1
|
Hanycz SA, Noorani A, Hung PSP, Walker MR, Zhang AB, Latypov TH, Hodaie M. Hippocampus diffusivity abnormalities in classical trigeminal neuralgia. Pain Rep 2024; 9:e1159. [PMID: 38655236 PMCID: PMC11037743 DOI: 10.1097/pr9.0000000000001159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 02/16/2024] [Accepted: 02/24/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Patients with chronic pain frequently report cognitive symptoms that affect memory and attention, which are functions attributed to the hippocampus. Trigeminal neuralgia (TN) is a chronic neuropathic pain disorder characterized by paroxysmal attacks of unilateral orofacial pain. Given the stereotypical nature of TN pain and lack of negative symptoms including sensory loss, TN provides a unique model to investigate the hippocampal implications of chronic pain. Recent evidence demonstrated that TN is associated with macrostructural hippocampal abnormalities indicated by reduced subfield volumes; however, there is a paucity in our understanding of hippocampal microstructural abnormalities associated with TN. Objectives To explore diffusivity metrics within the hippocampus, along with its functional and structural subfields, in patients with TN. Methods To examine hippocampal microstructure, we utilized diffusion tensor imaging in 31 patients with TN and 21 controls. T1-weighted magnetic resonance images were segmented into hippocampal subfields and registered into diffusion-weighted imaging space. Fractional anisotropy (FA) and mean diffusivity were extracted for hippocampal subfields and longitudinal axis segmentations. Results Patients with TN demonstrated reduced FA in bilateral whole hippocampi and hippocampal body and contralateral subregions CA2/3 and CA4, indicating microstructural hippocampal abnormalities. Notably, patients with TN showed significant correlation between age and hippocampal FA, while controls did not exhibit this correlation. These effects were driven chiefly by female patients with TN. Conclusion This study demonstrates that TN is associated with microstructural hippocampal abnormalities, which may precede and potentially be temporally linked to volumetric hippocampal alterations demonstrated previously. These findings provide further evidence for the role of the hippocampus in chronic pain and suggest the potential for targeted interventions to mitigate cognitive symptoms in patients with chronic pain.
Collapse
Affiliation(s)
- Shaun Andrew Hanycz
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Alborz Noorani
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Peter Shih-Ping Hung
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Matthew R. Walker
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Ashley B. Zhang
- MD Program, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Timur H. Latypov
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Mojgan Hodaie
- Division of Brain, Imaging, and Behaviour—Systems Neuroscience, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Neurosurgery, Krembil Brain Institute, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| |
Collapse
|
2
|
Chen Z, Tirosh O, Han J, Adams R, El-Ansary D, Pranata A. Lower Limb Proprioception in Low Back Pain and Its Relationship With Voluntary Postural Control. J Mot Behav 2024:1-12. [PMID: 38697938 DOI: 10.1080/00222895.2024.2341712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/08/2024] [Indexed: 05/05/2024]
Abstract
This study aimed to investigate whether patients with low back pain (LBP) had impaired lower limb proprioception and its association with somatosensory acuity. Thirty patients with LBP and 30 asymptomatic people volunteered, using Sway Discrimination Apparatus tests to assess somatosensory acuity during voluntary anteroposterior and mediolateral postural sway. Results showed significantly reduced somatosensory acuity in mediolateral sway in LBP patients (p = 0.005) with ankle, knee, and hip proprioception showing significantly impairment compared to asymptomatic controls (all p ≤ 0.012). Regression analysis showed that ankle and hip proprioception were significantly associated with somatosensory perception (0.001 ≤ p ≤ 0.026, 0.067 ≤ R2≤ 0.235). Overall, findings suggested a global deterioration of lower limb proprioception in LBP patients, with ankle and hip proprioception playing crucial role in somatosensory perception.
Collapse
Affiliation(s)
- Zhengquan Chen
- Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Department of Nursing and Allied Health, School of Health Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Oren Tirosh
- Department of Nursing and Allied Health, School of Health Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
- College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Jia Han
- Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Department of Nursing and Allied Health, School of Health Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
- College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Roger Adams
- College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Doa El-Ansary
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
- College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China
- Department of Surgery, Melbourne Medical School, Melbourne, VIC, Australia
| | - Adrian Pranata
- Department of Nursing and Allied Health, School of Health Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
- College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC, Australia
| |
Collapse
|
3
|
Ogden R, Moore D, Piovesan A, Poole H. Distortions to the passage of time during chronic pain: A mixed method study. Eur J Pain 2024; 28:705-718. [PMID: 38032340 DOI: 10.1002/ejp.2211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/03/2023] [Accepted: 11/11/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND A core aspect of the clinical assessment of pain is establishing how long pain has been present for. The reported length of pain can therefore influence diagnosis and treatment. Despite this, little is known about how chronic pain affects the passage of time. METHODS A mixed-methods cross-sectional study examined experiences of the passage of time in people identifying as living with chronic pain (n = 398). RESULTS Experiencing chronic pain slows the passage of time for most people. Greater pain intensity, rumination about pain, helplessness and identifying as disabled were associated with a greater slowing of the passage of time. Thematic analysis of responses to open-ended questions suggested that a slowing of time during pain was associated with (1) pain intrusion preventing activities which would otherwise enable time to pass quickly, (2) increased attention to time and (3) as sense that in retrospect, time throughout life was 'lost' to chronic pain. CONCLUSION Chronic pain causes widespread distortion to the passage of time. The slowing of time during pain means that periods of pain feel subjectively longer than periods without, exacerbating patient distress. SIGNIFICANCE This study examined how chronic pain impacts on the experience of time. Chronic pain substantially slowed the passage of time for most people, subjectively lengthening the period of time that pain lasted for, exacerbating distress. Given the importance of time processing in clinical assessments of pain, medication adherence and therapeutic interventions, these findings underscore the importance of raising awareness about altered temporal processing in patients and clinicians.
Collapse
Affiliation(s)
- Ruth Ogden
- School of Psychology, Liverpool John Moores University, Liverpool, UK
| | - David Moore
- School of Psychology, Liverpool John Moores University, Liverpool, UK
| | | | - Helen Poole
- School of Psychology, Liverpool John Moores University, Liverpool, UK
| |
Collapse
|
4
|
Lorimer Moseley G, Leake HB, Beetsma AJ, Watson JA, Butler DS, van der Mee A, Stinson JN, Harvie D, Palermo TM, Meeus M, Ryan CG. Teaching Patients About Pain: The Emergence of Pain Science Education, its Learning Frameworks and Delivery Strategies. J Pain 2024; 25:104425. [PMID: 37984510 DOI: 10.1016/j.jpain.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Since it emerged in the early 2000's, intensive education about 'how pain works', widely known as pain neuroscience education or explaining pain, has evolved into a new educational approach, with new content and new strategies. The substantial differences from the original have led the PETAL collaboration to call the current iteration 'Pain Science Education'. This review presents a brief historical context for Pain Science Education, the clinical trials, consumer perspective, and real-world clinical data that have pushed the field to update both content and method. We describe the key role of educational psychology in driving this change, the central role of constructivism, and the constructivist learning frameworks around which Pain Science Education is now planned and delivered. We integrate terminology and concepts from the learning frameworks currently being used across the PETAL collaboration in both research and practice-the Interactive, Constructive, Active, Passive framework, transformative learning theory, and dynamic model of conceptual change. We then discuss strategies that are being used to enhance learning within clinical encounters, which focus on the skill, will, and thrill of learning. Finally, we provide practical examples of these strategies so as to assist the reader to drive their own patient pain education offerings towards more effective learning. PERSPECTIVE: Rapid progress in several fields and research groups has led to the emergence 'Pain Science Education'. This PETAL review describes challenges that have spurred the field forward, the learning frameworks and educational strategies that are addressing those challenges, and some easy wins to implement and mistakes to avoid.
Collapse
Affiliation(s)
- G Lorimer Moseley
- The Pain Education Team to Advance Learning (PETAL) Collaboration; IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Kaurna Country, Adelaide, Australia.
| | - Hayley B Leake
- The Pain Education Team to Advance Learning (PETAL) Collaboration; IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Kaurna Country, Adelaide, Australia
| | - Anneke J Beetsma
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Research group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences Groningen, the Netherlands
| | - James A Watson
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Centre for Rehabilitation, School of Health and Life Sciences, Teesside University, Middlesbrough, UK; Integrated Musculoskeletal Service, Community Pain Management, North Tees and Hartlepool NHS Foundation Trust, Stockton-on-Tees, UK
| | - David S Butler
- The Pain Education Team to Advance Learning (PETAL) Collaboration; IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Kaurna Country, Adelaide, Australia
| | - Annika van der Mee
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Consumer Representative, Research group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences Groningen, the Netherlands
| | - Jennifer N Stinson
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Child Health Evaluative Sciences, The Research Institute, The Hospital for Sick Children and Lawrence S. Bloomberg, Faculty of Nursing, The University of Toronto, Toronto, Ontario, Canada
| | - Daniel Harvie
- The Pain Education Team to Advance Learning (PETAL) Collaboration; IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Kaurna Country, Adelaide, Australia
| | - Tonya M Palermo
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, Washington
| | - Mira Meeus
- The Pain Education Team to Advance Learning (PETAL) Collaboration; MOVANT research group, Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Belgium
| | - Cormac G Ryan
- The Pain Education Team to Advance Learning (PETAL) Collaboration; Centre for Rehabilitation, School of Health and Life Sciences, Teesside University, Middlesbrough, UK
| |
Collapse
|
5
|
Caldichoury A, Garcia-Larrea L, Frot M. Focal changes in alpha oscillations during short-term memorization of pain: a high-density electroencephalogram study with source localization. Eur J Neurosci 2024. [PMID: 38511229 DOI: 10.1111/ejn.16317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/22/2024]
Abstract
Memories of painful events constitute the basis for assessing patients' pain. This study explores the brain oscillatory activity during short-term memorization of a nociceptive stimulus. High-density EEG activity (128 electrodes) was recorded in 13 healthy subjects during a match-to-sample sensory discrimination task, whereby participants compared the intensity of a thumb-located electric shock (S2) with a prior stimulus to the same location (S1) delivered 8-10 s earlier. Stimuli were above or below the individual nociceptive threshold. EEG activity with intracortical source localization via LORETA source reconstruction was analysed during the inter-stimuli period and contrasted with a non-memory-related control task. The inter-stimulus memorization phase was characterized by a focal alpha-activity enhancement, significant during the nociceptive condition only, which progressed from bilateral occipital regions (cuneus and mid-occipital gyri) during the first encoding-memorization phase towards the right-superior and right mid-temporal gyri during the 2-4 s immediately preceding S2. Initial alpha enhancement in occipital areas/cuneus is consistent with rapid non-specific inhibition of task-irrelevant visual processing during initial stimulus encoding. Its transfer to the right-temporal regions was concomitant to the temporary upholding of the stimulus perceptual representation, previous to receiving S2, and suggests an active and local blockade of external interferences while these regions actively maintain internal information. These results add to a growing field indicating that alpha oscillations, while indicating local inhibitory processes, can also indirectly reveal active stimulus handling, including maintenance in short-term memory buffers, by objectivizing the filtering out of irrelevant and potentially disrupting inputs in brain regions engaged in internally driven operations.
Collapse
Affiliation(s)
- Argitxu Caldichoury
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron, France
| | - Luis Garcia-Larrea
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron, France
- Centre d'Evaluation et de Traitement de la Douleur, Hôpital Neurologique, Lyon, France
| | - Maud Frot
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron, France
| |
Collapse
|
6
|
Smith M, Murrell JC, Mendl M. Spatial working memory in a disappearing object task is impaired in female but not male dogs with chronic osteoarthritis. Anim Cogn 2024; 27:13. [PMID: 38429533 PMCID: PMC10907419 DOI: 10.1007/s10071-024-01845-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/31/2023] [Accepted: 11/18/2023] [Indexed: 03/03/2024]
Abstract
Chronic pain in humans is associated with impaired working memory but it is not known whether this is the case in long-lived companion animals, such as dogs, who are especially vulnerable to developing age-related chronic pain conditions. Pain-related impairment of cognitive function could have detrimental effects on an animal's ability to engage with its owners and environment or to respond to training or novel situations, which may in turn affect its quality of life. This study compared the performance of 20 dogs with chronic pain from osteoarthritis and 21 healthy control dogs in a disappearing object task of spatial working memory. Female neutered osteoarthritic dogs, but not male neutered osteoarthritic dogs, were found to have lower predicted probabilities of successfully performing the task compared to control dogs of the same sex. In addition, as memory retention interval in the task increased, osteoarthritic dogs showed a steeper decline in working memory performance than control dogs. This suggests that the effects of osteoarthritis, and potentially other pain-related conditions, on cognitive function are more clearly revealed in tasks that present a greater cognitive load. Our finding that chronic pain from osteoarthritis may be associated with impaired working memory in dogs parallels results from studies of human chronic pain disorders. That female dogs may be particularly prone to these effects warrants further investigation.
