Brain Structural Biomarkers of Risk and Resilience to Pain Chronification

疼痛风险和恢复能力的脑结构生物标志物

基本信息

  • 批准号:
    10584169
  • 负责人:
  • 金额:
    $ 47.27万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2022
  • 资助国家:
    美国
  • 起止时间:
    2022-12-01 至 2027-11-30
  • 项目状态:
    未结题

项目摘要

PROJECT SUMMARY Chronic pain is highly prevalent and costly to individuals and society. Once chronic, pain is very hard to treat or reverse making early identification key for prevention and early treatment to improve long-term outcomes. Recent brain imaging data from our lab as well as others have provided evidence that the structural properties of the limbic brain, such as the volume and/or shape of nucleus accumbens (NAc), amygdala, and hippocampus can predict the likelihood of “chronification” of low-back pain after an episode of sub-acute low back pain (SBP) (duration 6-12 weeks). The role of the limbic brain in predicting vulnerability or resilience to chronic pain fits with the general understanding that chronic pain is partly due to an interaction between peripheral nociceptive input and vulnerable limbic brain circuitries, which are known to mediate the negative affective and aversive learning associated with chronic pain. Hence, understanding how the structural properties of the limbic brain circuitries predict risk or resilience to chronic pain in humans is innovative and has high translational significance. However, the brain imaging studies of the transition to chronic pain remain very limited in number and scope and, hence, we still have a poor understanding of the exact limbic circuitry and structural connectivity underlying risk of or resilience to chronic pain. To date, only one small study reported that local white matter properties can predict resilience to pain chronification. Furthermore, no brain imaging study of pain chronification investigated the role of important biological variables like sex or established clinical phenotypes like the presence or absence of a neuropathic component of the low back pain. Therefore, the overarching aim of this proposal is to use state of the art structural mapping techniques to study local anatomical properties (e.g. volume, shape, neurite orientation) and white matter connectivity to identify biomarkers for pain chronification. We will use 2 different approaches, one based on biologically plausible hypotheses, and one based on data driven hypotheses identified in our preliminary data. In addition, the proposal will explore the effect of sex and clinical low-back pain phenotypes on theses biomarkers. We will recruit SBP patients and obtain brain anatomical and multi-shell diffusion weighted imaging data at baseline and at 6 months follow-up. Patients will be classified as recovered or persistent after the follow-up visit. Aim 1 will test baseline local and global gray, white matter differences between recovered and persistent patients in areas of the limbic brains like NAc, amygdala, hippocampus, anterior cingulate cortex, and white matter pathways known for their role in chronic pain (e.g., the cingulum bundle and internal capsule) and assess whether these measures change at follow-up. Aim 2 will use a data- driven approach to examine global and local gray, white matter properties predicting risk or resilience to chronic pain. Finally, aim 3 will explore the effect of sex and presence or absence of radiculopathy symptoms on the biomarkers identified in Aims 1 and 2.
项目总结

项目成果

期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
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Paul Geha其他文献

Paul Geha的其他文献

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{{ truncateString('Paul Geha', 18)}}的其他基金

Brain Mechanisms of Chronic Low-Back Pain: Specificity and Effects of Aging and Sex
慢性腰痛的脑机制:衰老和性别的特异性和影响
  • 批准号:
    10657958
  • 财政年份:
    2023
  • 资助金额:
    $ 47.27万
  • 项目类别:
Quantitative Language and Facial Expression Phenotyping of Chronic Pain
慢性疼痛的定量语言和面部表情表型
  • 批准号:
    10569769
  • 财政年份:
    2022
  • 资助金额:
    $ 47.27万
  • 项目类别:
Quantitative Language and Facial Expression Phenotyping of Chronic Pain
慢性疼痛的定量语言和面部表情表型
  • 批准号:
    10709614
  • 财政年份:
    2022
  • 资助金额:
    $ 47.27万
  • 项目类别:
Cortical Mapping of Neuropathic Low Back Pain
神经性腰痛的皮质映射
  • 批准号:
    10040696
  • 财政年份:
    2020
  • 资助金额:
    $ 47.27万
  • 项目类别:
Cortical Mapping of Neuropathic Low Back Pain
神经性腰痛的皮质映射
  • 批准号:
    10223454
  • 财政年份:
    2020
  • 资助金额:
    $ 47.27万
  • 项目类别:
Neural Mechanism of Obesity in Chronic Low Back Pain
肥胖与慢性腰痛的神经机制
  • 批准号:
    8679716
  • 财政年份:
    2014
  • 资助金额:
    $ 47.27万
  • 项目类别:
Neural Mechanism of Obesity in Chronic Low Back Pain
肥胖与慢性腰痛的神经机制
  • 批准号:
    8843824
  • 财政年份:
    2014
  • 资助金额:
    $ 47.27万
  • 项目类别:
Neural Mechanism of Obesity in Chronic Low Back Pain
肥胖与慢性腰痛的神经机制
  • 批准号:
    9455634
  • 财政年份:
    2014
  • 资助金额:
    $ 47.27万
  • 项目类别:

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