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Outputs (106)

The rat Osteoarthritis Bone Score: a new histological system for scoring subchondral pathology in rat knees analogous to histological correlates of human OA bone marrow lesions (2024)
Journal Article

Purpose (the aim of the study): Bone marrow lesions (BMLs) are detected by MRI in the in human osteoarthritis (OA) subchondral bone and associated with pain. We previously described 7 histological features associated with BMLs from which we developed... Read More about The rat Osteoarthritis Bone Score: a new histological system for scoring subchondral pathology in rat knees analogous to histological correlates of human OA bone marrow lesions.

The association of painful and non-painful morbidities with frailty: a cross sectional analysis of a cohort of community dwelling older people in England (2024)
Journal Article

Introduction The association between chronic pain and frailty might indicate that pain is an independent driver of frailty but might alternatively be explained by inclusion within frailty identification tools of morbidities that commonly lead to chr... Read More about The association of painful and non-painful morbidities with frailty: a cross sectional analysis of a cohort of community dwelling older people in England.

The interrater and test–retest reliability of 3 modalities of quantitative sensory testing in healthy adults and people with chronic low back pain or rheumatoid arthritis (2023)
Journal Article

Introduction: Quantitative Sensory Testing (QST) modalities used to assess central pain mechanisms require different protocols in people with different musculoskeletal conditions. Objectives: We aimed to explore the possible effects of musculo... Read More about The interrater and test–retest reliability of 3 modalities of quantitative sensory testing in healthy adults and people with chronic low back pain or rheumatoid arthritis.

The Web-Based Pain-at-Work Toolkit With Telephone Support for Employees With Chronic or Persistent Pain: Protocol for a Cluster Randomized Feasibility Trial (2023)
Journal Article

Background: Chronic or persistent pain affects people’s ability to work or be productive at work, generating high societal and economic burden. However, the provision of work-related advice and support for people with chronic pain is variable or lack... Read More about The Web-Based Pain-at-Work Toolkit With Telephone Support for Employees With Chronic or Persistent Pain: Protocol for a Cluster Randomized Feasibility Trial.

Associations of Muscle Strength with Central Aspects of Pain: Data from the Knee Pain and Related Health in the Community (KPIC) Cohort (2023)
Journal Article

Knee pain is associated with lower muscle strength, and both contribute to disability. Peripheral and central neurological mechanisms contribute to OA pain. Understanding the relative contributions of pain mechanisms to muscle strength might help fut... Read More about Associations of Muscle Strength with Central Aspects of Pain: Data from the Knee Pain and Related Health in the Community (KPIC) Cohort.

Association between pain intensity and depressive symptoms in community-dwelling adults: longitudinal findings from the Survey of Health, Ageing and Retirement in Europe (SHARE) (2023)
Journal Article

Purpose To investigate the longitudinal associations between pain and depressive symptoms in adults. Methods Prospective cohort study on data from 28,515 community-dwelling adults ≥ 50 years, free from depression at baseline (Wave 5), with follo... Read More about Association between pain intensity and depressive symptoms in community-dwelling adults: longitudinal findings from the Survey of Health, Ageing and Retirement in Europe (SHARE).

Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data (2023)
Journal Article

Objective: Despite the prevalence of osteoarthritis (OA) in England, few studies have examined the health economic impact of chronic pain associated with OA. The aim of this study was to compare outcomes in patients with moderate-to-severe chronic pa... Read More about Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data.

The bidirectional relationship between chronic joint pain and frailty: data from the Investigating Musculoskeletal Health and Wellbeing cohort (2023)
Journal Article

Background: Pain and frailty are associated, but this relationship is insufficiently understood. We aimed to test whether there is a unidirectional or bidirectional relationship between joint pain and frailty. Methods: Data were from Investigating Mu... Read More about The bidirectional relationship between chronic joint pain and frailty: data from the Investigating Musculoskeletal Health and Wellbeing cohort.

P073 Comparative effectiveness of different exercise interventions on central sensitisation indices in humans: A systematic review and network meta-analysis (2023)
Journal Article

Background/Aims Exercise has shown a promising effect in reducing central sensitisation (CS), but it is unknown which exercise type is the most effective. This review aimed to rank and compare the effectiveness of different exercise interventions o... Read More about P073 Comparative effectiveness of different exercise interventions on central sensitisation indices in humans: A systematic review and network meta-analysis.

