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Maia RDCA, Lima TC, Barbosa CM, Barbosa MA, de Queiroz KB, Alzamora AC. Intergenerational inheritance induced by a high-fat diet causes hyperphagia and reduced hypothalamic sensitivity to insulin and leptin in the second-generation of rats. Nutrition 2024; 120:112333. [PMID: 38271759 DOI: 10.1016/j.nut.2023.112333] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/16/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024]
Abstract
OBJECTIVE The aim was to investigate the intergenerational inheritance induced by a high-fat diet on sensitivity to insulin and leptin in the hypothalamic control of satiety in second-generation offspring, which were fed a control diet. METHODS Progenitor rats were fed a high-fat or a control diet for 59 d until weaning. The first-generation and second-generation offspring were fed the control diet until 90 d of age. Body mass and adiposity index of the progenitors fed the high-fat diet and the second-generation offspring from progenitors fed the high-fat diet were evaluated as were the gene expression of DNA methyltransferase 3a, angiotensin-converting enzyme type 2, angiotensin II type 2 receptor, insulin and leptin signaling pathway (insulin receptor, leptin receptor, insulin receptor substrate 2, protein kinase B, signal transducer and transcriptional activator 3, pro-opiomelanocortin, and neuropeptide Agouti-related protein), superoxide dismutase activity, and the concentration of carbonyl protein and satiety-regulating neuropeptides, pro-opiomelanocortin and neuropeptide Agouti-related protein, in the hypothalamus. RESULTS The progenitor group fed a high-fat diet showed increased insulin resistance and reduced insulin-secreting beta-cell function and reduced food intake, without changes in caloric intake. The second-generation offspring from progenitors fed a high-fat diet, compared with second-generation offspring from progenitors fed a control diet group, had decreased insulin-secreting beta-cell function and increased food and caloric intake, insulin resistance, body mass, and adiposity index. Furthermore, second-generation offspring from progenitors fed a high-fat diet had increased DNA methyltransferase 3a, neuropeptide Agouti-related protein, angiotensin II type 1 receptor, and nicotinamide adenine dinucleotide phosphate oxidase p47phox gene expression, superoxide dismutase activity, and neuropeptide Agouti-related protein concentration in the hypothalamus. In addition, there were reduced in gene expression of the insulin receptor, leptin receptor, insulin receptor substrate 2, pro-opiomelanocortin, angiotensin II type 2 receptor, angiotensin-converting enzyme type 2, and angiotensin-(1-7) receptor and pro-opiomelanocortin concentration in the second-generation offspring from progenitors fed the high-fat diet. CONCLUSIONS Overall, progenitors fed a high-fat diet induced changes in the hypothalamic control of satiety of the second-generation offspring from progenitors fed the high-fat diet through intergenerational inheritance. These changes led to hyperphagia, alterations in the hypothalamic pathways of insulin, and leptin and adiposity index increase, favoring the occurrence of different cardiometabolic disorders in the second-generation offspring from progenitors fed the high-fat diet fed only with the control diet.
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Affiliation(s)
- Rosana da Conceição Araújo Maia
- Núcleo de Pesquisa em Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Taynara Carolina Lima
- Núcleo de Pesquisa em Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Claudiane Maria Barbosa
- Núcleo de Pesquisa em Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Maria Andréa Barbosa
- Núcleo de Pesquisa em Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Karina Barbosa de Queiroz
- Departamento de Alimentos, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Andréia Carvalho Alzamora
- Núcleo de Pesquisa em Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil; Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
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Cassiano LMG, Oliveira MDS, de Queiroz KB, Amancio AMTDS, Salim ACDM, Fernandes GDR, Carneiro CM, Coimbra RS. Uncovering the neuroprotective effect of vitamin B12 in pneumococcal meningitis: insights into its pleiotropic mode of action at the transcriptional level. Front Immunol 2023; 14:1250055. [PMID: 37854591 PMCID: PMC10579599 DOI: 10.3389/fimmu.2023.1250055] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/22/2023] [Indexed: 10/20/2023] Open
Abstract
Background The interplay between bacterial virulence factors and the host innate immune response in pneumococcal meningitis (PM) can result in uncontrolled neuroinflammation, which is known to induce apoptotic death of progenitor cells and post-mitotic neurons in the hippocampal dentate gyrus, resulting in cognitive impairment. Vitamin B12 attenuates hippocampal damage and reduces the expression of some key inflammatory genes in PM, by acting as an epidrug that promotes DNA methylation, with increased production of S-adenosyl-methionine, the universal donor of methyl. Material and methods Eleven-day-old rats were infected with S. pneumoniae via intracisternal injection and then administered either vitamin B12 or a placebo. After 24 hours of infection, the animals were euthanized, and apoptosis in the hippocampal dentate gyrus, microglia activation, and the inflammatory infiltrate were quantified in one brain hemisphere. The other hemisphere was used for RNA-Seq and RT-qPCR analysis. Results In this study, adjuvant therapy with B12 was found to modulate the hippocampal transcriptional signature induced by PM in infant rats, mitigating the effects of the disease in canonical pathways related to the recognition of pathogens by immune cells, signaling via NF-kB, production of pro-inflammatory cytokines, migration of peripheral leukocytes into the central nervous system, and production of reactive species. Phenotypic analysis revealed that B12 effectively inhibited microglia activation in the hippocampus and reduced the inflammatory infiltrate in the central nervous system of the infected animals. These pleiotropic transcriptional effects of B12 that lead to neuroprotection are partly regulated by alterations in histone methylation markings. No adverse effects of B12 were predicted or observed, reinforcing the well-established safety profile of this epidrug. Conclusion B12 effectively mitigates the impact of PM on pivotal neuroinflammatory pathways. This leads to reduced microglia activation and inflammatory infiltrate within the central nervous system, resulting in the attenuation of hippocampal damage. The anti-inflammatory and neuroprotective effects of B12 involve the modulation of histone markings in hippocampal neural cells.
