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Jakovljevic B, Plecevic S, Petkovic A, Turnic TN, Milosavljevic I, Radoman K, Srejovic I. Is 3 Weeks of Exercise Enough to Change Blood Pressure and Cardiac Redox State in Hypertensive Rats? SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2019. [DOI: 10.1515/sjecr-2017-0049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
The investigation was aimed to evaluate the effects of 3-weeks swimming exercise on blood pressure and redox status in high-salt-induced hypertensive rats. Male Wistar albino rats (n=40, 6 weeks old) were divided into 4 groups: 1. hypertensive rats that swam for 3 weeks; 2. sedentary hypertensive control rats; 3. normotensive rats that swam for 3 weeks; 4. sedentary normotensive control rats. Hypertensive animals were on high concentrated sodium (8% NaCl) solution for 4 weeks (period of induction of hypertension). After sacrificing, hearts were isolated and perfused according to Langendorff technique at gradually increased coronary per-fusion pressure from 40–120 cmH2O. The oxidative stress markers were determined in coronary venous effluent: the index of lipid peroxidation (measured as TBARS), nitrites (NO2
−), superoxide anion radical (O2
−) and hydrogen peroxide (H2O2). Swimming did not lead to significant changes in levels of TBARS, NO2
−, O2
− in any of compared groups while levels of H2O2 were significantly higher in swimming hyper-tensive group comparing to swimming normotensive group at coronary perfusion pressure of 80–120 cmH2O. Our results indicate that the short-term swimming start to reduce blood pressure. In addition it seems that this type of swimming duration does not promote cardiac oxidative stress damages.
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Affiliation(s)
| | - Sasa Plecevic
- Sports Medicine Association of Serbia , Belgrade , Serbia
| | - Anica Petkovic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | - Tamara Nikolic Turnic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | - Isidora Milosavljevic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | | | - Ivan Srejovic
- University of Kragujevac , Faculty of Medical Sciences, Department of Physiology , Kragujevac , Serbia
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2
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Raimundo Fernades ÉM, de Moura SS, Silva RO, Totou NL, Baleeiro RDS, de Oliveira EC, Coelho DB, Cardoso LM, Becker LK. Acute volume expansion decreased baroreflex response after swimming but not after running exercise training in hypertensive rats. Clin Exp Hypertens 2019; 42:460-468. [DOI: 10.1080/10641963.2019.1693588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Samara Silva de Moura
- Postgraduate Program in Health and Nutrition/PPGSSN, Federal University of Ouro Preto, Ouro Preto, Brazil
| | | | - Nádia Lúcia Totou
- Research Center in Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | | | - Emerson Cruz de Oliveira
- Postgraduate Program in Health and Nutrition/PPGSSN, Federal University of Ouro Preto, Ouro Preto, Brazil
- Physical Education School, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Daniel Barbosa Coelho
- Postgraduate Program in Health and Nutrition/PPGSSN, Federal University of Ouro Preto, Ouro Preto, Brazil
- Physical Education School, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Leonardo Máximo Cardoso
- Research Center in Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Lenice Kappes Becker
- Postgraduate Program in Health and Nutrition/PPGSSN, Federal University of Ouro Preto, Ouro Preto, Brazil
- Physical Education School, Federal University of Ouro Preto, Ouro Preto, Brazil
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3
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Totou NL, Moura SS, Coelho DB, Oliveira EC, Becker LK, Lima WG. Swimming exercise demonstrates advantages over running exercise in reducing proteinuria and glomerulosclerosis in spontaneously hypertensive rats. Physiol Int 2018; 105:76-85. [PMID: 29602293 DOI: 10.1556/2060.105.2018.1.7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Experimental studies in animal models have described the benefits of physical exercise (PE) to kidney diseases associated with hypertension. Land- and water-based exercises induce different responses in renal function. Our aim was to evaluate the renal alterations induced by different environments of PE in spontaneously hypertensive rats (SHRs). The SHRs were divided into sedentary (S), swimming exercise (SE), and running exercise (RE) groups, and were trained for 8 weeks under similar intensities (60 min/day). Arterial pressure (AP) and heart rate (HR) were recorded. The renal function was evaluated through urinary volume at each week of training; sodium and potassium excretions, plasma and urinary osmolarities, glomerular filtration rate (GFR), levels of proteinuria, and renal damage were determined. SE and RE rats presented reduced mean AP, systolic blood pressure, and HR in comparison with S group. SE and RE rats showed higher urine osmolarity compared with S. SE rats showed higher free water clearance (P < 0.01), lower urinary density (P < 0.0001), and increased weekly urine volume (P < 0.05) in comparison with RE and S groups. GFR was increased in both SE and RE rats. The proteinuria of SE (7.0 ± 0.8 mg/24 h) rats was decreased at the 8th week of the PE in comparison with RE (9.6 ± 0.8 mg/24 h) and S (9.8 ± 0.5 mg/24 h) groups. The glomerulosclerosis was reduced in SE rats (P < 0.02). SE produced different response in renal function in comparison with RE, in which only swimming-trained rats had better profile for proteinuria and glomerulosclerosis.
