Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation

Functional constipation (FCon) is a common functional gastrointestinal disorder. A considerable portion of patients with FCon is associated with anxiety/depressive status (FCAD). Previous neuroimaging studies mainly focused on patients with FCon without distinguishing FCAD from FCon patients without...

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Main Authors: Shijun Duan, Lei Liu, Guanya Li, Jia Wang, Yang Hu, Wenchao Zhang, Zongxin Tan, Zhenzhen Jia, Lei Zhang, Karen M. von Deneen, Yi Zhang, Yongzhan Nie, Guangbin Cui
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-03-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2021.628880/full
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author Shijun Duan
Lei Liu
Guanya Li
Jia Wang
Yang Hu
Wenchao Zhang
Zongxin Tan
Zhenzhen Jia
Lei Zhang
Karen M. von Deneen
Yi Zhang
Yongzhan Nie
Guangbin Cui
author_facet Shijun Duan
Lei Liu
Guanya Li
Jia Wang
Yang Hu
Wenchao Zhang
Zongxin Tan
Zhenzhen Jia
Lei Zhang
Karen M. von Deneen
Yi Zhang
Yongzhan Nie
Guangbin Cui
author_sort Shijun Duan
collection DOAJ
description Functional constipation (FCon) is a common functional gastrointestinal disorder. A considerable portion of patients with FCon is associated with anxiety/depressive status (FCAD). Previous neuroimaging studies mainly focused on patients with FCon without distinguishing FCAD from FCon patients without anxiety/depressive status (FCNAD). Differences in brain functions between these two subtypes remain unclear. Thus, we employed resting-state functional magnetic resonance imaging (RS-fMRI) and graph theory method to investigate differences in brain network connectivity and topology in 41 FCAD, 42 FCNAD, and 43 age- and gender-matched healthy controls (HCs). FCAD/FCNAD showed significantly lower normalized clustering coefficient and small-world-ness. Both groups showed altered nodal degree/efficiency mainly in the rostral anterior cingulate cortex (rACC), precentral gyrus (PreCen), supplementary motor area (SMA), and thalamus. In the FCAD group, nodal degree in the SMA was negatively correlated with difficulty of defecation, and abdominal pain was positively correlated with nodal degree/efficiency in the rACC, which had a lower within-module nodal degree. The salience network (SN) exhibited higher functional connectivity (FC) with the sensorimotor network (SMN) in FCAD/FCNAD, and FC between these two networks was negatively correlated with anxiety ratings in FCAD group. Additionally, FC of anterior insula (aINS)–rACC was only correlated with constipation symptom (i.e., abdominal pain) in the FCNAD group. In the FCAD group, FCs of dorsomedial prefrontal cortex–rACC, PreCen–aINS showed correlations with both constipation symptom (i.e., difficulty of defecation) and depressive status. These findings indicate the differences in FC of the SN–SMN between FCAD and FCNAD and provide neuroimaging evidence based on brain function, which portrays important clues for improving new treatment strategies.
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spelling doaj.art-b05b011eba7741b78011a8c1f20ea7962022-12-21T22:53:17ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2021-03-011510.3389/fnins.2021.628880628880Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional ConstipationShijun Duan0Lei Liu1Guanya Li2Jia Wang3Yang Hu4Wenchao Zhang5Zongxin Tan6Zhenzhen Jia7Lei Zhang8Karen M. von Deneen9Yi Zhang10Yongzhan Nie11Guangbin Cui12Department of Radiology, Tangdu Hospital, Air Force Medical University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaCenter for Brain Imaging, School of Life Sciences and Technology, Xidian University, Xi’an, ChinaState Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi’an, ChinaDepartment of Radiology, Tangdu Hospital, Air Force Medical University, Xi’an, ChinaFunctional constipation (FCon) is a common functional gastrointestinal disorder. A considerable portion of patients with FCon is associated with anxiety/depressive status (FCAD). Previous neuroimaging studies mainly focused on patients with FCon without distinguishing FCAD from FCon patients without anxiety/depressive status (FCNAD). Differences in brain functions between these two subtypes remain unclear. Thus, we employed resting-state functional magnetic resonance imaging (RS-fMRI) and graph theory method to investigate differences in brain network connectivity and topology in 41 FCAD, 42 FCNAD, and 43 age- and gender-matched healthy controls (HCs). FCAD/FCNAD showed significantly lower normalized clustering coefficient and small-world-ness. Both groups showed altered nodal degree/efficiency mainly in the rostral anterior cingulate cortex (rACC), precentral gyrus (PreCen), supplementary motor area (SMA), and thalamus. In the FCAD group, nodal degree in the SMA was negatively correlated with difficulty of defecation, and abdominal pain was positively correlated with nodal degree/efficiency in the rACC, which had a lower within-module nodal degree. The salience network (SN) exhibited higher functional connectivity (FC) with the sensorimotor network (SMN) in FCAD/FCNAD, and FC between these two networks was negatively correlated with anxiety ratings in FCAD group. Additionally, FC of anterior insula (aINS)–rACC was only correlated with constipation symptom (i.e., abdominal pain) in the FCNAD group. In the FCAD group, FCs of dorsomedial prefrontal cortex–rACC, PreCen–aINS showed correlations with both constipation symptom (i.e., difficulty of defecation) and depressive status. These findings indicate the differences in FC of the SN–SMN between FCAD and FCNAD and provide neuroimaging evidence based on brain function, which portrays important clues for improving new treatment strategies.https://www.frontiersin.org/articles/10.3389/fnins.2021.628880/fullfunctional constipationanxiety/depressionresting-state fMRIbrain connectomegraph-theory approachmodularity
spellingShingle Shijun Duan
Lei Liu
Guanya Li
Jia Wang
Yang Hu
Wenchao Zhang
Zongxin Tan
Zhenzhen Jia
Lei Zhang
Karen M. von Deneen
Yi Zhang
Yongzhan Nie
Guangbin Cui
Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
Frontiers in Neuroscience
functional constipation
anxiety/depression
resting-state fMRI
brain connectome
graph-theory approach
modularity
title Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
title_full Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
title_fullStr Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
title_full_unstemmed Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
title_short Altered Functional Connectivity Within and Between Salience and Sensorimotor Networks in Patients With Functional Constipation
title_sort altered functional connectivity within and between salience and sensorimotor networks in patients with functional constipation
topic functional constipation
anxiety/depression
resting-state fMRI
brain connectome
graph-theory approach
modularity
url https://www.frontiersin.org/articles/10.3389/fnins.2021.628880/full
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