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  1. Article: Exercise-Induced Hypoalgesia in Patients with Chronic Whiplash-Associated Disorders: Differences between Subgroups Based on the Central Sensitization Inventory.

    Hendriks, Erwin / Coppieters, Iris / Voogt, Lennard / Cools, Wilfried / Ickmans, Kelly

    Journal of clinical medicine

    2024  Volume 13, Issue 2

    Abstract: Background: Physical exercise is an important element in the rehabilitation of chronic whiplash-associated disorders, with the physiological process underlying pain reduction called exercise-induced hypoalgesia. In chronic whiplash-associated disorders, ...

    Abstract Background: Physical exercise is an important element in the rehabilitation of chronic whiplash-associated disorders, with the physiological process underlying pain reduction called exercise-induced hypoalgesia. In chronic whiplash-associated disorders, exercise-induced hypoalgesia appears impaired, and the research suggests a relationship with symptoms of dysfunctional nociceptive processing, such as central sensitization. This study improves our understanding of exercise-induced hypoalgesia in chronic whiplash-associated disorders by examining the differences between the extent of exercise-induced hypoalgesia in subgroups based on scores on the central sensitization inventory (CSI).
    Methods: Data were collected from 135 participants with chronic whiplash-associated disorders who completed a set of questionnaires. Pain pressure thresholds and temporal summations were assessed before and after a submaximal aerobic bicycle exercise test.
    Results: We observed no interaction effect between exercise-induced hypoalgesia and the CSI scores for both pain pressure threshold and temporal summation. No overall statistical effect was measured in the analysis of the effect of time. The pain pressure threshold significantly related to the CSI. The temporal summation showed no correlation.
    Conclusions: During this study, we did not find evidence for a difference in the presence of exercise-induced hypoalgesia when the subgroups were created based on the central sensitization cluster calculator. Limited evidence was found for the influence of CSI scores on the delta pain pressure threshold.
    Language English
    Publishing date 2024-01-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm13020482
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  2. Article ; Online: Correction to: Occurrence of corneal sub-epithelial microneuromas and axonal swelling in people with diabetes with and without (painful) diabetic neuropathy.

    Sierra-Silvestre, Eva / Andrade, Ricardo J / Colorado, Luisa H / Edwards, Katie / Coppieters, Michel W

    Diabetologia

    2024  

    Language English
    Publishing date 2024-04-05
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 1694-9
    ISSN 1432-0428 ; 0012-186X
    ISSN (online) 1432-0428
    ISSN 0012-186X
    DOI 10.1007/s00125-024-06138-z
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  3. Article ; Online: Hydrogen-deuterium exchange coupled to mass spectrometry: A multifaceted tool to decipher the molecular mechanism of transporters.

    Coppieters 't Wallant, Kyo / Martens, Chloe

    Biochimie

    2022  Volume 205, Page(s) 95–101

    Abstract: Transporters regulate trafficking through the biological membrane of living cells and organelles. Therefore, these proteins play an important role in key cellular processes. Obtaining a molecular-level description of the mechanism of transporters is ... ...

    Abstract Transporters regulate trafficking through the biological membrane of living cells and organelles. Therefore, these proteins play an important role in key cellular processes. Obtaining a molecular-level description of the mechanism of transporters is highly desirable to understand and modulate such processes. Different challenges currently complicate this effort, mostly due to transporters' intrinsic properties. They are dynamic and often averse to in vitro characterization. The crossing of the membrane via a transporter depends on both global and local structural changes that will enable substrate binding from one side of the membrane and release on the other. Dedicated approaches are required to monitor these dynamic changes, ideally within the complex membrane environment. Hydrogen-deuterium exchange coupled to mass spectrometry (HDX-MS) has recently emerged as a powerful biophysical tool to understand transporters' mechanism. This mini-review aims to offer to the reader an overview of the field of HDX-MS applied to transporters. It first summarizes the current workflow for HDX-MS measurements on transporters. It then provides illustrative examples on the molecular insights that are accessible thanks to the technique; following conformational transitions between different states, observing structural changes upon ligand binding and finally understanding the role of lipid-protein interactions.
    MeSH term(s) Hydrogen/chemistry ; Deuterium ; Deuterium Exchange Measurement/methods ; Protein Conformation ; Mass Spectrometry/methods ; Membrane Transport Proteins
    Chemical Substances Hydrogen (7YNJ3PO35Z) ; Deuterium (AR09D82C7G) ; Membrane Transport Proteins
    Language English
    Publishing date 2022-08-28
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 120345-9
    ISSN 1638-6183 ; 0300-9084
    ISSN (online) 1638-6183
    ISSN 0300-9084
    DOI 10.1016/j.biochi.2022.08.014
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  4. Article ; Online: Quantifying lumbar paraspinal intramuscular fat: Accuracy and reliability of automated thresholding models.

