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Alves RL, Cardoso BRL, Ramos IPR, Oliveira BDS, Dos Santos ML, de Miranda AS, de Almeida TCS, Vieira MAR, Machado FS, Ferreira AJ, de Avelar GF. Physical training improves exercise tolerance, cardiac function and promotes changes in neurotrophins levels in chagasic mice. Life Sci 2019; 232:116629. [PMID: 31276687 DOI: 10.1016/j.lfs.2019.116629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/24/2019] [Accepted: 07/01/2019] [Indexed: 01/04/2023]
Abstract
AIMS To investigate the effects of moderate aerobic physical training on cardiac function and morphology as well as on the levels of glial cell-derived neurotrophic factor (GDNF), nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF) of animals infected with the Y strain of Trypanosoma cruzi. MAIN METHODS Twenty-eight male C57BL/6 mice were distributed into 4 groups: sedentary control (SC), trained control (TC), sedentary infected (CHC) and trained infected (CHT). The infection was performed by intraperitoneal injection of trypomastigote forms and the animals were adapted to treadmill in the week before the beginning of the training protocol, initiated 45 days post infection. Maximal exercise test (TEM) was performed at the baseline as well as at the end of the 4th, 8th and 12th weeks of training. At the end of the 12th week, all animals were evaluated for cardiac morphology and function by echocardiography. KEY FINDINGS CHC group showed a larger area of right ventricle (RVA), increased end-systolic volume and reduction in ejection fraction (EF), stroke volume (SV), cardiac output (CO) and fractional area change (FAC). The training reduced the RVA and improved the FAC of chagasic animals. GDNF level was higher in TC and CHC groups compared to SC in heart and BDNF levels were higher in CHC compared to SC in heart and serum. SIGNIFICANCE Physical training ameliorated the cardiac function of infected animals and promoted adjusts in BDNF and GDNF levels. These findings evidenced these neurotrophins as possible biomarkers of cardiac function responsive to exercise stimulus.
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Affiliation(s)
- Rafael Leite Alves
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Bárbara Ramalho Ladeira Cardoso
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Isalira Peroba Rezende Ramos
- Federal University of Rio de Janeiro, Center of Health Science, Av. Carlos Chagas Filho, 373 Rio de Janeiro, Brazil
| | - Bruna da Silva Oliveira
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Mara Lívia Dos Santos
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Aline Silva de Miranda
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Tatiane Cristine Silva de Almeida
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Maria Aparecida Ribeiro Vieira
- Federal University of Minas Gerais, Department of Physiology and Biophysics, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Fabiana Simão Machado
- Federal University of Minas Gerais, Department of Biochemistry and Immunology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
| | - Anderson José Ferreira
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil.
| | - Gleide Fernandes de Avelar
- Federal University of Minas Gerais, Department of Morphology, Av. Pres. Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, Brazil
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Costa HS, Lima MMO, Figueiredo PHS, Martinelli PM, Camargos ER, Chaves AT, Nunes MCP, Rocha MOC. Prognostic value of serum brain-derived neurotrophic factor levels in patients with Chagas cardiomyopathy. Mem Inst Oswaldo Cruz 2018; 113:e180224. [PMID: 30133549 PMCID: PMC6107101 DOI: 10.1590/0074-02760180224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/03/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Serum brain-derived neurotrophic factor (BDNF) levels have been shown to be lower in patients with Chagas cardiomyopathy (ChC) than in patients with non-dilated chagasic cardiomyopathy. However, its prognostic value was not established in patients with ChC. METHODS Forty-nine patients with ChC (50 ± 7 years, New York Heart Association “NYHA” I-III); were evaluated by echocardiography, exercise testing, and blood analysis. Serum BDNF levels were determined using enzyme-linked immunosorbent assay sandwich. Patients were followed-up, and cardiac death was considered the end-point. The survival analyses were performed using Kaplan-Meier and Cox regression. RESULTS After 39 ± 14 months of follow-up, 12 patients (25%) died. The concentration of 2.5 ng/mL was the optimal cut-off value to predict survival with significant difference between the groups with low (≤ 2.5 ng/mL) and high (> 2.5 ng/mL) BDNF levels (p = 0.006). Lower serum BDNF levels (hazards ratio (HR) 1.1, 95% confidence interval (CI) 1.1-1.4; p = 0.001), peak oxygen uptake (HR 1.2, 95% CI 1.0-1.3; p = 0.009), and left ventricular ejection fraction (HR 0.8, 95% CI 0.7-0.9; p = 0.001) were the independent predictors of survival. The combination of low serum BDNF levels and reduced left ventricular ejection fraction were highly predictive of death (HR 5.6, 95% CI: 1.2-9.7; p = 0.026). CONCLUSION In patients with ChC, reduced serum BDNF levels, especially if associated with systolic function, may provide useful prognostic information.