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Affiliation(s)
- N L Totou
- 1 Department of Biological Sciences (DECBI), Federal University of Ouro Preto , Minas Gerais, Brazil
| | - S S Moura
- 2 Sports Center (CEDUFOP), Federal University of Ouro Preto , Minas Gerais, Brazil
| | - D B Coelho
- 2 Sports Center (CEDUFOP), Federal University of Ouro Preto , Minas Gerais, Brazil
| | - E C Oliveira
- 2 Sports Center (CEDUFOP), Federal University of Ouro Preto , Minas Gerais, Brazil
| | - L K Becker
- 2 Sports Center (CEDUFOP), Federal University of Ouro Preto , Minas Gerais, Brazil
| | - W G Lima
- 1 Department of Biological Sciences (DECBI), Federal University of Ouro Preto , Minas Gerais, Brazil
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4
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Joukar S, Vahidi R, Farsinejad A, Asadi-Shekaari M, Shahouzehi B. Ameliorative Effects of Endurance Exercise with Two Different Intensities on Nandrolone Decanoate-Induced Neurodegeneration in Rats: Involving Redox and Apoptotic Systems. Neurotox Res 2017; 32:41-49. [PMID: 28144902 DOI: 10.1007/s12640-017-9705-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 10/20/2022]
Abstract
Despite the importance of this issue, less has been paid to the influence of exercise on the neural side effects of anabolic androgenic steroids and mechanisms. We investigated the effects of two levels of endurance exercise on neurodegeneration side effects of nandrolone. The study period was 8 weeks. Wistar rats were divided into nine groups including the control (CTL) group, mild exercise (mEx) group, and vehicle (Arach) group which received arachis oil intramuscularly, nandrolone (Nan) group which received nandrolone decanoate 5 mg/kg two times weekly, mEx+Arach group which treated with arachis oil along with mild exercise, mEx+Nan group which treated with nandrolone along with mild exercise, severe exercise (sEx) group, sEx+Arach, and sEx+Nan groups. Finally, brain samples were taken for histopathological, biochemical, and western blot analysis. Nandrolone significantly decreased the intact cells of the hippocampus, total antioxidant capacity (TAC) (P < 0.05 versus CTL and Arach groups), TAC to malondialdehyde ratio (TAC/MDA), and Bcl-2. Nandrolone increased the Bax/Bcl-2 ratio of the brain tissue (P < 0.01 versus CTL and Arach groups). Combination of mild exercise and nandrolone rescued the intact cells to some extent, and this effect was associated with the improvement of Bcl-2 level and Bax/Bcl-2 ratio of brain tissue. Combination of severe exercise and nandrolone rescued the intact cells and improved the TAC, TAC/MDA, and Bax/Bcl-2 ratios. The findings suggest that low- and high-intensity endurance exercise decreased the risk of neurodegeneration effect of nandrolone in the hippocampus of rats. This effect can be explained by the regulation of the redox system and cell homeostasis.
