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Čulić V. Anabolic-androgenic steroids and cardiac function in weightlifting men. Eur J Prev Cardiol 2024; 31:e96. [PMID: 38715524 DOI: 10.1093/eurjpc/zwae168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/21/2024]
Affiliation(s)
- Viktor Čulić
- Department of Cardiology and Angiology, University Hospital Centre Split, Šoltanska 1, Split, Croatia
- Department of Clinical Propedeutics, University of Split School of Medicine, Šoltanska 2A, Split, Croatia
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Turić I, Velat I, Bušić Ž, Čulić V. Circulating thyroid hormones and clinical parameters of heart failure in men. Sci Rep 2023; 13:20319. [PMID: 37985786 PMCID: PMC10662258 DOI: 10.1038/s41598-023-47391-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023] Open
Abstract
Heart failure (HF) is a multiple hormonal deficiency syndrome which includes alterations in the serum concentration of thyroid hormones (TH). This cross-sectional study enrolled 215 male patients hospitalised for acute HF. Data on cardiovascular risk factors, chronic medications, cardiac function assessed by echocardiography, and clinical parameters of HF were prospectively collected. The independent predictive association of TH with all investigated parameters of the HF severity were assessed. The patient's mean age was 74.4 years, 57.2% had arterial hypertension, 54.0% were consuming alcohol, and 42.3% were diabetics. Multivariate analysis revealed that total triiodothyronine (TT3) was an independent predictor of greater left ventricular ejection fraction (LVEF; β = 0.223, p = 0.008), less progressed left ventricular diastolic dysfunction (LVDD; β = - 0.271, p = 0.001) and lower N-terminal pro-brain natriuretic peptide (NT-proBNP; β = - 0.365, p < 0.001). None of the TH other than TT3 was associated with LVDD or NT-proBNP, whereas free triiodothyronine (β = - 0.197, p = 0.004), free thyroxine (β = - 0.223, p = 0.001) and total thyroxine (β = - 0.140, p = 0.041) were inversely associated with LVEF. The present study suggests that, among TH, serum TT3 level is most closely associated with echocardiographic, laboratory and clinical parameters of the severity of HF in men.
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Affiliation(s)
- Iva Turić
- Department of Cardiology and Angiology, University Hospital Centre Split, 21000, Split, Croatia
| | - Ivan Velat
- Department of Urology, University Hospital Centre Split, Split, Croatia
| | - Željko Bušić
- Department of Neurosurgery, University Hospital Centre Split, Split, Croatia
| | - Viktor Čulić
- Department of Cardiology and Angiology, University Hospital Centre Split, 21000, Split, Croatia.
- University of Split School of Medicine, Split, Croatia.
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The relationship between serum sex hormone and cardiac echocardiographic findings in healthy men. Sci Rep 2022; 12:12787. [PMID: 35896587 PMCID: PMC9329341 DOI: 10.1038/s41598-022-17101-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 05/09/2022] [Indexed: 11/09/2022] Open
Abstract
Serum sex hormones are known to be associated with cardiovascular disease (CVD), but effects in healthy men on cardiac function have not been well quantified. The authors sought to evaluate an association of sex hormones with cardiac structure and function. Study participants were 857 Korean men without significant cardiovascular diseases participating in the Healthy Twin Study. We estimated the associations of total testosterone (TT) and sex hormone-binding globulin (SHBG) with cardiac structure and function measured by echocardiography using a linear mixed regression model with consideration of random and fixed effects of covariates. The ratio of peak early diastolic velocity of mitral inflow over peak early diastolic mitral annular velocity (E/e') and left atrial volume index (LAVI), functional parameters reflecting left ventricle (LV) filling pressure, were inversely associated with TT even after further cross-adjustment for SHBG level. There was a positive association between LAVI and SHBG, regardless of TT adjustment. These findings suggest that serum testosterone level is positively associated with LV diastolic function independent of SHBG level.
