Evidence map›Paper›PMID 42321462›Full record

ArticleScientific reports2026

Chronic exposure to LED lighting impairs prefrontal cortex-dependent cognitive functions in adolescent rats.

Jing Wang, Xiaona Wang, Yingying Han, Chong Sun, Shunqi Wang, Chaolin Ma

Abstract read
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Jing Wang *Department of Neurology, the Second Affiliated Hospital, Jiangxi Province Key Laboratory of Brain Science and Brian Health, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China.
Xiaona Wang *Department of Neurology, the Second Affiliated Hospital, Jiangxi Province Key Laboratory of Brain Science and Brian Health, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China.
Yingying HanSchool of Life Sciences, Nanchang University, Nanchang, 330031, Jiangxi, China.
Chong SunDepartment of Neurology, the Second Affiliated Hospital, Jiangxi Province Key Laboratory of Brain Science and Brian Health, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China.
Shunqi WangDepartment of Neurology, the Second Affiliated Hospital, Jiangxi Province Key Laboratory of Brain Science and Brian Health, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China. wsqi@ncu.edu.cn.ORCID 0000-0002-4918-6550
Chaolin MaDepartment of Neurology, the Second Affiliated Hospital, Jiangxi Province Key Laboratory of Brain Science and Brian Health, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China. chaolinma@ncu.edu.cn.

Funding

Key Project of Jiangxi Provincial Natural Science Foundation 20252BAC250141National Natural Science Foundation of China 32260194National Natural Science Foundation of China 32560199Natural Science Foundation of Jiangxi Province 20224BAB206038Natural Science Foundation of Jiangxi Province 20224BAB206042
6 · The paper itself

Abstract

The Light-emitting diodes (LEDs) have already replaced conventional lighting sources due to their energy efficiency and environmental benefits. Although previous studies suggest that chronic exposure to LED may affect human physiological health, its impact on cognitive functions remains unclear. To simulate typical human lighting conditions, we established an animal model which Sprague-Dawley (SD) rats exposed to LED light daily from 18:00 to 22:00 (ZT12-ZT16) for one month. Cognitive functions were assessed using social interaction, Morris water maze, and sound-location-association tasks. Results indicated that chronic LED exposure impaired social interaction ability, spatial learning and memory, and auditory-spatial associative learning. Immunohistochemical and Western blot analyses revealed a reduction in myelination levels and a decreased number of mature oligodendrocytes in the medial prefrontal cortex (mPFC). These findings suggest that chronic LED exposure impairs mPFC-dependent cognitive functions, possibly through downregulation of myelin integrity in the mPFC.

Indexed as

CognitionLightLightingPrefrontal CortexAnimalsMaleMaze LearningMyelin SheathRatsRats, Sprague-DawleyCognitive functionsLED lightMyelinationPrefrontal Cortex (PFC)Rats

Identifiers

PMID42321462
PMCPMC13554219

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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.