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https://www.readbyqxmd.com/read/28330877/k-channel-modulatory-subunits-kchip-and-dpp-participate-in-kv4-mediated-mechanical-pain-control
#1
Yen-Ling Kuo, Jen-Kun Cheng, Wen-Hsien Hou, Yu-Cheng Chang, Po-Hao Du, Jhao-Jun Jian, Ruey-Horng Rau, Jung-Hui Yang, Cheng-Chang Lien, Meei-Ling Tsaur
The K(+) channel pore-forming subunit Kv4.3 is expressed in a subset of non-peptidergic nociceptors within the dorsal root ganglion (DRG), and knockdown of Kv4.3 selectively induces mechanical hypersensitivity, a major symptom of neuropathic pain. K(+) channel modulatory subunits KChIP1, KChIP2 and DPP10 are coexpressed in Kv4.3(+) DRG neurons, but whether they participate in Kv4.3-mediated pain control is unknown. Here, we show the existence of a Kv4.3/KChIP1/KChIP2/DPP10 complex (abbreviated as the Kv4 complex) in the endoplasmic reticulum and cell surface of DRG neurons...
March 22, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28326931/overexpression-of-suppressor-of-cytokine-signaling-3-in-dorsal-root-ganglion-attenuates-cancer-induced-pain-in-rats
#2
Jinrong Wei, Meng Li, Dieyu Wang, Hongyan Zhu, Xiangpeng Kong, Shusheng Wang, You-Lang Zhou, Zhong Ju, Guang-Yin Xu, Guo-Qin Jiang
Background Cancer-induced pain (CIP) is one of the most severe types of chronic pain with which clinical treatment remains challenging and the involved mechanisms are largely unknown. Suppressor of cytokine signaling 3 (SOCS3) is an important intracellular protein and provides a classical negative feedback loop, thus involving in a wide variety of processes including inflammation and nociception. However, the role of SOCS3 pathway in CIP is poorly understood. The present study was designed to investigate the role of SOCS3 in dorsal root ganglion (DRG) in the development of CIP...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28318504/-economic-evaluation-of-medical-devices-not-included-in-the-french-list-of-products-and-services-qualifying-for-reimbursement-example-of-biologic-meshes
#3
A Sainfort, I Denis-Hallouard, G Aulagner, O Nuiry, X Armoiry
OBJECTIVES: To present a method aimed to evaluate the economic impact associated with the use of medical devices (DM) not reimbursed in addition to diagnosis related groups (DRGs) tariffs using the example of biological meshes for parietal reinforcement. METHODS: In this multicenter retrospective cohort study, we included all patients who received a biological mesh between January 2010-April 2014 (University hospitals of Saint-Étienne, France) or between January 2010-March 2015 (Lyon University hospitals, France)...
March 16, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28299349/gabapentin-inhibits-protein-kinase-c-epsilon-translocation-in-cultured-sensory-neurons-with-additive-effects-when-coapplied-with-paracetamol-acetaminophen
#4
Vittorio Vellani, Chiara Giacomoni
Gabapentin is a well-established anticonvulsant drug which is also effective for the treatment of neuropathic pain. Although the exact mechanism leading to relief of allodynia and hyperalgesia caused by neuropathy is not known, the blocking effect of gabapentin on voltage-dependent calcium channels has been proposed to be involved. In order to further evaluate its analgesic mechanisms, we tested the efficacy of gabapentin on protein kinase C epsilon (PKCε) translocation in cultured peripheral neurons isolated from rat dorsal root ganglia (DRGs)...