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Affiliation(s)
- Larissa Marcely Gomes Cassiano
- Neurogenômica, Imunopatologia, Instituto René Rachou (IRR), Fiocruz, Belo Horizonte, MG, Brazil
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | | | | | - Anna Christina de Matos Salim
- Plataforma Tecnológica de Sequenciamento NGS (Next Generation Sequencing), Instituto René Rachou (IRR), Fiocruz, Belo Horizonte, MG, Brazil
| | - Gabriel da Rocha Fernandes
- Plataforma Tecnológica de Bioinformática, Instituto René Rachou (IRR), Fiocruz, Belo Horizonte, MG, Brazil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Roney Santos Coimbra
- Neurogenômica, Imunopatologia, Instituto René Rachou (IRR), Fiocruz, Belo Horizonte, MG, Brazil
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de Deus IJ, Martins-Silva AF, Fagundes MMDA, Paula-Gomes S, Silva FGDE, da Cruz LL, de Abreu ARR, de Queiroz KB. Role of NLRP3 inflammasome and oxidative stress in hepatic insulin resistance and the ameliorative effect of phytochemical intervention. Front Pharmacol 2023; 14:1188829. [PMID: 37456758 PMCID: PMC10347376 DOI: 10.3389/fphar.2023.1188829] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
NLRP3 inflammasome has a key role in chronic low-grade metabolic inflammation, and its excessive activation may contribute to the beginning and progression of several diseases, including hepatic insulin resistance (hIR). Thus, this review aims to highlight the role of NLRP3 inflammasome and oxidative stress in the development of hIR and evidence related to phytochemical intervention in this context. In this review, we will address the hIR pathogenesis related to reactive oxygen species (ROS) production mechanisms, involving oxidized mitochondrial DNA (ox-mtDNA) and thioredoxin interacting protein (TXNIP) induction in the NLRP3 inflammasome activation. Moreover, we discuss the inhibitory effect of bioactive compounds on the insulin signaling pathway, and the role of microRNAs (miRNAs) in the phytochemical target mechanism in ameliorating hIR. Although most of the research in the field has been focused on evaluating the inhibitory effect of phytochemicals on the NLRP3 inflammasome pathway, further investigation and clinical studies are required to provide insights into the mechanisms of action, and, thus, encourage the use of these bioactive compounds as an additional therapeutic strategy to improve hIR and correlated conditions.
