Egg development neurosecretory hormone

Egg Development Neurosecretory Hormone Activity in the Mosquito Aedes aegypti... 

M. domestica oostatic hormone seems to Inhibit the release or synthesis of egg development neurosecretory hormone (EDNH) (12), but in mosquitoes the hormone seems to act directly on the ovary (6). R, prolixus oostatic hormone, which has been partially purified (13), is a small peptide of M, 1,411 as determined on Sephadex G-50. Kelly et al. (5) prepared a crude extract of oostatic hormone from M, domestica, injected it into the autogenous mosquito Aedes atropalpus, and demonstrated inhibition of both egg development and ecdysteroid biosynthesis. They suggested that oostatic hormone functions at a point subsequent to release of EDNH. They were unable, however, to exclude the possibility that release of EDNH, itself, was inhibited. 

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