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A administração precoce de hormônio de crescimento resulta em efeitos deletérios na remodelação ventricular após o infarto agudo do miocárdio
(2005-02-01)
Objective: To assess the effect of growth hormone (GH) on myocardial remodeling in infarcted rats. Methods: This study comprised 24 Wistar rats divided into 3 groups as follows: 1) AMI-GH group - comprising 8 rats that ...
Improved systolic ventricular function with normal myocardial mechanics in compensated cardiac hypertrophy
(2002-12-01)
There still controversy about the relation between changes in myocardial contractile function and global left ventricular (LV) performance during stable concentric hypertrophy. To clarify this, we analyzed LV function in ...
The ultrastructure of the Aedes aegypti heart
(Arthropod Structure & Development, 2018)
Growth hormone attenuates skeletal muscle changes in experimental chronic heart failure
(Churchill Livingstone, 2010-04-01)
Objective: This study evaluated the effects of growth hormone (GH) on morphology and myogenic regulatory factors (MRF) gene expression in skeletal muscle of rats with ascending aortic stenosis (AAS) induced chronic heart ...
Sudden cardiac death athletes: a systematic review
(2010-08-03)
Previous events evidence that sudden cardiac death (SCD) in athletes is still a reality and it keeps challenging cardiologists. Considering the importance of SCD in athletes and the requisite for an update of this matter, ...
Down-regulation of MyoD gene expression in rat diaphragm muscle with heart failure
(Wiley-Blackwell, 2008-06-01)
Diaphragm myopathy has been described in patients with heart failure (HF), with alterations in myosin heavy chains (MHC) expression. The pathways that regulate MHC expression during HF have not been described, and myogenic ...
Morphological features of the heart of six mosquito species as revealed by scanning electron microscopy
(International Journal of Tropical Insect Science, 2019)
Heart failure alters MyoD and MRF4 expressions in rat skeletal muscle
(2006-06-01)
Heart failure (HF) is characterized by a skeletal muscle myopathy with increased expression of fast myosin heavy chains (MHCs). The skeletal muscle-specific molecular regulatory mechanisms controlling MHC expression during ...
Efeito do envelhecimento sobre o comportamento mecânico dos músculos papilares de ratos Wistar.
(1993-04-01)
PURPOSE--To evaluate the effects of age on mechanical performance of rat myocardium. METHODS--Left ventricular papillary muscles were isolated from male Wistar rats at 1, 3, 6 and 12 months of age. Muscles were studied ...