Evidence map›Paper›PMID 24501589›Full record

ArticleJournal of chemical theory and computation2013

Simulation study of the structure and phase behavior of ceramide bilayers and the role of lipid head group chemistry.

Shan Guo, Timothy C Moore, Christopher R Iacovella, L Anderson Strickland, Clare McCabe

Abstract read
In one paragraph

Article in Journal of chemical theory and computation, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. Article
  3. A lipid atlas of the human kidney.Science advances · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  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.

Shan GuoDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
Timothy C MooreDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
Christopher R IacovellaDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
L Anderson StricklandDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
Clare McCabeDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA ; Department of Chemistry, Vanderbilt University, Nashville, TN, 37235, USA.

Funding

Using Molecular Modeling to Determine Structure and Organization in Skin LipidsR01AR057886 · NIAMS · VANDERBILT UNIVERSITY · PI MCCABE, CLARE · 2010 to 2012
$601k
NIAMS NIH HHS R01 AR057886
6 · The paper itself

Abstract

Ceramides are known to be a key component of the stratum corneum, the outermost protective layer of the skin that controls barrier function. In this work, molecular dynamics simulations are used to examine the behavior of ceramide bilayers, focusing on non-hydroxy sphingosine (NS) and non-hydroxy phytosphingosine (NP) ceramides. Here, we propose a modified version of the CHARMM force field for ceramide simulation, which is directly compared to the more commonly used GROMOS-based force field of Berger (Biophys. J. 1997, 72); while both force fields are shown to closely match experiment from a structural standpoint at the physiological temperature of skin, the modified CHARMM force field is better able to capture the thermotropic phase transitions observed in experiment. The role of ceramide chemistry and its impact on structural ordering is examined by comparing ceramide NS to NP, using the validated CHARMM-based force field. These simulations demonstrate that changing from ceramide NS to NP results in changes to the orientation of the OH groups in the lipid headgroups. The arrangement of OH groups perpendicular to the bilayer normal for ceramide NP, verse parallel for NS, results in the formation of a distinct hydrogen bonding network, that is ultimately responsible for shifting the gel-to-liquid phase transition to higher temperature, in direct agreement with experiment.

Indexed as

ceramidesforce field comparisonhead group chemistryphase transition behavior

Identifiers

PMID24501589
PMCPMC3911788

What OpenQuestion holds

Textmetadata
LicenceTDM
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.