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Affiliation(s)
- Henrique S Costa
- Universidade Federal de Minas Gerais, Departamento de Clínica Médica, Curso de Pós-Graduação em Infectologia e Medicina Tropical, Belo Horizonte, MG, Brasil
| | - Marcia Maria O Lima
- Universidade Federal dos Vales do Jequitinhonha e Mucuri, Faculdade de Ciências Biológicas e da Saúde, Departamento de Fisioterapia, Diamantina, MG, Brasil
| | - Pedro Henrique S Figueiredo
- Universidade Federal dos Vales do Jequitinhonha e Mucuri, Faculdade de Ciências Biológicas e da Saúde, Departamento de Fisioterapia, Diamantina, MG, Brasil
| | - Patrícia M Martinelli
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, MG, Brasil
| | - Elizabeth Rs Camargos
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, MG, Brasil
| | - Ana Thereza Chaves
- Universidade Federal de Minas Gerais, Departamento de Clínica Médica, Curso de Pós-Graduação em Infectologia e Medicina Tropical, Belo Horizonte, MG, Brasil
| | - Maria Carmo Pereira Nunes
- Universidade Federal de Minas Gerais, Departamento de Clínica Médica, Curso de Pós-Graduação em Infectologia e Medicina Tropical, Belo Horizonte, MG, Brasil
| | - Manoel Otavio C Rocha
- Universidade Federal de Minas Gerais, Departamento de Clínica Médica, Curso de Pós-Graduação em Infectologia e Medicina Tropical, Belo Horizonte, MG, Brasil
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Oliveira NK, Ferreira RN, Lopes SDN, Chiari E, Camargos ERDS, Martinelli PM. Cardiac autonomic denervation and expression of neurotrophins (NGF and BDNF) and their receptors during experimental Chagas disease. Growth Factors 2017; 35:161-170. [PMID: 29117739 DOI: 10.1080/08977194.2017.1395420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Although cardiac dysautonomia is a distinctive feature of Chagas disease, its clinical and functional significance is still being speculated. Neurotrophic factors are potentially involved; however, studies of their effect in this infection are rare. Ultrastructural abnormalities in autonomic varicosities, levels of both nerve growth factor (NGF), and brain-derived neurotrophic factor (BDNF), as well as the expression of their receptors, were analysed in the heart of a rat model of Trypanosoma infection. Predominantly, at the early stage of the infection, cardiac autonomic varicosities displayed several signs of degeneration parallel to the elevation of cardiac levels of NGF, as well as expression of the receptors TrkA and p75NTR. For BDNF and TrkB, the changes were less conspicuous. Data obtained here can contribute to further clarify the factors related to the autonomic nervous system's adaptive changes that could determine the evolution of different clinical forms of Chagas disease; mainly, the cardiac form.
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Affiliation(s)
- Natália Katley Oliveira
- a Programa de Pós-Graduação em Patologia, Faculdade de Medicina , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
| | - Rodrigo Novaes Ferreira
- b Departamento de Morfologia, Instituto de Ciências Biológicas , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
| | - Sara Delaine Nogueira Lopes
- b Departamento de Morfologia, Instituto de Ciências Biológicas , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
| | - Egler Chiari
- c Departamento de Parasitologia, Instituto de Ciências Biológicas , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
| | | | - Patricia Massara Martinelli
- a Programa de Pós-Graduação em Patologia, Faculdade de Medicina , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
- b Departamento de Morfologia, Instituto de Ciências Biológicas , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brasil
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Dalton JE, Glover AC, Hoodless L, Lim EK, Beattie L, Kirby A, Kaye PM. The neurotrophic receptor Ntrk2 directs lymphoid tissue neovascularization during Leishmania donovani infection. PLoS Pathog 2015; 11:e1004681. [PMID: 25710496 PMCID: PMC4339582 DOI: 10.1371/journal.ppat.1004681] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 01/12/2015] [Indexed: 01/31/2023] Open
Abstract
The neurotrophic tyrosine kinase receptor type 2 (Ntrk2, also known as TrkB) and its ligands brain derived neurotrophic factor (Bdnf), neurotrophin-4 (NT-4/5), and neurotrophin-3 (NT-3) are known primarily for their multiple effects on neuronal differentiation and survival. Here, we provide evidence that Ntrk2 plays a role in the pathologic remodeling of the spleen that accompanies chronic infection. We show that in Leishmania donovani-infected mice, Ntrk2 is aberrantly expressed on splenic endothelial cells and that new maturing blood vessels within the white pulp are intimately associated with F4/80(hi)CD11b(lo)CD11c(+) macrophages that express Bdnf and NT-4/5 and have pro-angiogenic potential in vitro. Furthermore, administration of the small molecule Ntrk2 antagonist ANA-12 to infected mice significantly inhibited white pulp neovascularization but had no effect on red pulp vascular remodeling. We believe this to be the first evidence of the Ntrk2/neurotrophin pathway driving pathogen-induced vascular remodeling in lymphoid tissue. These studies highlight the therapeutic potential of modulating this pathway to inhibit pathological angiogenesis.
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Affiliation(s)
- Jane E. Dalton
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Amy C. Glover
- Jack Birch Unit, Department of Biology, University of York, York, United Kingdom
| | - Laura Hoodless
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Eng-Kiat Lim
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Lynette Beattie
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Alun Kirby
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Paul M. Kaye
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
- * E-mail:
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Effect of acute aerobic exercise on serum BDNF levels in patients with Chagas heart disease. Int J Cardiol 2014; 174:828-30. [PMID: 24794957 DOI: 10.1016/j.ijcard.2014.04.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/09/2014] [Accepted: 04/12/2014] [Indexed: 11/23/2022]
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Nunes MCP, Carmo AALD, Rocha MOC, Ribeiro AL. Mortality prediction in Chagas heart disease. Expert Rev Cardiovasc Ther 2014; 10:1173-84. [DOI: 10.1586/erc.12.111] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lima MM, Nunes MCP, Nascimento B, Costa HS, Sousa LA, Teixeira AL, Rocha MOC, Ribeiro ALP. Improvement of the functional capacity is associated with BDNF and autonomic modulation in Chagas disease. Int J Cardiol 2013; 167:2363-6. [DOI: 10.1016/j.ijcard.2012.11.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 11/10/2012] [Indexed: 12/22/2022]
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