The Paradox of growth Acceleration in Fish

  • José de la Fuente
  • Isabel Guillén
  • Mario P. Estrada
Chapter

Abstract

Growth is a complex and tightly regulated process in fish. The growth hormone (GH) is a polypeptide playing a key role in the process of growth and is synthesized mainly by somatotrophos in the anterior pituitary gland. Release of GH from the pituitary gland is thought to be controlled primarily by hypothalamic factors. Once in the circulation, a substantial proportion of the GH appears to bind to a specific binding protein, probably responsible for the control of the hormone half life in the circulation. After binding to specific cell receptors, GH stimulates, primarily in the liver, Insulin-like growth factor (IGF-I and IGF-II) synthesis and secretion to elicit the growth promoting action in an autocrine and paracrine fashions. IGF also elicits a negative feedback on the secretion of GH in the pituitary gland in tilapia (Guillén et al., in press).

Keywords

Growth Hormone Growth Hormone Level Rous Sarcoma Virus Growth Acceleration Specific Binding Protein 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • José de la Fuente
    • 1
  • Isabel Guillén
    • 1
  • Mario P. Estrada
    • 1
  1. 1.Mammalian Cell Genetics DivisionCentro de Ingeniería Genética y BiotecnologiaHavanaCuba

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