Document Detail


Senescence-related truncation and multimerization of apolipoprotein A-I in high-density lipoprotein with an elevated level of advanced glycated end products and cholesteryl ester transfer activity.
MedLine Citation:
PMID:  20421239     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To compare the change in lipoprotein metabolism with aging, we analyzed the lipid and protein compositions of individual lipoprotein fractions. Healthy and nonobese elderly participants (elderly group, n = 26) had a serum lipid profile within the normal range, although slightly higher than in young participants (control group, n = 18). However, the elderly group had a twofold higher serum uric acid level and triglyceride (TG):high-density lipoprotein cholesterol ratio. The elderly group had less antioxidant ability and elevated TG content in high-density lipoprotein (HDL) with enhanced cholesteryl ester transfer activity. An elevated level of advanced glycated end products in lipoproteins and fragmentation of apoA-I were present in the elderly group, with detected lower apoA-I level and more multimerized apoA-I in HDL. The protein levels of apoA-I, apoC-III, and serum amyloid A in lipoprotein-deficient serum were increased in the elderly group.
Authors:
Ki-Hoon Park; Dong-Gu Shin; Jae-Ryong Kim; Kyung-Hyun Cho
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-26
Journal Detail:
Title:  The journals of gerontology. Series A, Biological sciences and medical sciences     Volume:  65     ISSN:  1758-535X     ISO Abbreviation:  J. Gerontol. A Biol. Sci. Med. Sci.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-17     Completed Date:  2010-06-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9502837     Medline TA:  J Gerontol A Biol Sci Med Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  600-10     Citation Subset:  AIM; IM    
Affiliation:
School of Biotechnology, Yeungnam University, Gyeongsan 712-749, South Korea.
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MeSH Terms
Descriptor/Qualifier:
Aged
Aging / blood*
Antioxidants / metabolism
Apolipoprotein A-I / blood*,  chemistry*,  isolation & purification,  metabolism
Apolipoprotein C-III / blood
Aryldialkylphosphatase / blood
Cholesterol Ester Transfer Proteins / blood*
Cholesterol, HDL / blood
Glycosylation End Products, Advanced / blood*
Humans
Lipids / blood,  chemistry
Lipoproteins / blood
Lipoproteins, HDL / blood*,  chemistry*
Male
Particle Size
Protein Isoforms / blood
Reference Values
Serum Amyloid A Protein / metabolism
Triglycerides / blood
Uric Acid / blood
Young Adult
Chemical
Reg. No./Substance:
0/Antioxidants; 0/Apolipoprotein A-I; 0/Apolipoprotein C-III; 0/Cholesterol Ester Transfer Proteins; 0/Cholesterol, HDL; 0/Glycosylation End Products, Advanced; 0/Lipids; 0/Lipoproteins; 0/Lipoproteins, HDL; 0/Protein Isoforms; 0/Serum Amyloid A Protein; 0/Triglycerides; 69-93-2/Uric Acid; EC 3.1.8.1/Aryldialkylphosphatase

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


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