    Wesselink, E O / Elliott, J M / Pool-Goudzwaard, A / Coppieters, M W / Pevenage, P P / Di Ieva, A / Weber Ii, K A

    North American Spine Society journal

    2024  Volume 17, Page(s) 100313

    Abstract: ... Gaussian mixture modelling (GMM) and K-means clustering were used to quantify IMF bilaterally ... GMM: Results: We found poor reliability for K-means: Conclusions: The performance of automated ... assessed. Compared to Dixon MRI, the GMM performed better than K-means and three-component performed better ...

    Abstract Background: The reported level of lumbar paraspinal intramuscular fat (IMF) in people with low back pain (LBP) varies considerably across studies using conventional T
    Methods: In this cross-sectional study, we included MRI scans from 30 people with LBP (50% female; mean (SD) age: 46.3 (15.0) years). Gaussian mixture modelling (GMM) and K-means clustering were used to quantify IMF bilaterally from the lumbar multifidus, erector spinae, and psoas major using two and three-component thresholding approaches (GMM
    Results: We found poor reliability for K-means
    Conclusions: The performance of automated thresholding models is strongly dependent on the choice of algorithms, number of components, and muscle assessed. Compared to Dixon MRI, the GMM performed better than K-means and three-component performed better than two-component models for quantifying lumbar multifidus and erector spinae IMF. None of the investigated models accurately quantified IMF for psoas major. Future research is needed to investigate the performance of thresholding models in a more heterogeneous clinical dataset and across different sites and vendors.
    Language English
    Publishing date 2024-01-24
    Publishing country United States
    Document type Journal Article
    ISSN 2666-5484
    ISSN (online) 2666-5484
    DOI 10.1016/j.xnsj.2024.100313
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  5. Article ; Online: Mild untreated hypercholesterolaemia affects mechanical properties of the Achilles tendon but not gastrocnemius muscle.

    Coombes, Brooke K / Hanna, Monica / Thompson, Kaelah A / Coppieters, Michel W / Dick, Taylor J M / Andrade, Ricardo J / Barber, Lee

    Journal of biomechanics

    2024  Volume 166, Page(s) 112048

    Abstract: Tendon xanthoma and altered mechanical properties have been demonstrated in people with familial hypercholesterolaemia. However, it is unclear whether mild, untreated hypercholesterolaemia alters musculotendinous mechanical properties and muscle ... ...

    Abstract Tendon xanthoma and altered mechanical properties have been demonstrated in people with familial hypercholesterolaemia. However, it is unclear whether mild, untreated hypercholesterolaemia alters musculotendinous mechanical properties and muscle architecture. We conducted a case-control study of adults aged 50 years and over, without lower limb injury or history of statin medication. Based on fasting low-density lipoprotein (LDL) cholesterol levels, 6 participants had borderline high LDL (>3.33 mmol/L) and 6 had optimal LDL cholesterol (<2.56 mmol/L). Using shear wave elastography, shear wave velocity (SWV) of the Achilles tendon and gastrocnemius medialis muscle (a proxy for stiffness), along with muscle fascicle length and pennation angle were measured under four passive tensile loads (0, 0.5, 1.0, 1.5 kg) applied via a pulley system. Differences between groups were found for tendon SWV but not muscle SWV, fascicle length or pennation angle. Participants with hypercholesterolaemia showed greater SWV (mean difference, 95 % CI: 2.4 m/s, 0.9 to 4.0, P = 0.024) compared to the control group across all loads. These findings suggest that adults with mild hypercholesterolaemia have increased tendon stiffness under low passive loads, while muscle was not affected. Future research is needed to confirm findings in a larger cohort and explore the impact of hypercholesterolaemia on tendon fatigue injury and tendinopathy.
    MeSH term(s) Adult ; Humans ; Middle Aged ; Aged ; Achilles Tendon/physiology ; Case-Control Studies ; Hypercholesterolemia ; Ultrasonography ; Muscle, Skeletal/physiology ; Tendon Injuries
    Language English
    Publishing date 2024-03-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218076-5
    ISSN 1873-2380 ; 0021-9290
    ISSN (online) 1873-2380
    ISSN 0021-9290
    DOI 10.1016/j.jbiomech.2024.112048
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  6. Article ; Online: Influence of Preoperative Pain, Cognitions, and Quantitative Sensory Testing Measures on the Effects of Perioperative Pain Neuroscience Education for People Receiving Surgery for Lumbar Radiculopathy: Secondary Analysis of a Randomized Controlled Trial.