Inflammatory and Noninflammatory Disease Activity in Rheumatoid Arthritis: The Effect of Pain on Personalized Medicine (2023)
Journal Article

Disease activity in rheumatoid arthritis (RA) is often described in terms of inflammation, although noninflammatory mechanisms are also integral to the disease. Pain is the most important symptom for many people with RA, and is therefore a key compo... Read More about Inflammatory and Noninflammatory Disease Activity in Rheumatoid Arthritis: The Effect of Pain on Personalized Medicine.

How people with knee pain understand why their pain changes or remains the same over time: A qualitative study (2023)
Journal Article

Objectives Guidelines recommend knee osteoarthritis pain management based on biopsychosocial mechanisms. Treatment adherence and effectiveness may be affected if there is a mismatch between patient perspectives and treatment focus. We therefore exam... Read More about How people with knee pain understand why their pain changes or remains the same over time: A qualitative study.

Chronic pain in people living with dementia: challenges to recognising and managing pain, and personalising intervention by phenotype (2023)
Journal Article

Pain is common in people with dementia, and pain can exacerbate the behavioural and psychological symptoms of dementia. Effective pain management is challenging, not least in people with dementia. Impairments of cognition, communication and abstract... Read More about Chronic pain in people living with dementia: challenges to recognising and managing pain, and personalising intervention by phenotype.

Influence of Social Support, Financial Status, and Lifestyle on the Disparity Between Inflammation and Disability in Rheumatoid Arthritis (2022)
Journal Article

Objective: To investigate how social support, financial status, and lifestyle influence the development of excess disability in rheumatoid arthritis (RA). Methods: Data were obtained from the Étude et Suivi des Polyarthrites Indifférenciées Récentes... Read More about Influence of Social Support, Financial Status, and Lifestyle on the Disparity Between Inflammation and Disability in Rheumatoid Arthritis.

Medio-dorsal thalamic dysconnectivity in chronic knee pain: A possible mechanism for negative affect and pain comorbidity (2022)
Journal Article

The reciprocal interaction between pain and negative affect is acknowledged but pain-related alterations in brain circuits involved in this interaction, such as the mediodorsal thalamus (MDThal), still require a better understanding. We sought to inv... Read More about Medio-dorsal thalamic dysconnectivity in chronic knee pain: A possible mechanism for negative affect and pain comorbidity.

Harmonising knee pain patient-reported outcomes: a systematic literature review and meta-analysis of Patient Acceptable Symptom State (PASS) and individual participant data (IPD) (2022)
Journal Article

Objective: In order to facilitate data pooling between studies, we explored harmonisation of patient-reported outcome measures (PROMs) in people with knee pain due to osteoarthritis or knee trauma, using the Patient Acceptable Symptom State scores (P... Read More about Harmonising knee pain patient-reported outcomes: a systematic literature review and meta-analysis of Patient Acceptable Symptom State (PASS) and individual participant data (IPD).

Exploring the disparity between inflammation and disability in the 10-year outcomes of people with rheumatoid arthritis (2022)
Journal Article

OBJECTIVES: To identify groups of people with RA with different disability trajectories over 10 years, despite comparable levels of inflammation. METHODS: Data for this analysis came from three European prospective cohort studies of people with RA [N... Read More about Exploring the disparity between inflammation and disability in the 10-year outcomes of people with rheumatoid arthritis.

Acceptability of a nurse-led non-pharmacological complex intervention for knee pain: Nurse and patient views and experiences (2022)
Journal Article

Objectives The overall purpose of this research programme is to develop and test the feasibility of a complex intervention for knee pain delivered by a nurse, and comprising both non-pharmacological and pharmacological interventions. In this first ph... Read More about Acceptability of a nurse-led non-pharmacological complex intervention for knee pain: Nurse and patient views and experiences.

Comorbidities and use of analgesics in people with knee pain: a study in the Nottingham Knee Pain and Health in the Community (KPIC) cohort (2022)
Journal Article

Objectives: The aims were to examine the prevalence of comorbidities and role of oral analgesic use in people with knee pain (KP) compared with those without. Methods: The Knee Pain and related health In the Community (KPIC) cohort comprises communit... Read More about Comorbidities and use of analgesics in people with knee pain: a study in the Nottingham Knee Pain and Health in the Community (KPIC) cohort.

