Biochemical and Biological Properties of Fish Gonadotropins and Their Subunits: Comparison with Mammalian Hormones

  • Yves A. Fontaine
  • Elisabeth Burzawa-Gérard
Part of the Biochemical Endocrinology book series (BIOEND)


Compared to our knowledge of mammalian gonadotropins, very few data are available on the hormones that play the same function in other vertebrates. An important part of these data have been obtained in fish, a situation that explains in part the presence of this chapter in this volume. Still, however, a preliminary question might well be asked: why study the hormones of these fishy animals? It is a question worth considering, and to which a number of replies can be given. The ichthyologist wants to know how reproduction is regulated in the organisms with which he is concerned. The fish farmer is interested in obtaining hormones with which he will be able to control the sexual development of his stock. The comparative physiologist and biochemist are eager to obtain data on these lower vertebrates and to compare them with what is known in animals that are more extensively studied, especially mammals, in order to outline the evolution of the hormones, of their biological effects, and of their mechanisms of action. The general biologist might find in fish some original models. The pharmacologist will possibly be happy to learn that fish gonadotropins are in fact “analogues” of mammalian gonadotropins and to use these analogues that are so liberally furnished by nature.


Rainbow Trout Oocyte Maturation Chum Salmon Chinook Salmon Oncorhynchus Tshawytscha 
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Abbreviations used in this chapter

aci, c, het, onc, s, ti

prefixes derived from the Latin generic names of species from which purified fish gonadotropins are obtained (see Table I)

b, h, o

letter prefixes denoting, respectively, bovine, human, and ovine gonadotropins


adenylate cyclase activity


1,8-anilinonaphthalene sulfonate


cyclic AMP






gonadotropic hormone (generic term denoting any fish gonadotropin)


human chorionic gonadotropin




protein kinase activity


reduced S-carboxymethylated




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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Yves A. Fontaine
    • 1
    • 2
  • Elisabeth Burzawa-Gérard
    • 1
    • 2
  1. 1.Laboratoire de Physiologie Générale et comparéeMuséum National d’Histoire NaturelleFrance
  2. 2.Laboratoire d’Endocrinologie Comparée AssociéCentre National de la Recherche ScientifiqueParisFrance

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