PUMA
Istituto di Fisiologia Clinica     
Del Ry S., Cavallini G., Maltinti M., Bergamini E., Giannessi D. Age-related changes in endothelin-1 receptor subtypes in rat hear. In: Experimental Aging Research, vol. 34 (3) pp. 251 - 266. Routledge Taylor and Francis group, 2008.
 
 
Abstract
(English)
Density, affinity, and subtype distribution of endothelin-1 (ET-1) binding sites were determined in rat cardiac tissue as a function of age in order to evaluate the association of alterations in the endothelin receptor system and aging in the heart. A significant decrease in the receptor subtype ET-A, which represents the 70-80 % of the total receptor population in cardiac tissue of 3-and 12-month-old rats, was observed in 24-month-old rats with respect to the younger groups. These findings indicate an alteration in ET-1 cardiac receptors associated with aging, mainly due to a variation in the receptor subtype distribution.
Subject Age, endothelin, ET-A, ET-B, receptor, heart


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