Different genes may be involved in distal and local sensitization: A genome‐wide gene‐based association study and meta‐analysis (2021)
Journal Article

Background: Neuropathic pain symptoms and signs of increased pain sensitization in osteoarthritis (OA) patients may explain persistent pain after total joint replacement (TJR). Therefore, identifying genetic markers associated with pain sensitization... Read More about Different genes may be involved in distal and local sensitization: A genome‐wide gene‐based association study and meta‐analysis.

Anxiety enhances pain in a model of osteoarthritis and is associated with altered endogenous opioid function and reduced opioid analgesia (2021)
Journal Article

Introduction: Negative affect, including anxiety and depression, is prevalent in chronic pain states such as osteoarthritis (OA) and associated with greater use of opioid analgesics, potentially contributing to present and future opioid crises.... Read More about Anxiety enhances pain in a model of osteoarthritis and is associated with altered endogenous opioid function and reduced opioid analgesia.

Identifying multiple knee pain trajectories and the prediction of opioid and NSAID medication used: A latent class growth approach (2021)
Journal Article

Background: Knee pain is a major source of distress and disability, with pain progression highly variable between individuals. Previous studies defining pain trajectories have all used a single measure of pain, and these differ across studies. Differ... Read More about Identifying multiple knee pain trajectories and the prediction of opioid and NSAID medication used: A latent class growth approach.

The efficacy of systemic glucocorticosteroids for pain in rheumatoid arthritis: a systematic literature review and meta-analysis (2021)
Journal Article

Objectives: Glucocorticosteroids (GCs) are recommended to suppress inflammation in people with active RA. This systematic review and meta-analysis aimed to quantify the effects of systemic GCs on RA pain. Methods: A systematic literature review of ra... Read More about The efficacy of systemic glucocorticosteroids for pain in rheumatoid arthritis: a systematic literature review and meta-analysis.

Central Aspects of Pain in Rheumatoid Arthritis (CAP-RA): protocol for a prospective observational study (2021)
Journal Article

Background: Pain and fatigue are persistent problems in people with rheumatoid arthritis. Central sensitisation (CS) may contribute to pain and fatigue, even when treatment has controlled inflammatory disease. This study aims to validate a self-repor... Read More about Central Aspects of Pain in Rheumatoid Arthritis (CAP-RA): protocol for a prospective observational study.

The Central Aspects of Pain in the Knee (CAP-Knee) questionnaire; a mixed-methods study of a self-report instrument for assessing central mechanisms in people with knee pain (2021)
Journal Article

OBJECTIVES: Pain is the prevailing symptom of knee osteoarthritis. Central sensitisation creates discordance between pain and joint pathology. We previously reported a central pain mechanisms trait derived from 8 discrete characteristics: neuropathic... Read More about The Central Aspects of Pain in the Knee (CAP-Knee) questionnaire; a mixed-methods study of a self-report instrument for assessing central mechanisms in people with knee pain.

Association of subchondral bone marrow lesion localization with weight-bearing pain in people with knee osteoarthritis: data from the Osteoarthritis Initiative (2021)
Journal Article

© 2021, The Author(s). Background: Subchondral bone marrow lesions (BMLs) detected on MRI in knee osteoarthritis (OA) are associated with knee pain. The prevalence and progression of subchondral BMLs are increased by mechanical knee load. However, as... Read More about Association of subchondral bone marrow lesion localization with weight-bearing pain in people with knee osteoarthritis: data from the Osteoarthritis Initiative.

Individual responses to topical ibuprofen gel or capsaicin cream for painful knee osteoarthritis: a series of n-of-1 trials (2020)
Journal Article

OBJECTIVES: To determine individual responses to ibuprofen gel or capsaicin cream for painful, radiographic knee OA using a series of n-of-1 trials. METHODS: Twenty-two participants were allocated 5% ibuprofen gel (A) and 0.025% capsaicin cream (B) i... Read More about Individual responses to topical ibuprofen gel or capsaicin cream for painful knee osteoarthritis: a series of n-of-1 trials.

