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Alexandre-Santos B, Reis GDS, Medeiros GR, Stockler-Pinto MB, Oliveira NSC, Miranda-Alves L, Nóbrega ACLD, Magliano DC, Frantz EDC. Bisphenol S exposure induces cardiac remodeling and aggravates high-fat diet-induced cardiac hypertrophy in mice. ENVIRONMENTAL RESEARCH 2024; 261:119781. [PMID: 39142458 DOI: 10.1016/j.envres.2024.119781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 08/08/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
Bisphenol S (BPS) is widely used in the manufacture products and increase the risk of cardiovascular diseases. The effect of the association between obesity and BPS on cardiac outcomes is still unknown. Male C57BL/6 mice were divided into standard chow diet (SC; 15 kJ/g), standard chow diet + BPS (SCB), high-fat diet (HF; 21 kJ/g), and high-fat diet + BPS (HFB). Over 12 weeks, the groups were exposed to BPS through drinking water (dose: 25 μg/kg/day) and/or a HF diet. We evaluated: body mass (BM), total cholesterol, systolic blood pressure (SBP), left ventricle (LV) mass, and cardiac remodeling. In the SCB group, BM, total cholesterol, and SBP increase were augmented in relation to the SC group. In the HF and HFB groups, these parameters were higher than in the SC and SCB groups. Cardiac hypertrophy was evidenced by augmented LV mass and wall thickness, and ANP protein expression in all groups in comparison to the SC group. Only the HFB group had a thicker LV wall than SCB and HF groups, and increased cardiomyocyte area when compared with SC and SCB groups. Concerning cardiac fibrosis, SCB, HF, and HFB groups presented higher interstitial collagen area, TGFβ, and α-SMA protein expression than the SC group. Perivascular collagen area was increased only in the HF and HFB groups than SC group. Higher IL-6, TNFα, and CD11c protein expression in all groups than the SC group evidenced inflammation. All groups had elevated CD36 and PPARα protein expression in relation to the SC group, but only HF and HFB groups promoted cardiac steatosis with increased perilipin 5 protein expression than the SC group. BPS exposure alone promoted cardiac remodeling with pathological concentric hypertrophy, fibrosis, and inflammation. Diet-induced remodeling is aggravated when associated with BPS, with marked hypertrophy, alongside fibrosis, inflammation, and lipid accumulation.
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Affiliation(s)
- Beatriz Alexandre-Santos
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Guilherme Dos Santos Reis
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Gabriela Rodrigues Medeiros
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Milena Barcza Stockler-Pinto
- Research Center on Nutrigenetics and Nutrigenomics, Faculty of Nutrition, Fluminense Federal University, Niteroi, RJ, Brazil
| | | | - Leandro Miranda-Alves
- Laboratory of Experimental Endocrinology, Institute of Biomedical Science, Federal University of Rio de Janeiro, RJ, Brazil
| | | | - D'Angelo Carlo Magliano
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Laboratory of Experimental Endocrinology, Institute of Biomedical Science, Federal University of Rio de Janeiro, RJ, Brazil
| | - Eliete Dalla Corte Frantz
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil.
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Alexandre-Santos B, Mendes ABA, Reis GDS, Alves APDP, Freitas CO, Lima GF, Evangelista JF, Matsuura C, Miranda-Alves L, Nóbrega ACLD, Magliano DC, Motta NAVD, Brito FCF, Frantz EDC. Tributyltin-induced visceral adiposity is associated with impaired redox balance in white adipose tissue of male rats. Mol Cell Endocrinol 2024; 593:112343. [PMID: 39147263 DOI: 10.1016/j.mce.2024.112343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 08/08/2024] [Accepted: 08/12/2024] [Indexed: 08/17/2024]
Abstract
Tributyltin (TBT) is an organotin compound that has several adverse health effects, including the development of obesity. Although obesity is strongly associated with adipose redox imbalance, there is a lack of information on whether TBT promotes a pro-oxidative environment in WAT. Thus, adult male Wistar rats were randomly exposed to either vehicle (ethanol 0.4%) or TBT (1000 ng/kg) for 30 days. Body and fat pad masses, visceral fat morphology, lipid peroxidation, protein carbonylation, redox status markers, and catalase activity were evaluated. TBT promoted increased adiposity and visceral fat, with hypertrophic adipocytes, but did not alter body mass and subcutaneous fat. ROS production and lipid peroxidation were elevated in TBT group, as well as catalase protein expression and activity, although protein oxidation and glutathione peroxidase protein expression remained unchanged. In conclusion, this is the first study to demonstrate that subacute TBT administration leads to visceral adipose redox imbalance, with increased oxidative stress. This enlights the understanding of the metabolic toxic outcomes of continuous exposure to TBT in mammals.
