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Kaufman JM, Lapauw B, Mahmoud A, T'Sjoen G, Huhtaniemi IT. Aging and the Male Reproductive System. Endocr Rev 2019; 40:906-972. [PMID: 30888401 DOI: 10.1210/er.2018-00178] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/27/2018] [Indexed: 12/21/2022]
Abstract
This narrative review presents an overview of current knowledge on fertility and reproductive hormone changes in aging men, the factors driving and modulating these changes, their clinical consequences, and the benefits and risks of testosterone (T) therapy. Aging is accompanied by moderate decline of gamete quality and fertility. Population mean levels show a mild total T decline, an SHBG increase, a steeper free T decline, and a moderate LH increase with important contribution of comorbidities (e.g., obesity) to these changes. Sexual symptoms and lower hematocrit are associated with low T and are partly responsive to T therapy. The relationship of serum T with body composition and metabolic health is bidirectional; limited beneficial effects of T therapy on body composition have only marginal effects on metabolic health and physical function. Skeletal changes are associated primarily with estradiol and SHBG. Cognitive decline is not consistently linked to low T and is not improved by T therapy. Although limited evidence links moderate androgen decline with depressive symptoms, T therapy has small beneficial effects on mood, depressive symptoms, and vitality in elderly patients with low T. Suboptimal T (and/or DHT) has been associated with increased risk of stroke, but not of ischemic heart disease, whereas an association with mortality probably reflects that low T is a marker of poor health. Globally, neither severity of clinical consequences attributable to low T nor the nature and magnitude of beneficial treatment effects justify the concept of some broadly applied "T replacement therapy" in older men with low T. Moreover, long-term safety of T therapy is not established.
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Affiliation(s)
- Jean-Marc Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Bruno Lapauw
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ahmed Mahmoud
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Guy T'Sjoen
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ilpo Tapani Huhtaniemi
- Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.,Department of Physiology, Institute of Biomedicine, University of Turku, Turku, Finland
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Park JM, Lee HS, Oh J, Lee YJ. Serum Testosterone Level Within Normal Range Is Positively Associated with Nonalcoholic Fatty Liver Disease in Premenopausal but Not Postmenopausal Women. J Womens Health (Larchmt) 2019; 28:1077-1082. [DOI: 10.1089/jwh.2018.7263] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Jae-Min Park
- Department of Family Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Sun Lee
- Biostatistics Collaboration Unit, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joowon Oh
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Yong-Jae Lee
- Department of Family Medicine, Yonsei University College of Medicine, Seoul, Korea
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53
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Jiang B, Chen Y, Zhou K, Zheng Y, Chen Y, Li Q, Zhu C, Xia F, Gu T, Guo Y, Lu Y. Comparison of Abdominal Obesity and Fatty Liver and Their Association with Insulin Resistance and Metabolic Syndrome in Chinese Adults. Obesity (Silver Spring) 2019; 27:707-715. [PMID: 30942551 DOI: 10.1002/oby.22432] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/12/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the similarities and differences between nonalcoholic fatty liver (FL) disease (NAFLD) and abdominal obesity in their association with insulin resistance and metabolic syndrome (MetS). METHODS The Survey on Prevalence in East China for Metabolic Diseases and Risk Factors (SPECT-China) is a population-based survey of Chinese adults. A total of 9,685 participants (median age, 53 years; interquartile range, 44-63) were grouped into four categories by waist circumference (WC) and NAFLD status: NWC/FL(-), NWC/FL(+), HWC/FL(-), and HWC/FL(+) [FL(-), without NAFLD; FL(+), with NAFLD; HWC, higher WC; NWC, normal WC]. Logistic regression models were used to obtain the odds ratios as estimates of the associations between different categories and MetS. RESULTS Male participants with HWC/FL(-) had higher homeostatic model assessment for insulin resistance scores than subjects with NWC/FL(+), but female subjects showed the opposite results. Compared with NWC/FL(+), HWC was associated with an increased likelihood of blood pressure disorder and a decreased likelihood of triglyceride and blood glucose disorders in men, but in women, HWC was associated with only a lower likelihood of triglyceride disorder. Despite these differences, patients with NWC/FL(+) and HWC/FL(-) had almost equally serious degrees of metabolic disorders (MetS z score). CONCLUSIONS There are significant differences between sexes regarding the association between NAFLD and abdominal obesity status and MetS components.
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Affiliation(s)
- Boren Jiang
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yingchao Chen
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Kun Zhou
- Department of Gastroenterology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanjun Zheng
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Chen
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qin Li
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunfang Zhu
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fangzhen Xia
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ting Gu
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuyu Guo
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yingli Lu
- Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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54
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Oh S, Oshida N, Someya N, Maruyama T, Isobe T, Okamoto Y, Kim T, Kim B, Shoda J. Whole-body vibration for patients with nonalcoholic fatty liver disease: a 6-month prospective study. Physiol Rep 2019; 7:e14062. [PMID: 31087530 PMCID: PMC6513769 DOI: 10.14814/phy2.14062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/13/2019] [Accepted: 03/16/2019] [Indexed: 01/14/2023] Open
Abstract
Physical exercise has demonstrated benefits for managing nonalcoholic fatty liver disease (NAFLD). However, in daily life maintaining exercise without help may be difficult. A whole-body vibration device (WBV) has been recently introduced as an exercise modality that may be suitable for patients who have difficulty engaging in exercise. We tested WBV in patients with NAFLD and estimated its effectiveness. We studied the effects of a 6-month WBV program on hepatic steatosis and its underlying pathophysiology in 25 patients with NAFLD. Seventeen patients with NAFLD were designated as a control group. After WBV exercise, body weight in the study group decreased by only 2.5% compared with the control group. However, we found significant increases in muscle area (+2.6%) and strength (+20.5%) and decreases in fat mass (-6.8%). The hepatic (-9.9%) and visceral (-6.2%) fat content also significantly decreased (P < 0.05). There was substantial lowering of hepatic stiffness (-15.7%), along with improvements in the levels of inflammatory markers; tumor necrosis factor alpha (-50.9%), adiponectin (+12.0%), ferritin (-33.2%), and high-sensitivity C-reactive protein (-43.0%) (P < 0.05). These results suggest that WBV is an exercise option for patients with NAFLD that is effective, efficient, and convenient.
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Affiliation(s)
- Sechang Oh
- The Center of Sports Medicine and Health SciencesTsukuba University HospitalTsukubaIbarakiJapan
- Faculty of MedicineUniversity of TsukubaTsukubaIbarakiJapan
| | - Natsumi Oshida
- The Center of Sports Medicine and Health SciencesTsukuba University HospitalTsukubaIbarakiJapan
- Graduate School of Comprehensive Human SciencesUniversity of TsukubaTsukubaIbarakiJapan
| | - Noriko Someya
- Graduate School of Comprehensive Human SciencesUniversity of TsukubaTsukubaIbarakiJapan
| | - Tsuyoshi Maruyama
- Department of RehabilitationUniversity of Tsukuba HospitalTsukubaIbarakiJapan
| | - Tomonori Isobe
- Faculty of MedicineUniversity of TsukubaTsukubaIbarakiJapan
- Department of Diagnostic RadiologyUniversity of Tsukuba HospitalTsukubaIbarakiJapan
| | - Yoshikazu Okamoto
- Faculty of MedicineUniversity of TsukubaTsukubaIbarakiJapan
- Department of Diagnostic RadiologyUniversity of Tsukuba HospitalTsukubaIbarakiJapan
| | - Taeho Kim
- The Center of Sports Medicine and Health SciencesTsukuba University HospitalTsukubaIbarakiJapan
| | - Bokun Kim
- Faculty of Sports Health CareInje UniversityGimhaeGyeongsangnamdoRepublic of Korea
| | - Junichi Shoda
- The Center of Sports Medicine and Health SciencesTsukuba University HospitalTsukubaIbarakiJapan
- Faculty of MedicineUniversity of TsukubaTsukubaIbarakiJapan
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55
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Grossmann M, Wierman ME, Angus P, Handelsman DJ. Reproductive Endocrinology of Nonalcoholic Fatty Liver Disease. Endocr Rev 2019; 40:417-446. [PMID: 30500887 DOI: 10.1210/er.2018-00158] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 11/19/2018] [Indexed: 02/07/2023]
Abstract
The liver and the reproductive system interact in a multifaceted bidirectional fashion. Sex steroid signaling influences hepatic endobiotic and xenobiotic metabolism and contributes to the pathogenesis of functional and structural disorders of the liver. In turn, liver function affects the reproductive axis via modulating sex steroid metabolism and transport to tissues via sex hormone-binding globulin (SHBG). The liver senses the body's metabolic status and adapts its energy homeostasis in a sex-dependent fashion, a dimorphism signaled by the sex steroid milieu and possibly related to the metabolic costs of reproduction. Sex steroids impact the pathogenesis of nonalcoholic fatty liver disease, including development of hepatic steatosis, fibrosis, and carcinogenesis. Preclinical studies in male rodents demonstrate that androgens protect against hepatic steatosis and insulin resistance both via androgen receptor signaling and, following aromatization to estradiol, estrogen receptor signaling, through regulating genes involved in hepatic lipogenesis and glucose metabolism. In female rodents in contrast to males, androgens promote hepatic steatosis and dysglycemia, whereas estradiol is similarly protective against liver disease. In men, hepatic steatosis is associated with modest reductions in circulating testosterone, in part consequent to a reduction in circulating SHBG. Testosterone treatment has not been demonstrated to improve hepatic steatosis in randomized controlled clinical trials. Consistent with sex-dimorphic preclinical findings, androgens promote hepatic steatosis and dysglycemia in women, whereas endogenous estradiol appears protective in both men and women. In both sexes, androgens promote hepatic fibrosis and the development of hepatocellular carcinoma, whereas estradiol is protective.
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Affiliation(s)
- Mathis Grossmann
- Department of Medicine Austin Health, University of Melbourne, Heidelberg, Victoria, Australia.,Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
| | - Margaret E Wierman
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado.,Research Service, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colorado
| | - Peter Angus
- Department of Medicine Austin Health, University of Melbourne, Heidelberg, Victoria, Australia.,Departments of Gastroenterology and Hepatology, Heidelberg, Victoria, Australia
| | - David J Handelsman
- ANZAC Research Institute, University of Sydney, Concord Hospital, Sydney, New South Wales, Australia
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56
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Portillo-Sanchez P, Bril F, Lomonaco R, Barb D, Orsak B, Bruder JM, Cusi K. Effect of pioglitazone on bone mineral density in patients with nonalcoholic steatohepatitis: A 36-month clinical trial. J Diabetes 2019; 11:223-231. [PMID: 30073778 DOI: 10.1111/1753-0407.12833] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 07/31/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The effects of pioglitazone on bone metabolism are unclear. This study evaluated the long-term effects of pioglitazone on bone mineral density (BMD) and bone metabolism in patients with prediabetes or type 2 diabetes mellitus (T2DM) and non-alcoholic steatohepatitis (NASH). METHODS Ninety-two patients with prediabetes or T2DM and biopsy-proven NASH with BMD and baseline biochemical bone measurements were included. Patients (mean [±SEM] age 51 ± 1 years, 71% male, mean body mass index 34.5 ± 0.5 kg/m2 ) were randomly assigned to pioglitazone (45 mg/day) or placebo for 18 months, followed by an 18-month open-label pioglitazone treatment phase. Baseline, 18- and 36-month evaluations included plasma vitamin D and bone turnover biomarker levels, and BMD measurements at the spine, femoral neck, total hip, and one-third radius. RESULTS After 18 months of pioglitazone treatment, there were no differences in BMD versus placebo at either the femoral neck (P =0.87), total hip (P =0.78), or one-third radius (P =0.44); however, bone density decreased at the level of the spine with pioglitazone (-3.5%; P =0.002). During the extension phase (18-36 months), patients had no further decreases in BMD or plasma biomarkers of bone turnover during pioglitazone treatment. No patient experienced a low-energy bone fracture. CONCLUSIONS Treatment of patients with prediabetes or T2DM with pioglitazone for up to 3 years was associated with decreased BMD at the level of the lumbar spine. This reduction in BMD at the lumbar spine at 18 months versus placebo suggests an early deleterious effect of pioglitazone on bone metabolism.
