Estrogen Protects Vasomotor Functions in Rats During Catecholamine Stress
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چکیده
منابع مشابه
Tyrosine hydroxylase activity and catecholamine biosynthesis in the adrenal medulla of rats during stress.
Chronic hypotension and hypoglycemia are known to increase the capacity for catecholamine biosynthesis in the rat adrenal medulla by increasing the maximal velocity of the rate-limiting enzyme, tyrosine hydroxylase (TH). The present report indicates that the gradual increase in maximal TH activity is preceded by a more rapid increase in the affinity of TH for its pterin cofactor. These short-te...
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متن کاملCatecholamine metabolism in hypertensive rats.
The possible role of catecholamines in two forms of experimental hypertension in rats was investigated further. Inbred, spontaneously hypertensive (SH) Wistar rats had unchanged endogenous levels of norepinephrine (NE) in the three tissues studied, and a significantly (P<0.05) decreased rate of NE synthesis (C-tyrosine technique) in heart and brainstem but not in gut, in comparison to normotens...
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ژورنال
عنوان ژورنال: Frontiers in Cardiovascular Medicine
سال: 2021
ISSN: 2297-055X
DOI: 10.3389/fcvm.2021.679240