Document Detail

Ultrastructure and lipid content of the liver of the zebrafish, Brachydanio rerio, related to vitellogenin synthesis.
MedLine Citation:
PMID:  627021     Owner:  NLM     Status:  MEDLINE    
The female zebrafish is capable of producing mature eggs on the fifth day of each reproductive cycle. During this five-day period the ultrastructure of hepatocytes undergoes several changes. The number of nuclear pores increases rapidly during spawning, followed by a proliferation of RER within 24 h. Two days after spawning, glycogen has disappeared and the liver contains large amounts of lipids. The lipid droplets are closely surrounded by elongated mitochondria. Golgi complexes are abundant, secreting dense bodies. Four days after spawning the hepatocytes tend to regain their pre-spawning appearance. It is suggested that the changes in the hepatocytes, which coincide with special phases of ovarian activity, are related to vitellogenin synthesis. Steroids, especially estradiol-17beta, may trigger this process in the liver.
J Peute; M A van der Gaag; J G Lambert
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell and tissue research     Volume:  186     ISSN:  0302-766X     ISO Abbreviation:  Cell Tissue Res.     Publication Date:  1978 Jan 
Date Detail:
Created Date:  1978-04-26     Completed Date:  1978-04-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0417625     Medline TA:  Cell Tissue Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  297-308     Citation Subset:  IM    
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MeSH Terms
Endoplasmic Reticulum / ultrastructure
Fishes / physiology*
Glycogen / analysis
Golgi Apparatus / ultrastructure
Lipids / analysis*
Lipoproteins / biosynthesis*
Liver / analysis,  ultrastructure*
Microscopy, Electron
Nuclear Envelope / ultrastructure
Time Factors
Vitellogenins / biosynthesis*
Reg. No./Substance:
0/Lipids; 0/Lipoproteins; 0/Vitellogenins; 9005-79-2/Glycogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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