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Affiliation(s)
- Paola Portillo-Sanchez
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, Florida, USA
- Division of Endocrinology, Diabetes and Metabolism, Malcom Randall Veterans Administration Medical Center (VAMC), Gainesville, Florida, USA
| | - Fernando Bril
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, Florida, USA
- Division of Endocrinology, Diabetes and Metabolism, Malcom Randall Veterans Administration Medical Center (VAMC), Gainesville, Florida, USA
| | - Romina Lomonaco
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, Florida, USA
- Division of Endocrinology, Diabetes and Metabolism, Malcom Randall Veterans Administration Medical Center (VAMC), Gainesville, Florida, USA
| | - Diana Barb
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, Florida, USA
- Division of Endocrinology, Diabetes and Metabolism, Malcom Randall Veterans Administration Medical Center (VAMC), Gainesville, Florida, USA
| | - Beverly Orsak
- Diabetes Division, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Jan Marie Bruder
- Division of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Kenneth Cusi
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, Florida, USA
- Division of Endocrinology, Diabetes and Metabolism, Malcom Randall Veterans Administration Medical Center (VAMC), Gainesville, Florida, USA
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Hackett G. Metabolic Effects of Testosterone Therapy in Men with Type 2 Diabetes and Metabolic Syndrome. Sex Med Rev 2019; 7:476-490. [PMID: 30803918 DOI: 10.1016/j.sxmr.2018.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/10/2018] [Accepted: 12/13/2018] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Up to 40% of men with type 2 diabetes (T2DM) and metabolic syndrome (MetS) have hypogonadotrophic hypogonadism (HH). Men with HH are at increased risk of cardiovascular (CV) and all-cause mortality, as well as of the development of incident T2DM. AIM To review the current literature on the metabolic effects of testosterone therapy (TTh) in men with T2DM and MetS. METHODS We searched MEDLINE, Embase, and Cochrane Reviews for articles on T2DM, HH, testosterone deficiency, and CV and all-cause mortality published between May 2005 and July 2018, yielding 1817 articles, including 54 clinical trials and 32 randomized controlled trials (RCTs). MAIN OUTCOME MEASURES The main outcomes were glycemic control, insulin resistance, lipid profile, and metabolic markers associated with increased CV risk. RESULTS RCTs of TTh suggest significant benefits for sexual function, quality of life, glycemic control, insulin sensitivity, anemia, bone density, and fat and lean muscle mass that might be expected to translate into reduced long-term morbidity and mortality. Several longitudinal and observational studies suggest long-term sustained improvements in metabolic parameters and a trend toward reduced CV and all-cause mortality, especially in men at increased CV risk, such as those with T2DM and MetS. The greatest benefit is seen in those men treated with TTh to target levels and for longer durations. CONCLUSION Meta-analyses of RCTs, rather than providing clarification, may have further confused the issue by including underpowered studies of inadequate duration, multiple therapy regimens, some obsolete or withdrawn, and built-in bias in terms of studies included or excluded from analysis. Hackett G. Metabolic Effects of Testosterone Therapy in Men with Type 2 Diabetes and Metabolic Syndrome. Sex Med Rev 2019;7:476-490.
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Affiliation(s)
- Geoffrey Hackett
- Department of Urology, University Hospitals Birmingham NHS Foundation Trust and University of Aston, Birmingham, United Kingdom.
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58
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Paternostro R, Heinisch BB, Reiberger T, Mandorfer M, Bardach C, Lampichler K, Seeland B, Schwarzer R, Trauner M, Peck‐Radosavljevic M, Ferlitsch A. Dysbalanced sex hormone status is an independent predictor of decompensation and mortality in patients with liver cirrhosis. Hepatol Res 2019; 49:201-211. [PMID: 30248213 PMCID: PMC7379971 DOI: 10.1111/hepr.13253] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 12/18/2022]
Abstract
AIMS Endocrinological abnormalities, including low testosterone levels, are prevalent in cirrhosis. We assessed sexual hormone status in regard to hemodynamic abnormalities and its impact on hepatic decompensation and survival. METHODS Males with cirrhosis were prospectively included in this study since 2010. Sexual hormones including bioavailable testosterone, total testosterone, luteinizing hormone, follicle-stimulating hormone, prolactin, and sex hormone-binding globulin as well as Child-Pugh score, Model for End-stage Liver Disease (MELD) score, and hepatic venous pressure gradient were recorded. Sarcopenia was also assessed in patients with available computed tomography scans. Clinical follow-up for hepatic decompensation, liver transplantation, and death was recorded until May 2017. RESULTS One hundred fourteen male cirrhotic patients were included: age 55 ± 9.4 years, MELD 13.5 (range, 7-20.7). Etiologies were alcoholic liver disease in 61(53.5%) patients, viral in 30 (26.3%) patients, and other in 23 (20.2%). Child-Pugh scores were A in 32 (28.1%) patients, B in 48 (42.1%), and C in 34 (29.8%). Levels of bioavailable testosterone and total testosterone decreased with advanced Child-Pugh score (P < 0.001 and P < 0.001) whereas prolactin increased (P = 0.002). Median bioavailable testosterone (0.8 ng/mL [0.1-2] vs. 1.68 ng/mL [0.07-2.65]; P = 0.004) and total testosterone (2.7 ng/mL [0.23-12.34] vs. 7 ng/mL [0.25-10]; P = 0.041) levels were lower in patients with severe portal hypertension (hepatic venous pressure gradient >12 mmHg). Median bioavailable testosterone (0.25 ng/mL [0.07-1.7] vs. 0.97 ng/mL [0.15-2.74)]; P = 0.017) and total testosterone levels (1.28 ng/mL [0.25-7.32] vs. 4.32 ng/mL [0.43-13.47]; P = 0.031) were significantly lower in sarcopenic patients. Median follow-up was 13 months (0.2-75 months) and liver-related events were recorded in 46 patients (40.4%; death, 31 [27.2%]). Low total testosterone was associated with an increased risk for hepatic decompensation and/or death, even after adjusting for Child-Pugh score, MELD, and other relevant factors (Child-Pugh score model: hazard ratio 2.503, 95% confidence interval, 1.214-5.157, P = 0.013; MELD model: hazard ratio 3.065, 95% confidence interval, 1.523-6.169, P = 0.002). CONCLUSION In parallel to increasing severity of cirrhosis, levels of testosterone decline whereas prolactin levels increase. However, low testosterone levels are independently associated with a higher risk for hepatic decompensation and mortality.
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Affiliation(s)
- Rafael Paternostro
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Birgit B. Heinisch
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Thomas Reiberger
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Mattias Mandorfer
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Constanze Bardach
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Katharina Lampichler
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Berit Seeland
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Remy Schwarzer
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Michael Trauner
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
| | - Markus Peck‐Radosavljevic
- Division of Gastroenterology, Hepatology, Endocrinology and NephrologyKlinikum Klagenfurt am WörtherseeKlagenfurtAustria
| | - Arnulf Ferlitsch
- Vienna Hepatic Hemodynamic Laboratory, Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
- Divison of Gastroenterology and Hepatology, Department of Internal Medicine IIIMedical University of ViennaViennaAustria
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Kurku H, Atar M, Pirgon Ö, Büyükinan M, Erdem SS, Deniz İ, Gederet YT. Pubertal Status and Gonadal Functions in Obese Boys with Fatty Liver. Metab Syndr Relat Disord 2019; 17:102-107. [PMID: 30614770 DOI: 10.1089/met.2018.0050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND In adult studies, obese subjects with nonalcoholic fatty liver disease (NAFLD) have been shown to have poor sperm quality, and lower testosterone and luteinizing hormone levels. The aim of this study was to investigate the pubertal status and gonadal functions in obese boys with NAFLD. MATERIALS AND METHODS The study included 119 obese and 78 nonobese age-matched adolescents. The obese boys were separated into two groups based on the presence (NAFLD group) or absence of liver steatosis with high transaminases (non-NAFLD group). The levels of serum AMH (anti-Mullerian hormone), inhibin B, gonadotropins, total testosterone, lipids, high-sensitivity C-reactive protein, fasting glucose, insulin levels, and aortic intima media thickness were measured in all subjects. RESULTS Of the total 197 children, 174 had reached puberty. There were no significant differences between the groups in respect of testicular sizes and the prevalence of pubertal status among the groups (84.3% of NAFLD vs. 70.6% of non-NAFLD vs. 98.7% of control subjects). No significant differences were found in respect of gonadotropins and AMH levels. Total testosterone levels in the NAFLD group were significantly lower than those of the non-NAFLD obese group (P < 0.001) and the control group (P < 0.001). Inhibin B levels were also significantly lower in all (NAFLD and non-NAFLD) obese groups compared to the control group (P = 0.008). CONCLUSIONS The results of the study demonstrated that diminished testosterone and inhibin B levels occur in pubertal obese boys with NAFLD. No significant differences were detected according to pubertal status, AMH levels, and testicular volumes in the age-matched groups.
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Affiliation(s)
- Hüseyin Kurku
- 1 Department of Biochemistry, University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
| | - Müge Atar
- 2 Department of Pediatric Endocrinology and Diabetes, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Özgür Pirgon
- 2 Department of Pediatric Endocrinology and Diabetes, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Muammer Büyükinan
- 3 Department of Pediatric Endocrinology and Diabetes and University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
| | - Said Sami Erdem
- 1 Department of Biochemistry, University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
| | - İsa Deniz
- 4 Department of Radiology, University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
| | - Yavuz Turgut Gederet
- 1 Department of Biochemistry, University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
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60
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Himoto T, Fujita K, Sakamoto T, Nomura T, Morishita A, Yoneyama H, Haba R, Masaki T. Clinical efficacy of free androgen index, a surrogate hallmark of circulating free testosterone level, in male patients with HCV-related chronic liver disease. J Clin Biochem Nutr 2018; 63:238-245. [PMID: 30487676 PMCID: PMC6252299 DOI: 10.3164/jcbn.18-30] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 03/28/2018] [Indexed: 12/15/2022] Open
Abstract
The role of free testosterone, that not bound to sex hormone-binding globulin, in male patients with HCV infection remains uncertain. We investigated whether free testosterone is involved in the progression to hepatic fibrosis/steatosis or insulin resistance in male patients with HCV-related chronic liver disease or not. Free androgen indices, which reflect circulating free testosterone levels, were calculated as 100 × total testosterone levels/sex hormone-binding globulin levels in 30 male patients with HCV-related chronic liver disease. Degrees of hepatic fibrosis and steatosis were evaluated by the New Inuyama Classification and the classification proposed by Brunt and colleagues, respectively. Insulin resistance was estimated by HOMA-IR values. Serum total testosterone levels were independent of hepatic fibrosis staging in the enrolled patients. However, circulating sex hormone-binding globulin levels were significantly increased in proportion to the severity of hepatic fibrosis. Therefore, free androgen indices were inversely correlated with the severity of hepatic fibrosis. Moreover, free androgen indices were inversely correlated with the grades of hepatic steatosis and HOMA-IR values in those patients. Our data suggest that lower circulating free testosterone levels may be recognized as the risk factor for more advanced hepatic fibrosis, steatosis and/or higher insulin resistance in male patients with HCV-related chronic liver disease.
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Affiliation(s)
- Takashi Himoto
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, 281-1 Hara, Mure-Cho, Takamatsu, Kagawa 761-0123, Japan
| | - Koji Fujita
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Teppei Sakamoto
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Takako Nomura
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Asahiro Morishita
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Hirohito Yoneyama
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Reiji Haba
- Department of Diagnosis Pathology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki-Cho, Kagawa 761-0793, Japan
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61
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Yang Q, Wu K, Zhuang Y, Wu H, Lu L, Li W, Li Z, Sui X. Association of total testosterone, free testosterone, bioavailable testosterone and sex hormone-binding globulin with hepatic steatosis and the ratio of aspartate aminotransferase to alanine aminotransferase. Endocr J 2018; 65:915-921. [PMID: 29910248 DOI: 10.1507/endocrj.ej18-0095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Several articles have shown the inverse association between total testosterone (TT) or sex hormone-binding globulin (SHBG) and hepatic steatosis. No articles report associations of TT, SHBG, free testosterone (FT), and bioavailable testosterone (BioT) with aspartate aminotransferase (AST)/alanine aminotransferase (ALT) ratios. Therefore, we investigated the associations of TT, FT, BioT and SHBG with hepatic steatosis and AST/ALT ratios. A total of 218 men were enrolled. We diagnosed hepatic steatosis by ultrasound. TT and SHBG showed a reduced risk for hepatic steatosis when analyzed with or without adjusting for age, smoking, alcohol consumption and physical activity. Compared with the lowest quartile, the ORs for hepatic steatosis in the third and fourth quartiles (0.32 [95% CI: 0.14-0.75] and 0.27 [95% CI: 0.10-0.73], respectively) of SHBG were significantly lower after adjustments. The OR for hepatic steatosis in the fourth quartile of TT (0.41 [95% CI: 0.17-0.95]) was significantly lower than in the lowest quartile after adjustments. The mean AST/ALT ratios in men with hepatic steatosis were lower than those without hepatic steatosis (0.83 and 1.04, respectively), due to the elevated ALT levels in hepatic steatosis groups. Furthermore, TT and SHBG were positively associated with AST/ALT ratios with and without adjustments. In conclusion, higher TT and SHBG levels in men are associated with the reduced risk of hepatic steatosis and elevated AST/ALT ratios, independent of age, smoking, alcohol consumption and physical activity.
