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https://www.readbyqxmd.com/read/29150838/gi-530159-a-novel-selective-mechano-sensitive-k2p-channel-opener-reduces-rat-dorsal-root-ganglion-drg-neuron-excitability
#1
Alexandre J C Loucif, Pierre-Philippe Saintot, Jia Liu, Brett M Antonio, Shannon G Zellmer, Katrina Yoger, Emma L Veale, Anna Wilbrey, Kiyoyuki Omoto, Lishuang Cao, Alex Gutteridge, Neil A Castle, Edward B Stevens, Alistair Mathie
BACKGROUND AND PURPOSE: TREK two pore domain potassium channels play a critical role in regulating the excitability of somatosensory nociceptive neurons and are important mediators of pain perception. An understanding of the roles of TREK channels in pain perception and, indeed, in other pathophysiological conditions, has been severely hampered by the lack of potent and/or selective activators and inhibitors. In this study we describe a new, selective opener of TREK channels, GI-530159 (4,4'-(Hexafluoroisopropylidene)bis(p-phenyleneoxy)dianiline)...
November 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29149775/lentiviral-vectors-and-adeno-associated-virus-vectors-useful-tools-for-gene-transfer-in-pain-research
#2
REVIEW
Zheng Chen-Xi, Wang Sheng-Ming, Bai Yun-Hu, Luo Ting-Ting, Wang Jia-Qi, Dai Chun-Qiu, Guo Bao-Lin, Luo Shi-Cheng, Wang Dong-Hui, Yang Yan-Ling, Wang Ya-Yun
Pain, especially chronic pain, has always been a heated point in both basic and clinical researches since it puts heavy burdens on both individuals and the whole society. A better understanding of the role of biological molecules and various ionic channels involved in pain can shed light on the mechanism under pain and advocate the development of pain management. Using viral vectors to transfer specific genes at targeted sites is a promising method for both research and clinical applications. Lentiviral vectors and adeno-associated virus (AAV) vectors which allow stable and long-term expression of transgene in non-dividing cells are widely applied in pain research...
November 17, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29143954/-why-dutch-mental-health-care-practitioners-should-have-second-thoughts-about-adopting-the-english-cluster-model
#3
T G Broekman, G M Schippers
Administrators and policymakers in the Netherlands have concluded, after considerable deliberation, that the existing Dutch diagnosis-related group (drg)-based system of diagnosis treatment combinations for funding mental health care should be replaced by the so-called English model. The details, however, need to be analysed very carefully by Dutch professional health care practitioners.<br/> AIM: To make the reader aware of the reasons why the English model should not be adopted in the Netherlands.<br/> METHOD: We describe and analyse the English cluster model and the referral instrument (the Honos, supplemented by six items) and we demonstrate how it is applied in England...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29143369/detection-of-adverse-drug-reactions-evaluation-of-an-automatic-data-processing-applied-in-oncology-performed-in-the-french-drg-database
#4
Alexandre Quillet, Olivier Colin, Nicolas Bourgeois, Sylvie Favrelière, Aurélie Ferru, Laurence Boinot, Claire Lafay-Chebassier, Marie-Christine Perault-Pochat
The aim of this study was to assess an automated detection method of serious adverse reactions induced by oral targeted therapy (OTT) in patients with cancer, performed in the French Diagnosis Related Groups (DRG) database. Cancer patients of the Poitiers hospital who started an OTT between 2014 and 2015 were included. This study focused on adverse drug reaction which required inpatient hospitalization (ADRh ). All diagnoses coded in the DRG database for hospital stays that occurred within three months after OTT initiation were collected (potential ADRh )...
November 15, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29141269/-practice-guideline-autoimmune-liver-diseases-awmf-reg-no-021-27
#5
(no author information available yet)
The guideline was created under the leadership of the DGVS and with participation of neighbouring scientific societies and is intended as a practical aid for the diagnosis and therapy of autoimmune liver diseases. The aim is to represent the current state of science, promote the recognition of the disease and improve the treatment of patients.
