中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (8): 1160-1165.doi: 10.3969/j.issn.2095-4344.3044

• 骨组织构建 bone tissue construction • 上一篇    下一篇

慢性椎间盘源性下腰痛患者脑静息态低频振幅的改变

高  燕1,2,赵力聪3,赵洪增2,朱园园1,李  杰2,桑德恩2   

  1. 1新乡医学院第二附属医院,河南省新乡市   453002;2新乡医学院第二附属医院医学影像科,河南省新乡市   453002;3郑州大学附属儿童医院,河南省郑州市   450018
  • 收稿日期:2020-04-02 修回日期:2020-04-10 接受日期:2020-05-09 出版日期:2021-03-18 发布日期:2020-12-10
  • 通讯作者: 赵洪增,博士,主任医师,新乡医学院第二附属医院医学影像科,河南省新乡市 453002
  • 作者简介:高燕,女,1994年生,河南省南阳市人,汉族,新乡医学院在读硕士,主要从事神经影像学研究。
  • 基金资助:
    河南省医学科技攻关项目资助(201303111);新乡医学院第二附属医院高新人才资助项目(201505)

Alteration of low frequency fluctuation amplitude at brain-resting state in patients with chronic discogenic low back pain

Gao Yan1, 2, Zhao Licong3, Zhao Hongzeng2, Zhu Yuanyuan1, Li Jie2, Sang Deen2   

  1. 1Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453002, Henan Province, China; 2Department of Medical Imaging, Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453002, Henan Province, China; 3Children’s Hospital of Zhengzhou University, Zhengzhou 450018, Henan Province, China
  • Received:2020-04-02 Revised:2020-04-10 Accepted:2020-05-09 Online:2021-03-18 Published:2020-12-10
  • Contact: Zhao Hongzeng, MD, Chief physician, Department of Medical Imaging, Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453002, Henan Province, China
  • About author:Gao Yan, Master candidate, Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453002, Henan Province, China; Department of Medical Imaging, Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453002, Henan Province, China
  • Supported by:
    Henan Provincial Medical Science and Technology Research Project, No. 201303111; the High-tech Talent Project of the Second Affiliated Hospital of Xinxiang Medical University, No. 201505

摘要:

文题释义:
慢性椎间盘源性下腰痛(chronic discogenic low back pain,CDLBP):是指由椎间盘的自身结构病变(如退行性变、终板损伤等)刺激椎间盘内疼痛感受器所引起的腰痛,临床以慢性下腰痛为主要症状,髓核变性、纤维环破裂是本病的主要原因,且多数患者就诊时常伴随焦虑、抑郁等心身疾病症状。
低频振幅(amplitude of low frequency fluctuation,ALFF):是一种静息态功能磁共振数据分析方法,该方法是对全脑的BOLD信号进行傅里叶变换,将频率谱转换为功率谱,数据经处理后即代表该信号振荡的幅度,可反映静息状态下局部神经元自发活动的强弱,与心脏搏动、呼吸运动关系不大,是大脑的内源性神经生理过程。

背景:既往神经影像学研究表明中枢神经系统参与了慢性疼痛的发展、维持和体验,也显示了慢性下腰痛可引起大脑广泛的功能和结构变化。低频振幅值可基于能量角度反映静息状态下局部神经元的自发活动特点。
目的:探讨慢性椎间盘源性下腰痛患者的脑静息态自发神经活动低频振幅改变及其与临床症状的关系。
方法:对67例慢性椎间盘源性下腰痛患者(下腰痛组)及年龄、性别、受教育程度匹配的78例健康志愿者(正常组)行静息态颅脑fMRI扫描,并分析患者的病程、疼痛目测类比评分、Oswestry功能障碍指数(ODI)及抑郁自评量表(SDS)评分。采用DPARSF及REST软件计算两组的平均低频振幅值,以两独立样本t 检验比较两组间低频振幅值的差异,并分析差异脑区的低频振幅均值与病程及临床症状的关系。研究方案已获得新乡医学院第二附属医院医学伦理委员会的审批(伦理批准号20150210)。
结果与结论:①下腰痛组较正常组低频振幅值增高的脑区包括左侧岛叶、右侧海马旁回、双侧颞上回、左侧颞下回、双侧前额叶、左侧尾状核、右侧额下回(均P < 0.05,高斯随机场[GRF]校正);②下腰痛组较正常组低频振幅值减低的脑区包括右侧眶内额上回、右侧舌回(均P < 0.05,GRF校正);③相关性分析显示右侧额下回及左侧尾状核的低频振幅均值与患者的疼痛目测类比评分呈正相关(均P < 0.05);④结果表明,静息状态下慢性椎间盘源性下腰痛患者存在多个脑区的自发神经活动功能异常,并与疼痛程度存在相关性。

https://orcid.org/0000-0002-4235-112X (高燕) 
中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 椎间盘, 下腰痛, 腰椎间盘突出症, 功能磁共振, 低频振幅, 静息态, 疼痛

Abstract: BACKGROUND: Neuroimaging studies have shown that chronic pain could cause functional and structural alterations; however, the neural mechanism of psychosomatic symptoms caused by chronic discogenic low back pain (CDLBP) remains unclear.
OBJECTIVE: To investigate the alterations of amplitude of low frequency fluctuation (ALFF) of resting spontaneous brain activity in CDLBP patients and their relationships with clinical symptoms.
METHODS: Resting-state brain functional MRI scans were performed in 67 CDLBP patients (CDLBP group) and 78 age-, sex- and education level-matched healthy controls (control group). The disease course, Visual Analogue Scale score, Oswestry Disability Index and Self-rating Depression Scale score were analyzed for CDLBP patients. The average ALFF values of the two groups were calculated using DPARSF and REST software, the differences of ALFF values between the two groups were compared by independent two-sample t-test, and the relationships between the ALFF values derived from significant regions and the course of disease and clinical symptoms were analyzed. The study protocol was approved by the Ethics Committee of Second Affiliated Hospital of Xinxiang Medical University (approval No. 20150210).
RESULTS AND CONCLUSION: Compared with the control group, the regions with significantly increased ALFF values in the CDLBP group included the left insular lobe, right parahippocampal gyrus, bilateral superior temporal gyrus, left inferior temporal gyrus, bilateral prefrontal lobe, left caudate nucleus and right inferior frontal gyrus (all P < 0.05, Gaussian random field (GRF) corrected). Compared with the control group, the regions with significantly decreased ALFF values in the CDLBP group included the right superior orbital frontal gyrus and right lingual gyrus (both P < 0.05, GRF corrected). Correlation analysis showed that the mean ALFF values in the right inferior frontal gyrus and left caudate nucleus were positively correlated with the Visual Analogue Scale (all P < 0.05). All these findings suggest that patients with CDLBP have abnormal spontaneous brain activities in multiple brain regions, and these alterations are correlated with the degree of pain.

Key words: intervertebral disc, low back pain, lumbar disc herniation, functional MRI, amplitude of low frequency fluctuation, resting state, pain

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