作者: Scott P. Levick , David B. Murray , Joseph S. Janicki , Gregory L. Brower
DOI: 10.1161/HYPERTENSIONAHA.109.142042
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摘要: Chronic activation of the sympathetic nervous system is a key component cardiac hypertrophy and fibrosis. However, previous studies have provided evidence that also implicate inflammatory cells, including mast cells (MCs), in development The current study investigated potential interaction MCs with system. Eight-week-old male spontaneously hypertensive rats were sympathectomized to establish effect on MC density, myocardial remodeling, cytokine production heart. Age-matched Wistar Kyoto served as controls. Cardiac fibrosis hypertension significantly attenuated left ventricular mass normalized, whereas density was markedly increased rats. Sympathectomy normalized levels interferon-gamma, interleukin 6, 10, but had no 4. effects norepinephrine substance P isolated mechanisms between two. Only elicited degranulation. Substance shown induce angiotensin II by mixed population MCs, lymphocytes, macrophages. These results demonstrate ability neuropeptides regulate cell function, providing mechanism which afferent nerves may interact