Results 211 to 220 of about 95,877 (267)

Chemical Structure of Corticosterone

Nature, 1938
THE adrenal gland produces a hormone which is essential to life. During the last two years, several workers have succeeded in isolating, from purified preparations of the cortical hormone, a number of crystalline compounds. Among these substances corticosterone and dehydro-corticosterone possess the greatest biological activity. The structures (I) and (
MARGUERITE STEIGER, T. REICHSTEIN
exaly   +2 more sources

Rapid corticosterone pulses

Journal of Steroid Biochemistry, 1983
If micro-sampling techniques are used in conjunction with a highly sensitive radioimmunoassay procedure, it is possible to obtain repeated rapid measurements of plasma corticosterone concentrations from unanesthetized rats. Such a procedure reveals the existence of rapid corticosterone pulses with a duration of less than 60 s and amplitudes as great as
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Corticosterone in Chicken Eggs

Annals of the New York Academy of Sciences, 2005
Abstract: Birds are discussed as models for prenatal stress. In this study, several experiments were conducted to gain basic knowledge of if, how, and when maternal adrenocortical activity is reflected by corticosterone concentrations in the egg. Radiolabeled corticosterone was administered to 10 laying hens to investigate the uptake into as well as ...
S, Rettenbacher, E, Möstl, R, Hackl, R, Palme   +3 more
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Corticosterone's dual metabolic actions

Life Sciences, 1989
Corticosterone possesses two distinctly opposite metabolic actions. The actions are strictly dose-dependent and are linked to type I and type II corticosteroid receptor binding. These conclusions are drawn from continuous infusion studies where corticosterone yields a bitonic dose-response curve for body weight gain and feeding efficiency.
L, Devenport, A, Knehans, A, Sundstrom, T, Thomas   +3 more
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Enzyme immunoassay of corticosterone

Journal of Steroid Biochemistry, 1979
Abstract Enzyme immunoassay of corticosterone was developed using alkaline phosphatase as a labelling enzyme. Serum corticosterone was measured by this system after the extraction and purification of corticosterone by Sephadex LH-20 column chromatography.
Y, Kobayashi, T, Ogihara, Y, Nishitani, F, Watanabe, Y, Kumahara   +4 more
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Corticosterone Half-Life in Children

Archives of Pediatrics & Adolescent Medicine, 1964
Corticosterone (4-pregnene-11 β, 21 diol-3,20-dione; compound B) is a major product of adrenal steroidogenesis in most animal species. 1 In man, it is present in peripheral blood 2-12 and in adrenal vein effluent 3,13-15 in quantities second only to cortisol.
E R, HUGHES, R S, ELY, D J, CHODOS, A K, DONE, J F, KIRSCHVINK, L E, AINGER, V C, KELLEY   +6 more
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Rats orally self-administer corticosterone

Brain Research, 1993
Corticosterone, the major glucocorticoid in the rat, may modulate the reinforcing properties of addictive drugs as well as act as a positive reinforcer for intravenous self-administration. Since glucocorticoids are generally administered to humans via the oral route, we examined the ability of corticosterone to induce oral self-administration in the ...
V, Deroche, P V, Piazza, J M, Deminière, M, Le Moal, H, Simon   +4 more
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Corticosterone rhythm of mouse adrenal in relation to serum corticosterone and sampling

American Journal of Physiology-Legacy Content, 1959
Under conditions standardized for light-synchronized periodicity analysis the corticosterone content of mouse adrenals undergoes significant 24-hour periodic changes. In mature males of the B1 stock, glandular hormone content fluctuates by approximately 50% around its day-mean, accounting amplitude-wise for about one-half of the periodic change in ...
F, HALBERG, P G, ALBRECHT, J J, BITTNER
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A radioimmunoassay for plasma corticosterone

Steroids, 1972
Abstract A radioimmunoassay for plasma corticosterone has been developed. Antiserum against corticosterone was produced in rabbits immunized with corticosterone -21- hemisuccinate conjugated to bovine serum albumin. The assay was practical and reliable. The coefficient of variation between assays was ± 23% and among assays was ± 8%.
H A, Gross, H J, Ruder, K S, Brown, M B, Lipsett   +3 more
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Rat and Mouse Brain Corticosterone

Endocrinology, 1972
A procedure has been developed for determining the amount of corticosterone in mouse and rat brains. Recovery of corticosterone was shown to be between 80 and 90%. Using this procedure, values for basal levels of brain corticosterone have been obtained.
J C, Butte, R, Kakihana, E P, Noble
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