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Ribeiro Pontes CN, de Sá Martins de Bessa A, Macedo LM, Ferreira-Junior MD, Naves Cavalcante KV, Campos HM, Milhomem Cruz-Leite VR, Neves ÂR, Gomes RM, Ghedini PC, Biancardi MF, Mendes EP, Borges CL, Pedrino GR, Castro CH. ANGIOTENSIN-(1-7) TREATMENT EARLY IN LIFE PREVENTS CARDIAC HYPERTROPHY IN ADULT HYPERTENSIVE RATS. J Cardiovasc Pharmacol 2024:00005344-990000000-00296. [PMID: 38498600 DOI: 10.1097/fjc.0000000000001530] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Angiotensin (Ang)-(1-7) is a cardioprotective peptide of the renin-angiotensin system. Pre-puberty has been considered as a later susceptible window of development and stressful factors in this life phase can induce chronic diseases in adulthood. We aimed to investigate whether the treatment with Ang-(1-7) during the pre-puberty could attenuate the development of hypertension and cardiac injury in adult spontaneously hypertensive rats (SHR). SHR were treated with Ang-(1-7) (24 μg/Kg/h) from 4 to 7 weeks of age. Systolic blood pressure (SBP) was measured by tail-cuff plethysmography up to 17th of age. Thereafter, echocardiography was performed and the rats were euthanized for aorta reactivity assay and tissues and blood collections. Ang- (1-7) did not change the SBP and aortic reactivity but reduced the septal and posterior wall thickness, cardiomyocyte hypertrophy and fibrosis in SHR. Additionally, Ang-(1-7) reduced the gene expression of ANP and BNP, increased the metalloproteinase 9 expression, and reduced the ERK 1/2 phosphorylation. Ang-(1-7) also prevented the reduction of Mas receptor but did not change the protein expression of ACE2, ACE, AT1, and AT2. The treatment with Ang-(1-7) decreased the MDA levels and increased SOD-1 and catalase activity and protein expression of catalase. Our findings demonstrate that the treatment of SHR with Ang-(1-7) for three weeks early in life promotes beneficial effects in the heart later in life, even without altering blood pressure, through mechanisms involving the reduction of oxidative stress and ERK1/2 phosphorylation. Additionally, this study supports the pre-puberty as an important programming window.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Clayton Luiz Borges
- Department of Biochemistry and Molecular Biology, Federal University of Goiás, Goiânia, Brazil, 74690-900
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Dos Santos BG, Miranda RA, Saavedra LPJ, Francisco FA, Ribeiro MVG, Oliveira Ferreira AR, Ferreira-Junior MD, Cavalcante KVN, Xavier CH, de Moura EG, Lisboa PC, Mota APCD, Pedrino GR, Armitage JA, Mathias PCDF, Palma-Rigo K, Gomes RM. Puberty as a DOHaD programming window: high-fat diet induces long-term hepatic dysfunction in male rats. J Dev Orig Health Dis 2023; 14:614-622. [PMID: 37955113 DOI: 10.1017/s2040174423000272] [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] [Indexed: 11/14/2023]
Abstract
The aim of this study was to evaluate whether high-fat (HF) diet intake during puberty can program obesity as well as generate glucose imbalance and hepatic metabolic dysfunctions in adult life. Male Wistar rats were randomly assigned into two groups: rats fed standard chow (NF) and rats fed a HF from postnatal 30-day-old (PND30) until PND60. Then, both groups were fed a standard chow from PND60 until PND120. Euthanasia and samples collections occurred at PND120. HF animals were overweight (+11%) and had increased adiposity, hyperphagia (+12%), hyperglycaemia (+13%), hyperinsulinemia (+69%), and hypertriglyceridemia (+34%). Plasma glucose levels during intravenous glucose tolerance test (ivGTT) and intraperitoneal insulin tolerance test (ipITT) were also higher in the HF group, whereas Kitt was significantly lower (-34%), suggesting reduced insulin sensitivity. In the same sense, HF animals present pancreatic islets hypertrophy and high β-cell mass. HF animals also had a significant increase in blood glucose levels during pyruvate tolerance test, indicating increased gluconeogenesis. Hepatic morphology analyses showed an increase in lipid inclusion in the HF group. Moreover, PEPCK and FAS protein expression were higher in the livers of the HF animals (+79% and + 37%, respectively). In conclusion, HF during puberty causes obese phenotype leading to glucose dyshomeostasis and nonalcoholic fatty liver disease, which can be related to the overexpression of proteins PEPCK and FAS.
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Affiliation(s)
- Beatriz Gonçalves Dos Santos
- Department of Physiological Sciences, Laboratory of Endocrine Physiology and Metabolism, Federal University of Goiás, Goiânia, GO, Brazil
| | - Rosiane Aparecida Miranda
- Department of Physiological Sciences, Laboratory of Endocrine Physiology, Institute of Biology Roberto Alcantara Gomes, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Flávio Andrade Francisco
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Maiara Vanusa Guedes Ribeiro
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Anna Rebeka Oliveira Ferreira
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Marcos Divino Ferreira-Junior
- Department of Physiological Sciences, Laboratory of Endocrine Physiology and Metabolism, Federal University of Goiás, Goiânia, GO, Brazil
| | - Keilah Valéria Naves Cavalcante
- Department of Physiological Sciences, Laboratory of Endocrine Physiology and Metabolism, Federal University of Goiás, Goiânia, GO, Brazil
| | | | - Egberto Gaspar de Moura
- Department of Physiological Sciences, Laboratory of Endocrine Physiology, Institute of Biology Roberto Alcantara Gomes, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Patrícia Cristina Lisboa
- Department of Physiological Sciences, Laboratory of Endocrine Physiology, Institute of Biology Roberto Alcantara Gomes, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Ariel Penha Carvalho da Mota
- Department of Physiological Sciences, Laboratory of Endocrine Physiology and Metabolism, Federal University of Goiás, Goiânia, GO, Brazil
| | | | | | - Paulo Cezar de Freitas Mathias
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Kesia Palma-Rigo
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Brazil
| | - Rodrigo Mello Gomes
- Department of Physiological Sciences, Laboratory of Endocrine Physiology and Metabolism, Federal University of Goiás, Goiânia, GO, Brazil
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Amaro A, Sousa D, Sá-Rocha M, Ferreira-Junior MD, Rosendo-Silva D, Saavedra LPJ, Barra C, Monteiro-Alfredo T, Gomes RM, de Freitas Mathias PC, Baptista FI, Matafome P. Postnatal Overfeeding in Rodents Induces a Neurodevelopment Delay and Anxious-like Behaviour Accompanied by Sex- and Brain-Region-Specific Synaptic and Metabolic Changes. Nutrients 2023; 15:3581. [PMID: 37630771 PMCID: PMC10459868 DOI: 10.3390/nu15163581] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/04/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
Nutritional disturbances during the early postnatal period can have long-lasting effects on neurodevelopment and may be related to behavioural changes at adulthood. While such neuronal connection disruption can contribute to social and behaviour alterations, the dysregulation of the neuroendocrine pathways involved in nutrient-sensing balance may also cause such impairments, although the underlying mechanisms are still unclear. We aimed to evaluate sex-specific neurodevelopmental and behavioural changes upon postnatal overfeeding and determine the potential underpinning mechanisms at the central nervous system level, with a focus on the interconnection between synaptic and neuroendocrine molecular alterations. At postnatal day 3 (PND3) litters were culled to three animals (small litter procedure). Neurodevelopmental tests were conducted at infancy, whereas behavioural tests to assess locomotion, anxiety, and memory were performed at adolescence, together with molecular analysis of the hippocampus, hypothalamus, and prefrontal cortex. At infancy, females presented impaired acquisition of an auditory response, eye opening, olfactory discrimination, and vestibular system development, suggesting that female offspring neurodevelopment/maturation was deeply affected. Male offspring presented a transitory delay in locomotor performance., while both offspring had lower upper limb strength. At adolescence, both sexes presented anxious-like behaviour without alterations in short-term memory retention. Both males and females presented lower NPY1R levels in a region-specific manner. Furthermore, both sexes presented synaptic changes in the hippocampus (lower GABAA in females and higher GABAA levels in males), while, in the prefrontal cortex, similar higher GABAA receptor levels were observed. At the hypothalamus, females presented synaptic changes, namely higher vGLUT1 and PSD95 levels. Thus, we demonstrate that postnatal overfeeding modulates offspring behaviour and dysregulates nutrient-sensing mechanisms such as NPY and GABA in a sex- and brain-region-specific manner.
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Affiliation(s)
- Andreia Amaro
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Diana Sousa
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Mariana Sá-Rocha
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Marcos Divino Ferreira-Junior
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Department of Physiological Sciences, Institute of Biological Sciences, University Federal of Goiás, Goiânia 74690-900, Brazil;
| | - Daniela Rosendo-Silva
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa 87020-900, Brazil; (L.P.J.S.); (P.C.d.F.M.)
| | - Cátia Barra
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
- Internal Medicine Department, University Hospital Center of Coimbra, 3004-561 Coimbra, Portugal
| | - Tamaeh Monteiro-Alfredo
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Rodrigo Mello Gomes
- Department of Physiological Sciences, Institute of Biological Sciences, University Federal of Goiás, Goiânia 74690-900, Brazil;
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa 87020-900, Brazil; (L.P.J.S.); (P.C.d.F.M.)
| | - Filipa I. Baptista
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
| | - Paulo Matafome
- Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.A.); (D.S.); (M.S.-R.); (M.D.F.-J.); (D.R.-S.); (C.B.); (F.I.B.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-061 Coimbra, Portugal
- Coimbra Health School (EsTeSC), Polytechnic University of Coimbra, 3046-854 Coimbra, Portugal
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Amaro A, Sousa D, Sá-Rocha M, Ferreira-Júnior MD, Barra C, Monteiro T, Mathias P, Gomes RM, Baptista FI, Matafome P. Sex-specificities in offspring neurodevelopment and behaviour upon maternal glycation: Putative underlying neurometabolic and synaptic changes. Life Sci 2023; 321:121597. [PMID: 36948389 DOI: 10.1016/j.lfs.2023.121597] [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: 01/28/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 03/24/2023]
Abstract
AIM Lactation is an important programming window for metabolic disease and neuronal alterations later in life. We aimed to study the effect of maternal glycation during lactation on offspring neurodevelopment and behaviour, assessing possible sex differences and underpinning molecular players. METHODS Female Wistar rats were treated with the Glyoxalase-1 inhibitor S-p-Bromobenzylguthione cyclopentyl diester (BBGC 5 mg/kg). A control and vehicle group treated with dimethyl sulfoxide were considered. Male and female offspring were tested at infancy for neurodevelopment hallmarks. After weaning, triglycerides and total antioxidant capacity were measured in breast milk. At adolescence, offspring were tested for locomotor ability, anxious-like behaviour, and recognition memory. Metabolic parameters were assessed, and the hippocampus and prefrontal cortex were collected for molecular analysis. KEY FINDINGS Maternal glycation reduced triglycerides and total antioxidant capacity levels in breast milk. At infancy, both male and female offspring presented an anticipation on the achievement of neurodevelopmental milestones. At adolescence, male offspring exposed to maternal glycation presented hyperlocomotion, whereas offspring of both sexes presented a risk-taking phenotype, accompanied by GABAA receptor upregulation in the hippocampus. Females also demonstrated GABAA and PSD-95 changes in prefrontal cortex. Furthermore, lower levels of GLO1 and consequently higher accumulation of AGES were also observed in both male and female offspring hippocampus. SIGNIFICANCE Early exposure to maternal glycation induces changes in milk composition leading to neurodevelopment changes at infancy, and sex-specific behavioural and neurometabolic changes at adolescence, further evidencing that lactation period is a critical metabolic programming window and in sculpting behaviour.
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Affiliation(s)
- Andreia Amaro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Diana Sousa
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Mariana Sá-Rocha
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Marcos D Ferreira-Júnior
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal
| | - Cátia Barra
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Tamaeh Monteiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Paulo Mathias
- Department of Physiological Sciences (DCiF), Institute of Biological Sciences, University Federal of Goiás (UFG), Goiânia, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cellular Biology, State University of Maringá, Maringá, Brazil
| | - Filipa I Baptista
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Paulo Matafome
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Clinical-Academic Center of Coimbra (CACC), Coimbra, Portugal; Polytechnic Institute of Coimbra, Coimbra Health School (ESTeSC), Coimbra, Portugal.
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Parrela JPSDS, Borkenhagen IR, Salmeron SRF, Lima TAL, Miranda GDS, Costermani HDO, Ricken CLRDS, Alves EV, Gomes RM, de Oliveira JC. Intrauterine malnutrition disrupts leptin and ghrelin milk hormones, programming rats. J Endocrinol 2022; 255:11-23. [PMID: 35904490 DOI: 10.1530/joe-21-0427] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/05/2022] [Indexed: 11/08/2022]
Abstract
Herein, we assessed milk hormones, the biochemical composition of milk, and its association with neonatal body weight gain and metabolic homeostasis in weaned rats whose mothers were undernourished in the last third of pregnancy. From the 14th day of pregnancy until delivery, undernourished mothers had their food restricted by 50% (FR50), whereas control mothers were fed ad libitum. The litter size was adjusted to eight pups, and rats were weaned at 22 days old. Milk and blood from mothers, as well as blood and tissues from pups, were collected for further analyses. At birth, FR50 pups were smaller than control pups, and they exhibited hyperphagia and rapid catch-up growth during the suckling period. On day 12, the milk from FR50 mothers had higher energy content, glucose, total cholesterol, triglycerides, and acylated ghrelin but lower leptin and corticosterone levels. Interestingly, FR50 mothers were hypoglycemic and hyperleptinemic at the end of the nursing period. Weaned FR50 pups had an obese phenotype and exhibited insulin resistance, which was associated with hyperglycemia and hypertriglyceridemia; they also had high blood levels of total cholesterol, leptin, and acylated ghrelin. In addition, the protein expression of growth hormone secretagogue receptor (GHSR) in the hypothalamus was increased by almost 4-fold in FR50 pups. In summary, maternal calorie restriction during the last third of pregnancy disrupts energy and metabolic hormones in milk, induces pup hyperleptinemia and hyperghrelinemia, and upregulates their hypothalamic GHSR, thus suggesting that the hypothalamic neuroendocrine circuitry may be working to address the early onset of obesity.
