Evidence map›Paper›PMID 42352656›Full record

ArticleBrain sciences2026

Progressive Behavioral Impairment and Region-Specific Monoaminergic Alterations in a Rat Model of Delayed Neuropsychiatric Sequelae After Acute Carbon Monoxide Poisoning.

Sungwoo Choi, Heewon Yang, Yuri Kang, Minji Lee, Doo Hwan Lee, Sangchun Choi

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

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Sungwoo ChoiEmergency Department, Soonchunhyang University College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.
Heewon YangEmergency Department, Ajou University School of Medicine, Suwon 16499, Republic of Korea.ORCID 0000-0002-7592-2240
Yuri KangHyangseol Clinical Laboratory, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.
Minji LeeHyangseol Clinical Laboratory, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.
Doo Hwan LeeHyangseol Clinical Laboratory, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.
Sangchun ChoiEmergency Department, Soonchunhyang University College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.ORCID 0000-0003-2271-3434

Funding

National Research Foundation of Korea RS-2023-00249161
6 · The paper itself

Abstract

backgroundAcute carbon monoxide (CO) poisoning can cause delayed neuropsychiatric sequelae (DNS) after a latent period, yet its pathophysiology remains poorly understood because of the lack of reproducible experimental models.

methodsWe established a rat model of DNS using acute CO poisoning (6500 ppm for 25 min). Behavioral assessments evaluated cognition, locomotion, sensorimotor function, exploratory behavior, and reward responsiveness. Histopathological analyses assessed brain injury, and regional monoamine concentrations were quantified using high-performance liquid chromatography.

resultsCO-exposed rats developed delayed and progressive behavioral abnormalities, including impaired spatial working memory, reduced locomotor activity, sensorimotor dysfunction, and diminished exploratory behavior. At 4 weeks, CO-exposed rats showed reduced Y-maze alternation (49.3% vs. 72.2%,

conclusionAcute CO poisoning induces a reproducible DNS characterized by progressive behavioral impairment, persistent histopathological abnormalities, and regional monoaminergic dysregulation. These findings support the concept that DNS is an evolving neuropathological process and identify dopaminergic pathways as potential therapeutic targets.

Indexed as

carbon monoxide poisoningcognitive impairmentdelayed neuropsychiatric sequelaedopaminemonoaminergic dysfunctionneuroinflammationrat model

Identifiers

PMID42352656
PMCPMC13297533

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LicenceCC BY
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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 Socratic graph.