Evidence map›Paper›PMID 27785756›Full record

ArticleMolecular neurobiology2017

Disrupted Brain Structural Connectivity: Pathological Interactions Between Genetic APOE ε4 Status and Developed MCI Condition.

Chao Ma, Jun Wang, Junying Zhang, Kewei Chen, Xin Li, Ni Shu, Yaojing Chen, Zhen Liu, Zhanjun Zhang

Abstract read
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In one paragraph

Article in Molecular neurobiology, 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
0.5field-weighted citation impact, top 33% 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, 26 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 MaState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Jun WangState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Junying ZhangState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Kewei ChenBABRI Centre, Beijing Normal University, Beijing, 100875, People's Republic of China.
Xin LiState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Ni ShuState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Yaojing ChenState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Zhen LiuState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
Zhanjun ZhangState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China. zhang_rzs@bnu.edu.cn.
Beijing Normal University · CNChinese Institute for Brain Research · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ε4 allele of the apolipoprotein E (APOE) gene and mild cognitive impairment (MCI) are both risk factors for Alzheimer's disease (AD). One factor is genetic, and the other is a developed condition during the aging process. The current study intended to discover the interactions of these two factors, which may be useful in the construction of a sensitive biomarker for early identification and intervention. Eight hundred eighty-five Chinese Han ethnic subjects (aged 55 and older) completed neuropsychological tests and APOE genotyping. One hundred ten of these participants underwent magnetic resonance imaging (MRI) for T1 structural and diffusion tensor imaging scans. Subjects were divided into four groups according to APOE ε4 carrying status and MCI condition: ε4+ MCI, ε4+ normal cognition (NC), ε4- MCI, and ε4- NC. In the studied Han population in Beijing, 16.9 % (ε2ε4 = 1.1 %, ε3ε4 = 14.8 %, and ε4ε4 = 0.9 %) carried at least one ε4 allele. Significant interactions between APOE ε4 and MCI were found in general cognitive function (p = 0.001) and white matter connectivity network (clustering coefficient, p = 0.004, and local efficiency, p = 0.011); the combination of ε4 positivity and MCI was accompanied by reductions in Mini-Mental Status Examination (MMSE) scores, global white matter network connectivity, and the right hippocampus (rHIP) nodal efficiency within that network (false discovery rate (FDR), p < 0.05). Our results suggest the presence of a genetic risk and MCI led to more severe pathological symptoms and could be informative in the implementation of clinical trials for early stages of AD.

Indexed as

AgedApolipoprotein E4BrainCognitive DysfunctionFemaleHippocampusHumansMaleNerve NetNeuropsychological TestsWhite MatterApolipoprotein E4APOE ε4Brain networkHippocampusInteractionMild cognitive impairment

Identifiers

PMID27785756
OpenAlexW2540828910

What OpenQuestion holds

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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.