Evidence map›Paper›PMID 30071029›Full record

ArticlePloS one2018

Evaluation of serum sphingolipids and the influence of genetic risk factors in age-related macular degeneration.

Luciana M Pujol-Lereis, Gerhard Liebisch, Tina Schick, Yuchen Lin, Felix Grassmann, Koji Uchida, Peter F Zipfel, Sascha Fauser, Christine Skerka, Bernhard H F Weber

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.8field-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

20 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Effects of wolfberry (Frontiers in nutrition · 2024
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  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Editorial to the Special Issue "Lipidomics and Neurodegenerative Diseases".International journal of molecular sciences · 2021
    Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Sphingolipids as Emerging Mediators in Retina Degeneration.Frontiers in cellular neuroscience · 2019
    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

10 authors at 5 institutions in 3 countries.

Luciana M Pujol-LereisInstitute of Human Genetics, University of Regensburg, Regensburg, Germany.ORCID 0000-0002-7009-2743
Gerhard LiebischInstitute of Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany.
Tina SchickDepartment of Ophthalmology, University Hospital of Cologne, Cologne, Germany.
Yuchen LinDepartment of Infection Biology, Leibniz Institute for Natural Product Research and Infection Biology, Jena, Germany.
Felix GrassmannInstitute of Human Genetics, University of Regensburg, Regensburg, Germany.
Koji UchidaGraduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
Peter F ZipfelDepartment of Infection Biology, Leibniz Institute for Natural Product Research and Infection Biology, Jena, Germany.
Sascha FauserDepartment of Ophthalmology, University Hospital of Cologne, Cologne, Germany.
Christine SkerkaDepartment of Infection Biology, Leibniz Institute for Natural Product Research and Infection Biology, Jena, Germany.
Bernhard H F WeberInstitute of Human Genetics, University of Regensburg, Regensburg, Germany.
University of Regensburg · DELeibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI) · DERoche (Switzerland) · CHThe University of Tokyo · JPUniversity Hospital Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sphingolipids are bioactive molecules associated with oxidative stress, inflammation, and neurodegenerative diseases, but poorly studied in the context of age-related macular degeneration (AMD), a prevalent sight-threatening disease of the ageing retina. Here, we found higher serum levels of hexosylceramide (HexCer) d18:1/16:0 in patients with choroidal neovascularization (CNV) and geographic atrophy (GA), two manifestations of late stage AMD, and higher ceramide (Cer) d18:1/16:0 levels in GA patients. A sensitivity analysis of genetic variants known to be associated with late stage AMD showed that rs1061170 (p.Y402H) in the complement factor H (CFH) gene influences the association of Cer d18:1/16:0 with GA. To understand the possible influence of this genetic variant on ceramide levels, we established a cell-based assay to test the modulation of genes in the ceramide metabolism by factor H-like protein 1 (FHL-1), an alternative splicing variant of CFH that also harbors the 402 residue. We first showed that malondialdehyde-acetaldehyde adducts, an oxidation product commonly found in AMD retinas, induces an increase in ceramide levels in WERI-Rb1 cells in accordance with an increased expression of ceramide synthesis genes. Then, we observed that cells exposed to the non-risk FHL-1:Y402, but not the risk associated variant FHL-1:H402 or full-length CFH, downregulated ceramide synthase 2 and ceramide glucosyltransferase gene expression. Together, our findings show that serum ceramide and hexosylceramide species are altered in AMD patients and that ceramide levels may be influenced by AMD associated risk variants.

Indexed as

AgedAged, 80 and overCell LineCeramidesChoroidal NeovascularizationComplement C3b Inactivator ProteinsComplement Factor HDown-RegulationGenetic VariationGlucosyltransferasesHumansMacular DegenerationMembrane ProteinsMiddle AgedPolymorphism, Single NucleotideProtein Isoformsceramide glucosyltransferaseCeramidesCERS2 protein, humanCFH protein, humanCFHR1 protein, humanComplement C3b Inactivator ProteinsComplement Factor HGlucosyltransferasesMembrane ProteinsProtein IsoformsSphingomyelinsSphingosine N-AcyltransferaseTumor Suppressor Proteins

Identifiers

PMID30071029
PMCPMC6071970
OpenAlexW2886868171

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.