The Impact of Persistent Noise Exposure under Inflammatory Conditions

The aim of this study was to investigate the impact of noise exposure in an intensive care unit (ICU) environment on the development of postoperative delirium in a mouse model that mimics the ICU environment. Additionally, we aimed to identify the underlying mechanisms contributing to delirium and p...

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Main Authors: Inja Cho, Jeongmin Kim, Seungho Jung, So Yeon Kim, Eun Jung Kim, Sungji Choo, Eun Hee Kam, Bon-Nyeo Koo
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Healthcare
Subjects:
Online Access:https://www.mdpi.com/2227-9032/11/14/2067
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author Inja Cho
Jeongmin Kim
Seungho Jung
So Yeon Kim
Eun Jung Kim
Sungji Choo
Eun Hee Kam
Bon-Nyeo Koo
author_facet Inja Cho
Jeongmin Kim
Seungho Jung
So Yeon Kim
Eun Jung Kim
Sungji Choo
Eun Hee Kam
Bon-Nyeo Koo
author_sort Inja Cho
collection DOAJ
description The aim of this study was to investigate the impact of noise exposure in an intensive care unit (ICU) environment on the development of postoperative delirium in a mouse model that mimics the ICU environment. Additionally, we aimed to identify the underlying mechanisms contributing to delirium and provide evidence for reducing the risk of delirium. In this study, to mimic an ICU environment, lipopolysaccharide (LPS)-injected sepsis mouse models were exposed to a 75 dB noise condition. Furthermore, we assessed neurobehavioral function and observed the level of neuroinflammatory response and blood–brain barrier (BBB) integrity in the hippocampal region. The LPS-injected sepsis mouse model exposed to noise exhibited increased anxiety-like behavior and cognitive impairment. Moreover, severe neuroinflammation and BBB disruption were detected in the hippocampal region. This study provides insights suggesting that persistent noise exposure under systemic inflammatory conditions may cause cognitive dysfunction and anxiety- like behavior via the mediation of BBB disruption and neuroinflammation. As a result, we suggest that the detailed regulation of noise exposure may be required to prevent the development of postoperative delirium.
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spelling doaj.art-c4dc8bcc9cc3492eb56f3ff10bb4204d2023-11-18T19:33:31ZengMDPI AGHealthcare2227-90322023-07-011114206710.3390/healthcare11142067The Impact of Persistent Noise Exposure under Inflammatory ConditionsInja Cho0Jeongmin Kim1Seungho Jung2So Yeon Kim3Eun Jung Kim4Sungji Choo5Eun Hee Kam6Bon-Nyeo Koo7Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of KoreaThe aim of this study was to investigate the impact of noise exposure in an intensive care unit (ICU) environment on the development of postoperative delirium in a mouse model that mimics the ICU environment. Additionally, we aimed to identify the underlying mechanisms contributing to delirium and provide evidence for reducing the risk of delirium. In this study, to mimic an ICU environment, lipopolysaccharide (LPS)-injected sepsis mouse models were exposed to a 75 dB noise condition. Furthermore, we assessed neurobehavioral function and observed the level of neuroinflammatory response and blood–brain barrier (BBB) integrity in the hippocampal region. The LPS-injected sepsis mouse model exposed to noise exhibited increased anxiety-like behavior and cognitive impairment. Moreover, severe neuroinflammation and BBB disruption were detected in the hippocampal region. This study provides insights suggesting that persistent noise exposure under systemic inflammatory conditions may cause cognitive dysfunction and anxiety- like behavior via the mediation of BBB disruption and neuroinflammation. As a result, we suggest that the detailed regulation of noise exposure may be required to prevent the development of postoperative delirium.https://www.mdpi.com/2227-9032/11/14/2067noise exposureinflammationneuroinflammationcognitive impairmentanxiety-like behaviorblood–brain barrier
spellingShingle Inja Cho
Jeongmin Kim
Seungho Jung
So Yeon Kim
Eun Jung Kim
Sungji Choo
Eun Hee Kam
Bon-Nyeo Koo
The Impact of Persistent Noise Exposure under Inflammatory Conditions
Healthcare
noise exposure
inflammation
neuroinflammation
cognitive impairment
anxiety-like behavior
blood–brain barrier
title The Impact of Persistent Noise Exposure under Inflammatory Conditions
title_full The Impact of Persistent Noise Exposure under Inflammatory Conditions
title_fullStr The Impact of Persistent Noise Exposure under Inflammatory Conditions
title_full_unstemmed The Impact of Persistent Noise Exposure under Inflammatory Conditions
title_short The Impact of Persistent Noise Exposure under Inflammatory Conditions
title_sort impact of persistent noise exposure under inflammatory conditions
topic noise exposure
inflammation
neuroinflammation
cognitive impairment
anxiety-like behavior
blood–brain barrier
url https://www.mdpi.com/2227-9032/11/14/2067
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