Document Detail


Coronary fat content evaluated by morphometry in patients with severe atherosclerosis has no relation with serum lipid levels.
MedLine Citation:
PMID:  17401489     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The relationship between lipid serum levels and coronary atherosclerotic plaque fat content was studied in 51 necropsy patients. Serum lipids were measured by standard techniques, during life, in the absence of lipid-lowering drugs. Intima, intimal fat and media areas were measured using a computerized system in cryosections of the odd segments of the right, anterior descending and circumflex coronary arteries stained with Sudan-IV. Mean intimal and lipid areas were 5.74 +/- 1.98 and 1.22 +/- 0.55 mm2 (22.12 +/- 8.48%) in 26 cases with high cholesterol (>or=200 mg/dL) and 4.98 +/- 1.94 and 1.16 +/- 0.66 mm2 (22.75 +/- 9.06%) in 25 cases with normal cholesterol (<200 mg/dL; P > 0.05). Patients with high levels of low-density lipoprotein (>or=130 mg/dL, N = 15) had a higher intima/media area ratio than those with normal levels of low-density lipoprotein (<130 mg/dL, N = 13, P < 0.01). No significant difference in the morphometrical variables was found in groups with high or low serum levels of triglycerides (>or=200 mg/dL, N = 13 vs <200 mg/dL, N = 36) or high-density lipoprotein (>or=35 mg/dL, N = 11 vs <35 mg/dL, N = 17). The association between the morphological measurements and serum levels of cholesterol, its fractions, and triglycerides was also tested and the correlation coefficients were low. Although high cholesterol is a risk factor, we show here that in patients with severe atherosclerosis blood cholesterol and triglyceride levels seem to have little influence on coronary lipid content, indicating that other factors may contribute to arterial lipid deposition and plaque formation.
Authors:
D J Braz; P S Gutierrez; P L da Luz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.]     Volume:  40     ISSN:  0100-879X     ISO Abbreviation:  Braz. J. Med. Biol. Res.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-04-02     Completed Date:  2008-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8112917     Medline TA:  Braz J Med Biol Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  467-73     Citation Subset:  IM    
Affiliation:
Unidade de Ateroscleroses e Laboratório de Patologia, Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Atherosclerosis / blood*,  pathology*
Coronary Vessels / chemistry,  pathology*
Female
Humans
Lipids / blood*
Male
Middle Aged
Risk Factors
Severity of Illness Index
Chemical
Reg. No./Substance:
0/Lipids

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


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