نتایج جستجو برای: neuropathic itch

تعداد نتایج: 14850  

Journal: :The Journal of clinical investigation 2013
Zhong-Qiu Zhao Fu-Quan Huo Joseph Jeffry Lori Hampton Shadmehr Demehri Seungil Kim Xian-Yu Liu Devin M Barry Li Wan Zhong-Chun Liu Hui Li Ahu Turkoz Kaijie Ma Lynn A Cornelius Raphael Kopan James F Battey Jian Zhong Zhou-Feng Chen

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...

Journal: :Annals of the Academy of Medicine, Singapore 2007
Malcolm W Greaves

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...

2015
Heeseung Lee Mei-Chuan Ko

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...

2007
Nora V. Bergasa

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,...

2017
Jia-Wen Lai Hung-Chih Chen Che-Yi Chou Hung-Rong Yen Tsai-Chung Li Mao-Feng Sun Hen-Hong Chang Chiu-Ching Huang Fuu-Jen Tsai Johannes Tschen Chiz-Tzung Chang

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...

2016
H. Murota I. Katayama

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 ...

Journal: :British medical journal 1976
P R Evans

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...

Journal: :Neuron 2014
Paula Juliana Seadi Pereira Ethan A. Lerner

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.

Journal: :the iranian journal of pharmaceutical research 0
marjan akhavan amjadi department of midwifery, islamic azad university, rasht, iran. faraz mojab pharmaceutical sciences research center (psrc), shahid beheshti university of medical sciences, tehran, iran. department of pharmacognosy and pharmacobiotechnology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. seyedeh bahareh kamranpour department of midwifery, islamic azad university, rasht, iran.

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 ...

Journal: :Journal of the American Heart Association 2016
Yoichiro Otaki Hiroki Takahashi Tetsu Watanabe Akira Funayama Shunsuke Netsu Yuki Honda Taro Narumi Shinpei Kadowaki Hiromasa Hasegawa Shintaro Honda Takanori Arimoto Tetsuro Shishido Takuya Miyamoto Hideaki Kamata Osamu Nakajima Isao Kubota

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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