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Affiliation(s)
- Jocemara Patrícia Silva de Souza Parrela
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ingridys Regina Borkenhagen
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Sarah Ramany Faria Salmeron
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Thalyne Aparecida Leite Lima
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ginislene Dias Souza Miranda
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Hercules de Oliveira Costermani
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Camila Luiza Rodrigues Dos Santos Ricken
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ester Vieira Alves
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Endocrine Physiology and Metabolism, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Júlio Cezar de Oliveira
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
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6
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Ferreira ARO, Ribeiro MVG, Peres MNC, Piovan S, Gonçalves GD, Saavedra LPJ, Martins JNDL, Junior MDF, Cavalcante KVN, Lopes GKG, Carneiro M, Almeida DL, Gomes RM, Comar JF, Armitage JA, Mathias PCDF, Palma-Rigo K. Protein Restriction in the Peri-Pubertal Period Induces Autonomic Dysfunction and Cardiac and Vascular Structural Changes in Adult Rats. Front Physiol 2022; 13:840179. [PMID: 35574445 PMCID: PMC9095958 DOI: 10.3389/fphys.2022.840179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/22/2022] [Indexed: 11/30/2022] Open
Abstract
Perturbations to nutrition during critical periods are associated with changes in embryonic, fetal or postnatal developmental patterns that may render the offspring more likely to develop cardiovascular disease in later life. The aim of this study was to evaluate whether autonomic nervous system imbalance underpins in the long-term hypertension induced by dietary protein restriction during peri-pubertal period. Male Wistar rats were assigned to groups fed with a low protein (4% protein, LP) or control diet (20.5% protein; NP) during peri-puberty, from post-natal day (PN) 30 until PN60, and then all were returned to a normal protein diet until evaluation of cardiovascular and autonomic function at PN120. LP rats showed long-term increased mean arterial pressure (p = 0.002) and sympathetic arousal; increased power of the low frequency (LF) band of the arterial pressure spectral (p = 0.080) compared with NP animals. The depressor response to the ganglion blocker hexamethonium was increased in LP compared with control animals (p = 0.006). Pulse interval variability showed an increase in the LF band and LF/HF ratio (p = 0.062 and p = 0.048) in LP animals. The cardiac response to atenolol and/or methylatropine and the baroreflex sensitivity were similar between groups. LP animals showed ventricular hypertrophy (p = 0.044) and increased interstitial fibrosis (p = 0.028) compared with controls. Reduced protein carbonyls (PC) (p = 0.030) and catalase activity (p = 0.001) were observed in hearts from LP animals compared with control. In the brainstem, the levels of PC (p = 0.002) and the activity of superoxide dismutase and catalase (p = 0.044 and p = 0.012) were reduced in LP animals, while the levels of GSH and total glutathione were higher (p = 0.039 and p = 0.038) compared with NP animals. Protein restriction during peri-pubertal period leads to hypertension later in life accompanied by sustained sympathetic arousal, which may be associated with a disorganization of brain and cardiac redox state and structural cardiac alteration.
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Affiliation(s)
- Anna Rebeka Oliveira Ferreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Maiara Vanusa Guedes Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Maria Natalia Chimirri Peres
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Silvano Piovan
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Géssica Dutra Gonçalves
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Juliana Nunes de Lima Martins
- Laboratory of Liver Metabolism and Radioisotopes, Department of Biochemistry, State University of Maringa, Maringa, Brazil
| | - Marcos Divino Ferreira Junior
- Laboratory of Endocrine Physiology and Metabolism, Department of Physiological Sciences, Federal University of Goias, Goiania, Brazil
| | - Keilah Valeria Naves Cavalcante
- Laboratory of Endocrine Physiology and Metabolism, Department of Physiological Sciences, Federal University of Goias, Goiania, Brazil
| | - Gabriel kian Guimarães Lopes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Mariane Carneiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Douglas Lopes Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Endocrine Physiology and Metabolism, Department of Physiological Sciences, Federal University of Goias, Goiania, Brazil
| | - Jurandir Fernando Comar
- Laboratory of Liver Metabolism and Radioisotopes, Department of Biochemistry, State University of Maringa, Maringa, Brazil
| | | | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Brazil
- Adventist College of Parana, Ivatuba, Brazil
- *Correspondence: Kesia Palma-Rigo,
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7
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Ferreira LA, Ferreira-Junior MD, Amaral KDJV, Cavalcante KVN, Pontes CNR, Cristin L, Ribeiro DS, dos Santos BG, Xavier CH, Mathias PCDF, Andersen ML, Pedrino GR, de Castro CH, Mazaro-Costa R, Gomes RM. Maternal postnatal early overfeeding induces sex-related cardiac dysfunction and alters sexually hormones levels in young offspring. J Nutr Biochem 2022; 103:108969. [DOI: 10.1016/j.jnutbio.2022.108969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 10/08/2021] [Accepted: 01/31/2022] [Indexed: 12/18/2022]
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Almeida DL, Moreira VM, Cardoso LE, Junior MDF, Pavanelo A, Ribeiro TA, da Silva Franco CC, Tófolo LP, Peres MNC, Ribeiro MVG, Ferreira ARO, Gomes RM, Miranda RA, Trevenzoli IH, Armitage JA, Palma-Rigo K, de Freitas Mathias PC. Lean in one way, in obesity another: effects of moderate exercise in brown adipose tissue of early overfed male Wistar rats. Int J Obes (Lond) 2022; 46:137-143. [PMID: 34552207 DOI: 10.1038/s41366-021-00969-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Received: 11/13/2020] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Early postnatal overfeeding (PO) induces long-term overweight and reduces brown adipose tissue (BAT) thermogenesis. Exercise has been suggested as a possible intervention to increase BAT function. In this study, we investigated chronical effects of moderate-intensity exercise in BAT function in postnatal overfed male Wistar rats METHODS: Litters' delivery was on postnatal-day 0 - PN0. At PN2, litters were adjusted to nine (normal litter - NL) or three pups (small litter - SL) per dam. Animals were weaned on PN21 and in PN30 randomly divided into sedentary (NL-Sed and SL-Sed) or exercised (NL-Exe and SL-Exe), N of 14 litters per group. Exercise protocol started (PN30) with an effort test; training sessions were performed three times weekly at 60% of the VO2max achieved in effort test, until PN80. On PN81, a temperature transponder was implanted beneath the interscapular BAT, whose temperature was assessed in periods of lights-on and -off from PN87 to PN90. Sympathetic nerve activation of BAT was registered at PN90. Animals were euthanized at PN91 and tissues collected RESULTS: PO impaired BAT thermogenesis in lights-on (pPO < 0.0001) and -off (pPO < 0.01). Exercise increased BAT temperature in lights-on (pExe < 0.0001). In NL-Exe, increased BAT activity was associated with higher sympathetic activity (pExe < 0.05), β3-AR (pExe < 0.001), and UCP1 (pExe < 0.001) content. In SL-Exe, increasing BAT thermogenesis is driven by a combination of tissue morphology remodeling (pExe < 0.0001) with greater effect in increasing UCP1 (pExe < 0.001) and increased β3-AR (pExe < 0.001) content. CONCLUSION Moderate exercise chronically increased BAT thermogenesis in both, NL and SL groups. In NL-Exe by increasing Sympathetic activity, and in SL-Exe by a combination of increased β3-AR and UCP1 content with morphologic remodeling of BAT. Chronically increasing BAT thermogenesis in obese subjects may lead to higher overall energy expenditure, favoring the reduction of obesity and related comorbidities.
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Affiliation(s)
- Douglas Lopes Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil.
- Department of Physiology, State University of Londrina, Londrina, Paraná, Brazil.
| | - Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
- Department of Physiology, State University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Lucas Eduardo Cardoso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | | | - Audrei Pavanelo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Claudinéia Conationi da Silva Franco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Laize Perón Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Maria Natália Chimirri Peres
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Maiara Vanusa Guedes Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Anna Rebeka Oliveira Ferreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Rodrigo Mello Gomes
- Physiological Sciences Department, Federal University of Goiás, Av Esperança, Goiânia/GO, Brazil
| | - Rosiane Aparecida Miranda
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, 550 Av, Pedro Calmon, Rio de Janeiro, Brazil
| | - Isis Hara Trevenzoli
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, 550 Av, Pedro Calmon, Rio de Janeiro, Brazil
| | - James Andrew Armitage
- Deakin University, School of Medicine, Optometry, 75 Pigdons Rd, Waurn Ponds, VIC, Australia
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Paulo Cesar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
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9
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Grilo LF, Tocantins C, Diniz MS, Gomes RM, Oliveira PJ, Matafome P, Pereira SP. Metabolic Disease Programming: From Mitochondria to Epigenetics, Glucocorticoid Signalling and Beyond. Eur J Clin Invest 2021; 51:e13625. [PMID: 34060076 DOI: 10.1111/eci.13625] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 03/30/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022]
Abstract
Embryonic and foetal development are critical periods of development in which several environmental cues determine health and disease in adulthood. Maternal conditions and an unfavourable intrauterine environment impact foetal development and may programme the offspring for increased predisposition to metabolic diseases and other chronic pathologic conditions throughout adult life. Previously, non-communicable chronic diseases were only associated with genetics and lifestyle. Now the origins of non-communicable chronic diseases are associated with early-life adaptations that produce long-term dysfunction. Early-life environment sets the long-term health and disease risk and can span through multiple generations. Recent research in developmental programming aims at identifying the molecular mechanisms responsible for developmental programming outcomes that impact cellular physiology and trigger adulthood disease. The identification of new therapeutic targets can improve offspring's health management and prevent or overcome adverse consequences of foetal programming. This review summarizes recent biomedical discoveries in the Developmental Origins of Health and Disease (DOHaD) hypothesis and highlight possible developmental programming mechanisms, including prenatal structural defects, metabolic (mitochondrial dysfunction, oxidative stress, protein modification), epigenetic and glucocorticoid signalling-related mechanisms suggesting molecular clues for the causes and consequences of programming of increased susceptibility of offspring to metabolic disease after birth. Identifying mechanisms involved in DOHaD can contribute to early interventions in pregnancy or early childhood, to re-set the metabolic homeostasis and break the chain of subsequent events that could lead to the development of disease.
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Affiliation(s)
- Luís F Grilo
- CNC - Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,PhD Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Carolina Tocantins
- CNC - Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Mariana S Diniz
- CNC - Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Rodrigo Mello Gomes
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | - Paulo J Oliveira
- CNC - Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Paulo Matafome
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR) and Institute of Physiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal.,Department of Complementary Sciences, Instituto Politécnico de Coimbra, Coimbra Health School (ESTeSC), Coimbra, Portugal
| | - Susana P Pereira
- CNC - Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,Laboratory of Metabolism and Exercise (LametEx), Research Centre in Physical Activity, Health and Leisure (CIAFEL), Laboratory for Integrative and Translational Research in Population Health (ITR), Faculty of Sport, University of Porto, Porto, Portugal
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10
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Ribeiro TA, Pavanello A, Tófolo LP, de Oliveira JC, Moraes AMPD, Franco CCDS, Prates KV, Martins IP, Palma-Rigo K, Torrezan R, Yeo E, Gomes RM, Francisco FA, Mathias PCDF, Malta A. Soy isoflavones recover pancreatic islet function and prevent metabolic dysfunction in male rats. J Endocrinol 2021; 250:81-91. [PMID: 34101615 DOI: 10.1530/joe-21-0019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/04/2021] [Indexed: 11/08/2022]
Abstract
We tested whether chronic supplementation with soy isoflavones could modulate insulin secretion levels and subsequent recovery of pancreatic islet function as well as prevent metabolic dysfunction induced by early overfeeding in adult male rats. Wistar rats raised in small litters (SL, three pups/dam) and normal litters (NL, nine pups/dam) were used as models of early overfeeding and normal feeding, respectively. At 30 to 90 days old, animals in the SL and NL groups received either soy isoflavones extract (ISO) or water (W) gavage serving as controls. At 90 days old, body weight, visceral fat deposits, glycemia, insulinemia were evaluated. Glucose-insulin homeostasis and pancreatic-islet insulinotropic response were also determined. The early life overnutrition induced by small litter displayed metabolic dysfunction, glucose, and insulin homeostasis disruption in adult rats. However, adult SL rats treated with soy isoflavones showed improvement in glucose tolerance, insulin sensitivity, insulinemia, fat tissue accretion, and body weight gain, compared with the SL-W group. Pancreatic-islet response to cholinergic, adrenergic, and glucose stimuli was improved in both isoflavone-treated groups. In addition, different isoflavone concentrations increased glucose-stimulated insulin secretion in islets of all groups with higher magnitude in both NL and SL isoflavone-treated groups. These results indicate that long-term treatment with soy isoflavones inhibits early overfeeding-induced metabolic dysfunction in adult rats and modulated the process of insulin secretion in pancreatic islets.
