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Tramontin NDS, Luciano TF, Marques SDO, de Souza CT, Muller AP. Ginger and avocado as nutraceuticals for obesity and its comorbidities. Phytother Res 2020; 34:1282-1290. [PMID: 31989713 DOI: 10.1002/ptr.6619] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/19/2019] [Accepted: 01/13/2020] [Indexed: 12/17/2023]
Abstract
Obesity is a worldwide epidemic and is one of the factors involved in the etiology of type 2 diabetes mellitus. Obesity induces low-grade inflammation and oxidative stress. The treatment for obesity involves changes in diet, physical activity, and even medication and surgery. Currently, the use of nutraceutical compounds is associated with health benefits. Ginger and avocado are used for many people all around the world; however, its effect as a nutraceutical compound is less known by the general population. For this reason, we searched information of the literature to point its effects on distinct mechanisms of defense against the obesity its comorbidities. The present review aimed showing that these nutraceuticals may be useful in obesity treatment. Reports have shown that ginger and avocado induce antioxidant and anti-inflammatory effects by improving enzymatic activity and modulating obesity-related impairments in the anti-inflammatory system in different tissues, without side effects. Furthermore, ginger and avocado were found to be effective in reversing the harmful effects of obesity on blood lipids. In conclusion, on the basis of the positive effects of ginger and avocado in in vitro, animal, and human studies, these nutraceuticals may be useful in obesity treatment.
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Affiliation(s)
| | - Thais F Luciano
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | | | - Claudio T de Souza
- Department of Internal Medicine, Medicine School, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Alexandre P Muller
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Prada PO, Ropelle ER, Mourão RH, de Souza CT, Pauli JR, Cintra DE, Schenka A, Rocco SA, Rittner R, Franchini KG, Vassallo J, Velloso LA, Carvalheira JB, Saad MJA. Statement of Retraction. EGFR Tyrosine Kinase Inhibitor (PD153035) Improves Glucose Tolerance and Insulin Action in High-Fat Diet-Fed Mice. Diabetes 2009;58:2910-2919. DOI: 10.2337/db08-0506. PMID: 19696185. Diabetes 2017; 66:2059. [PMID: 28450418 PMCID: PMC5482084 DOI: 10.2337/db17-rt07a] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Valvassori SS, Dal-Pont GC, Resende WR, Jornada LK, Peterle BR, Machado AG, Farias HR, de Souza CT, Carvalho AF, Quevedo J. Lithium and valproate act on the GSK-3β signaling pathway to reverse manic-like behavior in an animal model of mania induced by ouabain. Neuropharmacology 2017; 117:447-459. [DOI: 10.1016/j.neuropharm.2016.10.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 10/04/2016] [Accepted: 10/13/2016] [Indexed: 11/28/2022]
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Prada PO, Ropelle ER, Mourão RH, de Souza CT, Pauli JR, Cintra DE, Schenka A, Rocco SA, Rittner R, Franchini KG, Vassallo J, Velloso LA, Carvalheira JB, Saad MJA. Expression of Concern. EGFR Tyrosine Kinase Inhibitor (PD153035) Improves Glucose Tolerance and Insulin Action in High-Fat Diet-Fed Mice. Diabetes 2009;58:2910-2919. DOI: 10.2337/db08-0506. PMID: 19696185. Diabetes 2017; 66:1098. [PMID: 28188141 PMCID: PMC6973588 DOI: 10.2337/db17-ec04a] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lira FS, Lemos VA, Bittar IG, Caris AV, Dos Santos RV, Tufik S, Zagatto AM, de Souza CT, Pimentel GD, De Mello MT. Physiological and cytokine response to acute exercise under hypoxic conditions: a pilot study. J Sports Med Phys Fitness 2016; 57:461-468. [PMID: 26796076 DOI: 10.23736/s0022-4707.16.06073-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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 Studies have demonstrated that exercise in hypoxia situations induces a cytotoxicity effects. However, the cytokines participation in this condition is remaining unknown. Thus, the aim the present study was to evaluate physiological parameters and inflammatory profiles in response to acute exercise after five hours of hypoxic conditions. METHODS Fourteen healthy men were distributed randomly into two groups: normoxic exercise (N.=7) and hypoxic exercise (N.=7). All volunteers were blinded to the protocol. Initially, all subjects were submitted to chamber normobaric in a room fitted for altitude simulations of up to 4500 m, equivalent to a barometric pressure of 433 mmHg. All analyses began at 7:00 a.m. and was maintained for 5 hours; the fraction of inspired oxygen (FiO2) was 13.5%. The groups began a 60-minute session of physical exercise starting at 11:00 a.m., at 50% of peak VO2 (50% VO2peak). Blood was collected for cytokine analysis in the morning upon waking, before the 60-minute exercise session and immediately thereafter. RESULTS The heart rate during 60 minutes' exercise training was significantly increased in both exercise groups (P<0.05), and the oxygen saturation was reduced under hypoxic conditions during exercise (P<0.05). After exercise, significant increases were found for IL-1ra and IL-10 under hypoxic conditions (P<0.05) and for IL-6 for both groups (P<0.05). TNF-α was not altered under either environmental condition. CONCLUSIONS Our data demonstrate that acute exercise performance in hypoxic conditions can promotes early inflammatory response, leads for immunosuppression state.
