Evidence map›Paper›PMID 26486181›Full record

SynthesisScientific reports2015

Genetically-reduced serum ACE activity might be a causal risk factor for obstructive sleep apnea syndrome: A meta-analysis.

Lan He, Bin Wang, Wei-Ya Lang, Jing Xue, Da-Long Zhao, Guo-Feng Li, Li-Hong Zheng, Hong-Ming Pan

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Observational
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.

Lan HeBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Bin WangBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Wei-Ya LangBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Jing XueBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Da-Long ZhaoBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Guo-Feng LiBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Li-Hong ZhengBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Hong-Ming PanBasic Medical Science College, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
Qiqihar Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We meta-analytically summarized the associations of angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism with ACE activity and obstructive sleep apnea syndrome (OSAS) to see whether ACE activity is causally associated with OSAS. Literature search and data abstraction were done in duplicate. Sixteen articles including 2060 OSAS patients and 1878 controls were summarized. Overall, no significance was observed for the association of I/D polymorphism with OSAS, whereas carriers of II genotype (weighted mean difference or WMD, 95% confidence interval or CI, P: -11.976, -17.168 to -6.783, <0.001) or I allele (-9.842, -14.766 to -4.918, <0.001) had a lower level of serum ACE activity compared with DD genotype carriers, respectively. In subgroup analyses, carriers of II genotype were 3.806 times more likely to develop OSAS (95% CI, P: 1.865 to 7.765, <0.001) in OSAS patients with hypertension, without heterogeneity. Mendelian randomization analysis indicated there was 37.4% (95% CI: 1.115 to 3.142) and 32.4% (1.106 to 2.845) increased risk of OSAS by a reduction of 1 U/L in ACE activity for the II genotype and I allele carriers versus DD genotype carriers, respectively. There was no observable publication bias. Collectively, genetically-reduced serum ACE activity might be a causal risk factor for OSAS.

Indexed as

Genetic Association StudiesAllelesFemaleGenotypeHumansHypertensionINDEL MutationMalePeptidyl-Dipeptidase APolymorphism, Single NucleotideRisk FactorsSleep Apnea, ObstructiveACE protein, humanPeptidyl-Dipeptidase A

Identifiers

PMID26486181
PMCPMC4614079
OpenAlexW2408899696

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.