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Affiliation(s)
- Isabela Jesus de Deus
- Laboratório de Nutrição Experimental, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Ana Flávia Martins-Silva
- Laboratório de Nutrição Experimental, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Miliane Martins de Andrade Fagundes
- Laboratório de Nutrição Experimental, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Departamento de Alimentos, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Sílvia Paula-Gomes
- Laboratório de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Fernanda Guimarães Drummond e Silva
- Departamento de Alimentos, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | | | - Aline Rezende Ribeiro de Abreu
- Laboratório de Nutrição Experimental, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Karina Barbosa de Queiroz
- Laboratório de Nutrição Experimental, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Departamento de Alimentos, Programa de Pós-Graduação em Saúde e Nutrição, Escola de Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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Baleeiro RDS, Guimarães AP, de Souza PM, Andrade RDS, Barbosa de Queiroz K, Coelho DB, de Oliveira EC, Becker LK. Sucrose-Sweetened Drinks Reduce the Physical Performance and Increase the Cardiovascular Risk in Physically Active Males. J Nutr Metab 2021; 2021:6683657. [PMID: 33763239 PMCID: PMC7964112 DOI: 10.1155/2021/6683657] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/28/2021] [Accepted: 02/20/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The intake of sugar-sweetened beverages (SSBs) has increased rapidly, but the effects of this habit on health and physical performance are unknown. This study assessed the effect of excessive SSB intake on biochemical, physical performance, and biochemical and cardiovascular parameters of physically active males. METHODS Seventeen volunteers consumed a placebo drink (Pd; carbohydrate free) and an excessive SSB drink (eSSBd = Pd plus 300 g sucrose). In a blind randomized crossover study, the subjects were assigned to Pd or eSSBd groups for 15 days. After an interval of 7 days, subjects were reassigned to the other condition. RESULTS After eSSBd intake, there was an increase in weight (69.34 ± 13.71 vs. 70.62 ± 14.06), body mass index (24.49 ± 4.01 vs. 24.97 ± 4.13), waist circumference (75.33 ± 11.22 vs. 76.79 ± 11.51), VLDL (19.54 ± 9.50 vs. 25.52 ± 11.18), triglycerides (78.94 ± 23.79 vs. 114.77 ± 43.65), and peak systolic blood pressure (178.57 ± 26.56 vs. 200.71 ± 24.64). The cardiorespiratory response to exercise (VO2max) (48.15 ± 10.42 vs. 40.98 ± 11.20), peak heart rate (186.64 ± 8.00 vs. 179.64 ± 6.28), total exercise time (15.02 ± 1.57 vs. 14.00 ± 2.18), and mechanical work (15.83 ± 4.53 vs. 13.68 ± 5.67) decreased after eSSBd intake (all values expressed in initial mean ± DP vs. final). The rates of perceived exertion were higher (1.300 vs.1.661 slope and -0.7186 vs. -1.118 y-intercept) after eSSBd intake. CONCLUSION The present study shows that 15 days of eSSBd intake may negatively modulate biochemical parameters associated with cardiovascular risk. In addition, this overintake can impair the physical performance and cardiovascular responses to physical exercise.
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Affiliation(s)
- Raianne dos Santos Baleeiro
- Health and Nutrition, PPGSN, Research Center in Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Aparecida Patricia Guimarães
- Health and Nutrition, PPGSN, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Perciliany Martins de Souza
- Research Center in Biological Sciences, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Rafael da Silva Andrade
- Health and Nutrition, PPGSN, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Karina Barbosa de Queiroz
- Health and Nutrition, PPGSN, Food Department, Nutrition School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Daniel Barbosa Coelho
- Health and Nutrition, PPGSN, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Emerson Cruz de Oliveira
- Health and Nutrition, PPGSN, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Lenice Kappes Becker
- Health and Nutrition, PPGSN, Physical Education Department, Physical Education School, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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de Queiroz KB, Cavalcante-Silva V, Lopes FL, Rocha GA, D'Almeida V, Coimbra RS. Vitamin B 12 is neuroprotective in experimental pneumococcal meningitis through modulation of hippocampal DNA methylation. J Neuroinflammation 2020; 17:96. [PMID: 32238192 PMCID: PMC7115084 DOI: 10.1186/s12974-020-01763-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 10/25/2019] [Accepted: 02/27/2020] [Indexed: 02/08/2023] Open
Abstract
Background Bacterial meningitis (BM) causes apoptotic damage to the hippocampus and homocysteine (Hcy) accumulation to neurotoxic levels in the cerebrospinal fluid of children. The Hcy pathway controls bioavailability of methyl, and its homeostasis can be modulated by vitamin B12, a cofactor of the methionine synthase enzyme. Herein, the neuroprotective potential and the underlying mode of action of vitamin B12 adjuvant therapy were assessed in an infant rat model of BM. Methods Eleven-day old rats were intracysternally infected with Streptococcus pneumoniae serotype 3, or saline, treated with B12 or placebo, and, 24 h after infection, their hippocampi were analyzed for apoptosis in the dentate gyrus, sulfur amino acids content, global DNA methylation, transcription, and proximal promoter methylation of candidate genes. Differences between groups were compared using 2-way ANOVA followed by Bonferroni post hoc test. Correlations were tested with Spearman’s test. Results B12 attenuated BM-induced hippocampal apoptosis in a Hcy-dependent manner (r = 0.80, P < 0.05). BM caused global DNA hypomethylation; however, B12 restored this parameter. Accordingly, B12 increased the methylation capacity of hippocampal cells from infected animals, as inferred from the ratio S-adenosylmethionine (SAM):S-adenosylhomocysteine (SAH) in infected animals. BM upregulated selected pro-inflammatory genes, and this effect was counteracted by B12, which also increased methylation of CpGs at the promoter of Ccl3 of infected animals. Conclusion Hcy is likely to play a central role in hippocampal damage in the infant rat model of BM, and B12 shows an anti-inflammatory and neuroprotective action through methyl-dependent epigenetic mechanisms.