The East Midlands Knee Pain Multiple Randomised Controlled Trial Cohort Study: Cohort Establishment and Feasibility study protocol (2020)
Journal Article

Introduction: Knee pain and osteoarthritis (OA) are a common cause of disability. The UK National Institute of Health and Care Excellence (NICE) OA guidelines recommend education, exercise and weight-loss advice (if overweight) as core interventions... Read More about The East Midlands Knee Pain Multiple Randomised Controlled Trial Cohort Study: Cohort Establishment and Feasibility study protocol.

East Midlands knee pain multiple randomised controlled trial cohort study: cohort establishment and feasibility study protocol (2020)
Journal Article

© 2020 BMJ Open Introduction Knee pain due to osteoarthritis (OA) is a common cause of disability. The UK National Institute for Health and Care Excellence OA guidelines recommend education, exercise and weight loss advice (if overweight) as core int... Read More about East Midlands knee pain multiple randomised controlled trial cohort study: cohort establishment and feasibility study protocol.

Predicting response to topical non-steroidal anti-inflammatory drugs in osteoarthritis: an individual patient data meta-analysis of randomized controlled trials (2020)
Journal Article

© The Author(s) 2020. Published by Oxford University Press on behalf of the British Society for Rheumatology. OBJECTIVES: To identify predictors of the specific (difference between treatment and placebo) and overall (change from baseline in treat... Read More about Predicting response to topical non-steroidal anti-inflammatory drugs in osteoarthritis: an individual patient data meta-analysis of randomized controlled trials.

Brain perfusion patterns are altered in chronic knee pain: a spatial covariance analysis of arterial spin labelling MRI (2020)
Journal Article

Chronic musculoskeletal pain is a common problem globally. Current evidence suggests that maladapted central pain pathways are associated with pain chronicity, for example, in postoperative pain after knee replacement. Other factors such as low mood,... Read More about Brain perfusion patterns are altered in chronic knee pain: a spatial covariance analysis of arterial spin labelling MRI.

Baseline self-report ‘central mechanisms’ trait predicts persistent knee pain in the Knee Pain in the Community (KPIC) cohort (2019)
Journal Article

© 2019 The Authors Objectives: We investigated whether baseline scores for a self-report trait linked to central mechanisms predict 1 year pain outcomes in the Knee Pain in the Community cohort. METHOD: 1471 participants reported knee pain at baselin... Read More about Baseline self-report ‘central mechanisms’ trait predicts persistent knee pain in the Knee Pain in the Community (KPIC) cohort.

Baseline self-report ‘central mechanisms’ trait predicts persistent knee pain in the Knee Pain in the Community (KPIC) cohort (2019)
Journal Article

Objectives We investigated whether baseline scores for a self-report trait linked to central mechanisms predict 1 year pain outcomes in the Knee Pain in the Community cohort. Method 1471 participants reported knee pain at baseline and respon... Read More about Baseline self-report ‘central mechanisms’ trait predicts persistent knee pain in the Knee Pain in the Community (KPIC) cohort.

Disease Activity Flares and Pain Flares in an early rheumatoid arthritis inception cohort; characteristics, antecedents and sequelae (2019)
Journal Article

Background RA flares are common and disabling. They are described in terms of worsening inflammation but pain and inflammation are often discordant. To inform treatment decisions, we investigated whether inflammatory and pain flares are discrete ent... Read More about Disease Activity Flares and Pain Flares in an early rheumatoid arthritis inception cohort; characteristics, antecedents and sequelae.

Disease Activity Flares and Pain Flares in an early rheumatoid arthritis inception cohort; characteristics, antecedants and sequelae (2019)
Presentation / Conference

Background RA flares are common and disabling. They are described in terms of worsening pain, swelling, or other symptoms. We aimed to determine characteristics, antecedants and sequelae of painful and inflammatory flare subtypes during the first 11... Read More about Disease Activity Flares and Pain Flares in an early rheumatoid arthritis inception cohort; characteristics, antecedants and sequelae.

Quantitative sensory testing and predicting outcomes for musculoskeletal pain, disability, and negative affect: a systematic review and meta-analysis (2019)
Journal Article

Hypersensitivity due to central pain mechanisms can influence recovery and lead to worse clinical outcomes, but the ability of quantitative sensory testing (QST), an index of sensitisation, to predict outcomes in chronic musculoskeletal disorders rem... Read More about Quantitative sensory testing and predicting outcomes for musculoskeletal pain, disability, and negative affect: a systematic review and meta-analysis.