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Affiliation(s)
- Fábio S Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil -
| | - Valdir A Lemos
- Department of Psychobiology, São Paulo Federal University (UNIFESP), São Paulo, Brazil.,Center for Studies in Psychobiology and Physical Exercise (CEPE), São Paulo, Brazil
| | - Irene G Bittar
- Department of Psychobiology, São Paulo Federal University (UNIFESP), São Paulo, Brazil
| | - Aline V Caris
- Department of Biosciences, São Paulo Federal University (UNIFESP), Santos, Brazil
| | - Ronaldo V Dos Santos
- Department of Biosciences, São Paulo Federal University (UNIFESP), Santos, Brazil
| | - Sergio Tufik
- Department of Psychobiology, São Paulo Federal University (UNIFESP), São Paulo, Brazil
| | - Alessandro M Zagatto
- Department of Physical Education, Faculty of Sciences, São Paulo State University (UNESP), Bauru, Brazil
| | - Claudio T de Souza
- Laboratory of Exercise Biochemistry and Physiology, Health Sciences Unit, University of the Extreme South of Santa Catarina, Criciúma, Brazil
| | - Gustavo D Pimentel
- Laboratory for Investigation on Clinical and Sports Nutrition (Labince), Faculty of Nutrition, Federal University of Goiás, Goiânia, Brazil
| | - Marco T De Mello
- Department of Psychobiology, São Paulo Federal University (UNIFESP), São Paulo, Brazil.,Center for Studies in Psychobiology and Physical Exercise (CEPE), São Paulo, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Pereira BC, da Rocha AL, Pinto AP, Pauli JR, de Souza CT, Cintra DE, Ropelle ER, de Freitas EC, Zagatto AM, da Silva ASR. Excessive eccentric exercise-induced overtraining model leads to endoplasmic reticulum stress in mice skeletal muscles. Life Sci 2015; 145:144-51. [PMID: 26707388 DOI: 10.1016/j.lfs.2015.12.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 10/14/2015] [Revised: 11/26/2015] [Accepted: 12/16/2015] [Indexed: 12/20/2022]
Abstract
AIMS The present study verified the responses of selected endoplasmic reticulum (ER) stress proteins (i.e., BiP, ATF-6, pIRE1, pPERK, and peIF2alpha) in mice skeletal muscles after three different running overtraining (OT) protocols with same external load (i.e., intensity vs. volume), but performed in downhill, uphill and without inclination. MATERIALS AND METHODS The rodents were randomly divided into control (CT; sedentary mice), overtrained by downhill running (OTR/down), overtrained by uphill running (OTR/up) and overtrained by running without inclination (OTR) groups. The incremental load test and exhaustive test were used as performance parameters. Forty hours after the exhaustive test performed at the end of the OT protocols (i.e., at the end of week 8) and after a 2-week total recovery period (i.e., at the end of week 10), the extensor digitorum longus (EDL) and soleus muscles were removed and used for immunoblotting. KEY FINDINGS For both skeletal muscle types, the OTR/down protocol increased the pIRE-1, pPERK and peIF2alpha, which were not normalized after the total recovery period. At the end of week 8, the other two OT protocols up-regulated the BiP, pPERK and peIF2alpha levels only for the soleus muscle. These ER stress proteins were not normalized after the total recovery period for the OTR/up group. SIGNIFICANCE The above findings suggest that the OTR/down protocol-induced skeletal muscle ER stress may be linked to a pathological condition in EDL and soleus muscles.
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Affiliation(s)
- Bruno C Pereira
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, USP, Ribeirão Preto, São Paulo, Brazil
| | - Alisson L da Rocha
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, USP, Ribeirão Preto, São Paulo, Brazil
| | - Ana P Pinto
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, USP, Ribeirão Preto, São Paulo, Brazil
| | - José R Pauli
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Claudio T de Souza
- Exercise Biochemistry and Physiology Laboratory Postgraduate Program in Health Sciences, Health Sciences Unit, University of Far Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
| | - Dennys E Cintra
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Eduardo R Ropelle
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Ellen C de Freitas
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Alessandro M Zagatto
- Laboratory of Physiology and Sport Performance (LAFIDE), Faculty of Sciences, Univ Estadual Paulista - UNESP, Bauru, São Paulo, Brazil
| | - Adelino S R da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, USP, Ribeirão Preto, São Paulo, Brazil; School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
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da Rocha AL, Pereira BC, Pauli JR, Cintra DE, de Souza CT, Ropelle ER, R. da Silva AS. Downhill Running-Based Overtraining Protocol Improves Hepatic Insulin Signaling Pathway without Concomitant Decrease of Inflammatory Proteins. PLoS One 2015; 10:e0140020. [PMID: 26445495 PMCID: PMC4596708 DOI: 10.1371/journal.pone.0140020] [Citation(s) in RCA: 22] [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: 05/12/2015] [Accepted: 09/19/2015] [Indexed: 11/21/2022] Open
Abstract
The purpose of this study was to verify the effects of overtraining (OT) on insulin, inflammatory and gluconeogenesis signaling pathways in the livers of mice. Rodents were divided into control (CT), overtrained by downhill running (OTR/down), overtrained by uphill running (OTR/up) and overtrained by running without inclination (OTR). Rotarod, incremental load, exhaustive and grip force tests were used to evaluate performance. Thirty-six hours after a grip force test, the livers were extracted for subsequent protein analyses. The phosphorylation of insulin receptor beta (pIRbeta), glycogen synthase kinase 3 beta (pGSK3beta) and forkhead box O1 (pFoxo1) increased in OTR/down versus CT. pGSK3beta was higher in OTR/up versus CT, and pFoxo1 was higher in OTR/up and OTR versus CT. Phosphorylation of protein kinase B (pAkt) and insulin receptor substrate 1 (pIRS–1) were higher in OTR/up versus CT and OTR/down. The phosphorylation of IκB kinase alpha and beta (pIKKalpha/beta) was higher in all OT protocols versus CT, and the phosphorylation of stress-activated protein kinases/Jun amino-terminal kinases (pSAPK-JNK) was higher in OTR/down versus CT. Protein levels of peroxisome proliferator-activated receptor-gamma coactivator 1alpha (PGC-1alpha) and hepatocyte nuclear factor 4alpha (HNF-4alpha) were higher in OTR versus CT. In summary, OTR/down improved the major proteins of insulin signaling pathway but up-regulated TRB3, an Akt inhibitor, and its association with Akt.
