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Hemme P, Philippe JC, Medeiros A, Alekhin A, Houver S, Gallais Y, Sacuto A, Forget A, Colson D, Mantri S, Xu B, Bellaiche L, Cazayous M. Tuning the Multiferroic Properties of BiFeO_{3} under Uniaxial Strain. Phys Rev Lett 2023; 131:116801. [PMID: 37774288 DOI: 10.1103/physrevlett.131.116801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/15/2023] [Indexed: 10/01/2023]
Abstract
More than twenty years ago, multiferroic compounds combining in particular magnetism and ferroelectricity were rediscovered. Since then, BiFeO_{3} has emerged as the most outstanding multiferroic by combining at room temperature almost all the fundamental or applicative properties that may be desired: electroactive spin wave excitations called electromagnons, conductive domain walls, or a low band gap of interest for magnonic devices. All these properties have so far only been discontinuously strain engineered in thin films according to the lattice parameter imposed by the substrate. Here we explore the ferroelectricity and the dynamic magnetic response of BiFeO_{3} bulk under continuously tunable uniaxial strain. Using elasto-Raman spectroscopy, we show that the ferroelectric soft mode is strongly enhanced under tensile strain and driven by the volume preserving deformation at low strain. The magnonic response is entirely modified with low energy magnon modes being suppressed for tensile strain above pointing out a transition from a cycloid to an homogeneous magnetic state. Effective Hamiltonian calculations show that the ferroelectric and the antiferrodistortive modes compete in the tensile regime. In addition, the homogeneous antiferromagnetic state becomes more stable compared to the cycloidal state above a +2% tensile strain close to the experimental value. Finally, we reveal the ferroelectric and magnetic orders of BiFeO_{3} under uniaxial strain and how the tensile strain allows us to unlock and to modify in a differentiated way the polarization and the magnetic structure.
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Affiliation(s)
- P Hemme
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - J-C Philippe
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - A Medeiros
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120, Palaiseau, France
| | - A Alekhin
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - S Houver
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - Y Gallais
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - A Sacuto
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
| | - A Forget
- Service de Physique de l'Etat Condensé, CEA Saclay, IRAMIS, SPEC (CNRS URA 2464), F-91191 Gif sur Yvette, France
| | - D Colson
- Service de Physique de l'Etat Condensé, CEA Saclay, IRAMIS, SPEC (CNRS URA 2464), F-91191 Gif sur Yvette, France
| | - S Mantri
- Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - B Xu
- Institute of Theoretical and Applied Physics, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - L Bellaiche
- Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - M Cazayous
- Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
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Gomes MFP, de Moura EDOC, Cardoso NM, da Silva GA, Dos Santos ACC, de Souza FS, Estadella D, Lambertucci RH, Lago JHG, Medeiros A. Supplementation with okra combined or not with exercise training is able to protect the heart of animals with metabolic syndrome. Sci Rep 2023; 13:1468. [PMID: 36702820 PMCID: PMC9879946 DOI: 10.1038/s41598-023-28072-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 01/12/2023] [Indexed: 01/27/2023] Open
Abstract
The metabolic syndrome (MetS) is a clinical manifestation strongly associated with cardiovascular disease, the main cause of death worldwide. In view of this scenario, many therapeutic proposals have appeared in order to optimize the treatment of individuals with MetS, including the practice of exercise training (ET) and the consumption of okra (O). The aim of the present study was to evaluate the effect of O consumption and/or ET in animals with MetS. In all, 32 male Zucker rats (fa/fa) at 10 weeks old were randomly distributed into four groups of 8 animals each: MetS, MetS+O, MetS+ET and MetS+ET+O, and 8 lean Zucker rats (fa/ +) comprised the control group. Okra was administered by orogastric gavage 2x/day (morning and night, 100 mg/kg), 5 days/week, for 6 weeks. The ET was performed on a treadmill 1x/day (afternoon), 5 days/week, 60 min/day, in an intensity of 70% of maximal capacity, for the same days of O treatment. It was found that, O consumption alone was able to promote improved insulin sensitivity (MetS 93.93 ± 8.54 mg/dL vs. MetS+O 69.95 ± 18.7 mg/dL, p ≤ 0.05, d = 1.65, CI = 50.32 -89.58, triglyceride reduction (MetS 492.9 ± 97.8 mg/dL vs. MetS+O 334.9 ± 98.0 mg/dL, p ≤ 0.05, d = 1.61, CI = 193.2-398.7). In addition, it promoted a reduction in systolic blood pressure (MetS 149.0 ± 9.3 mmHg vs. MetS+O 132.0 ± 11.4 mmHg, p ≤ 0.05, d = 1.63, CI = 120-140), prevented an increase in cardiac collagen (MetS 12.60 ± 2.08% vs. MetS+O 7.52 ± 0.77%, p ≤ 0.05, d = 3.24, CI = 6.56-8.49). When associated with ET, the results were similar. Thus, we conclude that O consumption combined or not with aerobic ET can have a protective effect on the cardiac tissue of rats with MetS.
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Affiliation(s)
- Moisés Felipe Pereira Gomes
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil.
- Center for Applied Social Sciences and Health, Universidade Católica de Santos (Unisantos), Av. Conselheiro Nébias, 300, Vila Matias, Santos, SP, 11015-002, Brazil.
| | | | - Naiara Magalhães Cardoso
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
| | - Graziele Aparecida da Silva
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
| | - Ana Carolina Cardoso Dos Santos
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
| | - Fernanda Samantha de Souza
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo (UNIFESP), Rua Prof. Artur Riedel, n° 275, Eldorado, Diadema, SP, 09972-270, Brazil
| | - Débora Estadella
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
| | - Rafael Herling Lambertucci
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
| | - João Henrique Ghilardi Lago
- Center of Natural and Human Sciences, Universidade Federal Do ABC, Av. Dos Estados, 500, Bangú, Santo André, SP, 09210-580, Brazil
| | - Alessandra Medeiros
- Department of Bioscience, Universidade Federal de São Paulo (UNIFESP), R. Silva Jardim, 136 - Vila Matias, Santos, SP, 11015-020, Brazil
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da Silva MM, Gomes MFP, de Moura EDOC, Veras MM, Kubota MC, Takano AP, dos Santos ACC, José CGDR, Souza GADS, Cardoso NM, Estadella D, Lambertucci RH, Medeiros A. Aerobic exercise training combined or not with okra consumption as a strategy to prevent kidney changes caused by metabolic syndrome in Zucker rats. PLoS One 2022; 17:e0269418. [PMID: 35657982 PMCID: PMC9165804 DOI: 10.1371/journal.pone.0269418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 05/20/2022] [Indexed: 11/18/2022] Open
Abstract
The complications of Metabolic Syndrome (MetS) include kidney disease, and most dialysis patients are diagnosed with MetS. The benefit of exercise training (ET) for MetS treatment is already well defined in the literature, but the antidiabetic and antihyperlipidemic benefits of okra (O) have been discovered only recently. The aim of this study was to evaluate the effects of O and/or ET supplementation on renal function and histology; serum urea and creatinine value; inflammation (IL-6, IL-10, TNF-α) and oxidative stress in renal tissue. For this, 32 Zucker rats (fa/fa) were randomly separated into four groups of 8 animals each: Metabolic Syndrome (MetS), MetS + Okra (MetS + O), MetS + Exercise Training (MetS + ET), and MetS + Exercise Training and Okra (MetS + ET + O), and 8 Zucker lean (fa/+) rats comprised the Control group (CTL). Okra was administered by orogastric gavage 2x/day (morning and night, 100 mg/kg) and ET performed on the treadmill, at moderate intensity, 1h/day, 5x/week for 6 weeks. Although the renal function was not altered, the animals with MetS showed greater fibrotic deposition accompanied by a worse stage of renal injury, in addition to increased kidney weight. Although all interventions were beneficial in reducing fibrosis, only ET combined with O was able to improve the degree of renal tissue impairment. ET improved the anti-inflammatory status and reduced nitrite levels, but the combination of ET and O was more beneficial as regards catalase activity. Okra consumption alone did not promote changes in inflammatory cytokines and oxidative stress in the kidney. In conclusion, ET combined or not with O seems to be beneficial in preventing the progression of renal disease when renal function is not yet altered.
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Affiliation(s)
- Monique Marques da Silva
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | | | | | - Mariana Matera Veras
- Laboratory of Environmental Air Pollution, Department of Pathology, University of São Paulo - School of Medicine, São Paulo, Brazil
| | - Melina Chiemi Kubota
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | - Ana Paula Takano
- Laboratory of Environmental Air Pollution, Department of Pathology, University of São Paulo - School of Medicine, São Paulo, Brazil
| | | | | | | | - Naiara Magalhães Cardoso
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | - Debora Estadella
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
| | - Rafael Herling Lambertucci
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
| | - Alessandra Medeiros
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
- * E-mail:
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Lopes BT, Montrezol FT, Silva Terra VD, Medeiros A. A Single Mindfulness-Based Meditation Session Can Produce Reductions in Cardiovascular Risk in Hypertensive Patients: A Pilot Study. Altern Ther Health Med 2022; 28:18-23. [PMID: 34144530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND Several non-drug treatment approaches for systemic arterial hypertension have been studied aimed at reducing the adverse effects of this clinical condition. In addition to exercise training, which already has many of its modalities consolidated in the scientific field, body and mind practices have gained strength and deserve attention in the science and treatment of hypertension. The literature shows that meditation practices have numerous health benefits, one of which is blood pressure (BP) control. OBJECTIVE This study aimed to evaluate the acute effects of a single mindfulness-based meditation on BP in adults with hypertension. METHODS Research was developed that evaluated the BP of 5 adult women with controlled hypertension. As a data collection instrument, we used 2 sessions of ambulatory BP monitoring (ABPM): the first was a control session and the second a meditation session. Systolic (SBP), diastolic (DBP) and mean blood pressure (MBP) were evaluated at the pre- and post-session in addition to heart rate (HR), with clinical and ambulatorial measurements, during the day, night, morning surge and a 24-hour period. Data analysis was performed using one-way analysis of variance (ANOVA) for the ABPM data and two-way ANOVA to analyze blood pressure. RESULTS The main results found were a statistically significant reduction in SBP in the morning and a tendency toward a significant decrease in MBP during the same period (P = .057). There were no significant changes in the other variables analyzed. CONCLUSION Therefore, we concluded that a single meditation session was effective only in reducing morning SBP.
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Curi HT, Dias CT, da Luz Camargo MLM, Dos Santos Gomez P, Gomes MFP, Beserra-Filho JIA, Medeiros A, Ribeiro AM, Simabuco FM, Lambertucci RH, Mendes-da-Silva C. Maternal high-fat diet increases anhedonic behavior and modulates hippocampal Mash1 and BDNF expression in adult offspring. Neurosci Lett 2021; 764:136239. [PMID: 34509569 DOI: 10.1016/j.neulet.2021.136239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/03/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND The consumption of a high-fat diet (HFD) during pregnancy and perinatal periods can lead to long-term effects in the offspring central nervous system, affecting pathways related to neurogenesis and behavior, and increasing predispositions to depressive and anxiety-like behaviors. Thus, this study aimed to investigate the effects of a maternal HFD on the hippocampi of adult offspring and behaviors related to anxiety and depression. METHODS The protein and mRNA expression of the brain-derived neurotrophic factor (BDNF), Mash1, Notch1, Hes5, serotonin transporter (SERT), 5-HT1A serotonergic receptor (5-HT1A), tryptophan hydroxylase 2 (TPH2, key enzyme of serotonin synthesis), JNK and pJNK were analyzed in the hippocampi of male Swiss mice. Hippocampal serotonin levels were measured using ELISA. The lipid peroxidation, total oxidant status, total antioxidant status, and GSH/GSSG were evaluated as oxidative stress measures. For the behavioral analysis, the open field, elevated plus maze, and sucrose preference tests were used. RESULTS Maternal HFD led to increased body weight in dams and their offspring, as well as altered body composition and LDL levels in the offspring. There were no alterations in oxidative stress or JNK phosphorylation. Hippocampal Mash1 and BDNF expression were altered in HFD offspring. The HFD offspring exhibited anhedonic behavior. CONCLUSION These findings suggest that maternal HFD leads to long-term alterations in the offspring's neurotrophic systems, impairing their behavior.
