Evidence map›Paper›PMID 28336919›Full record

ArticleScientific reports2017

Altered spontaneous brain activity in chronic smokers revealed by fractional ramplitude of low-frequency fluctuation analysis: a preliminary study.

Chao Wang, Zhujing Shen, Peiyu Huang, Hualiang Yu, Wei Qian, Xiaojun Guan, Quanquan Gu, Yihong Yang, Minming Zhang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 23% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

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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

9 authors at 2 institutions in 2 countries.

Chao WangDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Zhujing ShenDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Peiyu HuangDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Hualiang YuDepartment of Psychiatry, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Wei QianDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xiaojun GuanDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Quanquan GuDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Yihong YangNeuroimaging Research Branch, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, 21224, USA.
Minming ZhangDepartment of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. zhangminming@zju.edu.cn.
Second Affiliated Hospital of Zhejiang University · CNNational Institute on Drug Abuse · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although a substantial body of previous functional magnetic resonance imaging (fMRI) studies have revealed different brain responses to external stimuli in chronic cigarette smokers compared with nonsmokers, only a few studies assessed brain spontaneous activity in the resting state in chronic smokers. The aim of this study was to investigate alterations of brain activity during the resting state in chronic smokers using fractional amplitude of low-frequency fluctuation (fALFF). In the present study, 55 smokers and 49 healthy nonsmokers were included. All the subjects underwent resting-state fMRI scans and the data were analyzed by the fALFF approach. The smokers showed significantly decreased fALFF in the left precuneus, right inferior temporal and occipital gyrus(ITG/IOG), while significantly increased fALFF in the right caudate. Subsequent correlation analysis revealed that the fALFF values of the left precuneus and right ITG/IOG were positively correlated with years of smoking across the smokers. This resting-state fMRI study suggests that the changed spontaneous neuronal activity, as reflected by the fALFF, in these regions may be implicated in the underlying the pathophysiology of smoking.

Indexed as

Magnetic Resonance ImagingAdultBrainFemaleHealthy VolunteersHumansMaleMiddle AgedSmokersSmokingTime FactorsYoung Adult

Identifiers

PMID28336919
PMCPMC5428464
OpenAlexW2595539985

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.