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A new experimental rat model of nocebo-related nausea involving double mechanisms of observational learning and conditioning.

The nocebo effect, such as nausea and vomiting, is one of the major reasons patients discontinue therapy. The underlying mechanisms remain unknown due to a lack of reliable experimental models. […]

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Immediate systemic neuroimmune responses following spinal mobilisation and manipulation in people with non-specific neck pain: a randomised placebo-controlled trial.

Spinal mobilisation/manipulation is a common intervention for spinal pain, yet the working mechanisms are largely unknown. A randomised placebo-controlled trial was conducted to (1) compare the immediate neuroimmune responses following […]

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Long-Term Opioid Use and Dementia Risk in Patients With Chronic Pain.

This study aimed to investigate the association between long-term opioid use and the risk of dementia in patients with chronic pain.

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DRG afferents that mediate physiologic and pathologic mechanosensation from the distal colon.

The properties of dorsal root ganglia (DRG) neurons that innervate the distal colon are poorly defined, hindering our understanding of their roles in normal physiology and gastrointestinal (GI) disease. Here, […]

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TissueGene-C induces long-term analgesic effects through regulation of pain mediators and neuronal sensitization in a rat monoiodoacetate-induced model of osteoarthritis pain.

TissueGene-C (TG-C), a combination of human allogeneic chondrocytes and irradiated GP2-293 cells engineered to overexpress transforming growth factor-β1 (TGF-β1), has been developed as a novel cell-based gene therapy and a […]

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Sex-related correspondence between mechanical hypersensitivity and the discharge of medullary pain control neurons in neuropathic rats.

Here we studied whether the sex-related difference in mechanical hypersensitivity induced by neuropathy is associated with the discharge rate of medullary pain control neurons. We performed experiments in male and […]

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Sex differences in peripheral immune cell activation: Implications for pain and pain resolution.

Decades of research into chronic pain has deepened our understanding of the cellular mechanisms behind this process. However, a failure to consider the biological variable of sex has limited the […]

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Exploring sensory sensitivity, cortical excitability, and habituation in episodic migraine, as a function of age and disease severity, using the pattern-reversal task.

Migraine is a cyclic, neurosensory disorder characterized by recurrent headaches and altered sensory processing. The latter is manifested in hypersensitivity to visual stimuli, measured with questionnaires and sensory thresholds, as […]

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Extracellular RNAs-TLR3 signaling contributes to cognitive impairment after chronic neuropathic pain in mice.

Chronic pain is often associated with cognitive decline, which could influence the quality of the patient’s life. Recent studies have suggested that Toll-like receptor 3 (TLR3) is crucial for memory […]

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A common neuronal ensemble in nucleus accumbens regulates pain-like behaviour and sleep.

A comorbidity of chronic pain is sleep disturbance. Here, we identify a dual-functional ensemble that regulates both pain-like behaviour induced by chronic constrictive injury or complete Freund’s adjuvant, and sleep […]

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