The polyadenylation inhibitor cordycepin reduces pain, inflammation and joint pathology in rodent models of osteoarthritis (2019)
Journal Article

Clinically, osteoarthritis (OA) pain is significantly associated with synovial inflammation. Identification of the mechanisms driving inflammation could reveal new targets to relieve this prevalent pain state. Herein, a role of polyadenylation in OA... Read More about The polyadenylation inhibitor cordycepin reduces pain, inflammation and joint pathology in rodent models of osteoarthritis.

Discrete trajectories of resolving and persistent pain in people with rheumatoid arthritis despite undergoing treatment for inflammation: results from three UK cohorts (2019)
Journal Article

Rheumatoid arthritis (RA) is an example of human chronic inflammatory pain. Modern treatments suppress inflammation, yet pain remains a major problem for many people with RA. We hypothesised that discrete RA subgroups might display favourable or unfa... Read More about Discrete trajectories of resolving and persistent pain in people with rheumatoid arthritis despite undergoing treatment for inflammation: results from three UK cohorts.

Molecular expression patterns in the synovium and their association with advanced symptomatic knee osteoarthritis (2018)
Journal Article

Objective: Osteoarthritis (OA) is a major source of knee pain. Mechanisms of OA knee pain are incompletely understood but include synovial pathology. We aimed to identify molecular expression patterns in the synovium associated with symptomatic knee... Read More about Molecular expression patterns in the synovium and their association with advanced symptomatic knee osteoarthritis.

Thresholds of ultrasound synovial abnormalities for knee osteoarthritis: a cross sectional study in the general population (2018)
Journal Article

Objective To establish “normal” ranges for synovial thickness and effusion detected by ultrasound (US) and to determine cut-offs associated with knee pain (KP) and radiographic knee osteoarthritis (RKOA) in the community. Methods 147 women a... Read More about Thresholds of ultrasound synovial abnormalities for knee osteoarthritis: a cross sectional study in the general population.

Analgesic effects of the cathepsin K inhibitor L-006235 in the monosodium iodoacetate model of osteoarthritis pain (2018)
Journal Article

© 2018 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The International Association for the Study of Pain. Introduction: The mounting evidence that osteoclasts play an important role in osteoarthritis (OA) pain lead us to invest... Read More about Analgesic effects of the cathepsin K inhibitor L-006235 in the monosodium iodoacetate model of osteoarthritis pain.

Neuropathic-like knee pain and associated risk factors: a cross-sectional study in a UK community sample (2018)
Journal Article

Background Neuropathic-like knee pain (NKP) is often reported in individuals with knee pain (KP), but the contribution of specific central and peripheral risk factors to NKP has not been studied previously. The aims of the present study were to de... Read More about Neuropathic-like knee pain and associated risk factors: a cross-sectional study in a UK community sample.

Contribution of central and peripheral risk factors to prevalence, incidence and progression of knee pain: a community-based cohort study (2018)
Journal Article

Aim To explore risk factors that may influence knee pain (KP) through central or peripheral mechanisms. Methods A questionnaire-based prospective community cohort study with KP defined as pain in or around a knee on most days for at least a... Read More about Contribution of central and peripheral risk factors to prevalence, incidence and progression of knee pain: a community-based cohort study.

Prediction of persistent knee pain by pressure pain detection thresholds: results from the Knee Pain In the Community cohort (KPIC) (2018)
Conference Proceeding

Background: Knee pain results from a combination of nociceptive input from the joint, and processing by the central nervous system. Pressure pain detection thresholds (PPTs) are lower and pain is more severe in people with greater central sensitisat... Read More about Prediction of persistent knee pain by pressure pain detection thresholds: results from the Knee Pain In the Community cohort (KPIC).

Bidirectional association between disturbed sleep and neuropathic pain symptoms: a prospective cohort study in post-total joint replacement participants (2018)
Journal Article

Disturbed sleep is strongly correlated with chronic pain. The aim of this study was to examine the association between sleep disturbance and incident joint pain focusing on neuropathic pain-like symptoms. 423 individuals who had undergone total joint... Read More about Bidirectional association between disturbed sleep and neuropathic pain symptoms: a prospective cohort study in post-total joint replacement participants.

