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Serum concentrations of IL-16 and its genetic polymorphism rs4778889 affect the susceptibility and severity of endometriosis in Nigerian women.

Endometriosis is the presence of active ectopic endometrial glands and stroma at other sites outside the uterine cavity. It is a common cause of chronic pelvic pain which is sometimes […]

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Pain tolerance after stroke: The Tromsø study.

Stroke lesions might alter pain processing and modulation by affecting the widely distributed network of brain regions involved. We aimed to compare pain tolerance in stroke survivors and stroke-free persons […]

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Multiple antagonist calcium-dependent mechanisms control CaM kinase-1 subcellular localization in a thermal nociceptor.

Nociceptive habituation is a conserved process through which pain sensitivity threshold is adjusted based on past sensory experience and which may be dysregulated in human chronic pain conditions. Noxious heat […]

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Gut microbiota and metabolites drive chronic sickle cell disease pain.

Pain is a debilitating symptom and leading reason for hospitalization of individuals with sickle cell disease. Chronic sickle cell pain is poorly managed because the biological basis is not fully […]

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Altered Functional Networks during Gain Anticipation in Fibromyalgia.

Reward motivation is essential in shaping human behavior and cognition. Previous studies have shown altered reward motivation and reward brain circuitry in chronic pain conditions, including fibromyalgia. Fibromyalgia is a […]

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EphA1 aggravates neuropathic pain by activating CXCR4/RhoA/ROCK2 pathway in mice.

Neuropathic pain is a refractory disease with limited treatment options due to its complex mechanisms. Whereas erythropoietin-producing hepatocyte A1 (EphA1) mediates the production of inflammatory factors that are important in […]

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Contribution of Immune Cells to Intervertebral Disc Degeneration and the Potential of Immunotherapy.

Substantial evidence supports that chronic low back pain is associated with intervertebral disc degeneration (IDD), which is accompanied by decreased cell activity and matrix degradation. The role of immune cells, […]

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Distinct alterations in central pain processing of visceral and somatic pain in quiescent ulcerative colitis compared to irritable bowel syndrome and health.

Despite relevance to pain chronicity, disease burden, and treatment, mechanisms of pain perception for different types of acute pain remain incompletely understood in patients with inflammatory bowel disease (IBD). Building […]

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Ketogenic diet enhances the effects of oxycodone in mice.

Opioids have been used to manage pain for thousands of years, but they have significant potential for abuse. Prescription opioids, like oxycodone, are associated with 32% of overdoses, that have […]

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Ca3.2-dependent hyperalgesia/allodynia following intrathecal and intraplantar zinc chelator administration in rodents.

Ca3.2, a T-type calcium channel (T-channel) family member, is expressed in the nociceptors and spinal cord, and its activity is largely suppressed by zinc under physiological conditions. In rats, intrathecal […]

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