Collapse
Affiliation(s)
- Melissa Smith
- Bristol Veterinary School, University of Bristol, Langford House, Langford, BS40 5DU, UK
| | - Joanna C Murrell
- Bristol Veterinary School, University of Bristol, Langford House, Langford, BS40 5DU, UK
- Highcroft Veterinary Referrals, 615 Wells Rd, Whitchurch, Bristol, BS14 9BE, UK
| | - Michael Mendl
- Bristol Veterinary School, University of Bristol, Langford House, Langford, BS40 5DU, UK.
| |
Collapse
|
7
|
Tawfik VL. Astrocytes: Dual Roles in Chronic Pain and Memory Formation. Anesthesiology 2024; 140:358-360. [PMID: 38349757 DOI: 10.1097/aln.0000000000004832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Affiliation(s)
- Vivianne L Tawfik
- Department of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, Stanford, California
| |
Collapse
|
8
|
Sun HL, Bai W, Chen P, Zhang L, Smith RD, Su Z, Cheung T, Ungvari GS, Ng CH, Zhang Q, Xiang YT. Pain trajectories and their associations with cognition among older adults: a 10-year cohort study from network perspective. Age Ageing 2024; 53:afae054. [PMID: 38521972 PMCID: PMC10960922 DOI: 10.1093/ageing/afae054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Few studies have examined the associations between pain trajectories and cognitive function in older adults. This study explored the associations between pain trajectories and different cognitive domains in older adults from a network perspective. METHODS Data on pain trajectories were derived from the Health and Retirement Study between 2010 and 2020 using latent class growth analyses. Measurements of key cognition domains, including memory, attention, calculation, orientation and language, were included. Linear regression and network analysis were performed to evaluate the associations between different pain trajectories and cognition. RESULTS A total of 9,551 older adults were included in this study and three trajectories of pain were identified. After controlling for the covariates, persistent severe pain trajectory was associated with poorer overall cognition, memory and calculation ability when compared to mild or non-persistent pain trajectory. In the pain and cognition network model, memory (expected influence (EI) = 0.62), language (EI = 0.58) and calculation (EI = 0.41) were the most central domains. CONCLUSIONS Pain trajectories appeared stable over time among older adults in this study. Severity of persistent pain was an important risk factor for poor cognition, especially in relation to memory and calculation domains. Interventions targeting memory, language and calculation domains might be useful in addressing cognitive decline in older adults with persistent pain.
Collapse
Affiliation(s)
- He-Li Sun
- Unit of Psychiatry, Department of Public Health and Medicinal Administration, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SAR, China
- Centre for Cognitive and Brain Sciences, University of Macau, Macao SAR, China
| | - Wei Bai
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Pan Chen
- Unit of Psychiatry, Department of Public Health and Medicinal Administration, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SAR, China
- Centre for Cognitive and Brain Sciences, University of Macau, Macao SAR, China
| | - Ling Zhang
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders and National Center for Mental Disorders, Beijing Anding Hospital; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Robert D Smith
- Unit of Psychiatry, Department of Public Health and Medicinal Administration, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Zhaohui Su
- School of Public Health, Southeast University, Nanjing, China
| | - Teris Cheung
- School of Nursing, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Gabor S Ungvari
- Section of Psychiatry, University of Notre Dame Australia, Fremantle, Australia
- Division of Psychiatry, School of Medicine, University of Western Australia, Perth, Australia
| | - Chee H Ng
- Department of Psychiatry, The Melbourne Clinic and St Vincent’s Hospital, University of Melbourne, Richmond, Victoria, Australia
| | - Qinge Zhang
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders and National Center for Mental Disorders, Beijing Anding Hospital; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Yu-Tao Xiang
- Unit of Psychiatry, Department of Public Health and Medicinal Administration, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SAR, China
- Centre for Cognitive and Brain Sciences, University of Macau, Macao SAR, China
| |
Collapse
|
9
|
Fradera A, McLaren J, Gadon L, Cullen B, Evans J. Does the presence of chronic pain affect scores on cognitive screening tests/brief cognitive measures for dementia? A systematic review and meta-analysis. Clin Neuropsychol 2024:1-24. [PMID: 38369508 DOI: 10.1080/13854046.2024.2315739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/27/2023] [Indexed: 02/20/2024]
Abstract
OBJECTIVE Cognitive screening tests can identify potential dementia by indicating a concerning level of cognitive impairment. The older populations for whom this is most relevant are more likely to experience chronic pain, which also impairs cognitive function, but pain's impact on cognitive screening tests specifically remains unknown. METHOD We conducted a systematic review and meta-analysis (SR/MA) following PRISMA guidelines evaluating cognitive screening scores in studies involving participants with chronic pain compared with a pain-free control group. Our question was whether the presence of chronic pain (self-reported or based on diagnosis) was associated with poorer performance on these screens, and to identify the heterogeneity across groups and screens. RESULTS The 51 studies identified yielded 62 effect size estimates. The pooled g was 0.76 (95% confidence interval 0.57 to 0.95). Heterogeneity was high for the full model (= 93.16%) with some reductions in sub-analyses. Around half of the studies were identified as being at a low risk of bias. There was no evidence of publication bias. CONCLUSIONS As a whole, this analysis suggests medium to large effect sizes on cognitive screen performance when people are living with chronic pain. We suggest that clinicians should consider the effect of chronic pain when cognitive screens are employed to investigate dementia. Further research could clarify the effect pain has on different screen sub-domains to aid their effective use with these populations.
Collapse
Affiliation(s)
- Alex Fradera
- School of Health & Wellbeing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - Lisa Gadon
- NHS Greater Glasgow and Clyde, Glasgow, UK
| | - Breda Cullen
- School of Health & Wellbeing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jonathan Evans
- School of Health & Wellbeing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| |
Collapse
|
10
|
Butera KA, Chimenti RL, Alsouhibani AM, Berardi G, Booker SQ, Knox PJ, Post AA, Merriwether EN, Wilson AT, Simon CB. Through the Lens of Movement-Evoked Pain: A Theoretical Framework of the "Pain-Movement Interface" to Guide Research and Clinical Care for Musculoskeletal Pain Conditions. J Pain 2024:S1526-5900(24)00366-3. [PMID: 38316243 DOI: 10.1016/j.jpain.2024.01.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/05/2024] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
Over 120 million Americans report experiencing pain in the past 3 months. Among these individuals, 50 million report chronic pain and 17 million report pain that limits daily life or work activities on most days (ie, high-impact chronic pain). Musculoskeletal pain conditions in particular are a major contributor to global disability, health care costs, and poor quality of life. Movement-evoked pain (MEP) is an important and distinct component of the musculoskeletal pain experience and represents an emerging area of study in pain and rehabilitation fields. This focus article proposes the "Pain-Movement Interface" as a theoretical framework of MEP that highlights the interface between MEP, pain interference, and activity engagement. The goal of the framework is to expand knowledge about MEP by guiding scientific inquiry into MEP-specific pathways to disability, high-risk clinical phenotypes, and underlying individual influences that may serve as treatment targets. This framework reinforces the dynamic nature of MEP within the context of activity engagement, participation in life and social roles, and the broader pain experience. Recommendations for MEP evaluation, encompassing the spectrum from high standardization to high patient specificity, and MEP-targeted treatments are provided. Overall, the proposed framework and recommendations reflect the current state of science in this emerging area of study and are intended to support future efforts to optimize musculoskeletal pain management and enhance patient outcomes. PERSPECTIVE: Movement-evoked pain (MEP) is a distinct component of the musculoskeletal pain experience and emerging research area. This article introduces the "Pain-Movement Interface" as a theoretical framework of MEP, highlighting the interface between MEP, pain interference, and activity engagement. Evaluating and treating MEP could improve rehabilitation approaches and enhance patient outcomes.
Collapse
Affiliation(s)
- Katie A Butera
- Department of Physical Therapy, University of Delaware, Newark, Delaware
| | - Ruth L Chimenti
- Department of Physical Therapy & Rehabilitation Science, University of Iowa, Iowa City, Iowa
| | - Ali M Alsouhibani
- Department of Physical Therapy, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Giovanni Berardi
- Department of Physical Therapy & Rehabilitation Science, University of Iowa, Iowa City, Iowa
| | - Staja Q Booker
- Department of Biobehavioral Nursing Science, University of Florida, Gainesville, Florida
| | - Patrick J Knox
- Department of Physical Therapy, University of Delaware, Newark, Delaware
| | - Andrew A Post
- Department of Physical Therapy & Rehabilitation Science, University of Iowa, Iowa City, Iowa
| | - Ericka N Merriwether
- Department of Physical Therapy, NYU Steinhardt School of Culture, Education, and Human Development, Department of Medicine, NYU Grossman School of Medicine, New York University, New York, New York
| | - Abigail T Wilson
- Division of Physical Therapy, School of Kinesiology & Rehabilitation Sciences, University of Central Florida, Orlando, Florida
| | - Corey B Simon
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina; Duke Clinical Research Institute, Durham, North Carolina
| |
Collapse
|
11
|
Liu Y, Liu Q, Wang H, Qiu Y, Lin J, Wu W, Wang N, Dong W, Wan J, Chen C, Li S, Zheng H, Wu Y. Hippocampal synaptic plasticity injury mediated by SIRT1 downregulation is involved in chronic pain-related cognitive dysfunction. CNS Neurosci Ther 2024; 30:e14410. [PMID: 37592394 PMCID: PMC10848102 DOI: 10.1111/cns.14410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/19/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
AIMS Cognitive dysfunction associated with chronic pain may be caused by impaired synaptic plasticity. Considering the impact of silent information regulator 1 (SIRT1) on synaptic plasticity, we explored the exact role of SIRT1 in cognitive impairment caused by chronic pain. METHODS We evaluated the memory ability of mice with the fear conditioning test (FCT) after spared nerve injury (SNI) model. Western blotting and immunofluorescence were used to analyze the expression levels of SIRT1. Hippocampal synaptic plasticity was detected with Golgi staining, transmission electron microscopy, and long-term potentiation (LTP). In the intervention study, AAV9-CaMKIIα-Cre-EGFP was injected to SIRT1flox/flox mice to knockdown the expression levels of SIRT1. Besides, SNI mice were injected with AAV2/9-CaMKIIα-SIRT1-3*Flag-GFP or SRT1720 to increase the expression levels or enzymatic activity of SIRT1. RESULTS Our current results indicated that cognitive function in SNI mice was impaired, SIRT1 expression in glutaminergic neurons in the hippocampal CA1 area was downregulated, and synaptic plasticity was altered. Selective knockdown of SIRT1 in hippocampus damaged synaptic plasticity and cognitive function of healthy mice. In addition, the impaired synaptic plasticity and cognitive dysfunction of SNI mice could be improved by the upregulation of SIRT1 expression or enzyme activity. CONCLUSIONS Reduced SIRT1 expression in hippocampus of SNI mice may induce cognitive impairment associated with chronic pain by mediating the impaired synaptic plasticity.
Collapse
Affiliation(s)
- Yanping Liu
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Qiang Liu
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Haibi Wang
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Yongkang Qiu
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Jiatao Lin
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Weifeng Wu
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Ning Wang
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Wei Dong
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Jie Wan
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Chen Chen
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Shuai Li
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Hui Zheng
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Yuqing Wu
- Jiangsu Province Key Laboratory of Anesthesiology/NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| |
Collapse
|
12
|
Zhao Q, Wan H, Pan H, Xu Y. Postoperative cognitive dysfunction-current research progress. Front Behav Neurosci 2024; 18:1328790. [PMID: 38357422 PMCID: PMC10865506 DOI: 10.3389/fnbeh.2024.1328790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Postoperative cognitive dysfunction (POCD) commonly occurs after surgery, particularly in elderly individuals. It is characterized by a notable decline in cognitive performance, encompassing memory, attention, coordination, orientation, verbal fluency, and executive function. This reduction in cognitive abilities contributes to extended hospital stays and heightened mortality. The prevalence of POCD can reach 40% within 1 week following cardiovascular surgery and remains as high as 17% 3 months post-surgery. Furthermore, POCD exacerbates the long-term risk of Alzheimer's disease (AD). As a result, numerous studies have been conducted to investigate the molecular mechanisms underlying POCD and potential preventive strategies. This article provides a review of the research progress on POCD.
Collapse
Affiliation(s)
| | | | - Hui Pan
- Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yiquan Xu
- Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| |
Collapse
|
13
|
Natsi A, Valkanou M, Anousi E, Labrakakis C. Differential behavioral response to predator odor in neuropathic pain in mice. Front Pain Res (Lausanne) 2024; 4:1283550. [PMID: 38259981 PMCID: PMC10800923 DOI: 10.3389/fpain.2023.1283550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/14/2023] [Indexed: 01/24/2024] Open
Abstract
Neuropathic pain, a type of chronic pain caused by injury or disease of the somatosensory system, affects ∼10% of the general population and is difficult to treat. It is strongly associated with mood disorder comorbidities and impairs quality of life. It was recently suggested that hypervigilance caused by chronic pain might be of advantage in some species, helping them avoid predators during injury when they are most vulnerable. Here, we sought to confirm the hypervigilance hypothesis by using two predator odor (PO) paradigms, one with transient and one with continuous odor presentation. We observed behavioral responses to PO in neuropathic and control mice in an open field setting. We find that neuropathic mice show hypervigilance to PO, confirming previous results. However, we also find increased anxiety responses to neutral odor in neuropathic mice, which manifests as maladaptive pain. This demonstrates that this maladaptive nature of pain could be an evolutionary adaptation aimed at reducing injury-induced vulnerability.
