Consulta: creatorFacets:"Michelini,L.C."
Registros recuperados: 3
Data/hora: 10/06/2024 09:33:47

Endogenous vasopressin and the central control of heart rate during dynamic exercise
Provedor de dados: 56
Autores: Michelini,L.C.
The present article contains a brief review on the role of vasopressinergic projections to the nucleus tractus solitarii in the genesis of reflex bradycardia and in the modulation of heart rate control during exercise. The effects of vasopressin on exercise tachycardia are discussed on the basis of both the endogenous peptide content changes and the heart rate response changes observed during running in sedentary and trained rats. Dynamic exercise caused a specific vasopressin content increase in dorsal and ventral brainstem areas. In accordance, rats pretreated with the peptide or the V1 blocker into the nucleus tractus solitarii showed a significant potentiation or a marked blunting of the exercise tachycardia, respectively, without any change in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise tachycardia; V1 receptors; Brainstem areas; Peptides; Blood pressure; Training; Rats.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900012

Effect of gender on training-induced vascular remodeling in SHR
Provedor de dados: 56
Autores: Amaral,S.L.; Michelini,L.C.
There is accumulating evidence that physical inactivity, associated with the modern sedentary lifestyle, is a major determinant of hypertension. It represents the most important modifiable risk factor for cardiovascular diseases, which are the leading cause of morbidity and mortality for both men and women. In addition to involving sympathetic overactivity that alters hemodynamic parameters, hypertension is accompanied by several abnormalities in the skeletal muscle circulation including vessel rarefaction and increased arteriole wall-to-lumen ratio, which contribute to increased total peripheral resistance. Low-intensity aerobic training is a promising tool for the prevention, treatment and control of high blood pressure, but its efficacy may differ...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise training; Hypertension; Microcirculation; Arterioles; Capillaries; Venules.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000900001

Time course of training-induced microcirculatory changes and of vegf expression in skeletal muscles of spontaneously hypertensive female rats
Provedor de dados: 56
Autores: Amaral,S.L.; Sanchez,L.S.; Chang,A.J.B.A.; Rossoni,L.V.; Michelini,L.C.
Exercise-induced vessel changes modulate arterial pressure (AP) in male spontaneously hypertensive rats (SHR). Vascular endothelial growth factor (VEGF) is important for angiogenesis of skeletal muscle. The present study evaluated the time course of VEGF and angiogenesis after short- and long-term exercise training of female SHR and Wistar Kyoto (WKY) rats, 8-9 weeks (200-250 g). Rats were allocated to daily training or remained sedentary for 3 days (N = 23) or 13 weeks (N = 23). After training, the carotid artery was catheterized for AP measurements. Locomotor (tibialis anterior and gracilis) and non-locomotor skeletal muscles (temporalis) were harvested and prepared for histologic and protein expression analyses. Training increased treadmill performance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: High blood pressure; Exercise training; Capillary density; VEGF expression; Skeletal muscle angiogenesis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000500012