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Affiliation(s)
- Qingtao Yang
- Department of Urology, the Second Affiliated Hospital of Shantou University Medical College, Shantou 515041, China
| | - Kusheng Wu
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, China
| | - Yiyi Zhuang
- 2013 Grade, Students of Five-Year Clinical Medicine, Shantou University Medical College, Shantou 515041, China
| | - Haoqiang Wu
- 2013 Grade, Students of Five-Year Clinical Medicine, Shantou University Medical College, Shantou 515041, China
| | - Liang Lu
- 2013 Grade, Students of Five-Year Clinical Medicine, Shantou University Medical College, Shantou 515041, China
| | - Wencai Li
- 2013 Grade, Students of Five-Year Clinical Medicine, Shantou University Medical College, Shantou 515041, China
| | - Zhenjie Li
- 2012 Grade, Students of Seven-Year Clinical Medicine, Shantou University Medical College, Shantou 515041, China
| | - Xuxia Sui
- Laboratory of Pathogenic Biology, Shantou University Medical College, Shantou 515041, China
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62
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Gild P, Cole AP, Krasnova A, Dickerman BA, von Landenberg N, Sun M, Mucci LA, Lipsitz SR, Chun FKH, Nguyen PL, Kibel AS, Choueiri TK, Basaria S, Trinh QD. Liver Disease in Men Undergoing Androgen Deprivation Therapy for Prostate Cancer. J Urol 2018; 200:573-581. [DOI: 10.1016/j.juro.2018.03.135] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Philipp Gild
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alexander P. Cole
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Anna Krasnova
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Barbra A. Dickerman
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Nicolas von Landenberg
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Urology, Marien Hospital Herne, Ruhr-University Bochum, Herne, Germany
| | - Maxine Sun
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Lorelei A. Mucci
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Stuart R. Lipsitz
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Felix K.-H. Chun
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Paul L. Nguyen
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston, Massachusetts
| | - Adam S. Kibel
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Toni K. Choueiri
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Shehzad Basaria
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Quoc-Dien Trinh
- Center for Surgery and Public Health, Division of Urological Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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63
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Skubic C, Drakulić Ž, Rozman D. Personalized therapy when tackling nonalcoholic fatty liver disease: a focus on sex, genes, and drugs. Expert Opin Drug Metab Toxicol 2018; 14:831-841. [PMID: 29969922 DOI: 10.1080/17425255.2018.1492552] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Nonalcoholic fatty liver disease (NAFLD) is the most frequent liver disease in the world. It describes a term for a group of hepatic diseases including steatosis, fibrosis, and cirrhosis that can finally lead to hepatocellular carcinoma. There are many factors influencing NAFLD initiation and progression, such as obesity, dyslipidemia, insulin resistance, genetic factors, and hormonal changes. However, there is also lean-NAFLD which is not associated with obesity. NAFLD is considered to be a sexually dimorphic disease. In most cases, men have a higher prevalence for the disease compared to premenopausal women. Areas covered: In this review, we first summarize the NAFLD disease epidemiology, pathology, and diagnosis. We describe NAFLD progression with the focus on sexual and genetic differences for disease development and pharmacological treatment. Personalized treatment for multifactorial NAFLD is discussed in consideration of different factors, including genetics, gender and sex. Expert opinion: The livers of female and male NAFLD patients have different metabolic capacities which influence the metabolism of all drugs applied to such patients. This aspect is not yet sufficiently taken into account. The liver computational models might quicken the pace toward assessing personalized disease progression and treatment options.
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Affiliation(s)
- Cene Skubic
- a Centre for Functional Genomic and Biochips, Institute of Biochemistry, Faculty of Medicine , University of Ljubljana , Ljubljana , Slovenia
| | - Živa Drakulić
- a Centre for Functional Genomic and Biochips, Institute of Biochemistry, Faculty of Medicine , University of Ljubljana , Ljubljana , Slovenia
| | - Damjana Rozman
- a Centre for Functional Genomic and Biochips, Institute of Biochemistry, Faculty of Medicine , University of Ljubljana , Ljubljana , Slovenia
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64
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Mohammadghasemi F, Abbasi M, Rudkhaneei K, Aghajany-Nasab M. Beneficial effect of apple vinegar on reproductive parameters in male rat model of nonalcoholic fatty liver disease. Andrologia 2018; 50:e13065. [DOI: 10.1111/and.13065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 04/18/2018] [Accepted: 05/06/2018] [Indexed: 12/17/2022] Open
Affiliation(s)
- Fahimeh Mohammadghasemi
- Cellular & Molecular Research Center; School Of Medicine; Guilan University of Medical Sciences; Rasht Iran
| | - Masumeh Abbasi
- Department Of Anatomy; School Of Medicine; Guilan University of Medical Sciences; Rasht Iran
| | - Kamran Rudkhaneei
- Department Of Anatomy; School Of Medicine; Guilan University of Medical Sciences; Rasht Iran
| | - Monireh Aghajany-Nasab
- Cellular & Molecular Research Center; School Of Medicine; Guilan University of Medical Sciences; Rasht Iran
- Department Of Biochemistry & Biophysic; School Of Medicine; Guilan University of Medical Sciences; Rasht Iran
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65
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Wang T, Yang W, Karakas S, Sarkar S. NASH in Nondiabetic Endocrine Disorders. Metab Syndr Relat Disord 2018; 16:315-320. [PMID: 29873585 DOI: 10.1089/met.2018.0044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) encompasses a spectrum of disease, including hepatic steatosis, inflammation, and fibrosis. NAFLD carries the risk of progression to cirrhosis with its associated complications and hepatocellular carcinoma. It is now the most common liver disease in the Western world and its prevalence is increasing. While the association between NAFLD and type 2 diabetes has been well documented, there is significantly less understanding of the pathophysiology and progression of NAFLD in patients with other endocrine disorders affecting metabolism in various ways. Some of the more common endocrine disorders such as polycystic ovarian syndrome, growth hormone deficiency, hypothyroidism, and hypogonadism are known in clinical practice to be associated with NAFLD. Medications that alter the endocrine system such as tamoxifen and adrenal steroids have also been attributed to significant NAFLD. The key to management of NAFLD at this time are dietary changes and exercise to achieve weight loss. Unfortunately, a large proportion of the patients with these endocrine disorders are unable to achieve either. This review aims to examine and summarize the current published literature that have evaluated the association between NAFLD and the above endocrine disorders and potential therapeutic interventions in each case.
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Affiliation(s)
- Timothy Wang
- 1 Department of Internal Medicine, University of California , Davis, Sacramento, California
| | - Wei Yang
- 1 Department of Internal Medicine, University of California , Davis, Sacramento, California.,2 Division of Endocrinology, University of California , Davis, Sacramento, California
| | - Sidika Karakas
- 1 Department of Internal Medicine, University of California , Davis, Sacramento, California.,2 Division of Endocrinology, University of California , Davis, Sacramento, California
| | - Souvik Sarkar
- 1 Department of Internal Medicine, University of California , Davis, Sacramento, California.,3 Division of Gastroenterology and Hepatology, University of California , Davis, Sacramento, California
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66
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Jia Y, Yee JK, Wang C, Nikolaenko L, Diaz-Arjonilla M, Cohen JN, French SW, Liu PY, Lue Y, Lee WNP, Swerdloff RS. Testosterone protects high-fat/low-carbohydrate diet-induced nonalcoholic fatty liver disease in castrated male rats mainly via modulating endoplasmic reticulum stress. Am J Physiol Endocrinol Metab 2018; 314:E366-E376. [PMID: 28928235 PMCID: PMC5966753 DOI: 10.1152/ajpendo.00124.2017] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We previously showed that testosterone (T) deficiency enhanced high-fat/low-carbohydrate diet (HFD)-induced hepatic steatosis in rats independent of insulin resistance and that T replacement reduced hepatic macrovesicular fat accumulation and inflammation. The present report explores the mechanism of T's protective effects on HFD-induced steatohepatitis. Adult male rats were randomized into four treatment groups for 15 wk: intact rats on regular chow diet or HFD, and castrated rats on HFD with or without T replacement. Fatty acid β-oxidation and de novo synthesis were not changed by castration and T replacement, but expression of lipid export proteins ApoB100 and microsomal triglyceride transfer protein (MTP) was suppressed by HFD in both intact and castrated rats but restored by T replacement. Macrovesicular lipid droplet-related proteins perilipin 1 and fat-specific protein 27 were increased by HFD in castrated rats and suppressed by T replacement. Higher activation/expression of ER stress proteins (PERK, IRE-1α, JNK, NF-κB, and CHOP) was demonstrated in castrated rats fed HFD compared with intact animals, and T replacement suppressed these changes. We conclude that 1) HFD leads to ApoB100/MTP suppression reducing export of lipids; 2) castration promotes progression to steatohepatitis through activation of the ER stress pathway and enhancement of macrovesicular droplet protein expression; and 3) testosterone suppresses ER stress, inhibits the formation of macrovesicular lipid droplets, promotes lipid export, and ameliorates steatohepatitis induced by HFD and castration.
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Affiliation(s)
- Yue Jia
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Jennifer K Yee
- Department and Endocrinology, Department of Pediatrics, Harbor-UCLA Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Christina Wang
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Liana Nikolaenko
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Maruja Diaz-Arjonilla
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Joshua N Cohen
- Department and Endocrinology, Department of Pediatrics, Harbor-UCLA Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Samuel W French
- Department of Pathology, Harbor-UCLA Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Peter Y Liu
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - YanHe Lue
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Wai-Nang P Lee
- Department and Endocrinology, Department of Pediatrics, Harbor-UCLA Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
| | - Ronald S Swerdloff
- Division of Endocrinology, Department of Medicine, Harbor-University of California, Los Angeles (UCLA), Medical Center , Torrance, California
- Department of Pathology, Harbor-UCLA Medical Center , Torrance, California
- Los Angeles Biomedical Research Institute , Torrance, California
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67
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Miyauchi S, Miyake T, Miyazaki M, Eguchi T, Niiya T, Yamamoto S, Senba H, Furukawa S, Matsuura B, Hiasa Y. Free testosterone concentration is inversely associated with markers of liver fibrosis in men with type 2 diabetes mellitus. Endocr J 2017; 64:1137-1142. [PMID: 28890481 DOI: 10.1507/endocrj.ej17-0225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The association between serum testosterone level and liver fibrosis in patients with non-alcoholic fatty liver disease is unclear. To clarify this association, we investigated the relationship between serum free testosterone concentration and markers of liver fibrosis in men with type 2 diabetes mellitus but no obvious features of alcohol consumption. This retrospective observational cross-sectional study enrolled 248 men with type 2 diabetes mellitus. The FIB-4 index was measured as a marker of liver fibrosis, and multiple linear regression analysis was performed to examine its association with serum free testosterone concentration. In addition, the 7S domain of type IV collagen (IV-7S) was examined in 140 of the 248 patients. The mean free testosterone concentration was 10.6 ± 6.8 pg/mL and the means of the FIB-4 index and IV-7S were 1.64 ± 1.19 and 4.02 ± 1.11 ng/mL, respectively. After adjusting for all relevant variables, serum free testosterone concentrations were inversely associated with both the FIB-4 index and IV-7S (β; -0.28, P < 0.0001, and β; -0.28, P = 0.002, respectively). Measuring serum free testosterone concentrations in men with type 2 diabetes mellitus may help to predict progression to advanced liver disease. Identifying patients at risk may help to prevent the development of cirrhosis and hepatocellular carcinoma.
