Evidence map›Paper›PMID 22216257›Full record

ArticlePloS one2011

Vitamin D3 deficiency differentially affects functional and disease outcomes in the G93A mouse model of amyotrophic lateral sclerosis.

Jesse A Solomon, Alexandro Gianforcaro, Mazen J Hamadeh

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Vitamin DJournal of cachexia, sarcopenia and muscle · 2021
    Trial
  3. Trial
  4. Review
  5. Review
  6. Microbiome and micronutrient in ALS: From novel mechanisms to new treatments.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Vitamin D and Neurological Diseases: An Endocrine View.International journal of molecular sciences · 2017
    Review
  12. Palliative Care Issues in Amyotrophic Lateral Sclerosis: An Evidenced-Based Review.The American journal of hospice & palliative care · 2016
    Review
  13. Article
  14. Review
  15. Review
  16. Vitamin D is Not a Protective Factor in ALS.CNS neuroscience & therapeutics · 2015
    Article
  17. Article
  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

3 authors at 2 institutions in 1 country.

Jesse A SolomonSchool of Kinesiology and Health Science, Faculty of Health, York University, Toronto, Ontario, Canada.
Alexandro Gianforcaro
Mazen J Hamadeh
York University · CAMcMaster University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledAmyotrophic lateral sclerosis (ALS) is a neuromuscular disease characterized by motor neuron death in the central nervous system. Vitamin D supplementation increases antioxidant activity, reduces inflammation and improves motor neuron survival. We have previously demonstrated that vitamin D(3) supplementation at 10× the adequate intake improves functional outcomes in a mouse model of ALS.

objectiveTo determine whether vitamin D deficiency influences functional and disease outcomes in a mouse model of ALS.

methodsAt age 25 d, 102 G93A mice (56 M, 46 F) were divided into two vitamin D(3) groups: 1) adequate (AI; 1 IU D(3)/g feed) and 2) deficient (DEF; 0.025 IU D(3)/g feed). At age 113 d, tibialis anterior (TA), quadriceps (quads) and brain were harvested from 42 mice (22 M and 20 F), whereas the remaining 60 mice (34 M and 26 F) were followed to endpoint.

resultsDuring disease progression, DEF mice had 25% (P=0.022) lower paw grip endurance AUC and 19% (P=0.017) lower motor performance AUC vs. AI mice. Prior to disease onset (CS 2), DEF mice had 36% (P=0.016) lower clinical score (CS) vs. AI mice. DEF mice reached CS 2 six days later vs. AI mice (P=0.004), confirmed by a logrank test which revealed that DEF mice reached CS 2 at a 43% slower rate vs. AI mice (HR= .57; 95% CI: 0.38, 1.74; P=0.002). Body weight-adjusted TA (AI: r=0.662, P=0.001; DEF: r=0.622, P=0.006) and quads (AI: r=0.661, P=0.001; DEF: r=0.768; P<0.001) weights were strongly correlated with age at CS 2.

conclusionVitamin D(3) deficiency improves early disease severity and delays disease onset, but reduces performance in functional outcomes following disease onset, in the high-copy G93A mouse.

Indexed as

Amyotrophic Lateral SclerosisAnimalsCholecalciferolDisease Models, AnimalMaleMicePolymerase Chain ReactionTreatment OutcomeVitamin D DeficiencyCholecalciferol

Identifiers

PMID22216257
PMCPMC3246470
OpenAlexW2098306595

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.