The cellular actions of vasopressin on corticotrophs of the anterior pituitary: resistance to glucocorticoid action.


The cellular actions of vasopressin (AVP) in the anterior pituitary were investigated. HPLC analysis of [3H]inositol-labeled cells indicated that AVP stimulated a rapid increase in inositol-1,4,5 trisphosphate (IP3), inositol-1,4 bisphosphate, and inositol-4 monophosphate levels. While CRF had no effect on basal IP3 levels, it blocked their stimulation by… (More)


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