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Affiliation(s)
- Shozo Miyauchi
- Department of Internal Medicine, Uwajima City Hospital, Uwajima, Japan
| | - Teruki Miyake
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masumi Miyazaki
- Department of Internal Medicine, Uwajima City Hospital, Uwajima, Japan
| | - Toru Eguchi
- Department of Diabetology, Endocrinology and Metabolism, Shimonoseki City Hospital, Shimonoseki, Japan
| | - Tetsuji Niiya
- Department of Internal Medicine, Matsuyama Shimin Hospital, Matsuyama, Japan
| | - Shin Yamamoto
- Department of Lifestyle-related Medicine, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hidenori Senba
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shinya Furukawa
- Department of Epidemiology and Preventive Medicine, Ehime University Graduate School of Medicine, Toon, Japan
| | - Bunzo Matsuura
- Department of Lifestyle-related Medicine, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoichi Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Japan
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68
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Effect of neonatal orally administered S-allyl cysteine in high-fructose diet fed Wistar rats. J Dev Orig Health Dis 2017; 9:160-171. [PMID: 29151399 DOI: 10.1017/s2040174417000940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
S-allyl cysteine (SAC) has antioxidant, antidiabetic and antiobesity properties. We hypothesized that neonatal oral administration of SAC would protect rats against neonatal and adulthood high-fructose diet-induced adverse metabolic outcomes in adulthood. In total, 112 (males=56; females=56), 4-day-old Wistar rat pups were randomly allocated to groups and administered the following treatment regimens daily for 15 days from postnatal day (PND) 6-20: group I - 10 ml/kg distilled water, group II - 10 ml/kg 20% fructose solution (FS), group III - 150 mg/kg SAC and group IV - SAC+FS. On PND 21, the pups were weaned and allowed to grow on a standard rat chow (SRC) until PND 56. The rats from each treatment regimen were then randomly split into two subgroups: one on a SRC and plain drinking water and another on SRC and 20% FS as drinking fluid and then subjected to these treatment regimens for 8 weeks after which they were euthanized and tissues collected for analyzes. Neonatal oral administration of SAC attenuated the neonatal high-fructose diet-induced programming for hepatic lipid accretion in adulthood but not against adulthood high-fructose diet-induced visceral obesity. Neonatal oral administration of SAC programmes for protection against neonatal fructose-induced programming for hepatic lipid accumulation thus could potentially protect against fat-mediated liver derangements in adult life.
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69
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Herrero A, Marcos M, Galindo P, Miralles JM, Corrales JJ. Clinical and biochemical correlates of male hypogonadism in type 2 diabetes. Andrology 2017; 6:58-63. [PMID: 29145714 DOI: 10.1111/andr.12433] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 08/09/2017] [Accepted: 08/29/2017] [Indexed: 01/21/2023]
Abstract
The origin of hypogonadism, a condition including both symptoms and biochemical criteria of androgen deficiency, in type 2 diabetes is poorly known. In a cross-sectional study of 267 unselected patients, we analyzed the potential correlation of several clinical and biochemical variables as well as chronic micro- and macrovascular diabetic complications with hypogonadism. Hypogonadism was present in 46 patients (17.2%) using a cutoff of total testosterone 10.4 nmol/L and in 31 (11.6%) with a cutoff of 8 nmol/L. Among these patients, hypogonadotropic hypogonadism was the most prevalent form (82.6%). Compared to eugonadal subjects, hypogonadal men had significantly lower glomerular filtration rate (67.1 ± 23.4 vs. 78.4 ± 24.6 mL/min/1.73 m2 , p = 0.005) and higher prevalence of chronic kidney disease (43.5% vs. 20.4%, p = 0.002), abnormal liver function tests (26.7% vs. 12%, p = 0.019), and psychiatric treatment (23.9% vs. 10.4%, p = 0.025). Total testosterone levels correlated inversely with age (R = -0.164, p = 0.007), fasting blood glucose (R = -0.127, p = 0.037), and triglycerides (R = -0.134, p = 0.029) and directly with glomerular filtration rate (R = 0.148, p = 0.015). Calculated free testosterone and bioavailable testosterone correlated directly with hemoglobin (R = 0.171, p = 0.015 and R = 0.234, p = 0.001, respectively). Multivariate logistic regression analysis, after adjusting for relevant confounding variables, showed that age >60 years (OR = 3.58, CI 95% = 1.48-8.69, p = 0.005), body mass index >27 kg/m2 (OR = 2.85, CI 95% = 1.14-7.11, p = 0.025), hypertriglyceridemia (OR = 2.16, CI 95% = 1.05-4.41, p = 0.035), glomerular filtration rate <60 mL/min/1.73 m2 (OR = 2.51, CI 95% = 1.19-5.29, p = 0.015), and abnormal liver function tests (OR = 3.57, CI 95% = 1.48-8.60, p = 0.005) were independently associated with male hypogonadism. Although older age, body mass index, and hypertriglyceridemia have been previously related to hypogonadism, our results describe that chronic kidney disease and abnormal liver function tests are independently correlated with hypogonadism in type 2 diabetic men.
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Affiliation(s)
- A Herrero
- Department of Medicine and Service of Endocrinology and Nutrition, University of Salamanca, University Clinical Hospital of Salamanca, Salamanca, Spain
| | - M Marcos
- Department of Medicine and Service of Internal Medicine, University of Salamanca, University Clinical Hospital of Salamanca, Salamanca, Spain
| | - P Galindo
- Department of Statistics, University of Salamanca, Salamanca, Spain
| | - J M Miralles
- Department of Medicine and Service of Endocrinology and Nutrition, University of Salamanca, University Clinical Hospital of Salamanca, Salamanca, Spain
| | - J J Corrales
- Department of Medicine and Service of Endocrinology and Nutrition, University of Salamanca, University Clinical Hospital of Salamanca, Salamanca, Spain.,Cancer Research Institute (IBMCC-CSIC/USAL) and Institute for Biomedical Research of the University of Salamanca, Salamanca, Spain
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70
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Guber RD, Takyar V, Kokkinis A, Fox DA, Alao H, Kats I, Bakar D, Remaley AT, Hewitt SM, Kleiner DE, Liu CY, Hadigan C, Fischbeck KH, Rotman Y, Grunseich C. Nonalcoholic fatty liver disease in spinal and bulbar muscular atrophy. Neurology 2017; 89:2481-2490. [PMID: 29142082 PMCID: PMC5729799 DOI: 10.1212/wnl.0000000000004748] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 09/19/2017] [Indexed: 12/27/2022] Open
Abstract
Objective: To determine the prevalence and features of fatty liver disease in spinal and bulbar muscular atrophy (SBMA). Methods: Two groups of participants with SBMA were evaluated. In the first group, 22 participants with SBMA underwent laboratory analysis and liver imaging. In the second group, 14 participants with SBMA were compared to 13 female carriers and 23 controls. Liver biopsies were done in 4 participants with SBMA. Results: Evidence of fatty liver disease was detected by magnetic resonance spectroscopy in all participants with SBMA in the first group, with an average dome intrahepatic triacylglycerol of 27% (range 6%–66%, ref ≤5.5%). Liver dome magnetic resonance spectroscopy measurements were significantly increased in participants with SBMA in the second group relative to age- and sex-matched controls, with average disease and male control measurements of 17% and 3%, respectively. Liver biopsies were consistent with simple steatosis in 2 participants and nonalcoholic steatohepatitis in 2 others. Conclusions: We observed evidence of nonalcoholic liver disease in nearly all of the participants with SBMA evaluated. These observations expand the phenotypic spectrum of the disease and provide a potential biomarker that can be monitored in future studies.
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Affiliation(s)
- Robert D Guber
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Varun Takyar
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Angela Kokkinis
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Derrick A Fox
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Hawwa Alao
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Ilona Kats
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Dara Bakar
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Alan T Remaley
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Stephen M Hewitt
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - David E Kleiner
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Chia-Ying Liu
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Colleen Hadigan
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Kenneth H Fischbeck
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Yaron Rotman
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD
| | - Christopher Grunseich
- From the Neurogenetics Branch (R.D.G., A.K., D.A.F., I.K., D.B., K.H.F., C.G.), National Institute of Neurological Disorders and Stroke; Liver Diseases Branch (V.T., H.A., Y.R.), National Institute of Diabetes and Digestive and Kidney Diseases; Cardiovascular and Pulmonary Branch (A.T.R.), National Heart Lung & Blood Institute; Laboratory of Pathology (S.M.H., D.E.K.), National Cancer Institute; Radiology and Imaging Sciences (C.-Y.L.), Clinical Center, National Institute of Allergy and Infectious Diseases; and NIH (C.H.), Bethesda, MD.
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Traish AM. Benefits and Health Implications of Testosterone Therapy in Men With Testosterone Deficiency. Sex Med Rev 2017; 6:86-105. [PMID: 29128268 DOI: 10.1016/j.sxmr.2017.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/06/2017] [Accepted: 10/06/2017] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Testosterone (T) deficiency (TD; hypogonadism) has deleterious effects on men's health; negatively affects glycometabolic and cardiometabolic functions, body composition, and bone mineral density; contributes to anemia and sexual dysfunction; and lowers quality of life. T therapy (TTh) has been used for the past 8 decades to treat TD, with positive effects on signs and symptoms of TD. AIM To summarize the health benefits of TTh in men with TD. METHODS A comprehensive literature search was carried out using PubMed, articles relevant to TTh were accessed and evaluated, and a comprehensive summary was synthesized. MAIN OUTCOME MEASURES Improvements in signs and symptoms of TD reported in observational studies, registries, clinical trials, and meta-analyses were reviewed and summarized. RESULTS A large body of evidence provides significant valuable information pertaining to the therapeutic value of TTh in men with TD. TTh in men with TD provides real health benefits for bone mineral density, anemia, sexual function, glycometabolic and cardiometabolic function, and improvements in body composition, anthropometric parameters, and quality of life. CONCLUSION TTh in the physiologic range for men with TD is a safe and effective therapeutic modality and imparts great benefits on men's health and quality of life. Traish AM. Benefits and Health Implications of Testosterone Therapy in Men With Testosterone Deficiency. Sex Med Rev 2018;6:86-105.
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Affiliation(s)
- Abdulmaged M Traish
- Department of Urology, Boston University School of Medicine, Boson, MA, USA.
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72
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Non-alcoholic fatty liver disease is an influencing factor for the association of SHBG with metabolic syndrome in diabetes patients. Sci Rep 2017; 7:14532. [PMID: 29109457 PMCID: PMC5674048 DOI: 10.1038/s41598-017-15232-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/23/2017] [Indexed: 02/07/2023] Open
Abstract
Metabolic syndrome (MS) and non-alcoholic fatty liver disease (NAFLD) have been identified as risk factors affecting serum sex hormone binding globulin (SHBG) levels. We conducted this cross-sectional study to delineate whether MS or NAFLD has more impact on circulating SHBG levels in type 2 diabetes (T2D) patients. Anthropometric and biochemical parameters including serums SHBG, testosterone (TT), liver enzymes, lipids, insulin, C-peptide and plasma glucose were measured. Regardless of the MS status, SHBG level was significantly lower in NAFLD patients than in non-NAFLD patients (P < 0.001). In the multiple linear regression analysis, lower serum SHBG level was strongly correlated with a higher incidence of NAFLD, but not MS components. In logistic regression analyses, after adjusted for age, sex, duration of diabetes, smoking status, and alcohol use, the ORs and 95%CI for presence of MS was 2.26 (95%CI 1.91–2.68) and for presence of NAFLD was 6.36 (95%CI 4.87–8.31) with per one SD decrease in serum SHBG (both P < 0.001). In conclusion, lower serum SHBG is associated with a higher prevalence of NAFLD, compared with MS and other metabolic disorders, in T2D patients. NAFLD might be an important influencing factor for the association of circulating SHBG with MS in T2D patients.
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73
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Schiffer L, Kempegowda P, Arlt W, O’Reilly MW. MECHANISMS IN ENDOCRINOLOGY: The sexually dimorphic role of androgens in human metabolic disease. Eur J Endocrinol 2017; 177:R125-R143. [PMID: 28566439 PMCID: PMC5510573 DOI: 10.1530/eje-17-0124] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/12/2017] [Accepted: 05/03/2017] [Indexed: 12/22/2022]
Abstract
Female androgen excess and male androgen deficiency manifest with an overlapping adverse metabolic phenotype, including abdominal obesity, insulin resistance, type 2 diabetes mellitus, non-alcoholic fatty liver disease and an increased risk of cardiovascular disease. Here, we review the impact of androgens on metabolic target tissues in an attempt to unravel the complex mechanistic links with metabolic dysfunction; we also evaluate clinical studies examining the associations between metabolic disease and disorders of androgen metabolism in men and women. We conceptualise that an equilibrium between androgen effects on adipose tissue and skeletal muscle underpins the metabolic phenotype observed in female androgen excess and male androgen deficiency. Androgens induce adipose tissue dysfunction, with effects on lipid metabolism, insulin resistance and fat mass expansion, while anabolic effects on skeletal muscle may confer metabolic benefits. We hypothesise that serum androgen concentrations observed in female androgen excess and male hypogonadism are metabolically disadvantageous, promoting adipose and liver lipid accumulation, central fat mass expansion and insulin resistance.