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Affiliation(s)
- Tatiane Aparecida Ribeiro
- Department of Biochemistry and Biomedical Science, McMaster University, Hamilton Ontario, Canada
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | - Audrei Pavanello
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | - Laize Peron Tófolo
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | | | - Ana Maria Praxedes de Moraes
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | | | - Kelly Valério Prates
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | - Isabela Peixoto Martins
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | - Kesia Palma-Rigo
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | - Rosana Torrezan
- Department of Physiologic Science, State University of Maringá - Maringá, Parana, Brazil
| | - Erica Yeo
- Department of Biochemistry and Biomedical Science, McMaster University, Hamilton Ontario, Canada
| | - Rodrigo Mello Gomes
- Laboratory of Neuroscience and Cardiovascular Physiology, Department of Physiological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Flávio Andrade Francisco
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
| | | | - Ananda Malta
- Department of Biotechnology, Genetics, and Cellular Biology, State University of Maringá, Maringá, Parana, Brazil
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11
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Franco CCDS, Previate C, Trombini AB, Miranda RA, Barella LF, Saavedra LPJ, de Oliveira JC, Prates KV, Tófolo LP, Ribeiro TA, Pavanello A, Malta A, Martins IP, Moreira VM, Matiusso CCI, Francisco FA, Alves VS, de Moraes AMP, de Sant Anna JR, de Castro Prado MAA, Gomes RM, Vieira E, de Freitas Mathias PC. Metformin Improves Autonomic Nervous System Imbalance and Metabolic Dysfunction in Monosodium L-Glutamate-Treated Rats. Front Endocrinol (Lausanne) 2021; 12:660793. [PMID: 34149616 PMCID: PMC8212417 DOI: 10.3389/fendo.2021.660793] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 05/04/2021] [Indexed: 01/15/2023] Open
Abstract
Metformin is an antidiabetic drug used for the treatment of diabetes and metabolic diseases. Imbalance in the autonomic nervous system (ANS) is associated with metabolic diseases. This study aimed to test whether metformin could improve ANS function in obese rats. Obesity was induced by neonatal treatment with monosodium L-glutamate (MSG). During 21-100 days of age, MSG-rats were treated with metformin 250 mg/kg body weight/day or saline solution. Rats were euthanized to evaluate biometric and biochemical parameters. ANS electrical activity was recorded and analyzed. Metformin normalized the hypervagal response in MSG-rats. Glucose-stimulated insulin secretion in isolated pancreatic islets increased in MSG-rats, while the cholinergic response decreased. Metformin treatment normalized the cholinergic response, which involved mostly the M3 muscarinic acetylcholine receptor (M3 mAChR) in pancreatic beta-cells. Protein expression of M3 mAChRs increased in MSG-obesity rats, while metformin treatment decreased the protein expression by 25%. In conclusion, chronic metformin treatment was effective in normalizing ANS activity and alleviating obesity in MSG-rats.
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Affiliation(s)
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Amanda Bianchi Trombini
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Rosiane Aparecida Miranda
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz Felipe Barella
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | | | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Veridiana Motta Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Camila Cristina Ianoni Matiusso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Vander Silva Alves
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Ana Maria Praxedes de Moraes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Juliane Rocha de Sant Anna
- Laboratory of Mutagenesis & Genetics, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | | | - Rodrigo Mello Gomes
- Department of Physiological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Elaine Vieira
- Postgraduate Program on Physical Education, University Católica of Brasília, Brasília, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
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Chiareli RA, Carvalho GA, Marques BL, Mota LS, Oliveira-Lima OC, Gomes RM, Birbrair A, Gomez RS, Simão F, Klempin F, Leist M, Pinto MCX. The Role of Astrocytes in the Neurorepair Process. Front Cell Dev Biol 2021; 9:665795. [PMID: 34113618 PMCID: PMC8186445 DOI: 10.3389/fcell.2021.665795] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [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: 02/08/2021] [Accepted: 04/29/2021] [Indexed: 12/17/2022] Open
Abstract
Astrocytes are highly specialized glial cells responsible for trophic and metabolic support of neurons. They are associated to ionic homeostasis, the regulation of cerebral blood flow and metabolism, the modulation of synaptic activity by capturing and recycle of neurotransmitters and maintenance of the blood-brain barrier. During injuries and infections, astrocytes act in cerebral defense through heterogeneous and progressive changes in their gene expression, morphology, proliferative capacity, and function, which is known as reactive astrocytes. Thus, reactive astrocytes release several signaling molecules that modulates and contributes to the defense against injuries and infection in the central nervous system. Therefore, deciphering the complex signaling pathways of reactive astrocytes after brain damage can contribute to the neuroinflammation control and reveal new molecular targets to stimulate neurorepair process. In this review, we present the current knowledge about the role of astrocytes in brain damage and repair, highlighting the cellular and molecular bases involved in synaptogenesis and neurogenesis. In addition, we present new approaches to modulate the astrocytic activity and potentiates the neurorepair process after brain damage.
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Affiliation(s)
| | | | | | - Lennia Soares Mota
- Department of Pharmacology, Federal University of Goias, Goiânia, Brazil
| | | | | | - Alexander Birbrair
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Renato Santiago Gomez
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício Simão
- Research Division, Vascular Cell Biology, Joslin Diabetes Center and Harvard Medical School, Boston, MA, United States
| | | | - Marcel Leist
- Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
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Marques SM, Naves LM, Silva TDME, Cavalcante KVN, Alves JM, Ferreira-Neto ML, de Castro CH, Freiria-Oliveira AH, Fajemiroye JO, Gomes RM, Colombari E, Xavier CH, Pedrino GR. Medullary Noradrenergic Neurons Mediate Hemodynamic Responses to Osmotic and Volume Challenges. Front Physiol 2021; 12:649535. [PMID: 33967822 PMCID: PMC8103169 DOI: 10.3389/fphys.2021.649535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/05/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
Despite being involved in homeostatic control and hydro-electrolyte balance, the contribution of medullary (A1 and A2) noradrenergic neurons to the hypertonic saline infusion (HSI)-induced cardiovascular response after hypotensive hemorrhage (HH) remains to be clarified. Hence, the present study sought to determine the role of noradrenergic neurons in HSI-induced hemodynamic recovery in male Wistar rats (290–320 g) with HH. Medullary catecholaminergic neurons were lesioned by nanoinjection of antidopamine-β-hydroxylase–saporin (0.105 ng·nl−1) into A1, A2, or both (LES A1; LES A2; or LES A1+A2, respectively). Sham rats received nanoinjections of free saporin in the same regions (SHAM A1; SHAM A2; or SHAM A1+A2, respectively). After 15 days, rats were anesthetized and instrumented for cardiovascular recordings. Following 10 min of stabilization, HH was performed by withdrawing arterial blood until mean arterial pressure (MAP) reaches 60 mmHg. Subsequently, HSI was performed (NaCl 3 M; 1.8 ml·kg−1, i.v.). The HH procedure caused hypotension and bradycardia and reduced renal, aortic, and hind limb blood flows (RBF, ABF, and HBF). The HSI restored MAP, heart rate (HR), and RBF to baseline values in the SHAM, LES A1, and LES A2 groups. However, concomitant A1 and A2 lesions impaired this recovery, as demonstrated by the abolishment of MAP, RBF, and ABF responses. Although lesioning of only a group of neurons (A1 or A2) was unable to prevent HSI-induced recovery of cardiovascular parameters after hemorrhage, lesions of both A1 and A2 made this response unfeasible. These findings show that together the A1 and A2 neurons are essential to HSI-induced cardiovascular recovery in hypovolemia. By implication, simultaneous A1 and A2 dysfunctions could impair the efficacy of HSI-induced recovery during hemorrhage.
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Affiliation(s)
- Stefanne Madalena Marques
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | - Lara Marques Naves
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | - Talita de Melo E Silva
- Department of Physiology and Biophysics, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | | | - Juliana Milan Alves
- Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Marcos Luiz Ferreira-Neto
- Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Carlos Henrique de Castro
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Rodrigo Mello Gomes
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | - Eduardo Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Carlos Henrique Xavier
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
| | - Gustavo Rodrigues Pedrino
- Department of Physiology, Biological Sciences Institute, Federal University of Goiás, Goiânia, Brazil
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14
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Graziani D, Ribeiro JVV, Cruz VS, Gomes RM, Araújo EG, Santos Júnior ACM, Tomaz HCM, Castro CH, Fontes W, Batista KA, Fernandes KF, Xavier CH. Oxidonitrergic and antioxidant effects of a low molecular weight peptide fraction from hardened bean (Phaseolus vulgaris) on endothelium. ACTA ACUST UNITED AC 2021; 54:e10423. [PMID: 33886808 PMCID: PMC8055179 DOI: 10.1590/1414-431x202010423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/12/2020] [Accepted: 01/07/2021] [Indexed: 12/31/2022]
Abstract
About 3000 tons of beans are not used in human food due to hardening. Several studies on bean-derived bioactive peptides have shown potential to treat some diseases, including those relying on oxidative dysfunctions. We assessed the effects of peptides extracted from hardened bean Phaseolus vulgaris (PV) on reactive oxygen species (ROS) and nitric oxide (NO) production, cytotoxic and cytoprotective effects in endothelial cells, and oxidonitrergic-dependent vasodilating effects. Extract was composed by peptide fraction <3 kDa (PV3) from hardened common bean residue. PV3 sequences were obtained and analyzed with bioinformatics. Human umbilical vein endothelial cells were treated with 10, 20, 30, and 250 µg/mL PV3. Oxidative stress was provoked by 3% H2O2. Cytotoxicity and cytoprotective effects were evaluated by MTT assay, whereas, ROS and NO were quantified using DHE and DAF-FM fluorescent probes by confocal microscopy. NO- and endothelium-dependent vasodilating effects of PV3 were assessed in isolated aortic rings. We found 35 peptides with an average mass of 1.14 kDa. There were no cell deaths with 10 and 20 μg/mL PV3. PV3 at 30 μg/mL increased cell viability, while cytotoxicity was observed only with 250 μg/mL PV3. PV3 at 10 μg/mL was able to protect cells from oxidative stress. PV3 also increased NO release without causing cell death. It also reduced relative ROS production induced by H2O2. PV3 vasodilating effects relied on endothelium-dependent NO release. PV3 obtained from low-commercial-value bean displays little cytotoxicity and exerts antioxidant effects, whereas it increases endothelial NO release.
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Affiliation(s)
- D Graziani
- Laboratório de Neurobiologia de Sistemas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil.,Laboratório Multiusuário de Avaliação de Moléculas, Células e Tecidos, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - J V V Ribeiro
- Laboratório de Neurobiologia de Sistemas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - V S Cruz
- Laboratório Multiusuário de Avaliação de Moléculas, Células e Tecidos, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - R M Gomes
- Laboratório de Neurobiologia de Sistemas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - E G Araújo
- Laboratório Multiusuário de Avaliação de Moléculas, Células e Tecidos, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - A C M Santos Júnior
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brasília, Brasil
| | - H C M Tomaz
- Laboratório de Fisiopatologia Cardiovascular e Neurológica, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - C H Castro
- Laboratório de Fisiopatologia Cardiovascular e Neurológica, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - W Fontes
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brasília, Brasil
| | - K A Batista
- Laboratório de Química de Polímeros, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil.,Instituto Federal de Educação, Ciência e Tecnologia de Goiás - Campus Goiânia Oeste, Goiânia, GO, Brasil
| | - K F Fernandes
- Laboratório de Química de Polímeros, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - C H Xavier
- Laboratório de Neurobiologia de Sistemas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
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15
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Mendonça MM, Costa AN, Moraes GCA, Martins GM, Almeida AF, Rincon GCN, Siqueira JPR, Padilha DM, Moya MI, Ferreira-Neto ML, Gomes RM, Pedrino GR, Fontes MAP, Colombari E, Crestani CC, Fajemiroye JO, Xavier CH. Centrally acting antihypertensives change the psychogenic cardiovascular reactivity. Fundam Clin Pharmacol 2021; 35:892-905. [PMID: 33465820 DOI: 10.1111/fcp.12648] [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: 11/03/2020] [Revised: 12/21/2020] [Accepted: 01/15/2021] [Indexed: 11/27/2022]
Abstract
Clonidine (CL) and Rilmenidine (RI) are among the most frequently prescribed centrally acting antihypertensives. Here, we compared CL and RI effects on psychogenic cardiovascular reactivity to sonant, luminous, motosensory, and vibrotactile stimuli during neurogenic hypertension. The femoral artery and vein of Wistar (WT - normotensive) and spontaneously hypertensive rats (SHR) were catheterized before (24 h interval) i.p. injection of vehicle (NaCl 0.9%, control - CT group), CL (10 µg/kg), or RI (10 µg/kg) and acute exposure to luminous (5000 lm), sonant (75 dB sudden tap), motor (180° cage twist), and air-jet (10 L/min - restraint and vibrotactile). Findings showed that: (i) CL or RI reduced the arterial pressure of SHR, without affecting basal heart rate in WT and SHR; (ii) different stimuli evoked pressor and tachycardic responses; (iii) CL and RI reduced pressor response to sound; (iv) CL or RI reduced pressor responses to luminous stimulus without a change in peak tachycardia in SHR; (v) cage twist increased blood pressure in SHR, which was attenuated by CL or RI; (vi) air-jet increased pressure and heart rate; (vii) CL or RI attenuated the pressor responses to air-jet in SHR while RI reduced the chronotropic reactivity in both strains. Altogether, both antihypertensives relieved the psychogenic cardiovascular responses to different stimuli. The RI elicited higher cardioprotective effects through a reduction in air-jet-induced tachycardia.