Collapse
Affiliation(s)
- Amalia Natsi
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Mary Valkanou
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
- Athens International Master's Programme in Neurosciences, Department of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Elissavet Anousi
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Charalampos Labrakakis
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
- Institute of Biosciences, University Research Center of Ioannina (URCI), Ioannina, Greece
| |
Collapse
|
14
|
Bell TR, Franz CE, Eyler LT, Fennema-Notestine C, Puckett OK, Dorros SM, Panizzon MS, Pearce RC, Hagler DJ, Lyons MJ, Beck A, Elman JA, Kremen WS. Probable chronic pain, brain structure, and Alzheimer's plasma biomarkers in older men. J Pain 2024:S1526-5900(24)00014-2. [PMID: 38199594 DOI: 10.1016/j.jpain.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/06/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Chronic pain leads to tau accumulation and hippocampal atrophy in mice. In this study, we provide one of the first assessments in humans, examining the associations of probable chronic pain with hippocampal volume, integrity of the locus coeruleus (LC)-an upstream site of tau deposition-and Alzheimer's Disease-related plasma biomarkers. Participants were mostly cognitively unimpaired men. Probable chronic pain was defined as moderate-to-severe pain in 2+ study waves at average ages 56, 62, and 68. At age 68, 424 participants underwent structural magnestic resonance imaging (MRI) of hippocampal volume and LC-sensitive MRI providing an index of LC integrity (LC contrast-to-noise ratio). Analyses adjusted for confounders including major health conditions, depressive symptoms, and opioid use. Models showed that men with probable chronic pain had smaller hippocampal volume and lower rostral-middle-but not caudal-LC contrast-to-noise ratio compared to men without probable chronic pain. Men with probable chronic pain also had higher levels of plasma total tau, beta-amyloid-42, and beta-amyloid-40 compared to men without probable chronic pain. These findings suggest that probable chronic pain is associated with tau accumulation and reduced structural brain integrity in regions affected early in the development of Alzheimer's Disease. PERSPECTIVE: Probable chronic pain was associated with plasma biomarkers and brain regions that are affected early in Alzheimer's disease (AD). Reducing pain in midlife and elucidating biological mechanisms may help to reduce the risk of AD in older adults.
Collapse
Affiliation(s)
- Tyler R Bell
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - Carol E Franz
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - Lisa T Eyler
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California
| | - Christine Fennema-Notestine
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California; Department of Radiology, University of California San Diego, San Diego, La Jolla, California
| | - Olivia K Puckett
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - Stephen M Dorros
- Department of Radiology, University of California San Diego, San Diego, La Jolla, California
| | - Matthew S Panizzon
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - Rahul C Pearce
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - Donald J Hagler
- Department of Radiology, University of California San Diego, San Diego, La Jolla, California; Center for Multimodal Imaging and Genetics, University of California, San Diego, La Jolla, California
| | - Michael J Lyons
- Department of Psychology, Boston University, Boston, Massachusetts
| | - Asad Beck
- Graduate Program in Neuroscience, University of Washington, Seattle, Washington
| | - Jeremy A Elman
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| | - William S Kremen
- Department of Psychiatry, University of California San Diego, San Diego, La Jolla, California; Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, California
| |
Collapse
|
15
|
Zhu TT, Wang H, Liu PM, Gu HW, Pan WT, Zhao MM, Hashimoto K, Yang JJ. Clemastine-induced enhancement of hippocampal myelination alleviates memory impairment in mice with chronic pain. Neurobiol Dis 2024; 190:106375. [PMID: 38092269 DOI: 10.1016/j.nbd.2023.106375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/06/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023] Open
Abstract
Patients with chronic pain often experience memory impairment, but the underlying mechanisms remain elusive. The myelin sheath is crucial for rapid and accurate action potential conduction, playing a pivotal role in the development of cognitive abilities in the central nervous system. The study reveals that myelin degradation occurs in the hippocampus of chronic constriction injury (CCI) mice, which display both chronic pain and memory impairment. Using fiber photometry, we observed diminished task-related neuronal activity in the hippocampus of CCI mice. Interestingly, the repeated administration with clemastine, which promotes myelination, counteracts the CCI-induced myelin loss and reduced neuronal activity. Notably, clemastine specifically ameliorates the impaired memory without affecting chronic pain in CCI mice. Overall, our findings highlight the significant role of myelin abnormalities in CCI-induced memory impairment, suggesting a potential therapeutic approach for treating memory impairments associated with neuropathic pain.
Collapse
Affiliation(s)
- Ting-Ting Zhu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Neuroscience Research Institute, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - He Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Pan-Miao Liu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Neuroscience Research Institute, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Han-Wen Gu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Wei-Tong Pan
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Neuroscience Research Institute, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Ming-Ming Zhao
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Kenji Hashimoto
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan.
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Neuroscience Research Institute, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China.
| |
Collapse
|
16
|
Jiang Y, Wang X, Chen J, Zhang Y, Hashimoto K, Yang JJ, Zhou Z. Repeated ( S)-ketamine administration ameliorates the spatial working memory impairment in mice with chronic pain: role of the gut microbiota-brain axis. Gut Microbes 2024; 16:2310603. [PMID: 38332676 PMCID: PMC10860353 DOI: 10.1080/19490976.2024.2310603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 01/23/2024] [Indexed: 02/10/2024] Open
Abstract
Chronic pain is commonly linked with diminished working memory. This study explores the impact of the anesthetic (S)-ketamine on spatial working memory in a chronic constriction injury (CCI) mouse model, focusing on gut microbiome. We found that multiple doses of (S)-ketamine, unlike a single dose, counteracted the reduced spontaneous alteration percentage (%SA) in the Y-maze spatial working memory test, without affecting mechanical or thermal pain sensitivity. Additionally, repeated (S)-ketamine treatments improved the abnormal composition of the gut microbiome (β-diversity), as indicated by fecal 16S rRNA analysis, and increased levels of butyrate, a key gut - brain axis mediator. Protein analysis showed that these treatments also corrected the upregulated histone deacetylase 2 (HDAC2) and downregulated brain-derived neurotrophic factor (BDNF) in the hippocampi of CCI mice. Remarkably, fecal microbiota transplantation from mice treated repeatedly with (S)-ketamine to CCI mice restored %SA and hippocampal BDNF levels in CCI mice. Butyrate supplementation alone also improved %SA, BDNF, and HDAC2 levels in CCI mice. Furthermore, the TrkB receptor antagonist ANA-12 negated the beneficial effects of repeated (S)-ketamine on spatial working memory impairment in CCI mice. These results indicate that repeated (S)-ketamine administration ameliorates spatial working memory impairment in CCI mice, mediated by a gut microbiota - brain axis, primarily through the enhancement of hippocampal BDNF - TrkB signaling by butyrate.
Collapse
Affiliation(s)
- Yubin Jiang
- Department of Anesthesiology, Nanjing Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xingming Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiawei Chen
- Department of Anesthesiology, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Yibao Zhang
- Department of Anesthesiology, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhiqiang Zhou
- Department of Anesthesiology, Nanjing Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| |
Collapse
|
17
|
LaRowe LR, Miaskowski C, Miller A, Mayfield A, Keefe FJ, Smith AK, Cooper BA, Wei LJ, Ritchie CS. Chronic Pain and Pain Management in Older Adults: Protocol and Pilot Results. Nurs Res 2024; 73:81-88. [PMID: 37582291 PMCID: PMC10829063 DOI: 10.1097/nnr.0000000000000683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
BACKGROUND Chronic pain occurs in 30% of older adults. This prevalence rate is expected to increase, given the growth in the older adult population and the associated growth of chronic conditions contributing to pain. No population-based studies have provided detailed, longitudinal information on the experience of chronic pain in older adults; the pharmacological and nonpharmacological strategies that older adults use to manage their chronic pain; and the effect of chronic pain on patient-reported outcomes. OBJECTIVES This article aims to describe the protocol for a population-based, longitudinal study focused on understanding the experience of chronic pain in older adults. The objectives are to determine the prevalence and characteristics of chronic pain; identify the pharmacological and nonpharmacological pain treatments used; evaluate for longitudinal differences in biopsychosocial factors; and examine how pain types and pain trajectories affect important patient-reported outcomes. Also included are the results of a pilot study. METHODS A population-based sample of approximately 1,888 older adults will be recruited from the National Opinion Research Center at the University of Chicago's AmeriSpeak Panel to complete surveys at three waves: enrollment (Wave 1), 6 months (Wave 2), and 12 months (Wave 3). To determine the feasibility, a pilot test of the enrollment survey was conducted among 123 older adults. RESULTS In the pilot study, older adults with chronic pain reported a range of pain conditions, with osteoarthritis being the most common. Participants reported an array of pharmacological and nonpharmacological pain strategies. Compared to participants without chronic pain, those with chronic pain reported lower physical and cognitive function and poorer quality of life. Data collection for the primary, longitudinal study is ongoing. DISCUSSION This project will be the first longitudinal population-based study to examine the experience and overall effect of chronic pain in older adults. Pilot study results provide evidence of the feasibility of study methods. Ultimately, this work will inform the development of tailored interventions for older patients targeted to decrease pain and improve function and quality of life.
Collapse
Affiliation(s)
- Lisa R. LaRowe
- Division of Palliative Care and Geriatric Medicine, Massachusetts General Hospital, Boston, MA
| | | | - Angela Miller
- Division of Palliative Care and Geriatric Medicine, Massachusetts General Hospital, Boston, MA
| | | | - Francis J. Keefe
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Durham, NC
| | - Alexander K. Smith
- Division of Geriatrics, University of California, San Francisco, San Francisco, CA
- San Francisco VA Medical Center, San Francisco, CA
| | - Bruce A. Cooper
- Division of Palliative Care and Geriatric Medicine, Massachusetts General Hospital, Boston, MA
| | - Lee-Jen Wei
- Harvard T.H. Chan School of Public Health, Boston, MA
| | - Christine S. Ritchie
- Division of Palliative Care and Geriatric Medicine, Massachusetts General Hospital, Boston, MA
| |
Collapse
|
18
|
Melum TA, Steingrímsdóttir ÓA, Jacobsen HB, Johnsen B, Stubhaug A, Schirmer H, Mathiesen EB, Nielsen CS. Associations between cognitive test scores and pain tolerance: The Tromsø study. Scand J Pain 2024; 24:sjpain-2023-0082. [PMID: 38495000 DOI: 10.1515/sjpain-2023-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 01/16/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVES Previous studies have suggested that experimental pain sensitivity is associated with cognitive function. The aim of this study is to assess this relationship in a large population-based sample. METHODS We included 5,753 participants (aged 40-84 years) from the seventh wave of the population-based Tromsø Study who had been examined with cognitive tests and experimental pain assessments, and for whom information on covariates were available. Cox regression models were fitted using standardized scores on cognitive tests (12-word immediate recall test, digit symbol coding test, and Mini-Mental State Examination [MMS-E]) as the independent variable and cold pressor or cuff pressure pain tolerance as the dependent variables. Statistical adjustment was made for putative confounders, namely, age, sex, education, smoking, exercise, systolic blood pressure, body mass index, symptoms indicating anxiety or depression, analgesic use, and chronic pain. RESULTS In multivariate analysis, cold pressor tolerance time was significantly associated with test scores on the 12-word immediate recall test (hazard ratio [HR] 0.93, 95% confidence interval [CI] 0.90-0.97, p < 0.001), the digit symbol coding test (HR 0.94, 95% CI 0.89-0.98, p = 0.004), and the MMS-E (HR 0.93, 95% CI 0.90-0.96 p < 0.001). Tolerance to cuff pressure algometry was significantly associated with 12-word immediate recall (HR 0.94-0.97, p < 0.001) and Digit Symbol Coding test scores (HR 0.93, 95% CI 0.89-0.96, p < 0.001) while there was no significant association with Mini Mental State Examination test score (HR 0.98, 95% CI 0.95-1.00, p = 0.082). CONCLUSION Lower pain tolerance was associated with poorer performance on cognitive tests.
