THE MODULATION OF FORCE IN ISOLATED RAT EGTATREATED ANOCOCCYGEUS MUSCLE BY PHOSPHATE, CYCLIC AMP AND NORADRENALINE
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چکیده
منابع مشابه
High concentrations of KCl release noradrenaline from noradrenergic neurons in the rat anococcygeus muscle.
The aim of the present study was to investigate the effects of high concentrations of KCl in releasing noradrenaline from sympathetic nerves and its actions on postsynaptic alpha-adrenoceptors. We measured the isotonic contractions induced by KCl in the isolated rat anococcygeus muscle under different experimental conditions. The contractile responses induced by KCl were inhibited by alpha-adre...
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15 صفحه اولCyclic AMP modulation of adrenoreceptor-mediated arterial smooth muscle contraction
We examined the effects of cyclic AMP (cAMP) on the intracellular Ca2+ release in both the intact and skinned arterial smooth muscle. The amount of Ca2+ in the sarcoplasmic reticulum (SR) was estimated indirectly by caffeine-induced contraction of the skinned preparation and directly by caffeine-stimulated 45Ca efflux from the previously labeled skinned preparation. The norepinephrine-induced r...
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ژورنال
عنوان ژورنال: Quarterly Journal of Experimental Physiology
سال: 1989
ISSN: 0144-8757
DOI: 10.1113/expphysiol.1989.sp003365