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Affiliation(s)
- Alisson L. da Rocha
- Postgraduate Program in Rehabilitation and Functional Performance, RibeirãoPreto Medical School, USP, RibeirãoPreto, São Paulo, Brazil
| | - Bruno C. Pereira
- Postgraduate Program in Rehabilitation and Functional Performance, RibeirãoPreto Medical School, USP, RibeirãoPreto, São Paulo, Brazil
| | - José R. Pauli
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas, Limeira, São Paulo, Brazil
| | - Dennys E. Cintra
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas, Limeira, São Paulo, Brazil
| | - Claudio T. de Souza
- Exercise Biochemistry and Physiology Laboratory Postgraduate Program in Health Sciences, Health Sciences Unit, University of Far Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
| | - Eduardo R. Ropelle
- Sport Sciences Course, Faculty of Applied Sciences, State University of Campinas, Limeira, São Paulo, Brazil
| | - Adelino S. R. da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, RibeirãoPreto Medical School, USP, RibeirãoPreto, São Paulo, Brazil
- School of Physical Education and Sport of RibeirãoPreto, University of São Paulo, RibeirãoPreto, São Paulo, Brazil
- * E-mail:
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da Rocha AL, Pereira BC, Pauli JR, de Souza CT, Teixeira GR, Lira FS, Cintra DE, Ropelle ER, Júnior CR, da Silva AS. Downhill Running Excessive Training Inhibits Hypertrophy in Mice Skeletal Muscles with Different Fiber Type Composition. J Cell Physiol 2015; 231:1045-56. [DOI: 10.1002/jcp.25197] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 09/16/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Alisson L. da Rocha
- Postgraduate Program in Rehabilitation and Functional Performance; Ribeirão Preto Medical School; University of São Paulo (USP); Ribeirão Preto São Paulo Brazil
| | - Bruno C. Pereira
- Postgraduate Program in Rehabilitation and Functional Performance; Ribeirão Preto Medical School; University of São Paulo (USP); Ribeirão Preto São Paulo Brazil
| | - José R. Pauli
- Sport Sciences Course; Faculty of Applied Sciences; State University of Campinas (UNICAMP); Limeira São Paulo Brazil
| | - Claudio T. de Souza
- Exercise Biochemistry and Physiology Laboratory Postgraduate Program in Health Sciences; Health Sciences Unit; University of Far Southern Santa Catarina; Criciúma Santa Catarina Brazil
| | - Giovana R. Teixeira
- Department of Physical Education; State University of São Paulo (UNESP); Presidente Prudente São Paulo Brazil
| | - Fábio S. Lira
- Department of Physical Education; State University of São Paulo (UNESP); Presidente Prudente São Paulo Brazil
| | - Dennys E. Cintra
- Sport Sciences Course; Faculty of Applied Sciences; State University of Campinas (UNICAMP); Limeira São Paulo Brazil
| | - Eduardo R. Ropelle
- Sport Sciences Course; Faculty of Applied Sciences; State University of Campinas (UNICAMP); Limeira São Paulo Brazil
| | - Carlos R.B. Júnior
- School of Physical Education and Sport of Ribeirão Preto; USP; Ribeirão Preto São Paulo Brazil
| | - Adelino S.R. da Silva
- Postgraduate Program in Rehabilitation and Functional Performance; Ribeirão Preto Medical School; University of São Paulo (USP); Ribeirão Preto São Paulo Brazil
- School of Physical Education and Sport of Ribeirão Preto; USP; Ribeirão Preto São Paulo Brazil
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Valvassori SS, Resende WR, Lopes-Borges J, Mariot E, Dal-Pont GC, Vitto MF, Luz G, de Souza CT, Quevedo J. Effects of mood stabilizers on oxidative stress-induced cell death signaling pathways in the brains of rats subjected to the ouabain-induced animal model of mania: Mood stabilizers exert protective effects against ouabain-induced activation of the cell death pathway. J Psychiatr Res 2015; 65:63-70. [PMID: 25959616 DOI: 10.1016/j.jpsychires.2015.04.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 03/01/2015] [Accepted: 04/09/2015] [Indexed: 01/04/2023]
Abstract
The present study aimed to investigate the effects of mood stabilizers, specifically lithium (Li) and valproate (VPA), on mitochondrial superoxide, lipid peroxidation, and proteins involved in cell death signaling pathways in the brains of rats subjected to the ouabain-induced animal model of mania. Wistar rats received Li, VPA, or saline twice a day for 13 days. On the 7th day of treatment, the animals received a single intracerebroventricular injection of ouabain or aCSF. After the ICV injection, the treatment with mood stabilizers continued for 6 additional days. The locomotor activity of rats was measured using the open-field test. In addition, we analyzed oxidative stress parameters, specifically levels of phosphorylated p53 (pp53), BAX and Bcl-2 in the brain of rats by immunoblot. Li and VPA reversed ouabain-related hyperactivity. Ouabain decreased Bcl-2 levels and increased the oxidative stress parameters BAX and pp53 in the brains of rats. Li and VPA improved these ouabain-induced cellular dysfunctions; however, the effects of the mood stabilizers were dependent on the protein and brain region analyzed. These findings suggest that the Na(+)/K(+)-ATPase can be an important link between oxidative damage and the consequent reduction of neuronal and glial density, which are both observed in BD, and that Li and VPA exert protective effects against ouabain-induced activation of the apoptosis pathway.
