Document Detail

Seasonal rhythm in the hypothalamo-hypophyseal-adrenal function of the chicken.
MedLine Citation:
PMID:  200066     Owner:  NLM     Status:  MEDLINE    
The seasonal rhythm in hypothalamo-hypophyseal-adrenal function was studied in 3-week-old, meat-hybrid chickens, bred under standard conditions, CRF content in the median eminence and ACTH content in the adenohypophysis showed the maximum in February, the minimum in August, to return practically to the February level by November. Adrenal corticosterone production was maximum in February decreased by May and stayed at the low level for the further months of the year. The increase in autumn of the CRF content in the median eminence and of the ACTH content in the adenohypophysis, with unaltered corticosterone production suggests a reduced functioning of the mechanisms regulating hypothalamic release. It is assumed that the winter maximum in the activity of the corticotropic system is due to the endogenous annual rhythm.
Z Majsa; P Péczely
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Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Acta physiologica Academiae Scientiarum Hungaricae     Volume:  47     ISSN:  0001-6756     ISO Abbreviation:  Acta Physiol Acad Sci Hung     Publication Date:  1976  
Date Detail:
Created Date:  1977-12-29     Completed Date:  1977-12-29     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  0371156     Medline TA:  Acta Physiol Acad Sci Hung     Country:  HUNGARY    
Other Details:
Languages:  eng     Pagination:  111-15     Citation Subset:  IM    
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MeSH Terms
Adrenocorticotropic Hormone / secretion
Chickens / physiology*
Corticosterone / secretion
Corticotropin-Releasing Hormone / secretion
Hypothalamo-Hypophyseal System / physiology*,  secretion
Pituitary-Adrenal System / physiology*,  secretion
Reg. No./Substance:
50-22-6/Corticosterone; 9002-60-2/Adrenocorticotropic Hormone; 9015-71-8/Corticotropin-Releasing Hormone

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