Evidence map›Paper›PMID 9502759›Full record

ArticleThe Journal of clinical investigation1998

Apo B100-containing lipoproteins are secreted by the heart.

J Borén, M M Véniant, S G Young

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 123 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Review
  4. Review
  5. Article
  6. Impact ofViruses · 2021
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  7. Mechanisms of Chronic Metabolic Stress in Arrhythmias.Antioxidants (Basel, Switzerland) · 2020
    Review
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  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. MTP -493G/T gene polymorphism is associated with steatosis in hepatitis C-infected patients.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2012
    Article
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

3 authors at 1 institution in 2 countries.

J BorénGladstone Institute of Cardiovascular Disease, University of California, San Francisco, California 94141-9100, USA. jboren@gladstone.ucsf.edu
M M Véniant
S G Young
Gladstone Institutes · US

Funding

STRUCTURAL AND PHYSICAL BIOCHEMICAL ANALYSIS OF APOLIPOPROTEIN EP01HL041633 · NHLBI · J. DAVID GLADSTONE INSTITUTES · PI YOUNG, STEPHEN G · 1989 to 2003
$8.5M
NHLBI NIH HHS HL-41633
6 · The paper itself

Abstract

The apo B gene is expressed in the human heart and in the hearts of human apo B transgenic mice generated with large genomic clones spanning the human apo B gene. [35S]Methionine metabolic labeling experiments demonstrated that apo B100-containing lipoproteins are secreted by human heart tissue and by human apo B transgenic and nontransgenic mouse heart tissue. Density gradient analysis revealed that most of the secreted heart lipoproteins were LDLs, even when the labeling experiments were performed in the presence of tetrahydrolipstatin, an inhibitor of lipoprotein lipase. Western blots with a microsomal triglyceride transfer protein) (MTP)-specific antiserum demonstrated that the microsomes of the heart contain the 97-kD subunit of MTP (the subunit involved in the transfer of lipids and assembly of lipoproteins). Metabolic labeling of mouse heart tissue in the presence of BMS-192951, an MTP inhibitor, abolished lipoprotein secretion by the heart but resulted in the secretion of two apo B proteolytic fragments (80 and 120 kD), which were found in the bottom fraction of the density gradient. These studies reveal that the heart, and not just the liver and intestine, secretes apo B-containing lipoproteins. We speculate that lipoprotein secretion by the heart represents a mechanism for removing excess lipids from the heart.

Indexed as

AnimalsApolipoproteins BBlotting, WesternCarrier ProteinsCentrifugation, Density GradientEnzyme InhibitorsFatty AcidsGene ExpressionHumansIntestinal MucosaLactonesLipoprotein LipaseLipoproteinsLipoproteins, LDLLiverMiceApolipoproteins BCarrier ProteinsEnzyme InhibitorsFatty AcidsLactonesLipoprotein LipaseLipoproteinsLipoproteins, LDLmicrosomal triglyceride transfer proteinOrlistat

Identifiers

PMID9502759
PMCPMC508672
OpenAlexW2048862043

What Socratic holds

Textmetadata
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 Socratic graph.