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Affiliation(s)
- Karina Barbosa de Queiroz
- Neurogenômica/Imunopatologia, Instituto René Rachou (IRR), Fundação Oswaldo Cruz (FIOCRUZ), Av. Augusto de Lima, 1715, Belo Horizonte, MG, CEP 30190-002, Brazil
| | - Vanessa Cavalcante-Silva
- Departamento de Psicobiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP-EPM), Rua Botucatu, 740, São Paulo, SP, CEP 04023-062, Brazil
| | - Flávia Lombardi Lopes
- Faculdade de Medicina Veterinária de Araçatuba, Universidade Estadual Paulista (UNESP), R. Clóvis Pestana, 793, Araçatuba, SP, CEP 16050-680, Brazil
| | - Gifone Aguiar Rocha
- Laboratório de Pesquisa em Bacteriologia, Departamento de Propedêutica Complementar, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Av. Prof. Alfredo Balena, 190, Belo Horizonte, MG, CEP 30130-100, Brazil
| | - Vânia D'Almeida
- Departamento de Psicobiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP-EPM), Rua Botucatu, 740, São Paulo, SP, CEP 04023-062, Brazil
| | - Roney Santos Coimbra
- Neurogenômica/Imunopatologia, Instituto René Rachou (IRR), Fundação Oswaldo Cruz (FIOCRUZ), Av. Augusto de Lima, 1715, Belo Horizonte, MG, CEP 30190-002, Brazil.
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Gomes SV, Dias BV, Pereira RR, de Pádua Lúcio K, de Souza DMS, Talvani A, Brandão GC, Cosenza GP, de Queiroz KB, Costa DC. Different source of commercial vegetable oils may regulate metabolic, inflammatory and redox status in healthy rats. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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de Queiroz KB, dos Santos Fontes Pereira T, Araújo MSS, Gomez RS, Coimbra RS. Resveratrol Acts Anti-Inflammatory and Neuroprotective in an Infant Rat Model of Pneumococcal Meningitis by Modulating the Hippocampal miRNome. Mol Neurobiol 2018; 55:8869-8884. [DOI: 10.1007/s12035-018-1037-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 03/23/2018] [Indexed: 12/21/2022]
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Barbosa de Queiroz K, Honorato-Sampaio K, Rossoni Júnior JV, Andrade Leal D, Pinto ABG, Kappes-Becker L, Evangelista EA, Guerra-Sá R. Physical activity prevents alterations in mitochondrial ultrastructure and glucometabolic parameters in a high-sugar diet model. PLoS One 2017; 12:e0172103. [PMID: 28199417 PMCID: PMC5310863 DOI: 10.1371/journal.pone.0172103] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 08/29/2016] [Accepted: 01/31/2017] [Indexed: 11/19/2022] Open
Abstract
Endurance exercise is a remarkable intervention for the treatment of many diseases. Mitochondrial changes on skeletal muscle are likely important for many of the benefits provided by exercise. In this study, we aimed to evaluate the effects that a regular physical activity (swimming without workload) has on mitochondrial morphological alterations and glucometabolic parameters induced by a high-sugar diet (HSD). Weaned male Wistar rats fed with a standard diet or a HSD (68% carbohydrate) were subjected to 60 minutes of regular physical activity by swimming (without workload) for four- (20 sessions) or eight-week (40 sessions) periods. After training, animals were euthanized and the sera, adipose tissues, and skeletal muscles were collected for further analysis. The HSD increased body weight after an 8-week period; it also increased the fat pads and the adipose index, resulting in glucose intolerance and insulin resistance (IR). Transmission electron microscopy showed an increase in alterations of mitochondrial ultrastructure in the gastrocnemius muscle, as well as a decrease in superoxide dismutase (SOD) activity, and an increase in protein carbonylation. Regular physical activity partially reverted these alterations in rats fed a HSD, preventing mitochondrial morphological alterations and IR. Moreover, we observed a decrease in Pgc1α expression (qPCR analysis) in STD-EXE group and a less pronounced reduction in HSD-EXE group after an 8-week period. Thus, regular physical activity (swimming without workload) in rats fed a HSD can prevent mitochondrial dysfunction and IR, highlighting the crucial role for physical activity on metabolic homeostasis.
