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The lipoprotein profile in European eels (Anguilla anguilla) during estradiol-induced vitellogenesis
Luizi, L. (1993). The lipoprotein profile in European eels (Anguilla anguilla) during estradiol-induced vitellogenesis. Belg. J. Zool. 123(Suppl. 1): 48
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276, more
Peer reviewed article  

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Document types: Conference paper; Summary

Keyword
    Fresh water

Author  Top 
  • Luizi, L.

Abstract
    Estradiol-induced vitellogenesis is characterized by a reorchestration of the liver metabolism as well as a modification of numerous plasma parameters. Plasma proteins, lipids, triglycerides and cholesterol concentrations increase suggests major variations of the lipid transport system. A closer approach investigating the profile of each lipoprotein fraction shows the predominance of the LDL (Low Density Lipoprotein) under estrogen treatment while HDL (High Density Lipoprotein) dominates the profile observed in nature. The estimated levels of triglyceride-rich lipoprotein also show a large increase. Such variations, opposite to the mammal ones in similar circumstances are partially explained hy the Lipoprotein Lipase (LPL) distribution and activity under estradiol regulation. In fact, the Salt-Resistant Lipase (SRL) present in fish extrahepatic tissues and activated by the estrogen seems responsible for an excessive removal of HDL from the circulation.

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