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.
机构:
INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE
THEODOSIS, DT
;
POULAIN, DA
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INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE
POULAIN, DA
;
VINCENT, JD
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机构:
INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE
机构:
INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE
THEODOSIS, DT
;
POULAIN, DA
论文数: 0引用数: 0
h-index: 0
机构:
INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE
POULAIN, DA
;
VINCENT, JD
论文数: 0引用数: 0
h-index: 0
机构:
INSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCEINSERM, U176, UNITE RECH NEUROBIOL COMPORTEMENTS, RUE CAMILLE ST SAENS, BORDEAUX, FRANCE