Document Detail


Developmental regulation of catecholamine levels during sea urchin embryo morphogenesis.
MedLine Citation:
PMID:  14720589     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Results of a number of pharmacological studies suggest that catecholamines play a regulatory role in cleavage, morphogenesis and cell differentiation during early animal embryonic development. Few studies, however, have actually assayed for levels of catecholamines in these early embryos by methods that are both sensitive and specific. In this investigation the catecholamines dopamine, norepinephrine and epinephrine and their precursor, dopa and metabolites were determined in eight different embryonic stages of the sea urchin, Lytechinus pictus from hatched blastula to late pluteus larva, using high performance liquid chromatography with electrochemical detection. Levels of each of the catecholamines exhibited unique developmental profiles and are consistent with a role for epinephrine in blastula and early gastrula embryos and for norepinephrine in gastrulation. Changes in levels of catecholamine precursor and metabolites suggest a changing pattern of synthetic and metabolic enzyme activity, which can, for the most part, explain the fluctuations in catecholamine levels during development from blastula to the pluteus larva stage.
Authors:
Katherine G Anitole-Misleh; Ken M Brown
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Comparative biochemistry and physiology. Part A, Molecular & integrative physiology     Volume:  137     ISSN:  1095-6433     ISO Abbreviation:  Comp. Biochem. Physiol., Part A Mol. Integr. Physiol.     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-01-14     Completed Date:  2004-10-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806096     Medline TA:  Comp Biochem Physiol A Mol Integr Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  39-50     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, 332 Lisner Hall, George Washington University, 2023 G. St. N.W., Washington, DC 20052, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Catecholamines / analysis,  biosynthesis,  metabolism*
Chromatography, High Pressure Liquid
Models, Biological
Morphogenesis
Sea Urchins / embryology*,  metabolism*
Chemical
Reg. No./Substance:
0/Catecholamines

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


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