Evidence map›Paper›PMID 33641078›Full record

ArticleMolecular neurobiology2021

Treadmill Exercise Alleviates Brain Iron Dyshomeostasis Accelerating Neuronal Amyloid-β Production, Neuronal Cell Death, and Cognitive Impairment in Transgenic Mice Model of Alzheimer's Disease.

Dong-Hun Choi, Ki-Chun Kwon, Dong-Joo Hwang, Jung-Hoon Koo, Hyun-Seob Um, Hong-Sun Song, Ji-Sun Kim, Yongchul Jang, Joon-Yong Cho

Abstract read
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In one paragraph

Article in Molecular neurobiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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  12. Distinct regional vulnerability to Aβ and iron accumulation in post mortem AD brains.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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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 3 institutions in 1 country.

Dong-Hun ChoiExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea.
Ki-Chun KwonExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea.
Dong-Joo HwangExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea.
Jung-Hoon KooExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea.
Hyun-Seob UmDepartment of Sport Medicine, Kon-Yang University, 119 Daehangro, Nonsan, Chungnam, 320-711, Republic of Korea.
Hong-Sun SongKorea Institute of Sport Science, 727 Hwarang-ro, Nowon-gu, Seoul, 01794, Republic of Korea.
Ji-Sun KimDepartment of physical Education, Jung-Won University, 85 Munmu-ro Goesan-eup Goesan-gun, Chungbuk, 28024, Republic of Korea.
Yongchul JangExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea. ycjang28@gmail.com.ORCID http://orcid.org/0000-0002-3688-0172
Joon-Yong ChoExercise Biochemistry Laboratory, Korea National Sport University, 1239 Yangjaedae-ro, Songpa-gu, 05541, Seoul, Republic of Korea. chojy86@knsu.ac.kr.
Korea National Sport University · KRJungwon University · KRKorea Institute of Sport Science · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brain iron increases with age and abnormal brain iron metabolism is proving increasingly likely to be involved in the pathology of Alzheimer's disease (AD). The iron-regulatory effect of furin, a ubiquitously expressed proconvertase, might play an important role in AD. Therefore, there is an urgent need to study the effect of furin on iron regulation in AD. For that purpose, we aimed to determine the role of physical exercise in AD associated with brain iron dyshomeostasis. Treadmill exercise attenuated the AD-related abnormal brain iron regulation by furin in vivo, as demonstrated via experiments in aged APP-C105 mice. Next, we examined whether treadmill exercise decreases excessive iron, directly affecting amyloid-β (Aβ) production through the regulation of α-secretase-dependent processing of amyloid protein precursor (APP) involved in the modulation of furin activity. We first observed that cognitive decline and Aβ-induced neuronal cell death were induced by disruption of APP processing via excess iron-induced disruption of furin activity in aged APP-C105 mice. The induced cognitive decline and cell death were attenuated by treadmill exercise. This result suggests that treadmill exercise alleviated cognitive decline and Aβ-induced neuronal cell death by promoting α-secretase-dependent processing of APP through low iron-induced enhancement of furin activity. This is concomitant with decreasing levels of lipid peroxidation products and promoting antioxidant defense enzyme capacities. Therefore, iron-targeted therapeutic strategies involving treadmill exercise might be useful for patients with AD.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsBrainCell DeathCognitive DysfunctionExercise TestIronMaze LearningMiceMice, TransgenicNeuronsPhysical Conditioning, AnimalAmyloid beta-PeptidesIronAlzheimer’s diseaseAmyloid-βAntioxidant defense enzymes. Treadmill exerciseFurinIronNeuronal cell death

Identifiers

PMID33641078
OpenAlexW3135504420

What OpenQuestion holds

Textmetadata
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.