Source:http://linkedlifedata.com/resource/pubmed/id/19592048
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
2009-10-19
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pubmed:abstractText |
Apolipoprotein (apo) B-48 is the only specific marker of intestinal lipoproteins. We evaluated a novel enzyme-linked immunosorbent assay (ELISA) standardized with recombinant apo B-48 to measure apo B-48 in plasma and triglyceride-rich lipoproteins (TRLs, density <1.006 g/mL). Coefficients of variation were less than 2.5%. Assay values correlated well (r = 0.82, P < .001) with values obtained by gel scanning of TRLs (n = 75 samples); however, the gel scanning method yielded values that were about 50% lower than ELISA values. About 60% to 70% of apo B-48 was found in TRLs. In 12 healthy subjects, median fasting plasma apo B-48 levels were 0.51 mg/dL and were increased by 121% to 147% in the fed state. In 63 obese subjects, median fasting apo B-48 values were 0.82 mg/dL; and feeding resulted in almost no change in total cholesterol, non-high-density lipoprotein cholesterol, or total apo B values, whereas triglyceride, remnant lipoprotein cholesterol, and apo B-48 levels were significantly higher (P < .05; by +73%, +58%, and +106%), and direct low-density lipoprotein cholesterol and direct high-density lipoprotein cholesterol were significantly lower (P < .001, by -13% and -20%) than fasting values. Relative to controls, 270 hyperlipidemic subjects had significantly higher (P < .001, +115%) fasting total apo B and higher apo B-48 values (P = .06, +37%). Our data indicate that the apo B-48 ELISA tested provides highly reproducible results and is excellent for research studies. Median apo B-48 values in healthy subjects are about 0.5 mg/dL and increase more than 100% in the fed state. Elevated levels are observed in obese and hyperlipidemic subjects.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Apolipoprotein B-48,
http://linkedlifedata.com/resource/pubmed/chemical/Cholesterol,
http://linkedlifedata.com/resource/pubmed/chemical/Cholesterol, HDL,
http://linkedlifedata.com/resource/pubmed/chemical/Cholesterol, LDL,
http://linkedlifedata.com/resource/pubmed/chemical/Lipoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Triglycerides
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1532-8600
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
58
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1536-42
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pubmed:meshHeading |
pubmed-meshheading:19592048-Apolipoprotein B-48,
pubmed-meshheading:19592048-Body Mass Index,
pubmed-meshheading:19592048-Cholesterol,
pubmed-meshheading:19592048-Cholesterol, HDL,
pubmed-meshheading:19592048-Cholesterol, LDL,
pubmed-meshheading:19592048-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:19592048-Fasting,
pubmed-meshheading:19592048-Female,
pubmed-meshheading:19592048-Humans,
pubmed-meshheading:19592048-Hyperlipidemias,
pubmed-meshheading:19592048-Lipoproteins,
pubmed-meshheading:19592048-Male,
pubmed-meshheading:19592048-Middle Aged,
pubmed-meshheading:19592048-Obesity,
pubmed-meshheading:19592048-Postprandial Period,
pubmed-meshheading:19592048-Reference Values,
pubmed-meshheading:19592048-Triglycerides
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pubmed:year |
2009
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pubmed:articleTitle |
Fasting and postprandial apolipoprotein B-48 levels in healthy, obese, and hyperlipidemic subjects.
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pubmed:affiliation |
Lipid Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, N.I.H., Extramural
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