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Affiliation(s)
- Samira S Valvassori
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil.
| | - Wilson R Resende
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil
| | - Jéssica Lopes-Borges
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil
| | - Edemilson Mariot
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil
| | - Gustavo C Dal-Pont
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil
| | - Marcelo F Vitto
- Laboratory of Exercise Biochemistry and Physiology, Postgraduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Gabrielle Luz
- Laboratory of Exercise Biochemistry and Physiology, Postgraduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Claudio T de Souza
- Laboratory of Exercise Biochemistry and Physiology, Postgraduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - João Quevedo
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, 88806000, Brazil; Center for Experimental Models in Psychiatry, Department of Psychiatry and Behavioral Sciences, The University of Texas Medical School at Houston, Houston, TX, USA
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10
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Silva VRR, Micheletti TO, Pimentel GD, Katashima CK, Lenhare L, Morari J, Mendes MCS, Razolli DS, Rocha GZ, de Souza CT, Ryu D, Prada PO, Velloso LA, Carvalheira JBC, Pauli JR, Cintra DE, Ropelle ER. Hypothalamic S1P/S1PR1 axis controls energy homeostasis. Nat Commun 2014; 5:4859. [PMID: 25255053 DOI: 10.1038/ncomms5859] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/31/2014] [Indexed: 02/07/2023] Open
Abstract
Sphingosine 1-phosphate receptor 1 (S1PR1) is a G-protein-coupled receptor for sphingosine-1-phosphate (S1P) that has a role in many physiological and pathophysiological processes. Here we show that the S1P/S1PR1 signalling pathway in hypothalamic neurons regulates energy homeostasis in rodents. We demonstrate that S1PR1 protein is highly enriched in hypothalamic POMC neurons of rats. Intracerebroventricular injections of the bioactive lipid, S1P, reduce food consumption and increase rat energy expenditure through persistent activation of STAT3 and the melanocortin system. Similarly, the selective disruption of hypothalamic S1PR1 increases food intake and reduces the respiratory exchange ratio. We further show that STAT3 controls S1PR1 expression in neurons via a positive feedback mechanism. Interestingly, several models of obesity and cancer anorexia display an imbalance of hypothalamic S1P/S1PR1/STAT3 axis, whereas pharmacological intervention ameliorates these phenotypes. Taken together, our data demonstrate that the neuronal S1P/S1PR1/STAT3 signalling axis plays a critical role in the control of energy homeostasis in rats.
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Affiliation(s)
- Vagner R R Silva
- Laboratory of Molecular Biology of Exercise (LaBMEx). School of Applied Science, University of Campinas (UNICAMP), Rua Pedro Zaccarias, 1300, CEP 13484-350 Limeira, São Paulo, Brazil
| | - Thayana O Micheletti
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Gustavo D Pimentel
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Carlos K Katashima
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Luciene Lenhare
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Joseane Morari
- Laboratory of Cell Signalling, Faculty of Medical Sciences, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Maria Carolina S Mendes
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Daniela S Razolli
- Laboratory of Cell Signalling, Faculty of Medical Sciences, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Guilherme Z Rocha
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Claudio T de Souza
- Laboratory of Exercise Biochemistry and Physiology, Health Sciences Unit, University of Southern Santa Catarina, CEP 88806-000 Criciúma, Santa Catarina, Brazil
| | - Dongryeol Ryu
- Laboratory of Integrative and Systems Physiology, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Patrícia O Prada
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Lício A Velloso
- Laboratory of Cell Signalling, Faculty of Medical Sciences, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - José B C Carvalheira
- Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - José Rodrigo Pauli
- Laboratory of Molecular Biology of Exercise (LaBMEx). School of Applied Science, University of Campinas (UNICAMP), Rua Pedro Zaccarias, 1300, CEP 13484-350 Limeira, São Paulo, Brazil
| | - Dennys E Cintra