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Affiliation(s)
- Haidar Tafner Curi
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Clarissa Tavares Dias
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | | | - Paula Dos Santos Gomez
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Moisés Felipe Pereira Gomes
- Laboratory of Experimental Physical Training, Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, SP, Brazil
| | - José Ivo Araujo Beserra-Filho
- Laboratory of Neuroscience and Bioprospecting of Natural Products, Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, SP, Brazil
| | - Alessandra Medeiros
- Laboratory of Experimental Physical Training, Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, SP, Brazil
| | - Alessandra Mussi Ribeiro
- Laboratory of Neuroscience and Bioprospecting of Natural Products, Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, SP, Brazil
| | - Fernando Moreira Simabuco
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas (UNICAMP), Limeira, Sao Paulo, Brazil
| | - Rafael Herling Lambertucci
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Cristiano Mendes-da-Silva
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil.
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Bredemeier M, Duarte A, Pinheiro M, Stadler B, Macieira JC, Ranza R, Miranda J, Valim V, Castro G, Bertolo M, Sauma MDF, Fernandes V, Medeiros A, Botelho R, Brenol C, Negrão Gonçalo Dias D, Carvalho H, Studart S, Da Rocha Castelar Pinheiro G, Rocha L, Pereira I, Ohira Gazzeta M, Maria Kakehasi A, Louzada P, Hayata ALS, Pina F, Lupo C, Balarini L, Silveira I, Kowalski S, Titton D, Chakr R, Ranzolin A, Laurindo I, Xavier R. POS0676 SURVIVAL OF THE FIRST COURSE OF BIOLOGIC OR JAK INHIBITOR IN RHEUMATOID ARTHRITIS: ASSOCIATION WITH THE CHOICE OF AGENT AND CONCOMITANT CONVENTIONAL SYNTHETIC DMARDS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:After failure of conventional synthetic disease modifying anti-rheumatic drugs (csDMARDs) in the therapy of rheumatoid arthritis (RA), treatment may be escalated to biologic (bDMARDs) or JAK inhibitors (JAKi) (1). Analysis of drug survival can provide useful information on the effectiveness of these therapeutic schemes.Objectives:to evaluate the association of the choice of therapeutic agent with the survival of treatment course in RA patients receiving their first bDMARD or JAKi.Methods:BiobadaBrasil is a multicentric registry-based cohort study of Brazilian patients starting their first bDMARD/JAKi (2). This analysis includes RA patients recruited from Jan 2009 to Oct 2019, followed-up over the first course of treatment with a bDMARD/JAKi until censoring (latest date, Nov 19, 2019) or occurrence of the outcome of interest. A treatment course is defined as a period during which the medication scheme does not change, except for dose adjustments. The primary outcome was the interruption of treatment course for any reason (except for pregnancy or disease remission); interruption of treatment due to adverse events (AEs) or death and due to inefficacy served as secondary outcomes. Multivariate Cox proportional hazards models were used for analyses.Results:In total, 1177 patients (3800 patient-years [PY]) were enrolled. The overall incidence of treatment interruption was 17.5/100 PY. Adalimumab was the most frequently prescribed agent, followed by infliximab (n= 267). The hazards ratios (HR) of the primary and secondary outcomes are presented in Table 1. Figure 1 compares the survival of treatment curves of different bDMARDs/JAKi.Table 1.Hazard ratios (HR) of interruption of therapy course of each therapeutic agent (the reference category for bDMARDs/ JAKi is infliximab). Results are HR, 95% CIs, and P values*.Agent (number of patients)Interruption for any reason (665 events)Interruption due to adverse events or death (196 events)Interruption due to inefficacy (319 events)Adalimumab (354)0.83 (0.68 to 1.01), P= 0.0620.68 (0.48 to 0.96), P=0.0291.08 (0.80 to 1.44), P=0.621Etanercept (257)0.81 (0.66 to 1.01), P=0.0630.56 (0.37 to 0.83), P=0.0040.93 (0.68 to 1.29), P=0.674Certolizumab (80)0.74 (0.47 to 1.16), P=0.1850.33 (0.13 to 0.86), P=0.0241.32 (0.74 to 2.35), P=0.350Golimumab (53)0.86 (0.53 to 1.38), P=0.5300.46 (0.18 to 1.19), P=0.1111.07 (0.53 to 2.15), P=0.849JAKi (tofacitinib) (59)0.54 (0.30 to 0.99), P=0.0470.19 (0.04 to 0.82), P=0.0260.89 (0.41 to 1.96), P=0.779Rituximab (48)0.87 (0.55 to 1.37), P=0.5400.48 (0.20 to 1.18), P=0.1090.58 (0.26 to 1.34), P=0.205Abatacept (30)0.52 (0.25 to 1.07), P=0.0770.46 (0.14 to 1.56), P=0.2150.46 (0.14 to 1.52), P=0.203Tocilizumab (29)0.29 (0.14 to 0.63), P=0.0020.40 (0.12 to 1.30), P=0.1260.28 (0.09 to 0.90), P=0.033Methotrexate (792)0.95 (0.79 to 1.14), P=0.5610.86 (0.62 to 1.19), P=0.3620.98 (0.75 to 1.28), P=0.860Leflunomide (497)1.17 (0.99 to 1.39), P=0.0611.44 (1.06 to 1.96), P=0.0201.02 (0.80 to 1.30), P=0.856Sulfasalazine (48)1.18 (0.80 to 1.75), P=0.4011.94 (1.07 to 3.54), P=0.0300.85 (0.45 to 1.59), P=0.605Antimalarials (230)0.80 (0.65 to 0.98), P=0.0270.67 (0.45 to 0.99), P=0.0430.67 (0.50 to 0.92), P=0.011* All tests adjusted for other variables presented in the table and for age, baseline DAS28, disease duration, gender, smoking, seropositivity (RF/anti-CCP), previous malignancy, diabetes, hypertension, hypercholesterolemia, renal failure, ischemic cardiomyopathy, COPD, heart failure, use of corticosteroids, starting year, hypercholesterolemia, osteoporosis, hepatitis B and C.Conclusion:In our study, infliximab was related to an overall higher hazard of treatment course interruption than tolicizumab and tofacitinib, and higher hazard of interruption due to AEs than most other anti-TNF agents and tofacitinib. Maintaining antimalarials in patients receiving advanced therapies for RA may reduce interruption of treatment due to inefficacy and AEs.Disclosure of Interests:None declared
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Fuggle NR, Singer A, Gill C, Patel A, Medeiros A, Mlotek AS, Pierroz DD, Halbout P, Harvey NC, Reginster JY, Cooper C, Greenspan SL. How has COVID-19 affected the treatment of osteoporosis? An IOF-NOF-ESCEO global survey. Osteoporos Int 2021; 32:611-617. [PMID: 33558957 PMCID: PMC7869913 DOI: 10.1007/s00198-020-05793-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/09/2020] [Indexed: 11/23/2022]
Abstract
The effects of COVID-19 have the potential to impact on the management of chronic diseases including osteoporosis. A global survey has demonstrated that these impacts include an increase in telemedicine consultations, delays in DXA scanning, interruptions in the supply of medications and reductions in parenteral medication delivery. INTRODUCTION The COVID-19 pandemic has had profound effects on the health of the global population both directly, via the sequelae of the infection, and indirectly, including the relative neglect of chronic disease management. Together the International Osteoporosis Foundation and National Osteoporosis Foundation sought to ascertain the impact on osteoporosis management. METHODS Questionnaires were electronically circulated to a sample of members of both learned bodies and included information regarding the location and specialty of respondents, current extent of face to face consultations, alterations in osteoporosis risk assessment, telemedicine experience, alterations to medication ascertainment and delivery and electronic health record (EHR) utilisation. Responses were collected, quantitative data analysed, and qualitative data assessed for recurring themes. RESULTS Responses were received from 209 healthcare workers from 53 countries, including 28% from Europe, 24% from North America, 19% from the Asia Pacific region, 17% from the Middle East and 12% from Latin America. Most respondents were physicians (85%) with physician assistants, physical therapists and nurses/nurse practitioners represented in the sample. The main three specialties represented included rheumatology (40%), endocrinology (22%) and orthopaedics (15%). In terms of the type of patient contact, 33% of respondents conducted telephone consultations and 21% video consultations. Bone mineral density assessment by dual-energy X-ray absorptiometry (DXA) usage was affected with only 29% able to obtain a scan as recommended. The majority of clinicians (60%) had systems in place to identify patients receiving parenteral medication, and 43% of clinicians reported difficulty in arranging appropriate osteoporosis medications during the COVID-19 crisis. CONCLUSIONS To conclude through surveying a global sample of osteoporosis healthcare professionals, we have observed an increase in telemedicine consultations, delays in DXA scanning, interrupted supply of medications and reductions in parenteral medication delivery.
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Affiliation(s)
- N R Fuggle
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- Alan Turing Institute, London, UK
| | - A Singer
- Departments of Medicine and Obstetrics and Gynecology, MedStar Georgetown University Hospital, Georgetown University Medical Center, Washington, DC, USA
| | - C Gill
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A Patel
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A Medeiros
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A S Mlotek
- International Osteoporosis Foundation, Nyon, Switzerland
| | - D D Pierroz
- International Osteoporosis Foundation, Nyon, Switzerland
| | - P Halbout
- International Osteoporosis Foundation, Nyon, Switzerland
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - J-Y Reginster
- WHO Collaborating Center for Public Health Aspects of Musculo-Skeletal Health and Ageing, University of Liège, Liege, Belgium
- Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK.
| | - S L Greenspan
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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Fuggle NR, Singer A, Gill C, Patel A, Medeiros A, Mlotek AS, Pierroz DD, Halbout P, Harvey NC, Reginster JY, Cooper C, Greenspan SL. Correction to: How has COVID-19 affected the treatment of osteoporosis? An IOF-NOF-ESCEO global survey. Osteoporos Int 2021; 32:801. [PMID: 33751152 PMCID: PMC7942214 DOI: 10.1007/s00198-021-05905-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
A Correction to this paper has been published: 10.1007/s00198-021-05905-7
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Affiliation(s)
- N R Fuggle
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- Alan Turing Institute, London, UK
| | - A Singer
- Departments of Medicine and Obstetrics and Gynecology, MedStar Georgetown University Hospital, Georgetown University Medical Center, Washington, DC, USA
| | - C Gill
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A Patel
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A Medeiros
- National Osteoporosis Foundation, Arlington, VA, USA
| | - A S Mlotek
- International Osteoporosis Foundation, Nyon, Switzerland
| | - D D Pierroz
- International Osteoporosis Foundation, Nyon, Switzerland
| | - P Halbout
- International Osteoporosis Foundation, Nyon, Switzerland
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - J-Y Reginster
- WHO Collaborating Center for Public Health Aspects of Musculo-Skeletal Health and Ageing, University of Liège, Liege, Belgium
- Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK.
| | - S L Greenspan
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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9
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Ruberti OM, Sousa AS, Viana LR, Pereira Gomes MF, Medeiros A, Gomes Marcondes MCC, Borges LDF, Crestani CC, Mostarda C, Moraes TFDC, Canevarolo RR, Delbin MA, Rodrigues B. Aerobic training prevents cardiometabolic changes triggered by myocardial infarction in ovariectomized rats. J Cell Physiol 2020; 236:1105-1115. [PMID: 32638399 DOI: 10.1002/jcp.29919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 11/10/2022]
Abstract
This study aimed to evaluate the impact of aerobic training (AT) on autonomic, cardiometabolic, ubiquitin-proteasome activity, and inflammatory changes evoked by myocardial infarction (MI) in ovariectomized rats. Female Wistar rats were ovariectomized and divided into four groups: sedentary + sham (SS), sedentary + MI (SI), AT + sham surgery (TS), AT + MI (TI). AT was performed on a treadmill for 8 weeks before MI. Infarcted rats previously subjected to AT presented improved physical capacity, increased interleukin-10, and decreased pro-inflammatory cytokines. Metabolomic analysis identified and quantified 62 metabolites, 9 were considered significant by the Vip Score. SS, SI, and TS groups presented distinct metabolic profiles; however, TI could not be distinguished from the SS group. MI dramatically increased levels of dimethylamine, and AT prevented this response. Our findings suggest that AT may be useful in preventing the negative changes in functional, inflammatory, and metabolic parameters related to MI in ovariectomized rats.
