The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model

Background and Objective. TWIK-related acid-sensitive potassium channel 1 (TASK-1) is closely related to respiratory central control and neuronal injury. We investigated the effect of MV on TASK-1’s functions and explored the mechanism using a rat model. Methods. Male Sprague-Dawley rats were random...

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Main Authors: Buqi Na, Hong Zhang, Guangfa Wang, Li Dai, Guoguang Xia
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Canadian Respiratory Journal
Online Access:http://dx.doi.org/10.1155/2017/8530352
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author Buqi Na
Hong Zhang
Guangfa Wang
Li Dai
Guoguang Xia
author_facet Buqi Na
Hong Zhang
Guangfa Wang
Li Dai
Guoguang Xia
author_sort Buqi Na
collection DOAJ
description Background and Objective. TWIK-related acid-sensitive potassium channel 1 (TASK-1) is closely related to respiratory central control and neuronal injury. We investigated the effect of MV on TASK-1’s functions and explored the mechanism using a rat model. Methods. Male Sprague-Dawley rats were randomized to three groups: (1) high tidal volume (HVt): MV for four hours with Vt at 10 mL/kg; (2) low Vt (LVt): MV for four hours with Vt at 5 mL/kg; (3) basal (BAS): anesthetized and unventilated animals. We measured lung histology and plasma and brain levels of proteins (IL-6, TNF-α, and S-100B) and determined TASK-1 levels in rat brainstems as a marker of respiratory centre activity. Results. The LISs (lung injury scores) were significantly higher in the HVt group. Brain inflammatory cytokines levels were different to those in serum. TASK-1 levels were significantly lower in the MV groups (P=0.002) and the HVt group tended to have a lower level of TASK-1 than the LVt group. Conclusion. MV causes not only lung injury, but also brain injury. MV affects the regulation of the respiratory centre, perhaps causing damage to it. Inflammation is probably not the main mechanism of ventilator-related brain injury.
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publishDate 2017-01-01
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series Canadian Respiratory Journal
spelling doaj-art-c908df92f765475cb56aae8eedfc425a2025-02-03T05:49:32ZengWileyCanadian Respiratory Journal1198-22411916-72452017-01-01201710.1155/2017/85303528530352The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat ModelBuqi Na0Hong Zhang1Guangfa Wang2Li Dai3Guoguang Xia4Department of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, ChinaDepartment of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, ChinaDepartment of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, ChinaDepartment of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, ChinaDepartment of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, ChinaBackground and Objective. TWIK-related acid-sensitive potassium channel 1 (TASK-1) is closely related to respiratory central control and neuronal injury. We investigated the effect of MV on TASK-1’s functions and explored the mechanism using a rat model. Methods. Male Sprague-Dawley rats were randomized to three groups: (1) high tidal volume (HVt): MV for four hours with Vt at 10 mL/kg; (2) low Vt (LVt): MV for four hours with Vt at 5 mL/kg; (3) basal (BAS): anesthetized and unventilated animals. We measured lung histology and plasma and brain levels of proteins (IL-6, TNF-α, and S-100B) and determined TASK-1 levels in rat brainstems as a marker of respiratory centre activity. Results. The LISs (lung injury scores) were significantly higher in the HVt group. Brain inflammatory cytokines levels were different to those in serum. TASK-1 levels were significantly lower in the MV groups (P=0.002) and the HVt group tended to have a lower level of TASK-1 than the LVt group. Conclusion. MV causes not only lung injury, but also brain injury. MV affects the regulation of the respiratory centre, perhaps causing damage to it. Inflammation is probably not the main mechanism of ventilator-related brain injury.http://dx.doi.org/10.1155/2017/8530352
spellingShingle Buqi Na
Hong Zhang
Guangfa Wang
Li Dai
Guoguang Xia
The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
Canadian Respiratory Journal
title The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
title_full The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
title_fullStr The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
title_full_unstemmed The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
title_short The Effect of Mechanical Ventilation on TASK-1 Expression in the Brain in a Rat Model
title_sort effect of mechanical ventilation on task 1 expression in the brain in a rat model
url http://dx.doi.org/10.1155/2017/8530352
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