Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression

Numerous neuroimaging studies have demonstrated that the brain plasticity is associated with chronic low back pain (cLBP). However, there is a lack of knowledge regarding the underlying mechanisms of thalamic pathways for chronic pain and psychological effects in cLBP caused by lumbar disc herniatio...

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Main Authors: Hong Li, Qiaoyan Song, Ruya Zhang, Youlong Zhou, Yazhuo Kong
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2021/7498714
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author Hong Li
Qiaoyan Song
Ruya Zhang
Youlong Zhou
Yazhuo Kong
author_facet Hong Li
Qiaoyan Song
Ruya Zhang
Youlong Zhou
Yazhuo Kong
author_sort Hong Li
collection DOAJ
description Numerous neuroimaging studies have demonstrated that the brain plasticity is associated with chronic low back pain (cLBP). However, there is a lack of knowledge regarding the underlying mechanisms of thalamic pathways for chronic pain and psychological effects in cLBP caused by lumbar disc herniation (LDH). Combining psychophysics and magnetic resonance imaging (MRI), we investigated the structural and functional brain plasticity in 36 patients with LDH compared with 38 age- and gender-matched healthy controls. We found that (1) LDH patients had increased psychophysical disturbs (i.e., depression and anxiety), and depression (Beck-Depression Inventory, BDI) was found to be an outstanding significant factor to predict chronic pain (short form of the McGill Pain Questionnaire, SF-MPQ); (2) the LDH group showed significantly smaller fractional anisotropy values in the region of posterior corona radiate while gray matter volumes were comparable in both groups; (3) resting state functional connectivity analysis revealed that LDH patients exhibited increased temporal coupling between the thalamus and dorsolateral prefrontal cortex (DLPFC), which further mediate the relationship from chronic pain to depression. Our results emphasized that thalamic pathways underlying prefrontal cortex might play a key role in regulating chronic pain and depression of the pathophysiology of LDH.
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spelling doaj-art-5fbca2f6813a418eaf9830af2068f8e42025-02-03T05:47:08ZengWileyNeural Plasticity2090-59041687-54432021-01-01202110.1155/2021/74987147498714Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and DepressionHong Li0Qiaoyan Song1Ruya Zhang2Youlong Zhou3Yazhuo Kong4CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing 100101, ChinaDepartment of Pain, The Third Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou 450008, ChinaDepartment of Pain, The Third Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou 450008, ChinaDepartment of Pain, The Third Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou 450008, ChinaCAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing 100101, ChinaNumerous neuroimaging studies have demonstrated that the brain plasticity is associated with chronic low back pain (cLBP). However, there is a lack of knowledge regarding the underlying mechanisms of thalamic pathways for chronic pain and psychological effects in cLBP caused by lumbar disc herniation (LDH). Combining psychophysics and magnetic resonance imaging (MRI), we investigated the structural and functional brain plasticity in 36 patients with LDH compared with 38 age- and gender-matched healthy controls. We found that (1) LDH patients had increased psychophysical disturbs (i.e., depression and anxiety), and depression (Beck-Depression Inventory, BDI) was found to be an outstanding significant factor to predict chronic pain (short form of the McGill Pain Questionnaire, SF-MPQ); (2) the LDH group showed significantly smaller fractional anisotropy values in the region of posterior corona radiate while gray matter volumes were comparable in both groups; (3) resting state functional connectivity analysis revealed that LDH patients exhibited increased temporal coupling between the thalamus and dorsolateral prefrontal cortex (DLPFC), which further mediate the relationship from chronic pain to depression. Our results emphasized that thalamic pathways underlying prefrontal cortex might play a key role in regulating chronic pain and depression of the pathophysiology of LDH.http://dx.doi.org/10.1155/2021/7498714
spellingShingle Hong Li
Qiaoyan Song
Ruya Zhang
Youlong Zhou
Yazhuo Kong
Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
Neural Plasticity
title Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
title_full Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
title_fullStr Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
title_full_unstemmed Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
title_short Enhanced Temporal Coupling between Thalamus and Dorsolateral Prefrontal Cortex Mediates Chronic Low Back Pain and Depression
title_sort enhanced temporal coupling between thalamus and dorsolateral prefrontal cortex mediates chronic low back pain and depression
url http://dx.doi.org/10.1155/2021/7498714
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