LACTATION ABOLISHES CORTICOTROPIN-RELEASING FACTOR-INDUCED OXYTOCIN SECRETION IN THE CONSCIOUS RAT

被引:37
作者
PATEL, H [1 ]
CHOWDREY, HS [1 ]
LIGHTMAN, SL [1 ]
机构
[1] CHARING CROSS HOSP,CHARING CROSS & WESTMINSTER MED SCH,NEUROENDOCRINOL UNIT,LONDON W6 8RF,ENGLAND
关键词
D O I
10.1210/endo-128-2-725
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
We have assessed the response of plasma oxytocin (OT) to intracerebroventricular CRF-41 in both virgin female and lactating rats. In virgin rats CRF-41 resulted in an increase in plasma OT from 5-30 min after administration. In lactating rats, however, there was a complete abolition of the OT response, even at the highest dose of CRF-41. These data demonstrate another feature of the hormone nonresponsiveness apparent during lactation and suggests that one of the reasons for the lack of stress responses could be a down-regulation of the response to endogenously released CRF-41.
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页码:725 / 727
页数:3
相关论文
共 15 条
[11]   PITUITARY-ADRENAL RESPONSIVENESS DURING LACTATION IN RATS [J].
STERN, JM ;
GOLDMAN, L ;
LEVINE, S .
NEUROENDOCRINOLOGY, 1973, 12 (03) :179-191
[12]  
STERN JM, 1972, NEUROSCI BEHAV, V3, P237
[13]   SERUM PROLACTIN LEVELS IN LACTATING RATS AFTER SUCKLING OR EXPOSURE TO ETHER [J].
TERKEL, J ;
SAWYER, CH ;
BLAKE, CA .
ENDOCRINOLOGY, 1972, 91 (01) :49-&
[14]   POSSIBLE MORPHOLOGICAL BASES FOR SYNCHRONIZATION OF NEURONAL FIRING IN THE RAT SUPRAOPTIC NUCLEUS DURING LACTATION [J].
THEODOSIS, DT ;
POULAIN, DA ;
VINCENT, JD .
NEUROSCIENCE, 1981, 6 (05) :919-929
[15]   SEXUAL DIMORPHISM IN THE POSTERIOR PITUITARY-RESPONSE TO STRESS IN THE RAT [J].
WILLIAMS, TDM ;
CARTER, DA ;
LIGHTMAN, SL .
ENDOCRINOLOGY, 1985, 116 (02) :738-740