General and disease-specific pain trajectories as predictors of social and political outcomes in arthritis and cancer (2018)
Journal Article

Background: While the heterogeniety of pain progression has been studied in chronic diseases, it is unclear the extent to which patterns of pain progression among people in general as well as across different diseases impacts on social, civic and po... Read More about General and disease-specific pain trajectories as predictors of social and political outcomes in arthritis and cancer.

Interpretation of DAS28 and its components in the assessment of inflammatory and non-inflammatory aspects of rheumatoid arthritis (2018)
Journal Article

Background: DAS28 is interpreted as the inflammatory disease activity of RA. Non-inflammatory pain mechanisms can confound assessment. We aimed to examine the use of DAS28 components or DAS28-derived measures that have been published as indices of no... Read More about Interpretation of DAS28 and its components in the assessment of inflammatory and non-inflammatory aspects of rheumatoid arthritis.

Home-based pre-surgical psychological intervention for knee osteoarthritis (HAPPiKNEES): a feasibility randomised controlled trial (2018)
Journal Article

Objective: To determine the feasibility of conducting a trial of a pre-surgical psychological intervention on pain, function, and mood in people with knee osteoarthritis listed for total knee arthroplasty. Design: Multi-centre, mixed-methods feasibi... Read More about Home-based pre-surgical psychological intervention for knee osteoarthritis (HAPPiKNEES): a feasibility randomised controlled trial.

Association between ultrasound-detected synovitis and knee pain: a population-based case-control study with both cross-sectional and follow-up data (2017)
Journal Article

Background: Recently an important role for synovial pathology in the initiation and progression of knee osteoarthritis (OA) has been emphasised. This study aimed to examine whether ultrasonographydetected synovial changes (USSCs) associate with knee... Read More about Association between ultrasound-detected synovitis and knee pain: a population-based case-control study with both cross-sectional and follow-up data.

Imaging Pain Relief in Osteoarthritis (IPRO): protocol of a double-blind randomised controlled mechanistic study assessing pain relief and prediction of duloxetine treatment outcome (2017)
Journal Article

Introduction: Osteoarthritis (OA) pain is a major cause of long-term disability and chronic pain in the adult population. One in five patients does not receive satisfactory pain relief, which reflects the complexity of chronic pain and the current la... Read More about Imaging Pain Relief in Osteoarthritis (IPRO): protocol of a double-blind randomised controlled mechanistic study assessing pain relief and prediction of duloxetine treatment outcome.

Pain in knee osteoarthritis is associated with variation in the neurokinin 1/substance P receptor (TACR 1) gene (2017)
Journal Article

Background: Substance P (SP) is a pain- and inflammation-related neuropeptide which preferentially binds to the neurokinin receptor 1 (NK1). SP and NK1 receptors have been implicated in joint pain, inflammation and damage in animal models and human s... Read More about Pain in knee osteoarthritis is associated with variation in the neurokinin 1/substance P receptor (TACR 1) gene.

Reductions in radiographic progression in early RA over 25-years: changing contribution from RF in 2 multi-centre UK inception cohorts (2017)
Journal Article

Objectives: To assess 5-year progression of erosions and Joint Space Narrowing (JSN), and their associations with RF status in two large, multi-centre early-RA cohorts spanning 25-years. Methods: Radiographic joint damage was recorded using the Sh... Read More about Reductions in radiographic progression in early RA over 25-years: changing contribution from RF in 2 multi-centre UK inception cohorts.

Pain prediction by serum biomarkers of bone turnover in people with knee osteoarthritis: an observational study of TRAcP5b and cathepsin K in OA (2017)
Journal Article

Objectives: To investigate serum biomarkers, tartrate resistant acid phosphatase 5b (TRAcP5b) and cathepsin K, indicative of osteoclastic bone resorption, and their relationship to pain and pain change in knee osteoarthritis (OA). Methods: Sera and... Read More about Pain prediction by serum biomarkers of bone turnover in people with knee osteoarthritis: an observational study of TRAcP5b and cathepsin K in OA.

