Photic and neural control of the 24-hour norepinephrine rhythm in the rat pineal gland.
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چکیده
The Relationship of Intracellular Depolarization Rates and Contractility in the Dog Ventricle in Situ: Effects of Positive and Negative Inotropic Agents. JACK K. PRUETT AND EUGENE F. WooDs 1 Calcium Movements in Resting and Stimulated Isolated Rabbit Atria. DAVID G. TEIGER AND ALFRED FARAH 8 Studies on the Cardiovascular Effects of Synthetic Vasopressin. JIR0 NAKANO 19 A New Anorexic Agent, Wy-5244: Cardiovascular Actions and Influence on Sympathomimetic Amines. THOMAS BAUM AND MELVIN I. GLUCKMAN 32 Increased Sympathetic Vasoconstrictor Tone in Dogs Treated Chronically with Mecamylamine. H. VIDRIO AND E. G. PARDO 42 The Negative Inotropic Action of Ephedrine and Its Modification by Various Agents. ALAN M.
منابع مشابه
بررسی ریتم شبانه آنزیم ان - استیل ترانسفراز در غده پینه آل موش صحرائی
Living organisms have multiple biological rhythms. Some of these rhythms are endogenous and some are under the influence of light and dati cydes during 24-hours. Nowadays periodic changes in melatonin secretion from pineal gland and changes in N-acetyl transferase (NAT) activity which influence the melatonin secretion rate has been acknowledged as a basic rhythm. In this study NAT activity in p...
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The activity of serotonin N-acetyltransferase (NATase) in the rat pineal gland exhibits a large (approximately 100-fold) circadian variation, with peak activity occurring in the dark part of the light/dark cycle. Surgical removal of both superior cervical ganglia abolishes this rhythm in enzyme activity. Unilateral ganglionectomy caused a 75% decrease in NATase activity during the dark period i...
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The activity of the enzyme serotonin N-acetyltransferase (NAT) in the rat pineal gland exhibits a large circadian rhythm, with peak activity occurring at night. This rhythm is dependent on stimulation of the pineal gland by neurons whose cell bodies are in the superior cervical ganglia and whose axons reach the gland via the internal carotid nerves (ICNs). Two days after both ICN were cut, crus...
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Nocturnal melatonin production in the pineal gland is under the control of norepinephrine released from superior cervical ganglia afferents in a rhythmic manner, and of cyclic AMP. Cyclic AMP increases the expression of serotonin N-acetyltransferase and of inducible cAMP early repressor that undergo circadian oscillations crucial for the maintenance and regulation of the biological clock. In th...
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ورودعنوان ژورنال:
- The Journal of pharmacology and experimental therapeutics
دوره 157 3 شماره
صفحات -
تاریخ انتشار 1967