Evidence map›Paper›PMID 21206551›Full record

ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2010

Resolution of hypersomnia following identification and treatment of vitamin d deficiency.

David E McCarty

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 45 citations in OpenAlex.

  1. Vitamin D Improves Selected Metabolic Parameters but Not Neuropsychological or Quality of Life Indices in OSA: A Pilot Study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2017
    Trial
  2. Article
  3. Vitamin D and Sleep Disorders.Advances in experimental medicine and biology · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Impacts of serum vitamin D levels on sleep and daytime sleepiness according to working conditions.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020
    Article
  8. Vitamin D and sleep in children.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020
    Article
  9. Article
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  11. Article
  12. Article
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  14. Article
  15. Vitamin D, race, and excessive daytime sleepiness.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2012
    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

1 author at 1 institution in 1 country.

David E McCartySleep Medicine Program, Department of Neurology, Louisiana State University Health Sciences Center, Shreveport, Louisiana 71130, USA. dmcca1@lsuhsc.edu
Louisiana State University in Shreveport · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A 28-year-old woman was evaluated for 4 months of excessive daytime sleepiness (EDS), after an overnight polysomnogram (PSG) revealed neither sleep disordered breathing nor a sleep related movement disorder. A full sleep evaluation revealed the presence of heavy daytime napping and pervasive fatigue. Epworth Sleepiness Scale (ESS) Score was 10/24. No features characteristic for depression or narcolepsy were present. Chronic pain in the low back and thighs, as well as chronic daily headaches were identified as potential sleep-disrupting forces. Risk factors for hypovitaminosis D included limited natural sun exposure, dark skin tone, and obesity. A 25-hydroxyvitamin D level was low, at 5.9 ng/mL. Vitamin D supplementation was initiated at a dose of 50,000 IU once weekly, and EDS improved within 2 weeks. One week later, a PSG with next-day multiple sleep latency testing (MSLT) failed to show significant pathology. At follow-up, she reported resolution of thigh pain and headaches, with a significant improvement in her low back pain syndrome. EDS had resolved, and her ESS score was 1/24. Follow-up 25-hydroxyvitamin D level was normal at 39 ng/mL. Mechanisms for her clinical improvement could include enhanced sleep quality due to resolution of hypovitaminosis D-associated noninflammatory myopathy, or a possible immunomodulatory effect of vitamin D decreasing central nervous system (CNS) homeostatic sleep pressure via its effects on tumor necrosis factor-alpha (TNF-α) and/or prostaglandin D2. More research is needed to determine if patients presenting with EDS should be more broadly screened for vitamin D deficiency.

Indexed as

AdultBlood Chemical AnalysisDiagnosis, DifferentialDisorders of Excessive SomnolenceDose-Response Relationship, DrugDrug Administration ScheduleFemaleFollow-Up StudiesHumansPolysomnographyRisk AssessmentSeverity of Illness IndexTreatment OutcomeVitamin DVitamin D DeficiencyVitamin Dchronic painHypersomniahypovitaminosis Dosteomalacic myopathyvitamin D

Identifiers

PMID21206551
PMCPMC3014249
OpenAlexW1553984396

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.