Discordant inflammation and pain in early and established rheumatoid arthritis: Latent Class Analysis of Early Rheumatoid Arthritis Network and British Society for Rheumatology Biologics Register data (2016)
Journal Article

Background Rheumatoid arthritis (RA) disease activity is often measured using the 28 joint Disease Activity Score (DAS28). We aimed to identify and independently verify subgroups of people with RA that may be discordant with respect to self-reported... Read More about Discordant inflammation and pain in early and established rheumatoid arthritis: Latent Class Analysis of Early Rheumatoid Arthritis Network and British Society for Rheumatology Biologics Register data.

Identifying placebo responders and predictors of response in osteoarthritis: a protocol for individual patient data meta-analysis (2016)
Journal Article

Background: The management of osteoarthritis (OA) is unsatisfactory, as most treatments are not clinically effective over placebo and most drugs have considerable side effects. On average, 75 % of the analgesic effect from OA treatments in clinical t... Read More about Identifying placebo responders and predictors of response in osteoarthritis: a protocol for individual patient data meta-analysis.

Relative efficacy of topical non-steroidal anti-inflammatory drugs and topical capsaicin in osteoarthritis: protocol for an individual patient data meta-analysis (2016)
Journal Article

Background Pain is the most troubling issue to patients with osteoarthritis (OA), yet current pharmacological treatments offer only small-to-moderate pain reduction. Current guidelines therefore emphasise the need to identify predictors of treatme... Read More about Relative efficacy of topical non-steroidal anti-inflammatory drugs and topical capsaicin in osteoarthritis: protocol for an individual patient data meta-analysis.

Factors predicting pain and early discontinuation of tumour necrosis factor-?-inhibitors in people with rheumatoid arthritis: results from the British society for rheumatology biologics register (2016)
Journal Article

Background: We examined pain levels in 2 cohorts assembled from the British Society for Rheumatology Biologics Register (BSRBR), and investigated which factors predicted Bodily Pain scores and discontinuation of TNF?-inhibitors. Method: Data were re... Read More about Factors predicting pain and early discontinuation of tumour necrosis factor-?-inhibitors in people with rheumatoid arthritis: results from the British society for rheumatology biologics register.

The anti-NGF antibody muMab 911 both prevents and reverses pain behaviour and subchondral osteoclast numbers in a rat model of osteoarthritis pain (2016)
Journal Article

Objective: Nerve growth factor (NGF) has a pivotal role in peripheral hyperalgesia and inflammation; anti-NGF antibodies attenuate pain responses in inflammatory pain models, and in people with osteoarthritis (OA) or low back pain. The aim of this st... Read More about The anti-NGF antibody muMab 911 both prevents and reverses pain behaviour and subchondral osteoclast numbers in a rat model of osteoarthritis pain.

Transient receptor potential canonical 5 (TRPC5) protects against pain and vascular inflammation in arthritis and joint inflammation (2016)
Journal Article

Objective: Transient receptor potential canonical 5 (TRPC5) is functionally expressed on a range of cells including fibroblast-like synoviocytes, which play an important role in arthritis. A role for TRPC5 in inflammation has not been previously show... Read More about Transient receptor potential canonical 5 (TRPC5) protects against pain and vascular inflammation in arthritis and joint inflammation.

Selective inhibition of tropomyosin-receptor-kinase A (TrkA) reduces pain and joint damage in two rat models of inflammatory arthritis (2016)
Journal Article

Background: Inflammation is an essential component of arthritis pain. Nerve growth factor (NGF) plays a key role in acute and chronic pain states especially those associated with inflammation. NGF acts through tropomyosin-receptor-kinase A (TrkA). NG... Read More about Selective inhibition of tropomyosin-receptor-kinase A (TrkA) reduces pain and joint damage in two rat models of inflammatory arthritis.

Reliability and responsiveness of measures of pain in people with osteoarthritis of the knee: a psychometric evaluation (2016)
Journal Article

PURPOSE: To examine the fit between data from the Short Form McGill Pain Questionnaire (SF-MPQ-2) and the Rasch model, and to explore the reliability and internal responsiveness of measures of pain in people with knee osteoarthritis. METHODS: Partic... Read More about Reliability and responsiveness of measures of pain in people with osteoarthritis of the knee: a psychometric evaluation.