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Affiliation(s)
- Beatriz Alexandre-Santos
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Ana Beatriz Araújo Mendes
- Laboratory of Experimental Pharmacology, Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Guilherme Dos Santos Reis
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Ana Paula de Paula Alves
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Sciences and Biotechnology Graduate Program, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Camila Oliveira Freitas
- Laboratory of Experimental Pharmacology, Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Gabriel Ferreira Lima
- Laboratory of Experimental Pharmacology, Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | | | - Cristiane Matsuura
- Department of Pharmacology and Psychobiology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leandro Miranda-Alves
- Laboratory of Experimental Endocrinology, Institute of Biomedical Science, Federal University of Rio de Janeiro, RJ, Brazil
| | | | - D'Angelo Carlo Magliano
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Sciences and Biotechnology Graduate Program, Fluminense Federal University, Niteroi, RJ, Brazil; Laboratory of Experimental Endocrinology, Institute of Biomedical Science, Federal University of Rio de Janeiro, RJ, Brazil; Pathology Graduate Program, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Nadia Alice Vieira da Motta
- Laboratory of Experimental Pharmacology, Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Fernanda Carla Ferreira Brito
- Laboratory of Experimental Pharmacology, Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Eliete Dalla Corte Frantz
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil.
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Salles ACP, Alexandre-Santos B, de Souza Carvalho T, Proença AB, Sepúlveda-Fragoso V, Fernandes T, Oliveira EM, da Nóbrega ACL, Frantz EDC, Magliano DC. ER stress improvement by aerobic training or enalapril differently ameliorates pathological cardiac remodeling in obese mice. Mol Cell Biochem 2024; 479:3167-3179. [PMID: 38308790 DOI: 10.1007/s11010-024-04925-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 01/05/2024] [Indexed: 02/05/2024]
Abstract
Overactivation of the classic arm of the renin-angiotensin system (RAS) is one of the main mechanisms involved in obesity-related cardiac remodeling, and a possible relationship between RAS and ER stress in the cardiovascular system have been described. Thus, the aim of this study is to evaluate if activating the protective arm of the RAS by ACE inhibition or aerobic exercise training could overturn diet-induced pathological cardiac hypertrophy by attenuating ER stress. Male C57BL/6 mice were fed a control (SC) or a high-fat diet (HF) for 16 weeks. In the 8th week, HF-fed animals were randomly divided into HF, enalapril treatment (HF-En), and aerobic exercise training (HF-Ex) groups. Body mass (BM), food and energy intake, plasma analyzes, systolic blood pressure (SBP), physical conditioning, and plasma ACE and ACE2 activity were evaluated. Cardiac morphology, and protein expression of hypertrophy, cardiac metabolism, RAS, and ER stress markers were assessed. Data presented as mean ± standard deviation and analyzed by one-way ANOVA with Holm-Sidak post-hoc. HF group had increased BM and SBP, and developed pathological concentric cardiac hypertrophy, with overactivation of the classic arm of the RAS, and higher ER stress. Both interventions reverted the increase in BM, and SBP, and favored the protective arm of the RAS. Enalapril treatment improved pathological cardiac hypertrophy with partial reversal of the concentric pattern, and slightly attenuated cardiac ER stress. In contrast, aerobic exercise training induced physiological eccentric cardiac hypertrophy, and fully diminished ER stress.