    Van Bogaert, Wouter / Coppieters, Iris / Nijs, Jo / Buyl, Ronald / Ickmans, Kelly / Moens, Maarten / Goudman, Lisa / Putman, Koen / Huysmans, Eva

    The Journal of orthopaedic and sports physical therapy

    2024  Volume 54, Issue 4, Page(s) 1–10

    Abstract: OBJECTIVE: ...

    Abstract OBJECTIVE:
    MeSH term(s) Adult ; Humans ; Radiculopathy/surgery ; Quality of Life ; Pain ; Neurosciences ; Cognition ; Lumbar Vertebrae/surgery ; Treatment Outcome
    Language English
    Publishing date 2024-01-08
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 604640-x
    ISSN 1938-1344 ; 0190-6011
    ISSN (online) 1938-1344
    ISSN 0190-6011
    DOI 10.2519/jospt.2024.12051
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  7. Article ; Online: Caractéristiques épidémiologiques de l’épidémie de Covid-19 entre 2020 et 2022 au Kongo central, RDC.

    Akinocho, El-Mouksitou / Kasongo, Matthieu / Moerman, Kristel / Sere, Felipe / Coppieters, Yves

    Medecine tropicale et sante internationale

    2023  Volume 3, Issue 2

    Abstract: Introduction: The Democratic Republic of Congo (DRC) has experienced widespread community transmission of SARS-CoV-2 and has recorded four successive waves from March 2020 to March 2022. The objective of this study is to determine the socio-demographic ... ...

    Title translation Epidemiological characteristics of the Covid-19 epidemic between 2020 and 2022 in Kongo central, DRC.
    Abstract Introduction: The Democratic Republic of Congo (DRC) has experienced widespread community transmission of SARS-CoV-2 and has recorded four successive waves from March 2020 to March 2022. The objective of this study is to determine the socio-demographic characteristics of Covid-19 patients during these epidemic waves in the province of Kongo central and to identify factors associated with deaths.
    Material and methods: This is a cross-sectional study of Covid-19 data from the provincial surveillance system. The data consisted of epidemiological surveillance data, laboratory data (tests), hospital data and patient follow-up data. We determined the characteristics of positive cases throughout the period and implemented logistic regression of factors associated with death.
    Results: During the successive waves, 9, 573 positive cases were reported in the province, 546 cases in the first wave and 6, 346 in the fourth wave. Seven positive cases out of 10 concerned people aged 25 to 64. The districts of Matadi, Moanda and Mbanza-Ngungu were the most affected. Age above 64 [OR: 7.2 CI:5.1-10.3] and wave 2 [OR: 4.4 CI:1.6-12.4] were the factors statistically associated with death.
    Conclusion: As in other African settings, age, comorbidities, higher socio-professional level and living in urban areas were the major risk factors for severe forms of the disease and death. Our analysis underlines the importance of collecting and analysing several epidemiological variables down to the provincial level over time for a better continuous knowledge of the situation.
    MeSH term(s) Humans ; COVID-19/epidemiology ; Democratic Republic of the Congo/epidemiology ; Cross-Sectional Studies ; SARS-CoV-2 ; Risk Factors
    Language French
    Publishing date 2023-04-18
    Publishing country France
    Document type English Abstract ; Journal Article
    ISSN 2778-2034
    ISSN (online) 2778-2034
    DOI 10.48327/mtsi.v3i2.2023.356
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  8. Article ; Online: Efficacy of Conservative Interventions for Musculoskeletal Conditions on Pain and Disability in Active Serving Military Personnel-A Systematic Review.

