Evidence map›Paper›PMID 34981175›Full record

ArticleNeuroradiology2022

Magnetic susceptibility in the deep gray matter may be modulated by apolipoprotein E4 and age with regional predilections: a quantitative susceptibility mapping study.

Younghee Yim, Jong Duck Choi, Jun Heong Cho, Yeonsil Moon, Seol-Heui Han, Won-Jin Moon

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In one paragraph

Article in Neuroradiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 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

6 authors at 2 institutions in 1 country.

Younghee YimDepartment of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1, Neungdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, 05030, Republic of Korea.
Jong Duck ChoiDepartment of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1, Neungdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, 05030, Republic of Korea.
Jun Heong ChoDepartment of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1, Neungdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, 05030, Republic of Korea.
Yeonsil MoonDepartment of Neurology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Republic of Korea.
Seol-Heui HanDepartment of Neurology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Republic of Korea.
Won-Jin MoonDepartment of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1, Neungdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, 05030, Republic of Korea. mdmoonwj@naver.com.ORCID http://orcid.org/0000-0002-8925-7376
Konkuk University Medical Center · KRKonkuk University · KR

Funding

Korea Health Industry Development Institute HI18C1038National Research Foundation of Korea 2017R1A2B4010634
6 · The paper itself

Abstract

purposeTo examine the relationship between apolipoprotein E gene (APOE) mutation status and iron accumulation in the deep gray matter of subjects with cognitive symptoms using quantitative susceptibility mapping (QSM).

methodsA total of 105 patients with cognitive symptoms were enrolled. QSM data were generated from 3D gradient-echo data using an STI Suite algorithm. A region of interest-based analysis with QSM was performed in the deep gray matter. Differences between APOE4 carriers and non-carriers were assessed by analysis of covariance. Multiple regression analysis was performed to identify the factors associated with magnetic susceptibility.

resultsClinical characters such as age, education, MMSE, vascular risk burden, and systolic blood pressure differ between APOE4 carrier and non-carrier groups. The APOE4 carrier group had higher magnetic susceptibility values than the non-carrier group, with significant differences in the caudate (p = 0.004), putamen (p < 0.0001), and globus pallidus (p < 0.0001) which imply higher iron accumulation. In a multiple regression analysis, APOE4 status was found to be a predictor of magnetic susceptibility value in the globus pallidus (p = 0.03); age for magnetic susceptibility value in the caudate nucleus (p = 0.0064); and age and hippocampal atrophy for magnetic susceptibility value in the putamen (p < 0.05).

conclusionOur study demonstrates that magnetic susceptibility in globus pallidus is related to APOE4 status while those of caudate and putamen are related to other factors including age. It suggests that brain iron accumulation in the deep gray matter is modulated by APOE4 and age with differential regional predilection.

Indexed as

Apolipoprotein E4Apolipoproteins EBrainGray MatterBrain MappingHumansIronMagnetic PhenomenaMagnetic Resonance ImagingApoE protein, humanApolipoprotein E4Apolipoproteins EIronAlzheimer’s diseaseDementiaIronMagnetic resonance imagingQuantitative susceptibility mapping

Identifiers

PMID34981175
OpenAlexW4206401893

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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.