- 1] Laboratory of Molecular Biology of Exercise (LaBMEx). School of Applied Science, University of Campinas (UNICAMP), Rua Pedro Zaccarias, 1300, CEP 13484-350 Limeira, São Paulo, Brazil [2] Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil [3] Laboratory of Cell Signalling, Faculty of Medical Sciences, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
| | - Eduardo R Ropelle
- 1] Laboratory of Molecular Biology of Exercise (LaBMEx). School of Applied Science, University of Campinas (UNICAMP), Rua Pedro Zaccarias, 1300, CEP 13484-350 Limeira, São Paulo, Brazil [2] Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas (UNICAMP), CEP 13083-887 Campinas, São Paulo, Brazil
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Chiarreotto-Ropelle EC, Pauli LSS, Katashima CK, Pimentel GD, Picardi PK, Silva VRR, de Souza CT, Prada PO, Cintra DE, Carvalheira JBC, Ropelle ER, Pauli JR. Acute exercise suppresses hypothalamic PTP1B protein level and improves insulin and leptin signaling in obese rats. Am J Physiol Endocrinol Metab 2013; 305:E649-59. [PMID: 23880311 DOI: 10.1152/ajpendo.00272.2013] [Citation(s) in RCA: 25] [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] [Indexed: 12/19/2022]
Abstract
Hypothalamic inflammation is associated with insulin and leptin resistance, hyperphagia, and obesity. In this scenario, hypothalamic protein tyrosine phosphatase 1B (PTP1B) has emerged as the key phosphatase induced by inflammation that is responsible for the central insulin and leptin resistance. Here, we demonstrated that acute exercise reduced inflammation and PTP1B protein level/activity in the hypothalamus of obese rodents. Exercise disrupted the interaction between PTP1B with proteins involved in the early steps of insulin (IRβ and IRS-1) and leptin (JAK2) signaling, increased the tyrosine phosphorylation of these molecules, and restored the anorexigenic effects of insulin and leptin in obese rats. Interestingly, the anti-inflammatory action and the reduction of PTP1B activity mediated by exercise occurred in an interleukin-6 (IL-6)-dependent manner because exercise failed to reduce inflammation and PTP1B protein level after the disruption of hypothalamic-specific IL-6 action in obese rats. Conversely, intracerebroventricular administration of recombinant IL-6 reproduced the effects of exercise, improving hypothalamic insulin and leptin action by reducing the inflammatory signaling and PTP1B activity in obese rats at rest. Taken together, our study reports that physical exercise restores insulin and leptin signaling, at least in part, by reducing hypothalamic PTP1B protein level through the central anti-inflammatory response.
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Scheffer DL, Silva LA, Tromm CB, da Rosa GL, Silveira PC, de Souza CT, Latini A, Pinho RA. Impact of different resistance training protocols on muscular oxidative stress parameters. Appl Physiol Nutr Metab 2012; 37:1239-46. [DOI: 10.1139/h2012-115] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study analyzes oxidative stress in skeletal muscle using different resisted training protocols. We hypothesize that different types of training produce different specifics. To test our hypothesis, we defined 3 resistance training protocols and investigated the respective biochemical responses in muscle. Twenty-four male Wistar rats were distributed in 4 groups: untrained (UT), muscular resistance training (RT), hypertrophy training (HT), and strength training (ST). After 12 weeks of training on alternate days, the red portion of the brachioradialis was removed and the following parameters were assessed: lactate and glycogen content, superoxide production, antioxidant enzyme content, and activities (superoxide dismutase, SOD; catalase, CAT; GPx, glutathione peroxidase). Thiobarbituric acid-reactive substances (TBARS), carbonyl, and thiol groups were also measured. Results showed increased superoxide production (UT = 5.348 ± 0.889; RT = 5.117 ± 0,651; HT = 8.412 ± 0.431; ST = 6.354 ± 0.552), SOD (UT = 0.078 ± 0.0163; RT = 0.101 ± 0.013; HT = 0.533 ± 0.109; ST = 0.388 ± 0.058), GPx (UT = 0.290 ± 0.023; RT = 0.348 ± 0.014; HT = 0.529 ± 0.049; ST = 0.384 ± 0.038) activities, and content of GPx (HT = 3.8 times; ST = 3.0 times) compared with the UT group. CAT activity was lower (UT = 3.966 ± 0.670; RT = 3.474 ± 0.583; HT = 2.276 ± 0.302; ST = 2.028 ± 0.471) in HT and ST groups. Oxidative damage was observed in the HT group (TBARS = 0.082 ± 0.009; carbonyl = 0.73 ± 0.053; thiol = 12.78 ± 0.917) compared with the UT group. These findings indicate that HT causes an imbalance in oxidative parameters in favor of pro-oxidants, causing oxidative stress in skeletal muscle.