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Affiliation(s)
- Olívia Moraes Ruberti
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Andressa Silva Sousa
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Laís Rosa Viana
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - Alessandra Medeiros
- Department of Bioscience, Federal University of São Paulo (UNIFESP), Santos, SP, Brazil
| | | | | | - Carlos Cesar Crestani
- Laboratory of Pharmacology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Cristiano Mostarda
- Department of Physical Education, Federal University of Maranhão (UFMA), São Luís, MA, Brazil
| | | | | | - Maria Andreia Delbin
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Bruno Rodrigues
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Department of Adapted Physical Activity, School of Physical Education, University of Campinas (UNICAMP), Campinas, SP, Brazil
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10
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Casagrande BP, de Souza DV, Ribeiro DA, Medeiros A, Pisani LP, Estadella D. Hepatic inflammation precedes steatosis and is mediated by visceral fat accumulation. J Endocrinol 2020; 245:369-380. [PMID: 32217808 DOI: 10.1530/joe-20-0073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/25/2020] [Indexed: 11/08/2022]
Abstract
The negative aspects of unhealthy eating on obesity and hepatic health are well described. The axis between the adipose tissue and the liver participates in most of the damage caused to this tissue regarding obesogenic diets (OD). At the same time that the effects of consuming simple carbohydrates and saturated fatty acids are known, the effects of the cessation of its intake are scarce. Withdrawing from OD is thought to improve health; despite some studies had shown improvement in hepatic conditions in the long-term, short-term studies were not found. Therefore, we aimed to determine how OD intake and withdrawal would influence visceral and hepatic fat accumulation and inflammation. To this end, male 60-days-old Wistar rats received standard chow (n = 16) or a high-sugar/high-fat diet (HSHF) for 30 days (n = 32), a cohort of the HSHF-fed animals was then kept 48 h on standard chow (n = 16). In opposition to the generally reported, the results indicate that hepatic inflammation preceded hepatic steatosis. Additionally, inflammatory markers on the liver positively correlated visceral adipokines and visceral fat accumulation mediated them in a deposit-dependent manner. At the same time, a 48-h withdrawal was capable of reverting most of the risen inflammatory mediators, although MyD88 and TNFα persisted and serum non-HDL cholesterol was higher than control levels.
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Affiliation(s)
- Breno Picin Casagrande
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Daniel Vitor de Souza
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Daniel Araki Ribeiro
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Alessandra Medeiros
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Luciana Pellegrini Pisani
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
| | - Debora Estadella
- Biosciences Department, Institute of Health and Society, Federal University of São Paulo, Santos, São Paulo, Brazil
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11
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Matos Fraga V, Tanil Montrezol F, Tavares Martins D, Medeiros A. Effect of water exercise in blood pressure and sleep quality of hypertensive adults. J Sports Med Phys Fitness 2020; 60:1291-1296. [PMID: 32432447 DOI: 10.23736/s0022-4707.20.10638-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Together with ageing there is an increase in blood pressure levels. However, physical activity is one of the most recommended strategies for preventing the increase of blood pressure. Water exercise involves numerous advantages, one of which is the comfort proportioned by water temperature. The aim of this study was to evaluate the effects of a water exercise program on blood pressure, physical fitness, quality of sleep and the likelihood of having sleep apnea (SA) in hypertensive adults. METHODS We evaluated 21 sedentary hypertensive subjects of both sexes. The water exercise was conducted over 13 weeks, three times/week, 50 min/day. Resting blood pressure, height, body weight, waist and hip circumference, functional capability, as well as sleep quality and the likelihood of having sleep apnea were evaluated before and after the experimental period. RESULTS There was a significant decrease in systolic and mean blood pressure. Significant increases in strength, muscular and aerobic endurance, coordination, agility, dynamic balance and flexibility were also seen. In addition, a reduction in the likelihood of sleep apnea was identified, despite a deterioration in sleep quality. CONCLUSIONS Water exercise was effective in reducing systolic blood pressure, in improving functional capacity variables, and in reducing probability of sleep apnea in hypertensive subjects, however it promoted worsening of sleep quality.
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Affiliation(s)
- Vanessa Matos Fraga
- Department of Biosciences, Federal University of São Paulo, São Paulo, Brazil
| | | | | | - Alessandra Medeiros
- Department of Biosciences, Federal University of São Paulo, São Paulo, Brazil -
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12
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Souza PRMD, da Palma RK, Vieira RP, Santos FD, Monteiro-De-Moraes WMA, Medeiros A, Koike MK, Arantes-Costa FM, De Angelis K, Irigoyen MC, Consolim Colombo FM. Early activation of ubiquitin-proteasome system at the diaphragm tissue occurs independently of left ventricular dysfunction in SHR rats. Exp Biol Med (Maywood) 2020; 245:245-253. [PMID: 31986909 DOI: 10.1177/1535370219897883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hypertensive status induces modifications in the respiratory profile. Previous studies have indicated that hypertensive rats show increased respiratory-sympathetic coupling compared to normotensive rats. However, these effects and especially the mechanisms underlying such effects are not well known. Thus, we evaluated the influence of high blood pressure and autonomic dysfunction on a ventilatory pattern associated with lung injury and on the ubiquitin-proteasome system of the diaphragm muscle. Autonomic cardiovascular modulation (systolic BP variance and low-frequency band and pulse interval variance) and arterial blood gases patterns (pH, pO2, HCO3, SpO2), can be changed by hypertension, as well exacerbated chemoreflex pressor response. We observed that the diaphragm muscle of SHR showed increase in type I cross-sectional fiber (16%) and reduction in type II cross-sectional fiber area (41%), increased activity of the ubiquitin-proteasome system and lipid peroxidation, with no differences between groups in the analysis of ubiquitinated proteins and misfolded proteins. Our results showed that hypertension induced functional compensatory/adverse alterations associated with diaphragm fiber type changes and protein degradation as well as changed autonomic control of circulation. In conclusion, we believe there is an adaptation in ventilatory pattern in regarding to prevent the development of fatigue and muscle weakness and improve ventilatory endurance. Impact statement It was well known that hypertension can be driven by increased sympathetic activity and has been documented as a central link between autonomic dysfunction and alterations in the respiratory pattern. Our study demonstrated the impact of hypertension in ventilatory mechanics and their relationship with diaphragm muscle protein degradation. These findings may assist us in future alternative treatments to prevent diaphragm fatigue and weakness in hypertensive patients.
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Affiliation(s)
- Pamella Ramona Moraes de Souza
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of São Paulo (FMUSP), Avenida Dr Eneas de Carvalho Aguiar 44, São Paulo/SP, Brazil 05403-000.,Department of Post-graduation in Medicine, Nove de Julho University (UNINOVE), Rua Vergueiro 235/249, São Paulo/SP, Brazil 01504-001
| | - Renata Kelly da Palma
- Department of Post-graduation in Medicine, Nove de Julho University (UNINOVE), Rua Vergueiro 235/249, São Paulo/SP, Brazil 01504-001.,Institute for Bioengineering of Catalonia, Biomimetic systems for cell engineering. Barcelona, Spain (IBEC). C. Baldiri Reixac, 15-21 Barcelona. 08028
| | - Rodolfo Paula Vieira
- Department of Post-graduation in Medicine, Nove de Julho University (UNINOVE), Rua Vergueiro 235/249, São Paulo/SP, Brazil 01504-001.,Institute for Bioengineering of Catalonia, Biomimetic systems for cell engineering. Barcelona, Spain (IBEC). C. Baldiri Reixac, 15-21 Barcelona. 08028
| | - Fernando Dos Santos
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of São Paulo (FMUSP), Avenida Dr Eneas de Carvalho Aguiar 44, São Paulo/SP, Brazil 05403-000
| | - Wilson Max Almeida Monteiro-De-Moraes
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of São Paulo (FMUSP), Avenida Dr Eneas de Carvalho Aguiar 44, São Paulo/SP, Brazil 05403-000
| | | | - Marcia Kiyomi Koike
- Department of Medicine, Center of Development of Medical Education, CEDEM, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Fernanda Magalhães Arantes-Costa
- Department of Medicine, Center of Development of Medical Education, CEDEM, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Kátia De Angelis
- Federal University of Sao Paulo.Rua Pedro de Toledo, 1800. São Paulo/SP, Brazil 04021-001
| | - Maria Claudia Irigoyen
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of São Paulo (FMUSP), Avenida Dr Eneas de Carvalho Aguiar 44, São Paulo/SP, Brazil 05403-000
| | - Fernanda Marciano Consolim Colombo
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of São Paulo (FMUSP), Avenida Dr Eneas de Carvalho Aguiar 44, São Paulo/SP, Brazil 05403-000.,Department of Post-graduation in Medicine, Nove de Julho University (UNINOVE), Rua Vergueiro 235/249, São Paulo/SP, Brazil 01504-001
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13
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Montrezol FT, Marinho R, Mota GDFD, D'almeida V, de Oliveira EM, Gomes RJ, Medeiros A. ACE Gene Plays a Key Role in Reducing Blood Pressure in The Hyperintensive Elderly After Resistance Training. J Strength Cond Res 2019; 33:1119-1129. [DOI: 10.1519/jsc.0000000000002355] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Casagrande BP, Gomes MFP, Moura EOC, Santos ACC, Kubota MC, Ribeiro DA, Pisani LP, Medeiros A, Estadella D. Age-dependent hepatic alterations induced by a high-fat high-fructose diet. Inflamm Res 2019; 68:359-368. [PMID: 30874869 DOI: 10.1007/s00011-019-01223-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The present study aimed to evaluate and clarify how the age at which the intake of a high-fat and high-fructose diet begins can affect animals' livers. METHODS Thirty-eight male wistar rats aged 6 and 12 weeks were fed a high-fat and high-fructose diet for 13 weeks. Inflammatory cytokines, hepatic glycogen, serum and hepatic triacylglycerol and pAkt protein content in the liver were assessed. Percentage of weight gained, and visceral adiposity were also evaluated. RESULTS Young animal presented increased hepatic triacylglycerol and decreased glycogen, while adult animals had no significant alterations regarding its contents. IL6 and IL10 to IL6 ratio were also altered in young animals exposed to HFHF, while adult animals fed with HFHF had only increases in TNF-α. Both groups which received HFHF had increased serum triacylglycerol and visceral adiposity. However, only young animals gained more relative weight and had greater final body weight, gains which were related to alterations found in hepatic triacylglycerol and glycogen. CONCLUSION Age of which consumption begins interferes in how the liver deals with an excess of nutrient and subsequent proinflammatory stimulation, leading to different phenotypes.
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Affiliation(s)
- B P Casagrande
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - M F P Gomes
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - E O C Moura
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - A C C Santos
- Instituto de Saúde e Sociedade, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - M C Kubota
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - D A Ribeiro
- Departamento de Biociências, Instituto de Saúde e Sociedade, Federal University of São Paulo (UNIFESP), 11015-020, Santos, SP, Brazil
| | - L P Pisani
- Departamento de Biociências, Instituto de Saúde e Sociedade, Federal University of São Paulo (UNIFESP), 11015-020, Santos, SP, Brazil
| | - A Medeiros
- Departamento de Biociências, Instituto de Saúde e Sociedade, Federal University of São Paulo (UNIFESP), 11015-020, Santos, SP, Brazil
| | - D Estadella
- Departamento de Biociências, Instituto de Saúde e Sociedade, Federal University of São Paulo (UNIFESP), 11015-020, Santos, SP, Brazil.
