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Protein kinase A mediates modality-specific modulation of the mechanically-gated ion channel PIEZO2.

Protein kinase A is a downstream effector of many inflammatory mediators that induce pain hypersensitivity by increasing the mechanosensitivity of nociceptive sensory afferent. Here we examine the molecular mechanism underlying […]

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Tiam1 coordinates synaptic structural and functional plasticity underpinning the pathophysiology of neuropathic pain.

Neuropathic pain is a common, debilitating chronic pain condition caused by damage or a disease affecting the somatosensory nervous system. Understanding the pathophysiological mechanisms underlying neuropathic pain is critical for […]

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Opioids induce bidirectional synaptic plasticity in a brainstem pain centre in the rat.

Opioids are powerful analgesics commonly used in pain management. However, opioids can induce complex neuroadaptations, including synaptic plasticity, that ultimately drive severe side effects, such as pain hypersensitivity and strong […]

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Downregulation of ciRNA-Kat6b in dorsal spinal horn is required for neuropathic pain by regulating Kcnk1 in miRNA-26a-dependent manner.

Nerve injury-induced maladaptive changes in gene expression in the spinal neurons are essential for neuropathic pain genesis. Circular RNAs (ciRNA) are emerging as key regulators of gene expression. Here, we […]

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MAGL regulates synovial macrophage polarization vis inhibition of mitophagy in osteoarthritic pain.

Pain is the hallmark symptom of osteoarthritis (OA), and current analgesic treatments may be insufficient or have potentially adverse effects. The inhibition of Monoacylglycerol lipase (MAGL) produces anti‑inflammatory and anti‑nociceptive […]

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Acamprosate effect on neuropathic pain in rats: with emphasis on the role of ERK/MAPK pathway and SCN9A sodium channel.

Neuropathic pain is a chronic pain owing to nerve damage or diseases of the central nervous system (CNS). The expression of SCN9A, which encodes the Nav1.7 voltage-gated sodium channel and […]

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Promoting AMPK/SR-A1-mediated clearance of HMGB1 attenuates chemotherapy-induced peripheral neuropathy.

Chemotherapy-induced peripheral neuropathy (CIPN) is a serious side effect of chemotherapy with poorly understood mechanisms and few treatments. High-mobility group box 1 (HMGB1)-induced neuroinflammation is the main cause of CIPN. […]

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Naphthylisoquinoline alkaloids, a new structural template inhibitor of Nav1.7 sodium channel.

Voltage-gated sodium channel 1.7 (Nav1.7) remains one of the most promising drug targets for pain relief. In the current study, we conducted a high-throughput screening of natural products in our […]

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Climbing behavior by mice as an endpoint for preclinical assessment of drug effects in the absence and presence of pain.

This study evaluated climbing in mice as a tool to assess the expression and treatment of pain-related behavioral depression in male and female ICR mice. Mice were videotaped during 10-min […]

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The mTOR inhibitor rapamycin suppresses trigeminal neuropathic pain and p-MKK4/p-p38 mitogen-activated protein kinase-mediated microglial activation in the trigeminal nucleus caudalis of mice with infraorbital nerve injury.

Neuropathic pain caused by trigeminal nerve injury is a typical refractory orofacial chronic pain accompanied by the development of hyperalgesia and allodynia. We previously demonstrated that the mammalian target of […]

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