2017: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28293640/cost-analysis-of-a-novel-enzymatic-debriding-agent-for-management-of-burn-wounds
#5
Giuseppe Giudice, Angela Filoni, Giulio Maggio, Domenico Bonamonte, Michelangelo Vestita
Introduction. Given its efficacy and safety, NexoBrid™ (NXB) has become part of our therapeutic options in burns treatment with satisfactory results. However, no cost analysis comparing NXB to the standard of care (SOC) has been carried out as of today. Aim. To assess the cost of treatment with NXB and compare it to the SOC cost. Methods. 20 patients with 14-22% of TBSA with an intermediate-deep thermal burn related injury were retrospectively and consecutively included. 10 of these patients were treated with the SOC, while the other 10 with NXB...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28271659/effects-of-electroacupuncture-at-2-and-100-hz-on-rat-type-2-diabetic-neuropathic-pain-and-hyperalgesia-related-protein-expression-in-the-dorsal-root-ganglion
#6
Xiao-Fen He, Jun-Jun Wei, Sheng-Yun Shou, Jian-Qiao Fang, Yong-Liang Jiang
OBJECTIVE: To investigate the analgesic effects of electroacupuncture (EA) at 2 and 100 Hz on type 2 diabetic neuropathic pain (DNP) and on the expressions of the P2X3 receptor and calcitonin gene-related peptide (CGRP) in the dorsal root ganglion (DRG). METHODS: Rat type 2 DNP was induced by a high calorie and high sugar diet fed for 7 weeks, plus a single intraperitoneal injection of streptozotocin (STZ) after 5 weeks. EA at 2 and 100 Hz was carried out once every day after 7 weeks for 7 consecutive days...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28253350/sox10-contributes-to-the-balance-of-fate-choice-in-dorsal-root-ganglion-progenitors
#7
Mariana Delfino-Machín, Romain Madelaine, Giorgia Busolin, Masataka Nikaido, Sarah Colanesi, Karen Camargo-Sosa, Edward W P Law, Stefano Toppo, Patrick Blader, Natascia Tiso, Robert N Kelsh
The development of functional peripheral ganglia requires a balance of specification of both neuronal and glial components. In the developing dorsal root ganglia (DRGs), these components form from partially-restricted bipotent neuroglial precursors derived from the neural crest. Work in mouse and chick has identified several factors, including Delta/Notch signaling, required for specification of a balance of these components. We have previously shown in zebrafish that the Sry-related HMG domain transcription factor, Sox10, plays an unexpected, but crucial, role in sensory neuron fate specification in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28250634/sudden-death-and-cervical-spine-a-new-contribution-to-pathogenesis-for-sudden-death-in-critical-care-unit-from-subarachnoid-hemorrhage-first-report-an-experimental-study
#8
Hizir Kazdal, Ayhan Kanat, Mehmet Dumlu Aydin, Ugur Yazar, Ali Riza Guvercin, Muhammet Calik, Betul Gundogdu
CONTEXT: Sudden death from subarachnoid hemorrhage (SAH) is not uncommon. AIMS: The goal of this study is to elucidate the effect of the cervical spinal roots and the related dorsal root ganglions (DRGs) on cardiorespiratory arrest following SAH. SETTINGS AND DESIGN: This was an experimental study conducted on rabbits. MATERIALS AND METHODS: This study was conducted on 22 rabbits which were randomly divided into three groups: control (n = 5), physiologic serum saline (SS; n = 6), SAH groups (n = 11)...
January 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28231559/prostate-cancer-heterogeneity-discovering-novel-molecular-targets-for-therapy
#9
REVIEW
Chiara Ciccarese, Francesco Massari, Roberto Iacovelli, Michelangelo Fiorentino, Rodolfo Montironi, Vincenzo Di Nunno, Francesca Giunchi, Matteo Brunelli, Giampaolo Tortora
Prostate cancer (PCa) shows a broad spectrum of biological and clinical behavior, which represents the epiphenomenon of an extreme genetic heterogeneity. Recent genomic profiling studies have deeply improved the knowledge of the genomic landscape of localized and metastatic PCa. The AR and PI3K/Akt/mTOR signaling pathways are the two most frequently altered, representing therefore interestingly targets for therapy. Moreover, somatic or germline aberrations of DNA repair genes (DRGs) have been observed at high frequency, supporting the potential role of platinum derivatives and PARP inhibitors as effective therapeutic strategies...
