Stressful stimuli evoke complex endocrine, autonomic, and behavioral responses that are
extremely variable and specific depending on the type and nature of the stressors. We first …

Exposure of an organism to any of a variety of stressors markedly activates the
sympathoadrenal and hypothalamic-pituitary-adrenocortical systems. Interactions of these …

Tyrosine hydroxylase Page 108 TYROSINE HYDROXYLASE By SEYMOUR KAUFMAN,
Laboratory of Neurochemistry, National Institute of Mental Health, Bethesda, Maryland …

The physiology and biochemistry of the adrenal medulla were fully reviewed in 1975 in the
Hax&oolc ofPhysio@ l/(32, 63,108,118,140,233,239). We have taken that volume as the …

Abstract Exposure of male Sprague-Dawley rats to acute sound stress (2 s, 110 dB sound
pulses presented randomly every minute for 1 h) increases the in vitro activity of cortical and …

Stress stimulates the sympathoadrenal system, causing activation of the catecholamine
biosynthetic enzymes. Here we examine the changes of gene expression of tyrosine …

Long‐term cold exposure (5–7 days) is known to induce concomitant increases in the levels
of adrenomedullary tyrosine hydroxylase (TH) RNA, protein, and enzyme activity. In this …

The tyrosine hydroxylase (TH) gene encodes the rate-limiting enzyme in the biosynthesis of
catecholamines. We have investigated the roles of two elements of the TH promoter, the TH …

The administration of guanethidine to newborn rats has been shown to produced a
permanent sympathectomy with potential advantages over immunosympathectomy and 6 …

Exposure of rats to cold increases the content of tyrosine hydroxylase [EC 1.14. 16.2; L-
tyrosine, tetrahydropteridine: oxygen oxidoreductase (3-hydroxylating)] in adrenal medulla …