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Affiliation(s)
- Michelle M Mendonça
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil
| | - Amanda N Costa
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil
| | - Gean C A Moraes
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil
| | - Gustavo M Martins
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | - Aline F Almeida
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | - Gabriel C N Rincon
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | - João P R Siqueira
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | - Daniella M Padilha
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | - Marcela I Moya
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil.,School of Medicine, Federal University of Goias, Goiania, Brazil
| | | | - Rodrigo Mello Gomes
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil
| | | | | | - Eduardo Colombari
- School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Carlos C Crestani
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - James O Fajemiroye
- Institute of Biological Sciences, Federal University of Goias, Goiania, Brazil
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16
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Sales da Silva E, Ferreira PM, Castro CH, Pacheco LF, Graziani D, Pontes CNR, Bessa ADSMD, Fernandes E, Naves LM, Ribeiro LCDS, Mendonça MM, Gomes RM, Pedrino GR, Ferreira RN, Xavier CH. Brain and kidney GHS-R1a underexpression is associated with changes in renal function and hemodynamics during neurogenic hypertension. Mol Cell Endocrinol 2020; 518:110984. [PMID: 32814069 DOI: 10.1016/j.mce.2020.110984] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 10/23/2022]
Abstract
Ghrelin is a peptide hormone whose effects are mediated by the growth hormone secretagogue receptor subtype 1a (GHS-R1a), mainly expressed in the brain but also in kidneys. The hypothesis herein raised is that GHS-R1a would be player in the renal contribution to the neurogenic hypertension pathophysiology. To investigate GHS-R1a role on renal function and hemodynamics, we used Wistar (WT) and spontaneously hypertensive rats (SHR). First, we assessed the effect of systemically injected vehicle, ghrelin, GHS-R1a antagonist PF04628935, ghrelin plus PF04628935 or GHS-R1a synthetic agonist MK-677 in WT and SHR rats housed in metabolic cages (24 h). Blood and urine samples were also analyzed. Then, we assessed the GHS-R1a contribution to the control of renal vasomotion and hemodynamics in WT and SHR. Finally, we assessed the GHS-R1a levels in brain areas, aorta, renal artery, renal cortex and medulla of WT and SHR rats using western blot. We found that ghrelin and MK-677 changed osmolarity parameters of SHR, in a GHS-R1a-dependent manner. GHS-R1a antagonism reduced the urinary Na+ and K+ and creatinine clearance in WT but not in SHR. Ghrelin reduced arterial pressure and increased renal artery conductance in SHR. GHS-R1a protein levels were decreased in the kidney and brain areas of SHR when compared to WT. Therefore, GHS-R1a role in the control of renal function and hemodynamics during neurogenic hypertension seem to be different, and this may be related to brain and kidney GHS-R1a downregulation.
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Affiliation(s)
- Elder Sales da Silva
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Patrícia Maria Ferreira
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Carlos Henrique Castro
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Lilian Fernanda Pacheco
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Daniel Graziani
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Carolina Nobre Ribeiro Pontes
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Amanda de Sá Martins de Bessa
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Erika Fernandes
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Lara Marques Naves
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Larissa Cristina Dos Santos Ribeiro
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Michelle Mendanha Mendonça
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Rodrigo Mello Gomes
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Gustavo Rodrigues Pedrino
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Reginaldo Nassar Ferreira
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
| | - Carlos Henrique Xavier
- Systems Neurobiology Laboratory, Department of Physiology, Institute of Biological Sciences, Room 203, Federal University of Goiás, Goiânia, GO, 74690-900, Brazil.
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17
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Gomes RM, Rocha ML, Cunha GJ, Morais RM, Duarte JD, Araujo I, Fonseca MC. P4519Sleep Apnea screening in Heart Failure: an exploratory analysis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0912] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Sleep Apnea (SA) is increasingly recognized in patients (pts) with Heart Failure (HF). Nocturnal polysomnography (PSG) is the gold-standard to diagnose SA. Currently, portable devices have been thoroughly validated in HF cohorts.
Purpose
To determine the correlation between clinical, laboratory and respiratory measurements with the presence of SA (defined as apnea-hypopnea index (AHI) >15/h) and desaturation time with SpO2 <90% (T90) ≥22 minutes, a strong mortality predictor in HF with reduced ejection fraction (HFrEF); and to compare the features of pts with HFrEF vs HF with preserved ejection fraction (HFpEF).
Methods
Our work is based on a single-center retrospective cohort of pts hospitalized for decompensated HF during 2013–2018. All pts were screened for SA with ApneaLinkTM after compensation the night preceding discharge. HF was defined as recommended by the European Society of Cardiology guidelines. A left ventricular ejection fraction ≤45% and >45% was used to define HFrEF and HFpEF, respectively, as per SERVE-HF trial.
Results
A total of 228 pts were included in the analysis (mean age 75.3±10.5 years, 48.9% male). SA was present in 135 (59.2%) pts and 41.2% had HFrEF. Mean AHI was 24.5±19.2/h, mean O2 desaturation index (ODI) was 24.4±21.0/h and mean T90 was 169.6±151.2 minutes. In multivariate models, ODI, gender and ischemic HF were predictors of AHI >15/h (R2 65.8%), with ODI being the strongest predictor (standardized coefficient 64.8%). Similarly, mean SpO2 was the only predictor of T90 ≥22minutes (R2 65.8%) (Figure 1). HFrEF pts had more often AHI>15/h (73.4% vs 48.5%, p<0.001), more total apneas (62±148 vs 16±79, p<0.001), obstructive apneas (28±76 vs 8±43, p<0.001) and central apneas (6±20 vs 0±5, p<0.001) than those with HFpEF. In multivariate models, ODI (OR 1.14, CI 1.03–1.26, p=0.013 for HFrEF; OR 1.21, CI 1.11–1.33, p<0.0001 for HFpEF) and mean SpO2 (OR 0.29, CI 0.14–0.60, p=0.001 for HFrEF; OR 0.23, CI 0.10–0.52, p<0.0001 for HFpEF) were the only predictors of AHI >15/h and T90 ≥22 minutes in both groups, respectively.
Conclusions
SA was highly prevalent in HFrEF and HFpEF. ODI and mean SpO2 were highly predictive of AHI >15/h and T90 ≥22minutes, respectively, both prognostic markers validated in a population with HFrEF, and equally so in HFrEF and HFpEF. These findings hypothesize a similar pathophysiology of SA in HF, regardless of left ventricular systolic function. Also, whether simple pulse oximetry can be routinely used for SA screening, since PSG and portable devices are often not widely available, is a finding worth being prospectively assessed.
Acknowledgement/Funding
None
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Affiliation(s)
- R M Gomes
- Hospital de Vila Franca de Xira, Cardiology, Vila Franca de Xira, Portugal
| | - M L Rocha
- Hospital de Santa Cruz, Lisbon, Portugal
| | - G J Cunha
- Hospital de Santa Cruz, Lisbon, Portugal
| | - R M Morais
- Hospital de Sao Francisco Xavier, Internal Medicine, Lisbon, Portugal
| | - J D Duarte
- Hospital Prof Fernando da Fonseca EPE, Internal Medicine, Amadora, Portugal
| | - I Araujo
- Hospital de Sao Francisco Xavier, Heart Failure Clinic, Lisbon, Portugal
| | - M C Fonseca
- Hospital de Sao Francisco Xavier, Heart Failure Clinic, Lisbon, Portugal
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18
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Rocha ML, Cunha GC, Gomes RM, Morais R, Campos L, Araujo I, Fonseca MC. P5008Empagliflozin in a real-world chronic heart failure population. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0186] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Heart Failure (HF) is a burdensome syndrome with significant mortality, morbidity and costs. Its prognosis is further aggravated by diabetes mellitus (DM). The EMPA-REG OUTCOME trial suggested that empagliflozin significantly reduced HF hospitalizations compared to placebo in patients with DM.
Purpose
We aimed to investigate which patients with chronic HF and DM in the outpatient setting could have been enrolled in the main empagliflozin trial.
Methods
This analysis is based on a retrospective cohort enrolling chronic HF patients who consecutively attended the HF appointment between January and July 2018. Of these, those with concomitant DM were selected and further analysed. The key EMPA-REG OUTCOME trial inclusion criteria [(i.e., hemoglobin A1c 7–10%, high cardiovascular (CV) risk and glomerular filtration rate [GFR] ≥30mL/min/1,73m2) were considered. Further, the European Medicine Agency (EMA) restriction (GFR>60mL/min/1,73m2) was also considered in an additional analysis.
Results
Of 316 patients with HF, 114 (36%) concomitantly had DM. Mean age was 74±10 years, 63% were male and most (54%) had preserved left ventricular ejection fraction. Ischemic (51%) and hypertensive (27%) HF were the most often observed etiologies. According to the inclusion criteria, 21 (18.4%) (or 5.3% when further considering the EMA restriction) HF patients could have been potentially enrolled in the main trial and derive a HF hospitalization reduction benefit from starting empagliflozin. The remainder would be excluded due to GFR<30mL/min/1.73m2 (2.6%), absence of “high CV risk” as per trial's definition (7%), HbA1c off target (18,4%) or a combination of the above criteria (53.6%). In light of the new Standards of Medical Care in Diabetes 2019, controlled patients with HbA1c off target (i.e., <7% or >10%) could be switched to a SGLT2 inhibitors, hence possibly expanding the indication to start empagliflozin to 36.8% of our HF cohort.
Figure 1
Conclusions
Roughly 1 in every 5 patients with HF and DM could have been enrolled in the main empagliflozin trial, as per key inclusion criteria, and potentially derive CV benefit from it. Thus, only a minority of our cohort shared the features for EMPA-REG OUTCOME trial inclusion, limiting the extrapolation of the trial's observed CV benefits to our HF cohort. Indeed, whether these benefits also expand to overall HF cohort is eagerly awaited by ongoing trials.
Acknowledgement/Funding
None
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Affiliation(s)
- M L Rocha
- Hospital de Santa Cruz, Lisbon, Portugal
| | - G C Cunha
- Hospital de Santa Cruz, Lisbon, Portugal
| | - R M Gomes
- Hospital de Vila Franca de Xira, Cardiology, Vila Franca de Xira, Portugal
| | - R Morais
- Hospital de Sao Francisco Xavier, Internal Medicine, Lisbon, Portugal
| | - L Campos
- Hospital de Sao Francisco Xavier, Internal Medicine, Lisbon, Portugal
| | - I Araujo
- Hospital de Sao Francisco Xavier, Heart Failure Clinic, Lisbon, Portugal
| | - M C Fonseca
- Hospital de Sao Francisco Xavier, Heart Failure Clinic, Lisbon, Portugal
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19
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Lima YC, Kurauti MA, da Fonseca Alves G, Ferezini J, Piovan S, Malta A, de Almeida FLA, Gomes RM, de Freitas Mathias PC, Milani PG, da Costa SC, Mareze-Costa CE. Whey protein sweetened with Stevia rebaudiana Bertoni (Bert.) increases mitochondrial biogenesis markers in the skeletal muscle of resistance-trained rats. Nutr Metab (Lond) 2019; 16:65. [PMID: 31528184 PMCID: PMC6743177 DOI: 10.1186/s12986-019-0391-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/26/2019] [Accepted: 09/06/2019] [Indexed: 12/31/2022] Open
Abstract
Background A combination of resistance training and whey protein supplementation is a common practice among athletes and recreational exercisers to enhance muscle growth and strength. Although their safety as food additives is controversial, artificial sweeteners are present in whey protein supplements. Thus, natural sweeteners extracted from the leaves of Stevia rebaudiana are a potential alternative, due to their safety and health benefits. Here, we investigated the effects of whey protein sweetened with S. rebaudiana on physical performance and mitochondrial biogenesis markers in the skeletal muscle of resistance-trained rats. Methods Forty male Wistar rats were distributed into four groups: sedentary rats, trained rats, trained rats receiving whey protein and trained rats receiving whey protein sweetened with S. rebaudiana leaf extracts. Resistance training was performed by climbing a ladder 5 days per week, during 8-weeks. The training sessions consisted of four climbs carrying a load of 50, 75, 90, and 100% of the maximum load-carrying capacity which we determined before by performing a maximum load-carrying test for each animal. After this period, we collected plasma and tissues samples to evaluate biochemical, histological and molecular (western blot) parameters in these rats. Results Dietary supplementation with whey protein sweetened with S. rebaudiana significantly enhanced the maximum load-carrying capacity of resistance-trained rats, compared with non-sweetened whey protein supplementation. This enhanced physical performance was accompanied by an increase in the weight of the gastrocnemius and soleus muscle pads. Although the muscle pad of the biceps brachii was not altered, we observed a significant increase in PGC-1α expression, which was followed by a similar pattern in TFAM protein expression, two important mitochondrial biogenesis markers. In addition, a higher level of AMPK phosphorylation was observed in these resistance-trained rats. Finally, supplementation with whey protein sweetened with S. rebaudiana also induced a significant decrease in retroperitoneal adipocyte diameter and an increase in the weight of brown adipose tissue pads in resistance-trained rats. Conclusion The addition of Stevia rebaudiana leaf extracts to whey protein appears to be a potential strategy for those who want to increase muscular mass and strength and also improve mitochondrial function. This strategy may be useful for both athletes and patients with metabolic disorders, such as obesity and type 2 diabetes.
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Affiliation(s)
- Yago Carvalho Lima
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
| | - Mirian Ayumi Kurauti
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
| | - Gabriel da Fonseca Alves
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
| | - Jonathan Ferezini
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
| | - Silvano Piovan
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
| | - Ananda Malta
- 2Department of Cell Biology and Genetics, Universidade Estadual de Maringá, Maringá, PR Brazil
| | | | - Rodrigo Mello Gomes
- 4Department of Physiological Sciences, Universidade Federal de Goiás, Goiânia, GO Brazil
| | | | - Paula Gimenez Milani
- 5Department of Biochemistry, Universidade Estadual de Maringá, Maringá, PR Brazil
| | | | - Cecilia Edna Mareze-Costa
- 1Department of Physiological Sciences, Universidade Estadual de Maringá(UEM), Av. Colombo 5790, Zona 7, Bloco H79, Maringá, PR 87020900 Brazil
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20
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de Oliveira IGB, Junior MDF, Lopes PR, Campos DBT, Ferreira-Neto ML, Santos EHR, Mathias PCDF, Francisco FA, Koike BDV, de Castro CH, Freiria-Oliveira AH, Pedrino GR, Gomes RM, Rosa DA. Forced internal desynchrony induces cardiometabolic alterations in adult rats. J Endocrinol 2019; 242:25-36. [PMID: 31071682 DOI: 10.1530/joe-19-0026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 04/10/2019] [Accepted: 05/09/2019] [Indexed: 11/08/2022]
Abstract
Disruptions in circadian rhythms have been associated with several diseases, including cardiovascular and metabolic disorders. Forced internal desynchronization induced by a period of T-cycles of 22 h (T22 protocol) reaches the lower limit of entrainment and dissociates the circadian rhythmicity of the locomotor activity into two components, driven by different outputs from the suprachiasmatic nucleus (SCN). The main goal of this study was to evaluate the cardiovascular and metabolic response in rats submitted to internal desynchronization by T22 protocol. Male Wistar rats were assigned to either a control group subjected to a usual T-cycles of 24 h (12 h-12 h) or an experimental group subjected to the T22 protocol involving a 22-h symmetric light-dark cycle (11 h-11 h). After 8 weeks, rats subjected to the T22 exhibited desynchrony in their locomotor activity. Although plasma glucose and insulin levels were similar in both groups, desynchronized rats demonstrated dyslipidemia, significant hypertrophy of the fasciculate zone of the adrenal gland, low IRB, IRS2, PI3K, AKT, SOD and CAT protein expression and an increased expression of phosphoenolpyruvate carboxykinase in the liver. Furthermore, though they maintained normal baseline heart rates and mean arterial pressure levels, they also presented reduced baroreflex sensitivity. The findings indicate that circadian timing desynchrony following the T22 protocol can induce cardiometabolic disruptions. Early hepatic metabolism dysfunction can trigger other disorders, though additional studies are needed to clarify the causes.
