Evidence map›Paper›PMID 27315771›Full record

ArticleJournal of neuroscience research2016

Associations between brain white matter integrity and disease severity in obstructive sleep apnea.

Sudhakar Tummala, Bhaswati Roy, Bumhee Park, Daniel W Kang, Mary A Woo, Ronald M Harper, Rajesh Kumar

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Journal of neuroscience research, 2016. 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 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-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.

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

18 citing papers in PubMed, 29 citations in OpenAlex.

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  6. Relationships between brain tissue damage, oxygen desaturation, and disease severity in obstructive sleep apnea evaluated by diffusion tensor imaging.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
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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

7 authors at 1 institution in 1 country.

Sudhakar Tummala *Department of Anesthesiology, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Bhaswati Roy *UCLA School of Nursing, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Bumhee ParkDepartment of Anesthesiology, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Daniel W KangDepartment of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Mary A WooUCLA School of Nursing, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Ronald M HarperDepartment of Neurobiology, University of California at Los Angeles, Los Angeles, CA 90095, USA.
Rajesh KumarDepartment of Anesthesiology, University of California at Los Angeles, Los Angeles, CA 90095, USA.
University of California, Los Angeles · US

Funding

Blood-Brain Barrier Deficit and Brain Injury in Obstructive Sleep ApneaR01NR015038 · NINR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KUMAR, RAJESH · 2015 to 2018
$2.0M
Brain Axonal Injury in Obstructive Sleep ApneaR01HL113251 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KUMAR, RAJESH · 2012 to 2015
$1.4M
NHLBI NIH HHS R01 HL113251NINR NIH HHS R01 NR015038
6 · The paper itself

Abstract

Obstructive sleep apnea (OSA) is characterized by recurrent upper airway blockage, with continued diaphragmatic efforts to breathe during sleep. Brain structural changes in OSA appear in various regions, including white matter sites that mediate autonomic, mood, cognitive, and respiratory control. However, the relationships between brain white matter changes and disease severity in OSA are unclear. This study examines associations between an index of tissue integrity, magnetization transfer (MT) ratio values (which show MT between free and proton pools associated with tissue membranes and macromolecules), and disease severity (apnea-hypopnea index [AHI]) in OSA subjects. We collected whole-brain MT imaging data from 19 newly diagnosed, treatment-naïve OSA subjects (50.4 ± 8.6 years of age, 13 males, AHI 39.7 ± 24.3 events/hr], using a 3.0-Tesla MRI scanner. With these data, whole-brain MT ratio maps were calculated, normalized to common space, smoothed, and correlated with AHI scores by using partial correlation analyses (covariates, age and gender; P < 0.005). Multiple brain sites in OSA subjects, including superior and inferior frontal regions, ventral medial prefrontal cortex and nearby white matter, midfrontal white matter, insula, cingulate and cingulum bundle, internal and external capsules, caudate nuclei and putamen, basal forebrain, hypothalamus, corpus callosum, and temporal regions, showed principally lateralized negative correlations (P < 0.005). These regions showed significant correlations even with correction for multiple comparisons (cluster-level, family-wise error, P < 0.05), except for a few superior frontal areas. Predominantly negative correlations emerged between local MT values and OSA disease severity, indicating potential usefulness of MT imaging for examining the OSA condition. These findings indicate that OSA severity plays a significant role in white matter injury. © 2016 Wiley Periodicals, Inc.

Indexed as

Brain MappingAdultAffective SymptomsBrainCross-Sectional StudiesFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsPolysomnographyPsychiatric Status Rating ScalesSleep Apnea, ObstructiveWhite Matterapnea-hypopnea indexfrontal white matterhypoxiainsulamagnetization transfer imaging

Identifiers

PMID27315771
PMCPMC4990476
OpenAlexW2422974785

What OpenQuestion holds

Textmetadata
LicenceTDM
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.