title: [Insulin-like growth factors and gonadal regulation in fish].
abstract: Recent data showing the occurrence of IGF in fish, mainly teleostean fish, and their biological activity in gonads are reviewed. IGF-I does occur in all vertebrates and first evidence of IGF-II occurrence in fish has been reported. IGF-I is expressed in the testis and the ovary, and receptors for the peptide have been demonstrated in both gonads. Besides, IGF-I seems implied in spermatogonial proliferation and in oocyte maturation. Both germinal cells and somatic cells could be responsive to IGF-I stimulation.
authors.affiliation: Laboratoire de physiologie des poissons, Institut national de la recherche agronomique, Rennes, France.
authors.forename: A
authors.initials: A
authors.lastname: Fostier
authors.forename: F
authors.initials: F
authors.lastname: Le Gac
authors.forename: M
authors.initials: M
authors.lastname: Loir
mesh_terms: D000818:Animals; D005399:Fishes; D006066:Gonads / Q000737:chemistry / Q000187:drug effects* / Q000254:growth & development; D017451:Receptors, Somatomedin / Q000502:physiology; D013002:Somatomedins / Q000032:analysis / Q000145:classification / Q000502:physiology*
chemical_list: D017451:Receptors, Somatomedin; D013002:Somatomedins
vernacular_title: Facteurs de croissance de type insulinique et régulation gonadique chez les poissons.