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Affiliation(s)
- Amanda Conceição Pimenta Salles
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Beatriz Alexandre-Santos
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Thais de Souza Carvalho
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Ana Beatriz Proença
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Vinicius Sepúlveda-Fragoso
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Tiago Fernandes
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Edilamar Menezes Oliveira
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil
- National Institute for Science & Technology - INCT (In)activity & Exercise, CNPq, Niteroi, RJ, Brazil
| | - Antonio Claudio Lucas da Nóbrega
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
- National Institute for Science & Technology - INCT (In)activity & Exercise, CNPq, Niteroi, RJ, Brazil
| | - Eliete Dalla Corte Frantz
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
- National Institute for Science & Technology - INCT (In)activity & Exercise, CNPq, Niteroi, RJ, Brazil
| | - D'Angelo Carlo Magliano
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil.
- Department of Morphology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil.
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The infarct-limiting efficacy of deltorphin-II in old rats with diet-induced metabolic syndrome. ACTA BIOMEDICA SCIENTIFICA 2022. [DOI: 10.29413/abs.2022-7.6.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background. The discovery of new pharmacological agents for myocardial protection during reperfusion injury is an urgent goal of modern physiology and pharmacology.The aim of the study. To identify the potential for protecting the myocardium from reperfusion injury by administering the delta-2 opioid receptor agonist deltorphin-II prior to reperfusion in old rats with diet-induced metabolic syndrome.Materials and methods. The study was performed on Wistar rats aged 60 days (young rats) and 450 days (old rats) before the onset of a study. Metabolic syndrome (MetS) was modeled for 84 days with a high-carbohydrate high-fat diet (16 % protein, 21 % fat, 46 % carbohydrate) with the replacement of drinking water with 20 % fructose solution. Myocardial infarction was performed by 45-min coronary occlusion followed by 120-min reperfusion; the size of the area of the necrotic myocardium was determined relative to the size of the hypoperfusion zone. The delta-2 opioid receptor agonist deltorphin-II was administered once intravenously 5 minutes before the end of ischemia.Results. It was found that coronary occlusion and subsequent reperfusion both in groups of young and old rats led to the formation of myocardial infarction (necrosis), the size of which was 45 % of the size of the risk zone. Administration of deltorphin-II in old rats led to a limitation of infarct size to 30 % of the size of the risk zone, i. e. 1.7-fold. The use of deltorphin-II in old rats with MetS contributed to a decrease in infarct size to 27 % of the size of the risk zone (1.5 times). The obtained results demonstrate the cardioprotective efficacy of the delta-2 opioid receptor agonist deltorphin-II in aging and metabolic syndrome in rats.Conclusions. These data may serve as a basis for conducting preclinical studies of deltorphin-II as a drug for treatment of acute myocardial infarction.
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Alexandre-Santos B, Magliano DC, Giori IG, Medeiros GRDO, Vieira CP, Conte-Junior CA, Nobrega ACLD, Frantz EDC. Renin-angiotensin system modulation through enalapril and/or exercise training improves visceral adiposity in obese mice. Life Sci 2022; 291:120269. [PMID: 34974075 DOI: 10.1016/j.lfs.2021.120269] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Obesity-related metabolic diseases occur as a result of disruptions in white adipose tissue (WAT) plasticity, especially through visceral fat accumulation and adipocyte hypertrophy. This study aimed to evaluate the impact of renin-angiotensin system (RAS) and bradykinin receptors modulation by enalapril treatment and/or exercise training on WAT morphology and related deleterious outcomes. METHODS Male C57BL/6 mice were fed either a standard chow or a high-fat (HF) diet for 16 weeks. At the 8th week, HF-fed animals were divided into sedentary (HF), enalapril treatment (HF-E), exercise training (HF-T), and enalapril treatment plus exercise training (HF-ET) groups. Following the experimental protocol, body mass gain, adiposity index, insulin resistance, visceral WAT morphometry, renin-angiotensin system, and bradykinin receptors were evaluated. RESULTS The HF group displayed increased adiposity, larger visceral fat mass, and adipocyte hypertrophy, which was accompanied by insulin resistance, overactivation of Ang II/AT1R arm, and favoring of B1R in bradykinin receptors profile. All interventions ameliorated visceral adiposity and related outcomes by favoring the Ang 1-7/MasR arm and the B2R expression in B1R/B2R ratio. However, combined therapy additively reduced Ang II/Ang 1-7 ratio. CONCLUSION Our results suggest that Ang 1-7/MasR arm and B2R activation might be relevant targets in the treatment of visceral obesity.
