Ultradian rhythm of growth hormone secretion and sleep in the adult male rat.
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چکیده
منابع مشابه
Subcellular dynamics of somatostatin receptor subtype 1 in the rat arcuate nucleus: receptor localization and synaptic connectivity vary in parallel with the ultradian rhythm of growth hormone secretion.
Growth hormone (GH) secretion in male rats exhibits a 3.3 h ultradian rhythm generated by the reciprocal interaction of GH-releasing hormone (GHRH) and somatostatin (SRIF). SRIF receptor subtypes sst(1) and sst(2) are highly expressed in GHRH neurons of the hypothalamic arcuate nucleus (ARC). We previously demonstrated an ultradian oscillation in binding of SRIF analogs to the ARC in relation t...
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متن کامل[The relationship between growth hormone secretion and the sleep-wakefulness cycle in the immature rat].
In order to study the relationship between growth hormone (GH) secretion and the sleep-wakefulness cycle in the rat, 29- to 31-day-old male and female rats were bled serially through an intracardiac cannula at 10-min intervals from 1200 to 1800 h. EEGs recorded continuously during the blood sampling period were scored into wakefulness and sleep, and the amount of sleep for every 10 min was plot...
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The detailed profile of prolactin (PRL) secretion in 22-24 and 29-31 days old female rats was investigated by serial blood sampling through an intracardiac cannula at 15-min intervals for each of the 9 or 10-h periods beginning at 09.00 or 10.00 and 22.00 h. By analysis of the power spectrum and the least squares method the time series of PRL concentrations which were measured by RIA were found...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1984
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1984.sp015337