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Ayaz O, Banga S, Heinze-Milne S, Rose RA, Pyle WG, Howlett SE. Long-term testosterone deficiency modifies myofilament and calcium-handling proteins and promotes diastolic dysfunction in the aging mouse heart. Am J Physiol Heart Circ Physiol 2019; 316:H768-H780. [PMID: 30657724 DOI: 10.1152/ajpheart.00471.2018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The impact of long-term gonadectomy (GDX) on cardiac contractile function was explored in the setting of aging. Male mice were subjected to bilateral GDX or sham operation (4 wk) and investigated at 16-18 mo of age. Ventricular myocytes were field stimulated (2 Hz, 37°C). Peak Ca2+ transients (fura 2) and contractions were similar in GDX and sham-operated mice, although Ca2+ transients (50% decay time: 45.2 ± 2.3 vs. 55.6 ± 3.1 ms, P < 0.05) and contractions (time constant of relaxation: 39.1 ± 3.2 vs. 69.5 ± 9.3 ms, P < 0.05) were prolonged in GDX mice. Action potential duration was increased in myocytes from GDX mice, but this did not account for prolonged responses, as Ca2+ transient decay was slow even when cells from GDX mice were voltage clamped with simulated "sham" action potentials. Western blots of proteins involved in Ca2+ sequestration and efflux showed that Na+/Ca2+ exchanger and sarco(endo)plasmic reticulum Ca2+-ATPase type 2 protein levels were unaffected, whereas phospholamban was dramatically higher in ventricles from aging GDX mice (0.24 ± 0.02 vs. 0.86 ± 0.13, P < 0.05). Myofilament Ca2+ sensitivity at physiological Ca2+ was similar, but phosphorylation of essential myosin light chain 1 was reduced by ≈50% in ventricles from aging GDX mice. M-mode echocardiography showed no change in systolic function (e.g., ejection fraction). Critically, pulse-wave Doppler echocardiography showed that GDX slowed isovolumic relaxation time (12.9 ± 0.9 vs. 16.9 ± 1.0 ms, P < 0.05), indicative of diastolic dysfunction. Thus, dysregulation of intracellular Ca2+ and myofilament dysfunction contribute to deficits in contraction in hearts from testosterone-deficient aging mice. This suggests that low testosterone helps promote diastolic dysfunction in the aging heart. NEW & NOTEWORTHY The influence of long-term gonadectomy on contractile function was examined in aging male hearts. Gonadectomy slowed the decay of Ca2+ transients and contractions in ventricular myocytes and slowed isovolumic relaxation time, demonstrating diastolic dysfunction. Underlying mechanisms included Ca2+ dysregulation, elevated phospholamban protein levels, and hypophosphorylation of a myofilament protein, essential myosin light chain. Testosterone deficiency led to intracellular Ca2+ dysregulation and myofilament dysfunction, which may facilitate diastolic dysfunction in the setting of aging.
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Affiliation(s)
- Omar Ayaz
- Department of Pharmacology, Dalhousie University , Halifax, Nova Scotia , Canada
| | - Shubham Banga
- Department of Pharmacology, Dalhousie University , Halifax, Nova Scotia , Canada
| | - Stefan Heinze-Milne
- Department of Pharmacology, Dalhousie University , Halifax, Nova Scotia , Canada
| | - Robert A Rose
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary , Calgary, Alberta , Canada
| | - W Glen Pyle
- Department of Biomedical Sciences, University of Guelph , Guelph, Ontario , Canada
| | - Susan E Howlett
- Department of Pharmacology, Dalhousie University , Halifax, Nova Scotia , Canada.,Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary , Calgary, Alberta , Canada
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Circulating sex hormones, alcohol consumption and echocardiographic parameters of cardiac function in men with heart failure. Int J Cardiol 2016; 224:245-251. [PMID: 27661414 DOI: 10.1016/j.ijcard.2016.09.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 08/24/2016] [Accepted: 09/15/2016] [Indexed: 01/19/2023]
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Pongkan W, Pintana H, Jaiwongkam T, Kredphoo S, Sivasinprasasn S, Chattipakorn SC, Chattipakorn N. Vildagliptin reduces cardiac ischemic-reperfusion injury in obese orchiectomized rats. J Endocrinol 2016; 231:81-95. [PMID: 27543302 DOI: 10.1530/joe-16-0232] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 08/19/2016] [Indexed: 12/13/2022]
Abstract