    Bounds, Courtney L / Coppieters, Michel W / Thomson, Hayley W / Larsen, Brianna / Evans, Kerrie

    Military medicine

    2023  Volume 189, Issue 1-2, Page(s) e66–e75

    Abstract: Introduction: Musculoskeletal (MSK) injuries and associated pain disorders are one of the leading causes for soldiers not being medically fit for deployment, impacting force capability and readiness. Musculoskeletal pain continues to be a leading cause ... ...

    Abstract Introduction: Musculoskeletal (MSK) injuries and associated pain disorders are one of the leading causes for soldiers not being medically fit for deployment, impacting force capability and readiness. Musculoskeletal pain continues to be a leading cause of disability within military services and is associated with a substantial financial burden. A better understanding of the effectiveness of MSK pain management strategies is required. This review was designed to determine the efficacy of nonsurgical interventions, such as physiotherapy, exercise, pharmacology, and multidisciplinary programs, to manage MSK conditions in active serving military populations.
    Materials and methods: MEDLINE, Embase, CINAHL, and SPORTDiscus were searched to identify relevant randomized clinical trials. Recommended methods were used for article identification, selection, and data extraction. The Cochrane Risk of Bias tool and the Grade of Recommendation, Assessment, Development, and Evaluation were used to appraise the studies. Where possible, meta-analyses were performed. The review was conducted according to the PRISMA guidelines.
    Results: Nineteen articles (1,408 participants) met the eligibility criteria. Low back pain (LBP) was the most frequently investigated condition, followed by knee pain, neck pain, and shoulder pain. Early physiotherapy, exercise and adjunct chiropractic manipulation (for LBP), and multidisciplinary pain programs (physiotherapy, occupational therapy, and psychology) (for chronic MSK pain) improved pain (standardized mean difference ranged from -0.39 to -1.34; low strength of evidence). Participation in multidisciplinary pain programs, adjunct chiropractic manipulation, and early physiotherapy improved disability (for LBP) (standardized mean difference ranged from -0.45 to -0.86; low to very low strength of evidence). No studies evaluated pain medication. Dietary supplements (glucosamine, chondroitin sulfate, and manganese ascorbate), electrotherapy, isolated lumbar muscle exercises, home cervical traction, or training in virtual reality showed no benefit. The studies had a high risk of bias, were typically underpowered, and demonstrated high clinical heterogeneity.
    Conclusions: Currently available randomized clinical trials do not provide sufficient evidence to guide military organizations or health care professionals in making appropriate treatment decisions to manage MSK pain in active serving military personnel. Future research is essential to enable evidence-based recommendations for the effective management of MSK pain conditions in this unique population.
    MeSH term(s) Humans ; Military Personnel ; Physical Therapy Modalities ; Low Back Pain/therapy ; Chronic Pain/therapy ; Shoulder Pain/therapy
    Language English
    Publishing date 2023-01-31
    Publishing country England
    Document type Systematic Review ; Journal Article
    ZDB-ID 391061-1
    ISSN 1930-613X ; 0026-4075
    ISSN (online) 1930-613X
    ISSN 0026-4075
    DOI 10.1093/milmed/usac409
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  9. Article ; Online: Occurrence of corneal sub-epithelial microneuromas and axonal swelling in people with diabetes with and without (painful) diabetic neuropathy.

    Sierra-Silvestre, Eva / Andrade, Ricardo J / Colorado, Luisa H / Edwards, Katie / Coppieters, Michel W

    Diabetologia

    2023  Volume 66, Issue 9, Page(s) 1719–1734

    Abstract: Aims/hypothesis: Non-invasive in vivo corneal confocal microscopy is gaining ground as an alternative to skin punch biopsy to evaluate small-diameter nerve fibre characteristics. This study aimed to further explore corneal nerve fibre pathology in ... ...