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Affiliation(s)
- Beatriz Alexandre-Santos
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - D'Angelo Carlo Magliano
- Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Isabele Gomes Giori
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | | | - Carla P Vieira
- Department of Food Technology, Faculty of Veterinary, Fluminense Federal University, Niteroi, RJ, Brazil; Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carlos Adam Conte-Junior
- Department of Food Technology, Faculty of Veterinary, Fluminense Federal University, Niteroi, RJ, Brazil; Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Antonio Claudio Lucas da Nobrega
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; National Institute for Science & Technology - INCT Physical (In)activity & Exercise, CNPq, Niteroi, RJ, Brazil
| | - Eliete Dalla Corte Frantz
- Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; National Institute for Science & Technology - INCT Physical (In)activity & Exercise, CNPq, Niteroi, RJ, Brazil.
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Grill S, Yahiaoui-Doktor M, Basrai M, Struck J, Schulte J, Berling-Ernst A, Engel C, Ullrich M, Lammert J, Bischoff SC, Schmidt T, Niederberger U, Chronas D, Rhiem K, Schmutzler R, Halle M, Kiechle M. Precursor fractions of neurotensin and enkephalin might point to molecular mechanisms of cancer risk modulation during a lifestyle-intervention in germline BRCA1/2 gene mutation carriers. Breast Cancer Res Treat 2021; 186:741-752. [PMID: 33543354 PMCID: PMC8019429 DOI: 10.1007/s10549-020-06070-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Germline BRCA1/2 mutation carriers (gBMC) face increased cancer risks that are modulated via non-genetic lifestyle factors whose underlying molecular mechanisms are unknown. The peptides Neurotensin (NT) and Enkephalin (ENK)-involved in tumorigenesis and obesity-related diseases-are of interest. We wanted to know whether these biomarkers differ between gBMC and women from the general population and what effect a 1-year lifestyle-intervention has in gBMC. METHODS The stable precursor fragments pro-NT and pro-ENK were measured at study entry (SE), after 3 and 12 months for 68 women from LIBRE-1 (a controlled lifestyle-intervention feasibility trial for gBMC involving structured endurance training and the Mediterranean Diet). The SE values were compared with a cohort of the general population including female subjects with and without previous cancer disease, non-suggestive for hereditary breast and ovarian cancer (OMA-reference). For LIBRE-1, we analysed the association between the intervention-related change in the two biomarkers and certain lifestyle factors. RESULTS At SE, gBMC had a higher median pro-NT than OMA-reference (in the subgroups with previous cancer 117 vs. 91 pmol/L, p = 0.002). Non-diseased gBMC had lower median pro-ENK levels when compared to the non-diseased reference group. VO2peak and pro-NT 1-year change in LIBRE-1 were inversely correlated (r = - 0.435; CI - 0.653 to - 0.151; p = 0.004). Pro-ENK correlated positively with VO2peak at SE (r = 0.323; CI 0.061-0.544; p = 0.017). Regression analyses showed an inverse association of 1-year changes for pro-NT and Omega-6/Omega-3 (Estimate: - 37.9, p = 0.097/0.080) in multivariate analysis. CONCLUSION Our results give first indications for lifestyle-related modification particularly of pro-NT in gBMC.
