Evidence map›Paper›PMID 21697250›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2011

Cholecalciferol plus calcium suppresses abnormal PBMC reactivity in patients with multiple sclerosis.

Samantha Kimball, Reinhold Vieth, Hans-Michael Dosch, Amit Bar-Or, Roy Cheung, Donald Gagne, Paul O'Connor, Cheryl D'Souza, Melanie Ursell, Jodie M Burton

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 5 pooled it
5.7field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 5 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Vitamin D for the management of multiple sclerosis.The Cochrane database of systematic reviews · 2018
    Pooled it
  3. Pooled it
  4. Vitamin D supplementation for prevention of mortality in adults.The Cochrane database of systematic reviews · 2014
    Pooled it
  5. Pooled it
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  9. Review
  10. Article
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  19. Review
  20. Update in vitamin D and multiple sclerosis.Neurosciences (Riyadh, Saudi Arabia) · 2015
    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 7 institutions in 1 country.

Samantha KimballDepartments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada. samantha.kimball@utoronto.ca
Reinhold Vieth
Hans-Michael Dosch
Amit Bar-Or
Roy Cheung
Donald Gagne
Paul O'Connor
Cheryl D'Souza
Melanie Ursell
Jodie M Burton
Hospital for Sick Children · CASt. Michael's Hospital · CAUniversity of Toronto · CALakeridge Health · CAMcGill University · CAMontreal Neurological Institute and Hospital · CAMount Sinai Hospital · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

contextThe active metabolite of vitamin D, 1,25-dihydroxyvitamin D [1,25(OH)(2)D], is a potent modulator of immune cells in vitro.

objectiveOur objective was to determine whether the sun-dependent nutrient, cholecalciferol, can alter disease-associated cellular immune abnormalities in patients with multiple sclerosis (MS).

designThis was an open-label, 12-month, randomized controlled trial.

settingPatients with MS were recruited from the MS Clinic at St. Michael's Hospital, Toronto. PATIENTS: Forty-nine patients were matched (for age, sex, disease duration, disease-modifying drug, and disability) and enrolled (treated n = 25; control n = 24). Four patients were lost to follow-up (n = 2 from each group).

interventionTreated patients received increasing doses of cholecalciferol (4,000-40,000 IU/d) plus calcium (1200 mg/d), followed by equilibration to a moderate, physiological intake (10,000 IU/d). Control patients did not receive supplements.

main outcome measuresAt enrollment and at 12 months, peripheral blood mononuclear cell (PBMC) proliferative responses to disease-associated, MS-relevant, and control antigens were measured, along with selected serum biochemical markers.

resultsAt 12 months, mean serum 25-hydroxyvitamin D [25(OH)D] concentrations were 83 ± 35 nmol/liter and 179 ± 76 nmol/liter in control and treated participants, respectively (paired t, P < 0.001). Serum 1,25(OH)(2)D did not differ between baseline and 1 yr. In treated patients, 12-month PBMC proliferative responses to neuron antigens myelin basic protein and exon-2 were suppressed (P = 0.002). In controls, there were no significant changes in disease-associated PBMC responsiveness. There were no significant differences between groups in levels of selected biomarkers.

interpretationMS-associated, abnormal T cell reactivities were suppressed in vivo by cholecalciferol at serum 25(OH)D concentrations higher than 100 nmol/liter.

Indexed as

AdultCalciumCholecalciferolCytokinesDrug Administration ScheduleFemaleHumansLeukocytes, MononuclearLost to Follow-UpMaleMultiple SclerosisTreatment OutcomeVitamin DVitaminsCalciumCholecalciferolCytokinesVitamin DVitamins

Identifiers

PMID21697250
PMCPMC3417163
OpenAlexW1968751245

What OpenQuestion holds

Textmetadata
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.