November 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/29141003/trpa1-and-trpv1-are-required-for-lidocaine-evoked-calcium-influx-and-neuropeptide-release-but-not-cytotoxicity-in-mouse-sensory-neurons
#6
Mirjam Eberhardt, Thomas Stueber, Jeanne de la Roche, Christine Herzog, Andreas Leffler, Peter W Reeh, Katrin Kistner
BACKGROUND: Local anaesthetics (LA) reduce neuronal excitability by inhibiting voltage-gated Na+ channels. When applied at high concentrations in the direct vicinity of nerves, LAs can also induce relevant irritation and neurotoxicity via mechanisms involving an increase of intracellular Ca2+. In the present study we explored the role of the Ca2+-permeable ion channels TRPA1 and TRPV1 for lidocaine-induced Ca2+-influx, neuropeptide release and neurotoxicity in mouse sensory neurons. METHODS: Cultured dorsal root ganglion (DRG) neurons from wildtype and mutant mice lacking TRPV1, TRPA1 or both channels were explored by means of calcium imaging, whole-cell patch clamp recordings and trypan blue staining for cell death...
2017: PloS One
https://www.readbyqxmd.com/read/29135661/reconsidering-the-affordable-care-act-s-restrictions-on-physician-owned-hospitals-analysis-of-cms-data-on-total-hip-and-knee-arthroplasty
#7
P Maxwell Courtney, Brian Darrith, Daniel D Bohl, Nicholas B Frisch, Craig J Della Valle
BACKGROUND: Concerns about financial incentives and increased costs prompted legislation limiting the expansion of physician-owned hospitals in 2010. Supporters of physician-owned hospitals argue that they improve the value of care by improving quality and reducing costs. The purpose of the present study was to determine whether physician-owned and non-physician-owned hospitals differ in terms of costs, outcomes, and patient satisfaction in the setting of total hip arthroplasty (THA) and total knee arthroplasty (TKA)...
November 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29135586/increased-hyperalgesia-and-proinflammatory-cytokines-in-the-spinal-cord-and-dorsal-root-ganglion-after-surgery-and-or-fentanyl-administration-in-rats
#8
Lu Chang, Fang Ye, Quehua Luo, Yuanxiang Tao, Haihua Shu
BACKGROUND: Perioperative fentanyl has been reported to induce hyperalgesia and increase postoperative pain. In this study, we tried to investigate behavioral hyperalgesia, the expression of proinflammatory cytokines, such as interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α), and the activation of microglia in the spinal cord and dorsal root ganglion (DRG) in a rat model of surgical plantar incision with or without perioperative fentanyl. METHODS: Four groups of rats (n = 32 for each group) were subcutaneously injected with fentanyl at 60 μg/kg or normal saline for 4 times with 15-minute intervals...
November 10, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29131007/proteinase-activated-receptor-2-sensitivity-of-amplified-trpa1-activity-in-skeletal-muscle-afferent-nerves-and-exercise-pressor-reflex-in-rats-with-femoral-artery-occlusion
#9
Jihong Xing, Jianhua Li
BACKGROUND/AIMS: Limb ischemia occurs in peripheral artery disease (PAD). Sympathetic nerve activity (SNA) that regulates blood flow directed to the ischemic limb is exaggerated during exercise in this disease, and transient receptor potential channel A1 (TRPA1) in thin-fiber muscle afferents contributes to the amplified sympathetic response. The purpose of the present study was to determine the role of proteinase-activated receptor-2 (PAR2) in regulating abnormal TRPA1 function and the TRPA1-mediated sympathetic component of the exercise pressor reflex...
November 6, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29129814/zinc-deficiency-promotes-cystitis-related-bladder-pain-by-enhancing-function-and-expression-of-cav3-2-in-mice
#10
Tomoka Ozaki, Junki Matsuoka, Maho Tsubota, Shiori Tomita, Fumiko Sekiguchi, Takeshi Minami, Atsufumi Kawabata
Cav3.2 T-type Ca(2+) channel activity is suppressed by zinc that binds to the extracellular histidine-191 of Cav3.2, and enhanced by H2S that interacts with zinc. Cav3.2 in nociceptors is upregulated in an activity-dependent manner. The enhanced Cav3.2 activity by H2S formed by the upregulated cystathionine-γ-lyase (CSE) is involved in the cyclophosphamide (CPA)-induced cystitis-related bladder pain in mice. We thus asked if zinc deficiency affects the cystitis-related bladder pain in mice by altering Cav3...
