Document Detail


Lipoprotein lipase in lactating and neonatal northern fur seals: exploring physiological management of energetic conflicts.
MedLine Citation:
PMID:  12507618     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Otariid lactation and neonatal growth are cyclical processes tied to maternal foraging and nursing patterns (i.e. at sea and on land). Both mother and pup undergo repeated shifts from a positive to a negative energy balance, the physiological mechanisms of which are unclear. We measured plasma and tissue lipoprotein lipase (LPL) in free-ranging northern fur seal mother-pup pairs throughout the first month of lactation. Plasma LPL levels were similar in lactating females (11.3-15.9 U) and growing neonates (8.2-15.2 U). Mammary LPL activity was variable, but highest during the attendance period (3.1 U), while maternal blubber LPL was consistently low (<0.5 U). Neonatal blubber LPL activity was also low (0.2-0.4 U) in accordance with their low growth rates and relatively limited blubber deposition.
Authors:
J E Mellish; T R Loughlin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Comparative biochemistry and physiology. Part A, Molecular & integrative physiology     Volume:  134     ISSN:  1095-6433     ISO Abbreviation:  Comp. Biochem. Physiol., Part A Mol. Integr. Physiol.     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2002-12-31     Completed Date:  2003-07-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9806096     Medline TA:  Comp Biochem Physiol A Mol Integr Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  147-56     Citation Subset:  IM    
Affiliation:
Department of Marine Biology, Texas A&M University, Galveston, TX 77551, USA. joann-mellish@alsakasealife.org
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / metabolism
Animals
Animals, Newborn
Body Weight
Energy Metabolism / physiology*
Female
Fur Seals / metabolism*
Lactation / physiology*
Lipoprotein Lipase / blood*
Male
Mammary Glands, Animal / metabolism
Chemical
Reg. No./Substance:
EC 3.1.1.34/Lipoprotein Lipase

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


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