Obesity and testosterone deprivation are associated with coronary artery disease. Testosterone and vildagliptin (dipeptidyl peptidase-4 inhibitors) exert cardioprotection during ischemic-reperfusion (I/R) injury. However, the effect of these drugs on I/R heart in a testosterone-deprived, obese, insulin-resistant model is unclear. This study investigated the effects of testosterone and vildagliptin on cardiac function, arrhythmias and the infarct size in I/R heart of testosterone-deprived rats with obese insulin resistance. Orchiectomized (O) or sham operated (S) male Wistar rats were divided into 2 groups to receive normal diet (ND) or high-fat diet (HFD) for 12 weeks. Orchiectomized rats in each diet were divided to receive testosterone (2 mg/kg), vildagliptin (3 mg/kg) or the vehicle daily for 4 weeks. Then, I/R was performed by a 30-min left anterior descending coronary artery ligation, followed by a 120-min reperfusion. LV function, arrhythmia scores, infarct size and cardiac mitochondrial function were determined. HFD groups developed insulin resistance at week 12. At week 16, cardiac function was impaired in NDO, HFO and HFS rats, but was restored in all testosterone- and vildagliptin-treated rats. During I/R injury, arrhythmia scores, infarct size and cardiac mitochondrial dysfunction were prominently increased in NDO, HFO and HFS rats, compared with those in NDS rats. Treatment with either testosterone or vildagliptin similarly attenuated these impairments during I/R injury. These finding suggest that both testosterone replacement and vildagliptin share similar efficacy for cardioprotection during I/R injury by decreasing the infarct size and attenuating cardiac mitochondrial dysfunction caused by I/R injury in testosterone-deprived rats with obese insulin resistance.
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Affiliation(s)
- Wanpitak Pongkan
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai University, Chiang Mai, Thailand
| | - Hiranya Pintana
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Thidarat Jaiwongkam
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai University, Chiang Mai, Thailand
| | - Sasiwan Kredphoo
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai University, Chiang Mai, Thailand
| | - Sivaporn Sivasinprasasn
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Department of Oral Biology and Diagnostic ScienceFaculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training CenterFaculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Cardiac Electrophysiology UnitDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai University, Chiang Mai, Thailand
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Wang RT, Liu HT, Zhao YL, Li N, Liu T, Kong X, Yu KJ. Bone mineral density is associated with left ventricular diastolic function in men with type 2 diabetes. DIABETES & METABOLISM 2016; 42:256-62. [PMID: 26971836 DOI: 10.1016/j.diabet.2016.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 02/04/2016] [Accepted: 02/15/2016] [Indexed: 01/03/2023]
Abstract
AIMS Type 2 diabetes (T2DM) is associated with chronic heart failure and cardiomyopathy. Furthermore, low bone mineral density (BMD) predicts incident heart failure. Abnormal diastolic function reflects early changes in cardiac function and plays a key role in the development of heart failure. The purpose of this study was to investigate the association between BMD with left ventricular (LV) diastolic function in men with T2DM. METHODS In all, 344 men with T2DM and 331 age-matched control subjects were enrolled. BMD measurements were performed. LV diastolic function and structure were assessed by echocardiographic evaluation. RESULTS BMD was lower in men with T2DM than in controls. There were significant differences in the level of parameters reflecting cardiac structure and LV diastolic function between two groups. Moreover, LV diastolic function and structure parameters also showed significant differences as BMD reduced in T2DM group. BMD at femoral neck was correlated with LV diastolic function parameters in T2DM after adjusting for confounding factors. Multivariable logistic analysis revealed that osteopenia and osteoporosis were associated with diastolic dysfunction compared to the control in men with T2DM. However, no association between BMD and LV diastolic function was found in subjects without T2DM. CONCLUSION Osteoporosis may be an independent factor for LV diastolic dysfunction in men with T2DM. Our data suggested that early detection of abnormal BMD should warrant for early search of undetected LV diastolic dysfunction in diabetic men.
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Affiliation(s)
- R-T Wang
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China
| | - H-T Liu
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China
| | - Y-L Zhao
- Harbin Medical University (Da Qing), Harbin, Heilongjiang, China
| | - N Li
- Department of Cardiology, Harbin Medical University, the Second Affiliated Hospital, Harbin, Heilongjiang, China
| | - T Liu
- Division of Hypothalamic Research, UT Southwestern Medical Center, Department of Internal Medicine, 75390 Dallas, TX, USA
| | - X Kong
- Division of Endocrinology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215 Boston, MA, USA
| | - K-J Yu
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China.
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