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Affiliation(s)
- Karina Barbosa de Queiroz
- Laboratório de Bioquímica e Biologia Molecular, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
- * E-mail:
| | - Kinulpe Honorato-Sampaio
- Faculdade de Medicina, Campus JK, Universidade Federal dos Vales Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brasil
| | - Joamyr Victor Rossoni Júnior
- Laboratório de Bioquímica Metabólica, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Diego Andrade Leal
- Laboratório de Bioquímica e Biologia Molecular, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | | | - Lenice Kappes-Becker
- Centro de Esportes, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Elisio Alberto Evangelista
- Laboratório de Bioquímica e Biologia Molecular, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Renata Guerra-Sá
- Laboratório de Bioquímica e Biologia Molecular, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
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de Queiroz KB, Coimbra RS, Ferreira AR, Carneiro CM, Paiva NCN, Costa DC, Evangelista EA, Guerra-Sá R. Molecular mechanism driving retroperitoneal adipocyte hypertrophy and hyperplasia in response to a high-sugar diet. Mol Nutr Food Res 2014; 58:2331-41. [DOI: 10.1002/mnfr.201400241] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 08/12/2014] [Accepted: 08/20/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Karina Barbosa de Queiroz
- Laboratório de Bioquímica e Biologia Molecular; Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Roney Santos Coimbra
- Informática de Biossistemas; Centro de Pesquisas René Rachou, FIOCRUZ; Belo Horizonte Brasil
| | - Amanda Rios Ferreira
- Laboratório de Bioquímica e Biologia Molecular; Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Nívia Carolina Nogueira Paiva
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Daniela Caldeira Costa
- Laboratório de Bioquímica e Biologia Molecular; Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Elísio Alberto Evangelista
- Laboratório de Bioquímica e Biologia Molecular; Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
| | - Renata Guerra-Sá
- Laboratório de Bioquímica e Biologia Molecular; Núcleo de Pesquisas em Ciências Biológicas; Universidade Federal de Ouro Preto; Ouro Preto Brasil
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de Queiroz KB, Rodovalho GV, Guimarães JB, de Lima DC, Coimbra CC, Evangelista EA, Guerra-Sá R. Endurance training blocks uncoupling protein 1 up-regulation in brown adipose tissue while increasing uncoupling protein 3 in the muscle tissue of rats fed with a high-sugar diet. Nutr Res 2012; 32:709-17. [PMID: 23084644 DOI: 10.1016/j.nutres.2012.06.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 06/16/2012] [Accepted: 06/29/2012] [Indexed: 10/27/2022]
Abstract
The mitochondrial uncoupling proteins (UCPs) of interscapular brown adipose tissue (iBAT) and of muscles play important roles in energy balance. For instance, the expression of UCP1 and UCP3 are modulated by free fatty acid gradients induced by high-sugar diets and acute exercise that is dependent on sympathetic stimulation. However, the effects of endurance training in animals fed with high-sugar diets are unknown. This study aims to evaluate the long-term effects of diet and exercise on UCP1 and UCP3 levels and energy balance efficiency. Rats fed with standard or high-sugar (HSD) diets were simultaneously subjected to running training over an 8-week period. After the training period, the rats were decapitated, and the iBAT and gastrocnemius muscle tissues were removed for evaluation of the β₃-receptor, Ucp1, and Ucp3 mRNA and protein expression, which were analyzed by quantitative reverse transcriptase polymerase chain reaction and Western blot, respectively. Groups fed with an HSD displayed a higher adiposity index and iBAT weight (P < .05), whereas exhibited an up-regulation of Ucp1 mRNA and protein levels (P < .05). Training increased β₃-receptor mRNA in iBAT and reduced the Ucp3 mRNA in muscle tissues. In association with an HSD, training restored the increasing β₃-receptor mRNA and greatly up-regulated the levels of Ucp3 mRNA. Therefore, training blocked the HSD-induced up-regulation of UCP1 expression in iBAT, whereas it up-regulated the expression of Ucp3 mRNA in muscle. These results suggest that training enhances the relationship between Ucp1/Ucp3 mRNA levels, which could result in higher energy efficiency, but not when HSD-induced elevated sympathetic activity is maintained.
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Affiliation(s)
- Karina Barbosa de Queiroz
- Departmento de Ciências Biológicas-NUPEB, Laboratório de Bioquímica e Biologia Molecular, ICEB-Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
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