chronic pain/necrosis

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A comparison of chronic pain behavior following local application of tumor necrosis factor alpha to the normal and mechanically compressed lumbar ganglia in the rat.

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To study the role of inflammatory cytokines in the initiation and persistence of radiculopathy as seen in humans, tumor necrosis factor alpha (TNF-alpha) was administered either to normal, uninjured L5 dorsal root ganglia (DRG) of rats via a hole drilled through the transverse process, or to

Core decompression in avascular necrosis of the hip in sickle-cell disease.

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Sickle-cell disease (SCD) is the most common cause of avascular necrosis (AVN) of the hip in childhood. It results in significant physical impairment and chronic pain, and often progresses to require hip replacement. Conservative therapy is ineffective. We evaluated whether core decompression can

Avascular necrosis of the hamate treated with capitohamate and lunatohamate intercarpal fusion.

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This article describes a case of a 58-year-old man with no significant underlying disease who had chronic pain due to osteonecrosis of the hamate. Following physical examination, imaging, and laboratory findings, he underwent surgical exploration via a limited dorsal approach. The hamate bone did

Intranasal tissue necrosis associated with opioid abuse: Case report and systematic review.

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OBJECTIVE Opioid abuse is a common disorder affecting over 2 million Americans. Intranasal tissue necrosis is a previously described sequela of nasal opioid inhalation, with a similar presentation to invasive fungal rhinosinusitis (IFRS). The goal of this case report and systematic review is to

[Ischemic testicular necrosis following vasectomy: rare and typical complications of an outpatient procedure].

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Taking the clinical case of a patient who developed unilateral testicular necrosis following vasectomy as a starting point, the early and late complications of this procedure are described based on a literature review.In the USA 7% of all men undergo vasectomy, as compared to 2% in Germany. Early

Idiopathic avascular necrosis of the capitate.

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Idiopathic avascular necrosis (AVN) of the capitate is rare. A 44-year-old woman presented with chronic pain in her dominant wrist without a history of trauma. Clinical and standard radiological examination were initially inconclusive, while MRI was diagnostic. Mid-carpal arthrodesis gave a

Evaluation of ischaemic necrosis of carpal bones by magnetic resonance imaging.

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Nine patients with chronic pain in the wrist were examined by M.R.I. to evaluate its accuracy in the detection of ischaemic necrosis of carpal bones. In seven patients, M.R.I. confirmed scintigraphic and radiographic signs of ischaemic necrosis. In two patients with radionuclide accumulations,

Polysaccharide glucomannan isolated from Heterodermia obscurata attenuates acute and chronic pain in mice.

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Glucomannan (GM) is a polysaccharide obtained from Heterodermia obscurata lichens. The present study was conducted to elucidate the antinociceptive effect of GM in behavioural models of acute and chronic pain in mice. GM reduced mechanical allodynia and the levels of interleukin 1-β (IL-1β) in

The dissipation of neuropathic pain paradoxically involves the presence of tumor necrosis factor-alpha (TNF).

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Neuropathic pain, a chronic disabling pain arising from nerve injury, develops a central component. In brain neurons, tumor necrosis factor-alpha (TNF) levels intensify and TNF-inhibition of norepinephrine (NE) release, dependent upon alpha(2)-adrenergic activation, amplifies during neuropathic pain

Gene therapy directed at the neuroimmune component of chronic pain with particular attention to the role of TNF alpha.

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Identification that neuroimmune activation in the spinal cord is an important factor in the development of chronic pain has opened the possibility that gene transfer of anti-inflammatory peptides may be used to reduce pain neurotransmission. We review the published evidence regarding gene transfer

Role of interleukin-1beta and tumor necrosis factor-alpha-dependent expression of cyclooxygenase-2 mRNA in thermal hyperalgesia induced by chronic inflammation in mice.

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The present study investigated whether the endogenous pro-inflammatory cytokines [interleukin (IL)-1beta and tumor necrosis factor-alpha (TNF-alpha)]-dependent expression of cyclooxygenase-2 (COX-2) mRNA within the spinal cord could be involved in the development of chronic inflammatory pain-like

Antinociception mediated by alpha(2)-adrenergic activation involves increasing tumor necrosis factor alpha (TNFalpha) expression and restoring TNFalpha and alpha(2)-adrenergic inhibition of norepinephrine release.

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The central component that establishes chronic pain from peripheral nerve injury is associated with increased tumor necrosis factor-alpha (TNFalpha) production in the brain. This study examined TNFalpha and its reciprocally permissive role with alpha(2)-adrenergic activation during peak and

The Role of Cytokines in the Initiation and Maintenance of Chronic Pain.

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Recent advancements in the pain field have identified a central nervous system (CNS) neuroimmune response that may act as the driving force for neuronal hypersensitivity, the pathological correlate to chronic pain following peripheral nerve injury. Neuroimmune activation involves the activation of

[Lysophosphatidic Acid Receptor Signaling Underlying Chronic Pain and Neuroprotective Mechanisms through Prothymosin α].

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For my Ph.D. research topic, I isolated endogenous morphine-like analgesic dipeptide, kyotorphin, which mediates Met-enkephalin release, and discovered kyotorphin synthetase, a putative receptor and antagonist. Furthermore, I succeeded in purifying μ-opioid receptor and functional reconstitution

Age-dependent sexual dimorphism in susceptibility to develop chronic pain in the rat.

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Neonatal pain has been suggested to contribute to the development and/or persistence of adult pain. Observations from animal models have shown that neonatal inflammation produces long-term changes in sensory neuron function, which can affect the susceptibility of adults to develop persistent pain.

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