Evidence mapPaperPMID 22995496Full record

ArticleBiophysical journal2012

Interfacial tension and surface pressure of high density lipoprotein, low density lipoprotein, and related lipid droplets.

O H Samuli Ollila, Antti Lamberg, Maria Lehtivaara, Artturi Koivuniemi, Ilpo Vattulainen

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

26 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Article
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  4. Article
  5. Factors Promoting Lipopolysaccharide Uptake by Synthetic Lipid Droplets.bioRxiv : the preprint server for biology · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Computational Studies of Lipid Droplets.The journal of physical chemistry. B · 2022
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Molecular dynamics simulations of lipid nanodiscs.Biochimica et biophysica acta. Biomembranes · 2018
    Article
  19. Article
  20. 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

5 authors at 3 institutions in 3 countries.

O H Samuli OllilaPhysical Chemistry, Lund University, Lund, Sweden. samuli.ollila@fkem1.lu.se
Antti Lamberg
Maria Lehtivaara
Artturi Koivuniemi
Ilpo Vattulainen
Aalto University · FITampere University · FIVTT Technical Research Centre of Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipid droplets play a central role in energy storage and metabolism on a cellular scale. Their core is comprised of hydrophobic lipids covered by a surface region consisting of amphiphilic lipids and proteins. For example, high and low density lipoproteins (HDL and LDL, respectively) are essentially lipid droplets surrounded by specific proteins, their main function being to transport cholesterol. Interfacial tension and surface pressure of these particles are of great interest because they are related to the shape and the stability of the droplets and to protein adsorption at the interface. Here we use coarse-grained molecular-dynamics simulations to consider a number of related issues by calculating the interfacial tension in protein-free lipid droplets, and in HDL and LDL particles mimicking physiological conditions. First, our results suggest that the curvature dependence of interfacial tension becomes significant for particles with a radius of ∼5 nm, when the area per molecule in the surface region is <1.4 nm(2). Further, interfacial tensions in the used HDL and LDL models are essentially unaffected by single apo-proteins at the surface. Finally, interfacial tensions of lipoproteins are higher than in thermodynamically stable droplets, suggesting that HDL and LDL are kinetically trapped into a metastable state.

Indexed as

Molecular Dynamics SimulationPressureKineticsLipoproteins, HDLLipoproteins, LDLProtein ConformationSurface PropertiesLipoproteins, HDLLipoproteins, LDL

Identifiers

PMID22995496
PMCPMC3446698
OpenAlexW2046522325

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.