Somatostatin tonically inhibits growth hormone secretion in domestic fowl

in Journal of Endocrinology
Authors:
S. Harvey
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S.-K. Lam
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T. R. Hall
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ABSTRACT

Passive immunization of immature chickens with sheep somatostatin (SRIF) antiserum promptly increased the basal plasma GH concentration and augmented TRH-induced GH secretion. Although exogenous SRIF had no inhibitory effect on the basal GH concentration in untreated birds or birds pretreated with non-immune sheep serum, it suppressed the stimulatory effect of SRIF immunoneutralization on GH secretion. These results suggest that SRIF is physiologically involved in the control of GH secretion in birds, in which it appears to inhibit GH release tonically.

J. Endocr. (1986) 111, 91–97

 

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