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beta blocker |
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beta blocker [′bād·ə¦bläk·ər] (neuroscience) An adrenergic blocking agent capable of blocking nerve impulses to special sites (beta receptors) in the cerebellum; reduces the rate of heartbeats and the force of heart contractions. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This presentation concluded that CK-1122534 increases the fractional shortening in ventricular myocytes (a measure of cardiac contractility) in a dose-dependent manner, does not increase the calcium transient, does not inhibit phosphodiesterase (PDE) activity and is active in the presence of a beta-adrenergic blocker. The effects of cardioselective (Metoprolol) and a nonselective (Propranolol) beta-adrenergic blocker on the response to dynamic exercise in normal men. |
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