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Jornal Vascular Brasileiro

versão impressa ISSN 1677-5449

Resumo

SILVA, Alexandre Sérgio  e  ZANESCO, Angelina. Physical exercise, β-adrenergic receptors, and vascular response. J. vasc. bras. [online]. 2010, vol.9, n.2, pp.47-56. ISSN 1677-5449.  http://dx.doi.org/10.1590/S1677-54492010000200007.

Aerobic exercise promotes beneficial effects on the prevention and treatment of diseases such as arterial hypertension, atherosclerosis, venous insufficiency, and peripheral arterial disease. β-adrenergic receptors are present in a variety of cells. In the cardiovascular system, β-adrenergic receptors promote positive inotropic and chronotropic response and vasorelaxation. Although the effect of exercise training has been largely studied in the cardiac tissue, studies focused on the vascular tissue are rare and controversial. This review examines the data from studies using animal and human models to determine the effect of physical exercise on the relaxing response mediated by β-adrenergic receptors as well as the cellular mechanisms involved in this response. Studies have shown reduction, increase, or no effect of physical exercise on the relaxing response mediated by β-adrenergic receptors. Thus, the effects of exercise on the vascular β-adrenergic sensitivity should be more deeply investigated. Furthermore, the physiopathology of the vascular system is an open field for the discovery of new compounds and advances in the clinical practice.

Palavras-chave : β-adrenergic receptors; blood pressure; vascular smooth muscle; physical exercise.

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