Crustacean hyperglycaemic hormone

The first member of the cHH peptide family to be functionally and structurally characterized from crustaceans was the crustacean hyperglycaemic hormone (cHH) of the shore crab, Carcinus maenas [77] cHH got its name from the first function ascribed to this neuropeptide, viz. when injected into the haemolymph of a crustacean, there is a consequential and significant rise in the concentration of glucose in the haemolymph that peaks around 2 hours after injection. This is a relatively straight-forward biological assay to perform cHH does, however, also have other functions which will be outlined below. 

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