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Affiliation(s)
- Siyavash Joukar
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran. .,Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran. .,Department of Physiology and Pharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran. .,Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, P.O. Box 7616914115, Kerman, Iran.
| | - Reza Vahidi
- Department of Veterinary Sciences, Baft Branch, Islamic Azad University, Baft, Iran.
| | - Alireza Farsinejad
- Pathology and Stem Cell Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Department of Laboratory Science, Faculty of Allied Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Asadi-Shekaari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Beydolah Shahouzehi
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, P.O. Box 7616914115, Kerman, Iran
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5
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Claudio ERG, Almeida SA, Mengal V, Brasil GA, Santuzzi CH, Tiradentes RV, Gouvea SA, Bissoli NS, Santos RL, Abreu GR. Swimming training prevents coronary endothelial dysfunction in ovariectomized spontaneously hypertensive rats. ACTA ACUST UNITED AC 2017; 50:e5495. [PMID: 28099583 PMCID: PMC5264533 DOI: 10.1590/1414-431x20165495] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 11/10/2016] [Indexed: 11/22/2022]
Abstract
Estrogen deficiency and hypertension are considered major risk factors for the
development of coronary heart disease. On the other hand, exercise training is
considered an effective form to prevent and treat cardiovascular diseases. However,
the effects of swimming training (SW) on coronary vascular reactivity in female
ovariectomized hypertensive rats are not known. We aimed to evaluate the effects of
SW on endothelium-dependent coronary vasodilation in ovariectomized hypertensive
rats. Three-month old spontaneously hypertensive rats (SHR, n=50) were divided into
four groups: sham (SH), sham plus swimming training (SSW), ovariectomized (OVX), and
ovariectomized plus swimming training (OSW). The SW protocol (5 times/week, 60
min/day) was conducted for 8 weeks. The vasodilatory response was measured in
isolated hearts in the absence and presence of a nitric oxide synthase inhibitor
(L-NAME, 100 µM). Cardiac oxidative stress was evaluated in situ by
dihydroethidium fluorescence, while the expression of antioxidant enzymes (SOD-2 and
catalase) and their activities were assessed by western blotting and
spectrophotometry, respectively. Vasodilation in SHR was significantly reduced by
OVX, even in the presence of L-NAME, in conjunction with an increased oxidative
stress. These effects were prevented by SW, and were associated with a decrease in
oxidative stress. Superoxide dismutase 2 (SOD-2) and catalase expression increased
only in the OSW group. However, no significant difference was found in the activity
of these enzymes. In conclusion, SW prevented the endothelial dysfunction in the
coronary bed of ovariectomized SHR associated with an increase in the expression of
antioxidant enzymes, and therefore may prevent coronary heart disease in hypertensive
postmenopausal women.
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Affiliation(s)
- E R G Claudio
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - S A Almeida
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - V Mengal
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - G A Brasil
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - C H Santuzzi
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - R V Tiradentes
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - S A Gouvea
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - N S Bissoli
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - R L Santos
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - G R Abreu
- Departamento de Ciências Fisiológicas, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
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Endlich PW, Claudio ERG, Lima LCF, Ribeiro Júnior RF, Peluso AAB, Stefanon I, Bissoli NS, Lemos VS, Santos RASD, Abreu GRD. Exercise modulates the aortic renin-angiotensin system independently of estrogen therapy in ovariectomized hypertensive rats. Peptides 2017; 87:41-49. [PMID: 27884622 DOI: 10.1016/j.peptides.2016.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 11/15/2016] [Accepted: 11/21/2016] [Indexed: 01/08/2023]
Abstract
The renin-angiotensin-system is an important component of cardiovascular control and is up-regulated under various conditions, including hypertension and menopause. The aim of this study was to evaluate the effects of swimming training and estrogen therapy (ET) on angiotensin-II (ANG II)-induced vasoconstriction and angiotensin-(1-7) [ANG-(1-7)]-induced vasorelaxation in aortic rings from ovariectomized spontaneously hypertensive rats. Animals were divided into Sham (SH), Ovariectomized (OVX), Ovariectomized treated with E2 (OE2), Ovariectomized plus swimming (OSW) and Ovariectomized treated with E2 plus swimming (OE2+SW) groups. ET entailed the administration of 5μg of 17β-Estradiol three times per week. Swimming was undertaken for sixty minutes each day, five times per week. Both, training and ET were initiated seven days following ovariectomy. Forty-eight hours after the last treatment or training session, the animals' systolic blood pressures were measured, and blood samples were collected to measure plasma ANG II and ANG-(1-7) levels via radioimmunoassay. In aortic rings, the vascular reactivity to ANG II and ANG-(1-7) was assessed. Expression of ANG-(1-7) in aortic wall was analyzed by immunohistochemistry. The results showed that both exercise and ET increased plasma ANG II levels despite attenuating systolic blood pressure. Ovariectomy increased constrictor responses to ANG II and decreased dilatory responses to ANG-(1-7), which were reversed by swimming independently of ET. Moreover, it was observed an apparent increase in ANG-(1-7) content in the aorta of the groups subjected to training and ET. Exercise training may play a cardioprotective role independently of ET and may be an alternative to ET in hypertensive postmenopausal women.