November 9, 2017: Toxicology
https://www.readbyqxmd.com/read/29129206/differential-cytotoxicity-and-intracellular-calcium-signalling-following-activation-of-the-calcium-permeable-ion-channels-trpv1-and-trpa1
#11
Thomas Stueber, Mirjam J Eberhardt, Yaki Caspi, Shaya Lev, Alexander Binshtok, Andreas Leffler
Several members of the transient receptor channel (TRP) family can mediate a calcium-dependent cytotoxicity. In sensory neurons, vanilloids like capsaicin induce neurotoxicity by activating TRPV1. The closely related ion channel TRPA1 is also activated by irritants, but it is unclear if and how TRPA1 mediates cell death. In the present study we explored cytotoxicity and intracellular calcium signalling resulting from activation of TRPV1 and TRPA1, either heterologously expressed in HEK 293 cells or in native mouse dorsal root ganglion (DRG) neurons...
December 2017: Cell Calcium
https://www.readbyqxmd.com/read/29124365/change-in-reimbursement-and-costs-in-german-oncological-head-and-neck-surgery-over-the-last-decade-ablative-tongue-cancer-surgery-and-reconstruction-with-split-thickness-skin-graft-vs-microvascular-radial-forearm-flap
#12
Sebastian Hoefert, Oliver Lotter
OBJECTIVES: Defects after ablative tongue cancer surgery can be reconstructed by split-thickness skin grafts or free microvascular flaps. The different surgical options may influence costs, reimbursement, and therefore possible profits. Our goal was to analyze the development of these parameters for different procedures in head and neck reconstruction in Germany over the last decade. MATERIALS AND METHODS: After tumor resection and neck dissection of tongue cancer, three different scenarios were chosen to calculate costs, reimbursement, length of stay (LoS), and profits...
November 9, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29121912/the-exploration-of-medical-resources-utilization-among-inguinal-hernia-repair-in-taiwan-diagnosis-related-groups
#13
Yu-Hua Yan, Chih-Ming Kung, Yi Chen
BACKGROUND: This study centered on differences in medical costs, using the Taiwan diagnosis-related groups (Tw-DRGs) on medical resource utilization in inguinal hernia repair (IHR) in hospitals with different ownership to provide suitable reference information for hospital administrators. METHODS: The 2010-2011 data for three hospitals under different ownership were extracted from the Taiwan National Health Insurance claims database. A retrospective method was applied to analyze the age, sex, length of stay, diagnosis and surgical procedure code, and the change in financial risk of medical costs in IHR cases after introduction of Tw-DRGs...
November 9, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29119607/impaired-peripheral-nerve-regeneration-in-type-2-diabetic-mouse-model
#14
Pham Minh Vuong, H Tu Nguyen, Tayo Katano, Shinji Matsumura, Akira Saito, Akihiro Yamada, Hidemasa Furue, Seiji Ito
Peripheral neuropathy is one of the most common and serious complications of type-2 diabetes. Diabetic neuropathy is characterized by a distal symmetrical sensorimotor polyneuropathy, and its incidence increases in patients 40 years of age or older. In spite of extensive research over decades, there are few effective treatments for diabetic neuropathy besides glucose control and improved lifestyle. The earliest changes in diabetic neuropathy occur in sensory nerve fibers, with initial degeneration and regeneration resulting in pain...
November 9, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29117915/drg-migration-a-novel-measure-of-inefficient-surgical-care-in-a-value-based-world
#15
Byron D Hughes, Hemalkumar B Mehta, Eric Sieloff, Yong Shan, Anthony J Senagore
BACKGROUND: Diagnosis-Related Group (DRG) migration, DRG 331 to 330, is defined by the assignment to a higher cost DRG due only to post admission comorbidity or complications (CC). METHODS: We assessed the 5% national Medicare data set (2011-2014) for colectomy (DRG's 331/330), excluding present on admission CC's and selecting patients with one or more CC's post-admission to define the impact on payments, cost, and length of stay (LOS). RESULTS: The incidence of DRG migration was 14...
