Evidence map›Paper›PMID 23204603›Full record

ArticleSleep2012

Sex differences in white matter alterations accompanying obstructive sleep apnea.

Paul M Macey, Rajesh Kumar, Frisca L Yan-Go, Mary A Woo, Ronald M Harper

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Sleep, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06322212 (Type 2 Diabetes Mellitus and Blood Brain Barrier Improvement - A Randomized Clinical Trial), which is not on this map. Cited by 56 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 3 pooled it
3.9field-weighted citation impact, top 6% 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.

NCT06322212 early_phase1recruitingnot on this mapstarted 2024, after this paper: background citation

Type 2 Diabetes Mellitus and Blood Brain Barrier Improvement - A Randomized Clinical Trial

TypeinterventionalSponsorUniversity of California, Los AngelesRan2024 to 2027Enrolled52ConditionsType2diabetesArmsThiamine, Placebo
3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 3 syntheses or guidelines pooled it, 90 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Sex differences in gray matter, white matter, and regional brain perfusion in young, healthy adults.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Neural correlates of sleep quality in children: Sex-specific associations shown by brain diffusion tractography.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2022
    Article
  18. Sympathetic neural responses to sleep disorders and insufficiencies.American journal of physiology. Heart and circulatory physiology · 2022
    Review
  19. Breathing rate variability in obstructive sleep apnea during wakefulness.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    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

5 authors at 1 institution in 1 country.

Paul M MaceySchool of Nursing, University of California at Los Angeles, Los Angeles, CA 90095-1702, USA.
Rajesh Kumar
Frisca L Yan-Go
Mary A Woo
Ronald M Harper
University of California, Los Angeles · US

Funding

TRANSMITTER RELEASE ONTO AIRWAY MOTONEURONS DURING SLEEPP50HL060296 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOZAL, DAVID · 1998 to 2007
$12.5M
Gender Differences in Neural Deficits Associated with Obstructive Sleep ApneaR21NR011230 · NINR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MACEY, PAUL M · 2009 to 2010
$424k
NHLBI NIH HHS HL-60296NHLBI NIH HHS P50 HL060296NINR NIH HHS NR-011230NINR NIH HHS R21 NR011230
6 · The paper itself

Abstract

STUDY

objectivesFemales with obstructive sleep apnea (OSA) show different psychological and physiological symptoms from males, which may be associated with sex-related variations in neural injury occurring with the disorder. To determine whether male- or female-specific brain injury is present in OSA, we assessed influences of sex on white matter changes in the condition.

designTwo-group factorial.

settingUniversity medical center. PATIENTS OR

participants80 subjects total, with newly diagnosed, untreated OSA groups of 10 female (age mean ± SE: 52.6 ± 2.4 years, AHI 22.5 ± 4.1 events/h) and 20 male (age 48.9 ± 1.7, AHI 25.5 ± 2.9) patients, and 20 female (age 50.3 ± 1.7) and 30 male (age 49.2 ± 1.4) healthy control subjects.

interventionsNone. MEASUREMENTS AND

resultsBrain fiber integrity was assessed with fractional anisotropy (FA), a diffusion tensor imaging-derived measure. Sleep quality, daytime sleepiness, depression, and anxiety were assessed with questionnaires. We identified regions of differing injury in male versus female OSA patients by assessing brain regions with significant interaction effects of OSA and sex on FA. Areas of sex-specific, OSA-related FA reductions appeared in females relative to males, including in the bilateral cingulum bundle adjacent to the mid hippocampus, right stria terminalis near the amygdala, prefrontal and posterior-parietal white matter, corpus callosum, and left superior cerebellar peduncle. Females with OSA showed higher daytime sleepiness, anxiety and depression levels, and reduced sleep quality.

conclusionsSex differences in white matter structural integrity appeared in OSA patients, with females more affected than males. These female-specific structural changes may contribute to or derive from neuropsychological and physiological symptom differences between sexes.

Indexed as

AdultBrainCase-Control StudiesDiffusion Tensor ImagingFemaleHumansMaleMiddle AgedNerve FibersPolysomnographySeverity of Illness IndexSex FactorsSleep Apnea, Obstructive

Identifiers

PMID23204603
PMCPMC3490353
OpenAlexW2059018079

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.