Collapse
Affiliation(s)
- Tonje Anita Melum
- Department of Neurology, University Hospital of Northern Norway, Tromsø, Norway
- Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
- Pain Clinic, University Hospital of Northern Norway, Postbox 100, 9038, Tromsø, Norway
| | - Ólöf A Steingrímsdóttir
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Research, Oral Health Centre of Expertise in Eastern Norway, Oslo, Norway
| | - Henrik B Jacobsen
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
- The Mind Body Lab, Department of Psychology, Faculty of Social Sciences, University of Oslo, Oslo, Norway
| | - Bente Johnsen
- Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
- Department of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Audun Stubhaug
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Henrik Schirmer
- Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Akershus University Hospital, Lørenskog, Norway
| | - Ellisiv B Mathiesen
- Department of Neurology, University Hospital of Northern Norway, Tromsø, Norway
- Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Christopher S Nielsen
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
19
|
Vandael K, Vervliet B, Peters M, Meulders A. Excessive generalization of pain-related avoidance behavior: mechanisms, targets for intervention, and future directions. Pain 2023; 164:2405-2410. [PMID: 37498749 PMCID: PMC10578424 DOI: 10.1097/j.pain.0000000000002990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 05/22/2023] [Accepted: 05/26/2023] [Indexed: 07/29/2023]
Affiliation(s)
- Kristof Vandael
- Experimental Health Psychology, Maastricht University, Maastricht, the Netherlands
- Laboratory of Biological Psychology, KU Leuven, Leuven, Belgium
| | - Bram Vervliet
- Laboratory of Biological Psychology, KU Leuven, Leuven, Belgium
| | - Madelon Peters
- Experimental Health Psychology, Maastricht University, Maastricht, the Netherlands
| | - Ann Meulders
- Experimental Health Psychology, Maastricht University, Maastricht, the Netherlands
- Research Group Health Psychology, KU Leuven, Leuven, Belgium
| |
Collapse
|
20
|
Stolz R, Krause O, Junius-Walker U, Thürmann P, Fuchs A, Wilm S, Wollny A, Rebentisch F, Wiese B, Joos S, Haumann H. The role of qualification and quality management in the prescription of antipsychotics and potentially inappropriate medication (PIM) in nursing home residents in Germany: results of the HIOPP-3-iTBX study. Aging Clin Exp Res 2023; 35:2227-2235. [PMID: 37550560 PMCID: PMC10520111 DOI: 10.1007/s40520-023-02513-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/19/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND Nursing home residents (NHR) show high rates of polypharmacy. The HIOPP-3-iTBX study is the first cRCT on medication optimization in nursing homes (NH) in Germany. The intervention did not result in a reduction of PIM and/or antipsychotics. This analysis looks at structure quality in the HIOPP-3-iTBX study participants. AIMS Evaluation of structure quality as part of a cluster-randomized controlled intervention study. METHODS Structure quality in multiprofessional teams from n = 44 NH (n = 44 NH directors, n = 91 family doctors (FD), and n = 52 pharmacies with n = 62 pharmacists) was assessed using self-designed questionnaires at baseline. Main aspects of the questionnaires related to the qualification of participants, quality management, the medication process and size of the facilities. All completed questionnaires were included. number of PIM/antipsychotics was drawn from the baseline medication analysis in 692 NHR. Data were analyzed by descriptive statistics and mixed model logistic regression. RESULTS The presence of a nurse with one of the additional qualifications pain nurse or Zertifiziertes Curriculum (Zercur) Geriatrie in the participating NH was associated with a lower risk for the prescription of PIM/antipsychotics. No association between any characteristic in the other participants at baseline was observed. CONCLUSIONS AND DISCUSSION The results support the known role of nursing qualification in the quality and safety of care. Further studies need to look more closely at how use is made of the additional qualifications within the multiprofessional teams. Perspectively, the results can contribute to the development of quality standards in NH in Germany.
Collapse
Affiliation(s)
- Regina Stolz
- Institute for General Practice and Interprofessional Care, Medical Faculty, University Tübingen, Osianderstr. 5, 72076, Tübingen, Germany.
| | - Olaf Krause
- Institute for General Practice and Palliative Care, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Ulrike Junius-Walker
- Institute for General Practice and Palliative Care, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Petra Thürmann
- Chair of Clinical Pharmacology, Faculty of Health, University Witten/Herdecke, Helios University Hospital Wuppertal University Witten/Herdecke, Heusnerstr. 40, 42283, Wuppertal, Germany
| | - Angela Fuchs
- Institute of General Practice, Medical Faculty, Centre for Health and Society, Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany
| | - Stefan Wilm
- Institute of General Practice, Medical Faculty, Centre for Health and Society, Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany
| | - Anja Wollny
- Institute of General Practice, University Medical Center Rostock, Doberaner Strasse 142, P.O. Box 108880, 18057, Rostock, Germany
| | - Franziska Rebentisch
- Institute of General Practice, University Medical Center Rostock, Doberaner Strasse 142, P.O. Box 108880, 18057, Rostock, Germany
| | - Birgitt Wiese
- Institute for General Practice and Palliative Care, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Stefanie Joos
- Institute for General Practice and Interprofessional Care, Medical Faculty, University Tübingen, Osianderstr. 5, 72076, Tübingen, Germany
| | - Hannah Haumann
- Institute for General Practice and Interprofessional Care, Medical Faculty, University Tübingen, Osianderstr. 5, 72076, Tübingen, Germany
| |
Collapse
|
21
|
Alcon C, Bergman E, Humphrey J, Patel RM, Wang-Price S. The Relationship between Pain Catastrophizing and Cognitive Function in Chronic Musculoskeletal Pain: A Scoping Review. Pain Res Manag 2023; 2023:5851450. [PMID: 37719894 PMCID: PMC10505081 DOI: 10.1155/2023/5851450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/16/2023] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
Objective Chronic musculoskeletal pain (CMP) poses a considerable threat to physical, mental, and financial health worldwide. Beyond physical difficulties, CMP has a pronounced impact on pain behaviors and cognitive function. The purpose of this scoping review was to examine the relationship between pain catastrophizing (PC) and cognitive function in CMP, identify gaps in the literature, and provide future directions for research on the topic. Methods Search strings were entered in the following databases: PubMed, CINAHL, Nursing and Allied Health, Ovid Emcare, PsycInfo, and Scopus. Data from the included articles were extracted thematically based on diagnostic classification and included author(s), year of publication, country, aim, sample, methods, intervention (if applicable), and key findings. Results 30 articles were included after screening. The studied populations included patients with fibromyalgia, chronic low back pain, and CMP. Two studies were designed to assess the relationship between PC and cognition as the primary aim. The included studies demonstrated variable evidence regarding the relationship between PC and cognition. Only four studies included clinically relevant PC populations (i.e., Pain Catastrophizing Scale score >30), and all found significant correlations. Conclusion Although evidence exists for the relationship between cognitive function and PC, there is a lack of rigorous research to indicate the strength of this relationship and the specific cognitive functions affected. The literature lacks appropriate populations needed to investigate clinically relevant PC and is limited by heterogeneous neuropsychological test batteries. Future research should include populations demonstrating the behaviors being studied, intentional analysis of outcomes, and appropriate cognitive tests.
Collapse
Affiliation(s)
- Cory Alcon
- High Point University, Department of Physical Therapy, High Point, NC, USA
- Texas Woman's University, School of Physical Therapy, Dallas, TX, USA
| | - Elizabeth Bergman
- Texas Woman's University, School of Physical Therapy, Houston, TX, USA
| | - John Humphrey
- Texas Woman's University, School of Physical Therapy, Dallas, TX, USA
| | - Rupal M. Patel
- Texas Woman's University, School of Physical Therapy, Houston, TX, USA
| | - Sharon Wang-Price
- Texas Woman's University, School of Physical Therapy, Dallas, TX, USA
| |
Collapse
|
22
|
Zhi HW, Jia YZ, Bo HQ, Li HT, Zhang SS, Wang YH, Yang J, Hu MZ, Wu HY, Cui WQ, Xu XD. Curcumin alleviates orofacial allodynia and improves cognitive impairment via regulating hippocampal synaptic plasticity in a mouse model of trigeminal neuralgia. Aging (Albany NY) 2023; 15:8458-8470. [PMID: 37632838 PMCID: PMC10496987 DOI: 10.18632/aging.204984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/24/2023] [Indexed: 08/28/2023]
Abstract
OBJECTIVE Cognitive impairment, one of the most prevalent complications of trigeminal neuralgia, is troubling for patients and clinicians due to limited therapeutic options. Curcumin shows antinociception and neuroprotection pharmacologically, suggesting that it may have therapeutic effect on this complication. This study aimed to investigate whether curcumin alleviates orofacial allodynia and improves cognitive impairment by regulating hippocampal CA1 region synaptic plasticity in trigeminal neuralgia. METHODS A mouse model of trigeminal neuralgia was established by partially transecting the infraorbital nerve (pT-ION). Curcumin was administered by gavage twice daily for 14 days. Nociceptive thresholds were measured using the von Frey and acetone test, and the cognitive functions were evaluated using the Morris water maze test. Dendritic spines and synaptic ultrastructures in the hippocampal CA1 area were observed by Golgi staining and transmission electron microscopy. RESULTS Curcumin intervention increased the mechanical and cold pain thresholds of models. It decreased the escape latency and distance to the platform and increased the number of platform crossings and dwell time in the target quadrant of models, and improved spatial learning and memory deficits. Furthermore, it partially restored the disorder of the density and proportion of dendritic spines and the abnormal density and structure of synapses in the hippocampal CA1 region of models. CONCLUSION Curcumin alleviates abnormal orofacial pain and cognitive impairment in pT-ION mice by a mechanism that may be related to the synaptic plasticity of hippocampal CA1, suggesting that curcumin is a potential strategy for repairing cognitive dysfunction under long-term neuropathic pain conditions.
Collapse
Affiliation(s)
- Hong-Wei Zhi
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Yu-Zhi Jia
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Huai-Qian Bo
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Hai-Tao Li
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Si-Shuo Zhang
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Ya-Han Wang
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Jie Yang
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Ming-Zhe Hu
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Hong-Yun Wu
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| | - Wen-Qiang Cui
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, PR China
| | - Xiang-Dong Xu
- Experimental Center, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
| |
Collapse
|
23
|
Dass R, Kalia M, Harris J, Packham T. Understanding the Experience and Impacts of Brain Fog in Chronic Pain: A Scoping Review. Can J Pain 2023; 7:2217865. [PMID: 37441085 PMCID: PMC10334862 DOI: 10.1080/24740527.2023.2217865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 07/15/2023]
Abstract
Introduction Approximately 15% to 40% of persons with chronic pain as a primary disorder experience brain fog. Prior research has investigated the etiology of "brain fog" in conditions in which pain presents as a key feature (e.g., fibromyalgia). However, it remains understudied in the context of chronic 10 musculoskeletal pain. Following current scoping review guidelines, we obtained stakeholder input from patient and health care professionals (HCPs) to define this phenomenon. Specific aims of this review were to (1) identify factors contributing to brain fog, (2) identify the functional correlates of brain fog and assessments used to measure them, and (3) establish a definition of brain fog that can be employed by researchers and HCPs to advance research and care. Methods A scoping review was conducted using recommendations of the Joanna Briggs Institute methodology of scoping reviews and the Levac et al methodology. Embase, Cinahl, PsycINFO, and Medline was searched to identify relevant sources. Findings were verified with patient and healthcare professionals. Results We identified four 15 key features of brain fog: perceived variability, subjective cognitive dysfunction, participation limitations, and changes in functional activities. We developed a model of brain fog illustrating the overlapping categories of contributors to brain fog in chronic musculoskeletal pain: (1) neuroanatomical and neurophysiological, (2) mental health/emotional, and (3) environmental/lifestyle. Conclusion The results of this scoping review conclude that the inconsistency in research regarding brain fog in 20 chronic musculoskeletal pain is obstructing a clear understanding of the phenomenon and therefore may be impeding persons with chronic pain and brain fog from receiving optimal care.
Collapse
Affiliation(s)
- Ronessa Dass
- School of Rehabilitation Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Mohini Kalia
- Faculty of Sciences, Carleton University, Ottawa, Ontario, Canada
| | - Jocelyn Harris
- School of Rehabilitation Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Tara Packham
- School of Rehabilitation Sciences, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
24
|
Jacobsen HB, Brun A, Stubhaug A, Reme SE. Stress specifically deteriorates working memory in peripheral neuropathic pain and fibromyalgia. Brain Commun 2023; 5:fcad194. [PMID: 37465756 PMCID: PMC10351603 DOI: 10.1093/braincomms/fcad194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 05/25/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023] Open
Abstract
This study aimed to explore the influence of chronic stress, measured through hair cortisol, on executive functions in individuals with chronic pain. We expected that there would be significant differences in chronic stress and executive functioning between pain patients and healthy controls, as well as between primary and secondary pain classifications. We also hypothesized that hair cortisol concentration was predictive of worse performance on tests of executive functions, controlling for objective and subjective covariates. For this study, 122 participants provided a hair sample (n = 40 with fibromyalgia; n = 24 with peripheral neuropathic pain; n = 58 matched healthy controls). Eighty-four of these participants also completed highly detailed testing of executive functions (n = 40 with fibromyalgia; n = 24 with peripheral neuropathic pain; n = 20 healthy controls). To assess differences in stress levels and executive functions, t-tests were used to compare patients with controls as well as fibromyalgia with peripheral neuropathic pain. Then, univariate regressions were used to explore associations between stress and executive functioning in both chronic pain classifications. Any significant univariate associations were carried over to hierarchical multivariate regression models. We found that patients with chronic pain had significantly higher cortisol levels than healthy controls, but all groups showed similar executive functioning. Hierarchical multiple regression analyses disclosed that in a model controlling for age, sex and pain medication usage, hair cortisol levels explained 8% of the variance in spatial working memory strategy in individuals with chronic pain. The overall model explained 24% of the variance in spatial working memory. In a second model using imputed data, including both objective and subjectively reported covariates, hair cortisol levels explained 9% of the variance, and the full model 31% of the variance in spatial working memory performance. Higher levels of cortisol indicated worse performance. In this study, an applied measure of chronic stress, namely hair cortisol, explained a substantial part of the variance on a spatial working memory task. The current results have important implications for understanding and treating cognitive impairments in chronic pain.