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Affiliation(s)
| | - Marcos Divino Ferreira Junior
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Paulo Ricardo Lopes
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | - Marcos Luiz Ferreira-Neto
- Departament of Physiology, Institute of Biomedical Science, Laboratory of Electrophysiology and Cardiovascular Physiology, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Eduardo Henrique Rosa Santos
- Departament of Physiology, Institute of Biomedical Science, Laboratory of Electrophysiology and Cardiovascular Physiology, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Paulo Cezar de Freitas Mathias
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Paraná, Brazil
| | - Flávio Andrade Francisco
- Department of Biotechnology, Genetics and Cell Biology, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Paraná, Brazil
| | - Bruna Del Vechio Koike
- Medical Department, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Carlos Henrique de Castro
- Department of Physiological Science, Integrative Laboratory of Cardiovascular and Neurological Pathophysiology, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - André Henrique Freiria-Oliveira
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Gustavo Rodrigues Pedrino
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Rodrigo Mello Gomes
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Daniel Alves Rosa
- Center of Neuroscience and Cardiovascular Research, Biological Science Institute, Federal University of Goiás, Goiânia, Goiás, Brazil
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21
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Valério Prates K, Ribeiro TA, Pavanello A, Jacinto Saavedra LP, Moreira VM, da Silva Silveira S, Martins IP, Francisco FA, Ferreira Junior MD, Alves VS, Tófolo LP, Previate C, da Silva Franco CC, Gomes RM, Palma-Rigo K, Malta A, de Freitas Mathias PC. Potential attenuation of early-life overfeeding-induced metabolic dysfunction by chronic maternal acetylcholinesterase inhibitor exposure. Toxicology 2019; 425:152250. [PMID: 31326399 DOI: 10.1016/j.tox.2019.152250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/10/2019] [Accepted: 07/18/2019] [Indexed: 12/12/2022]
Abstract
Evidence suggests that low concentration perinatal exposure to environmental contaminants, such as organophosphate (OP) is associated with later life insulin resistance and type 2 diabetes. The aim of this work was to investigate whether chronic maternal OP exposure exacerbates metabolic dysfunctions in early-overfed rats. During pregnancy and lactational periods, dams received OP by gavage. To induce neonatal overnutrition at postnatal day 3, pups were standardized to 9 or 3 per nest. At 90-days-old, glucose-insulin homeostasis and insulin release from pancreatic islets were analyzed. While both OP exposure and overfeeding alone did induce diabetogenic phenotypes in adulthood, there was no exacerbation in rats that experienced both. Unexpectedly, the group that experienced both had improved adiposity, metabolic parameters, attenuated insulin release from isolated islets in the presence of glucose and low function of muscarinic acetylcholine receptor M3, as well as an attenuation of beta cell mass hyperplasia. High levels of butyrylcholinesterase and low levels of insulin in milk may contribute to the OP-induced developmental programming. Our study showed that maternal OP exposure may program insulin release as well as endocrine pancreas structure, thus affecting metabolism in adulthood. Our data suggest that while perinatal OP exposure alone increases the risk for later life T2D, it actually reverses many of the programmed metabolic dysfunction that is induced by postnatal overfeeding. These surprising results may suggest that low-dose administration of acetylcholinesterase inhibitors could be of utility in preventing detrimental developmental programming that is caused by early-life overnutrition.
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Affiliation(s)
- Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil.
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Sandra da Silva Silveira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | | | - Vander Silva Alves
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Claudinéia Conationi da Silva Franco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Rodrigo Mello Gomes
- Department of Physiological Sciences, Federal University of Goias, Goiania, GO, Brazil
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringa, Parana, Brazil
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22
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Moreira VM, Almeida D, da Silva Franco CC, Gomes RM, Palma-Rigo K, Prates KV, Tófolo LP, Malta A, Francisco FA, Pavanello A, Previate C, da Silva Silveira S, Ribeiro TA, Martins IP, de Moraes AMP, Matiusso CCI, Saavedra LPJ, de Barros Machado KG, Fabbri Corá T, Gongora A, Cardozo LE, da Silva PHO, Venci R, Vieira E, de Oliveira JC, Miranda RA, de Souza HM, Miksza D, da Costa Lima LD, de Castro-Prado MAA, Rinaldi W, de Freitas Mathias PC. Moderate exercise training since adolescence reduces Walker 256 tumour growth in adult rats. J Physiol 2019; 597:3905-3925. [PMID: 31210356 DOI: 10.1113/jp277645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022] Open
Abstract
KEY POINTS Cancer growth, cell proliferation and cachexia index can be attenuated by the beneficial programming effect of moderate exercise training, especially if it begins in adolescence. Walker 256 tumour-bearing rats who started exercise training during adolescence did not revert the basal low glycaemia and insulinaemia observed before tumour cell inoculation. The moderate exercise training improved glucose tolerance and peripheral insulin sensitivity only in rats exercised early in adolescence. The chronic effects of our exercise protocol are be beneficial to prevent cancer cachexia and hold clear potential as a nonpharmacological therapy of insulin sensitization. ABSTRACT We tested the hypothesis that moderate exercise training, performed early, starting during adolescence or later in life during adulthood, can inhibit tumour cell growth as a result of changes in biometric and metabolic markers. Male rats that were 30 and 70 days old performed a treadmill running protocol over 8 weeks for 3 days week-1 , 44 min day-1 and at 55-65% V ̇ O 2 max . After the end of training, a batch of rats was inoculated with Walker 256 carcinoma cells. At 15 days after carcinoma cell inoculation, the tumour was weighed and certain metabolic parameters were evaluated. The data demonstrated that physical performance was better in rats that started exercise training during adolescence according to the final workload and V ̇ O 2 max . Early or later moderate exercise training decreased the cachexia index, cell proliferation and tumour growth; however, the effects were more pronounced in rats that exercised during adolescence. Low glycaemia, insulinaemia and tissue insulin sensitivity was not reverted in Walker 256 tumour-bearing rats who trained during adolescence. Cancer growth can be attenuated by the beneficial programming effect of moderate exercise training, especially if it begins during adolescence. In addition, improvement in glucose-insulin homeostasis might be involved in this process.
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Affiliation(s)
- Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Douglas Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | | | | | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Sandra da Silva Silveira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Ana Maria Praxedes de Moraes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Camila Cristina Ianoni Matiusso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Katia Gama de Barros Machado
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Thauany Fabbri Corá
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Adriane Gongora
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Lucas Eduardo Cardozo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Paulo Henrique Olivieri da Silva
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil.,Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Renan Venci
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Elaine Vieira
- Post-Graduate Program of Physical Education, Catholic University of Brasília, Águas Claras, DF, Brazil
| | | | - Rosiane Aparecida Miranda
- Laboratory of Molecular Endocrinology, Carlos Chagas Filho Biophysis Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Daniele Miksza
- Department of Physiology, State University of Londrina, Londrina, PR, Brazil
| | - Luiz Delmar da Costa Lima
- Superior School of Physical Education and Physical Therapy of Goiás State, State University of Goiás, Goiânia, GO, Brazil
| | - Marialba Avezum Alves de Castro-Prado
- Laboratory of Microorganisms Genetics and Mutagenesis, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Wilson Rinaldi
- Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
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23
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Junior MDF, Cavalcante KVN, Ferreira LA, Lopes PR, Pontes CNR, Bessa ADSMD, Neves ÂR, Francisco FA, Pedrino GR, Xavier CH, Mathias PCDF, Castro CHD, Gomes RM. Postnatal early overfeeding induces cardiovascular dysfunction by oxidative stress in adult male Wistar rats. Life Sci 2019; 226:173-184. [DOI: 10.1016/j.lfs.2019.04.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/29/2019] [Accepted: 04/06/2019] [Indexed: 11/17/2022]
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24
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Gomes RM, Junior MDF, Francisco FA, Moreira VM, de Almeida DL, Saavedra LPJ, de Oliveira JC, da Silva Franco CC, Pedrino GR, de Freitas Mathias PC, Natali MRM, Dias MJ, de Morais IJ, de Moraes SMF. Strength training reverses ovariectomy-induced bone loss and improve metabolic parameters in female Wistar rats. Life Sci 2018; 213:134-141. [DOI: 10.1016/j.lfs.2018.10.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/03/2018] [Accepted: 10/17/2018] [Indexed: 01/06/2023]
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25
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Naves LM, Marques SM, Mourão AA, Fajemiroye JO, Xavier CH, de Castro CH, Rebelo ACS, Rosa DA, Gomes RM, Colombari E, Pedrino GR. Involvement of median preoptic nucleus and medullary noradrenergic neurons in cardiovascular and sympathetic responses of hemorrhagic rats. Sci Rep 2018; 8:11276. [PMID: 30050041 PMCID: PMC6062576 DOI: 10.1038/s41598-018-29310-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 02/19/2018] [Accepted: 07/09/2018] [Indexed: 02/07/2023] Open
Abstract
The infusion of hypertonic saline solution (HSS) is known to be beneficial to the treatment of hypovolemic hemorrhage (HH). The central mechanism of HSS-induced cardiovascular and autonomic recovery of animals subjected to HH remains unclear. Hence, the present study evaluated the involvement of median preoptic nucleus (MnPO) and medullary noradrenergic neurons (A1 and A2) in HSS-induced cardiovascular and sympathetic responses in hemorrhagic rats. The wistar rats were subjected to specific lesion of noradrenergic neurons through the nanoinjections of anti-DβH-saporin into caudal ventrolateral medulla (A1 neurons) and nucleus of the solitary tract (A2 neurons). After recovery, mean arterial pressure (MAP) and renal sympathetic nervous activity were recorded. The HH was performed through blood withdrawal until a MAP of 60 mmHg was attained. In sham rats, HSS infusion (3M NaCl) reestablished MAP without change in HH-induced sympathoinhibition. The muscimol (agonist of GABAA receptor) was nanoinjected in MnPO during HH and MnPO inhibition abolished the recovery of MAP and HSS-induced sympathoinhibition. Simultaneous lesions of A1 and A2 abolished MAP restoration and sympathoinhibition after HSS infusion. These results suggest that the recovery of MAP and HSS-induced sympathoinhibition in hemorrhaged rats depend on intact neural projections from A1 and A2 to MnPO.
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Affiliation(s)
- Lara Marques Naves
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Stefanne Madalena Marques
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Aline Andrade Mourão
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | | | - Carlos Henrique Xavier
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Carlos Henrique de Castro
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Ana Cristina Silva Rebelo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Daniel Alves Rosa
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Rodrigo Mello Gomes
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil
| | - Eduardo Colombari
- Departamento de Fisiologia e Patologia, Faculdade de odontologia, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Gustavo Rodrigues Pedrino
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, 74690-900, Goiânia, GO, Brazil.
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26
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Gomes RM, Bueno FG, Schamber CR, de Mello JCP, de Oliveira JC, Francisco FA, Moreira VM, Junior MDF, Pedrino GR, de Freitas Mathias PC, Miranda RA, de Moraes SMF, Natali MRM. Maternal diet-induced obesity during suckling period programs offspring obese phenotype and hypothalamic leptin/insulin resistance. J Nutr Biochem 2018; 61:24-32. [PMID: 30179726 DOI: 10.1016/j.jnutbio.2018.07.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [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: 12/19/2017] [Revised: 05/21/2018] [Accepted: 07/18/2018] [Indexed: 12/11/2022]
Abstract
During the early post-natal period, offspring are vulnerable to environmental insults, such as nutritional and hormonal changes, which increase risk to develop metabolic diseases later in life. Our aim was to understand whether maternal obesity during lactation programs offspring to metabolic syndrome and obese phenotype, in addition we aimed to assess the peripheral glucose metabolism and hypothalamic leptin/insulin signaling pathways. At delivery, female Wistar rats were randomly divided in two groups: Control group (CO), mothers fed a standard rodent chow (Nuvilab); and Diet-induced obesity group (DIO), mothers who had free access to a diet performed with 33% ground standard rodent chow, 33% sweetened condensed milk (Nestlé), 7% sucrose and 27% water. Maternal treatment was performed throughout suckling period. All offspring received standard rodent chow from weaning until 91-day-old. DIO dams presented increased total body fat and insulin resistance. Consequently, the breast milk from obese dams had altered composition. At 91-day-old, DIO offspring had overweight, hyperphagia and higher adiposity. Furthermore, DIO animals had hyperinsulinemia and insulin resistance, they also showed pancreatic islet hypertrophy and increased pancreatic β-cell proliferation. Finally, DIO offspring showed low ObRb, JAK2, STAT-3, IRβ, PI3K and Akt levels, suggesting leptin and insulin hypothalamic resistance, associated with increased of hypothalamic NPY level and decreased of POMC. Maternal obesity during lactation malprograms rat offspring to develop obesity that is associated with impairment of melanocortin system. Indeed, rat offspring displayed glucose dyshomeostasis and both peripheral and central insulin resistance.
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Affiliation(s)
- Rodrigo Mello Gomes
- Department of Physiological Sciences, Federal University of Goiás, Goiânia, GO, Brazil.