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Affiliation(s)
- Lina Schiffer
- Institute of Metabolism and Systems ResearchUniversity of Birmingham, Edgbaston, Birmingham, UK
| | - Punith Kempegowda
- Institute of Metabolism and Systems ResearchUniversity of Birmingham, Edgbaston, Birmingham, UK
| | - Wiebke Arlt
- Institute of Metabolism and Systems ResearchUniversity of Birmingham, Edgbaston, Birmingham, UK
- Centre for EndocrinologyDiabetes and Metabolism, Birmingham Health Partners, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
| | - Michael W O’Reilly
- Institute of Metabolism and Systems ResearchUniversity of Birmingham, Edgbaston, Birmingham, UK
- Centre for EndocrinologyDiabetes and Metabolism, Birmingham Health Partners, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
- Correspondence should be addressed to M W O’Reilly;
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74
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Kautzky-Willer A, Harreiter J. Sex and gender differences in therapy of type 2 diabetes. Diabetes Res Clin Pract 2017; 131:230-241. [PMID: 28779681 DOI: 10.1016/j.diabres.2017.07.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 06/09/2017] [Accepted: 07/07/2017] [Indexed: 12/11/2022]
Abstract
Clinical guidelines for the management of type 2 diabetes recommend individual therapy considering age, duration of disease, presence of complication and risk of hypoglycaemia. However, at present, the patient's sex has no impact on clinical decisions. Yet, there is mounting data pointing at biological and psychosocial differences between men and women with great impact on progression of disease and complications. Moreover, choices and preferences of therapeutic strategies as well as adherence to lifestyle and pharmacological interventions differ in both sexes. In addition, drug therapy may have sex-specific side effects. Therefore, there is need of more research on biological differences and of evidence-based individualised targeted sex-sensitive therapeutic concepts. Clinical guidelines must consider relevant sex-differences. Development and implementation of sex-specific programs may help to improve adherence to therapy and to reduce progression of disease and development of complications. A more gender-sensitive clinical approach may improve quality of life and increase health and life expectancy in men and women with type 2 diabetes.
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Affiliation(s)
- Alexandra Kautzky-Willer
- Gender Medicine Unit, Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria; Gender Medicine Institute, Gars am Kamp, Austria.
| | - Jürgen Harreiter
- Gender Medicine Unit, Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
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Decaroli MC, Rochira V. Aging and sex hormones in males. Virulence 2017; 8:545-570. [PMID: 27831823 PMCID: PMC5538340 DOI: 10.1080/21505594.2016.1259053] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 11/03/2016] [Accepted: 11/07/2016] [Indexed: 01/07/2023] Open
Abstract
Several large cohort studies have disclosed the trajectories of sex steroids changes overtime in men and their clinical significance. In men the slow, physiological decline of serum testosterone (T) with advancing age overlaps with the clinical condition of overt, pathological hypogonadism. In addition, the increasing number of comorbidities, together with the high prevalence of chronic diseases, all further contribute to the decrease of serum T concentrations in the aging male. For all these reasons both the diagnosis of late-onset hypogonadism (LOH) in men and the decision about starting or not T replacement treatment remain challenging. At present, the biochemical finding of T deficiency alone is not sufficient for diagnosing hypogonadism in older men. Coupling hypogonadal symptoms with documented low serum T represents the best strategy to refine the diagnosis of hypogonadism in older men and to avoid unnecessary treatments.
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Affiliation(s)
- Maria Chiara Decaroli
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Vincenzo Rochira
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Azienda USL of Modena, Modena, Italy
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76
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Traish A, Haider KS, Doros G, Haider A. Long-term dutasteride therapy in men with benign prostatic hyperplasia alters glucose and lipid profiles and increases severity of erectile dysfunction. Horm Mol Biol Clin Investig 2017. [PMID: 28632494 DOI: 10.1515/hmbci-2017-0015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background Dutasteride has been successfully used in treatment of lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH). However, dutasteride inhibits 5α-reductase type 1 and type 2 enzymes and may compromises glucocorticoids and androgen metabolism and alters metabolic function resulting in undesirable metabolic and sexual adverse side effects. Aim The aim of this study was to investigate the long-term adverse effects of dutasteride therapy in men with BPH on: i) blood glucose, ii) glycated hemoglobin (HbA1c), iii) low density lipoprotein-cholesterol (LDL-C); high density lipoprotein-cholesterol (HDL-C) and total cholesterol (TC), iv) testosterone (T), v) liver alanine and aspartate aminotransferases (ALT and AST) and vi) erectile dysfunction (ED). Methods A retrospective registry study, with a cohort of 230 men aged between 47 and 68 years (mean 57.78 ± 4.81) were treated with dutasteride (0.5 mg/day) for LUTS, secondary to BPH. A second cohort of 230 men aged between 52 and 72 years (mean 62.62 ± 4.65) were treated with tamsulosin (0.4 mg). All men were followed up for 36-42 months. At intervals of 3-6 months, and at each visit, plasma glucose, HbA1c, TC, LDL-cholesterol, T levels and liver alanine amino transferase (ALT) and aspartate aminotransferase (AST) were determined. Further patient assessment was made by the International Index of Erectile Function (IIEF-EF) questionnaire, the Aging Male Symptom (AMS) and International Prostate Symptom Scores (IPSS). Results Long-term treatment with dutasteride therapy is associated with significant improvements in LUTS, as assessed by reduction in prostate volume, IPSS and prostate specific antigen (PSA). Long-term dutasteride therapy, however, resulted in increased blood glucose, HbA1c, TC and LDL levels, ALT and AST activities, AMS Score and reduced T levels and worsened ED as assessed by the IIEF-EF scores. No worsening of ED, glucose, HbA1c, ALT, AST, AMS were observed in men treated with tamsulosin. Most importantly, long-term dutasteride therapy resulted in reduction in total T levels, contributing to a state of hypogonadism. Conclusion Our findings suggest that long-term dutasteride therapy produces worsening of ED, reduced T levels and increased glucose, HbA1c and alters lipid profiles, suggesting induced imbalance in metabolic function. We strongly recommend that physicians discuss with their patients these potential serious adverse effects of long-term dutasteride therapy prior to instituting this form of treatment.
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Jaruvongvanich V, Sanguankeo A, Riangwiwat T, Upala S. Testosterone, Sex Hormone-Binding Globulin and Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis. Ann Hepatol 2017. [PMID: 28425408 DOI: 10.5604/01.3001.0009.8593] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
| | - Anawin Sanguankeo
- Department of Internal Medicine, Bassett Medical Center and Columbia University College of Physicians and Surgeons, Cooperstown, NY, USA
| | - Tanawan Riangwiwat
- Department of Internal Medicine, University of Hawaii, Honolulu, HI, USA
| | - Sikarin Upala
- Department of Internal Medicine, Bassett Medical Center and Columbia University College of Physicians and Surgeons, Cooperstown, NY, USA
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Abnormal lipid/lipoprotein metabolism and high plasma testosterone levels in male but not female aromatase-knockout mice. Arch Biochem Biophys 2017; 622:47-58. [DOI: 10.1016/j.abb.2017.03.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 01/04/2023]
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Sarkar M, Wellons M, Cedars MI, VanWagner L, Gunderson EP, Ajmera V, Torchen L, Siscovick D, Carr JJ, Terry JG, Rinella M, Lewis CE, Terrault N. Testosterone Levels in Pre-Menopausal Women are Associated With Nonalcoholic Fatty Liver Disease in Midlife. Am J Gastroenterol 2017; 112:755-762. [PMID: 28291240 PMCID: PMC5664187 DOI: 10.1038/ajg.2017.44] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/01/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Young women with hyperandrogenism have high risk of metabolic co-morbidities, including increased risk of nonalcoholic fatty liver disease (NAFLD). Whether testosterone (the predominant androgen) is associated with NAFLD independent of metabolic co-factors is unclear. Additionally, whether testosterone confers increased risk of NAFLD in women without hyperandrogenism is unknown. METHODS Among women in the prospective population-based multicenter Coronary Artery Risk Development in Young Adults (CARDIA) study, we assessed whether free testosterone levels measured at Year 2 (1987-1988) were associated with prevalent NAFLD at Year 25 (2010-2011) (n=1052). NAFLD was defined using noncontrast abdominal CT scan with liver attenuation≤40 Hounsfield units after excluding other causes of hepatic fat. The association of free testosterone with prevalent NAFLD was assessed by logistic regression. RESULTS Increasing quintiles of free testosterone were associated with prevalent NAFLD at Year 25 (adjusted odds ratio (AOR) 1.25, 95% confidence interval (CI) 1.04-1.50, P=0.015), independent of insulin resistance, body mass index, waist circumference, and serum lipids. Importantly, the association persisted among n=955 women without androgen excess (AOR 1.27, 95% CI 1.05-1.53, P=0.016). Visceral adipose tissue (VAT) volume partially mediated the association of free testosterone with NAFLD (mediating effect 41.0%, 95% CI 22-119%). CONCLUSIONS Increasing free testosterone is associated with prevalent NAFLD in middle age, even in women without androgen excess. Visceral adiposity appears to play an important role in the relationship between testosterone and NAFLD in women. Testosterone may provide a potential novel target for NAFLD therapeutics, and future studies in pre-menopausal women should consider the importance of testosterone as a risk factor for NAFLD.
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Affiliation(s)
- Monika Sarkar
- Division of Gastroenterology and Hepatology, University of California, San Francisco, California, USA
| | - Melissa Wellons
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Marcelle I. Cedars
- Department of Obstetrics and Gynecology, University of California, San Francisco, California, USA
| | - Lisa VanWagner
- Division of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
| | | | - Veeral Ajmera
- Division of Gastroenterology and Hepatology, University of California, San Francisco, California, USA
| | - Laura Torchen
- Division of Pediatric Endocrinology, Northwestern University, Chicago, Illinois, USA
| | | | - J. Jeffrey Carr
- Department of Radiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - James G. Terry
- Department of Radiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Mary Rinella
- Division of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
| | - Cora E. Lewis
- Division of Preventive Medicine, University of Alabama Birmingham, Birmingham, Alabama, USA
| | - Norah Terrault
- Division of Gastroenterology and Hepatology, University of California, San Francisco, California, USA
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Chen X, Shen T, Li Q, Chen X, Li Y, Li D, Chen G, Ling W, Chen YM. Retinol Binding Protein-4 Levels and Non-alcoholic Fatty Liver Disease: A community-based cross-sectional study. Sci Rep 2017; 7:45100. [PMID: 28332619 PMCID: PMC5362806 DOI: 10.1038/srep45100] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/16/2017] [Indexed: 12/21/2022] Open
Abstract
Previous reports on the association between retinol binding protein 4 (RBP4) and nonalcoholic fatty liver disease (NAFLD) were controversial. This study aimed to investigate the association between the serum RBP4 levels and occurrence of NAFLD in Chinese population. In total, 2938 participants aged 40–75 years were involved in this community-based cross-sectional study. General information, lifestyle factors, serum levels of RBP4 and the presence of NAFLD were determined. Patients with NAFLD had significantly higher concentrations of RBP4 (37.9 ± 6.8 μg/ml) than did non-NAFLD controls (35.0 ± 6.7 μg/ml) (P < 0.001). The odds ratios (ORs) of NAFLD for the highest (vs. lowest) quartile of RBP4 were 1.884 (95% CI: 1.391, 2.551) for females (P < 0.001), and 2.107 (95% CI: 1.357, 3.273) for male participants (P < 0.01) after adjusting for related factors. The serum RBP4 levels were positively associated with the prevalence of NAFLD in middle-aged and elderly Chinese people, and Homeostatic model assessment-insulin resistance (HOMA-IR), trunk fat, the waist-to-hip ratio (WHR), systolic blood pressure (SBP), fasting insulin, high density lipoprotein cholesterol (HDL-C) and triglycerides (TG) might be implicated in the pathogenesis of RBP4 in NAFLD.
