Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study
Abstract. Background. Resting-state functional magnetic resonance imaging (rs-fMRI) is a promising method for the study of brain function. Typically, rs-fMRI is performed on anesthetized animals. Although different functional connectivity (FC) in various anesthetics on whole brain have been studied,...
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2021-02-01
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Online Access: | http://journals.lww.com/10.1097/CM9.0000000000001126 |
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doaj-a661a8c0813343cfa0743dbc7b8ddf542021-02-26T03:29:00ZengWolters KluwerChinese Medical Journal0366-69992542-56412021-02-01134334435210.1097/CM9.0000000000001126202102050-00012Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging studyYang LiuHui-Qun FuYan WuZun-Shu DuBo-Ran LiXin GaoGuan-Wen LinShu-Yi YangTian-Long WangYan-Jie Yin and Xiu-Yuan HaoAbstract. Background. Resting-state functional magnetic resonance imaging (rs-fMRI) is a promising method for the study of brain function. Typically, rs-fMRI is performed on anesthetized animals. Although different functional connectivity (FC) in various anesthetics on whole brain have been studied, few studies have focused on different FC in the aged brain. Here, we measured FC under three commonly used anesthesia methods and analyzed data to determine if the FC in whole brain analysis were similar among groups. Methods. Twenty-four male aged Wistar rats were randomly divided into three groups (n = 8 in each group). Anesthesia was performed under either isoflurane (ISO), combined ISO + dexmedetomidine (DEX) or α-chloralose (AC) according to the groups. Data of rs-fMRI was analyzed by FC in a voxel-wise way. Differences in the FC maps between the groups were analyzed by one-way analysis of variance and post hoc two-sample t tests. Results. Compared with ISO + DEX anesthesia, ISO anesthesia caused increased FC in posterior brain and decreased FC in the middle brain of the aged rat. AC anesthesia caused global suppression as no increase in FC was observed. Conclusion. ISO could be used as a substitute for ISO + DEX in rat default mode network studies if the left temporal association cortex is not considered important.http://journals.lww.com/10.1097/CM9.0000000000001126 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yang Liu Hui-Qun Fu Yan Wu Zun-Shu Du Bo-Ran Li Xin Gao Guan-Wen Lin Shu-Yi Yang Tian-Long Wang Yan-Jie Yin and Xiu-Yuan Hao |
spellingShingle |
Yang Liu Hui-Qun Fu Yan Wu Zun-Shu Du Bo-Ran Li Xin Gao Guan-Wen Lin Shu-Yi Yang Tian-Long Wang Yan-Jie Yin and Xiu-Yuan Hao Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study Chinese Medical Journal |
author_facet |
Yang Liu Hui-Qun Fu Yan Wu Zun-Shu Du Bo-Ran Li Xin Gao Guan-Wen Lin Shu-Yi Yang Tian-Long Wang Yan-Jie Yin and Xiu-Yuan Hao |
author_sort |
Yang Liu |
title |
Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
title_short |
Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
title_full |
Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
title_fullStr |
Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
title_full_unstemmed |
Influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
title_sort |
influence of three different anesthesia protocols on aged rat brain: a resting-state functional magnetic resonance imaging study |
publisher |
Wolters Kluwer |
series |
Chinese Medical Journal |
issn |
0366-6999 2542-5641 |
publishDate |
2021-02-01 |
description |
Abstract. Background. Resting-state functional magnetic resonance imaging (rs-fMRI) is a promising method for the study of brain function. Typically, rs-fMRI is performed on anesthetized animals. Although different functional connectivity (FC) in various anesthetics on whole brain have been studied, few studies have focused on different FC in the aged brain. Here, we measured FC under three commonly used anesthesia methods and analyzed data to determine if the FC in whole brain analysis were similar among groups.
Methods. Twenty-four male aged Wistar rats were randomly divided into three groups (n = 8 in each group). Anesthesia was performed under either isoflurane (ISO), combined ISO + dexmedetomidine (DEX) or α-chloralose (AC) according to the groups. Data of rs-fMRI was analyzed by FC in a voxel-wise way. Differences in the FC maps between the groups were analyzed by one-way analysis of variance and post hoc two-sample t tests.
Results. Compared with ISO + DEX anesthesia, ISO anesthesia caused increased FC in posterior brain and decreased FC in the middle brain of the aged rat. AC anesthesia caused global suppression as no increase in FC was observed.
Conclusion. ISO could be used as a substitute for ISO + DEX in rat default mode network studies if the left temporal association cortex is not considered important. |
url |
http://journals.lww.com/10.1097/CM9.0000000000001126 |
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