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Affiliation(s)
- Débora L. Scheffer
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
- Laboratório de Bioenergética e Estresse Oxidativo, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campos Universitário, Trindade, 88040-900, Florianópolis/SC, Brazil
| | - Luciano A. Silva
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
| | - Camila B. Tromm
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
| | - Guilherme L. da Rosa
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
| | - Paulo C.L. Silveira
- Laboratório de Bioenergética e Estresse Oxidativo, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campos Universitário, Trindade, 88040-900, Florianópolis/SC, Brazil
| | - Claudio T. de Souza
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
| | - Alexandra Latini
- Laboratório de Bioenergética e Estresse Oxidativo, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campos Universitário, Trindade, 88040-900, Florianópolis/SC, Brazil
| | - Ricardo A. Pinho
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Av Universitária 1105, Bairro Universitário, 88806-000, Criciúma/SC, Brazil
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Cechinel-Recco K, Valvassori SS, Varela RB, Resende WR, Arent CO, Vitto MF, Luz G, de Souza CT, Quevedo J. Lithium and tamoxifen modulate cellular plasticity cascades in animal model of mania. J Psychopharmacol 2012; 26:1594-604. [PMID: 23076832 DOI: 10.1177/0269881112463124] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [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] [Indexed: 01/09/2023]
Abstract
Lithium (Li) is the main mood stabilizer and acts on multiple biochemical targets, leading to neuronal plasticity. Several clinical studies have shown that tamoxifen (TMX) - a protein kinase C (PKC) inhibitor - has been effective in treating acute mania. The present study aims to evaluate the effects of TMX on biochemical targets of Li, such as glycogen synthase kinase-3β (GSK-3β), PKC, PKA, CREB, BDNF and NGF, in the brain of rats subjected to an animal model of mania induced by d-amphetamine (d-AMPH). Wistar rats were treated with d-AMPH (2mg/kg, once a day) or saline (Sal; NaCl 0.9%, w/v), Li (47.5 mg/kg, intraperitoneally (i.p.), twice a day) or TMX (1 mg/kg i.p., twice a day) or Sal in protocols of reversion and prevention treatment. Locomotor behavior was assessed using the open-field task, and protein levels were measured by immunoblot. Li and TMX reversed and prevented d-AMPH-induced hyperactivity. Western blot showed that d-AMPH significantly increased GSK-3 and PKC levels, and decreased pGSK-3, PKA, NGF, BDNF and CREB levels in the structures analyzed. Li and TMX were able to prevent and reverse these changes induced by d-AMPH in most structures evaluated. The present study demonstrated that the PKC inhibitor modulates the alterations in the behavior, neurotrophic and apoptosis pathway induced by d-AMPH, reinforcing the need for more studies of PKC as a possible target for treatment of bipolar disorder.
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Affiliation(s)
- Kelen Cechinel-Recco
- Laboratory of Neurosciences, National Institute for Translational Medicine, and Center of Excellence in Applied Neurosciences of Santa Catarina, Postgraduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
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Lira FS, Rosa JC, Pimentel GD, Santos RV, Carnier J, Sanches PL, de Piano A, de Souza CT, Tock L, Tufik S, de Mello MT, Seelaender M, Oller do Nascimento CM, Oyama LM, Dâmaso AR. Long-term interdisciplinary therapy reduces endotoxin level and insulin resistance in obese adolescents. Nutr J 2012; 11:74. [PMID: 22989045 PMCID: PMC3478966 DOI: 10.1186/1475-2891-11-74] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [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: 01/27/2012] [Accepted: 09/11/2012] [Indexed: 12/26/2022] Open
Abstract
AIM The purpose of the present study was to assess the dietary fat intake, glucose, insulin, Homeostasis model assessment for insulin resistance HOMA-IR, and endotoxin levels and correlate them with adipokine serum concentrations in obese adolescents who had been admitted to long-term interdisciplinary weight-loss therapy. DESIGN The present study was a longitudinal clinical intervention of interdisciplinary therapy. Adolescents (n = 18, aged 15-19 y) with a body mass index > 95th percentile were admitted and evaluated at baseline and again after 1 year of interdisciplinary therapy. We collected blood samples, and IL-6, adiponectin, and endotoxin concentrations were measured by ELISA. Food intake was measured using 3-day diet records. In addition, we assessed glucose and insulin levels as well as the homeostasis model assessment for insulin resistance (HOMA-IR). RESULTS The most important finding from the present investigation was that the long-term interdisciplinary lifestyle therapy decreased dietary fat intake and endotoxin levels and improved HOMA-IR. We observed positive correlations between dietary fat intake and endotoxin levels, insulin levels, and the HOMA-IR. In addition, endotoxin levels showed positive correlations with IL-6 levels, insulin levels and the HOMA-IR. Interestingly, we observed a negative correlation between serum adiponectin and both dietary fat intake and endotoxin levels. CONCLUSIONS The present results indicate an association between dietary fat intake and endotoxin level, which was highly correlated with a decreased pro-inflammatory state and an improvement in HOMA-IR. In addition, this benefits effect may be associated with an increased adiponectin level, which suggests that the interdisciplinary therapy was effective in improving inflammatory pathways.
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Affiliation(s)
- Fábio S Lira
- Departamento de Fisiologia, Rua Botucatu nº 862 Vila Clementino, São Paulo, Brazil.
