Evidence map›Paper›PMID 3477815›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1987

Familial defective apolipoprotein B-100: low density lipoproteins with abnormal receptor binding.

T L Innerarity, K H Weisgraber, K S Arnold, R W Mahley, R M Krauss, G L Vega, S M Grundy

Open access · greenAbstract readCase Reports
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1987. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 4 pooled it
28.1field-weighted citation impact, top 1% 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

102 citing papers in PubMed, 4 syntheses or guidelines pooled it, 481 citations in OpenAlex.

  1. PCSK9 monoclonal antibodies for the primary and secondary prevention of cardiovascular disease.The Cochrane database of systematic reviews · 2020 · on this map
    Pooled it
  2. PCSK9 monoclonal antibodies for the primary and secondary prevention of cardiovascular disease.The Cochrane database of systematic reviews · 2017 · on this map
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Review
  6. Genetic Testing for Children with Familial Hypercholesterolemia.Journal of atherosclerosis and thrombosis · 2026
    Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Identification and Functional Analysis ofInternational journal of molecular sciences · 2023
    Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Article

42 more citing papers are in PubMed but not listed here.

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

7 authors at 1 institution in 1 country.

T L InnerarityGladstone Foundation Laboratories for Cardiovascular Disease, University of California, San Francisco 94140-0608.
K H Weisgraber
K S Arnold
R W Mahley
R M Krauss
G L Vega
S M Grundy
Gladstone Institutes · US

Funding

FUNCTIONAL DOMAINS OF HUMAN APOLIPOPROTEIN BR01HL036701 · NHLBI · J. DAVID GLADSTONE INSTITUTES · PI RALL, STANLEY C · 1986 to 1988
–
NHLBI NIH HHS HL18NHLBI NIH HHS HL36701
6 · The paper itself

Abstract

Previous in vivo turnover studies suggested that retarded clearance of low density lipoproteins (LDL) from the plasma of some hypercholesterolemic patients is due to LDL with defective receptor binding. The present study examined this postulate directly by receptor binding experiments. The LDL from a hypercholesterolemic patient (G.R.) displayed a reduced ability to bind to the LDL receptors on normal human fibroblasts. The G.R. LDL possessed 32% of normal receptor binding activity (approximately equal to 9.3 micrograms of G.R. LDL per ml were required to displace 50% of 125I-labeled normal LDL, vs. approximately equal to 3.0 micrograms of normal LDL per ml). Likewise, the G.R. LDL were much less effective than normal LDL in competing with 125I-labeled normal LDL for cellular uptake and degradation and in stimulating intracellular cholesteryl ester synthesis. The defect in LDL binding appears to be due to a genetic abnormality of apolipoprotein B-100: two brothers of the proband possess LDL defective in receptor binding, whereas a third brother and the proband's son have normally binding LDL. Further, the defect in receptor binding does not appear to be associated with an abnormal lipid composition or structure of the LDL: the chemical and physical properties of the particles were normal, and partial delipidation of the LDL did not alter receptor binding activity. Normal and abnormal LDL subpopulations were partially separated from plasma of two subjects by density-gradient ultracentrifugation, a finding consistent with the presence of a normal and a mutant allele. The affected family members appear to be heterozygous for this disorder, which has been designated familial defective apolipoprotein B-100. These studies indicate that the defective receptor binding results in inefficient clearance of LDL and the hypercholesterolemia observed in these patients.

Indexed as

Apolipoprotein B-100Apolipoproteins BCells, CulturedFibroblastsHumansHyperlipoproteinemia Type IIInfantKineticsLipoproteins, LDLMaleReceptors, LDLApolipoprotein B-100Apolipoproteins BLipoproteins, LDLReceptors, LDL

Identifiers

PMID3477815
PMCPMC299196
OpenAlexW1977761476

What OpenQuestion 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 OpenQuestion graph.