March 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28223844/neuronal-plasticity-of-trigeminal-ganglia-in-mice-following-nerve-injury
#10
Randi Lynds, Chuang Lyu, Gong-Wei Lyu, Xie-Qi Shi, Annika Rosén, Kamal Mustafa, Tie-Jun Sten Shi
BACKGROUND: Nerve injury may induce neuropathic pain. In studying the mechanisms of orofacial neuropathic pain, attention has been paid to the plastic changes that occur in the trigeminal ganglia (TGs) and nucleus in response to an injury of the trigeminal nerve branches. Previous studies have explored the impact of sciatic nerve injury on dorsal root ganglia (DRGs) and it has shown dramatic changes in the expression of multiple biomarkers. In large, the changes in biomarker expression in TGs after trigeminal nerve injury are similar to that in DRGs after sciatic nerve injury...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28217384/decreasing-hospital-length-of-stay-following-lumbar-fusion-utilizing-multidisciplinary-committee-meetings-involving-surgeons-and-other-caretakers
#11
Lisa B E Shields, Lisa Clark, Steven D Glassman, Christopher B Shields
BACKGROUND: Although hospital length of stay (LOS) following lumbar fusion has decreased for a variety of reasons, different institutions find their LOS over the benchmarks published by the national Agency for Healthcare Research and Quality (AHRQ). Over a 3-year period, this prospective study introduced utilization of multidisciplinary committee meetings between surgeons and other caretakers to decrease LOS following spinal fusion surgery without compromising the quality of care. METHODS: A multidisciplinary committee was established to assess factors and institute recommendations that influence hospital LOS following lumbar fusion compared to the national compared to the national AHRQ benchmark at baseline and at 1 and 2 years after adjusting our standard practice...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28206966/impact-of-dna-repair-gene-polymorphisms-on-the-risk-of-biochemical-recurrence-after-radiotherapy-and-overall-survival-in-prostate-cancer
#12
Chiara Zanusso, Roberto Bortolus, Eva Dreussi, Jerry Polesel, Marcella Montico, Erika Cecchin, Sara Gagno, Flavio Rizzolio, Mauro Arcicasa, Giacomo Novara, Giuseppe Toffoli
The identification of biomarkers of biochemical recurrence (BCR) in prostate cancer (PCa) patients undergoing radiotherapy (RT) represents an unanswered clinical issue. The primary aim of this study was the definition of new genetic prognostic biomarkers in DNA repair genes (DRGs), considering both BCR and overall survival (OS) as clinical end-points. The secondary aim was to explore the potential clinical impact of these genetic variants with the decision curve analysis (DCA) and the sensitivity analysis.We analyzed 22 germline polymorphisms in 14 DRGs on 542 Caucasian PCa patients treated with RT as primary therapy...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28199982/n-acetyl-cysteine-attenuates-remifentanil-induced-postoperative-hyperalgesia-via-inhibiting-matrix-metalloproteinase-9-in-dorsal-root-ganglia
#13
Yue Liu, Yuan Ni, Wei Zhang, Yu-E Sun, Zhengliang Ma, Xiaoping Gu
Treatment of remifentanil-induced postoperative hyperalgesia (RIH) remains a clinical challenge because the mechanisms are not fully understood. Matrix metalloproteinase-9 (MMP-9) is a key component in neuroinflammation because of its facilitation of pro-inflammatory cytokine maturation. Therefore, inhibition of MMP-9 may represent a novel therapeutic approach to the treatment of RIH. Sprague-Dawley rats were randomly divided into three groups: Control, Incision and Remifentanil. A right plantar surgical incision was performed in Group Incision, and intraoperative remifentanil (0...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28197547/neural-progenitor-cells-promote-axonal-growth-and-alter-axonal-mrna-localization-in-adult-neurons
#14
Tanuja T Merianda, Ying Jin, Ashley L Kalinski, Pabitra K Sahoo, Itzhak Fischer, Jeffery L Twiss
The inhibitory environment of the spinal cord and the intrinsic properties of neurons prevent regeneration of axons following CNS injury. However, both ascending and descending axons of the injured spinal cord have been shown to regenerate into grafts of embryonic neural progenitor cells (NPCs). Previous studies have shown that grafts composed of glial-restricted progenitors (GRPs) and neural-restricted progenitors (NRPs) can provide a permissive microenvironment for axon growth. We have used cocultures of adult rat dorsal root ganglion (DRG) neurons together with NPCs, which have shown significant enhancement of axon growth by embryonic rat GRP and GRPs/NRPs, both in coculture conditions and when DRGs are exposed to conditioned medium from the NPC cultures...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28183657/production-and-in-vitro-evaluation-of-macroporous-cell-encapsulating-alginate-fibres-for-nerve-repair
#15
Sharon Chien-Yu Lin, Yiwei Wang, David F Wertheim, Allan G A Coombes
The prospects for successful peripheral nerve repair using fibre guides are considered to be enhanced by the use of a scaffold material, which promotes attachment and proliferation of glial cells and axonal regeneration. Macroporous alginate fibres were produced by extraction of gelatin particle porogens from wet spun fibres produced using a suspension of gelatin particles in 1.5% w/v alginate solution. Gelatin loading of the starting suspension of 40.0, 57.0, and 62.5% w/w resulted in gelatin loading of the dried alginate fibres of 16, 21, and 24% w/w respectively...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28161248/how-is-chronic-pain-related-to-sympathetic-dysfunction-and-autonomic-dysreflexia-following-spinal-cord-injury
#16
Edgar T Walters
Autonomic dysreflexia (AD) and neuropathic pain occur after severe injury to higher levels of the spinal cord. Mechanisms underlying these problems have rarely been integrated in proposed models of spinal cord injury (SCI). Several parallels suggest significant overlap of these mechanisms, although the relationships between sympathetic function (dysregulated in AD) and nociceptive function (dysregulated in neuropathic pain) are complex. One general mechanism likely to be shared is central sensitization - enhanced responsiveness and synaptic reorganization of spinal circuits that mediate sympathetic reflexes or that process and relay pain-related information to the brain...