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Victor EG, Silveira PCL, Possato JC, da Rosa GL, Munari UB, de Souza CT, Pinho RA, da Silva L, Streck EL, Paula MMS. Pulsed ultrasound associated with gold nanoparticle gel reduces oxidative stress parameters and expression of pro-inflammatory molecules in an animal model of muscle injury. J Nanobiotechnology 2012; 10:11. [PMID: 22410000 PMCID: PMC3325169 DOI: 10.1186/1477-3155-10-11] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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: 10/22/2011] [Accepted: 03/12/2012] [Indexed: 01/03/2023] Open
Abstract
Background Nanogold has been investigated in a wide variety of biomedical applications because of the anti-inflammatory properties. The purpose of this study was to evaluate the effects of TPU (Therapeutic Pulsed Ultrasound) with gold nanoparticles (GNP) on oxidative stress parameters and the expression of pro-inflammatory molecules after traumatic muscle injury. Materials and methods Animals were divided in nine groups: sham (uninjured muscle); muscle injury without treatment; muscle injury + DMSO; muscle injury + GNP; muscle injury + DMSO + GNP; muscle injury + TPU; muscle injury + TPU + DMSO; muscle injury + TPU + GNP; muscle injury + TPU + DMSO + GNP. The ROS production was determined by concentration of superoxide anion, modulation of antioxidant defenses was determined by the activity of superoxide dismutase, catalase and glutathione peroxidase enzymes, oxidative damage determined by formation of thiobarbituric acid-reactive substance and protein carbonyls. The levels of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) were measured as inflammatory parameters. Results Compared to muscle injury without treatment group, the muscle injury + TPU + DMSO + GNP gel group promoted a significant decrease in superoxide anion production and lipid peroxidation levels (p < 0.050). It also showed a significant decrease in TNF-α and IL-1β levels (p < 0.050) when compared to muscle injury without treatment group. Conclusions Our results suggest that TPU + DMSO + GNP gel presents beneficial effects on the muscular healing process, inducing a reduction in the production of ROS and also the expression of pro-inflammatory molecules.
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Affiliation(s)
- Eduardo G Victor
- Laboratory of Synthesis of Multifunctional Complexes, UNESC Av, Universitária, Bairro Universitário, Criciúma - SC, Brazil
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Cintra DE, Ropelle ER, Moraes JC, Pauli JR, Morari J, de Souza CT, Grimaldi R, Stahl M, Carvalheira JB, Saad MJ, Velloso LA. Unsaturated fatty acids revert diet-induced hypothalamic inflammation in obesity. PLoS One 2012; 7:e30571. [PMID: 22279596 PMCID: PMC3261210 DOI: 10.1371/journal.pone.0030571] [Citation(s) in RCA: 256] [Impact Index Per Article: 21.3] [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: 04/08/2011] [Accepted: 12/20/2011] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In experimental models, hypothalamic inflammation is an early and determining factor in the installation and progression of obesity. Pharmacological and gene-based approaches have proven efficient in restraining inflammation and correcting the obese phenotypes. However, the role of nutrients in the modulation of hypothalamic inflammation is unknown. METHODOLOGY/PRINCIPAL FINDINGS Here we show that, in a mouse model of diet-induced obesity, partial substitution of the fatty acid component of the diet by flax seed oil (rich in C18:3) or olive oil (rich in C18:1) corrects hypothalamic inflammation, hypothalamic and whole body insulin resistance, and body adiposity. In addition, upon icv injection in obese rats, both ω3 and ω9 pure fatty acids reduce spontaneous food intake and body mass gain. These effects are accompanied by the reversal of functional and molecular hypothalamic resistance to leptin/insulin and increased POMC and CART expressions. In addition, both, ω3 and ω9 fatty acids inhibit the AMPK/ACC pathway and increase CPT1 and SCD1 expression in the hypothalamus. Finally, acute hypothalamic injection of ω3 and ω9 fatty acids activate signal transduction through the recently identified GPR120 unsaturated fatty acid receptor. CONCLUSIONS/SIGNIFICANCE Unsaturated fatty acids can act either as nutrients or directly in the hypothalamus, reverting diet-induced inflammation and reducing body adiposity. These data show that, in addition to pharmacological and genetic approaches, nutrients can also be attractive candidates for controlling hypothalamic inflammation in obesity.
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Affiliation(s)
- Dennys E. Cintra
- Laboratory of Cell Signaling, University of Campinas, Campinas, Brazil
- Faculty of Applied Sciences, University of Campinas, Campinas, Brazil
| | - Eduardo R. Ropelle
- Department of Internal Medicine, University of Campinas, Campinas, Brazil
| | - Juliana C. Moraes
- Laboratory of Cell Signaling, University of Campinas, Campinas, Brazil
| | - José R. Pauli
- Department of Internal Medicine, University of Campinas, Campinas, Brazil
| | - Joseane Morari
- Laboratory of Cell Signaling, University of Campinas, Campinas, Brazil
| | | | - Renato Grimaldi
- Faculty of Food Engineering, University of Campinas, Campinas, Brazil
| | - Marcela Stahl
- Faculty of Food Engineering, University of Campinas, Campinas, Brazil
| | | | - Mario J. Saad
- Department of Internal Medicine, University of Campinas, Campinas, Brazil
| | - Licio A. Velloso
- Laboratory of Cell Signaling, University of Campinas, Campinas, Brazil
- Department of Internal Medicine, University of Campinas, Campinas, Brazil
- * E-mail:
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17
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Ropelle ER, Flores MB, Cintra DE, Rocha GZ, Pauli JR, Morari J, de Souza CT, Moraes JC, Prada PO, Guadagnini D, Marin RM, Oliveira AG, Augusto TM, Carvalho HF, Velloso LA, Saad MJA, Carvalheira JBC. IL-6 and IL-10 anti-inflammatory activity links exercise to hypothalamic insulin and leptin sensitivity through IKKbeta and ER stress inhibition. PLoS Biol 2010; 8:e1000465. [PMID: 20808781 PMCID: PMC2927536 DOI: 10.1371/journal.pbio.1000465] [Citation(s) in RCA: 241] [Impact Index Per Article: 17.2] [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: 10/23/2009] [Accepted: 07/15/2010] [Indexed: 02/07/2023] Open
Abstract
Overnutrition caused by overeating is associated with insulin and leptin resistance through IKKbeta activation and endoplasmic reticulum (ER) stress in the hypothalamus. Here we show that physical exercise suppresses hyperphagia and associated hypothalamic IKKbeta/NF-kappaB activation by a mechanism dependent upon the pro-inflammatory cytokine interleukin (IL)-6. The disruption of hypothalamic-specific IL-6 action blocked the beneficial effects of exercise on the re-balance of food intake and insulin and leptin resistance. This molecular mechanism, mediated by physical activity, involves the anti-inflammatory protein IL-10, a core inhibitor of IKKbeta/NF-kappaB signaling and ER stress. We report that exercise and recombinant IL-6 requires IL-10 expression to suppress hyperphagia-related obesity. Moreover, in contrast to control mice, exercise failed to reverse the pharmacological activation of IKKbeta and ER stress in C3H/HeJ mice deficient in hypothalamic IL-6 and IL-10 signaling. Hence, inflammatory signaling in the hypothalamus links beneficial physiological effects of exercise to the central action of insulin and leptin.