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Affiliation(s)
- Patrick W Endlich
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil; Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Federal University of Valleys of Jequitinhonha and Mucuri, Teófilo Otoni, MG, Brazil
| | - Erick R G Claudio
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil
| | - Leandro C F Lima
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rogério F Ribeiro Júnior
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil
| | - Antonio A B Peluso
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ivanita Stefanon
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil
| | - Nazaré S Bissoli
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil
| | - Virginia S Lemos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Robson A S Dos Santos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Glaucia R de Abreu
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitoria, ES, Brazil.
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The Effects of Nandrolone Decanoate Along with Prolonged Low-Intensity Exercise on Susceptibility to Ventricular Arrhythmias. Cardiovasc Toxicol 2016; 16:23-33. [PMID: 25636207 DOI: 10.1007/s12012-015-9313-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We examined the influence of chronic administration of nandrolone decanoate with low-intensity endurance swimming exercise on susceptibility to lethal ventricular arrhythmias in rat. The animal groups included the control group, exercise group (EX), nandrolone group (Nan), vehicle group (Arach), trained vehicle group (Arach + Ex) and trained nandrolone group (Nan + Ex) that treated for 8 weeks. Then, arrhythmia induction was performed by intravenous infusion of aconitine and electrocardiogram recorded. Then, malondialdehyde (MDA), hydroxyproline (HYP) and glutathione peroxidase of heart tissue were measured. Chronic administration of nandrolone with low-intensity endurance swimming exercise had no significant effect on blood pressure, heart rate and basal ECG parameters except RR interval that showed increase (P < 0.05). Low-intensity exercise could prevent the incremental effect of nandrolone on MDA and HYP significantly. It also increased the heart hypertrophy index (P < 0.05) and reduced the abating effect of nandrolone on animal weighting. Nandrolone along with exercise significantly increased the duration of VF (P < 0.05) and reduced the VF latency (P < 0.05). The findings suggest that chronic co-administration of nandrolone with low-intensity endurance swimming exercise to some extent facilitates the occurrence of ventricular fibrillation in rat. Complementary studies are needed to elucidate the involved mechanisms of this abnormality.
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Abdollahi F, Joukar S, Najafipour H, Karimi A, Masumi Y, Binayi F. The risk of life-threatening ventricular arrhythmias in presence of high-intensity endurance exercise along with chronic administration of nandrolone decanoate. Steroids 2016; 105:106-12. [PMID: 26686897 DOI: 10.1016/j.steroids.2015.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/22/2015] [Accepted: 12/07/2015] [Indexed: 11/17/2022]
Abstract
Anabolic steroids used to improve muscular strength and performance in athletics. Its long-term consumption may induce cardiovascular adverse effects. We assessed the risk of ventricular arrhythmias in rats which subjected to chronic nandrolone plus high-intensity endurance exercise. Animals were grouped as; control (CTL), exercise (Ex): 8 weeks under exercise, vehicle group (Arach): received arachis oil, and Nan group: received nandrolone decanoate 5 mg/kg twice a week for 8 weeks, Arach+Ex group, and Nan+Ex. Finally, under anesthesia, arrhythmia was induced by infusion of 1.5 μg/0.1 mL/min of aconitine IV and ventricular arrhythmias were recorded for 15 min. Then, animals' hearts were excised and tissue samples were taken. Nandrolone plus exercise had no significant effect on blood pressure but decreased the heart rate (P<0.01) and increased the RR (P<0.01) and JT intervals (P<0.05) of electrocardiogram. Nandrolone+exercise significantly increased the ventricular fibrillation (VF) frequency and also decreased the VF latency (P<0.05 versus CTL group). Combination of exercise and nandrolone could not recover the decreasing effects of nandrolone on animals weight gain but, it enhanced the heart hypertrophy index (P<0.05). In addition, nandrolone increased the level of hydroxyproline (HYP) and malondialdehyde (MDA) but had not significant effect on glutathione peroxidase of heart. Exercise only prevented the effect of nandrolone on HYP. Nandrolone plus severe exercise increases the risk of VF that cannot be explained only by the changes in redox system. The intensification of cardiac hypertrophy and prolongation of JT interval may be a part of involved mechanisms.
