Evidence map›Paper›PMID 26829325›Full record

ArticlePloS one2016

Cerebral Apolipoprotein-D Is Hypoglycosylated Compared to Peripheral Tissues and Is Variably Expressed in Mouse and Human Brain Regions.

Hongyun Li, Kalani Ruberu, Tim Karl, Brett Garner

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 20% 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, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Apolipoprotein D as a Potential Biomarker in Neuropsychiatric Disorders.International journal of molecular sciences · 2023
    Review
  12. Apolipoprotein D in Oxidative Stress and Inflammation.Antioxidants (Basel, Switzerland) · 2023
    Review
  13. Review
  14. Faster skin wound healing predicts survival after myocardial infarction.American journal of physiology. Heart and circulatory physiology · 2022
    Article
  15. Article
  16. Article
  17. Apolipoprotein D.Gene · 2020
    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

4 authors at 3 institutions in 1 country.

Hongyun LiIllawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia.
Kalani RuberuIllawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia.
Tim KarlNeuroscience Research Australia, Randwick, NSW 2031, Australia.
Brett GarnerIllawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia.
University of Wollongong · AUIllawarra Health and Medical Research Institute · AUNeuroscience Research Australia · AU

Funding

Brain Tissue Resource Centre for Alcohol ResearchR28AA012725 · NIAAA · UNIVERSITY OF SYDNEY · PI Greg Trevor Sutherland · 2012 to 2026
$7.0M
NIAAA NIH HHS R28 AA012725NIAAA NIH HHS R28AA012725
6 · The paper itself

Abstract

Recent studies have shown that cerebral apoD levels increase with age and in Alzheimer's disease (AD). In addition, loss of cerebral apoD in the mouse increases sensitivity to lipid peroxidation and accelerates AD pathology. Very little data are available, however, regarding the expression of apoD protein levels in different brain regions. This is important as both brain lipid peroxidation and neurodegeneration occur in a region-specific manner. Here we addressed this using western blotting of seven different regions (olfactory bulb, hippocampus, frontal cortex, striatum, cerebellum, thalamus and brain stem) of the mouse brain. Our data indicate that compared to most brain regions, the hippocampus is deficient in apoD. In comparison to other major organs and tissues (liver, spleen, kidney, adrenal gland, heart and skeletal muscle), brain apoD was approximately 10-fold higher (corrected for total protein levels). Our analysis also revealed that brain apoD was present at a lower apparent molecular weight than tissue and plasma apoD. Utilising peptide N-glycosidase-F and neuraminidase to remove N-glycans and sialic acids, respectively, we found that N-glycan composition (but not sialylation alone) were responsible for this reduction in molecular weight. We extended the studies to an analysis of human brain regions (hippocampus, frontal cortex, temporal cortex and cerebellum) where we found that the hippocampus had the lowest levels of apoD. We also confirmed that human brain apoD was present at a lower molecular weight than in plasma. In conclusion, we demonstrate apoD protein levels are variable across different brain regions, that apoD levels are much higher in the brain compared to other tissues and organs, and that cerebral apoD has a lower molecular weight than peripheral apoD; a phenomenon that is due to the N-glycan content of the protein.

Indexed as

AnimalsApolipoproteins DApolipoproteins EBiomarkersCerebrumFemaleGlycosylationHumansMaleMice, Inbred C57BLMolecular WeightN-Acetylneuraminic AcidPolysaccharidesApolipoproteins DApolipoproteins EBiomarkersN-Acetylneuraminic AcidPolysaccharides

Identifiers

PMID26829325
PMCPMC4734669
OpenAlexW2253089030

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.