All Outputs (30)

Anti-nociceptive and desensitizing effects of olvanil on capsaicin-induced thermal hyperalgesia in the rat (2016)
Journal Article
Alsalem, M., Millns, P., Altarifi, A., El-Salem, K., Chapman, V., & Kendall, D. A. (in press). Anti-nociceptive and desensitizing effects of olvanil on capsaicin-induced thermal hyperalgesia in the rat. BMC Pharmacology and Toxicology, 17, https://doi.org/10.1186/s40360-016-0074-9

Background: Olvanil (NE 19550) is a non-pungent synthetic analogue of capsaicin, the natural pungent ingredient of capsicum which activates the transient receptor potential vanilloid type-1 (TRPV1) channel and was developed as a potential analgesic c... Read More about Anti-nociceptive and desensitizing effects of olvanil on capsaicin-induced thermal hyperalgesia in the rat.

Relationship between structural pathology and pain behaviour in a model of osteoarthritis (OA) (2016)
Journal Article
Nwosu, L. N., Mapp, P. I., Chapman, V., & Walsh, D. A. (2016). Relationship between structural pathology and pain behaviour in a model of osteoarthritis (OA). Osteoarthritis and Cartilage, 24(11), 1910-1917. https://doi.org/10.1016/j.joca.2016.06.012

Objectives
To address the hypothesis that different types of established OA pain behaviours have associations with different aspects of articular pathology, we investigated the relationship between structural knee joint pathology and pain behaviour... Read More about Relationship between structural pathology and pain behaviour in a model of osteoarthritis (OA).

Neuron-immune mechanisms contribute to pain in early stages of arthritis (2016)
Journal Article
Nieto, F. R., Clark, A. K., Grist, J., Hathway, G. J., Chapman, V., & Malcangio, M. (2016). Neuron-immune mechanisms contribute to pain in early stages of arthritis. Journal of Neuroinflammation, 13, https://doi.org/10.1186/s12974-016-0556-0

Background: Rheumatoid arthritis (RA) patients frequently show weak correlations between the magnitude of pain and inflammation suggesting that mechanisms other than overt peripheral inflammation contribute to pain in RA. We assessed changes in micro... Read More about Neuron-immune mechanisms contribute to pain in early stages of arthritis.

Neural correlates of hyperalgesia in the monosodium iodoacetate model of osteoarthritis pain (2016)
Journal Article
Abaei, M., Sagar, D. R., Stockley, E. G., Spicer, C. H., Prior, M., Chapman, V., & Auer, D. P. (in press). Neural correlates of hyperalgesia in the monosodium iodoacetate model of osteoarthritis pain. Molecular Pain, 12, https://doi.org/10.1177/1744806916642445

Background: The mechanisms driving osteoarthritic pain remain poorly understood, but there is increasing evidence for a role of the central nervous system in the chronification of pain.We used functional magnetic resonance imaging to investigate the... Read More about Neural correlates of hyperalgesia in the monosodium iodoacetate model of osteoarthritis pain.

Blocking the tropomyosin receptor kinase A (TrkA) receptor inhibits pain behaviour in two rat models of osteoarthritis (2015)
Journal Article
Nwosu, L. N., Mapp, P. I., Chapman, V., & Walsh, D. A. (in press). Blocking the tropomyosin receptor kinase A (TrkA) receptor inhibits pain behaviour in two rat models of osteoarthritis. Annals of the Rheumatic Diseases, 75(6), https://doi.org/10.1136/annrheumdis-2014-207203

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.

Effects of pro-inflammatory cytokines on cannabinoid CB1 and CB2 receptors in immune cells (2015)
Journal Article
Jean-Gilles, L., Braitch, M., Latif, M. L., Aram, J., Fahey, A. J., Edwards, L. J., …Constantinescu, C. S. (2015). Effects of pro-inflammatory cytokines on cannabinoid CB1 and CB2 receptors in immune cells. Acta Physiologica, 214(1), 63-74. https://doi.org/10.1111/apha.12474

© 2015 The Authors. Aims: To investigate the regulation of cannabinoid receptors CB1 and CB2 on immune cells by pro-inflammatory cytokines and its potential relevance to the inflammatory neurological disease, multiple sclerosis (MS). CB1 and CB2 sign... Read More about Effects of pro-inflammatory cytokines on cannabinoid CB1 and CB2 receptors in immune cells.

Calcitonin gene-related peptide-expressing sensory neurons and spinal microglial reactivity contribute to pain states in collagen-induced arthritis (2015)
Journal Article
Nieto, F. R., Clark, A. K., Grist, J., Chapman, V., & Malcangio, M. (2015). Calcitonin gene-related peptide-expressing sensory neurons and spinal microglial reactivity contribute to pain states in collagen-induced arthritis. Arthritis and Rheumatology, 67(6), https://doi.org/10.1002/art.39082

Objective

To evaluate the contribution of sensory neurons in ankle joints and adjacent tissue to the development of pain in collagen‐induced arthritis (CIA), and to determine the relationship between pain and the appearance of clinical signs.... Read More about Calcitonin gene-related peptide-expressing sensory neurons and spinal microglial reactivity contribute to pain states in collagen-induced arthritis.

Dissecting the contribution of knee joint NGF to spinal nociceptive sensitization in a model of OA pain in the rat (2015)
Journal Article
Sagar, D. R., Nwosu, L. N., Walsh, D. A., & Chapman, V. (2015). Dissecting the contribution of knee joint NGF to spinal nociceptive sensitization in a model of OA pain in the rat. Osteoarthritis and Cartilage, 23(6), https://doi.org/10.1016/j.joca.2015.01.010

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.

Simultaneous tissue profiling of eicosanoid and endocannabinoid lipid families in a rat model of osteoarthritis (2014)
Journal Article

We describe a novel LC method for the simultaneous and quantitative profiling of 43 oxylipins including eicosanoids, endocannabinoids, and structurally related bioactive lipids with modified acyl groups. The LC-MS/MS method uses switching at a define... Read More about Simultaneous tissue profiling of eicosanoid and endocannabinoid lipid families in a rat model of osteoarthritis.

Tonic modulation of spinal hyperexcitability by the endocannabinoid receptor system in a rat model of osteoarthritis pain (2010)
Journal Article
Sagar, D. R., Staniaszek, L. E., Okine, B. N., Woodhams, S., Norris, L. M., Pearson, R. G., …Chapman, V. (2010). Tonic modulation of spinal hyperexcitability by the endocannabinoid receptor system in a rat model of osteoarthritis pain. Arthritis and Rheumatism, 62(12), https://doi.org/10.1002/art.27698

Objective. To investigate the impact of an experimental
model of osteoarthritis (OA) on spinal nociceptive
processing and the role of the inhibitory endocannabinoid
system in regulating sensory processing at the
spinal level.
Methods. Experiment... Read More about Tonic modulation of spinal hyperexcitability by the endocannabinoid receptor system in a rat model of osteoarthritis pain.