Evidence map›Paper›PMID 28522103›Full record

ArticleSleep medicine2017

Urinary biomarkers and obstructive sleep apnea in patients with Down syndrome.

Ibrahim Elsharkawi, David Gozal, Eric A Macklin, Lauren Voelz, Gil Weintraub, Brian G Skotko

Abstract read
In one paragraph

Article in Sleep medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Predictors of sleep disordered breathing in children with Down syndrome: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2022
    Pooled it
  2. Sleep disorders in Down syndrome: a systematic review.Arquivos de neuro-psiquiatria · 2022
    Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Prevalence of Sleep Disorders in Adults With Down Syndrome: A Comparative Study of Self-Reported, Actigraphic, and Polysomnographic Findings.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2018
    Article
  9. Review
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 5 institutions in 1 country.

Ibrahim ElsharkawiDown Syndrome Program, Division of Genetics, Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA.
David GozalDepartment of Pediatrics, University of Chicago, Chicago, IL, USA.
Eric A MacklinBiostatistics Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Lauren VoelzDown Syndrome Program, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, USA.
Gil WeintraubBeth Israel Deaconess Medical Center, Boston, MA, USA.
Brian G SkotkoDown Syndrome Program, Division of Genetics, Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA. Electronic address: bskotko@mgh.harvard.edu.
Harvard University · USBeth Israel Deaconess Medical Center · USBoston Children's Hospital · USMassachusetts General Hospital · USUniversity of Chicago · US

Funding

HARVARD CLINICAL AND TRANSLATIONAL SCIENCE CENTER (UL1)UL1RR025758 · NCRR · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2008 to 2011
$91.4M
TRAINING GRANT IN GENETICST32GM007748 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI Anne O'Donnell-Luria, Louise Wilkins-Haug · 1985 to 2026
$12.0M
Predicting Obstructive Sleep Apnea in Down SyndromeF32HD068101 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI SKOTKO, BRIAN GARY · 2011 to 2012
$116k
NCRR NIH HHS UL1 RR025758NICHD NIH HHS F32 HD068101NIGMS NIH HHS T32 GM007748
6 · The paper itself

Abstract

STUDY

objectivesThe study aimed to compare urinary biomarkers in patients with Down syndrome (DS) with and without obstructive sleep apnea (OSA) to those of age- and sex-matched neurotypically developing healthy controls (HC). We further investigated whether we could predict OSA in patients with DS using these biomarkers.

methodsUrine samples were collected from 58 patients with DS the night before or the morning after their scheduled overnight polysomnogram or both, of whom 47 could be age- and sex-matched to a sample of 43 HC. Concentrations of 12 neurotransmitters were determined by enzyme-linked immunosorbent assay. Log-transformed creatinine-corrected assay levels were normalized. Normalized z-scores were compared between patients with DS vs. HC, between patients with DS with vs. without OSA, and to derive composite models to predict OSA.

resultsMost night-sampled urinary biomarkers were elevated among patients with DS relative to matched HC. No urinary biomarker levels differed between patients with DS with vs. without OSA. A combination of four urinary biomarkers predicted AHI > 1 with a positive predictive value of 90% and a negative predictive value of 68%.

conclusionsHaving DS, even in the absence of concurrent OSA, is associated with a different urinary biomarker profile when compared to that of HC. Therefore, while urinary biomarkers may be predictive of OSA in the general pediatric population, a different approach is needed in interpreting urinary biomarker assays in patients with DS. Certain biomarkers also seem promising to be predictive of OSA in patients with DS. No clinical trial was indicated in the undertaking of this work.

Indexed as

BiomarkersChildChild, PreschoolDown SyndromeEnzyme-Linked Immunosorbent AssayFemaleHumansMalePolysomnographyROC CurveSleep Apnea, ObstructiveBiomarkersDown syndromeObstructive sleep apneaPolysomnographyTrisomy 21Urinary biomarkers

Identifiers

PMID28522103
PMCPMC5439300
OpenAlexW2592343419

What OpenQuestion holds

Textmetadata
LicenceTDM
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.