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15
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Pimenta FC, Montrezol FT, Dourado VZ, da Silva LFM, Borba GA, de Oliveira Vieira W, Medeiros A. High-intensity interval exercise promotes post-exercise hypotension of greater magnitude compared to moderate-intensity continuous exercise. Eur J Appl Physiol 2019; 119:1235-1243. [PMID: 30848358 DOI: 10.1007/s00421-019-04114-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 02/26/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Physical exercise is associated with reduced blood pressure (BP). Moderate-intensity continuous exercise (MCE) promotes post-exercise hypotension (PEH), which is highly recommended to hypertensive patients. However, recent studies with high-intensity interval exercise (HIIE) have shown significant results in cardiovascular disease. Thus, this study aimed to analyze PEH in hypertensive subjects submitted to HIIE and compare it to post MCE hypotension. METHODS 20 hypertensive adults (51 ± 8 years), treated with antihypertensive medications, were submitted to two different exercise protocols and a control session. The MCE was performed at 60-70% of VO2 reserve, while HIIE was composed of five bouts of 3 min at 85-95% VO2 reserve with 2 min at 50% of VO2 reserve. The following variables were evaluated during exercise, pre- and post-session: clinical BP, heart rate (HR), double product, perception of effort, body mass, height and body mass index. RESULTS Systolic BP decreased after exercise in both sessions, showing greater decrease after HIIE (- 7 ± 10 and - 11 ± 12 mmHg, after MCE and HIIE, respectively, p ≤ 0.01). Diastolic BP also decreased after both sessions, but there were no significant differences between the two sessions (- 4 ± 8 and - 7 ± 8 mmHg, after MCE and HIIE, respectively). CONCLUSION Both exercise sessions produced PEH, but HIIE generated a greater magnitude of hypotension. The HIIE protocol performed in this study caused a greater cardiovascular stress during exercise; however, it was safe for the studied population and efficient for reducing BP after exercise.
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Affiliation(s)
- Flávia C Pimenta
- Department of Biosciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, SP, 11015-020, Brazil
| | - Fábio Tanil Montrezol
- Department of Biosciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, SP, 11015-020, Brazil
| | - Victor Zuniga Dourado
- Department of Human Movement Sciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, 11015-020, Brazil
| | | | - Gabriela Alves Borba
- Department of Biosciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, SP, 11015-020, Brazil
| | - Wesley de Oliveira Vieira
- Department of Human Movement Sciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, 11015-020, Brazil
| | - Alessandra Medeiros
- Department of Biosciences, Federal University of São Paulo, Rua Silva Jardim, 136, Santos, SP, 11015-020, Brazil.
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16
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Blanco Rodríguez P, Lozano JC, Vera Tomé F, Prieto C, Medeiros A. Influence of soil conditions on the distribution coefficients of 226Ra in natural soils. Chemosphere 2018; 205:188-193. [PMID: 29698829 DOI: 10.1016/j.chemosphere.2018.04.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/20/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
In order to clarify some of the assumptions and approximations about the use of the distribution coefficient Kd for 226Ra in soils, a systematic study has been performed using centrifugation to extract the soil solution. The separated fractions of the soil solution have different kinetics with respect to the sorption process in the soil, which may in turn condition the final chemical composition and even the speciation of the radionuclides in solution. In the experimental design of this study three factors were considered: the moisture level in the incubation process, incubation time and the speed of centrifugation. Also, three levels were chosen for each factor. In order to analyze the influence of the structural characteristics of the soil, this study was performed with three textural fractions: coarse sand, fine sand, and silt and clay, obtained from an only soil. Also, the soil was naturally enriched with radionuclides of the 238U series. An analysis of variance (ANOVA) was performed in order to assess the influence of the factors studied on the distribution coefficient of 226Ra. The results indicate that different behaviors can be observed depending on the structural characteristic of the soil. In the case of particle size, the soil with the largest grain size showed that the incubation process parameters influence the equilibrium level achieved, while in the case of the smallest edaphic particles, radium is not homogeneously distributed in the soil solution and the Kd value is dependent on the speed of centrifugation.
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Affiliation(s)
- P Blanco Rodríguez
- Natural Radioactivity Group, University of Extremadura, 06071 Badajoz, Spain.
| | - J C Lozano
- Laboratory of Ionizing Radiations, University of Salamanca, 37008 Salamanca, Spain
| | - F Vera Tomé
- Natural Radioactivity Group, University of Extremadura, 06071 Badajoz, Spain
| | - C Prieto
- Laboratory of Ionizing Radiations, University of Salamanca, 37008 Salamanca, Spain
| | - A Medeiros
- CAPES Foundation, Ministry of Education, Brazil
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17
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Graça R, Abrantes L, Rossi N, Alves A, Medeiros A, Zimon M, Rausch T, Benes V, Pepperkok R, Bourbon M. The importance to track variants in a genes causing recessive disorders within the family: A FH/Sitosterolemia clinical case. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Graça R, Rossi N, Alves A, Medeiros A, Zimon M, Raush T, Benes V, Pepperkok R, Bourbon M. Improving familial dyslipidaemia diagnosis. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Moura EDOCD, Tanaka K, Gomes MFP, Nogueira E, Gomes R, Estadella D, Mattos K, Brum PC, Medeiros A. Comparison betweent the Effects of Swimming and Treadmill-Based Aerobic Training Protocols in Diabetic Rats. International Journal of Cardiovascular Sciences 2018. [DOI: 10.5935/2359-4802.20180058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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20
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De Moraes WMAM, de Souza PRM, da Paixão NA, de Sousa LGO, Ribeiro DA, Marshall AG, Prestes J, Irigoyen MC, Brum PC, Medeiros A. Aerobic exercise training rescues protein quality control disruption on white skeletal muscle induced by chronic kidney disease in rats. J Cell Mol Med 2017; 22:1452-1463. [PMID: 29265674 PMCID: PMC5824409 DOI: 10.1111/jcmm.13374] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 08/08/2017] [Indexed: 02/06/2023] Open
Abstract
We tested whether aerobic exercise training (AET) would modulate the skeletal muscle protein quality control (PQC) in a model of chronic kidney disease (CKD) in rats. Adult Wistar rats were evaluated in four groups: control (CS) or trained (CE), and 5/6 nephrectomy sedentary (5/6NxS) or trained (5/6NxE). Exercised rats were submitted to treadmill exercise (60 min., five times/wk for 2 months). We evaluated motor performance (tolerance to exercise on the treadmill and rotarod), cross-sectional area (CSA), gene and protein levels related to the unfolded protein response (UPR), protein synthesis/survive and apoptosis signalling, accumulated misfolded proteins, chymotrypsin-like proteasome activity (UPS activity), redox balance and heat-shock protein (HSP) levels in the tibialis anterior. 5/6NxS presented a trend towards to atrophy, with a reduction in motor performance, down-regulation of protein synthesis and up-regulation of apoptosis signalling; increases in UPS activity, misfolded proteins, GRP78, derlin, HSP27 and HSP70 protein levels, ATF4 and GRP78 genes; and increase in oxidative damage compared to CS group. In 5/6NxE, we observed a restoration in exercise tolerance, accumulated misfolded proteins, UPS activity, protein synthesis/apoptosis signalling, derlin, HSPs protein levels as well as increase in ATF4, GRP78 genes and ATF6α protein levels accompanied by a decrease in oxidative damage and increased catalase and glutathione peroxidase activities. The results suggest a disruption of PQC in white muscle fibres of CKD rats previous to the atrophy. AET can rescue this disruption for the UPR, prevent accumulated misfolded proteins and reduce oxidative damage, HSPs protein levels and exercise tolerance.
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Affiliation(s)
- Wilson Max Almeida Monteiro De Moraes
- Biosciences Department, Federal University of Sao Paulo, Santos, Brazil.,Post-Graduation Program on Physical Education, Catholic University of Brasilia (UCB), Brasilia, Federal District, Brazil
| | | | | | | | | | - Andrea G Marshall
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA, USA
| | - Jonato Prestes
- Post-Graduation Program on Physical Education, Catholic University of Brasilia (UCB), Brasilia, Federal District, Brazil
| | - Maria Claudia Irigoyen
- Hypertension Unit, Heart Institute, University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Patricia Chakur Brum
- Department of Post-graduation in Medicine, Nove de Julho University (UNINOVE), Sao Paulo, Brazil
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21
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Gomes MFP, Borges ME, Rossi VDA, Moura EDOCD, Medeiros A. The Effect of Physical Resistance Training on Baroreflex Sensitivity of Hypertensive Rats. Arq Bras Cardiol 2017; 108:539-545. [PMID: 28562833 PMCID: PMC5489324 DOI: 10.5935/abc.20170065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 01/24/2017] [Indexed: 12/16/2022] Open
Abstract
Background: Baroreceptors act as regulators of blood pressure (BP); however, its
sensitivity is impaired in hypertensive patients. Among the recommendations
for BP reduction, exercise training has become an important adjuvant therapy
in this population. However, there are many doubts about the effects of
resistance exercise training in this population. Objective: To evaluate the effect of resistance exercise training on BP and baroreceptor
sensitivity in spontaneously hypertensive rats (SHR). Method: Rats SHR (n = 16) and Wistar (n = 16) at 8 weeks of age, at the beginning of
the experiment, were randomly divided into 4 groups: sedentary control (CS,
n = 8); trained control (CT, n = 8); sedentary SHR (HS, n = 8) and trained
SHR (HT, n = 8). Resistance exercise training was performed in a
stairmaster-type equipment (1.1 × 0.18 m, 2 cm between the steps, 80°
incline) with weights attached to their tails, (5 days/week, 8 weeks).
Baroreceptor reflex control of heart rate (HR) was tested by
loading/unloading of baroreceptors with phenylephrine and sodium
nitroprusside. Results: Resistance exercise training increased the soleus muscle mass in SHR when
compared to HS (HS 0.027 ± 0.002 g/mm and HT 0.056 ± 0.003
g/mm). Resistance exercise training did not alter BP. On the other hand, in
relation to baroreflex sensitivity, bradycardic response was improved in the
TH group when compared to HS (HS -1.3 ± 0.1 bpm/mmHg and HT -2.6
± 0.2 bpm/mmHg) although tachycardia response was not altered by
resistance exercise (CS -3.3 ± 0.2 bpm/mmHg, CT -3.3 ± 0.1
bpm/mmHg, HS -1.47 ± 0.06 bpm/mmHg and HT -1.6 ± 0.1
bpm/mmHg). Conclusion: Resistance exercise training was able to promote improvements on baroreflex
sensitivity of SHR rats, through the improvement of bradycardic response,
despite not having reduced BP.
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22
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Borges ME, Ribeiro AM, Pauli JR, Arantes LM, Luciano E, de Moura LP, de Almeida Leme JAC, Medeiros A, Bertolini NO, Sibuya CY, Gomes RJ. Cerebellar Insulin/IGF-1 signaling in diabetic rats: Effects of exercise training. Neurosci Lett 2017; 639:157-161. [PMID: 28034783 DOI: 10.1016/j.neulet.2016.12.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 12/23/2016] [Indexed: 12/20/2022]
Abstract
The Diabetes Mellitus (DM) is a chronic disease associated with loss of brain regions such as the cerebellum, increasing the risk of developing neurodegenerative diseases such as Parkinson's disease (PD). In the brain of diabetic and PD organisms the insulin/IGF-1 signaling is altered. Exercise training is an effective intervention for the prevention of neurodegerative diseases since it release neurotrophic factors and regulating insulin/IGF-1 signaling in the brain. This study aimed to evaluate the proteins involved in the insulin/IGF-1 pathway in the cerebellum of diabetic rats subjected to exercise training protocol. Wistar rats were distributed in four groups: sedentary control (SC), trained control (TC), sedentary diabetic (SD) and trained diabetic (TD). Diabetes was induced by Alloxan (ALX) (32mg/kgb.w.). The training program consisted in swimming 5days/week, 1h/day, during 6 weeks, supporting an overload corresponding to 90% of the anaerobic threshold. At the end, cerebellum was extracted to determinate the protein expression of GSK-3β, IRβ and IGF-1R and the phosphorylation of β-amyloid, Tau, ERK1+ERK2 by Western Blot analysis. All dependent variables were analyzed by one-way analysis of variance with significance level of 5%. Diabetes causes hyperglycemia in both diabetic groups; however, in TD, there was a reduction in hyperglycemia compared to SD. Diabetes increased Tau and β-amyloid phosphorylation in both SD and TD groups. Furthermore, aerobic exercise increased ERK1+ERK2 expression in TC. The data showed that in cerebellum of diabetic rats induced by alloxan there are some proteins expression like Parkinson cerebellum increased, and the exercise training was not able to modulate the expression of these proteins.