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Affiliation(s)
- Xuechen Chen
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Tianran Shen
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Qing Li
- Department of Epidemiology, School of Public Health, Guilin Medical University, Guilin, P. R. China
| | - Xu Chen
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Yanping Li
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Dan Li
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Gengdong Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Wenhua Ling
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
| | - Yu-Ming Chen
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, P. R. China
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Wang WB, She F, Xie LF, Yan WH, Ouyang JZ, Wang BA, Ma HY, Zang L, Mu YM. Evaluation of Basal Serum Adrenocorticotropic Hormone and Cortisol Levels and Their Relationship with Nonalcoholic Fatty Liver Disease in Male Patients with Idiopathic Hypogonadotropic Hypogonadism. Chin Med J (Engl) 2017; 129:1147-53. [PMID: 27174321 PMCID: PMC4878158 DOI: 10.4103/0366-6999.181967] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Prolonged gonadal hormone deficiency in patients with idiopathic hypogonadotropic hypogonadism (IHH) may produce adverse effects on the endocrine homeostasis and metabolism. This study aimed to compare basal serum adrenocorticotropic hormone (ACTH) and cortisol levels between male IHH patients and healthy controls. Moreover, this study compared the basal hypothalamic-pituitary-adrenal (HPA) axis in patients with and without nonalcoholic fatty liver disease (NAFLD), and also evaluated the relationship between basal HPA axis and NAFLD in male IHH patients. METHODS This was a retrospective case-control study involving 75 Chinese male IHH patients (mean age 21.4 ± 3.8 years, range 17-30 years) and 135 healthy controls after matching for gender and age. All subjects underwent physical examination and blood testing for serum testosterone, luteinizing hormone, follicle-stimulating hormone, ACTH, and cortisol and biochemical tests. RESULTS Higher basal serum ACTH levels (8.25 ± 3.78 pmol/L vs. 6.97 ± 2.81 pmol/L) and lower cortisol levels (366.70 ± 142.48 nmol/L vs. 452.82 ± 141.53 nmol/L) were observed in male IHH patients than healthy subjects (all p<0.05). IHH patients also showed higher metabolism parameters and higher prevalence rate of NAFLD (34.9% vs. 4.4%) than the controls (all P < 0.05). Basal serum ACTH (9.91 ± 4.98 pmol/L vs. 7.60 ± 2.96 pmol/L) and dehydroepiandrosterone sulfate (2123.7 ± 925.8 μg/L vs. 1417.1 ± 498.4 μg/L) levels were significantly higher in IHH patients with NAFLD than those without NAFLD (all P < 0.05). We also found that basal serum ACTH levels were positively correlated with NAFLD (r = 0.289,p<0.05) and triglyceride levels (r = 0.268, P< 0.05) in male IHH patients. Furthermore, NAFLD was independently associated with ACTH levels in male IHH patients by multiple linear regression analysis. CONCLUSIONS The male IHH patients showed higher basal serum ACTH levels and lower cortisol levels than matched healthy controls. NAFLD was an independent associated factor for ACTH levels in male IHH patients. These preliminary findings provided evidence of the relationship between basal serum ACTH and NAFLD in male IHH patients.
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Affiliation(s)
- Wen-Bo Wang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853; Department of Endocrinology, Tianjin Sanatorium of Beijing Military Region of PLA, Tianjin 300000, China
| | - Fei She
- Department of Medicine, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100048,, China
| | - Li-Fang Xie
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Wen-Hua Yan
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Jin-Zhi Ouyang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Bao-An Wang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Hang-Yun Ma
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Li Zang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Yi-Ming Mu
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
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Negative Impact of Testosterone Deficiency and 5α-Reductase Inhibitors Therapy on Metabolic and Sexual Function in Men. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1043:473-526. [DOI: 10.1007/978-3-319-70178-3_22] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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83
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Park D, Kwon H, Oh SW, Joh HK, Hwang SS, Park JH, Yun JM, Lee H, Chung GE, Ze S, Park JH, Bae Y, Lee A. Is Vitamin D an Independent Risk Factor of Nonalcoholic Fatty Liver Disease?: a Cross-Sectional Study of the Healthy Population. J Korean Med Sci 2017; 32:95-101. [PMID: 27914137 PMCID: PMC5143304 DOI: 10.3346/jkms.2017.32.1.95] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 10/08/2016] [Indexed: 01/12/2023] Open
Abstract
The association between vitamin D levels and nonalcoholic fatty liver disease (NAFLD) has been recognized. However, few studies showed independent associations between vitamin D deficiency and NAFLD after a sex-related adjustment for metabolic factors. We aimed to study whether vitamin D deficiency is an independent risk factor of NAFLD even after controlling for metabolic syndrome and visceral fat in both sexes. In this cross-sectional study, 7,514 Korean adults (5,278 men, 2,236 women) participated in a health check-up program. They underwent blood tests, abdominal computed tomography (CT) of the visceral fat area, and ultrasonography for NAFLD screening. Multiple logistic regression analysis was used to investigate the association of vitamin D deficiency with NAFLD according to the sex differences. Vitamin D deficiency is associated with NAFLD. The adjusted odds ratio (aOR) for NAFLD increased sequentially with decreasing vitamin D level, even after adjusting for metabolic syndrome and visceral fat. The subjects in the vitamin D sufficiency group (20-30 ng/mL) had an aOR for NAFLD of 1.18 (95% CI, 1.00-1.39), whereas the deficiency group (< 20 ng/mL) had an aOR of 1.29 (95% CI, 1.10-1.52). However, we have detected a significant sex-related interaction when analyzing the results. A significant relationship between vitamin D deficiency and NAFLD was found in men (aOR, 1.33; 95% CI, 1.11-1.60) but not in women.
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Affiliation(s)
- Danbee Park
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hyuktae Kwon
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.
| | - Seung Won Oh
- Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Hee Kyung Joh
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Family Medicine, Seoul National University Health Service Center, Seoul, Korea
| | - Seung Sik Hwang
- Department of Social and Preventive Medicine, Inha University School of Medicine, Incheon, Korea
| | - Jin Ho Park
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jae Moon Yun
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hyejin Lee
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Sangjoon Ze
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jae Hong Park
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Yeseul Bae
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Arang Lee
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
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84
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Alaa-Eldin EA, El-Shafei DA, Abouhashem NS. Individual and combined effect of chlorpyrifos and cypermethrin on reproductive system of adult male albino rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1532-1543. [PMID: 27785720 DOI: 10.1007/s11356-016-7912-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
Commercial mixtures of chlorpyrifos and cypermethrin pesticides are widely used to enhance the toxic effects of cypermethrin on target insects. So, the purpose of the current study was to evaluate the individual and combined toxic effects of chlorpyrifos (CPF) and cypermethrin (CYP) on reproductive system of adult male albino rats. Forty adult male albino rats were randomized into main four groups: group I (control group) included 16 rats, subdivided into negative and positive control; group II (eight rats) received chlorpyrifos 6.75 mg/kg b.w./orally∕daily); group III (eight rats) (received cypermethrin 12.5 mg/kg b.w./orally∕daily); and group IV (eight rats) (received chlorpyrifos and cypermethrin at the same previously mentioned doses). All treatments were given by oral gavage for 12 weeks. We found that single CPF and CYP exposures significantly have adverse effects on reproductive function of adult male albino rats manifested by reduced testicular weight, decreased sperm count, motility and viability, significantly increased percent of morphologically abnormal spermatozoa, and significant increments in sperm DNA fragmentation index (DFI) with respect to control group. Furthermore, serum follicle stimulating hormone, luteinizing hormone, and testosterone levels were decreased significantly compared to control group. This was accompanied with histopathological changes in the testis of rats such as necrosis, degeneration, decreasing number of spermatogenic cells in some seminiferous tubules, edema, congested blood vessels, and exudate in interstitial tissue of the testis. Notably, all these changes were exaggerated in rats treated concomitantly with chlorpyrifos and cypermethrin rendering the mixture more toxic than the additive effects of each compound and causing greater damage on the reproductive system of male albino rats than the individual pesticides.
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Affiliation(s)
- Eman Ahmad Alaa-Eldin
- Faculty of Medicine, Department of Forensic Medicine and Clinical Toxicology, Zagazig University, Zagazig, Egypt.
| | - Dalia Abdallah El-Shafei
- Faculty of Medicine, Department of Community, Environmental and Occupational Medicine, Zagazig University, Zagazig, Egypt
| | - Nehal S Abouhashem
- Faculty of Medicine, Department of Pathology, Zagazig University, Zagazig, Egypt
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85
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Norheim F, Hui ST, Kulahcioglu E, Mehrabian M, Cantor RM, Pan C, Parks BW, Lusis AJ. Genetic and hormonal control of hepatic steatosis in female and male mice. J Lipid Res 2016; 58:178-187. [PMID: 27811231 DOI: 10.1194/jlr.m071522] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/17/2016] [Indexed: 12/22/2022] Open
Abstract
The etiology of nonalcoholic fatty liver disease is complex and influenced by factors such as obesity, insulin resistance, hyperlipidemia, and sex. We now report a study on sex difference in hepatic steatosis in the context of genetic variation using a population of inbred strains of mice. While male mice generally exhibited higher concentration of hepatic TG levels on a high-fat high-sucrose diet, sex differences showed extensive interaction with genetic variation. Differences in percentage body fat were the best predictor of hepatic steatosis among the strains and explained about 30% of the variation in both sexes. The difference in percent gonadal fat and HDL explained 9.6% and 6.7% of the difference in hepatic TGs between the sexes, respectively. Genome-wide association mapping of hepatic TG revealed some striking differences in genetic control of hepatic steatosis between females and males. Gonadectomy increased the hepatic TG to body fat percentage ratio among male, but not female, mice. Our data suggest that the difference between the sexes in hepatic TG can be partly explained by differences in body fat distribution, plasma HDL, and genetic regulation. Future studies are required to understand the molecular interactions between sex, genetics, and the environment.
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Affiliation(s)
- Frode Norheim
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
| | - Simon T Hui
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
| | - Emre Kulahcioglu
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
| | - Margarete Mehrabian
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
| | - Rita M Cantor
- Department of Human Genetics, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA
| | - Calvin Pan
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
| | - Brian W Parks
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI
| | - Aldons J Lusis
- Department of Medicine, Division of Cardiology, University of California at Los Angeles, Los Angeles, CA
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86
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Zhang X, Wang Y, Liu P. Omic studies reveal the pathogenic lipid droplet proteins in non-alcoholic fatty liver disease. Protein Cell 2016; 8:4-13. [PMID: 27757845 PMCID: PMC5233612 DOI: 10.1007/s13238-016-0327-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 09/19/2016] [Indexed: 12/21/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an epidemic metabolic condition driven by an underlying lipid homeostasis disorder. The lipid droplet (LD), the main organelle involved in neutral lipid storage and hydrolysis, is a potential target for NAFLD therapeutic treatment. In this review, we summarize recent progress elucidating the connections between LD-associated proteins and NAFLD found by genome-wide association studies (GWAS), genomic and proteomic studies. Finally, we discuss a possible mechanism by which the protein 17β-hydroxysteroid dehydrogenase 13 (17β-HSD13) may promote the development of NAFLD.
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Affiliation(s)
- Xuelin Zhang
- School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, 100191, China.
| | - Yang Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Pingsheng Liu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
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87
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Barbonetti A, Caterina Vassallo MR, Cotugno M, Felzani G, Francavilla S, Francavilla F. Low testosterone and non-alcoholic fatty liver disease: Evidence for their independent association in men with chronic spinal cord injury. J Spinal Cord Med 2016; 39:443-9. [PMID: 25614040 PMCID: PMC5102293 DOI: 10.1179/2045772314y.0000000288] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE Non-alcoholic fatty liver disease (NAFLD) has been claimed as a liver phenotype of metabolic syndrome, which in turn is associated with male hypogonadism. We assessed whether an independent association between NAFLD and androgen deficiency could be revealed in men with chronic spinal cord injury (SCI), who exhibit a high prevalence of biochemical androgen deficiency and a combination of risk factors for metabolic syndrome. DESIGN Fifty-five consecutive men with chronic SCI admitted to a rehabilitation program underwent clinical/biochemical evaluations and liver ultrasonography. RESULTS NAFLD was diagnosed in 27 patients (49.1%). Men with NAFLD were older and exhibited significantly higher body mass index, Homeostatic model assessment of insulin resistance, triglycerides and gamma-glutamyl transpeptidase values, lower total and free testosterone levels and they were engaged in a significantly poorer weekly leisure time physical activity (LTPA). At the multiple logistic regression analysis, only total and free testosterone levels exhibited a significant independent association with NAFLD. The risk of having NAFLD increased indeed of 1% for each decrement of 1 ng/dL of total testosterone and of 3% for each decrement of 1 pg/mL of free testosterone, after adjustment for confounders. In men with total testosterone < 300 ng/dL (36.4%) the prevalence of NAFLD reached 85%: they had a risk of having NAFLD significantly higher (∼12-fold) than those with total testosterone ≥ 300 ng/dL, after adjustment for confounders. CONCLUSION The evidence of an independent association between NAFLD and low testosterone is strongly reinforced by its demonstration in men with chronic SCI, in spite of the many confounders peculiar to this population.
