Evidence map›Paper›PMID 25318349›Full record

ArticleBMC pediatrics2014

Serum level of vitamin D and trace elements in children with recurrent wheezing: a cross-sectional study.

Metin Uysalol, Ezgi Pasli Uysalol, Yasin Yilmaz, Gunes Parlakgul, Tulin Ayse Ozden, Hayriye Vehid Ertem, Beyhan Omer, Nedret Uzel

Open access · goldAbstract read
In one paragraph

Article in BMC pediatrics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
1.9field-weighted citation impact, top 15% 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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Research advance in correlation between childhood asthma and gut microbiota.Frontiers in cellular and infection microbiology · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Micronutrients and the Risk of Allergic Diseases in School Children.International journal of environmental research and public health · 2022
    Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Association between toenail zinc concentrations and incidence of asthma among American young adults: The CARDIA study.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2021
    Article
  18. Review
  19. Review
  20. Predicting Asthma Using Clinical Indexes.Frontiers in pediatrics · 2019
    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

8 authors at 1 institution in 1 country.

Metin UysalolDepartment of Pediatrics, Istanbul University, Istanbul Faculty of Medicine, Capa, 34390 Istanbul, Turkey. metin.uysalol@gmail.com.
Ezgi Pasli Uysalol
Yasin Yilmaz
Gunes Parlakgul
Tulin Ayse Ozden
Hayriye Vehid Ertem
Beyhan Omer
Nedret Uzel
Istanbul University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to show the relationship between recurrence of wheezing and serum levels of vitamin D, zinc, and copper in wheezy children compared with a healthy group.

methodsIn this cross sectional study, seventy-three children with wheezing and seventy-five controls were included without a follow-up period. The clinical characteristics of the children were assessed, the asthma predictive index and temporal pattern of wheeze were determined. The serum levels of vitamin D, zinc, and copper were measured. Pearson correlation analysis was used to evaluate the relationship between homogeneously distributed variables.

resultsThirty-two of the seventy-three children (43.8%) had more than three wheezing attacks (recurrent wheezing). The Asthma Predictive Index index was positive in 26 patients (35.6%). When classified to temporal pattern of wheeze, fifty-three of the study group (72.6%) had episodic wheezing and the remainder (27.4%) was classified as multiple-trigger wheezing. We found no overall significant difference between the study and control group in terms of vitamin D and trace elements . The vitamin D and zinc levels were significantly lower and serum copper and copper/zinc ratio was significantly higher in patients with recurrent wheezing (p =0.03, p <0.01, p =0.013, p <0.01, respectively) positive Asthma Predictive Index and multiple-trigger temporal pattern of wheeze compared with patients with non- recurrent wheezing, negative Asthma Predictive Index and episodic temporal pattern of wheeze.

conclusionIt may be postulated that for the determination of asthma risk in patients with recurrent wheezing, the serum level of vitamin D, copper and zinc can be used as a routine biomarker alongside the Asthma Predictive Index and temporal pattern of wheeze.

Indexed as

Respiratory SoundsAsthmaBiomarkersCase-Control StudiesCopperCross-Sectional StudiesFemaleHumansInfantMaleRecurrenceRespiratory Syncytial VirusesRhinovirusRisk AssessmentVitamin DZincBiomarkersCopperVitamin DZinc

Identifiers

PMID25318349
PMCPMC4286924
OpenAlexW2036680909

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.