Evidence map›Paper›PMID 18711208›Full record

ArticleJournal of lipid research2008

Origins of intestinal ABCA1-mediated HDL-cholesterol.

F Jeffrey Field, Kim Watt, Satya N Mathur

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Cellular Tight Junctions Prevent EffectiveFrontiers in cellular and infection microbiology · 2018
    Article
  5. Article
  6. Review
  7. Non-clinical development of CER-001.Frontiers in pharmacology · 2015
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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 1 country.

F Jeffrey FieldDepartment of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA. f-jeffrey-field@uiowa.edu
Kim Watt
Satya N Mathur
University of Iowa · US

Funding

ABCs of Intestinal Sterol TransportR01DK067132 · NIDDK · UNIVERSITY OF IOWA · PI FIELD, F JEFFREY · 2005 to 2009
$1.4M
NIDDK NIH HHS DK-067132NIDDK NIH HHS R01 DK067132
6 · The paper itself

Abstract

The origins of cholesterol utilized by intestinal ABCA1 were investigated in the human intestinal cell line Caco-2. Influx of apical membrane cholesterol increases ABCA1 mRNA and mass, resulting in enhanced efflux of HDL-cholesterol. Luminal (micellar) cholesterol and newly synthesized cholesterol are not transported directly to ABCA1 but reach the ABCA1 pool after incorporation into the apical membrane. Depleting the apical or the basolateral membrane of cholesterol by cyclodextrin attenuates the amount of cholesterol transported by ABCA1 without altering ABCA1 expression. Filipin added to the apical side but not the basal side attenuates ABCA1-mediated cholesterol efflux, suggesting that apical membrane "microdomains," or rafts, supply cholesterol for HDL. Preventing cholesterol esterification increases the amount of cholesterol available for HDL. Ezetimibe, a Niemann-Pick C1-like 1 protein inhibitor, does not alter ABCA1-mediated cholesterol efflux. U18666A and imipramine, agents that mimic cholesterol trafficking defects of Neimann-Pick type C disease, attenuate cholesterol efflux without altering ABCA1 expression; thus, intestinal NPC1 may facilitate cholesterol movement to ABCA1. ABCA1-mediated cholesterol efflux is independent of cholesterol synthesis. The results suggest that following incorporation into plasma membrane and rafts of the apical membrane, dietary/biliary and newly synthesized cholesterol contribute to the ABCA1 pool and HDL-cholesterol. NPC1 may have a role in this process.

Indexed as

ATP Binding Cassette Transporter 1ATP-Binding Cassette TransportersCaco-2 CellsCarrier ProteinsCholesterol, HDLHumansIntestinal MucosaIntracellular Signaling Peptides and ProteinsMembrane GlycoproteinsNiemann-Pick C1 ProteinABCA1 protein, humanATP Binding Cassette Transporter 1ATP-Binding Cassette TransportersCarrier ProteinsCholesterol, HDLIntracellular Signaling Peptides and ProteinsMembrane GlycoproteinsNiemann-Pick C1 ProteinNPC1 protein, human

Identifiers

PMID18711208
PMCPMC2582371
OpenAlexW2101139821

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.