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Affiliation(s)
- Mariana Eiras Borges
- Department of Biosciences, São Paulo Federal University (UNIFESP), Santos, São Paulo, Brazil
| | | | - José Rodrigo Pauli
- Sport Science Course, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil
| | - Luciana Mendonça Arantes
- Departament of Physical Education, University Center of Patos de Minas, Patos de Minas, Minas Gerais, Brazil, Brazil
| | - Eliete Luciano
- Department of Physical Education, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | | | | | - Alessandra Medeiros
- Department of Biosciences, São Paulo Federal University (UNIFESP), Santos, São Paulo, Brazil
| | | | - Clarice Yoshiko Sibuya
- Department of Physical Education, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Ricardo José Gomes
- Department of Biosciences, São Paulo Federal University (UNIFESP), Santos, São Paulo, Brazil.
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23
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Cerrone LA, Poli VFS, Sanches RB, Andrade-Silva SG, Fidalgo JPN, Nascimento MA, Moraes AS, Medeiros A, Gomes RJ, Caranti DA. Interdisciplinary Therapy and Decrease of Cardiovascular Overload in Obese
Patients. International Journal of Cardiovascular Sciences 2017. [DOI: 10.5935/2359-4802.20170039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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24
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Botelho R, Guerra RLF, D’Almeida V, Medeiros A. Program of combined physical exercise reduces the perception of pain in a patient
with sickle cell anemia. Case report. Revista Dor 2017. [DOI: 10.5935/1806-0013.20170114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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25
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de Salvi Guimarães F, de Moraes WMAM, Bozi LHM, Souza PR, Antonio EL, Bocalini DS, Tucci PJF, Ribeiro DA, Brum PC, Medeiros A. Dexamethasone-induced cardiac deterioration is associated with both calcium handling abnormalities and calcineurin signaling pathway activation. Mol Cell Biochem 2016; 424:87-98. [DOI: 10.1007/s11010-016-2846-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 10/08/2016] [Indexed: 02/07/2023]
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26
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Jamar G, Pisani LP, Medeiros A, Oyama LM, Masquio DCL, Colantonio E, Garcia S, Sanches RB, dos Santos Moraes A, Belote C, Caranti DA. Effect of Fat Intake on the Inflammatory Process and Cardiometabolic Risk in Obesity After Interdisciplinary Therapy. Horm Metab Res 2016; 48:106-11. [PMID: 26372897 DOI: 10.1055/s-0035-1548871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Changes in diet and eating behavior along with excessive consumption of sugar or fat and a sedentary lifestyle are related to increased obesity and its associated comorbidities. The aim of this study was to investigate the role of the type of macronutrients on specific health benefits associated with the weight loss in treating obesity. A total of 30 obese women (34.89±3.04 kg/m(2) and 43.3±5.34 years) participated in an interdisciplinary therapy approach to lifestyle change, which consisted of nutritional counseling, exercise, and psychological therapy for over a period of 26 weeks. The profile was obtained by anthropometric measurements and body composition by bioelectrical impedance analysis (BIA). Usual food intake was assessed with 3-day food record diaries and blood tests were used to determine metabolic and adipokines parameters. After therapy, there was significant reduction in all anthropometric and body composition variables. Food consumption also decreased while still providing adequate nutrient intake. There was significant improvement in LDL-cholesterol, PAI-1, leptin, CRP, ICAM-1, and VCAM-1. Lower dietary carbohydrate and fat intake led to weight loss. The effect of lower carbohydrate intake on weight loss is related to changes in body composition and leptin levels. Weight loss by reducing fat intake modified the inflammatory process and cardiovascular risk, indicating dietary fat as an independent predictor factor of cell adhesion molecules. Therefore, decreasing dietary fat consumption had greater impact on the inflammatory process on obese individuals. Our results show that the type of macronutrient influences the health benefits associated with weight loss.
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Affiliation(s)
- G Jamar
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - L P Pisani
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - A Medeiros
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - L M Oyama
- Post Graduate Program of Nutrition, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - D C L Masquio
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - E Colantonio
- Obesity Study Group (GEO), Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - S Garcia
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - R B Sanches
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - A dos Santos Moraes
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - C Belote
- Obesity Study Group (GEO), Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
| | - D A Caranti
- Post Graduate Program of Interdisciplinary Health Sciences, Federal University of São Paulo - UNIFESP - Santos, São Paulo, Brazil
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Souza PR, Vieira RP, Flues K, De-Moraes WM, Ferreira JB, Medeiros A, De Angelis K, Consolim-Colombo FM, Irigoyen MC. Abstract P055: Systemic Arterial Hypertension Induces Pulmonary Injury Beyond Protein Degradation and Atrophy of Diaphragm. Hypertension 2015. [DOI: 10.1161/hyp.66.suppl_1.p055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Systemic arterial hypertension (SAH) is a chronic disease associated with systemic inflammation. Although cardiovascular adaptations resulting from SAH are more evident, little is known about the respiratory alterations. The purinergic receptor P2X7 plays a key role in the immune modulation, beyond to control the vascular tone and the development of inflammation and fibrosis.
Aims:
Evaluate the effects of SAH on the pulmonary inflammation and remodeling and on the diaphragm, and the involvement of purinergic receptor P2X7 and of ubiquitin-proteasome system (UPS) in this response.
Methods:
Spontaneously hypertensive rats (SHR) and normotensive Wistar (N) with 18 weeks-of-age were evaluated for: inflammation and remodeling of airways and pulmonary vessels and for P2X7 receptor expression. The morphology and biochemistryin diaphragm muscle for myosin ATPase reaction and ubiquitin-proteasome system (UPS), respectively.
Results:
The SHR showed a higher wall/lumen of the pulmonary arteries, as well as increased collagen deposition on the wall of these arteries. Increase in P2X7 receptor expression in pulmonary vascular wall (SHR:4.3%±0.7% vs. N:0.3%±0.2%) and bronchial epithelial (SHR:29±0% vs 2.8% N:10.5%±1.3%). The diaphragm was increased cross-sectional area (CSA) of type I fibers (16%) and reduction in CSA of type II (41%), increased the UPS activity and lipid peroxidation. SHR did not change in the analysis of ubiquitinated proteins and misfolded proteins.
Conclusion:
SAH induces important pulmonary disorders such pulmonary vascular remodeling, with increased expression of the purinergic receptor P2X7 associated with atrophy and protein degradation on diaphragm.
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Affiliation(s)
| | | | - Karin Flues
- Experimental Hypertension Laboratory - Heart Institute, São Paulo, Brazil
| | | | - Janaína B Ferreira
- Experimental Hypertension Laboratory - Heart Institute, São Paulo, Brazil
| | | | | | | | - Maria C Irigoyen
- Experimental Hypertension Laboratory - Heart Institute, São Paulo, Brazil
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28
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Mônico-Neto M, Antunes HKM, Lee KS, Phillips SM, Giampá SQDC, Souza HDS, Dáttilo M, Medeiros A, de Moraes WM, Tufik S, de Mello MT. Resistance training minimizes catabolic effects induced by sleep deprivation in rats. Appl Physiol Nutr Metab 2015; 40:1143-50. [PMID: 26513007 DOI: 10.1139/apnm-2015-0061] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Sleep deprivation (SD) can induce muscle atrophy. We aimed to investigate the changes underpinning SD-induced muscle atrophy and the impact of this condition on rats that were previously submitted to resistance training (RT). Adult male Wistar EPM-1 rats were randomly allocated into 1 of 5 groups: control, sham, SD (for 96 h), RT, and RT+SD. The major outcomes of this study were muscle fiber cross-sectional area (CSA), anabolic and catabolic hormone profiles, and the abundance of select proteins involved in muscle protein synthesis and degradation pathways. SD resulted in muscle atrophy; however, when SD was combined with RT, the reduction in muscle fiber CSA was attenuated. The levels of IGF-1 and testosterone were reduced in SD animals, and the RT+SD group had higher levels of these hormones than the SD group. Corticosterone was increased in the SD group compared with the control group, and this increase was minimized in the RT+SD group. The increases in corticosterone concentrations paralleled changes in the abundance of ubiquitinated proteins and the autophagic proteins LC3 and p62/SQSTM1, suggesting that corticosterone may trigger these changes. SD induced weight loss, but this loss was minimized in the RT+SD group. We conclude that SD induced muscle atrophy, probably because of the increased corticosterone and catabolic signal. High-intensity RT performed before SD was beneficial in containing muscle loss induced by SD. It also minimized the catabolic signal and increased synthetic activity, thereby minimizing the body's weight loss.
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Affiliation(s)
- Marcos Mônico-Neto
- a Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.,b Laboratório Interdisciplinar em Fisiologia e Exercício, São Paulo, Brazil
| | - Hanna Karen Moreira Antunes
- b Laboratório Interdisciplinar em Fisiologia e Exercício, São Paulo, Brazil.,c Department of Biosciences, Universidade Federal de São Paulo, Santos, Brazil
| | - Kil Sun Lee
- d Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Stuart M Phillips
- e Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Sara Quaglia de Campos Giampá
- b Laboratório Interdisciplinar em Fisiologia e Exercício, São Paulo, Brazil.,c Department of Biosciences, Universidade Federal de São Paulo, Santos, Brazil
| | - Helton de Sá Souza
- a Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.,b Laboratório Interdisciplinar em Fisiologia e Exercício, São Paulo, Brazil
| | - Murilo Dáttilo
- a Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.,b Laboratório Interdisciplinar em Fisiologia e Exercício, São Paulo, Brazil
| | - Alessandra Medeiros
- c Department of Biosciences, Universidade Federal de São Paulo, Santos, Brazil
| | | | - Sergio Tufik
- a Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marco Túlio de Mello
- a Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.,f School of Physical Education, Physiotherapy and Occupational Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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29
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Braga VAVN, Couto GK, Lazzarin MC, Rossoni LV, Medeiros A. Aerobic Exercise Training Prevents the Onset of Endothelial Dysfunction via Increased Nitric Oxide Bioavailability and Reduced Reactive Oxygen Species in an Experimental Model of Menopause. PLoS One 2015; 10:e0125388. [PMID: 25923465 PMCID: PMC4414603 DOI: 10.1371/journal.pone.0125388] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 03/24/2015] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Previous studies have shown that estrogen deficiency, arising in postmenopause, promotes endothelial dysfunction. This study evaluated the effects of aerobic exercise training on endothelial dependent vasodilation of aorta in ovariectomized rats, specifically investigating the role of nitric oxide (NO) and reactive oxygen species (ROS). METHODS Female Wistar rats ovariectomized (OVX - n=20) or with intact ovary (SHAM - n=20) remained sedentary (OVX and SHAM) or performed aerobic exercise training on a treadmill 5 times a week for a period of 8 weeks (OVX-TRA and SHAM-TRA). In the thoracic aorta the endothelium-dependent and -independent vasodilation was assessed by acetylcholine (ACh) and sodium nitroprusside (SNP), respectively. Certain aortic rings were incubated with L-NAME to assess the NO modulation on the ACh-induced vasodilation. The fluorescence to dihydroethidium in aortic slices and plasma nitrite/nitrate concentrations were measured to evaluate ROS and NO bioavailability, respectively. RESULTS ACh-induced vasodilation was reduced in OVX rats as compared SHAM (Rmax: SHAM: 86±3.3 vs. OVX: 57±3.0%, p<0.01). Training prevented this response in OVX-TRA (Rmax: OVX-TRA: 88±2.0%, p<0.01), while did not change it in SHAM-TRA (Rmax: SHAM-TRA: 80±2.2%, p<0.01). The L-NAME incubation abolished the differences in ACh-induced relaxation among groups. SNP-induced vasodilation was not different among groups. OVX reduced nitrite/nitrate plasma concentrations and increased ROS in aortic slices, training as effective to restore these parameters to the SHAM levels. CONCLUSIONS Exercise training, even in estrogen deficiency conditions, is able to improve endothelial dependent vasodilation in rat aorta via enhanced NO bioavailability and reduced ROS levels.
