Evidence map›Paper›PMID 29474453›Full record

ArticlePloS one2018

Detection of mitochondrial DNA with 4977 bp deletion in leukocytes of patients with ischemic stroke.

Yu-Hua Huang, Chiung-Mei Chen, Yun-Shien Lee, Kuo-Hsuan Chang, Huei-Wen Chen, Yi-Chun Chen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
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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

6 authors at 2 institutions in 1 country.

Yu-Hua HuangDepartment of Neurology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.
Chiung-Mei ChenDepartment of Neurology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.
Yun-Shien LeeDepartment of Biotechnology, Ming Chuan University, Taoyuan, Taiwan.
Kuo-Hsuan ChangDepartment of Neurology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.
Huei-Wen ChenDepartment of Neurology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.
Yi-Chun ChenDepartment of Neurology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.ORCID 0000-0002-2457-5023
Chang Gung University · TWMing Chuan University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCoronary artery disease is associated with a common mitochondrial DNA alteration, a 4977 bp deletion (mtDNA4977). The role of mtDNA4977 in ischemic stroke is unknown.

methodsReal-time quantitative PCR was performed to quantify total mtDNA and mtDNA4977 in leukocytes in 283 ischemic stroke cases and 135 controls. Ratios of mtDNA4977 to total-mtDNA and total-mtDNA to nuclear-DNA were calculated. Nested PCR and Sanger sequencing were used to confirm undetectable levels of mtDNA4977.

resultsFor 191 patients and 74 control subjects in the male group and 92 patients and 61 control subjects in the female group, there were no significant between-group differences in age, cholesterol level, body mass index, stroke severity, or 4977 deletion. After adjusting for confounding factors, there was no correlation between mtDNA4977 amount and infarction risk, recurrent stroke, or stroke severity. However, mtDNA4977 was undetected in 6.94% subjects, and these individuals had a higher prevalence of stroke than those with detectable mtDNA4977 (OR: 0.181, 95% CI 0.041-0.798, p = 0.024). Additionally, mtDNA4977 status had no effect on stroke prognosis, including stroke severity and recurrent stroke.

conclusionIn conclusion, there was no apparent association between mtDNA4977 deletion and cerebral infarction. Undetectable mtDNA4977 may be a marker or risk factor for ischemic stroke.

Indexed as

Base SequenceLeukocytesReal-Time Polymerase Chain ReactionSequence DeletionAgedAged, 80 and overBrain InfarctionDNA, MitochondrialFemaleHumansMaleMiddle AgedStrokeDNA, Mitochondrial

Identifiers

PMID29474453
PMCPMC5825052
OpenAlexW2790804885

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.