    Abstract Aims/hypothesis: Non-invasive in vivo corneal confocal microscopy is gaining ground as an alternative to skin punch biopsy to evaluate small-diameter nerve fibre characteristics. This study aimed to further explore corneal nerve fibre pathology in diabetic neuropathy.
    Methods: This cross-sectional study quantified and compared corneal nerve morphology and microneuromas in participants without diabetes (n=27), participants with diabetes but without distal symmetrical polyneuropathy (DSPN; n=33), participants with non-painful DSPN (n=25) and participants with painful DSPN (n=18). Clinical and electrodiagnostic criteria were used to diagnose DSPN. ANCOVA was used to compare nerve fibre morphology in the central cornea and inferior whorl, and the number of corneal sub-epithelial microneuromas between groups. Fisher's exact tests were used to compare the type and presence of corneal sub-epithelial microneuromas and axonal swelling between groups.
    Results: Various corneal nerve morphology metrics, such as corneal nerve fibre length and density, showed a progressive decline across the groups (p<0.001). In addition, axonal swelling was present more frequently (p=0.018) and in higher numbers (p=0.03) in participants with painful compared with non-painful DSPN. The frequency of axonal distension, a type of microneuroma, was increased in participants with painful and non-painful DSPN compared to participants with diabetes but without DSPN and participants without diabetes (all p≤0.042). The combined presence of all microneuromas and axonal swelling was increased in participants with painful DSPN compared with all other groups (p≤0.026).
    Conclusions/interpretation: Microneuromas and axonal swelling in the cornea increase in prevalence from participants with diabetes to participants with non-painful DSPN and participants with painful DSPN.
    MeSH term(s) Humans ; Diabetic Neuropathies ; Cross-Sectional Studies ; Cornea/pathology ; Pain ; Skin/innervation ; Microscopy, Confocal ; Diabetes Mellitus, Type 2/complications ; Diabetes Mellitus, Type 2/pathology
    Language English
    Publishing date 2023-06-10
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1694-9
    ISSN 1432-0428 ; 0012-186X
    ISSN (online) 1432-0428
    ISSN 0012-186X
    DOI 10.1007/s00125-023-05945-0
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  10. Article ; Online: Online Exercise Programs for Chronic Nonspecific Neck Pain: A Randomized Controlled Trial Reveals Comparable Effects of Global, Local, and Combined Approaches.

    Bontinck, Jente / Meeus, Mira / Voogt, Lennard / Chys, Marjolein / Coppieters, Iris / Cagnie, Barbara / De Meulemeester, Kayleigh

    Physical therapy

    2024  

    Abstract: Objective: Specific neck exercises are recommended in the rehabilitation of chronic nonspecific neck pain. They are unfortunately often accompanied by acute pain flare-ups. Global exercises might be a beneficial addition, as they activate endogenous ... ...

    Abstract Objective: Specific neck exercises are recommended in the rehabilitation of chronic nonspecific neck pain. They are unfortunately often accompanied by acute pain flare-ups. Global exercises might be a beneficial addition, as they activate endogenous analgesia without overloading painful structures. However, it is still unclear which type of exercise is most effective. This randomized controlled trial was done to evaluate the effect of an online blended program of global and specific neck exercises, compared to programs including only 1 of both types of exercise.
    Methods: Forty-eight patients with chronic nonspecific neck pain were randomized into 3 groups. Online questionnaires were collected at baseline, at midtreatment, immediately after treatment, and at the 3-month follow-up. Quantitative sensory testing and actigraphy were assessed at baseline and after treatment. Linear mixed-model analyses were performed to evaluate treatment effects within and between groups. Neck pain-related disability after treatment was considered the primary outcome.
    Results: No time × treatment interaction effects were found. All groups improved in neck pain-related disability, pain intensity, self-reported symptoms of central sensitization, local pain sensitivity, physical activity, and pain medication use. No effects were found on quality of life, sleep quality, depression, anxiety, stress, widespread pain sensitivity, health economics, or actigraphy measurements. A higher global perceived effect was reported after performing the blended program, compared to the other groups.
    Conclusion: A blended exercise program was not superior to the stand-alone programs in reducing disability. Nevertheless, the global perceived effect of this type of exercise was higher. Future research necessitates larger sample sizes to adequately explore the optimal type of exercise for patients with chronic nonspecific neck pain.
    Impact: Exercise therapy should be an important part of the rehabilitation of patients with chronic nonspecific neck pain, regardless of the type of exercise.
    Language English
    Publishing date 2024-03-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 415886-6
    ISSN 1538-6724 ; 0031-9023
    ISSN (online) 1538-6724
    ISSN 0031-9023
    DOI 10.1093/ptj/pzae040
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