Evidence map›Paper›PMID 23407918›Full record

ArticleSleep & breathing = Schlaf & Atmung2013

Low serum copeptin levels in patients with obstructive sleep apnea.

Serkan Ozben, Tolga Sinan Guvenc, Nergiz Huseyinoglu, Hilal Safak Sanivar, Ferhat Hanikoglu, Aysegul Cort, Tomris Ozben

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 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. 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
  2. Nocturia and obstructive sleep apnoea.Nature reviews. Urology · 2024
    Review
  3. Article
  4. Review
  5. Canadian Urological Association best practice report: Diagnosis and management of nocturia.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022
    Article
  6. Article
  7. Article
  8. Copeptin: a new predictor for severe obstructive sleep apnea.Therapeutics and clinical risk management · 2015
    Article
  9. Article
  10. 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

7 authors at 2 institutions in 1 country.

Serkan OzbenDepartment of Neurology, Medical Faculty, Kafkas University, 36100, Kars, Turkey, serkanozben@yahoo.com.
Tolga Sinan Guvenc
Nergiz Huseyinoglu
Hilal Safak Sanivar
Ferhat Hanikoglu
Aysegul Cort
Tomris Ozben
Kafkas University · TRAkdeniz University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCopeptin, the C-terminal fragment of antidiuretic hormone (ADH), is a new biomarker that has been found to be elevated in several cardiovascular disorders and is related with prognosis. Patients with obstructive sleep apnea demonstrate a tendency to develop coronary and cerebral atherosclerotic disease. Our aim was to investigate copeptin levels in untreated new diagnosed obstructive sleep apnea patients without manifest cardiovascular disorders in order to determine whether copeptin could be used as a biomarker in this group.

methodsA total of 60 patients with obstructive sleep apnea, diagnosed with polysomnography, and 23 healthy volunteers were enrolled into this study. Blood samples were collected after overnight fasting, and copeptin level was measured with an enzyme immunoassay method.

resultsPatients with obstructive sleep apnea had a higher incidence of hypertension and body mass index but lower serum copeptin level (0.48 ± 0.24. vs. 0.64 ± 0.28 ng/ml, p = 0.007) compared with the healthy controls. There was no significant difference regarding to serum copeptin levels between the moderate (n = 13) and severe (n = 47) obstructive sleep apnea patients (0.42 ± 0.18 vs. 0.49 ± 0.26 ng/ml, p = 0.409).

conclusionsRather than reflecting a reduced risk for cardiovascular disorders, we consider that reduced copeptin level is related with disturbed ADH secretion in obstructive sleep apnea patients. Therefore, it would not be advisable to measure copeptin levels in obstructive sleep apnea patients to determine cardiovascular risk, while this marker could be valuable to demonstrate impairment in ADH regulation in this patient group.

Indexed as

AdultBiomarkersBody Mass IndexCoronary Artery DiseaseDiabetic AngiopathiesFemaleGlycopeptidesHumansHypertensionImmunoenzyme TechniquesIntracranial ArteriosclerosisMaleMiddle AgedPolysomnographyReference ValuesRisk FactorsBiomarkerscopeptinsGlycopeptides

Identifiers

PMID23407918
OpenAlexW2025144959

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.