... cycle-related changes in biological activity of moult- inhibiting hormone (MIH) and crustacean hyperglycaemic hormone (CHH) in the crab, Carcinus maenas From target to transcript J. Sook Chung and Simon ... determining the inhibitory action of MIH and CHH on the target tissue, receptor binding, a secondmessenger pathway, MIH and CHH peptide and transcript levels in the XO with reference to the moult ... moult- inhibiting hormone (MIH) and crustacean hyperglycaemic hormone (CHH) repress ecdysteroid synthesis of the target tissue(Y-organ) only during intermoult, and that changes in syn-thesis and/ or release of...