT into training regimens for competitive swimmers. Further investigation is warranted to fully elucidate the mechanisms behind the observed benefits and to validate these findings in a larger cohort and other athlete populations.
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Affiliation(s)
| | - Yuxi Liang
- Guangzhou Sport University, Guangzhou, China
| | - Wenting Lv
- Guangzhou Sport University, Guangzhou, China
| | - Hao Ren
- Institute for Healthcare Artificial Intelligence, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Qijun Cai
- Guangzhou Sport University, Guangzhou, China
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Zhang D, Guo X, Feng M, Bao X, Deng K, Yao Y, Lian W, Xing B, Wang H. Preoperative and postoperative blood testosterone levels in patients with acromegaly: a prospective study. Front Endocrinol (Lausanne) 2023; 14:1259529. [PMID: 37886642 PMCID: PMC10598850 DOI: 10.3389/fendo.2023.1259529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/11/2023] [Indexed: 10/28/2023] Open
Abstract
Purpose To investigate the prevalence of low blood testosterone level (LTL) and its determinant factors among active male acromegaly patients, as well as the effect of surgery on LTL in male acromegaly patients. Methods A retrospective, single-center study focused on 252 male acromegaly patients aged 18 years-60 years diagnosed in the Peking Union Medical College Hospital from January 2015 to December 2018 was carried out. The measurements of preoperative and postoperative testosterone levels, serum growth hormone (GH), insulin-like growth factor 1 (IGF-1), and other clinical data were analyzed. Results Forty per cent of subjects included were diagnosed with LTL pre surgery. Patients were divided into normal testosterone level (NTL) and LTL groups based on their testosterone level. There were significant differences (p < 0.01) between groups in the presence of macroadenomas, invasion of the cavernous sinus, compression of the optic chiasm, and serum GH and prolactin levels pre surgery. Invasion of the cavernous sinus [odds ratio (OR) = 4.299; p = 0.000] and serum prolactin level (OR = 1.023, p = 0.001) were independent predictors of LTLs in male patients before surgical intervention. A total of 67.9% of LTL patients recovered during the follow-up, with a new-onset rate of 3.4%. Body mass index, invasion of the cavernous sinus, GH, IGF-1, and prolactin levels, the presence of a prolactin-secreting tumor, and recovery from acromegaly were significantly different (p < 0.05) in the NTL group and in the LTL group during the follow-up. The presence of a prolactin-secreting tumor (OR = 0.224; p = 0.001) and recovery from acromegaly (OR = 0.168; p = 0.006) were independent predictors of LTLs in male acromegaly patients during the follow-up. Conclusion The invasiveness of tumor and levels of blood prolactin are independent factors for LTLs before surgery, whereas GH and IGF-1 levels are not. Most male patients can recover from LTL after tumor restriction surgery: those who recover from acromegaly have a better chance of recovering from LTL.
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Affiliation(s)
- Duoxing Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaopeng Guo
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Ming Feng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Xinjie Bao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Kan Deng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Yong Yao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Wei Lian
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Bing Xing
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Endocrinology, China Pituitary Adenoma Specialist Council, Beijing, China
| | - Hanbi Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
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