October 26, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/29117570/oxytocin-modulates-nociception-as-an-agonist-of-pain-sensing-trpv1
#16
Yelena Nersesyan, Lusine Demirkhanyan, Deny Cabezas-Bratesco, Victoria Oakes, Ricardo Kusuda, Tyler Dawson, Xiaohui Sun, Chike Cao, Alejandro Martin Cohen, Bharath Chelluboina, Krishna Kumar Veeravalli, Katharina Zimmermann, Carmen Domene, Sebastian Brauchi, Eleonora Zakharian
Oxytocin is a hormone with various actions. Oxytocin-containing parvocellular neurons project to the brainstem and spinal cord. Oxytocin release from these neurons suppresses nociception of inflammatory pain, the molecular mechanism of which remains unclear. Here, we report that the noxious stimulus receptor TRPV1 is an ionotropic oxytocin receptor. Oxytocin elicits TRPV1 activity in native and heterologous expression systems, regardless of the presence of the classical oxytocin receptor. In TRPV1 knockout mice, DRG neurons exhibit reduced oxytocin sensitivity relative to controls, and oxytocin injections significantly attenuate capsaicin-induced nociception in in vivo experiments...
November 7, 2017: Cell Reports
https://www.readbyqxmd.com/read/29115943/membrane-protein-nav1-7-contributes-to-the-persistent-post-surgical-pain-regulated-by-p-p65-in-dorsal-root-ganglion-drg-of-smir-rats-model
#17
Zhisong Li, Yaru Li, Jing Cao, Xuemin Han, Weihua Cai, Weidong Zang, Jitian Xu, Wei Zhang
BACKGROUND: Persistent post-surgical pain is a difficult clinical problem. In this study, we intend to explore the mechanism underlying the persistent post-surgical pain in SMIR (skin/muscle incision and retraction) rats. METHODS: First of all, the expression of membrane protein Nav1.7 and p-p65 (Phosphorylation of p65) were detected in ipsilateral L4-6 DRGs of SMIR rats by western-blot and immunostaining. Then with ProTx-II (Nav1.7 blocker) or PDTC (p65 inhibitor) were intrathecally injected while the change of Nav1...
November 7, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/29115922/the-prevalence-of-dementia-in-a-portuguese-community-sample-a-10-66-dementia-research-group-study
#18
Manuel Gonçalves-Pereira, Ana Cardoso, Ana Verdelho, Joaquim Alves da Silva, Manuel Caldas de Almeida, Alexandra Fernandes, Cátia Raminhos, Cleusa P Ferri, A Matthew Prina, Martin Prince, Miguel Xavier
BACKGROUND: Dementia imposes a high burden of disease worldwide. Recent epidemiological studies in European community samples are scarce. In Portugal, community prevalence data is very limited. The 10/66 Dementia Research Group (DRG) population-based research programmes are focused in low and middle income countries, where the assessments proved to be culture and education fair. We applied the 10/66 DRG prevalence survey methodology in Portugal, where levels of illiteracy in older populations are still high...
November 7, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/29114114/health-professionals-information-for-diagnostics-related-groups-drgs-with-the-use-of-a-website
#19
REVIEW
Aikaterini Bizopoulou, Andrianna Mangita, Costis Chardalias, Panagiotis Coutonias, Marianna Diomidous
Introduction: The aim of this research is to inform the health professionals about the ways of introducing and operating the the Diagnosis Related Groups (DRG's) system in the Hellenic National Health System, through the use of the development technologies. An effort is also made to explore the main dimensions of the implementation of the DRG's system, in specific European-Countries that have both adopted the public coverage schemes and the Bismarck health insurance institutions for countries with extensive experience in their implementation...
September 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29113923/effects-of-spinal-non-viral-interleukin-10-gene-therapy-formulated-with-d-mannose-in-neuropathic-interleukin-10-deficient-mice-behavioral-characterization-mrna-and-protein-analysis-in-pain-relevant-tissues
#20
Arden G Vanderwall, Shahani Noor, Melody S Sun, Jacob E Sanchez, Xuexian O Yang, Lauren L Jantzie, Nikolaos Mellios, Erin D Milligan
Studies show that spinal (intrathecal; i.t.) interleukin-10 (IL-10) gene therapy reverses neuropathic pain in animal models, and co-administration with the mannose receptor (MR; CD206) ligand d-mannose (DM) greatly improves therapeutic efficacy. However, the actions of endogenous IL-10 may be required for enduring pain control observed following i.t. IL-10 gene therapy, potentially narrowing the application of this non-viral transgene delivery approach. Here, we show that i.t. application of naked plasmid DNA expressing the IL-10 transgene co-injected with DM (DM/pDNA-IL-10) for the treatment of peripheral neuropathic pain in IL-10 deficient (IL-10 KO) mice results in a profound and prolonged bilateral pain suppression...
November 4, 2017: Brain, Behavior, and Immunity
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