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Impact of exercise intensity early after myocardial infarction in the cardiac remodeling process

Grant number: 12/22051-3
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2013
Effective date (End): March 31, 2016
Field of knowledge:Health Sciences - Medicine - Medical Clinics
Principal researcher:Leonardo Antonio Mamede Zornoff
Grantee:Diego Fernando Batista
Home Institution: Faculdade de Medicina (FMB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Cardiac remodeling after myocardial infarction is associated with poor outcome. Thus, strategies that attenuate remodeling improve the prognosis post-infarction.Several studies suggest that exercise training can modulate important cardiovascular actions, including remodeling. However, the best period to initiate the exercise training program after myocardial infarction is unknown. In previous study, in comparison with late exercise, early exercise after coronary occlusion did not attenuate the remodeling process. It is accept that early exercise could increase left ventricular parietal stress, which is a stimulus to progressive remodeling. In this project, we will study the effects of three intensities of exercise (light, moderate, intense), in comparison with sedentary infarcted animals, initiated four days after the coronary occlusion in rats. In addition, we will analyze potential mechanisms involved in the cardiac remodeling process including myocyte sectional area,ventricular function, collagen account, cardiac apoptosis, metalloproteinase 2 and 9, energy metabolism, and inflammatory cytokines.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BATISTA, DIEGO FERNANDO; POLEGATO, BERTHA FURLAN; DA SILVA, RENATA CANDIDO; CLARO, RENAN TURINI; AZEVEDO, PAULA SHMIDT; FERNANDES, ANA ANGELICA; OKOSHI, KATASHI; DE PAIVA, SERGIO ALBERTO RUPP; MINICUCCI, MARCOS FERREIRA; ZORNORFF, LEONARDO ANTONIO MAMEDE. Impact of Modality and Intensity of Early Exercise Training on Ventricular Remodeling after Myocardial Infarction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY, v. 2020, . (18/20790-0, 12/22051-3)

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