Collapse
Affiliation(s)
- Henrik Børsting Jacobsen
- The Mind Body Lab, Department of Psychology, University of Oslo, Oslo 0373, Norway
- Department of Pain Management and Research, Oslo University Hospital, Oslo 0853, Norway
| | - Aurora Brun
- The Mind Body Lab, Department of Psychology, University of Oslo, Oslo 0373, Norway
| | - Audun Stubhaug
- Department of Pain Management and Research, Oslo University Hospital, Oslo 0853, Norway
| | - Silje Endresen Reme
- The Mind Body Lab, Department of Psychology, University of Oslo, Oslo 0373, Norway
- Department of Pain Management and Research, Oslo University Hospital, Oslo 0853, Norway
| |
Collapse
|
25
|
Fleck DE, Wilson M, Lewis D, Welge JA, Arya G, Sathyan A, Cohen K, John Winhusen T. Neurocognitive predictors of adherence to an online pain self-management program adjunct to long-term opioid therapy. J Clin Exp Neuropsychol 2023; 45:242-254. [PMID: 37278690 PMCID: PMC10526690 DOI: 10.1080/13803395.2023.2221396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 05/26/2023] [Indexed: 06/07/2023]
Abstract
INTRODUCTION While pain self-management programs can significantly improve patient outcomes, poor adherence is common and the need for research on predictors of adherence has been noted. A potential, but commonly overlooked, predictor is cognitive function. Our aim, then, was to examine the relative influence of various cognitive functional domains on engagement with an online pain self-management program. METHOD A secondary analysis of a randomized controlled trial testing the impact of E-health (a 4-month subscription to the online Goalistics Chronic Pain Management Program) plus treatment as usual, relative to treatment as usual alone, on pain and opioid dose outcomes in adults receiving long-term opioid therapy of morphine equivalence dose ≥20 mg; 165 E-health participants who completed an on-line neurocognitive battery were included in this sub-analysis. A variety of demographic, clinical, and symptom rating scales were also examined. We hypothesized that better processing speed and executive functions at baseline would predict engagement with the 4-month E-health subscription. RESULTS Ten functional cognitive domains were identified using exploratory factor analysis and the resultant factor scores applied for hypothesis testing. The strongest predictors of E-health engagement were selective attention, and response inhibition and speed domains. An explainable machine learning algorithm improved classification accuracy, sensitivity, and specificity. CONCLUSIONS The results suggest that cognition, especially selective attention, inhibitory control, and processing speed, is predictive of online chronic pain self-management program engagement. Future research to replicate and extend these findings seems warranted. CLINICALTRIALS.GOV REGISTRATION NUMBER NCT03309188.
Collapse
Affiliation(s)
- David E. Fleck
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Marian Wilson
- Washington State University College of Nursing, Spokane, WA, USA
- Program of Excellence in Addictions Research, Washington State University, Spokane, WA, USA
| | - Daniel Lewis
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jeffrey A. Welge
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Grace Arya
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Anoop Sathyan
- Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati College of Engineering and Applied Science, Cincinnati, OH, USA
| | - Kelly Cohen
- Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati College of Engineering and Applied Science, Cincinnati, OH, USA
| | - T. John Winhusen
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Center for Addiction Research, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| |
Collapse
|
26
|
Kazim MA, Strahl A, Moritz S, Arlt S, Niemeier A. Chronic pain in osteoarthritis of the hip is associated with selective cognitive impairment. Arch Orthop Trauma Surg 2023; 143:2189-2197. [PMID: 35511355 PMCID: PMC10030427 DOI: 10.1007/s00402-022-04445-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/10/2022] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Chronic pain of various origin is known to be associated with selective cognitive impairment. Osteoarthritis (OA) of the hip is one of the leading causes of chronic pain in the adult population, but its association with cognitive performance has not been evaluated. Here, we investigate the effect of chronic pain due to unilateral OA of one hip and no further source of chronic pain on cognitive performance. MATERIALS AND METHODS A neuropsychological test battery, consisting of the Mini-Mental State Examination, Rey-Osterrieth complex figure test, Rivermead behavioural memory test, d2 test of attention, and F-A-S test was applied in 148 patients and 82 healthy pain-free control individuals. The influence of potentially confounding factors such as depression and anxiety was examined. RESULTS Patients with OA of the hip showed decreased performance in specific neuropsychological tests. Performance in verbal and visual short-term and long-term memory and selective attention tests was significantly poorer compared to healthy controls. Whereas the executive functions "updating", "set shifting", "response inhibition" and "reflection" appear intact, "problem solving" and "planning" were impaired. None of the confounders showed any influence on cognitive performance in both study groups. CONCLUSION We conclude that chronic pain secondary to end-stage hip OA is associated with selective cognitive impairment. Future studies are required to investigate the effect of total hip arthroplasty on cognitive performance.
Collapse
Affiliation(s)
- Murteza Ali Kazim
- Division of Orthopaedics, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
| | - André Strahl
- Division of Orthopaedics, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Steffen Moritz
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Sönke Arlt
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Andreas Niemeier
- Division of Orthopaedics, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, Germany
| |
Collapse
|
27
|
Timm A, Schmidt-Wilcke T, Blenk S, Studer B. Altered social decision making in patients with chronic pain. Psychol Med 2023; 53:2466-2475. [PMID: 34736548 PMCID: PMC10123842 DOI: 10.1017/s0033291721004359] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 09/10/2021] [Accepted: 10/06/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Chronic pain affects up to 20% of the population, impairs quality of life and reduces social participation. Previous research reported that pain-related perceived injustice covaries with these negative consequences. The current study probed whether chronic pain patients responded more strongly to disadvantageous social inequity than healthy individuals. METHODS We administered the Ultimatum Game, a neuroeconomic social exchange game, where a sum of money is split between two players to a large sample of patients with chronic pain disorder with somatic and psychological factors (n = 102) and healthy controls (n = 101). Anonymised, and in truth experimentally controlled, co-players proposed a split, and our participants either accepted or rejected these offers. RESULTS Chronic pain patients were hypersensitive to disadvantageous inequity and punished their co-players for proposed unequal splits more often than healthy controls. Furthermore, this systematic shift in social decision making was independent of patients' performance on tests of executive functions and risk-sensitive (non-social) decision making . CONCLUSIONS Our findings indicate that chronic pain is associated with anomalies in social decision making (compared to healthy controls) and hypersensitivity to social inequity that is likely to negatively impact social partaking and thereby the quality of life.
Collapse
Affiliation(s)
- Alicja Timm
- Medical Faculty, Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- Department of Neurology, Mauritius Hospital Meerbusch, Meerbusch, Germany
| | - Tobias Schmidt-Wilcke
- Medical Faculty, Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- Department of Neurology, Mauritius Hospital Meerbusch, Meerbusch, Germany
| | - Sandra Blenk
- Centre for Pain Medicine, St.Vinzenz Hospital Düsseldorf, Düsseldorf, Germany
| | - Bettina Studer
- Medical Faculty, Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- Department of Neurology, Mauritius Hospital Meerbusch, Meerbusch, Germany
| |
Collapse
|
28
|
Murdoch M, Window P, Morton C, O'Donohue R, Ballard E, Claus A. People at a persistent pain service can walk it, but some struggle to talk about it: Reliability, detectable difference and clinically important difference of the six-minute walk test. Musculoskeletal Care 2023; 21:221-231. [PMID: 36065494 DOI: 10.1002/msc.1687] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES The six-minute walk test (6MWT) is a commonly used measure of functional capacity. This study is the first to investigate the test-retest reliability, minimal detectable difference (MDD) and the minimal clinically important difference (MCID) for people attending a persistent pain service. Relationships between change in 6MWT performance and change in self-reported physical, functional and psychological outcome measures were also explored. METHODS A cross-sectional repeated measures design was used with people having >9 months of pain attending an 8-week outpatient persistent pain programme. For reliability and MDD, 27 people were recruited, for MCID calculations, 32 people were recruited. The MCID was examined by dichotomising people into "improvers", or "non-improvers" based upon the Global Rating of Change (GRC) in physical abilities score. RESULTS The mean (SD) 6MWT distance was 389.4 (93.6) m at programme start, and 427.8 (83.0) m at week eight completion. The test-retest reliability was good (intraclass correlation coefficient = 0.89) and the MDD = 86.1 m. As there was no relationship between change in 6MWT distance and GRC physical abilities at week eight (r = 0.132, p = 0.472) the MCID could not be calculated. Furthermore, no relationships were found between change in 6MWT distance and other self-reported measures. Changes in GRC physical abilities and 6MWT were frequently discordant, with increased 6MWT for 7/11 "GRC non-improvers" and decreased 6MWT for 7/21 "GRC improvers". CONCLUSIONS Amongst this cohort, change in physical ability may or may not be reflected by self-reported change. Objective tests of physical ability are recommended for people attending pain services, and validated tests should align with intervention aims.
Collapse
Affiliation(s)
- Megan Murdoch
- Physiotherapy Department, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
- Tess Cramond Pain and Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Peter Window
- Physiotherapy Department, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Caroline Morton
- Physiotherapy Department, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
- Tess Cramond Pain and Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Riley O'Donohue
- Tess Cramond Pain and Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Emma Ballard
- QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Andrew Claus
- Tess Cramond Pain and Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
- The University of Queensland, School of Health and Rehabilitation Sciences, St Lucia, Qld, Australia
| |
Collapse
|
29
|
Yuan H, Ahmed WL, Liu M, Tu S, Zhou F, Wang S. Contribution of pain to subsequent cognitive decline or dementia: A systematic review and meta-analysis of cohort studies. Int J Nurs Stud 2023; 138:104409. [PMID: 36527860 DOI: 10.1016/j.ijnurstu.2022.104409] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Dementia is an urgent public health problem worldwide, and the determination of the contribution of pain to cognitive decline or dementia is significant for the prevention of dementia. OBJECTIVE To comprehensively explore the contribution of pain to subsequent cognitive decline or dementia and analyze possible influencing factors. DESIGN Systematic review and meta-analysis of cohort studies. METHODS We systematically searched MEDLINE, EMBASE, PsycINFO, CINAHL, Cochrane Library, China National Knowledge Internet, WANFANG DATA and VIP for cohort studies from database inception to January 21, 2022. Random-effects meta-analysis was used to pool odds ratios (ORs) and 95% confidence intervals (CIs) of incident cognitive decline or dementia among patients with pain. Subgroup analyses and meta-regression were used to explore the sources of heterogeneity. RESULTS A total of 35 cohort studies containing 1,122,503 participants were included. As a whole, pain (OR = 1.24; 95% CI = 1.17-1.31) was a risk factor for subsequent cognitive decline or dementia; headache, migraine, tension-type headache, widespread pain, and irritable bowel syndrome, but not burning mouth syndrome, were also risk factors. Pain increased the risk of all-cause dementia (OR = 1.26; 95% CI = 1.18-1.35), Alzheimer's disease (OR = 1.28; 95% CI = 1.12-1.47), and vascular dementia (OR = 1.31; 95% CI = 1.06-1.62). Pain interference (OR = 1.42; 95% CI = 1.16-1.74) was associated with an increased risk of cognitive decline or dementia, while pain intensity was not. Pooled results from studies with sample sizes less than 2000 or with relatively low quality showed that pain did not increase the risk of cognitive decline or dementia. There was no statistically significant increase in the risk of cognitive decline or dementia in people with pain aged ≥75 years. CONCLUSIONS Our results demonstrated that pain increased the risk of subsequent cognitive decline or dementia. Sample size, study methodological quality, types of pain, pain severity (pain interference), and age composition of the study population may affect the relationship between pain and cognitive decline or dementia. REGISTRATION PROSPERO (CRD42022316406).
Collapse
Affiliation(s)
- Hui Yuan
- School of Nursing, Xuzhou Medical University, Jiangsu, China.
| | | | - Mengdie Liu
- School of Nursing, Xuzhou Medical University, Jiangsu, China.
| | - Shumin Tu
- Anesthesia Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China.
| | - Fang Zhou
- School of Nursing, Xuzhou Medical University, Jiangsu, China.
| | - Shuo Wang
- School of Nursing, Xuzhou Medical University, Jiangsu, China.
| |
Collapse
|
30
|
Mosabbir A. Mechanisms behind the Development of Chronic Low Back Pain and Its Neurodegenerative Features. Life (Basel) 2022; 13. [PMID: 36676033 DOI: 10.3390/life13010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022]
Abstract
Chronic back pain is complex and there is no guarantee that treating its potential causes will cause the pain to go away. Therefore, rather than attempting to "cure" chronic pain, many clinicians, caregivers and researchers aim to help educate patients about their pain and try to help them live a better quality of life despite their condition. A systematic review has demonstrated that patient education has a large effect on pain and pain related disability when done in conjunction with treatments. Therefore, understanding and updating our current state of knowledge of the pathophysiology of back pain is important in educating patients as well as guiding the development of novel therapeutics. Growing evidence suggests that back pain causes morphological changes in the central nervous system and that these changes have significant overlap with those seen in common neurodegenerative disorders. These similarities in mechanisms may explain the associations between chronic low back pain and cognitive decline and brain fog. The neurodegenerative underpinnings of chronic low back pain demonstrate a new layer of understanding for this condition, which may help inspire new strategies in pain education and management, as well as potentially improve current treatment.