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27
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de Oliveira JC, de Moura EG, Miranda RA, de Moraes AMP, Barella LF, da Conceição EPS, Gomes RM, Ribeiro TA, Malta A, Martins IP, Franco CCDS, Lisboa PC, Mathias PCDF. Low-protein diet in puberty impairs testosterone output and energy metabolism in male rats. J Endocrinol 2018; 237:243-254. [PMID: 29599416 DOI: 10.1530/joe-17-0606] [Citation(s) in RCA: 14] [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: 02/26/2018] [Accepted: 03/28/2018] [Indexed: 11/08/2022]
Abstract
We examined the long-term effects of protein restriction during puberty on the function of hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-gonadal (HPG) axes in male rats. Male Wistar rats from the age of 30 to 60 days were fed a low-protein diet (4%, LP). A normal-protein diet (20.5%) was reintroduced to rats from the age of 60 to 120 days. Control rats were fed a normal-protein diet throughout life (NP). Rats of 60 or 120 days old were killed. Food consumption, body weight, visceral fat deposits, lipid profile, glycemia, insulinemia, corticosteronemia, adrenocorticotropic hormone (ACTH), testosteronemia and leptinemia were evaluated. Glucose-insulin homeostasis, pancreatic-islet insulinotropic response, testosterone production and hypothalamic protein expression of the androgen receptor (AR), glucocorticoid receptor (GR) and leptin signaling pathway were also determined. LP rats were hypophagic, leaner, hypoglycemic, hypoinsulinemic and hypoleptinemic at the age of 60 days (P < 0.05). These rats exhibited hyperactivity of the HPA axis, hypoactivity of the HPG axis and a weak insulinotropic response (P < 0.01). LP rats at the age of 120 days were hyperphagic and exhibited higher visceral fat accumulation, hyperleptinemia and dyslipidemia; lower blood ACTH, testosterone and testosterone release; and reduced hypothalamic expression of AR, GR and SOCS3, with a higher pSTAT3/STAT3 ratio (P < 0.05). Glucose-insulin homeostasis was disrupted and associated with hyperglycemia, hyperinsulinemia and increased insulinotropic response of the pancreatic islets. The cholinergic and glucose pancreatic-islet responses were small in 60-day-old LP rats but increased in 120-day-old LP rats. The hyperactivity of the HPA axis and the suppression of the HPG axis caused by protein restriction at puberty contributed to energy and metabolic disorders as long-term consequences.
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Affiliation(s)
- Júlio Cezar de Oliveira
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
- Departamento de Ciências Fisiológicas, Laboratório de Fisiologia Endócrina, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto de Ciências da Saúde, Universidade Federal de Mato Grosso, Sinop, Brazil
| | - Egberto Gaspar de Moura
- Departamento de Ciências Fisiológicas, Laboratório de Fisiologia Endócrina, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rosiane Aparecida Miranda
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Maria Praxedes de Moraes
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Luiz Felipe Barella
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Ellen Paula Santos da Conceição
- Departamento de Ciências Fisiológicas, Laboratório de Fisiologia Endócrina, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rodrigo Mello Gomes
- Departamento de Ciências Fisiológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Ananda Malta
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Isabela Peixoto Martins
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Claudinéia Conationi da Silva Franco
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Patrícia Cristina Lisboa
- Departamento de Ciências Fisiológicas, Laboratório de Fisiologia Endócrina, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratório de Biologia Celular da Secreção, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
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28
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Moreira VM, da Silva Franco CC, Prates KV, Gomes RM, de Moraes AMP, Ribeiro TA, Martins IP, Previate C, Pavanello A, Matiusso CCI, Almeida DL, Francisco FA, Malta A, Tófolo LP, da Silva Silveira S, Saavedra LPJ, Machado K, da Silva PHO, Fabrício GS, Palma-Rigo K, de Souza HM, de Fátima Silva F, Biazi GR, Pereira TS, Vieira E, Miranda RA, de Oliveira JC, da Costa Lima LD, Rinaldi W, Ravanelli MI, de Freitas Mathias PC. Aerobic Exercise Training Attenuates Tumor Growth and Reduces Insulin Secretion in Walker 256 Tumor-Bearing Rats. Front Physiol 2018; 9:465. [PMID: 29867528 PMCID: PMC5953341 DOI: 10.3389/fphys.2018.00465] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 07/24/2017] [Accepted: 04/13/2018] [Indexed: 12/19/2022] Open
Abstract
Aerobic exercise training can improve insulin sensitivity in many tissues; however, the relationship among exercise, insulin, and cancer cell growth is unclear. We tested the hypothesis that aerobic exercise training begun during adolescence can attenuate Walker 256 tumor growth in adult rats and alter insulin secretion. Thirty-day-old male Wistar rats engaged in treadmill running for 8 weeks, 3 days/week, 44 min/day, at 55-65% VO2max until they were 90 days old (TC, Trained Control). An equivalently aged group was kept inactive during the same period (SC, Sedentary Control). Then, half the animals of the SC and TC groups were reserved as the control condition and the other half were inoculated with Walker 256 cancer cells, yielding two additional groups (Sedentary Walker and Trained Walker). Zero mortalities were observed in tumor-bearing rats. Body weight (BW), food intake, plasma glucose, insulin levels, and peripheral insulin sensitivity were analyzed before and after tumor cell inoculation. We also evaluated tumor growth, metastasis and cachexia. Isolated pancreatic islets secretory activity was analyzed. In addition, we evaluated mechanic sensibility. Our results showed improved physical performance according to the final workload and VO2max and reduced BW in trained rats at the end of the running protocol. Chronic adaptation to the aerobic exercise training decreased tumor weight, cachexia and metastasis and were associated with low glucose and insulin levels and high insulin sensitivity before and after tumor cell inoculation. Aerobic exercise started at young age also reduced pancreatic islet insulin content and insulin secretion in response to a glucose stimulus, without impairing islet morphology in trained rats. Walker 256 tumor-bearing sedentary rats also presented reduced pancreatic islet insulin content, without changing insulin secretion through isolated pancreatic islets. The mechanical sensitivity test indicated that aerobic exercise training did not cause injury or trigger inflammatory processes prior to tumor cell inoculation. Taken together, the current study suggests that aerobic exercise training applied during adolescence may mitigate tumor growth and related disorders in Walker 256 tumor-bearing adult rats. Improved insulin sensibility, lower glucose and insulin levels and/or reduced insulin secretion stimulated by glucose may be implicated in this tumor attenuation.
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Affiliation(s)
- Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
- Department of Physical Education, State University of Maringá, Maringá, Brazil
- Department of Physical Education, Ingá University Center, UNINGÁ, Maringá, Brazil
| | | | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
- Department of Physiological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Ana Maria Praxedes de Moraes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Camila Cristina Ianoni Matiusso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Douglas Lopes Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
- Department of Physical Education, State University of Maringá, Maringá, Brazil
- Department of Physical Education, Biomedical Sciences Faculty of Cacoal, Cacoal, Brazil
| | - Sandra da Silva Silveira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Lucas Paulo Jacinto Saavedra
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Katia Machado
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Paulo Henrique Olivieri da Silva
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
- Department of Physical Education, State University of Maringá, Maringá, Brazil
| | - Gabriel S. Fabrício
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | | | | | | | - Taís Susane Pereira
- Laboratory of Microorganisms Genetics and Mutagenesis, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Elaine Vieira
- Post-Graduate Program of Physical Education, Catholic University of Brasília, Águas Claras, Brazil
| | - Rosiane Aparecida Miranda
- Laboratory of Endocrine Physiology, Department of Physiological Sciences, Roberto Alcântara Gomes Biology Institute, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Luiz Delmar da Costa Lima
- Superior School of Physical Education and Physical Therapy of Goiás State, State University of Goiás, Goiânia, Brazil
| | - Wilson Rinaldi
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
- Department of Physical Education, State University of Maringá, Maringá, Brazil
| | | | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
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Gomes RM, de Paulo LF, Bonato Panizzon CPDN, Neves CQ, Cordeiro BC, Zanoni JN, Francisco FA, Piovan S, de Freitas Mathias PC, Longhini R, de Mello JCP, de Oliveira JC, Pedrino GR, da Silva Reis AA, Cecchini AL, Marçal Natali MR. Anti-Diabetic Effects of the Ethyl-Acetate Fraction of Trichilia catigua in Streptozo-tocin-Induced Type 1 Diabetic Rats. Cell Physiol Biochem 2017; 42:1087-1097. [PMID: 28662504 DOI: 10.1159/000478761] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 04/19/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Trichilia catigua A. Juss., known as "catuaba" in Brazil, has been popularly used as a tonic for fatigue, impotence and memory deficits. Previously, our group demonstrated that the ethyl-acetate fraction (EAF) of T. catigua has antioxidant and anti-inflammatory effects. The present study evaluated the anti-diabetic activity of EAF in type 1 diabetic rats. METHODS Male Wistar rats were divided into four groups (N: non-diabetic group, D: type 1 diabetic group, NC: non-diabetic + EAF group and DC: type 1 diabetic + EAF group). The latter two groups were treated with 200 mg/kg EAF. Type 1 diabetes was induced by intravenous streptozotocin (STZ) injection (35 mg/kg). Starting two days after STZ injection, EAF was administered daily by gavage for 8 weeks. RESULTS EAF attenuated body mass loss and reduced food and water intake. EAF improved hyperglycaemia and other biochemical parameters, such as alkaline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Furthermore, the number of pancreatic β-cells and the size of the islets had increased by β-cell proliferation in the DC group. EAF promoted reduction in kidney tissue damage in STZ-induced diabetic rats by reduction of renal fibrosis. CONCLUSION The present study showed that EAF improves glucose homeostasis and endocrine pancreas morphology and inhibits the development of diabetic nephropathy in STZ-induced diabetic rats.
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Affiliation(s)
- Rodrigo Mello Gomes
- Department of Physiological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Camila Quaglio Neves
- Department of Morphological Sciences, State University of Maringá, Maringá, Brazil
| | | | | | | | - Silvano Piovan
- Department of Cell Biology, State University of Maringá, Maringa, Brazil
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Ribeiro TA, Prates KV, Pavanello A, Malta A, Tófolo LP, Martins IP, Oliveira JCD, Miranda RA, Gomes RM, Vieira E, Franco CCDS, Barella LF, Francisco FA, Alves VS, Silveira SDS, Moreira VM, Fabricio GS, Palma-Rigo K, Sloboda DM, Mathias PCDF. Acephate exposure during a perinatal life program to type 2 diabetes. Toxicology 2016; 372:12-21. [PMID: 27765684 DOI: 10.1016/j.tox.2016.10.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 07/10/2016] [Revised: 10/07/2016] [Accepted: 10/15/2016] [Indexed: 01/10/2023]
Abstract
Acephate has been used extensively as an insecticide in agriculture. Its downstream sequelae are associated with hyperglycemia, lipid metabolism dysfunction, DNA damage, and cancer, which are rapidly growing epidemics and which lead to increased morbidity and mortality rates and soaring health-care costs. Developing interventions will require a comprehensive understanding of which excess insecticides during perinatal life can cause insulin resistance and type 2 diabetes. A Wistar rat animal model suggests that acephate exposure during pregnancy and lactation causes alterations in maternal glucose metabolism and programs the offspring to be susceptible to type 2 diabetes at adulthood. Therapeutic approaches based on preventive actions to food contaminated with insecticides during pregnancy and lactation could prevent new cases of type 2 diabetes.
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Affiliation(s)
- Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil.
| | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Júlio Cezar de Oliveira
- Institute of Health Sciences, Federal University of Mato Grosso, 78.557-267 Sinop, MT, Brazil
| | - Rosiane Aparecida Miranda
- Laboratory of Molecular Endocrinology, Carlos Chagas Filho Biophysis Institute, Federal University of Rio de Janeiro, 21.941-902 Rio de Janeiro, RJ, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Neuroscience and Cardiovascular Physiology, Department of Physiological Sciences, Federal University of Goiás, 74690-900 Goiânia, GO, Brazil
| | - Elaine Vieira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Claudinéia Conationi da Silva Franco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Luiz Felipe Barella
- Molecular Signalling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 20892 Bethesda, MD, USA
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Vander Silva Alves
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Sandra da Silva Silveira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Gabriel Sergio Fabricio
- Univ. Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil
| | - Deborah M Sloboda
- Department of Biochemistry and Biomedical Sciences, Ob/Gyn, and Pediatrics MacMaster University-8S 4L8, Hamilton, Ontario, Canada
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá-5790, 87020-900 Maringá, PR, Brazil; UPSP-EGEAL Institut Polytechnique LaSalle de Beauvais, BP, 30313-60026 Beauvais Cedex, France
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Malta A, Souza AAD, Ribeiro TA, Francisco FA, Pavanello A, Prates KV, Tófolo LP, Miranda RA, Oliveira JCD, Martins IP, Previate C, Gomes RM, Franco CCDS, Natali MRM, Palma-Rigo K, Mathias PCDF. Neonatal treatment with scopolamine butylbromide prevents metabolic dysfunction in male rats. Sci Rep 2016; 6:30745. [PMID: 27561682 PMCID: PMC4999897 DOI: 10.1038/srep30745] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/08/2016] [Accepted: 07/07/2016] [Indexed: 01/17/2023] Open
Abstract
We tested whether treatment with a cholinergic antagonist could reduce insulin levels in early postnatal life and attenuate metabolic dysfunctions induced by early overfeeding in adult male rats. Wistar rats raised in small litters (SLs, 3 pups/dam) and normal litters (NLs, 9 pups/dam) were used in models of early overfeeding and normal feeding, respectively. During the first 12 days of lactation, animals in the SL and NL groups received scopolamine butylbromide (B), while the controls received saline (S) injections. The drug treatment decreased insulin levels in pups from both groups, and as adults, these animals showed improvements in glucose tolerance, insulin sensitivity, vagus nerve activity, fat tissue accretion, insulinemia, leptinemia, body weight gain and food intake. Low glucose and cholinergic insulinotropic effects were observed in pancreatic islets from both groups. Low protein expression was observed for the muscarinic M3 acetylcholine receptor subtype (M3mAChR), although M2mAChR subtype expression was increased in SL-B islets. In addition, beta-cell density was reduced in drug-treated rats. These results indicate that early postnatal scopolamine butylbromide treatment inhibits early overfeeding-induced metabolic dysfunctions in adult rats, which might be caused by insulin decreases during lactation, associated with reduced parasympathetic activity and expression of M3mAChR in pancreatic islets.