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Affiliation(s)
- Farzane Abdollahi
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Physiology and Pharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Siyavash Joukar
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran; Department of Physiology and Pharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | - Hamid Najafipour
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Physiology and Pharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Abdolah Karimi
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Yaser Masumi
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Fateme Binayi
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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9
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Brasil GA, Lima EMD, Nascimento AMD, Caliman IF, Medeiros ARSD, Silva MSB, Abreu GRD, Reis AMD, Andrade TUD, Bissoli NS. Nandrolone decanoate induces cardiac and renal remodeling in female rats, without modification in physiological parameters: The role of ANP system. Life Sci 2015; 137:65-73. [DOI: 10.1016/j.lfs.2015.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/28/2015] [Accepted: 07/03/2015] [Indexed: 11/26/2022]
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10
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Ghorbani Baravati H, Joukar S, Fathpour H, Kordestani Z. Nandrolone Plus Moderate Exercise Increases the Susceptibility to Lethal Arrhythmias. Res Cardiovasc Med 2015; 4:e26233. [PMID: 26396972 PMCID: PMC4576214 DOI: 10.5812/cardiovascmed.26233v2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 01/14/2015] [Accepted: 01/26/2015] [Indexed: 11/30/2022] Open
Abstract
Background: Until now, no experimental study has directly assessed the arrhythmogenesis of chronic consumption of anabolic androgenic steroids along with moderate-intensity endurance exercise. Objectives: We evaluated the influence of integration of anabolic androgenic steroids along with moderate-intensity endurance exercise on susceptibility to lethal ventricular arrhythmias in rat. Materials and Methods: The animal groups were as follows: control group (CTL); exercise group (EX) which were under 6 weeks of treadmill exercise; nandrolone group (Nan) which received 5 mg/kg of nandrolone decanoate twice a week; vehicle group (Arach) which received Arachis oil (solvent of nandrolone); trained vehicle group (Arach + Ex); and trained nandrolone group (Nan + Ex). One day after ending of the intervention period, arrhythmia was inducted by intravenous infusion of aconitine and ventricular arrhythmias were recorded. Then malondialdehyde (MDA) and glutathione peroxidase (GPX) of heart tissue were measured. Results: Nandrolone, exercise, and their combination were associated with heart hypertrophy. Exercise could prevent the incremental effect of nandrolone on MDA/GPX ratio. Chronic administration of nandrolone with moderate-intensity endurance exercise had no significant effect on blood pressure, heart rate, and basal electrocardiographic parameters. Combination of nandrolone and exercise significantly increased the incidence of ventricular fibrillation (VF) and reduced the VF latency (P < 0.05). Conclusions: The findings suggest that chronic coadministration of nandrolone with moderate-intensity endurance exercise facilitates the VF occurrence in rat. Complementary studies are needed to elucidate the involved mechanisms of this abnormality.