Collapse
|
31
|
Cancela T, Gendolla GHE, Silvestrini N. Pain and gain: Monetary incentive moderates pain's impact on
effort‐related
cardiac response. Psychophysiology 2022; 60:e14231. [PMID: 36546506 DOI: 10.1111/psyp.14231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 09/20/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022]
Abstract
Ample evidence suggests that pain leads to additional demand in cognitive functioning, presumably due to its negative affective component and its propensity to capture attention. To highlight the role of motivational incentive, two experiments tested the combined effect of pain and monetary incentive on effort-related cardiovascular response during cognitive performance. In both studies, healthy volunteers received individually adjusted painful or nonpainful thermal stimulations during a difficult cognitive task (4-back task in Experiment 1; short-term memory task in Experiment 2) and expected high (12 Swiss Francs in both experiments) or low monetary incentive (1 Swiss Franc in Experiment 1; 0.10 Swiss Francs in Experiment 2) for successful performance. Effort was primarily assessed as changes in cardiac pre-ejection period (PEP). We predicted pain to increase subjective task difficulty during cognitive performance. Moreover, according to motivational intensity theory, we expected this to increase effort only when high effort was justified by high monetary incentive. Correspondingly, pain should lead to low effort (disengagement) when monetary incentive was low. Effort in the nonpainful conditions was expected to fall in between these conditions. The results of both studies support our predictions. Our findings provide the first evidence for the moderating effect of monetary incentive on physical pain's impact on effort-related cardiovascular response. Accordingly, motivational incentives can counteract effort deficits associated with pain.
Collapse
Affiliation(s)
- Tamara Cancela
- Geneva Motivation Lab, FPSE, Section of Psychology University of Geneva Geneva Switzerland
| | - Guido H. E. Gendolla
- Geneva Motivation Lab, FPSE, Section of Psychology University of Geneva Geneva Switzerland
- Swiss Center for Affective Sciences University of Geneva Geneva Switzerland
| | - Nicolas Silvestrini
- Geneva Motivation Lab, FPSE, Section of Psychology University of Geneva Geneva Switzerland
| |
Collapse
|
32
|
Pereira Nery ECH, Rocha NP, Cruz VT, Silva AG. Systematic review and meta-analysis on the association between chronic low back pain and cognitive function. Pain Pract 2022; 23:399-408. [PMID: 36504248 DOI: 10.1111/papr.13194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 10/28/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Abstract
This study aimed to identify and assess the evidence on the association between idiopathic chronic low back pain (LBP) and cognitive function in individuals with LBP. A secondary aim was to explore whether changes in cognitive function are associated with pain characteristics and psychological factors (eg, catastrophizing and fear of movement). Eleven studies were included in this systematic review, and four meta-analyses were conducted. Low to very low-quality evidence suggests impaired cognitive function in individuals with LBP compared to asymptomatic controls for problem solving (k = 5; d = 0.33; CI = 0.16-0.50; z = 3.85 p = 0.0001), speed of information processing (k = 5; d = 0.44; CI = 0.22-0.65; z = 4.02 p < 0.0001), working memory (k = 6; d = 0.50; CI = 0.34-0.66; z = 6.09 p < 0.0001), and delayed memory (k = 3; d = 0.34; CI = 0.07-0.6, z = 2.49 p = 0.02). The association between LBP intensity and psychological factors and cognitive function was inconclusive. More studies are needed to explore these associations and improve evidence in this field. The results of this study suggest that cognitive aspects should be considered during the rehabilitation process of patients with LBP and raise further questions, including whether individuals with LBP are at a greater risk of developing dementia or whether targeting cognitive function will increase the probability of success of LBP treatment. These questions should, also, be considered in future studies.
Collapse
Affiliation(s)
| | - Nelson P Rocha
- IEETA and Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Vitor T Cruz
- Neurology Department, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal, EPIUnit - Institute of Public Health, Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
| | - Anabela G Silva
- CINTESIS.UA@RISE and School of Health Sciences, University of Aveiro, Aveiro, Portugal
| |
Collapse
|
33
|
Vaezipour A, Horswill MS, Andrews NE, Johnston V, Delhomme P, Oviedo-Trespalacios O. How distracting is chronic pain? The impact of chronic pain on driving behaviour and hazard perception. Accid Anal Prev 2022; 178:106856. [PMID: 36228423 DOI: 10.1016/j.aap.2022.106856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
In road safety research, few studies have examined driving behaviour in chronic pain cohorts. The aim of this study was to investigate driving behaviour among drivers experiencing chronic pain. We compared individuals with chronic pain with age-gender matched healthy controls. Participants completed: (i) an anonymous online survey that included participant demographics, transport characteristics, self-reported driving behaviour, and pain characteristics (ii) a response-time hazard perception test and a verbal-response hazard prediction test for drivers, and (iii) a driving diary in which participants recorded their driving over two weeks. The results showed that participants with chronic pain were not significantly worse than controls for hazard perception and prediction test scores, self-reported attention-related errors, driving errors, driving violations, and involuntary distraction. Drivers with chronic pain did report significantly more driving lapses but this effect became non-significant when variables confounded with chronic pain, such as fatigue, were adjusted for. We also found that participants who reported particularly high levels of chronic pain performed worse in the hazard prediction test compared to the control group (and this effect could not be accounted for by other variables associated with chronic pain). In addition, participants with chronic pain reported significantly higher driving workload (mental demand, physical demand, effort, and frustration) compared with controls. The findings of this study provide new insights into driving behaviour in individuals with chronic pain and recommendations for future research in terms of driving assessment and self-regulation strategies are provided.
Collapse
Affiliation(s)
- Atiyeh Vaezipour
- RECOVER Injury Research Centre, The University of Queensland, Australia. https://recover.centre.uq.edu.au
| | - Mark S Horswill
- School of Psychology, The University of Queensland, Australia
| | - Nicole E Andrews
- RECOVER Injury Research Centre, The University of Queensland, Australia; Tess Cramond Pain and Research Centre, The Royal Brisbane and Women's Hospital, Herston, Queensland, Australia; Occupational Therapy Department, The Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Venerina Johnston
- RECOVER Injury Research Centre, The University of Queensland, Australia
| | - Patricia Delhomme
- Univ Gustave Eiffel, Université Paris Cité, LaPEA, Versailles, France
| | | |
Collapse
|
34
|
Ng WQ, Hartanto A. The effect of executive function on the development of chronic pain: A prospective longitudinal study. Soc Sci Med 2022; 314:115478. [PMID: 36332531 DOI: 10.1016/j.socscimed.2022.115478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 10/11/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
Abstract
Increasing evidence suggests a close association between chronic pain and executive function, a set of cognitive processes necessary for goal-directed behaviors. However, there is a dearth of longitudinal studies examining the predictive effect of executive function on the development of chronic pain. Drawing on the cyclical model of executive function and health, we sought to examine how executive function, measured at baseline, may predict chronic pain etiology approximately 9 years later. Using a large-scale dataset of midlife adults (N = 1553) from the MIDUS 2 and 3 (Midlife Development in the United States) studies, we employed multivariate logistic regression to examine the etiology of new chronic pain for individuals who did not have chronic pain at baseline. Further, we also tested whether executive function predicted the degree of pain interference, among individuals with chronic pain. Our results revealed that lower baseline executive function was associated with a significant likelihood of developing chronic pain 9 years later (OR = 0.812, p = .001), even after adjusting for demographics, health, and psychosocial confounds (OR = 0.827, p = .014). However, executive function failed to robustly predict the etiology and degree of chronic pain interference. Our findings underscore the critical role of executive function on the development of chronic pain.
Collapse
|
35
|
Schmidt J, Weisbrod M, Fritz M, Aschenbrenner S. Kognition und Kraftfahreignung bei chronischem Schmerzsyndrom. Nervenarzt 2022; 94:335-343. [PMID: 36169672 PMCID: PMC10104908 DOI: 10.1007/s00115-022-01387-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/25/2022] [Indexed: 10/14/2022]
Abstract
ZusammenfassungKognitive Auffälligkeiten bei Patienten mit chronischen Schmerzen finden in wissenschaftlichen Untersuchungen zunehmend Beachtung. Die Folgen dieser kognitiven Störungen in Bezug auf die Schmerzbewältigung, die Alltagsgestaltung und die Kraftfahreignung werden in der klinischen Praxis jedoch kaum berücksichtigt, obwohl die Hälfte aller Patienten davon betroffen ist. Die vorliegende Arbeit fasst die aktuelle Studienlage zusammen und diskutiert Möglichkeiten der Integration in die klinische und therapeutische Versorgung.
Collapse
Affiliation(s)
- J Schmidt
- Abteilung für Klinische Psychologie und Neuropsychologie, SRH Klinikum Karlsbad, Guttmannstr. 1, 76307, Karlsbad-Langensteinbach, Deutschland.
- Medizinische Fakultät Heidelberg der Universität Heidelberg, Heidelberg, Deutschland.
| | - M Weisbrod
- Abteilung für Psychiatrie und Psychotherapie, SRH Klinikum Karlsbad, Karlsbad-Langensteinbach, Deutschland
- Klinik für Allgemeine Psychiatrie, Zentrum für Psychosoziale Medizin, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - M Fritz
- Abteilung für Neurologie, SRH Klinikum Karlsbad, Karlsbad-Langensteinbach, Deutschland
| | - S Aschenbrenner
- Abteilung für Klinische Psychologie und Neuropsychologie, SRH Klinikum Karlsbad, Guttmannstr. 1, 76307, Karlsbad-Langensteinbach, Deutschland
- Abteilung für Psychiatrie und Psychotherapie, SRH Klinikum Karlsbad, Karlsbad-Langensteinbach, Deutschland
| |
Collapse
|
36
|
Li Z, He Z, Li Z, Sun T, Zhang W, Xiang H. Differential synaptic mechanism underlying the neuronal modulation of prefrontal cortex, amygdala, and hippocampus in response to chronic postsurgical pain with or without cognitive deficits in rats. Front Mol Neurosci 2022; 15:961995. [PMID: 36117908 PMCID: PMC9478413 DOI: 10.3389/fnmol.2022.961995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 08/12/2022] [Indexed: 11/15/2022] Open
Abstract
Chronic Postsurgical Pain (CPSP) is well recognized to impair cognition, particularly memory. Mounting evidence suggests anatomic and mechanistic overlap between pain and cognition on several levels. Interestingly, the drugs currently used for treating chronic pain, including opioids, gabapentin, and NMDAR (N-methyl-D-aspartate receptor) antagonists, are also known to impair cognition. So whether pain-related cognitive deficits have different synaptic mechanisms as those underlying pain remains to be elucidated. In this context, the synaptic transmission in the unsusceptible group (cognitively normal pain rats) was isolated from that in the susceptible group (cognitively compromised pain rats). It was revealed that nearly two-thirds of the CPSP rats suffered cognitive impairment. The whole-cell voltage-clamp recordings revealed that the neuronal excitability and synaptic transmission in the prefrontal cortex and amygdala neurons were enhanced in the unsusceptible group, while these parameters remained the same in the susceptible group. Moreover, the neuronal excitability and synaptic transmission in hippocampus neurons demonstrated the opposite trend. Correspondingly, the levels of synaptic transmission-related proteins demonstrated a tendency similar to that of the excitatory and inhibitory synaptic transmission. Furthermore, morphologically, the synapse ultrastructure varied in the postsynaptic density (PSD) between the CPSP rats with and without cognitive deficits. Together, these observations indicated that basal excitatory and inhibitory synaptic transmission changes were strikingly different between the CPSP rats with and without cognitive deficits.
Collapse
|
37
|
Leake HB, Mardon A, Stanton TR, Harvie DS, Butler DS, Karran EL, Wilson D, Booth J, Barker T, Wood P, Fried K, Hayes C, Taylor L, Macoun M, Simister A, Moseley GL, Berryman C. Key Learning Statements for persistent pain education: an iterative analysis of consumer, clinician and researcher perspectives and development of public messaging. J Pain 2022; 23:1989-2001. [PMID: 35934276 DOI: 10.1016/j.jpain.2022.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 10/16/2022]
Abstract
Over the last decade, the content, delivery and media of pain education have been adjusted in line with scientific discovery in pain and educational sciences, and in line with consumer perspectives. This paper describes a decade-long process of exploring consumer perspectives on pain science education concepts to inform clinician-derived educational updates (undertaken by the authors). Data were collected as part of a quality audit via a series of online surveys in which consent (non-specific) was obtained from consumers for their data to be used in published research. Consumers who presented for care for a persistent pain condition and were treated with a pain science education informed approach were invited to provide anonymous feedback about their current health status and pain journey experience 6, 12 or 18 months after initial assessment. Two-hundred eighteen consumers reported improvement in health status at follow-up. Results of the surveys from three cohorts of consumers that reported improvement were used to generate iterative versions of 'Key Learning Statements'. Early iteration of these Key Learning Statements was used to inform the development of Target Concepts and associated community-targeted pain education resources for use in public health and health professional workforce capacity building initiatives. Perspective This paper reflects an explicit interest in the insights of people who have been challenged by persistent pain and then recovered, to improve pain care. Identifying pain science concepts that consumers valued learning provided valuable information to inform resources for clinical interactions and community-targeted pain education campaigns.