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Affiliation(s)
- Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Aline Amenencia de Souza
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Flávio Andrade Francisco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Kelly Valério Prates
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Rosiane Aparecida Miranda
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | | | - Isabela Peixoto Martins
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Carina Previate
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | | | | | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringa, Maringá, PR, Brazil
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Parthasarathi R, Gomes RM, Rajapandian S, Sathiamurthy R, Praveenraj P, Senthilnathan P, Palanivelu C. Ligation of the intersphincteric fistula tract for the treatment of fistula-in-ano: experience of a tertiary care centre in South India. Colorectal Dis 2016; 18:496-502. [PMID: 26476011 DOI: 10.1111/codi.13162] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 06/12/2015] [Accepted: 08/01/2015] [Indexed: 12/24/2022]
Abstract
AIM Ligation of the intersphincteric fistula tract (LIFT) is a new sphincter-sparing surgical technique increasingly used to treat fistulae-in-ano yielding good results. The aim of this study was to evaluate its effectiveness in the treatment of complex fistulae-in-ano and to determine factors associated with recurrence and its subsequent management. METHOD A prospective observational study was performed of 167 patients with complex fistula-in-ano treated by LIFT from June 2013 to January 2014. In all patients a LIFT with partial core-out of the fistula tract was performed. RESULTS There were 167 patients of mean age 43.6 ± 12.8 years. Thirty-three fistulae were recurrent. 150 were trans-sphincteric, 16 were intersphincteric and one was a suprasphincteric fistula. The median postoperative stay was 2 (range: 1-14) days (mean = 2.4 days). At follow up there was no change in continence. The median healing time was 4 (range: 1-8) weeks. Two patients developed an intersphincteric abscess needing surgical drainage healing uneventfully. The mean follow up was 12.8 [median = 12 (range: 4-22)] months. The healing rate was 94.1%. Ten (5.9%) patients developed a recurrent fistula that was managed by a second LIFT procedure in seven, a sinus tract excision with curettage in two and seton placement in one. Recurrence was significantly associated with diabetes mellitus and perianal collections and showed an increased incidence with tract abscesses and multiple tracts. CONCLUSION LIFT has a high success rate in complex fistulae-in-ano. Recurrence is related to diabetes mellitus, perianal collections, tract abscesses and multiple tracts and a second LIFT procedure may be feasible and efficient.
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Affiliation(s)
- R Parthasarathi
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - R M Gomes
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - S Rajapandian
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - R Sathiamurthy
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - P Praveenraj
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - P Senthilnathan
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
| | - C Palanivelu
- Department of Surgical Gastroenterology, GEM Hospital and Research Centre, Coimbatore, India
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de Oliveira JC, Gomes RM, Miranda RA, Barella LF, Malta A, Martins IP, Franco CCDS, Pavanello A, Torrezan R, Natali MRM, Lisboa PC, Mathias PCDF, de Moura EG. Protein Restriction During the Last Third of Pregnancy Malprograms the Neuroendocrine Axes to Induce Metabolic Syndrome in Adult Male Rat Offspring. Endocrinology 2016; 157:1799-812. [PMID: 27007071 PMCID: PMC5393358 DOI: 10.1210/en.2015-1883] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metabolic malprogramming has been associated with low birth weight; however, the interplay between insulin secretion disruption and adrenal function upon lipid metabolism is unclear in adult offspring from protein-malnourished mothers during the last third of gestation. Thus, we aimed to study the effects of a maternal low-protein diet during the last third of pregnancy on adult offspring metabolism, including pancreatic islet function and morphophysiological aspects of the liver, adrenal gland, white adipose tissue, and pancreas. Virgin female Wistar rats (age 70 d) were mated and fed a protein-restricted diet (4%, intrauterine protein restricted [IUPR]) from day 14 of pregnancy until delivery, whereas control dams were fed a 20.5% protein diet. At age 91 d, their body composition, glucose-insulin homeostasis, ACTH, corticosterone, leptin, adiponectin, lipid profile, pancreatic islet function and liver, adrenal gland, and pancreas morphology were assessed. The birth weights of the IUPR rats were 20% lower than the control rats (P < .001). Adult IUPR rats were heavier, hyperphagic, hyperglycemic, hyperinsulinemic, hyperleptinemic, and hypercorticosteronemic (P < .05) with higher low-density lipoprotein cholesterol and lower high-density lipoprotein cholesterol, adiponectin, ACTH, and insulin sensitivity index levels (P < .01). The insulinotropic action of glucose and acetylcholine as well as muscarinic and adrenergic receptor function were impaired in the IUPR rats (P < .05). Maternal undernutrition during the last third of gestation disrupts the pancreatic islet insulinotropic response and induces obesity-associated complications. Such alterations lead to a high risk of metabolic syndrome, characterized by insulin resistance, visceral obesity, and lower high-density lipoprotein cholesterol.
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Desouza AL, Pai VD, Gomes RM, Tamhankar A, Saklani AP. Laparoscopic restorative proctocolectomy with transanal mucosectomy and ileal pouch-anal anastomosis--a video vignette. Colorectal Dis 2015; 17:1030. [PMID: 26333064 DOI: 10.1111/codi.13104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/04/2015] [Indexed: 02/08/2023]
Affiliation(s)
- A L Desouza
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, 400012, Maharashtra, India
| | - V D Pai
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, 400012, Maharashtra, India
| | - R M Gomes
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, 400012, Maharashtra, India
| | - A Tamhankar
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, 400012, Maharashtra, India
| | - A P Saklani
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, 400012, Maharashtra, India.
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Gomes RM, Pai VD, Desouza A, Saklani AP. Laparoscopic sphincter-saving surgery for low rectal cancer--a video vignette. Colorectal Dis 2015; 17:546. [PMID: 25827816 DOI: 10.1111/codi.12967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 03/04/2015] [Indexed: 02/08/2023]
Affiliation(s)
- R M Gomes
- Department of Surgical Oncology, Tata Memorial Centre, Ernest Borges Marg, Mumbai, 400012, India
| | - V D Pai
- Department of Surgical Oncology, Tata Memorial Centre, Ernest Borges Marg, Mumbai, 400012, India
| | - A Desouza
- Department of Surgical Oncology, Tata Memorial Centre, Ernest Borges Marg, Mumbai, 400012, India
| | - A P Saklani
- Department of Surgical Oncology, Tata Memorial Centre, Ernest Borges Marg, Mumbai, 400012, India.
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Tófolo LP, da Silva Ribeiro TA, Malta A, Miranda RA, Gomes RM, de Oliveira JC, Abdennebi-Najar L, de Almeida DL, Trombini AB, da Silva Franco CC, Pavanello A, Fabricio GS, Rinaldi W, Barella LF, de Freitas Mathias PC, Palma-Rigo K. Short-term moderate exercise provides long-lasting protective effects against metabolic dysfunction in rats fed a high-fat diet. Eur J Nutr 2014; 54:1353-62. [DOI: 10.1007/s00394-014-0816-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 12/09/2014] [Indexed: 12/19/2022]
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Rinaldi W, Gomes RM, Scomparin DX, Grassiolli S, Ribeiro TA, Fabricio GS, Barella LF, Pavanello A, Trombini AB, Mathias PCDF, de Oliveira JC. Low-intensity and moderate exercise training improves autonomic nervous system activity imbalanced by postnatal early overfeeding in rats. J Int Soc Sports Nutr 2014; 11:25. [PMID: 24914402 PMCID: PMC4049453 DOI: 10.1186/1550-2783-11-25] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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: 10/11/2013] [Accepted: 05/23/2014] [Indexed: 11/17/2022] Open
Abstract
Background Postnatal early overfeeding and physical inactivity are serious risk factors for obesity. Physical activity enhances energy expenditure and consumes fat stocks, thereby decreasing body weight (bw). This study aimed to examine whether low-intensity and moderate exercise training in different post-weaning stages of life is capable of modulating the autonomic nervous system (ANS) activity and inhibiting perinatal overfeeding-induced obesity in rats. Methods The obesity-promoting regimen was begun two days after birth when the litter size was adjusted to 3 pups (small litter, SL) or to 9 pups (normal litter, NL). The rats were organized into exercised groups as follows: from weaning until 90-day-old, from weaning until 50-day-old, or from 60- until 90-days-old. All experimental procedures were performed just one day after the exercise training protocol. Results The SL-no-exercised (SL-N-EXE) group exhibited excess weight and increased fat accumulation. We also observed fasting hyperglycemia and glucose intolerance in these rats. In addition, the SL-N-EXE group exhibited an increase in the vagus nerve firing rate, whereas the firing of the greater splanchnic nerve was not altered. Independent of the timing of exercise and the age of the rats, exercise training was able to significantly blocks obesity onset in the SL rats; even SL animals whose exercise training was stopped at the end of puberty, exhibited resistance to obesity progression. Fasting glycemia was maintained normal in all SL rats that underwent the exercise training, independent of the period. These results demonstrate that moderate exercise, regardless of the time of onset, is capable on improve the vagus nerves imbalanced tonus and blocks the onset of early overfeeding-induced obesity. Conclusions Low-intensity and moderate exercise training can promote the maintenance of glucose homeostasis, reduces the large fat pad stores associated to improvement of the ANS activity in adult rats that were obesity-programmed by early overfeeding.
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Affiliation(s)
- Wilson Rinaldi
- Department of Physical Education, State University of Maringá, Maringá, PR, Brazil
| | - Rodrigo Mello Gomes
- Department of Physiological Sciences, State University of Maringá, Maringá, PR, Brazil
| | | | - Sabrina Grassiolli
- Department of General Biology, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | | | - Luiz Felipe Barella
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Audrei Pavanello
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | - Amanda Bianchi Trombini
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
| | | | - Júlio Cezar de Oliveira
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, PR, Brazil
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Gomes RM, Tófolo LP, Rinaldi W, Scomparin DX, Grassiolli S, Barella LF, de Oliveira JC, Branco RCS, Agostinho AR, Ribeiro TADS, Gravena C, Mathias PCDF. Moderate exercise restores pancreatic beta-cell function and autonomic nervous system activity in obese rats induced by high-fat diet. Cell Physiol Biochem 2013; 32:310-21. [PMID: 23942282 DOI: 10.1159/000354439] [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] [Accepted: 07/11/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Metabolic syndrome has been identified as one of the most significant threats to human health in the 21(st) century. Exercise training has been shown to counteract obesity and metabolic syndrome. The present study aimed to investigate the effects of moderate exercise training on pancreatic beta-cell function and autonomic nervous system (ANS) activity in rats fed a high-fat diet (HFD). METHODS Weaning rats were divided into four groups: rats fed a standard chow or HFD (sedentary, Control-SED and HFD-SED; or exercised, Control-EXE and HFD-EXE, respectively). Exercised rats ran (from 21- to 91-days-old) for 60 minutes (3 times/week) over a 10-week period. Glucose and insulin tolerance tests were performed. Pancreatic islets were isolated to study glucose-induced insulin secretion (GIIS). Parasympathetic and sympathetic nerve electrical signals were measured, and liver samples were processed and histologically analyzed. RESULTS Exercise prevented obesity, insulin resistance, and liver steatosis as well as improved total cholesterol, ALT, and AST levels. Islets from HFD rats showed insulin hypersecretion which was ameliorated by exercise. Exercise decreased vagal nerve activity in the HFD-EXE group and increased the activity of the sympathetic nervous system in both exercised groups. CONCLUSION Exercise prevents obesity and liver steatosis and restores pancreatic beta-cell function and ANS activity in HFD-obese rats.
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Affiliation(s)
- Rodrigo Mello Gomes
- Department of Cell Biology and Genetic, State University of Maringá, Maringá PR Brazil
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Tasca DS, Rudnicki Ł, Gomes RM, Toscano F, Walborn SP. Reliable entanglement detection under coarse-grained measurements. Phys Rev Lett 2013; 110:210502. [PMID: 23745847 DOI: 10.1103/physrevlett.110.210502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Indexed: 06/02/2023]
Abstract
We derive reliable entanglement witnesses for coarse-grained measurements on continuous variable systems. These witnesses never return a "false positive" for identification of entanglement, under any degree of coarse graining. We show that even in the case of Gaussian states, entanglement witnesses based on the Shannon entropy can outperform those based on variances. We apply our results to experimental identification of spatial entanglement of photon pairs.
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Affiliation(s)
- D S Tasca
- SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
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Gomes RM, Nagral S, Agarwal P. Loss of fractured part of a proximally migrated esophageal stent through vomiting. Endoscopy 2012; 44 Suppl 2 UCTN:E234-5. [PMID: 22715011 DOI: 10.1055/s-0032-1308927] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- R M Gomes
- Department of Surgical Gastroenterology, Jaslok Hospital and Research Centre, Mumbai, India.
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Barella LF, de Oliveira JC, Branco RCS, Camargo RL, Gomes RM, Mendes FCV, Miranda RA, Gravena C, Torrezan R, Grassiolli S, de Freitas Mathias PC. Early exposure to a high-fat diet has more drastic consequences on metabolism compared with exposure during adulthood in rats. Horm Metab Res 2012; 44:458-64. [PMID: 22438211 DOI: 10.1055/s-0032-1306300] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The aim of this study was determine whether the introduction of a high-fat diet during the peripubertal phase induces significant changes in body weight control, glucose homeostasis and the parasympathetic tonus compared with the administration of this diet to adult rats. High-fat diet was offered to male Wistar rats at weaning or during adulthood. A group of rats received high-fat diet for 60 days, from weaning to 81-day-old (HF81) or from 60 to 120-day-old (HF120), whereas 2 other groups received a normal-fat diet (i. e., NF81 and NF120). We analyzed adiposity, glucose homeostasis, insulin sensitivity, and vagal nerve activity. High-fat diet increased the accumulation of adipose tissue in all of the rats, but the difference was greater in the rats that were fed the high-fat diet since weaning (p<0.001). The HF rats showed glucose intolerance with high levels of insulin secretion during the glucose tolerance test (p<0.01). Rats that were fed the high-fat diet presented severe insulin resistance, indicated by a low K itt (p<0.01). Interestingly, the HF81 rats exhibited greater insulin resistance compared with the HF120 rats (p<0.05). The recordings of vagus nerve activity showed that the HF rats had higher parasympathetic activity than the NF rats irrespective of age (p<0.01). Our results show that a high-fat diet offered to rats just after weaning or in adulthood both cause impairment of glycemic homeostasis and imbalance in parasympathetic activity. Importantly, the consumption of high-fat diet immediately after weaning has more drastic consequences compared with the consumption of the same diet during adulthood.