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Affiliation(s)
| | - Gisele K. Couto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Mariana C. Lazzarin
- Department of Biosciences, Federal University of Sao Paulo, Santos, Sao Paulo, Brazil
| | - Luciana V. Rossoni
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Alessandra Medeiros
- Department of Biosciences, Federal University of Sao Paulo, Santos, Sao Paulo, Brazil
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30
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Bowen TS, Rolim N, Fischer T, Bækkerud F, Medeiros A, Werner S, Bronstad E, Rognmo O, Mangner N, Linke A, Schuler G, Silva G, Wisloff U, Adams V. Heart Failure with Preserved Ejection Fraction Induces Molecular, Mitochondrial, Histological, and Functional Alterations in Rat Diaphragm Muscle. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1013.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- T Scott Bowen
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Natale Rolim
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | - Tina Fischer
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Fredrik Bækkerud
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | | | - Sarah Werner
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Eivind Bronstad
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | - Oivind Rognmo
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | - Norman Mangner
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Axel Linke
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Gerhard Schuler
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
| | - Gustavo Silva
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | - Ulrik Wisloff
- Department of Circulation and Medical ImagingNorwegian University of Science and TechnologyNorway
| | - Volker Adams
- Department of Internal Medicine and CardiologyLeipzig University ‐ Heart CenterGermany
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31
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Bowen TS, Rolim NPL, Fischer T, Baekkerud FH, Medeiros A, Werner S, Brønstad E, Rognmo O, Mangner N, Linke A, Schuler G, Silva GJJ, Wisløff U, Adams V. Heart failure with preserved ejection fraction induces molecular, mitochondrial, histological, and functional alterations in rat respiratory and limb skeletal muscle. Eur J Heart Fail 2015; 17:263-72. [DOI: 10.1002/ejhf.239] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/18/2014] [Accepted: 12/20/2014] [Indexed: 11/11/2022] Open
Affiliation(s)
- T. Scott Bowen
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Natale P. L. Rolim
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | - Tina Fischer
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Fredrik H. Baekkerud
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | | | - Sarah Werner
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Eivind Brønstad
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | - Oivind Rognmo
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | - Norman Mangner
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Axel Linke
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Gerhard Schuler
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
| | - Gustavo J. J. Silva
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | - Ulrik Wisløff
- K.G. Jebsen Centre of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
| | - Volker Adams
- Department of Internal Medicine and Cardiology; Leipzig University-Heart Centre; Strümpellstrasse 39 D-04289 Leipzig Germany
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32
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Martins-Meneses DT, Antunes HKM, de Oliveira NRC, Medeiros A. Mat Pilates training reduced clinical and ambulatory blood pressure in hypertensive women using antihypertensive medications. Int J Cardiol 2015; 179:262-8. [DOI: 10.1016/j.ijcard.2014.11.064] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 11/05/2014] [Indexed: 11/25/2022]
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Abstract
BACKGROUND Cancer cachexia is a multi-factorial syndrome characterised by an ongoing loss of skeletal muscle mass, with or without a loss of fat mass, which leads to progressive functional impairment. Physical exercise may attenuate the effects of cancer cachexia via several mechanisms, including the modulation of muscle metabolism, insulin sensitivity and levels of inflammation. OBJECTIVES The primary objective was to determine the effects of exercise, compared to usual care or no treatment, on lean body mass, the main biomarker of cachexia, in adults with cancer. Secondary objectives, subject to the availability of data, were to examine the acceptability and safety of exercise in this setting and to compare effects according to the characteristics of the exercise intervention or patient population. SEARCH METHODS We searched the databases CENTRAL (Issue 6, 2014) , MEDLINE (1946 to June 2014), EMBASE (1974 to June 2014), DARE and HTA (Issue 6, 2014), ISI Web of Science (1900 to June 2014), LILACS (1985 to 28 June 2014), PEDro (inception to 28 June 2014), SciVerse SCOPUS (inception to 28 June 2014), Biosis Previews PreMEDLINE (1969 to June 2014) and Open Grey (inception to 28 June 2014). We also searched for ongoing studies, checked reference lists and contacted experts to seek potentially relevant research. SELECTION CRITERIA We included randomised controlled trials (RCTs) in adults meeting the clinical criteria for cancer cachexia comparing a programme of exercise as a sole or adjunct intervention to no treatment or an active control. We imposed no language restriction. DATA COLLECTION AND ANALYSIS Two review authors independently assessed titles and abstracts of articles for relevance and extracted data on study design, participants, interventions and outcomes from potentially relevant articles. MAIN RESULTS We screened 3154 individual references, of which we removed 3138 after title screening and read 16 in full. We found no trials that met the inclusion criteria. AUTHORS' CONCLUSIONS There is insufficient evidence to determine the safety and effectiveness of exercise for patients with cancer cachexia. Randomised controlled trials (i.e., preferably parallel-group or cluster-randomised trials) are required to test the effectiveness of exercise in this group. There are ongoing studies on the topic, so we will update this review to incorporate the findings.
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Affiliation(s)
- Antonio Jose Grande
- Department of Public Health, Universidade do Extremo Sul Catarinense, Av. Universitária, 1105, Criciúma, Santa Catarina, Brazil, 88806-000
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Silva GJ, Langlo KA, Rolim N, Moreira JB, Medeiros A, Alves M, Yang X, Gusky T, Lesko P, Bækkerud FH, Ness HO, Aasarød K, Hallan SI, Wisløff U. Abstract 553: High-Intensity Interval Training Partly Restores Thrombotic Microangiopathy in an Experimental Model of Hypertensive Renal Injury. Hypertension 2014. [DOI: 10.1161/hyp.64.suppl_1.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To investigate whether high intensity interval training can reduce hypertensive renal injury in Dahl salt-sensitive rats. Adult females Dahl salt-sensitivity (Dahl SS) rats were randomized in three groups: sedentary low-salt diet (LS, N=20: 0.3% NaCl), sedentary high-salt diet (HS, N=40: 8% NaCl) or high-salt diet submitted to high intensity interval training (HIT, N=20: 8% NaCl + HIT, 3x38 min/wk; 60% HRmax adding 4 intervals of 4 min at 90% HRmax). After 30 weeks of follow-up, 24h urine has been collected in metabolic cages, followed by tissue harvesting. HIT did not affect the development of hypertension induced by high-salt intake in the Dahl SS rats (147±55 vs 209±80* vs 203±79* mm Hg, for LS, HS and HIT, respectively; *p<0,05 compared to LS). However, total mortality was significantly reduced (p=0.0022) in the HIT group (8/20 events) compared to HS (23/40 events) and LS (1/20 events) groups (94.7% vs 39.9% vs 59% survival, for LS, HS and HIT respectively), most of the deaths caused by stroke (69.6% incidence in HS rats). Chronic high blood pressure caused microalbuminuria that was not reverted by exercise (0.65±0.34 vs 95±42* vs 72±37* mg/24h, for LS, HS and HIT, respectively; *p<0.05 compared to LH). Creatinine clearance was not changed by either hypertension or exercise (1.91±0.58 vs 1.73±0.85 vs 1.60±0.66 ml/min, for LS, HS and HIT, respectively; p=0.53). Histological analysis of the renal injury reveled that HIT did not reverse the expansion of mesangial matrix (125±40 vs 179±44* vs 188±47*, for LS, HS and HIT, respectively; *p<0.05 compared to LS) and no glomerulosclerosis were detected (69±36 vs 97±36 vs 117±57, for LS, HS and HIT, respectively; p=0.12). Interesting, HIT significantly reduced (7/10) the number of nephrons with thrombotic microangiopathy observed in the HS (10/11) compared to LS (0/15) group (0.00±0.00 vs 8.82±2.82* vs 6.60±3.06 counts/kidney, for LS, HS and HIT, respectively; *p<0.05 compared to LS). Taken together our data demonstrate that, although no changes have been observed in the hypertension status and microalbuminuria, HIT partially reverted the high thrombotic microangiopathy incidence in the Dahl salt model, and may explain the reduction in the mortality caused by stroke.
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Affiliation(s)
- Gustavo J Silva
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Knut A Langlo
- Div of Nephrology, Dept of Medicine, St Olav Univ Hosp, Trondheim, Norway, Trondheim, Norway
| | - Natale Rolim
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Jose B Moreira
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Alessandra Medeiros
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Marcia Alves
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Xiaojuan Yang
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Till Gusky
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Paulina Lesko
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Fredrik H Bækkerud
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Henning O Ness
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
| | - Knut Aasarød
- Div of Nephrology, Dept of Medicine, St Olav Univ Hosp, Trondheim, Norway, Trondheim, Norway
| | - Stein I Hallan
- Div of Nephrology, Dept of Medicine, St Olav Univ Hosp, Trondheim, Norway, Trondheim, Norway
| | - Ulrik Wisløff
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway, Trondheim, Norway
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Rolim N, Moreira JB, Medeiros A, Alves M, Yang X, Gusky T, Lesko P, Bækkerud FH, Ness HO, Rolfseng T, Silva GJ, Wisløff U. Abstract 420: Characterization of Dahl Salt-Sensitive Rat Model for Heart Failure with Preserved Ejection Fraction Research: Defining Diagnostic Criteria. Hypertension 2014. [DOI: 10.1161/hyp.64.suppl_1.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Heart failure with preserved ejection fraction (HFpEF) is a condition that accounts for approximately 50 % of heart failure cases with the prevalence increased with advancing age. As of now, no effective treatment is available for HFpEF, which calls for continued efforts towards novel therapies. Dahl salt-sensitive (Dahl SS) rats have recently been reported as an experimental model of HFpEF, although a specific diagnostic criteria for HFpEF is still unclear in rodents. We aimed to provide clear criteria to identify HFpEF in Dahl SS rats. After a follow-up of 28 weeks, adult female Dahl SS rats receiving high salt (HS, 8 % NaCl) diet developed chronic hypertension (209 ± 80 vs. 147 ± 55 mm Hg;
P
<0.05 vs. low salt-fed control group (LS, 0.3 % NaCl) with consistent left ventricle (LV) remodeling compared to LS rats (LV hypertrophy index: 2.62 ± 0.07 vs. 1.79 ± 0.03 mg/mm, and cardiomyocyte cross-sectional area: 497 ± 38.9 vs. 290 ± 8.15 μm
2
, respectively;
P
< 0.05) and EF > 50 % (67.7 ± 1.5 %). Evidence that HS rats have developed HFpEF was observed only in rats with left atrial dimension (LAD)/body weight (BW), E/A, and E/E’ ratios above the 75
th
percentile of the LS group (17.50 mm/kg, 1.53, and 14.25, respectively). In addition, HS rats diagnosed with HFpEF had increased LV end-diastolic pressure and plasma NT-proBNP compared to LS rats (12.8 ± 3.4 vs. 5.8 ± 0.8 mm Hg, and 78.7 ± 18.0 vs. 17.7 ± 3.5 pg/mL, respectively;
P
< 0.05), while no significant changes in LAD/BW, E/A, E/E’, and plasma NT-proBNP were demonstrated in HS rats not matching the suggested criteria for HFpEF. Distance run was not different between HS and LS groups. Survival rate was 39.9 % in HS compared to 94.7 % in LS rats (
P
= 0.0001), with stroke as the main cause of death (69.6 % incidence in HS rats). These results provide the first clear criteria for diagnosis of HFpEF in Dahl SS rats. Our findings have important implications for future preclinical studies aiming to develop novel therapeutic strategies targeting diastolic dysfunction in HFpEF.
