نتایج جستجو برای: neuropathic itch
تعداد نتایج: 14850 فیلتر نتایج به سال:
Chronic itch, or pruritus, is associated with a wide range of skin abnormalities. The mechanisms responsible for chronic itch induction and persistence remain unclear. We developed a mouse model in which a constitutively active form of the serine/threonine kinase BRAF was expressed in neurons gated by the sodium channel Nav1.8 (BRAF(Nav1.8) mice). We found that constitutive BRAF pathway activat...
The neurophysiology of itch, the dominant symptom of skin disease, has previously received scant attention. Recent advances in the neurophysiology and molecular basis of itch include the use of microneurography to demonstrate the existence of a subset of itch-dedicated afferent C neurons distinct from neurons which transmit pain; use of functional positron emission tomography (PET) and magnetic...
How neuropeptides in the primate spinal cord regulate itch and pain is largely unknown. Here we elucidate the sensory functions of spinal opioid-related peptides and gastrin-releasing peptide (GRP) in awake, behaving monkeys. Following intrathecal administration, β-endorphin (10-100 nmol) and GRP (1-10 nmol) dose-dependently elicit the same degree of robust itch scratching, which can be inhibit...
The perception of itch in primary biliary cirrhosis (PBC) is not characterized. Patients with primary biliary cirrhosis who were members of the PBCers Organization were invited to participate in an on-line survey addressing certain characteristics of their itch. Patients used their own words in the questions that asked for descriptions. A total of 238 subjects responded to the survey; of these,...
BACKGROUND Pruritus is a common and frustrating symptom in hemodialysis (HD) patients and 5-D itch scale is proposed as a reliable measurement of pruritus. However, information regarding 5-D itch scale categories is currently unavailable. We explored optimal cut-offs 5-D itching scale based on numerical rating scale (NRS) categories in HD patients. METHODS Four hundred and nine HD patients in...
BACKGROUND AND OBJECTIVES Itch is one of the major symptoms in dermatology clinics, and severely impairs the quality of life. Itch is frequently produced by environmental stimuli, especially heat or warmth. Changes of temperature on the skin surface and noxious heat stimuli augment and develop itch, respectively. Thermally provoked itch is sometimes intractable with existing treatments. DATA ...
About one person in four or five is conscious that scratching an irritation may produce an itch elsewhere. The sensation is well localised, comes and goes quickly, and recurs when scratching is repeated a short while later. Scratch and referred itch are ipsilateral; scratching the site of the referred itch does not cause the original spot to itch. Scatching face, palms, or soles does not produc...
Itch is immensely frustrating. Most studies focus on the cause of itch. In this issue of Neuron, Kardon et al. (2014) find that itch can be modulated by inhibitory neurons that produce dynorphin, an endogenous agonist of κ-opioid receptors.
itching is one of the most common skin symptoms. generalized pruritus occurs in 1-8% of pregnant women. it can create unpleasant feeling for these women especially at nights. most pregnant women avoid using synthetic drugs because of their side effects. peppermint is a plant which has been used as a traditional drug in iran. it decreases skin’s temperature. this study was done to determine the ...
BACKGROUND The homologous to the E6-AP carboxyl terminus (HECT)-type ubiquitin E3 ligase ITCH is an enzyme that plays a pivotal role in posttranslational modification by ubiquitin proteasomal protein degradation. Thioredoxin-interacting protein (TXNIP) is a negative regulator of the thioredoxin system and an endogenous reactive oxygen species scavenger. In the present study, we focused on the f...
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