... biological activity of MIH and CHHduring precisely timed stages of the moult cycle of Carcinusto determine changes in: (a) potency of these peptides in repressing ecdysteroid synthesis; (b) receptor ... level. In view of these observations, we also investigated levels of MIH and CHH peptides in the sinus gland and levels of transcripts in XO neurones during the moult cycle, to seewhether significant ... Kawakami,T., Aimoto, S. & Sonobe, H. (2000) Changes in the amounts of the molt-inhibiting hormone in sinus glands during the molt cycle of the American crayfish, Procambarus clarkii. Zool. Sci....