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Affiliation(s)
- Arcangelo Barbonetti
- Andrology Unit, Department of Life, Health and Environment Sciences, University of L'Aquila, L'Aquila, Italy
- Spinal Unit, San Raffaele Sulmona Institute, Sulmona, Italy
| | | | - Michele Cotugno
- Andrology Unit, Department of Life, Health and Environment Sciences, University of L'Aquila, L'Aquila, Italy
| | | | - Sandro Francavilla
- Andrology Unit, Department of Life, Health and Environment Sciences, University of L'Aquila, L'Aquila, Italy
| | - Felice Francavilla
- Andrology Unit, Department of Life, Health and Environment Sciences, University of L'Aquila, L'Aquila, Italy
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Williams KH, Sullivan DR, Nicholson GC, George J, Jenkins AJ, Januszewski AS, Gebski VJ, Manning P, Tan YM, Donoghoe MW, Ehnholm C, Young S, O'Brien R, Buizen L, Twigg SM, Keech AC. Opposite associations between alanine aminotransferase and γ-glutamyl transferase levels and all-cause mortality in type 2 diabetes: Analysis of the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study. Metabolism 2016; 65:783-793. [PMID: 27085785 DOI: 10.1016/j.metabol.2015.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 12/10/2015] [Accepted: 12/16/2015] [Indexed: 01/01/2023]
Abstract
AIMS Reported associations between liver enzymes and mortality may not hold true in type 2 diabetes, owing to a high prevalence of non-alcoholic fatty liver disease, which has been linked to cardiovascular disease and mortality in its own right. Our study aimed to determine whether alanine aminotransferase (ALT) or γ-glutamyl transferase (GGT) levels predict mortality in type 2 diabetes, and to examine possible mechanisms. METHODS Data from the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study were analyzed to examine the relationship between liver enzymes and all-cause and cause-specific mortality over 5years. RESULTS Over 5years, 679 (6.9%) individuals died. After adjustment, for every standard deviation increase in ALT (13.2U/L), the HR for death on study was 0.85 (95% CI 0.78-0.93), p<0.001. Conversely, GGT >70U/L, compared with GGT ≤70U/L, had HR 1.82 (1.48-2.24), p<0.001. For cause-specific mortality, lower ALT was associated with a higher risk of cardiovascular death only, whereas GGT >70U/L was associated with higher risks of death due to cardiovascular disease, cancer and non-cancer/non-cardiovascular causes. The relationship for ALT persisted after adjustment for indirect measures of frailty but was attenuated by elevated hsCRP. CONCLUSIONS As in the general population, ALT has a negative, and GGT a positive, correlation with mortality in type 2 diabetes when ALT is less than two times the upper limit of normal. The relationship for ALT appears specific for death due to cardiovascular disease. Links of low ALT with frailty, as a potential mechanism for relationships seen, were neither supported nor conclusively refuted by our analysis and other factors are also likely to be important in those with type 2 diabetes.
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Affiliation(s)
- Kathryn H Williams
- Sydney Medical School, University of Sydney, Sydney NSW, Australia; Royal Prince Alfred Hospital, Sydney NSW, Australia; National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | - David R Sullivan
- Royal Prince Alfred Hospital, Sydney NSW, Australia; National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | | | - Jacob George
- Sydney Medical School, University of Sydney, Sydney NSW, Australia; Storr Liver Unit, Westmead Millennium Institute, Westmead Hospital, Sydney NSW, Australia
| | - Alicia J Jenkins
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | - Andrzej S Januszewski
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | - Val J Gebski
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | - Patrick Manning
- Department of Medical and Surgical Sciences, Dunedin School of Medicine, Dunedin, New Zealand
| | - Yong Mong Tan
- Townsville Diabetes and Endocrine Unit, Townsville Hospital, Townsville QLD, Australia
| | - Mark W Donoghoe
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | | | - Simon Young
- Diabetes Clinic, Northshore Hospital, Auckland, New Zealand
| | | | - Luke Buizen
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia
| | - Stephen M Twigg
- Sydney Medical School, University of Sydney, Sydney NSW, Australia; Royal Prince Alfred Hospital, Sydney NSW, Australia
| | - Anthony C Keech
- Royal Prince Alfred Hospital, Sydney NSW, Australia; National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney NSW, Australia.
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89
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Panhypopituitarism due to Absence of the Pituitary Stalk: A Rare Aetiology of Liver Cirrhosis. Case Rep Endocrinol 2016; 2016:9071097. [PMID: 27213061 PMCID: PMC4860241 DOI: 10.1155/2016/9071097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 03/10/2016] [Indexed: 12/19/2022] Open
Abstract
Studies have established a relationship between hypothalamic-pituitary dysfunction and the onset of liver damage, which may occasionally progress to cirrhosis. Patients with hypopituitarism can develop a metabolic syndrome-like phenotype. Insulin resistance is the main pathophysiological axis of metabolic syndrome and is the causal factor in the development of nonalcoholic fatty liver disease (NAFLD). We present the case of a young patient with liver cirrhosis of unknown aetiology that was finally attributed to panhypopituitarism.
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90
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Mostafa HES, Abd El-Baset SA, Kattaia AAA, Zidan RA, Al Sadek MMA. Efficacy of naringenin against permethrin-induced testicular toxicity in rats. Int J Exp Pathol 2016; 97:37-49. [PMID: 26867500 DOI: 10.1111/iep.12168] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 12/15/2015] [Indexed: 02/06/2023] Open
Abstract
Permethrin (PM), a synthetic pyrethroid insecticide, has broad toxicity spectra. We aimed to investigate the effects of PM on the testes of adult albino rats, examine the recovery response and evaluate the efficacy of naringenin (NG) supplementation. Adult male albino rats were randomly assigned to five groups of six each: control, NG (50 mg/kg), PM (70 mg/kg), recovery (after subsequent withdrawal of PM) and NG-PM group. All treatments were given by oral gavage for 6 weeks and another 3 weeks for the recovery group. At the time of sacrifice, each testis was weighed. Biochemical analysis of epididymal sperm count and serum testosterone level was performed. Testes were processed for histological, ultrastructural and c-Kit immunohistochemical study. PM toxicity was evidenced by a highly significant decrease in testicular weight, epididymal sperm count and serum testosterone level compared to control. Furthermore, testicular structure abnormalities and reduced c-Kit immunoreactions were observed. Stoppage of PM in the recovery group partially reversed PM-induced changes. There was a mild decrease in testicular weight and biochemical parameters compared to control. The structure of seminiferous tubules was partially retained. The NG-PM group showed an overall improvement in testicular weight and biochemical alterations which were confirmed by light and electron microscopic examination. In conclusion, PM induced testicular toxicity, which was ameliorated by NG co-administration. However, stoppage of PM exposure was associated with partial recovery.
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Affiliation(s)
- Heba El-Sayed Mostafa
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Samia A Abd El-Baset
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Asmaa A A Kattaia
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Rania A Zidan
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mona M A Al Sadek
- Department of Community Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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91
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Yoon JH, Yang HJ, Kim JH, Doo SW, Yang WJ, Hwang J, Hong SS, Park S, Cho DY. The likelihood of having a serum PSA level of ≥2.5 ng/mL according to the degree of fatty liver disease in a screened population. Can Urol Assoc J 2016; 9:E868-72. [PMID: 26788237 DOI: 10.5489/cuaj.2395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We sought to investigate the impact of fatty liver disease (FLD) on prostate cancer (PCa) screening by estimating the odds of having a prostate-specific antigen (PSA) value over the cutoff used to prompt for the recommendation of prostate biopsy. METHODS Between 2007 and 2013, 18 533 native Korean men eligible to receive a serum PSA test, liver profiles, and abdominal ultrasonography were recruited. Logistic regression was used to estimate the odds of an abnormal PSA (≥2.5 ng/mL) in these men (age 45-75 years, PSA≤10 ng/mL) in relation to FLD. The FLD status was categorized as normal, mild, moderate, and severe grade by abdominal sonography. RESULTS A total of 16 563 men (89.4%) were included in the study after applying the inclusion criteria. Liver profiles were negatively correlated with the serum PSA level. After controlling for age and obesity, there was a statistically significant trend towards a lower likelihood of having a serum PSA level of ≥2.5 ng/mL with severe FLD, having a 34.7% lower likelihood (odds ratio 0.653, 95% confidence interval 0.477-0.88; p<0.01) compared to men in the normal group. CONCLUSIONS Severe FLD is an independent predictor of a lower likelihood of having abnormal PSA level. Further studies are needed to better define these results in clinical biopsy practice.
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Affiliation(s)
- Jong Hyun Yoon
- Department of Urology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Hee Jo Yang
- Department of Urology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Seung Whan Doo
- Department of Urology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Won Jae Yang
- Department of Urology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Jiyoung Hwang
- Department of Radiology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Seong Sook Hong
- Department of Radiology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Suyeon Park
- Department of Biostatistics, Soonchungyang University, College of Medicine, Seoul, Republic of Korea
| | - Dae Yeon Cho
- Department of Urology, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
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Hazlehurst JM, Oprescu AI, Nikolaou N, Di Guida R, Grinbergs AEK, Davies NP, Flintham RB, Armstrong MJ, Taylor AE, Hughes BA, Yu J, Hodson L, Dunn WB, Tomlinson JW. Dual-5α-Reductase Inhibition Promotes Hepatic Lipid Accumulation in Man. J Clin Endocrinol Metab 2016; 101:103-13. [PMID: 26574953 PMCID: PMC4701851 DOI: 10.1210/jc.2015-2928] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
CONTEXT 5α-Reductase 1 and 2 (SRD5A1, SRD5A2) inactivate cortisol to 5α-dihydrocortisol in addition to their role in the generation of DHT. Dutasteride (dual SRD5A1 and SRD5A2 inhibitor) and finasteride (selective SRD5A2 inhibitor) are commonly prescribed, but their potential metabolic effects have only recently been identified. OBJECTIVE Our objective was to provide a detailed assessment of the metabolic effects of SRD5A inhibition and in particular the impact on hepatic lipid metabolism. DESIGN We conducted a randomized study in 12 healthy male volunteers with detailed metabolic phenotyping performed before and after a 3-week treatment with finasteride (5 mg od) or dutasteride (0.5 mg od). Hepatic magnetic resonance spectroscopy (MRS) and two-step hyperinsulinemic euglycemic clamps incorporating stable isotopes with concomitant adipose tissue microdialysis were used to evaluate carbohydrate and lipid flux. Analysis of the serum metabolome was performed using ultra-HPLC-mass spectrometry. SETTING The study was performed in the Wellcome Trust Clinical Research Facility, Queen Elizabeth Hospital, Birmingham, United Kingdom. MAIN OUTCOME MEASURE Incorporation of hepatic lipid was measured with MRS. RESULTS Dutasteride, not finasteride, increased hepatic insulin resistance. Intrahepatic lipid increased on MRS after dutasteride treatment and was associated with increased rates of de novo lipogenesis. Adipose tissue lipid mobilization was decreased by dutasteride. Analysis of the serum metabolome demonstrated that in the fasted state, dutasteride had a significant effect on lipid metabolism. CONCLUSIONS Dual-SRD5A inhibition with dutasteride is associated with increased intrahepatic lipid accumulation.
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Affiliation(s)
- Jonathan M Hazlehurst
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Andrei I Oprescu
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Nikolaos Nikolaou
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Riccardo Di Guida
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Annabel E K Grinbergs
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Nigel P Davies
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Robert B Flintham
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Matthew J Armstrong
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Angela E Taylor
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Beverly A Hughes
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Jinglei Yu
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Warwick B Dunn
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Jeremy W Tomlinson
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (J.M.H., N.N., L.H., J.W.T.), National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Oxford OX3 7LE, United Kingdom; Centre for Diabetes, Endocrinology, and Metabolism (A.I.O., A.E.T., B.A.H.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, School of Biosciences and Regional Phenome Centre (R.D.G., W.B.D.), Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), and School of Sports and Exercise Sciences (J.Y.), University of Birmingham, Birmingham B15 2TH, United Kingdom; National Institute for Health Research/Wellcome Trust Clinical Research Facility (A.E.K.G.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom; and Department of Medical Physics (N.P.D., R.B.F.), Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
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93
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Bendre SV, Murray PJ, Basaria S. Clomiphene Citrate Effectively Increases Testosterone in Obese, Young, Hypogonadal Men. ACTA ACUST UNITED AC 2015; 4. [PMID: 26844009 DOI: 10.4172/2161-038x.1000155] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Obesity has been associated with low testosterone (T) in adult males and in pubertal boys. Therapy for hypogonadism with exogenous T may lead to testicular atrophy and later infertility. Only a few studies have demonstrated that the Selective Estrogen Receptor Modulator (SERM) clomiphene citrate (CC), an estrogen receptor antagonist, increases T in obese hypogonadal men while preventing testicular atrophy. No studies to date using CC have been done in younger obese post-pubertal hypogonadal males. OBJECTIVE To determine whether CC therapy is effective in increasing serum T levels in hypogonadal post-pubertal obese males 18-21 years. MATERIALS AND METHODS A retrospective chart analysis of records in obese men aged 18-21 years was done. Patients with early morning T level <350 ng/dl were given 25 mg CC on alternate days. Out of 18 patients found to have low T, 11 were analyzed. Baseline serum T, LH, FSH, weight and BMI were compared at baseline and after 3 months of CC treatment. RESULTS Baseline T level was 233 ± 66 ng/dl and increased to 581 ± 161 ng/dl (p<0.0001) after 3 months of CC treatment. Baseline LH levels increased from 3.3 ± 1.6 mIU/mL to 5.7 ± 1.7 mIU/mL (p=0.027). Similarly, baseline FSH levels increased from 2.8 ± 1.5 mIU/mL to 6.2 ± 3 mIU/mL after CC treatment (p=0.026). There was no correlation between baseline or post treatment weight or BMI and the T level, LH, or FSH level. CONCLUSION This is the first study reporting on CC therapy in obese, hypogonadal post-pubertal men 18-21 years. The SERM CC increased T in obese post-pubertal hypogonadal men, similar to efficacy of CC in adult hypogonadal men over the age 21 years. Larger randomized controlled studies to study the safety and potential use of CC to improve T in young obese HG men are needed.
