Evidence map›Paper›PMID 22278815›Full record

ArticleClinical cardiology2012

Continuous positive airway pressure therapy improves vascular dysfunction and decreases oxidative stress in patients with the metabolic syndrome and obstructive sleep apnea syndrome.

Jun-ichi Oyama, Hiroaki Yamamoto, Toyoki Maeda, Akira Ito, Koichi Node, Naoki Makino

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cardiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 5 pooled it
6.2field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 5 syntheses or guidelines pooled it, 88 citations in OpenAlex.

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  5. Diagnostic capability of biological markers in assessment of obstructive sleep apnea: a systematic review and meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2015
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  19. Ocular Complications of Obstructive Sleep Apnea.Journal of clinical medicine · 2021
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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

6 authors at 2 institutions in 1 country.

Jun-ichi OyamaDepartment of Cardiovascular, Respiratory, and Geriatric Medicine, Kyushu University Hospital at Beppu and Medical Institute of Bioregulation, Kyushu University, Oita, Japan. joyama@tsurumi.beppu.kyushu-u.ac.jp
Hiroaki Yamamoto
Toyoki Maeda
Akira Ito
Koichi Node
Naoki Makino
Kyushu University Hospital · JPSaga University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with obstructive sleep apnea syndrome (OSAS) are always exposed to intermittent hypoxia and reoxygenation. The metabolic syndrome (MetS) and OSAS are also known to accelerate atherosclerosis, diabetes, and dyslipidemia. Therefore, nasal continuous positive airway pressure (CPAP) therapy may have beneficial effects in patients with the MetS and OSAS. HYPOTHESIS: This study in patients with the MetS and OSAS tested the validity of the hypothesis that chronic CPAP therapy improves factors involved in atherosclerosis, including impaired endothelial function.

methodsThirty-two patients (19 males and 13 females, mean age 54 ± 9 y) diagnosed with the MetS and OSAS were enrolled in the study and received CPAP therapy for 3 months. Vascular function was investigated by measuring forearm blood flow (FBF) responses to reactive hyperemia (RH) using venous occlusion strain-gauge plethysmography. Biochemical markers were also measured before and after this procedure.

resultsBasal apnea-hypopnea index was statistically correlated with FBF response to RH. The FBF response to RH was increased significantly after 3 months of CPAP therapy. A significant increase in plasma nitric oxide levels and a decrease in the levels of asymmetrical dimethylarginine, thiobarbituric acid reactive substance, soluble Fas ligand, and soluble CD40 ligand were detected after CPAP therapy. The plasma concentrations of tumor necrosis factor-α, interleukin (IL)-6, and IL-8 also decreased significantly with CPAP therapy, whereas IL-1β levels remained unchanged.

conclusionsContinuous positive airway pressure therapy has beneficial effects on vascular function and inflammatory and oxidative stress in patients with the MetS and OSAS.

Indexed as

Continuous Positive Airway PressureOxidative StressBiomarkersConfidence IntervalsEndothelium, VascularFemaleHealth Status IndicatorsHemodynamicsHumansMaleMetabolic SyndromeMiddle AgedMultivariate AnalysisPolysomnographyPrognosisRegression AnalysisBiomarkers

Identifiers

PMID22278815
PMCPMC6652717
OpenAlexW2081091605

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.