Evidence map›Paper›PMID 24122718›Full record

ArticleCirculation research2013

Loss of plasma proprotein convertase subtilisin/kexin 9 (PCSK9) after lipoprotein apheresis.

Hagai Tavori, Ilaria Giunzioni, MacRae F Linton, Sergio Fazio

Abstract read
In one paragraph

Article in Circulation research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
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

28 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Familial Hypercholesterolemia and Lipoprotein Apheresis.Journal of atherosclerosis and thrombosis · 2019
    Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Threshold Effects of Circulating Angiopoietin-Like 3 Levels on Plasma Lipoproteins.The Journal of clinical endocrinology and metabolism · 2017
    Article
  16. PCSK9 and Atherosclerosis - Lipids and Beyond.Journal of atherosclerosis and thrombosis · 2017
    Review
  17. Review
  18. Article
  19. Review
  20. PCSK9 inhibitors in the prevention of cardiovascular disease.Journal of thrombosis and thrombolysis · 2016
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Hagai TavoriFrom the Section of Cardiovascular Disease Prevention, Division of Cardiovascular Medicine, Department of Medicine (H.T., I.G., M.F.L., S.F.), and Departments of Pharmacology (M.F.L.) and Pathology, Immunology and Microbiology (S.F.), Vanderbilt University Medical Center, Nashville, TN.
Ilaria Giunzioni
MacRae F Linton
Sergio Fazio

Funding

Vanderbilt Mouse Metabolic Physiology CenterU24DK059637 · NIDDK · VANDERBILT UNIVERSITY · PI WASSERMAN, DAVID H · 2001 to 2015
$14.9M
Vanderbilt Mouse Metabolic Phenotyping CenterU2CDK059637 · NIDDK · VANDERBILT UNIVERSITY · PI WASSERMAN, DAVID H · 2016 to 2021
$6.3M
PCSK9, Lipoprotein receptors, and AtherosclerosisR01HL106845 · NHLBI · VANDERBILT UNIVERSITY · PI FAZIO, SERGIO · 2011 to 2014
$2.0M
Mechanisms for Dysfunctional HDL Formation in Familial HypercholesterolemiaR01HL111945 · NHLBI · VANDERBILT UNIVERSITY · PI LINTON, MACRAE F · 2012 to 2013
$920k
NHLBI NIH HHS R01 HL106845NHLBI NIH HHS R01-HL106845NHLBI NIH HHS R01 HL111945NHLBI NIH HHS R01-HL111945NIDDK NIH HHS DK59637NIDDK NIH HHS U24 DK059637
6 · The paper itself

Abstract

rationaleLipoprotein apheresis (LA) reduces low-density lipoprotein (LDL) levels in patients with severe familial hypercholesterolemia (FH). We have recently reported that >30% of plasma proprotein convertase subtilisin/kexin 9 (PCSK9) is bound to LDL, thus we predicted that LA would also reduce plasma PCSK9 levels by removing LDL.

objectivePre- and post-apheresis plasma from 6 patients with familial hypercholesterolemia on 3 consecutive treatment cycles was used to determine changes in PCSK9 levels. METHODS AND

resultsLA drastically reduced plasma LDL (by 77 ± 4%). Concomitantly, PCSK9 levels fell by 52 ± 5%, strongly correlating with the LDL drop (P=0.0322; r(2)=0.26), but not with decreases in triglyceride (49 ± 13%) or high-density lipoprotein levels (18 ± 2%). Levels of albumin, creatinine, and CK-MB did not show significant changes after LA. Similar to LDL, PCSK9 levels returned to pretreatment values between cycles (2-week intervals). Fractionation of pre- and post-apheresis plasma showed that 81 ± 11% of LDL-bound PCSK9 and 48 ± 14% of apolipoprotein B-free PCSK9 were removed. Separation of whole plasma, purified LDL, or the apolipoprotein B-free fraction through a scaled-down, experimental dextran sulfate cellulose beads column produced similar results.

conclusionsOur results show, for the first time, that modulation of LDL levels by LA directly affects plasma PCSK9 levels, and suggest that PCSK9 reduction is an additional benefit of LA. Because the loss of PCSK9 could contribute to the LDL-lowering effect of LA, then (1) anti-PCSK9 therapies may reduce frequency of LA in patients currently approved for therapy, and (2) LA and anti-PCSK9 therapies may be used synergistically to reduce treatment burden.

Indexed as

ApoptosisBlood Component RemovalHEK293 CellsHumansHyperlipoproteinemia Type IILipoproteins, LDLProprotein Convertase 9Proprotein ConvertasesSerine EndopeptidasesLipoproteins, LDLPCSK9 protein, humanProprotein Convertase 9Proprotein ConvertasesSerine Endopeptidasescholesterolfamilial hypercholesterolemialipoprotein apheresis, LDLPCSK9

Identifiers

PMID24122718
PMCPMC3939022

What OpenQuestion holds

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Registered trials

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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.