β-Adrenoceptor Antagonist SR59230A Attenuates the Imbalance of Systemic and Myocardial Oxygen Transport Induced by Dopamine in Newborn Lambs

Background In neonates, the increase in O 2 -delivery (DO 2 ) by dopamine is offset by a greater increase in O 2 -consumption (VO 2 ). This has been attributed to β 3 -adrenergic receptors in neonatal brown fat tissue. β 3 receptors in the heart have negative inotropic properties. We evaluated the e...

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Main Authors: Richdeep S. Gill, Po-Yin Cheun, Xiaoyang Yu, Mohammed Al Aklabi, Jeevan Nagendran, Luis G. Quinonez, Ying Qian Li, John Miller, David B. Ross, Ivan M. Rebeyka, Jia Li
Format: Article
Language:English
Published: SAGE Publishing 2012-01-01
Series:Clinical Medicine Insights: Cardiology
Online Access:https://doi.org/10.4137/CMC.S8654