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Affiliation(s)
- L F Barella
- Department of Cell Biology and Genetics, Laboratory of Secretion Cell Biology, State University of Maringá, Maringá, Paraná, Brazil
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Rinaldi W, Ribeiro TADS, Marques AS, Fabricio GS, Tófolo LP, Gomes RM, Mendes FCV, Mathias PCDF. Efeito da redução de ninhada sobre as respostas autonômicas e metabólicas de ratos Wistar. REV NUTR 2012. [DOI: 10.1590/s1415-52732012000300002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJETIVO: Este estudo investigou o perfil lipídico e a atividade elétrica dos nervos parassimpático (vago superior) e simpático (localizado na região esplâncnica) de ratos obesos oriundos de ninhada reduzida. MÉTODOS: Foram pesquisados dois grupos distintos, com 12 animas cada um: ninhada padrão, padronizado em nove filhotes por ninhada, e ninhada reduzida, três filhotes por ninhada. O consumo de ração e peso corporal foi acompanhado do desmame até o final do protocolo experimental. Aos 90 dias de idade, os animais foram anestesiados com (Thiopental®) e submetidos ao registro da atividade elétrica dos nervos simpático (vago) e parassimpático (da região esplâncnica); em seguida, foram sacrificados e retiradas e pesadas as gorduras retroperitoneal e periepididimal. Amostras de sangue foram coletadas para dosagens de glicemia, insulinemia, colesterol total, triglicerídeos e lipoproteína de alta densidade colesterol. RESULTADOS: Os ratos de ninhada reduzida apresentaram aumento da ingestão alimentar, peso corporal e tecido adiposo branco, quadros de hiperglicemia, hiperinsulinemia e hipercolesterolemia, aumento dos triglicérides e redução do lipoproteína de alta densidade colesterol. CONCLUSÃO: Quanto à atividade do nervo vago, os ratos ninhada reduzida apresentaram um aumento significativo em relação aos ratos ninhada padrão, e mesmo não havendo diferença na atividade simpática, o modelo ninhada reduzida mostrou-se eficaz para indução da obesidade, dislipidemia, hipercolesterolemia, hiperinsulinemia, hiperglicemia e desequilíbrio autonômico em roedores.
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Branco RCS, de Oliveira JC, Grassiolli S, Miranda RA, Barella LF, Gomes RM, Bataglini LA, Torrezan R, Gravena C, de Freitas Mathias PC. Maternal protein malnutrition does not impair insulin secretion from pancreatic islets of offspring after transplantation into diabetic rats. PLoS One 2012; 7:e30685. [PMID: 22383969 PMCID: PMC3288006 DOI: 10.1371/journal.pone.0030685] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 08/16/2011] [Accepted: 12/22/2011] [Indexed: 12/01/2022] Open
Abstract
Pancreatic islets from adult rats whose mothers were protein restricted during lactation undersecrete insulin. The current work analyzes whether this secretory dysfunction can be improved when the pancreatic islets are grafted into hyperglycemic diabetic rats. Two groups of rats were used: the adult offspring from dams that received a low protein diet (4%) during the initial 2/3 of lactation (LP) and, as a control, the adult offspring from dams that consumed a normal protein diet (23%) during the entire period of lactation (NP). Islets from NP- and LP-rats were transplanted into diabetic recipient rats, which were generated by streptozotocin treatment. The islets were transplanted via the portal vein under anesthesia. The fed blood glucose levels were monitored during the 4 days post-transplantation. Transplanted islets from LP-rats (T LP) decreased the fed glucose levels of diabetic rats 34% (21.37±0.24 mM, p<0.05); however, the levels still remained 2-fold higher than those of the sham-operated controls (6.88±0.39 mM, p<0.05). Grafts with NP-islets (T NP) produced the same effect as the LP-islets in diabetic rats. The high fasting blood glucose levels of diabetic rats were improved by the transplantations. Islet grafts from both rat groups recovered 50% of the retroperitoneal fat mass of the diabetic rats (0.55±0.08 g/100 g of body weight for T NP and 0.56±0.07 g/100 g of body weight for T LP, p<0.05). Because pancreatic islets from both the NP- and LP-rats were able to regulate fasting blood glucose concentrations in hyperglycemic rats, we propose that the altered function of pancreatic islets from LP-rats is not permanent.
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Affiliation(s)
- Renato Chaves Souto Branco
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Júlio Cezar de Oliveira
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Sabrina Grassiolli
- Laboratory of Biology Development, Department of Biology, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Rosiane Aparecida Miranda
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Luiz Felipe Barella
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Luiz Augusto Bataglini
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Rosana Torrezan
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Clarice Gravena
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
| | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Maringá, Brazil
- * E-mail:
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44
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Walborn SP, Salles A, Gomes RM, Toscano F, Souto Ribeiro PH. Revealing hidden Einstein-Podolsky-Rosen nonlocality. Phys Rev Lett 2011; 106:130402. [PMID: 21517361 DOI: 10.1103/physrevlett.106.130402] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Indexed: 05/30/2023]
Abstract
Steering is a form of quantum nonlocality that is intimately related to the famous Einstein-Podolsky-Rosen (EPR) paradox that ignited the ongoing discussion of quantum correlations. Within the hierarchy of nonlocal correlations appearing in nature, EPR steering occupies an intermediate position between Bell nonlocality and entanglement. In continuous variable systems, EPR steering correlations have been observed by violation of Reid's EPR inequality, which is based on inferred variances of complementary observables. Here we propose and experimentally test a new criterion based on entropy functions, and show that it is more powerful than the variance inequality for identifying EPR steering. Using the entropic criterion our experimental results show EPR steering, while the variance criterion does not. Our results open up the possibility of observing this type of nonlocality in a wider variety of quantum states.
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Affiliation(s)
- S P Walborn
- Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil
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Scomparin DX, Grassiolli S, Gomes RM, Torrezan R, de Oliveira JC, Gravena C, Pêra CC, Mathias PCDF. Low-Intensity swimming training after weaning improves glucose and lipid homeostasis in MSG hypothalamic obese mice. Endocr Res 2011; 36:83-90. [PMID: 21539446 DOI: 10.3109/07435800.2010.534750] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [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: 11/13/2022]
Abstract
Low-intensity swimming training, started at an early age, was undertaken to observe glycemic control in hypothalamic obese mice produced by neonatal monosodium l-glutamate (MSG) treatment. Although swimming exercises by weaning pups inhibited hypothalamic obesity onset and recovered sympathoadrenal axis activity, this event was not observed when exercise training is applied to young adult mice. However, the mechanisms producing this improved metabolism are still not fully understood. Current work verifies whether, besides reducing fat tissue accumulation, low-intensity swimming in MSG-weaned mice also improves glycemic control. Although MSG and control mice swam for 15 min/day, 3 days a week, from the weaning stage up to 90 days old, sedentary MSG and normal mice did not exercise at all. After 14 h of fasting, animals were killed at 90 days of age. Retroperitonial fat accumulation was measured to estimate obesity. Fasting blood glucose and insulin concentrations were also measured. Mice were also submitted to ipGTT. MSG obese mice showed fasting hyperglycemia, hyperinsulinemia, and glucose intolerance and insulin resistance. However, the exercise was able to block MSG treatment effects. Higher total cholesterol and triglycerides observed in MSG mice were normalized by exercise after weaning. Exercised MSG animals had higher HDLc than the sedentary group. Data suggest that early exercise training maintains normoglycemia, insulin tissue sensitivity, and normal lipid profile in mice programmed to develop metabolic syndrome.
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Affiliation(s)
- Dionízia Xavier Scomparin
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Paraná, Brazil
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Scomparin DX, Gomes RM, Grassiolli S, Rinaldi W, Martins AG, de Oliveira JC, Gravena C, de Freitas Mathias PC. Autonomic activity and glycemic homeostasis are maintained by precocious and low intensity training exercises in MSG-programmed obese mice. Endocrine 2009; 36:510-7. [PMID: 19856134 DOI: 10.1007/s12020-009-9263-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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] [Received: 03/23/2009] [Accepted: 09/18/2009] [Indexed: 12/13/2022]
Abstract
Current research employed electrical records from superior vagus and sympathetic nerve branch that supply fat retroperitoneal tissue (RS nerve) to investigate whether very moderate swim training in obese-programmed mice would change sympathetic and parasympathetic autonomic nervous system activities. Neonatal mice were treated with monosodium L: -glutamate (MSG), during their first 5 days of life, to induce obesity. Mice started training on weaning, comprising free swimming 3 days/week, 15 min/day for 10 weeks. After 12 h fasting, the nerve electrical signals of the 90-day-old mice were processed to obtain firing rates. Blood samples were collected to measure glucose and insulin levels. Adrenal catecholamine content was measured. MSG treatment caused obesity. Hyperglycemia and hyperinsulinemia in MSG-obese mice, without any change in food intake, were obtained. Vagus firing rates were higher in obese mice than those in lean ones. A decrease in RS nerve activity and lower adrenal catecholamine stores have been observed. Swimming normalized blood glucose and insulin levels and MSG-obesity onset was attenuated by exercise. Vagus activity from obese mice decreased, whereas RS nerve activity and adrenal catecholamine levels increased in trained ones. Results suggest that autonomic activity imbalance and metabolic dysfunctions observed in MSG-obese mice were inhibited by precocious and moderate exercise training.
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Affiliation(s)
- Dionizia Xavier Scomparin
- Laboratory of Secretion Cell Biology, Department of Cell Biology and Genetics, State University of Maringá, Avenida Colombo 5790, Bloco H-67, S/019, Maringá, PR 87020-900, Brazil
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47
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Gomes RM, Salles A, Toscano F, Ribeiro PHS, Walborn SP. Observation of a nonlocal optical vortex. Phys Rev Lett 2009; 103:033602. [PMID: 19659278 DOI: 10.1103/physrevlett.103.033602] [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: 12/19/2008] [Indexed: 05/28/2023]
Abstract
We report the observation of an optical vortex in the correlations of photons produced from spontaneous parametric down-conversion. The singularity appears in a nonlocal coordinate plane consisting of 1 degree of freedom of each photon.
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Affiliation(s)
- R M Gomes
- Instituto de Física, Universidade Federal de Goiás, GO 74.001-970, Brazil
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Sequeira JF, Duarte PC, Madruga IM, Boaventura I, Gomes RM, Miranda MP, Sarmento JL. [Pulmonary embolism--mortality risk]. Rev Port Cardiol 1992; 11:749-57. [PMID: 1476767] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
We conducted a retrospective analysis on 311 patients with clinical diagnosis of pulmonary embolism (PE) in a period of 3 years. 163 patients were excluded based on clinical-laboratorial criteria. The remaining 146 patients had a median age of 69 years (range: 30-91 years). 54% of the patients were male. We found dyspnea (94%), abnormal cardiopulmonary observation (89%), risk factors for venous thromboembolism (74%), tachycardia (53%), cyanosis (49%), and neck vein distension (45%) to be the most frequent findings. 64% of the patients had heart failure, 32% had myocardial ischemia, 13% had cancer, and 11% had myocardial infarction. Lactic dehydrogenase (LDH) was higher than two-fold in 54% of the patients. There was severe hypoxemia in 55% of the cases and hypocapnia in 43% of the cases. Creatinine phosphokinase (CPK) was elevated in 16% of the cases. Electrocardiography was suggestive of PE in 37% of the cases. Echocardiography showed right heart dysfunction in 30% of the cases, 92% of the patients were treated with heparin, 37 patients (25%) died, 54% of which during the first 4 days after admittance. Trying to define an index of mortality in PE we evaluated all patients by discriminant analysis coming up with 14 items with good discriminative power. By approximation of their odds-ratios we determined how many points would correspond to each item in the total sum.(ABSTRACT TRUNCATED AT 250 WORDS)
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Gomes RM, Sanches AT, Gonzalez MA, Sarmento JL. [Coxsackie B4 infection, myopericarditis and diabetes mellitus]. ACTA MEDICA PORT 1991; 4:87-90. [PMID: 1651046] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The authors described a case of acute miopericarditis with evolution towards dilated cardiomiopathy, secondary to Coxsackie B4 infection, in a patient developing a concomitant insulin dependent diabetes (DIDM), admitted to be also an expression of this infection. The pathogenesis and the immunological basis of this aggression is discussed and some therapeutic considerations made.
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Affiliation(s)
- R M Gomes
- Serviço de Medicina I, Hospital de Santa Maria, Lisboa
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Sequeira JF, Gomes RM, Gonzalez MA, Sarmento JL. [Neoplastic hypercoagulability. Apropos of 2 cases with Trousseau syndrome]. ACTA MEDICA PORT 1990; 3:179-83. [PMID: 2220429] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The authors describe two cases with venous thromboembolism and neoplasia (ovary and stomach), which also showed evidence of arterial thromboembolic phenomena--cerebrovascular disease in the 1st case and acute myocardial infarction in the 2nd case--favouring the existence of nonbacterial thrombotic endocarditis. This presentation of neoplastic hypercoagulability is frequently underrated in clinical practice. Pathogenesis, clinical manifestations, etiology, and therapeutics of these syndromes are discussed in relation to the presented cases.
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Affiliation(s)
- J F Sequeira
- Serviço de Medicina I. Hospital de Santa Maria, Lisboa
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