Evidence map›Paper›PMID 25118169›Full record

ArticlePloS one2014

Reduced apolipoprotein glycosylation in patients with the metabolic syndrome.

Olga V Savinova, Kristi Fillaus, Linhong Jing, William S Harris, Gregory C Shearer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trafficking of nonesterified fatty acids in insulin resistance and relationship to dysglycemia.American journal of physiology. Endocrinology and metabolism · 2020
    Trial
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  6. SAA4: An Underdog Within the Serum Amyloid a Superfamily?International journal of molecular sciences · 2026
    Review
  7. Article
  8. Oxidised Apolipoprotein Peptidome Characterises Metabolic Dysfunction-Associated Steatotic Liver Disease.Liver international : official journal of the International Association for the Study of the Liver · 2025
    Article
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  12. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Olga V SavinovaCardiovascular Health Research Center, Sanford Research USD, Sioux Falls, South Dakota, United States of America.
Kristi FillausCardiovascular Health Research Center, Sanford Research USD, Sioux Falls, South Dakota, United States of America.
Linhong JingDepartment of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota, United States of America.
William S HarrisDepartment of Internal Medicine, Sanford School of Medicine, University of South Dakota, Vermillion, South Dakota, United States of America.
Gregory C ShearerCardiovascular Health Research Center, Sanford Research USD, Sioux Falls, South Dakota, United States of America; Department of Internal Medicine, Sanford School of Medicine, University of South Dakota, Vermillion, South Dakota, United States of America.
Sanford Research · USSouth Dakota State University · USUniversity of South Dakota · US

Funding

The ubiquitin-proteasome system in cardiac remodelingP20RR017662 · NCRR · UNIVERSITY OF SOUTH DAKOTA · PI HARMON, ERIN B · 2002 to 2011
$18.7M
Niacin, n-3 fatty acids and insulin resistanceR01DK061486 · NIDDK · SANFORD RESEARCH/USD · PI HARRIS, WILLIAM S · 2003 to 2007
$1.7M
NCRR NIH HHS 5P20RR017662-08NCRR NIH HHS P20 RR017662NIDDK NIH HHS 5R01DK061486NIDDK NIH HHS R01 DK061486
6 · The paper itself

Abstract

objectiveThe purpose of this study was to compare the apolipoprotein composition of the three major lipoprotein classes in patients with metabolic syndrome to healthy controls.

methodsVery low density (VLDL), intermediate/low density (IDL/LDL, hereafter LDL), and high density lipoproteins (HDL) fractions were isolated from plasma of 56 metabolic syndrome subjects and from 14 age-sex matched healthy volunteers. The apolipoprotein content of fractions was analyzed by one-dimensional (1D) gel electrophoresis with confirmation by a combination of mass spectrometry and biochemical assays.

resultsMetabolic syndrome patients differed from healthy controls in the following ways: (1) total plasma--apoA1 was lower, whereas apoB, apoC2, apoC3, and apoE were higher; (2) VLDL--apoB, apoC3, and apoE were increased; (3) LDL--apoC3 was increased, (4) HDL--associated constitutive serum amyloid A protein (SAA4) was reduced (p<0.05 vs. controls for all). In patients with metabolic syndrome, the most extensively glycosylated (di-sialylated) isoform of apoC3 was reduced in VLDL, LDL, and HDL fractions by 17%, 30%, and 25%, respectively (p<0.01 vs. controls for all). Similarly, the glycosylated isoform of apoE was reduced in VLDL, LDL, and HDL fractions by 15%, 26%, and 37% (p<0.01 vs. controls for all). Finally, glycosylated isoform of SAA4 in HDL fraction was 42% lower in patients with metabolic syndrome compared with controls (p<0.001).

conclusionsPatients with metabolic syndrome displayed several changes in plasma apolipoprotein composition consistent with hypertriglyceridemia and low HDL cholesterol levels. Reduced glycosylation of apoC3, apoE and SAA4 are novel findings, the pathophysiological consequences of which remain to be determined.

Indexed as

AdultApolipoproteinsCase-Control StudiesFemaleGlycosylationHumansLipoproteins, HDLLipoproteins, IDLLipoproteins, LDLLipoproteins, VLDLMaleMetabolic SyndromeMiddle AgedSerum Amyloid A ProteinApolipoproteinsLipoproteins, HDLLipoproteins, IDLLipoproteins, LDLLipoproteins, VLDLSAA4 protein, humanSerum Amyloid A Protein

Identifiers

PMID25118169
PMCPMC4130598
OpenAlexW2061853852

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.