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Affiliation(s)
- Sabine Grill
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany.
| | - Maryam Yahiaoui-Doktor
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Maryam Basrai
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | | | | | - Anika Berling-Ernst
- Department of Prevention, Rehabilitation and Sports Medicine, Faculty of Medicine, University Hospital Rechts Der Isar, Technical University of Munich (TUM), Munich, Germany
| | - Christoph Engel
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Mirjam Ullrich
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Jacqueline Lammert
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Stephan C Bischoff
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | - Thorsten Schmidt
- Comprehensive Cancer Center, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Uwe Niederberger
- Institute for Medical Psychology and Medical Sociology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Dimitrios Chronas
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Kerstin Rhiem
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - Rita Schmutzler
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - Martin Halle
- Department of Prevention, Rehabilitation and Sports Medicine, Faculty of Medicine, University Hospital Rechts Der Isar, Technical University of Munich (TUM), Munich, Germany
| | - Marion Kiechle
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
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Rahman N, Mihalkovic A, Geary O, Haffey R, Hamilton J, Thanos PK. Chronic aerobic exercise: Autoradiographic assessment of GABA(a) and mu-opioid receptor binding in adult rats. Pharmacol Biochem Behav 2020; 196:172980. [PMID: 32593790 DOI: 10.1016/j.pbb.2020.172980] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/21/2022]
Abstract
Exercise programs have shown great potential for both the prevention and treatment of substance use disorder (SUD). As exercise has been shown to have potent effects on physical and psychological health, it is reasonable to examine the mechanism of how exercise can be used as an adjunct treatment for addiction. The present study examined the effects of chronic aerobic (treadmill) exercise on both GABA(a) and mu-opioid receptor levels in the brains of male and female rats. GABA(a) receptor binding, measured by [3H] Flunitrazepam, was increased in the cingulate cortex following exercise, but only in females. Mu-opioid receptor expression, measured by [3H] ([D-Ala2, N-MePhe4, Gly-ol]-enkephalin) (DAMGO), showed no effect of exercise while showing an effect of sex, with increased [3H] DAMGO binding in the brains of sedentary males compared to that of sedentary females. Our findings support the potential role for GABA(a) signaling in the cingulate cortex as part of the mechanism of action of aerobic exercise. These data, along with prior reports, aid our understanding of the neurochemical impact and mechanism of chronic aerobic exercise on neuropsychiatric disease, particularly regarding addiction.
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Affiliation(s)
- Nabeel Rahman
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America
| | - Abrianna Mihalkovic
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America; Department of Psychology, University at Buffalo, Buffalo, NY 14203, United States of America
| | - Olivia Geary
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America
| | - Rylee Haffey
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America
| | - John Hamilton
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America; Department of Psychology, University at Buffalo, Buffalo, NY 14203, United States of America
| | - Panayotis K Thanos
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, United States of America; Department of Psychology, University at Buffalo, Buffalo, NY 14203, United States of America.
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Luo F, Xu R, Song G, Xue D, He X, Xia Y. Alleviation of TGF-β1 induced tubular epithelial-mesenchymal transition via the δ-opioid receptor. FEBS J 2020; 288:1243-1258. [PMID: 32563195 DOI: 10.1111/febs.15459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 02/16/2020] [Accepted: 06/16/2020] [Indexed: 02/06/2023]
Abstract
Renal fibrosis is a common pathological feature of progressive chronic kidney disease (CKD). It is indicated that transforming growth factor-β1 (TGF-β1) plays as a central mediator in renal fibrosis. The present study aimed to investigate the role of δ-opioid receptor (DOR) on renal fibrosis of the rat renal proximal tubular epithelial cell line (NRK-52E) induced by TGF-β1 and to elucidate its underlying mechanism, as well as its involvement in signaling pathways. Cells were treated with TGF-β1 (10 ng·mL-1 ), along with a specific DOR agonist (UFP-512) or naltrindole (a DOR antagonist). Cell viability and morphology, as well as cell migration, were measured after drug administration. Western blotting was employed to examine the extracellular matrix (ECM) protein Fibronectin, and the tubular epithelial-mesenchymal transition (EMT) markers (E-cadherin and α-smooth muscle actin (α-SMA)), signal transducer (p-Smad3), and EMT-regulatory gene (Snail). The expression level of phosphorylated Akt and p38 was also examined. Our results showed that TGF-β1 induced fibroblastic appearance and increased the expression of Fibronectin, α-SMA, P-Smad3, and Snail, while it decreased the expression of E-cadherin in NRK-52E cells. Moreover, TGF-β1 induced the activation of Akt and p38 MAPK signaling pathways. DOR activation was found to efficiently block morphological changes and cell migration, as long as the expression changes of Fibronectin, E-cadherin, α-SMA, P-Smad3, Snail, P-Akt, and P-p38 were induced by TGF-β1. These findings suggest that DOR may serve as an antifibrotic factor for renal proximal tubule cells by inhibiting the fibrosis process via TGF-β/Smad, Akt, and p38 MAPK signaling pathways.