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Affiliation(s)
- Sachin V Bendre
- Department of Pediatrics, West Virginia University, Charleston Division, USA
| | - Pamela J Murray
- Department of Pediatrics, West Virginia University, Charleston Division, USA
| | - Shehzad Basaria
- Department of Medicine, Aging and Metabolism, Boston, MA, USA
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94
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is a condition where there is excess accumulation of triglycerides in the liver in the absence of excess alcohol consumption. It ranges from simple steatosis to non-alcoholic steatohepatitis (NASH), which can progress to fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). NAFLD, one of the most common causes of chronic liver disease in Western populations, is the hepatic component of the metabolic syndrome (MetS) and is associated with increased visceral adipose tissue (VAT), insulin resistance, and dyslipidemia. Studies have also shown that testosterone deficiency is associated with increased VAT and insulin resistance in males while hyperandrogenemia has been associated with increased risk of insulin resistance and VAT in females. Thus, the aims of this review are to discuss the available experimental and epidemiological data evaluating the association between testosterone and NAFLD, to discuss the potential clinical relevance of these data, and to identify gaps in the literature.
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95
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Nonalcoholic fatty liver disease and alteration in semen quality and reproductive hormones. Eur J Gastroenterol Hepatol 2015; 27:1069-73. [PMID: 26062079 DOI: 10.1097/meg.0000000000000408] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the world. Some reports have shown that NAFLD may cause multisystem damage, but its influence on male reproductive function has rarely been studied. AIM To evaluate the influence of NAFLD on sperm quality and reproductive hormones in Chinese men. MATERIALS AND METHODS A total of 102 NAFLD men and 94 healthy men without fatty liver (control) were enrolled in this study. All participants underwent a physical examination, and were subjected to lifestyle questionnaires and abdominal ultrasound examination. The semen quality (volume, concentration, motility, and morphology) and serum hormonal levels (testosterone, estradiol, follicle-stimulating hormone, inhibin B, sex hormone-binding globulin, and luteinizing hormone) were examined and compared between the two groups. RESULTS The levels of serum testosterone and sex hormone-binding globulin were significantly lower in the NAFLD patients compared with the control group. Sperm concentration (P=0.04), sperm count (P=0.01), and total motility (P=0.03) in the NAFLD patients were significantly decreased compared with the control group. However, no significant differences were observed in semen volume and morphology. Multivariate analysis showed that sperm concentration, sperm count, and motility were significantly associated with NAFLD and abstinence (P<0.05 or P<0.001). CONCLUSION These results suggest that NAFLD could significantly affect sperm quality and reproductive hormones.
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96
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Association Between Endogenous Sex Hormones and Liver Fat in a Multiethnic Study of Atherosclerosis. Clin Gastroenterol Hepatol 2015; 13:1686-93.e2. [PMID: 25592661 PMCID: PMC4500744 DOI: 10.1016/j.cgh.2014.12.033] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/05/2014] [Accepted: 12/24/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Levels of circulating of sex hormones are associated with glucose metabolism and adiposity, but little is known about their association with ectopic fat. We aimed to characterize the association between circulating sex hormones and liver fat. METHODS We conducted a cross-sectional analysis by using data from the Multiethnic Study of Atherosclerosis to assess the association of the circulating levels of bioavailable testosterone, estradiol, dehydroepiandrosterone, and sex hormone binding globulin (SHBG) with fatty liver. Fatty liver was defined as a reduction of ≤40 Hounsfield units, measured by computed tomography, in 2835 postmenopausal women and 2899 men (45-84 years old; white, black, Hispanic, or Chinese) at 6 centers in the United States. RESULTS Women in the highest tertile of bioavailable testosterone were significantly more likely to have fatty liver than women in the lowest tertile (odds ratio, 1.77; 95% confidence interval, 1.07-2.92). We found an even greater difference for level of estradiol (odds ratio, 2.49; 95% confidence interval, 1.41-4.39) after adjusting for age, race/ethnicity, waist-to-hip ratio, hypertension, total and high-density lipoprotein cholesterol, smoking, insulin sensitivity, and hormone replacement therapy use. Men in the highest tertile of estradiol level were significantly more likely to have fatty liver than men in the lowest tertile (odds ratio, 2.10; 95% confidence level, 1.29-3.40). Men in the highest tertile of SHBG were less likely to have fatty liver than those in the lowest tertile (odds ratio, 0.46; 95% confidence interval, 0.27-0.77). Other associations between hormone levels and fatty liver were not statistically significant. CONCLUSIONS On the basis of a cross-sectional study, postmenopausal women with high levels of bioavailable testosterone are at greater risk for fatty liver. In men, higher levels of SHBG are associated with reduced risk for fatty liver. Higher levels of estradiol are associated with fatty liver in both sexes. This pattern is consistent with the sex-specific associations of sex hormones with other cardiometabolic risk factors.
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97
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Gawrieh S. Sex Hormones, Sex Hormone-Binding Globulin, and Liver Fat: Which Came First, the Chicken or the Egg? Clin Gastroenterol Hepatol 2015; 13:1694-6. [PMID: 25956841 DOI: 10.1016/j.cgh.2015.04.182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 04/29/2015] [Accepted: 04/29/2015] [Indexed: 01/06/2023]
Affiliation(s)
- Samer Gawrieh
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana
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98
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Nasiri M, Nikolaou N, Parajes S, Krone NP, Valsamakis G, Mastorakos G, Hughes B, Taylor A, Bujalska IJ, Gathercole LL, Tomlinson JW. 5α-Reductase Type 2 Regulates Glucocorticoid Action and Metabolic Phenotype in Human Hepatocytes. Endocrinology 2015; 156:2863-71. [PMID: 25974403 PMCID: PMC4511138 DOI: 10.1210/en.2015-1149] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Glucocorticoids and androgens have both been implicated in the pathogenesis of nonalcoholic fatty liver disease (NAFLD); androgen deficiency in males, androgen excess in females, and glucocorticoid excess in both sexes are associated with NAFLD. Glucocorticoid and androgen action are regulated at a prereceptor level by the enzyme 5α-reductase type 2 (SRD5A2), which inactivates glucocorticoids to their dihydrometabolites and converts T to DHT. We have therefore explored the role of androgens and glucocorticoids and their metabolism by SRD5A2 upon lipid homeostasis in human hepatocytes. In both primary human hepatocytes and human hepatoma cell lines, glucocorticoids decreased de novo lipogenesis in a dose-dependent manner. Whereas androgen treatment (T and DHT) increased lipogenesis in cell lines and in primary cultures of human hepatocytes from female donors, it was without effect in primary hepatocyte cultures from men. SRD5A2 overexpression reduced the effects of cortisol to suppress lipogenesis and this effect was lost following transfection with an inactive mutant construct. Conversely, pharmacological inhibition using the 5α-reductase inhibitors finasteride and dutasteride augmented cortisol action. We have demonstrated that manipulation of SRD5A2 activity can regulate lipogenesis in human hepatocytes in vitro. This may have significant clinical implications for those patients prescribed 5α-reductase inhibitors, in particular augmenting the actions of glucocorticoids to modulate hepatic lipid flux.
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Affiliation(s)
- Maryam Nasiri
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Nikolaos Nikolaou
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Silvia Parajes
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Nils P Krone
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - George Valsamakis
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - George Mastorakos
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Beverly Hughes
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Angela Taylor
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Iwona J Bujalska
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Laura L Gathercole
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
| | - Jeremy W Tomlinson
- Centre for Endocrinology, Diabetes and Metabolism (M.N., S.P., N.P.K., B.H., A.T., I.J.B.), Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Oxford Centre for Diabetes, Endocrinology & Metabolism (N.N., L.L.G., J.W.T.), NIHR Oxford Biomedical Research Centre, University of Oxford, Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Endocrine Unit, Second Department of Obstetrics and Gynecology and Pathology Department (G.V., G.M.), Aretaieion University Hospital, Athens Medical School, Athens, 11528, Greece
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Seo NK, Koo HS, Haam JH, Kim HY, Kim MJ, Park KC, Park KS, Kim YS. Prediction of prevalent but not incident non-alcoholic fatty liver disease by levels of serum testosterone. J Gastroenterol Hepatol 2015; 30:1211-6. [PMID: 25708291 DOI: 10.1111/jgh.12935] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/19/2015] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND AIMS The association between testosterone level and development of non-alcoholic fatty liver disease (NAFLD) is not well known. We examined the relationship of total testosterone level with development and regression of NAFLD. METHODS Among the men who had undergone repeated liver ultrasonography in 2 years or more at a health promotion center, subjects with available serum testosterone level at baseline were included in the study. Alcohol consumers (> 20 g/day) were excluded from the study. RESULTS Among the 1944 men, 44.3% of subjects were diagnosed with NAFLD. Higher level of testosterone significantly lowered the prevalence of fatty liver (odds ratios per SD increase, 0.686 and 0.795 at baseline and follow-up, respectively). During the median 4.2 years follow-up, 22.4% of subjects in the normal group developed fatty liver, and 21.0% of subjects in the NAFLD group recovered at the follow-up. In longitudinal analyses, higher level of testosterone was significantly associated with the development or regression of fatty liver, before adjustment for obesity and metabolic parameters. However, in the full-adjusted model, testosterone level did not influence the development or regression of fatty liver. CONCLUSIONS Although testosterone level was significantly low in the subjects with NAFLD in cross-sectional analyses, baseline testosterone level did not independently influence the development or regression of fatty liver at the median 4.2 years follow-up. Obesity and metabolic parameters may play key roles in the link between testosterone level and NAFLD.
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Affiliation(s)
- Nam Kyoung Seo
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Hyung Suk Koo
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Ji-Hee Haam
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Hyung Yuk Kim
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Moon Jong Kim
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Kyung-Chae Park
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Kye-Seon Park
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Young-Sang Kim
- Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
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Abstract
Testosterone is a key hormone in the pathology of metabolic diseases such as obesity. Low testosterone levels are associated with increased fat mass (particularly central adiposity) and reduced lean mass in males. These morphological features are linked to metabolic dysfunction, and testosterone deficiency is associated with energy imbalance, impaired glucose control, reduced insulin sensitivity and dyslipidaemia. A bidirectional relationship between testosterone and obesity underpins this association indicated by the hypogonadal-obesity cycle and evidence weight loss can lead to increased testosterone levels. Androgenic effects on enzymatic pathways of fatty acid metabolism, glucose control and energy utilization are apparent and often tissue specific with differential effects noted in different regional fat depots, muscle and liver to potentially explain the mechanisms of testosterone action. Testosterone replacement therapy demonstrates beneficial effects on measures of obesity that are partially explained by both direct metabolic actions on adipose and muscle and also potentially by increasing motivation, vigour and energy allowing obese individuals to engage in more active lifestyles. The degree of these beneficial effects may be dependent on the treatment modality with longer term administration often achieving greater improvements. Testosterone replacement may therefore potentially be an effective adjunctive treatment for weight management in obese men with concomitant hypogonadism.
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Affiliation(s)
- D M Kelly
- Department of Human Metabolism, Medical School, The University of Sheffield, Sheffield, UK
| | - T H Jones
- Department of Human Metabolism, Medical School, The University of Sheffield, Sheffield, UK.,Centre for Diabetes and Endocrinology, Barnsley Hospital NHS Foundation Trust, Barnsley, UK
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