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Affiliation(s)
- Natale Rolim
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Jose B Moreira
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Alessandra Medeiros
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Marcia Alves
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Xiaojuan Yang
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Till Gusky
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Paulina Lesko
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Fredrik H Bækkerud
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Henning O Ness
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Toril Rolfseng
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Gustavo J Silva
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
| | - Ulrik Wisløff
- K.G. Jebsen Cntr of Exercise in Medicine, Dept of Circulation and Med Imaging, Faculty of Medicine, Norwegian Univ of Science and Technology, Trondheim, Norway
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Medeiros A, Alves A, Aguiar P, Bourbon M. Apob/apoa1 ratio improves clinical criteria sensitivity for the identification of fh children. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lima-Leopoldo AP, Leopoldo AS, da Silva DCT, do Nascimento AF, de Campos DHS, Luvizotto RAM, de Deus AF, Freire PP, Medeiros A, Okoshi K, Cicogna AC. Long-term obesity promotes alterations in diastolic function induced by reduction of phospholamban phosphorylation at serine-16 without affecting calcium handling. J Appl Physiol (1985) 2014; 117:669-78. [PMID: 24970855 DOI: 10.1152/japplphysiol.00088.2014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Few studies have evaluated the relationship between the duration of obesity, cardiac function, and the proteins involved in myocardial calcium (Ca(2+)) handling. We hypothesized that long-term obesity promotes cardiac dysfunction due to a reduction of expression and/or phosphorylation of myocardial Ca(2+)-handling proteins. Thirty-day-old male Wistar rats were distributed into two groups (n = 10 each): control (C; standard diet) and obese (Ob; high-fat diet) for 30 wk. Morphological and histological analyses were assessed. Left ventricular cardiac function was assessed in vivo by echocardiographic evaluation and in vitro by papillary muscle. Cardiac protein expression of sarcoplasmic reticulum (SR) Ca(2+)-ATPase (SERCA2a), calsequestrin, L-type Ca(2+) channel, and phospholamban (PLB), as well as PLB serine-16 phosphorylation (pPLB Ser(16)) and PLB threonine-17 phosphorylation (pPLB Thr(17)) were determined by Western blot. The adiposity index was higher (82%) in Ob rats than in C rats. Obesity promoted cardiac hypertrophy without alterations in interstitial collagen levels. Ob rats had increased endocardial and midwall fractional shortening, posterior wall shortening velocity, and A-wave compared with C rats. Cardiac index, early-to-late diastolic mitral inflow ratio, and isovolumetric relaxation time were lower in Ob than in C. The Ob muscles developed similar baseline data and myocardial responsiveness to increased extracellular Ca(2+). Obesity caused a reduction in cardiac pPLB Ser(16) and the pPLB Ser(16)/PLB ratio in Ob rats. Long-term obesity promotes alterations in diastolic function, most likely due to the reduction of pPLB Ser(16), but does not impair the myocardial Ca(2+) entry and recapture to SR.
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Affiliation(s)
- Ana Paula Lima-Leopoldo
- Center for Physical Education and Sports, Department of Sports, Federal University of Espírito Santo, Vitória;
| | - André S Leopoldo
- Center for Physical Education and Sports, Department of Sports, Federal University of Espírito Santo, Vitória
| | - Danielle C T da Silva
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - André F do Nascimento
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - Dijon H S de Campos
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - Renata A M Luvizotto
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - Adriana F de Deus
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - Paula P Freire
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | | | - Katashi Okoshi
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
| | - Antonio C Cicogna
- Department of Clinic and Cardiology, School of Medicine, Universidade Estadual Paulista, Botucatu, São Paulo; and
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Mostarda C, Rodrigues B, Medeiros A, Moreira ED, Moraes-Silva IC, Brum PC, Angelis KD, Irigoyen MC. Baroreflex deficiency induces additional impairment of vagal tone, diastolic function and calcium handling proteins after myocardial infarction. Am J Transl Res 2014; 6:320-8. [PMID: 24936224 PMCID: PMC4058313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 04/19/2014] [Indexed: 06/03/2023]
Abstract
Baroreflex dysfunction has been considered an important mortality predictor after myocardial infarction (MI). However, the impact of baroreflex deficiency prior to MI on tonic autonomic control and cardiac function, and on the profile of proteins associated with intracellular calcium handling has not yet been studied. The aim of the present study was to analyze how the impairment of baroreflex induced by sinoaortic denervation (SAD) prior to MI in rats affects the tonic autonomic control, ventricular function and cardiomyocyte calcium handling proteins. After 15 days of following or SAD surgery, rats underwent MI. Echocardiographic, hemodynamic, autonomic and molecular evaluations were performed 90 days after MI. Baroreflex impairment led to additional damage on: left ventricular remodeling, diastolic function, vagal tonus and intrinsic heart rate after MI. The loss of vagal component of the arterial baroreflex and vagal tonus were correlated with changes in the cardiac proteins involved in intracellular calcium homeostasis. Furthermore, additional increase in sodium calcium exchanger expression levels was associated with impaired diastolic function in experimental animals. Our findings strongly suggest that previous arterial baroreflex deficiency may induce additional impairment of vagal tonus, which was associated with calcium handling proteins abnormalities, probably triggering ventricular diastolic dysfunction after MI in rats.
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Affiliation(s)
| | - Bruno Rodrigues
- Human Movement Laboratory, Sao Judas Tadeu University (USJT)São Paulo, São Paulo, Brazil
| | | | - Edson D Moreira
- Hypertension Unit, Heart Intitute (InCor), Medical School of University of Sao PauloSão Paulo, São Paulo, Brazil. Av. Dr. Eneas de Carvalho Aguiar, 44. CEP: 05403-000
| | - Ivana C Moraes-Silva
- Hypertension Unit, Heart Intitute (InCor), Medical School of University of Sao PauloSão Paulo, São Paulo, Brazil. Av. Dr. Eneas de Carvalho Aguiar, 44. CEP: 05403-000
| | - Patricia C Brum
- School of Physical Education and Sports, University of Sao PauloSão Paulo, São Paulo, Brazil
| | - Katia De Angelis
- Translational Physiology Laboratory, Nove de Julho University (UNINOVE)São Paulo, São Paulo, Brazil
| | - Maria-Cláudia Irigoyen
- Hypertension Unit, Heart Intitute (InCor), Medical School of University of Sao PauloSão Paulo, São Paulo, Brazil. Av. Dr. Eneas de Carvalho Aguiar, 44. CEP: 05403-000
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Sirvente RA, Irigoyen MC, Souza LE, Mostarda C, La Fuente RN, Candido GO, Souza PRM, Medeiros A, Mady C, Salemi VMC. Cardiac impairment evaluated by transesophageal echocardiography and invasive measurements in rats undergoing sinoaortic denervation. PLoS One 2014; 9:e87935. [PMID: 24828834 PMCID: PMC4020758 DOI: 10.1371/journal.pone.0087935] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 01/06/2014] [Indexed: 01/20/2023] Open
Abstract
Background Sympathetic hyperactivity may be related to left ventricular (LV) dysfunction and baro- and chemoreflex impairment in hypertension. However, cardiac function, regarding the association of hypertension and baroreflex dysfunction, has not been previously evaluated by transesophageal echocardiography (TEE) using intracardiac echocardiographic catheter. Methods and Results We evaluated exercise tests, baroreflex sensitivity and cardiovascular autonomic control, cardiac function, and biventricular invasive pressures in rats 10 weeks after sinoaortic denervation (SAD). The rats (n = 32) were divided into 4 groups: 16 Wistar (W) with (n = 8) or without SAD (n = 8) and 16 spontaneously hypertensive rats (SHR) with (n = 8) or without SAD (SHRSAD) (n = 8). Blood pressure (BP) and heart rate (HR) did not change between the groups with or without SAD; however, compared to W, SHR groups had higher BP levels and BP variability was increased. Exercise testing showed that SHR had better functional capacity compared to SAD and SHRSAD. Echocardiography showed left ventricular (LV) concentric hypertrophy; segmental systolic and diastolic biventricular dysfunction; indirect signals of pulmonary arterial hypertension, mostly evident in SHRSAD. The end-diastolic right ventricular (RV) pressure increased in all groups compared to W, and the end-diastolic LV pressure increased in SHR and SHRSAD groups compared to W, and in SHRSAD compared to SAD. Conclusions Our results suggest that baroreflex dysfunction impairs cardiac function, and increases pulmonary artery pressure, supporting a role for baroreflex dysfunction in the pathogenesis of hypertensive cardiac disease. Moreover, TEE is a useful and feasible noninvasive technique that allows the assessment of cardiac function, particularly RV indices in this model of cardiac disease.
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Affiliation(s)
- Raquel A. Sirvente
- Cardiomyopathy Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- * E-mail:
| | - Maria C. Irigoyen
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Leandro E. Souza
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Cristiano Mostarda
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Raquel N. La Fuente
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Georgia O. Candido
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Pamella R. M. Souza
- Hypertension Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Alessandra Medeiros
- Federal University of São Paulo, Biosciences Department, Santos, São Paulo, Brazil
| | - Charles Mady
- Cardiomyopathy Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Vera M. C. Salemi
- Cardiomyopathy Unit of the Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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40
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Moraes W, Souza P, Paixao N, Bozi L, Guimaraes F, Irigoyen M, Brum P, Medeiros A. Moderate aerobic exercise training recovers disorders in white skeletal muscle induced by chronic kidney disease in rats (884.16). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.884.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wilson Moraes
- Department of Biosciences Federal University of Sao PauloSantosBrazil
| | - Pamella Souza
- Experimental Hypertension Heart Institute São PauloBrazil
| | - Nathalie Paixao
- School of Physical Education and Sport University of Sao Paulo São PauloBrazil
| | - Luiz Bozi
- School of Physical Education and Sport University of Sao Paulo São PauloBrazil
| | - Fabiana Guimaraes
- School of Physical Education and Sport University of Sao Paulo São PauloBrazil
| | - Maria Irigoyen
- Experimental Hypertension Heart Institute São PauloBrazil
| | - Patricia Brum
- School of Physical Education and Sport University of Sao Paulo São PauloBrazil
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Souza P, Flues K, De Moraes W, Santos F, Ferreira J, Medeiros A, De Angelis K, Irigoyen MC. Spontaneous hypertension induced pulmonar and diaphragm disorders in rats (856.11). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.856.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pamella Souza
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
| | - Karin Flues
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
| | - Wilson De Moraes
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
| | - Fernando Santos
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
| | - Janaina Ferreira
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
| | | | - Katia De Angelis
- Experimental Hypertension Laboratory ‐ Heart Institute Sao PauloBrazil
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Peña S, Fagundez C, Medeiros A, Comini M, Scarone L, Sellanes D, Manta E, Tulla-Puche J, Albericio F, Stewart L, Yardley V, Serra G. Synthesis of cyclohexapeptides as antimalarial and anti-trypanosomal agents. Med Chem Commun 2014. [DOI: 10.1039/c4md00135d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Azolic and non-azolic cyclohexapeptides were obtained and/or evaluated as promising antimalarial and/or anti-trypanosomal agents.