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Affiliation(s)
- Fengbao Luo
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Renfang Xu
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Guanglai Song
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Dong Xue
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xiaozhou He
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Ying Xia
- Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function, Fudan University, Shanghai, China
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França GDO, Frantz EDC, Magliano DC, Bargut TCL, Sepúlveda-Fragoso V, Silvares RR, Daliry A, Nascimento ARD, Borges JP. Effects of short-term high-intensity interval and continuous exercise training on body composition and cardiac function in obese sarcopenic rats. Life Sci 2020; 256:117920. [PMID: 32522571 DOI: 10.1016/j.lfs.2020.117920] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 01/03/2023]
Abstract
AIM We investigated the effects of high-intensity interval and continuous short-term exercise on body composition and cardiac function after myocardial ischemia-reperfusion injury (IRI) in obese rats. METHODS Rats fed with a standard chow diet (SC) or high-fat diet (HFD) for 20 weeks underwent systolic blood pressure (SBP), glycemia and dual-energy X-ray absorptiometry analyses. Then, animals fed with HFD were subdivided into three groups: sedentary (HFD-SED); moderate-intensity continuous training (HFD-MICT); and high-intensity interval training (HFD-HIIT). Exercised groups underwent four isocaloric aerobic exercise sessions, in which HFD-MICT maintained the intensity continuously and HFD-HIIT alternated it. After exercise sessions, all groups underwent global IRI and myocardial infarct size (IS) was determined histologically. Fat and muscle mass were weighted, and protein levels involved in muscle metabolism were assessed in skeletal muscle. RESULTS HFD-fed versus SC-fed rats reduced lean body mass by 31% (P < 0.001), while SBP, glycemia and body fat percentage were increased by 10% (P = 0.04), 30% (P = 0.006) and 54% (P < 0.001); respectively. HFD-induced muscle atrophy was restored in exercised groups, as only HFD-SED presented lower gastrocnemius (32%; P = 0.001) and quadriceps mass (62%; P < 0.001) than SC. PGC1-α expression was 2.7-fold higher in HFD-HIIT versus HFD-SED (P = 0.04), whereas HFD-HIIT and HFD-MICT exhibited 1.7-fold increase in p-mTORSer2481 levels compared to HFD-SED (P = 0.04). Although no difference was detected among groups for IS (P = 0.30), only HFD-HIIT preserved left-ventricle developed pressure after IRI (+0.7 mmHg; P = 0.9). SIGNIFICANCE Short-term exercise, continuous or HIIT, restored HFD-induced muscle atrophy and increased mTOR expression, but only HIIT maintained myocardial contractility following IRI in obese animals.
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Affiliation(s)
- Guilherme de Oliveira França
- Laboratory of Physical Activity and Health Promotion, Institute of Physical Education and Sports, University of Rio de Janeiro State, Rio de Janeiro, RJ, Brazil; Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - Eliete Dalla Corte Frantz
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil; National Institute for Science and Technology - INCT (In)activity and Exercise, CNPq - Niteroi, RJ, Brazil; Department of Morphology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - D'Angelo Carlo Magliano
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | | | - Vinicius Sepúlveda-Fragoso
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology, Biomedical Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Raquel Rangel Silvares
- Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - Anissa Daliry
- Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | | | - Juliana Pereira Borges
- Laboratory of Physical Activity and Health Promotion, Institute of Physical Education and Sports, University of Rio de Janeiro State, Rio de Janeiro, RJ, Brazil.
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