January 27, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28158164/rapid-and-delayed-effects-of-pulsed-radiofrequency-on-neuropathic-pain-electrophysiological-molecular-and-behavioral-evidence-supporting-long-term-depression
#17
Ren-Yu Huang, Chia-Chi Liao, Shih-Ying Tsai, Chen-Tung Yen, Chii-Wann Lin, Tsung-Chi Chen, Wei-Tso Lin, Chi-Heng Chang, Yeong-Ray Wen
BACKGROUND: Pulsed radiofrequency (PRF) has been widely employed for ameliorating clinical neuropathic pain. How PRF alters electrophysiological transmission and modulates biomolecular functions in neural tissues has yet to be clarified. We previously demonstrated that an early application of low-voltage bipolar PRF adjacent to the dorsal root ganglion (DRG) reduced acute neuropathic pain in animals. By contrast, the present study investigated how PRF alters postsynaptic sensitization to produce early and delayed effects on neuropathic pain...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28134789/mrpl10-and-tbp-are-suitable-reference-genes-for-peripheral-nerve-crush-injury
#18
Yaxian Wang, Qianqian Shan, Yali Meng, Jiacheng Pan, Sheng Yi
Peripheral nerve injury triggers the dysregulation of a large number of genes at multiple sites, including neurons, peripheral nerve stump, and the target organ. Housekeeping genes were frequently used as reference genes to normalize the expression values of target genes. Suitable selection of housekeeping genes that are stably expressed after nerve injury minimizes bias elicited by reference genes and thus helps to better and more sensitively reflect gene expression changes. However, many housekeeping genes have been used as reference genes without testing the expression patterns of themselves...
January 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28126736/rna-editing-enzyme-adar2-is-a-mediator-of-neuropathic-pain-after-peripheral-nerve-injury
#19
Hitoshi Uchida, Shinji Matsumura, Shunpei Okada, Tsutomu Suzuki, Toshiaki Minami, Seiji Ito
Transcriptional and post-translational regulations are important in peripheral nerve injury-induced neuropathic pain, but little is known about the role of post-transcriptional modification. Our objective was to determine the possible effect of adenosine deaminase acting on RNA (ADAR) enzymes, which catalyze post-transcriptional RNA editing, in tactile allodynia, a hallmark of neuropathic pain. Seven days after L5 spinal nerve transection (SNT) in adult mice, we found an increase in ADAR2 expression and a decrease in ADAR3 expression in the injured, but not in the uninjured, dorsal root ganglions (DRGs)...
January 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28067383/the-functional-consequences-and-prognostic-value-of-dosage-sensitivity-in-ovarian-cancer
#20
Zichuang Yan, Yongjing Liu, Yunzhen Wei, Ning Zhao, Qiang Zhang, Cheng Wu, Zhiqiang Chang, Yan Xu
Copy number alteration (CNA) represents an important class of genetic variations that may contribute to tumorigenesis, tumor growth and metastatic spread. CNA can directly affect the expression of genes within the CNA regions; however, genes within the CNA regions exhibit heterogeneity in gene dosage sensitivity. In this study, a computational framework was built to identify 1170 dosage-sensitive genes (DSGs) and 1215 dosage-resistant genes (DRGs) that were related to ovarian serous cystadenocarcinoma (OV) through the association between CNA and gene expression...
January 9, 2017: Molecular BioSystems
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