Evaluation of a group acceptance commitment therapy intervention for people with knee or hip osteoarthritis: a pilot randomized controlled trial (2016)
Journal Article

OBJECTIVES: The aim was to evaluate an Acceptance commitment therapy (ACT) intervention for people with knee or hip osteoarthritis; a related aim was to compare treatment effects from Rasch-transformed and standard scales. METHODS: Participants were... Read More about Evaluation of a group acceptance commitment therapy intervention for people with knee or hip osteoarthritis: a pilot randomized controlled trial.

The measurement of psychological constructs in people with osteoarthritis of the knee: a psychometric evaluation (2016)
Journal Article

Purpose: To examine the measurement properties of measures of psychological constructs in people with knee osteoarthritis. Method: Participants with osteoarthritis of the knee completed the beck depression inventory (BDI-II), state-trait anxiety inv... Read More about The measurement of psychological constructs in people with osteoarthritis of the knee: a psychometric evaluation.

Home-administered pre-surgical psychological intervention for knee osteoarthritis (HAPPiKNEES): study protocol for a randomised controlled trial (2016)
Journal Article

Background: Knee replacement surgery reduces pain for many people with osteoarthritis (OA). However, surgical outcomes are partly dependent on patients’ moods, and those with depression or anxiety have worse outcomes. Approximately one-third of peopl... Read More about Home-administered pre-surgical psychological intervention for knee osteoarthritis (HAPPiKNEES): study protocol for a randomised controlled trial.

Characterization of multinucleated giant cells in synovium and subchondral bone in knee osteoarthritis and rheumatoid arthritis (2015)
Journal Article

Background: Multinucleated giant cells have been noticed in diverse arthritic conditions since their first description in rheumatoid synovium. However, their role in the pathogenesis of osteoarthritis (OA) or rheumatoid arthritis (RA) still remains b... Read More about Characterization of multinucleated giant cells in synovium and subchondral bone in knee osteoarthritis and rheumatoid arthritis.

Blocking the tropomyosin receptor kinase A (TrkA) receptor inhibits pain behaviour in two rat models of osteoarthritis (2015)
Journal Article

Objectives: Tropomyosin receptor kinase A (TrkA) mediates nociceptor sensitisation by nerve growth factor (NGF), but it is unknown whether selective TrkA inhibition will be an effective strategy for treating osteoarthritis (OA) pain. We determined th... Read More about Blocking the tropomyosin receptor kinase A (TrkA) receptor inhibits pain behaviour in two rat models of osteoarthritis.

Dissecting the contribution of knee joint NGF to spinal nociceptive sensitization in a model of OA pain in the rat (2015)
Journal Article

Objective: Although analgesic approaches targeting nerve growth factor (NGF) for the treatment of osteoarthritis (OA) pain remain of clinical interest, neurophysiological mechanisms by which NGF contribute to OA pain remain unclear. We investigated t... Read More about Dissecting the contribution of knee joint NGF to spinal nociceptive sensitization in a model of OA pain in the rat.

A cross-sectional study of pain sensitivity, disease-activity assessment, mental health, and fibromyalgia status in rheumatoid arthritis (2015)
Journal Article

INTRODUCTION: Pain remains the most important problem for people with rheumatoid arthritis (RA). Active inflammatory disease contributes to pain, but pain due to non-inflammatory mechanisms can confound the assessment of disease activity. We hypothes... Read More about A cross-sectional study of pain sensitivity, disease-activity assessment, mental health, and fibromyalgia status in rheumatoid arthritis.

Increased function of pronociceptive TRPV1 at the level of the joint in a rat model of osteoarthritis pain (2013)
Journal Article

Objectives Blockade of transient receptor potential vanilloid 1 (TRPV1) with systemic antagonists attenuates osteoarthritis (OA) pain behaviour in rat models, but on-target-mediated hyperthermia has halted clinical trials. The present study investiga... Read More about Increased function of pronociceptive TRPV1 at the level of the joint in a rat model of osteoarthritis pain.

The experience of living with knee osteoarthritis: exploring illness and treatment beliefs through thematic analysis (2013)
Journal Article

Purpose: Knee osteoarthritis (OA) is a major cause of disability in older adults. However, there is limited research on the daily experience of living with knee OA. We aimed to offer insight into the beliefs of patients with knee OA about their illne... Read More about The experience of living with knee osteoarthritis: exploring illness and treatment beliefs through thematic analysis.