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Affiliation(s)
- Hamideh Ghorbani Baravati
- Deptarment of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, IR Iran
| | - Siyavash Joukar
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, IR Iran
- Department of Physiology and Pharmacology, Kerman University of Medical Sciences, Kerman, IR Iran
- Corresponding author: Siyavash Joukar, Department of Physiology and Pharmacology, Kerman University of Medical Sciences, P. O. Box: 76169-14115, Kerman, IR Iran. Tel/Fax: +98-3433220081, E-mail: ,
| | - Hossein Fathpour
- Deptarment of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, IR Iran
| | - Zeinab Kordestani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, IR Iran
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11
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Influence of glutamine on the effect of resistance exercise on cardiac ANP in rats. REVISTA BRASILEIRA DE CIÊNCIAS DO ESPORTE 2015. [DOI: 10.1016/j.rbce.2013.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Endlich PW, Claudio ERG, da Silva Gonçalves WL, Gouvêa SA, Moysés MR, de Abreu GR. Swimming training prevents fat deposition and decreases angiotensin II-induced coronary vasoconstriction in ovariectomized rats. Peptides 2013; 47:29-35. [PMID: 23792185 DOI: 10.1016/j.peptides.2013.06.002] [Citation(s) in RCA: 9] [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] [Received: 05/13/2013] [Revised: 05/31/2013] [Accepted: 06/03/2013] [Indexed: 11/20/2022]
Abstract
We investigated the effects of chronic swimming training (ST) on the deposition of abdominal fat and vasoconstriction in response to angiotensin II (ANG II) in the coronary arterial bed of estrogen deficient rats. Twenty-eight 3-month old Wistar female rats were divided into 4 groups: sedentary sham (SS), sedentary-ovariectomized (SO), swimming-trained sham (STS) and swimming-trained ovariectomized (STO). ST protocol consisted of a continuous 60-min session, with a 5% BW load attached to the tail, completed 5 days/week for 8-weeks. The retroperitoneal, parametrial, perirenal and inguinal fat pads were measured. The intrinsic heart rate (IHR), coronary perfusion pressure (CPP) and a concentration-response curve to ANG II in the coronary bed was constructed using the Langendorff preparation. Ovariectomy (OVX) significantly reduced 17-β-estradiol plasma levels in SO and STO groups (p<0.05). The STO group had a significantly reduced retroperitoneal and parametrial fat pad compared with the SO group (p<0.05). IHR values were similar in all groups; however, baseline CPP was significantly reduced in the SO, STS and STO groups compared with the SS group (p<0.05). ANG II caused vasoconstriction in the coronary bed in a concentration-dependent manner. The SO group had an increased response to ANG II when compared with all other experimental groups (p<0.05), which was prevented by 8-weeks of ST in the STO group (p<0.05). OVX increased ANG II-induced vasoconstriction in the coronary vascular bed and abdominal fat pad deposition. Eight weeks of swimming training improved these vasoconstrictor effects and decreased abdominal fat deposition in ovariectomized rats.
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Affiliation(s)
- Patrick Wander Endlich
- Department of Physiological Sciences, Health Sciences Center, Federal University of the Espírito Santo, Vitória, Espírito Santo, Brazil.
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Claudio ERG, Endlich PW, Santos RL, Moysés MR, Bissoli NS, Gouvêa SA, Silva JF, Lemos VS, Abreu GR. Effects of chronic swimming training and oestrogen therapy on coronary vascular reactivity and expression of antioxidant enzymes in ovariectomized rats. PLoS One 2013; 8:e64806. [PMID: 23755145 PMCID: PMC3670897 DOI: 10.1371/journal.pone.0064806] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 04/19/2013] [Indexed: 01/14/2023] Open
Abstract
The aim of this study was to evaluate the effects of swimming training (SW) and oestrogen replacement therapy (ERT) on coronary vascular reactivity and the expression of antioxidant enzymes in ovariectomized rats. Animals were randomly assigned to one of five groups: sham (SH), ovariectomized (OVX), ovariectomized with E2 (OE2), ovariectomized with exercise (OSW), and ovariectomized with E2 plus exercise (OE2+SW). The SW protocol (5×/week, 60 min/day) and/or ERT were conducted for 8 weeks; the vasodilator response to bradykinin was analysed (Langendorff Method), and the expression of antioxidant enzymes (SOD-1 and 2, catalase) and eNOS and iNOS were evaluated by Western blotting. SW and ERT improved the vasodilator response to the highest dose of bradykinin (1000 ng). However, in the OSW group, this response was improved at 100, 300 and 1000 ng when compared to OVX (p<0,05). The SOD-1 expression was increased in all treated/trained groups compared to the OVX group (p<0,05), and catalase expression increased in the OSW group only. In the trained group, eNOS increased vs. OE2, and iNOS decreased vs. SHAM (p<0,05). SW may represent an alternative to ERT by improving coronary vasodilation, most likely by increasing antioxidant enzyme and eNOS expression and augmenting NO bioavailability.
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Affiliation(s)
- Erick R G Claudio
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitória-ES, Brazil.
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Miyoshi M, Watanabe T. Running training attenuates blood pressure and norepinephrine responses to immobilization stress in spontaneously hypertensive rats. JOURNAL OF PHYSICAL FITNESS AND SPORTS MEDICINE 2013. [DOI: 10.7600/jpfsm.2.365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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