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American Zoologist 2001 41(3):380-388; doi:10.1093/icb/41.3.380
© 2001 by The Society for Integrative and Comparative Biology
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Crustacean Hyperglycemic Hormone Family: Old Paradigms and New Perspectives1

Ernest S. Chang2,1
1 Bodega Marine Laboratory, University of California, P.O. Box 247, Bodega Bay, California 94923

I present an overview of recent research on the isolation and characterization of members of the crustacean hyperglycemic hormone (CHH) neuropeptide family. Members of this arthropod-specific family include CHH, molt-inhibiting hormone (MIH), vitellogenesis-inhibiting hormone (VIH), and mandibular organ-inhibiting hormone (MOIH). There are two subfamilies of this neuropeptide group, based upon the presence or absence of a C-terminal CHH precursor-related peptide. There are also sequence motif differences between these subfamilies. Most of the peptides comprising this neuropeptide family are synthesized and released by the eyestalk X-organ/sinus gland complex. Recent experiments have demonstrated the presence of extra-eyestalk cells that produce CHH and the assignment of additional functions to this hormone family.


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