Evidence map›Paper›PMID 28852075›Full record

ArticleScientific reports2017

Localization and Orientation of Xanthophylls in a Lipid Bilayer.

Wojciech Grudzinski, Lukasz Nierzwicki, Renata Welc, Emilia Reszczynska, Rafal Luchowski, Jacek Czub, Wieslaw I Gruszecki

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 85 citations in OpenAlex.

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  5. NanoencapsulatedMolecules (Basel, Switzerland) · 2025
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  11. Age-Related Macular Degeneration, a Mathematically Tractable Disease.Investigative ophthalmology & visual science · 2024
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  14. International journal of molecular sciences · 2023
    Article
  15. Article
  16. How Do Xanthophylls Protect Lipid Membranes from Oxidative Damage?The journal of physical chemistry letters · 2023
    Article
  17. An Overview of Lutein in the Lipid Membrane.International journal of molecular sciences · 2023
    Review
  18. Article
  19. Article
  20. Review
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 2 institutions in 1 country.

Wojciech GrudzinskiDepartment of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland.ORCID 0000-0002-8825-1423
Lukasz NierzwickiDepartment of Physical Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland.
Renata WelcDepartment of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland.
Emilia ReszczynskaDepartment of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland.
Rafal LuchowskiDepartment of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland.
Jacek CzubDepartment of Physical Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland. jacczub@pg.gda.pl.
Wieslaw I GruszeckiDepartment of Biophysics, Institute of Physics, Maria Curie-Sklodowska University, 20-031, Lublin, Poland. wieslaw.gruszecki@umcs.pl.
Maria Curie-Skłodowska University · PLGdańsk University of Technology · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Xanthophylls (polar carotenoids) play diverse biological roles, among which are modulation of the physical properties of lipid membranes and protection of biomembranes against oxidative damage. Molecular mechanisms underlying these functions are intimately related to the localization and orientation of xanthophyll molecules in lipid membranes. In the present work, we address the problem of localization and orientation of two xanthophylls present in the photosynthetic apparatus of plants and in the retina of the human eye, zeaxanthin and lutein, in a single lipid bilayer membrane formed with dimyristoylphosphatidylcholine. By using fluorescence microscopic analysis and Raman imaging of giant unilamellar vesicles, as well as molecular dynamics simulations, we show that lutein and zeaxanthin adopt a very similar transmembrane orientation within a lipid membrane. In experimental and computational approach, the average tilt angle of xanthophylls relative to the membrane normal is independently found to be ~40 deg, and results from hydrophobic mismatch between the membrane thickness and the distance between the terminal hydroxyl groups of the xanthophylls. Consequences of such a localization and orientation for biological activity of xanthophylls are discussed.

Identifiers

PMID28852075
PMCPMC5575131
OpenAlexW2746398248

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.