Andrey Jorge Serra

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BACKGROUND Sustained beta-adrenoreceptor activation promotes cardiac hypertrophy and cellular injury. AIMS To evaluate the cardioprotective effect of exercise on damage induced by beta-adrenergic hyperactivity. METHODS Male Wistar rats were randomised into four groups (n=8 per group): sedentary non-treated control (C), sedentary treated with(More)
Myocardial hypertrophy and dysfunction occur in response to excessive catecholaminergic drive. Adverse cardiac remodelling is associated with activation of proinflammatory cytokines in the myocardium. To test the hypothesis that exercise training can prevent myocardial dysfunction and production of proinflammatory cytokines induced by beta-adrenergic(More)
OBJECTIVE The study was designed to evaluate the effects of strength training (ST) on the bone mineral density (BMD) of postmenopausal women without hormone replacement therapy. METHOD Subjects were randomized into untrained (UN) or trained (TR) groups. The TR group exercised three ST sessions per week for 24 weeks, and body composition, muscular(More)
AIM In this study, the effects of a short-term follow-up intervention by water-based exercise (WE) on indicators of obesity in frail obese older women were investigated. METHODS A total of 28 obese older women (body mass index ≥30 kg/m(2)) aged between 60 and 75 years voluntarily took part in the study. The WE program consisted of 60-min sessions, three(More)
Blood cysts of the heart, benign cardiovascular tumors, are extremely rare in adults. Our literature search found fewer than 20 such cases that have been reported in the past 30 years, all of which involved either the cardiac valves or the left ventricle. This case report describes a 72-year-old man with a right atrial tumor that was found to be a simple(More)
OBJECTIVE The purpose of this study was to investigate the effects of physical exercise on the functional capacity and quality of life in heart failure patients. METHODS Forty-two patients of both sexes with heart failure of NYHA class II and III with different etiologies were randomly divided into untrained or trained groups. The six-month exercise(More)
Osteoarthritis (OA) resulting from injury or disease is associated with increased levels of several matrix metalloproteinases (MMPs), which degrade all components of the complex extracellular matrix in the cartilage. The objective of this study is to investigate the effect of low-level laser therapy (LLLT) on papain-induced joint damage in rats by(More)
OBJECTIVE To assess the level of physical activity in public school teachers. METHODS Cross-sectional study conducted with 1,681 teachers from the city of São Paulo, southeastern Brazil, in 2009. The International Physical Activity Questionnaire short version was applied and the level of physical activity was categorized as low, moderate or high. The(More)
BACKGROUND Gender can influence post-infarction cardiac remodeling. OBJECTIVE To evaluate whether gender influences left ventricular (LV) remodeling and integrin-linked kinase (ILK) after myocardial infarction (MI). METHODS Female and male Wistar rats were assigned to one of three groups: sham, moderate MI (size: 20-39% of LV area), and large MI (size:(More)
OBJECTIVE To evaluate the effects of short-term exercise detraining on the functional fitness of older women after a 12-week water-based exercise (WE) program. METHODS Healthy older women (trained (TR) group) were submitted to 12 weeks WE (three 45 min sessions per week) followed by a 6-week detraining period. A group of aged-matched women without any(More)