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Affiliation(s)
- Eduardo R. Ropelle
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Marcelo B. Flores
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Dennys E. Cintra
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Guilherme Z. Rocha
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - José R. Pauli
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Joseane Morari
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Claudio T. de Souza
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Juliana C. Moraes
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Patrícia O. Prada
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Dioze Guadagnini
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Rodrigo M. Marin
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Alexandre G. Oliveira
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Taize M. Augusto
- Department of Anatomy, Cell Biology, Physiology and Biophysics, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Hernandes F. Carvalho
- Department of Anatomy, Cell Biology, Physiology and Biophysics, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Lício A. Velloso
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Mario J. A. Saad
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - José B. C. Carvalheira
- Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
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Prada PO, Ropelle ER, Mourão RH, de Souza CT, Pauli JR, Cintra DE, Schenka A, Rocco SA, Rittner R, Franchini KG, Vassallo J, Velloso LA, Carvalheira JB, Saad MJ. EGFR tyrosine kinase inhibitor (PD153035) improves glucose tolerance and insulin action in high-fat diet-fed mice. Diabetes 2009; 58:2910-9. [PMID: 19696185 PMCID: PMC2780887 DOI: 10.2337/db08-0506] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE In obesity, an increased macrophage infiltration in adipose tissue occurs, contributing to low-grade inflammation and insulin resistance. Epidermal growth factor receptor (EGFR) mediates both chemotaxis and proliferation in monocytes and macrophages. However, the role of EGFR inhibitors in this subclinical inflammation has not yet been investigated. We investigated, herein, in vivo efficacy and associated molecular mechanisms by which PD153035, an EGFR tyrosine kinase inhibitor, improved diabetes control and insulin action. RESEARCH DESIGN AND METHODS The effect of PD153035 was investigated on insulin sensitivity, insulin signaling, and c-Jun NH(2)-terminal kinase (JNK) and nuclear factor (NF)-kappaB activity in tissues of high-fat diet (HFD)-fed mice and also on infiltration and the activation state of adipose tissue macrophages (ATMs) in these mice. RESULTS PD153035 treatment for 1 day decreased the protein expression of inducible nitric oxide synthase, tumor necrosis factor (TNF)-alpha, and interleukin (IL)-6 in the stroma vascular fraction, suggesting that this drug reduces the M1 proinflammatory state in ATMs, as an initial effect, in turn reducing the circulating levels of TNF-alpha and IL-6, and initiating an improvement in insulin signaling and sensitivity. After 14 days of drug administration, there was a marked improvement in glucose tolerance; a reduction in insulin resistance; a reduction in macrophage infiltration in adipose tissue and in TNF-alpha, IL-6, and free fatty acids; accompanied by an improvement in insulin signaling in liver, muscle, and adipose tissue; and also a decrease in insulin receptor substrate-1 Ser(307) phosphorylation in JNK and inhibitor of NF-kappaB kinase (IKKbeta) activation in these tissues. CONCLUSIONS Treatment with PD153035 improves glucose tolerance, insulin sensitivity, and signaling and reduces subclinical inflammation in HFD-fed mice.
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Affiliation(s)
- Patricia O. Prada
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Eduardo R. Ropelle
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Rosa H. Mourão
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Claudio T. de Souza
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Jose R. Pauli
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Dennys E. Cintra
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - André Schenka
- Chemistry Institute, State University of Campinas, Campinas, Brazil
| | - Silvana A. Rocco
- Department of Pathology, State University of Campinas, Campinas, Brazil
| | - Roberto Rittner
- Department of Pathology, State University of Campinas, Campinas, Brazil
| | - Kleber G. Franchini
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - José Vassallo
- Chemistry Institute, State University of Campinas, Campinas, Brazil
| | - Lício A. Velloso
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - José B. Carvalheira
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Mario J.A. Saad
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
- Corresponding author: Mario J.A. Saad,
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