Evidence map›Paper›PMID 22610662›Full record

ArticleSleep & breathing = Schlaf & Atmung2013

Oxidative stress in patients with obstructive sleep apnea syndrome.

Melpomeni Ntalapascha, Demosthenes Makris, Antonis Kyparos, Irene Tsilioni, Konstantinos Kostikas, Konstantinos Gourgoulianis, Dimitrios Kouretas, Epaminondas Zakynthinos

Abstract read
PubMed Publisher
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 4 pooled it
3.2field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 4 syntheses or guidelines pooled it, 67 citations in OpenAlex.

  1. Pooled it
  2. Association between the circulating superoxide dismutase and obstructive sleep apnea: a meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2022
    Pooled it
  3. Pooled it
  4. 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
    Pooled it
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  11. Saliva Analysis of pH and Antioxidant Capacity in Adult Obstructive Sleep Apnea Patients.International journal of environmental research and public health · 2022
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  14. Observational
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  19. Oxidative Stress Indexes for Diagnosis of Health or Disease in Humans.Oxidative medicine and cellular longevity · 2019
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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

8 authors at 1 institution in 1 country.

Melpomeni NtalapaschaDepartment of Cardiology, University Hospital of Thessaly Biopolis, Larissa 41110, Greece.
Demosthenes Makris
Antonis Kyparos
Irene Tsilioni
Konstantinos Kostikas
Konstantinos Gourgoulianis
Dimitrios Kouretas
Epaminondas Zakynthinos
University of Thessaly · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe aimed to investigate whether systemic oxidative stress is increased in patients with obstructive sleep apnea syndrome (OSAS).

methodsA total of 18 patients with severe OSAS and 13 controls were included in the study. Inclusion criteria for OSAS patients were: snoring and apnea-hypopnea index (AHI) of >30 in full polysomnography, no previous treatment for OSAS, non-smoking status, and a medical history of being free of comorbidities known to increase oxidative stress. Controls were recruited among subjects assessed for snoring in the Sleep Laboratory Department if they had AHI<5. At baseline, patients were evaluated by the Epworth Sleepiness Scale and underwent spirometry, echocardiography, and full polysomnographic study. Blood samples were collected for evaluation of oxidative stress biomarkers [protein carbonyls, reduced (GSH) and oxidized (GSSG) glutathione, 8-isoprostane, thiobarbituric acid-reactive substances (TBARS), catalase activity, Cu-Zn superoxide dysmutase (SOD), total antioxidant capacity (TAC)] before and on the morning following polysomnography.

resultsThe overnight (morning-night) change (%) of GSH/GSSG ratio and GSH was significantly different between OSAS and controls (p = 0.03 and p = 0.048, respectively). Plasma protein carbonyls, erythrocyte catalase activity, 8-isoprostane, SOD, TBARS, and TAC plasma values were not different between OSAS and controls (p > 0.05). No significant correlation was found between changes in the levels of biomarkers and AHI, arousal, or desaturation index.

conclusionThe present prospective investigation in a population free of comorbidities or factors which may increase systemic oxidative stress provides evidence that obstructive sleep apnea per se might be associated with increased oxidative burden possibly via GSH/GSSG pathway.

Indexed as

AdultAgedBiomarkersFemaleGlutathioneGlutathione DisulfideHumansMaleMiddle AgedOxidative StressPolysomnographyProspective StudiesReference ValuesSleep Apnea, ObstructiveBiomarkersGlutathioneGlutathione Disulfide

Identifiers

PMID22610662
OpenAlexW2023840262

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.