Collapse
Affiliation(s)
- Hayley B Leake
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Centre for Impact, Neuroscience Research Australia, Sydney, Australia
| | - Amelia Mardon
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia
| | - Tasha R Stanton
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - Daniel S Harvie
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - David S Butler
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - Emma L Karran
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - Dianne Wilson
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - John Booth
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Faculty of Medicine and Health, School of Health Sciences, University of New South Wales, Sydney, Australia
| | - Trevor Barker
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Lived experience advocate, Yorta Yorta Land, Australia
| | - Pene Wood
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; School of Molecular Sciences, College of Science, Health & Engineering, La Trobe University, Bendigo, Victoria
| | - Kal Fried
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Rehabilitation Medicine Group, Boonwurrung Land, Melbourne, Australia
| | - Chris Hayes
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Hunter Integrated Pain Service, Awabakal Land, John Hunter Hospital, New Lambton Heights, Australia
| | - Lissanthea Taylor
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Brain Changer, Canberra, Australia; Parkway Health, Shanghai, China
| | - Melanie Macoun
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Australian Capital Territory Pain Centre, Ngunnawal Country, Canberra, Australia
| | - Amanda Simister
- Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; Persistent Pain Clinic, Shoalhaven District Memorial Hospital, Nowra, Australia
| | - G Lorimer Moseley
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia
| | - Carolyn Berryman
- IIMPACT in Health, Kaurna Country, University of South Australia, Adelaide, Australia; Pain Revolution, Kaurna Country, University of South Australia, Adelaide, Australia; School of Biomedicine, Kaurna Country, The University of Adelaide, Adelaide, Australia
| |
Collapse
|
38
|
Ferreira KDS, Velly AM. Cognitive decline over time in patients with chronic pain and headache: how can different outcomes be explained? Pain 2022; 163:e966-7. [PMID: 35838652 DOI: 10.1097/j.pain.0000000000002664] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
39
|
Li Z, Sun T, He Z, Li Z, Zhang W, Wang J, Xiang H. SCFAs Ameliorate Chronic Postsurgical Pain-Related Cognition Dysfunction via the ACSS2-HDAC2 Axis in Rats. Mol Neurobiol 2022; 59:6211-6227. [PMID: 35902549 PMCID: PMC9463230 DOI: 10.1007/s12035-022-02971-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/20/2022] [Indexed: 11/25/2022]
Abstract
Patients with chronic postsurgical pain (CPSP) frequently exhibit comorbid cognitive deficits. Recent observations have emphasized the critical effects of gut microbial metabolites, like short-chain fatty acids (SCFAs), in regulating cognitive function. However, the underlying mechanisms and effective interventions remain unclear. According to hierarchical clustering and 16S rRNA analysis, over two-thirds of the CPSP rats had cognitive impairment, and the CPSP rats with cognitive impairment had an aberrant composition of gut SCFA-producing bacteria. Then, using feces microbiota transplantation, researchers identified a causal relationship between cognitive-behavioral and microbic changes. Similarly, the number of genera that generated SCFAs was decreased in the feces from recipients of cognitive impairment microbiota. Moreover, treatment with the SCFAs alleviated the cognitive-behavioral deficits in the cognitively compromised pain rats. Finally, we observed that SCFA supplementation improved histone acetylation and abnormal synaptic transmission in the medial prefrontal cortex (mPFC), hippocampal CA1, and central amygdala (CeA) area via the ACSS2 (acetyl-CoA synthetase2)-HDAC2 (histone deacetylase 2) axis. These findings link pain-related cognition dysfunction, gut microbiota, and short-chain fatty acids, shedding fresh insight into the pathogenesis and therapy of pain-associated cognition dysfunction.
Collapse
Affiliation(s)
- Zhen Li
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Tianning Sun
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Zhigang He
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Zhixiao Li
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Wencui Zhang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Jie Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, Hubei, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongbing Xiang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
| |
Collapse
|
40
|
Efstathiou MA, Giannaki CD, Roupa Z, Hadjisavvas S, Stefanakis M. Evidence of distorted proprioception and postural control in studies of experimentally induced pain: a critical review of the literature. Scand J Pain 2022; 22:445-456. [PMID: 35470647 DOI: 10.1515/sjpain-2021-0205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/23/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Deficits in proprioception and postural control are common in patients with different musculoskeletal pain syndromes. It has been proposed that pain can negatively affect proprioception and postural control at a peripheral level, however research is limited to animal studies. Human studies have shown that it is more likely, that the link between pain and proprioceptive deficits, lies within changes in the central nervous system where noxious and non-noxious stimuli may overlap. In clinical studies, causality cannot be determined due to other factors which could confound the assessment such as pathophysiological features of the underlying musculoskeletal disorder and different psycho-social influences especially in patients with chronic pain. On the other hand, experimentally induced pain in healthy participants is able to control most of these confounding factors and perhaps offers an assessment of the effects of pain on proprioception and postural control. The aim of this paper is to critically appraise the literature related to the effect of experimentally induced pain on proprioception and postural control. Results from these studies are discussed and limitations are highlighted for future research. METHODS A search of databases (Medline, Scopus, PubMed) was conducted as well as reference check from relevant articles published since 2000. Fifteen studies which explored the effect of experimentally induced pain on postural control and ten studies which explored the effect of experimentally induced pain on proprioception were included. RESULTS We found that in the majority of the studies, postural control was negatively affected by experimentally induced pain. Results for proprioception were mixed depending on the body region and the way the painful stimuli were delivered. Kinesthesia was negatively affected in two studies, while in one study kinesthesia was enhanced. Joint position sense was not affected in four out of five studies. Finally, force sense was affected in three out of four studies. CONCLUSIONS From a clinical point of view, findings from the available literature suggest that experimentally induced pain impairs postural control and could potentially increases the risk for falls in patients. Interventions aiming to reduce pain in these patients could lead to preservation or improvement of their balance. On the other hand, the same conclusion cannot be drawn for the effect of experimentally induced pain on kinesthesia and joint position sense due to the limited number of studies showing such an effect.
Collapse
Affiliation(s)
| | | | - Zoe Roupa
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
| | - Stelios Hadjisavvas
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
| | - Manos Stefanakis
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
| |
Collapse
|
41
|
Oliva CA, Stehberg J, Barra R, Mariqueo T. Neuropathic Pain Induces Interleukin-1β Sensitive Bimodal Glycinergic Activity in the Central Amygdala. Int J Mol Sci 2022; 23:ijms23137356. [PMID: 35806360 PMCID: PMC9266833 DOI: 10.3390/ijms23137356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023] Open
Abstract
Neuropathic pain reduces GABA and glycine receptor (GlyR)-mediated activity in spinal and supraspinal regions associated with pain processing. Interleukin-1β (IL-1β) alters Central Amygdala (CeA) excitability by reducing glycinergic inhibition in a mechanism that involves the auxiliary β-subunit of GlyR (βGlyR), which is highly expressed in this region. However, GlyR activity and its modulation by IL-1β in supraspinal brain regions under neuropathic pain have not been studied. We performed chronic constriction injury (CCI) of the sciatic nerve in male Sprague Dawley rats, a procedure that induces hind paw plantar hyperalgesia and neuropathic pain. Ten days later, the rats were euthanized, and their brains were sliced. Glycinergic spontaneous inhibitory currents (sIPSCs) were recorded in the CeA slices. The sIPSCs from CeA neurons of CCI animals show a bimodal amplitude distribution, different from the normal distribution in Sham animals, with small and large amplitudes of similar decay constants. The perfusion of IL-1β (10 ng/mL) in these slices reduced the amplitudes within the first five minutes, with a pronounced effect on the largest amplitudes. Our data support a possible role for CeA GlyRs in pain processing and in the neuroimmune modulation of pain perception.
Collapse
Affiliation(s)
- Carolina A. Oliva
- Facultad de Educación, Universidad de Las Américas, República 71, Santiago 8370040, Chile
- Correspondence: (C.A.O.); (T.M.)
| | - Jimmy Stehberg
- Laboratorio de Neurobiología, Instituto de Ciencias Biomédicas, Facultad de Medicina y Facultad de Ciencias de la Vida, Universidad Andrés Bello, República 330, Santiago 8370186, Chile;
| | - Rafael Barra
- Centro de Investigación Biomédica y Aplicada (CIBAP), Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Av. Libertador Bernardo O’Higgins 3677, Santiago 8320000, Chile;
| | - Trinidad Mariqueo
- Laboratorio de Neurofarmacología, Centro de Investigaciones Médicas, Facultad de Medicina, Universidad de Talca, Av. Lircay S/N, Talca 3460000, Chile
- Correspondence: (C.A.O.); (T.M.)
| |
Collapse
|
42
|
Duan Y, Chen S, Li Q, Zang Y. Neuroimmune Mechanisms Underlying Neuropathic Pain: The Potential Role of TNF-α-Necroptosis Pathway. Int J Mol Sci 2022; 23:7191. [PMID: 35806192 PMCID: PMC9266916 DOI: 10.3390/ijms23137191] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
The neuroimmune mechanism underlying neuropathic pain has been extensively studied. Tumor necrosis factor-alpha (TNF-α), a key pro-inflammatory cytokine that drives cytokine storm and stimulates a cascade of other cytokines in pain-related pathways, induces and modulates neuropathic pain by facilitating peripheral (primary afferents) and central (spinal cord) sensitization. Functionally, TNF-α controls the balance between cell survival and death by inducing an inflammatory response and two programmed cell death mechanisms (apoptosis and necroptosis). Necroptosis, a novel form of programmed cell death, is receiving increasing attraction and may trigger neuroinflammation to promote neuropathic pain. Chronic pain is often accompanied by adverse pain-associated emotional reactions and cognitive disorders. Overproduction of TNF-α in supraspinal structures such as the anterior cingulate cortex (ACC) and hippocampus plays an important role in pain-associated emotional disorders and memory deficits and also participates in the modulation of pain transduction. At present, studies reporting on the role of the TNF-α–necroptosis pathway in pain-related disorders are lacking. This review indicates the important research prospects of this pathway in pain modulation based on its role in anxiety, depression and memory deficits associated with other neurodegenerative diseases. In addition, we have summarized studies related to the underlying mechanisms of neuropathic pain mediated by TNF-α and discussed the role of the TNF-α–necroptosis pathway in detail, which may represent an avenue for future therapeutic intervention.
Collapse
|
43
|
Chae Y, Park HJ, Lee IS. Pain modalities in the body and brain: Current knowledge and future perspectives. Neurosci Biobehav Rev 2022; 139:104744. [PMID: 35716877 DOI: 10.1016/j.neubiorev.2022.104744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/29/2022] [Accepted: 06/11/2022] [Indexed: 11/16/2022]
Abstract
Development and validation of pain biomarkers has become a major issue in pain research. Recent advances in multimodal data acquisition have allowed researchers to gather multivariate and multilevel whole-body measurements in patients with pain conditions, and data analysis techniques such as machine learning have led to novel findings in neural biomarkers for pain. Most studies have focused on the development of a biomarker to predict the severity of pain with high precision and high specificity, however, a similar approach to discriminate different modalities of pain is lacking. Identification of more accurate and specific pain biomarkers will require an in-depth understanding of the modality specificity of pain. In this review, we summarize early and recent findings on the modality specificity of pain in the brain, with a focus on distinct neural activity patterns between chronic clinical and acute experimental pain, direct, social, and vicarious pain, and somatic and visceral pain. We also suggest future directions to improve our current strategy of pain management using our knowledge of modality-specific aspects of pain.
Collapse
Affiliation(s)
- Younbyoung Chae
- College of Korean Medicine, Kyung Hee University, Seoul, the Republic of Korea; Acupuncture & Meridian Science Research Center, Kyung Hee University, Seoul, the Republic of Korea
| | - Hi-Joon Park
- College of Korean Medicine, Kyung Hee University, Seoul, the Republic of Korea; Acupuncture & Meridian Science Research Center, Kyung Hee University, Seoul, the Republic of Korea
| | - In-Seon Lee
- College of Korean Medicine, Kyung Hee University, Seoul, the Republic of Korea; Acupuncture & Meridian Science Research Center, Kyung Hee University, Seoul, the Republic of Korea.
| |
Collapse
|
44
|
Tang Y, Liu C, Zhu T, Chen H, Sun Y, Zhang X, Zhao Q, Wu J, Fei X, Ye S, Chen C. Transcriptome Profiles of IncRNA and mRNA Highlight the Role of Ferroptosis in Chronic Neuropathic Pain With Memory Impairment. Front Cell Dev Biol 2022; 10:843297. [PMID: 35547819 PMCID: PMC9082550 DOI: 10.3389/fcell.2022.843297] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 03/21/2022] [Indexed: 02/05/2023] Open
Abstract
Background: Chronic neuropathic pain is commonly associated with memory loss, which increases the risk of dementia, lowers life quality and spending. On the other hand, the molecular processes are unknown, and effective therapies have yet to be discovered. Long non-coding RNAs (lncRNAs) are emerging potential therapeutic targets for chronic pain, but their role in chronic pain-induced memory impairment is unknown. Methods: We established a CCI-induced memory impairment rat model. To investigate and validate the gene expression alterations in the hippocampus of CCI-induced memory impairment, we used RNA-Seq, bioinformatics analysis, qRT-PCR, western blot, immunostaining, Nissl staining, and Diaminobenzidine-enhanced Perls' stain. Results: CCI rats displayed long-term memory deficits in the Y maze and novel objective recognition tests, and chronic mechanical and thermal pain hypersensitivity in the hind paws. We found a total of 179 differentially expressed mRNAs (DEmRNAs) (81 downregulated and 98 upregulated) and 191 differentially expressed long noncoding RNAs (DElncRNAs) (87 downregulated and 105 upregulated) between the hippocampus CA1 of CCI-induced memory impairment model and the sham control, using RNA-Seq expression profiles. The most enriched pathways involving oxidation and iron metabolism were explored using a route and function pathway analysis of DEmRNAs and DElncRNAs. We also discovered that ATF3 was considerably overexpressed in the hippocampal CA1 area, and gene markers of ferroptosis, such as GPX4, SLC7A11, SLC1A5, and PTGS2, were dysregulated in the CCI-induced memory impairment paradigm. Furthermore, in the hippocampus CA1 of CCI-induced memory impairment, lipid peroxidation and iron overload were considerably enhanced. Fer-1 treatment reversed ferroptosis damage of CCI with memory impairment model. Finally, in CCI-induced memory impairment, a competing RNA network analysis of DElncRNAs and DEmRNAs was performed to investigate the putative regulatory link of DElncRNAs on DEmRNAs via miRNA sponging. Conclusion: Using RNA-Seq, we created a genome-wide profile of the whole hippocampus of a rat model of CCI-induced memory impairment. In the hippocampus, pathways and function analyses revealed numerous intriguing genes and pathways involved in ferroptosis and memory impairment in response to chronic pain stress. As a result, our research may aid in the identification of potential and effective treatments for CCI-induced memory impairment.