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Affiliation(s)
- S. Peña
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - C. Fagundez
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - A. Medeiros
- Group Redox Biology of Trypanosomes
- Institut Pasteur de Montevideo
- Montevideo, Uruguay
- Departamento de Bioquímica
- Facultad de Medicina
| | - M. Comini
- Group Redox Biology of Trypanosomes
- Institut Pasteur de Montevideo
- Montevideo, Uruguay
| | - L. Scarone
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - D. Sellanes
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - E. Manta
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - J. Tulla-Puche
- Institute for Research in Biomedicine (IRB Barcelona)
- 08028-Barcelona, Spain
- Centre on Bioengineering
- Biomaterials and Nanomedicine
- Barcelona Science Park
| | - F. Albericio
- Institute for Research in Biomedicine (IRB Barcelona)
- 08028-Barcelona, Spain
- Centre on Bioengineering
- Biomaterials and Nanomedicine
- Barcelona Science Park
| | - L. Stewart
- Faculty of Infectious & Tropical Disease
- LSHTM
- London, UK
| | - V. Yardley
- Faculty of Infectious & Tropical Disease
- LSHTM
- London, UK
| | - G. Serra
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
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Grande AJ, Silva V, Maddocks M, Riera R, Medeiros A, Vitoriano SGP, Peccin MS. Exercise for cancer cachexia in adults. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2013. [DOI: 10.1002/14651858.cd010804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jamar G, Pisani L, Sanches R, Carvalho L, Moraes A, Medeiros A, Oyama L, Caranti D. PP234-MON SHORT-TERM INTERDISCIPLINARY THERAPY PROMOTES IMPROVEMENT IN FOOD INTAKE AND METABOLIC PROFILE IN OBESE WOMEN. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60544-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Vanzelli AS, Medeiros A, Rolim N, Bartholomeu JB, Cunha TF, Bechara LG, Gomes ERM, Mattos KC, Sirvente R, Salemi V, Mady C, Negrao CE, Guatimosim S, Brum PC. Integrative effect of carvedilol and aerobic exercise training therapies on improving cardiac contractility and remodeling in heart failure mice. PLoS One 2013; 8:e62452. [PMID: 23658728 PMCID: PMC3641040 DOI: 10.1371/journal.pone.0062452] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 03/21/2013] [Indexed: 11/19/2022] Open
Abstract
The use of β-blockers is mandatory for counteracting heart failure (HF)-induced chronic sympathetic hyperactivity, cardiac dysfunction and remodeling. Importantly, aerobic exercise training, an efficient nonpharmacological therapy to HF, also counteracts sympathetic hyperactivity in HF and improves exercise tolerance and cardiac contractility; the latter associated with changes in cardiac Ca2+ handling. This study was undertaken to test whether combined β–blocker and aerobic exercise training would integrate the beneficial effects of isolated therapies on cardiac structure, contractility and cardiomyocyte Ca2+ handling in a genetic model of sympathetic hyperactivity-induced HF (α2A/α2C- adrenergic receptor knockout mice, KO). We used a cohort of 5–7 mo male wild-type (WT) and congenic mice (KO) with C57Bl6/J genetic background randomly assigned into 5 groups: control (WT), saline-treated KO (KOS), exercise trained KO (KOT), carvedilol-treated KO (KOC) and, combined carvedilol-treated and exercise-trained KO (KOCT). Isolated and combined therapies reduced mortality compared with KOS mice. Both KOT and KOCT groups had increased exercise tolerance, while groups receiving carvedilol had increased left ventricular fractional shortening and reduced cardiac collagen volume fraction compared with KOS group. Cellular data confirmed that cardiomyocytes from KOS mice displayed abnormal Ca2+ handling. KOT group had increased intracellular peak of Ca2+ transient and reduced diastolic Ca2+ decay compared with KOS group, while KOC had increased Ca2+ decay compared with KOS group. Notably, combined therapies re-established cardiomyocyte Ca2+ transient paralleled by increased SERCA2 expression and SERCA2:PLN ratio toward WT levels. Aerobic exercise trained increased the phosphorylation of PLN at Ser16 and Thr17 residues in both KOT and KOCT groups, but carvedilol treatment reduced lipid peroxidation in KOC and KOCT groups compared with KOS group. The present findings provide evidence that the combination of carvedilol and aerobic exercise training therapies lead to a better integrative outcome than carvedilol or exercise training used in isolation.
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Affiliation(s)
- Andréa S. Vanzelli
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | | | - Natale Rolim
- Department of Circulation and Medical Imaging and K.G. Jebsen Center of Exercise in Medicine, Trondheim, Norway
| | - Jan B. Bartholomeu
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Telma F. Cunha
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Luiz G. Bechara
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Enéas R. M. Gomes
- Physiology and Biophysics Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Katt C. Mattos
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Raquel Sirvente
- Heart Institute (InCor), University of São Paulo, Medical School, São Paulo, Brazil
| | - Vera Salemi
- Heart Institute (InCor), University of São Paulo, Medical School, São Paulo, Brazil
| | - Charles Mady
- Heart Institute (InCor), University of São Paulo, Medical School, São Paulo, Brazil
| | - Carlos E. Negrao
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- Heart Institute (InCor), University of São Paulo, Medical School, São Paulo, Brazil
| | - Silvia Guatimosim
- Physiology and Biophysics Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Patricia C. Brum
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- * E-mail:
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Rodrigues B, Jorge L, Mostarda CT, Rosa KT, Medeiros A, Malfitano C, de Souza AL, Viegas KADS, Lacchini S, Curi R, Brum PC, De Angelis K, Irigoyen MC. Aerobic exercise training delays cardiac dysfunction and improves autonomic control of circulation in diabetic rats undergoing myocardial infarction. J Card Fail 2013; 18:734-44. [PMID: 22939043 DOI: 10.1016/j.cardfail.2012.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 07/13/2012] [Accepted: 07/17/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND Exercise training (ET) has been used as a nonpharmacological strategy for treatment of diabetes and myocardial infarction (MI) separately. We evaluated the effects ET on functional and molecular left ventricular (LV) parameters as well as on autonomic function and mortality in diabetics after MI. METHODS AND RESULTS Male Wistar rats were divided into control (C), sedentary-diabetic infarcted (SDI), and trained-diabetic infarcted (TDI) groups. MI was induced after 15 days of streptozotocin-diabetes induction. Seven days after MI, the trained group underwent ET protocol (90 days, 50-70% maximal oxygen consumption-VO(2)max). LV function was evaluated noninvasively and invasively; baroreflex sensitivity, pulse interval variability, cardiac output, tissue blood flows, VEGF mRNA and protein, HIF1-α mRNA, and Ca(2+) handling proteins were measured. MI area was reduced in TDI (21 ± 4%) compared with SDI (38 ± 4%). ET induced improvement in cardiac function, hemodynamics, and tissue blood flows. These changes were probable consequences of a better expression of Ca(2+) handling proteins, increased VEGF mRNA and protein expression as well as improvement in autonomic function, that resulted in reduction of mortality in TDI (33%) compared with SDI (68%) animals. CONCLUSIONS ET reduced cardiac and peripheral dysfunction and preserved autonomic control in diabetic infarcted rats. Consequently, these changes resulted in improved VO(2)max and survival after MI.
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Affiliation(s)
- Bruno Rodrigues
- Human Movement Laboratory, São Judas Tadeu University, São Paulo-SP, Brazil.
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Montrezol FT, Medeiros A. Abstract 303: Effect of a Resistance Training Period on Blood Pressure, Circulating Levels of Interleukine-6, Quality of Life and Functional Capacities in Elderly Hypertensive Patients. Hypertension 2012. [DOI: 10.1161/hyp.60.suppl_1.a303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aging increases susceptibility to hypertension, and also promotes muscle wasting, thereby increasing the risk of falls within the elderly. In contrast, the resistance training (RT) is recommended for increasing or maintaining muscle strength levels in the elderly. However, there is still no consensus in the literature about its effectiveness for hypertension treatment. Therefore, the aim of this study was to verify the effect of RT on blood pressure, circulating levels of Interleukine-6 (IL-6), quality of life and functional capacities in elderly hypertensive patients.
Methods
43 subjects were randomized in two groups: sedentary (S) and RT. The RT was practiced during 14 weeks in three non-consecutive days per week, with 50% of 1 maximal repetition of intensity. Before and after experiment period were evaluated blood pressure by ambulatory blood pressure monitoring (ABPM), IL-6 by ELISA kit, quality of life by questionnaire (SF-36) and functional capacities by battery of functional tests. Data were analyzed using ANOVA two-way (p≤0.05).
Results
The S group showed no statistical differences in ABPM, IL-6, SF-36 and functional testing, pre and post experiment. On the other hand, the RT group had significant reductions in systolic blood pressure within 24 hours (125 ± 2; 120±3 mmHg pre and post, respectively), day-time (127±2; 123±3 mmHg pre and post, respectively) and morning-time (125±4; 118±3 mmHg pre and post, respectively), diastolic blood pressure in 24-hours (69±1; 66±1 mmHg pre and post, respectively), night-time (64±1; 59±1 mmHg pre and post, respectively) and morning-time (69±2; 66±1 mmHg pre and post, respectively), mean blood pressure in 24-hours (91±1; 86±2 mmHg pre and post, respectively), day-time (93±1; 89±2 mmHg pre and post, respectively) and morning-time (87±2; 84±2 mmHg pre and post, respectively). In the SF-36, the RT group improved its results in all categories, which was also observed in the functional tests. The RT group showed a trend towards reduction in IL-6, which was not observed in the S group.
Conclusion
A period of resistance training lowered blood pressure and improved quality of life and functional capacity of elderly hypertensive patients.
Acknowledgements: FAPESP 2011/23830-3
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Moraes WMD, Souza PRM, Pinheiro MHNP, Irigoyen MC, Medeiros A, Koike MK. Exercise training program based on minimum weekly frequencies: effects on blood pressure and physical fitness in elderly hypertensive patients. Braz J Phys Ther 2012; 16:114-21. [PMID: 22481693 DOI: 10.1590/s1413-35552012005000013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Accepted: 08/30/2011] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Exercise training (ET) can reduce blood pressure (BP) and prevent functional disability. However, the effects of low volumes of training have been poorly studied, especially in elderly hypertensive patients. OBJECTIVES To investigate the effects of a multi-component ET program (aerobic training, strength, flexibility, and balance) on BP, physical fitness, and functional ability of elderly hypertensive patients. METHODS Thirty-six elderly hypertensive patients with optimal clinical treatment underwent a multi-component ET program: two 60-minute sessions a week for 12 weeks at a Basic Health Unit. RESULTS Compared to pre-training values, systolic and diastolic BP were reduced by 3.6% and 1.2%, respectively (p<0.001), body mass index was reduced by 1.1% (p<0.001), and peripheral blood glucose was reduced by 2.5% (p=0.002). There were improvements in all physical fitness domains: muscle strength (chair-stand test and elbow flexor test; p<0.001), static balance test (unipedal stance test; p<0.029), aerobic capacity (stationary gait test; p<0.001), except for flexibility (sit and reach test). Moreover, there was a reduction in the time required to perform two functional ability tests: "put on sock" and "sit down, stand up, and move around the house" (p<0.001). CONCLUSIONS Lower volumes of ET improved BP, metabolic parameters, and physical fitness and reflected in the functional ability of elderly hypertensive patients. Trial Registration RBR-2xgjh3.
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Affiliation(s)
- Wilson M De Moraes
- School of Physical Education and Sport, Universidade de São Paulo, São Paulo, SP, Brazil
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Nicastro H, Zanchi NE, da Luz CR, de Moraes WM, Ramona P, de Siqueira Filho MA, Chaves DF, Medeiros A, Brum PC, Dardevet D, Lancha AH. Effects of leucine supplementation and resistance exercise on dexamethasone-induced muscle atrophy and insulin resistance in rats. Nutrition 2012; 28:465-71. [DOI: 10.1016/j.nut.2011.08.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 06/23/2011] [Accepted: 08/17/2011] [Indexed: 10/15/2022]
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Cravo A, Pereira C, Gomes T, Cardoso C, Serafim A, Almeida C, Rocha T, Lopes B, Company R, Medeiros A, Norberto R, Pereira R, Araújo O, Bebianno MJ. A multibiomarker approach in the clam Ruditapes decussatus to assess the impact of pollution in the Ria Formosa lagoon, South Coast of Portugal. Mar Environ Res 2012; 75:23-34. [PMID: 22001190 DOI: 10.1016/j.marenvres.2011.09.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/22/2011] [Accepted: 09/23/2011] [Indexed: 05/31/2023]
Abstract
The Ria Formosa lagoon is an ecosystem whose water quality reflects the anthropogenic influence upon the surrounding areas. In this lagoon, the clam Ruditapes decussatus has a great economical importance and has been widely used as a biomonitor. A multibiomarker approach (δ-aminolevulinic acid dehydratase, metallothionein, lipid peroxidation, acetylcholinesterase, alkali-labile phosphates, DNA damage) was applied to assess the environmental quality of this ecosystem and the accumulation of contaminants and their potential adverse effects on clams. Clams were sampled in different shellfish beds in the period between July 2007 and December 2008 and abiotic parameters (temperature, salinity, pH and dissolved oxygen of seawater and organic matter in the sediment), condition index, metals (Cd, Cu, Zn, Ni, Pb), TBTs and PAHs concentrations were measured in clam tissues. Data was integrated using Principal Component Analyses and biomarker indices: IBR (Integrated Biomarker Response) and HSI (Health Status Index). This multibiomarker approach enabled discrimination of a time and space trend between sites with different degrees of anthropogenic contamination, identifying one of them (site 2) as the most stressful and summer months as the most critical period for clams due to an increase of environmental stress (anthropogenic pressure along with extreme environmental conditions, e.g. temperature, dissolved oxygen, organic matter in the sediments, etc). The selected biomarkers provided an integrated response to assess the environmental quality of the system, proving to be a useful approach when complex mixtures of contaminants occur.
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Affiliation(s)
- A Cravo
- CIMA-Centre for Marine and Environmental Research, Faculty of Sciences and Technology (FCT), University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
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