Collapse
Affiliation(s)
- Yidan Tang
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Changliang Liu
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Tao Zhu
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Hai Chen
- Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yalan Sun
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Xueying Zhang
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Qi Zhao
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Jiahui Wu
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| | - Xuejie Fei
- Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Shixin Ye
- Unité INSERM U1195, Hôpital de Bicêtre, Le Kremlin-Bicêtre, Université Paris-Saclay, Paris, France
| | - Chan Chen
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, The Research Units of West China, Chinese Academy of Medical Science, Sichuan University, Chengdu, China
| |
Collapse
|
45
|
Rouch I, Edjolo A, Laurent B, Dartigues JF, Amieva H. Chronic pain and long-term dementia risk in older adults: Results from a 24-year longitudinal study. Int J Geriatr Psychiatry 2022; 37. [PMID: 35434855 DOI: 10.1002/gps.5713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 03/13/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Chronic pain (CP) was associated with cognitive impairment in previous studies. However, the longitudinal association between CP and dementia remains under debate. We aimed to assess the prospective link between CP and long-term dementia risk in a population-based cohort of older participants, considering covariables linked to CP and cognitive functioning. METHODS The study sample was selected from the PAQUID study, an ongoing cohort of older community-dwellers aged 65 years and over at baseline; Information regarding CP and analgesics consumption was collected using questionnaires. Dementia was clinically assessed every 2 years. The population was divided into 4 groups according to CP and analgesic drugs intake (CP+/A+, CP+/A-, CP-/A+, CP-/A-). An illness-death model was used to estimate the link between CP and incident dementia risk controlled for sex, educational level, comorbidities, depression, antidepressant drugs and analgesics. RESULTS Five hundred ninety three participants (364 women) who completed a CP questionnaire, were included. They were followed-up over 24 years (mean follow-up: 11.3 years, SD 7.3). A total of 223 participants (32.5%) had CP, among them 88 (38.6%) took analgesic drugs. Compared to CP-/A- group, CP+/A+ participants had a higher risk of developing dementia in the univariate model (hazard ratio (HR) = 1.73, 95%CI:1.18-2.56; p = 0.0051). However, these results did not persist in the multivariate models (aHR = 1.23, 95%CI:0.88-1.73; p = 0.23). No significant risk for dementia were observed in CP-/A+ and CP+/A- (HR = 1.30, 95%CI:0.84-2.01; p = 0.23 and HR = 1.36, 95%CI:0.95-1.96; p = 0.09, respectively). CONCLUSION Our results failed to show a significant relationship between the presence of CP and long-term dementia risk, suggesting that the cognitive decline associated with CP observed in the literature does not appear to be related to Alzheimer's disease or related disorders.
Collapse
Affiliation(s)
- Isabelle Rouch
- Memory Clinical and Research Center of Saint Etienne (CMRR), Neurology Unit, University Hospital of Saint Etienne, Saint Etienne, France
- INSERM, U1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Arlette Edjolo
- Memory Clinical and Research Center of Saint Etienne (CMRR), Neurology Unit, University Hospital of Saint Etienne, Saint Etienne, France
- INSERM, U1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Bernard Laurent
- Memory Clinical and Research Center of Saint Etienne (CMRR), Neurology Unit, University Hospital of Saint Etienne, Saint Etienne, France
- INSERM, U1028; CNRS, UMR5292; Neuropain Team, Lyon Neuroscience Research Center, Lyon, France
| | | | - Hélène Amieva
- INSERM, U1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| |
Collapse
|
46
|
Esopenko C, de Souza NL, Jia Y, Parrott JS, Merkley TL, Dennis EL, Hillary FG, Velez C, Cooper DB, Kennedy J, Lewis J, York G, Menefee DS, McCauley SR, Bowles AO, Wilde EA, Tate DF. Latent Neuropsychological Profiles to Discriminate Mild Traumatic Brain Injury and Posttraumatic Stress Disorder in Active-Duty Service Members. J Head Trauma Rehabil 2022. [PMID: 35452025 DOI: 10.1097/HTR.0000000000000779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine whether cognitive and psychological symptom profiles differentiate clinical diagnostic classifications (eg, history of mild traumatic brain injury [mTBI] and posttraumatic stress disorder [PTSD]) in military personnel. METHODS US Active-Duty Service Members (N = 209, 89% male) with a history of mTBI (n = 56), current PTSD (n = 23), combined mTBI + PTSD (n = 70), or orthopedic injury controls (n = 60) completed a neuropsychological battery assessing cognitive and psychological functioning. Latent profile analysis was performed to determine how neuropsychological outcomes of individuals clustered together. Diagnostic classifications (ie, mTBI, PTSD, mTBI + PTSD, and orthopedic injury controls) within each symptom profile were examined. RESULTS A 5-profile model had the best fit. The profiles differentiated subgroups with high (34.0%) or normal (21.5%) cognitive and psychological functioning, cognitive symptoms (19.1%), psychological symptoms (15.3%), and combined cognitive and psychological symptoms (10.0%). The symptom profiles differentiated participants as would generally be expected. Participants with PTSD were mainly represented in the psychological symptom subgroup, while orthopedic injury controls were mainly represented in the high-functioning subgroup. Further, approximately 79% of participants with comorbid mTBI and PTSD were represented in a symptomatic group (∼24% = cognitive symptoms, ∼29% = psychological symptoms, and 26% = combined cognitive/psychological symptoms). Our results also showed that approximately 70% of military personnel with a history of mTBI were represented in the high- and normal-functioning groups. CONCLUSIONS These results demonstrate both overlapping and heterogeneous symptom and performance profiles in military personnel with a history of mTBI, PTSD, and/or mTBI + PTSD. The overlapping profiles may underscore why these diagnoses are often difficult to diagnose and treat, but suggest that advanced statistical models may aid in identifying profiles representing symptom and cognitive performance impairments within patient groups and enable identification of more effective treatment targets.
Collapse
|
47
|
Ibrahim ME, Hefny MA. Central sensitization and adult attention deficit hyperactivity disorder in medical students with chronic back pain: a cross-sectional study. Egypt Rheumatol Rehabil 2022. [DOI: 10.1186/s43166-022-00124-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Chronic back pain is a common health complaint among university students. A subset of chronic back pain patients suffer from increased pain sensitivity, a process termed central sensitization. Chronic pain is also associated with cognitive dysfunction, involving attention, memory, and learning. Those are key features of adult attention deficit hyperactivity disorder. This study aimed to assess the associations between adult attention deficit hyperactivity disorder and central sensitization in students with chronic back pain.
Results
Two hundred twenty-seven students completed the survey, and 90 (39.6%) had back pain for more than 3 months. Students with back pain had significantly higher central sensitization (P<0.01) and higher attention deficit scores (P=0.05). Significant positive correlations were found between scores of the two questionnaires (r= 0.55, P<0.01). Regression analysis adjusted for age and gender showed that higher attention deficit scores were associated with back pain (odd’s ratio:1.025, P=0.05). The odd’s ratio was attenuated after adding central sensitization to the model (odd’s ratio: 0.99, P=0.70).
Conclusions
The findings of this study suggest that attention deficit hyperactivity disorder is associated with elevated central sensitization in patients with chronic back pain. Our results support the hypothesis that central sensitization mediates the effect of attention deficit on back pain.
Collapse
|
48
|
Brown MR, Personius KE, Langan J. Participants with mildly-disabling chronic neck pain perform differently during explicit compared to implicit motor learning of a reaching task. PLoS One 2022; 17:e0266508. [PMID: 35390088 PMCID: PMC8989223 DOI: 10.1371/journal.pone.0266508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 03/22/2022] [Indexed: 12/04/2022] Open
Abstract
Chronic musculoskeletal (CMSK) pain associated with musculoskeletal disorders like low back pain or neck pain are the leading causes of disability. While CMSK pain has the potential to negatively influence motor learning, there is limited research to understand the impact of CMSK on motor learning. In order to examine differences in motor learning between individuals with and without CMSK we modified a serial reaction time task to assess motor learning of a repetitive reaching task. The paradigm was used to assess both explicit and implicit motor learning. In a cross-sectional study design, seventeen participants with chronic neck pain (CNP) (5 males) and 21 controls (8 males) were recruited. In addition, physical, cognitive, sensorimotor, disability and pain assessments were used to examine differences between individuals with and without CNP. All participants with CNP were categorized as having mild disability. There was no difference in cognitive assessments and minimal differences in physical measures between groups. Examining motor learning, groups with and without CNP demonstrated similar outcomes in both explicit and implicit motor learning. There was one notable performance difference between groups in the reaching task, the group with CNP demonstrated slower reaching movements outward and inward during blocks without explicit information. This may suggest a cautious approach to movement with reduced explicit information. Findings from this study provide insight on motor learning in individuals with mildly-disabling CNP, further research is necessary to examine how instruction can impact peak performance in people with CMSK pain.
Collapse
Affiliation(s)
- Michael R. Brown
- Rehabilitation Science Department, School of Public Health and Health Professions, University at Buffalo SUNY, Buffalo, New York, United States of America
- * E-mail:
| | - Kirkwood E. Personius
- Rehabilitation Science Department, School of Public Health and Health Professions, University at Buffalo SUNY, Buffalo, New York, United States of America
| | - Jeanne Langan
- Rehabilitation Science Department, School of Public Health and Health Professions, University at Buffalo SUNY, Buffalo, New York, United States of America
| |
Collapse
|
49
|
Adamczyk AK, Wyczesany M, van Peer JM. High working memory load impairs reappraisal but facilitates distraction – an Event-Related Potential investigation. Biol Psychol 2022. [DOI: 10.1016/j.biopsycho.2022.108327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 12/23/2022]
|
50
|
Sambuco N, Mickle AM, Garvan C, Cardoso J, Johnson AJ, Kusko DA, Addison A, Glover TL, Staud R, Redden D, Goodin B, Fillingim RB, Sibille KT. Vulnerable Dispositional Traits and Chronic Pain: Predisposing but not Predetermining. J Pain 2022; 23:693-705. [PMID: 34856411 DOI: 10.1016/j.jpain.2021.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/08/2021] [Accepted: 11/17/2021] [Indexed: 01/13/2023]
Abstract
Dispositional traits can be protective or contribute to increased vulnerability in individuals with chronic pain. This study aims to evaluate the association between two dispositional trait measures, affect balance style and multi-domain trait groups, with psychosocial measures, clinical pain, functional pain, and experimental pain at two years in individuals with chronic knee pain. The study is a prospective analysis of 168 community dwelling individuals aged 45 to 85 years old with knee pain with or at risk for knee osteoarthritis. At baseline, affect balance style and multi-domain trait groups were associated with psychosocial measures, clinical pain, and functional status. At the two-year time point, the multi-domain trait groups were associated with the clinical pain measures. Interestingly, individuals with previously demonstrated vulnerable traits showed more variability in dispositional trait status at the two-year time point compared to those with dispositional traits previously demonstrated as more protective. Findings reiterate that dispositional traits are predisposing but are not predetermining regarding pain-related experiences. PERSPECTIVE: Vulnerable and protective dispositional traits are positively and negatively associated with clinical pain and functional limitations respectively. Although considered relatively stable, a 30-50% shift in dispositional traits was indicated over a two-year period. Findings highlight that dispositional trait are modifiable and thus, predisposing but not predetermining for persisting chronic pain.
Collapse
Affiliation(s)
- Nicola Sambuco
- College of Public Health and Health Professions, Department of Clinical and Health Psychology, University of Florida, Gainesville, Florida.
| | - Angela M Mickle
- College of Dentistry, Community Dentistry and Behavioral Science, University of Florida, Gainesville, Florida; College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida
| | - Cynthia Garvan
- College of Medicine, Anesthesiology, University of Florida, Gainesville, Florida
| | - Josue Cardoso
- College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida
| | - Alisa J Johnson
- College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida
| | - Daniel A Kusko
- College of Arts and Science, Psychology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Adriana Addison
- College of Arts and Science, Psychology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Toni L Glover
- School of Nursing, Oakland University, Rochester, Michigan
| | - Roland Staud
- College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida; College of Medicine, Rheumatology, University of Florida, Gainesville, Florida
| | - David Redden
- College of Medicine, Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Burel Goodin
- College of Arts and Science, Psychology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Roger B Fillingim
- College of Dentistry, Community Dentistry and Behavioral Science, University of Florida, Gainesville, Florida; College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida
| | - Kimberly T Sibille
- College of Dentistry, Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida; College of Medicine, Anesthesiology, University of Florida, Gainesville, Florida; College of Medicine, Aging and Geriatric Research, University of Florida, Gainesville, Florida
| |
Collapse
|