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(Neuropathic Pain)

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https://www.readbyqxmd.com/read/30550994/kynurenic-acid-and-zaprinast-diminished-cxcl17-evoked-pain-related-behaviour-and-enhanced-morphine-analgesia-in-a-mouse-neuropathic-pain-model
#1
Ewelina Rojewska, Katarzyna Ciapała, Joanna Mika
BACKGROUND: The G protein-coupled receptor 35 (GPR35), is considered important for nociceptive transmission, as suggested by accumulating evidence. This receptor was discovered in 1998; however, a lack of pharmacological tools prevented a complete understanding of its function and how to exploit it therapeutically. We studied the influence of CXCL17, kynurenic acid and zaprinast on nociceptive transmission in naïve and neuropathic mice. Additionally, we investigated the influence of kynurenic acid and zaprinast on morphine effectiveness in neuropathic pain...
October 6, 2018: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/30550354/qapsa-post-marketing-surveillance-of-capsaicin-8-patch-for-long-term-use-in-patients-with-peripheral-neuropathic-pain-in-france
#2
Michel Lantéri-Minet, Serge Perrot
(236/250 words) Objective: To describe the characteristics of patients treated with the capsaicin 8% patch, prescribing conditions, long-term effects of repeat treatment on pain intensity and perception, quality of life, and impact on concomitant medication. METHODS: A national, longitudinal, prospective, non-interventional, post-marketing open study was conducted in 50 French pain centers. Adult volunteer non-diabetic patients with peripheral neuropathic pain receiving capsaicin 8% patch treatment were consecutively enrolled...
December 14, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/30549193/synthesis-and-biological-evaluation-of-%C3%AF-1-receptor-ligands-based-on-phenyl-1-2-4-oxadiazole-derivatives
#3
Xudong Cao, Zhongyuan Yao, Fei Dou, Yifang Zhang, Yinli Qiu, Song Zhao, Xiangqing Xu, Xin Liu, Bi-Feng Liu, Yin Chen, Guisen Zhang
In this study, a series of phenyl-1,2,4-oxadiazole derivatives was synthesized and evaluated for anti-allodynic activity. Structure activity relationship studies identified compound 39 with excellent affinity for the σ1 receptor and selectivity for the σ2 receptor, with poor activity to other central nervous system neurotransmitter receptors and transporters associated with pain. Compound 39 exhibited dose-dependent efficacy in suppressing the formalin-induced flinching and attenuating mechanical allodynia in chronic constriction injury-induced neuropathic rats...
December 13, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/30549060/validation-of-diagnostic-methods-for-traumatic-sensory-neuropathy-and-neuropathic-pain
#4
Tuija Teerijoki-Oksa, Heli Forssell, Satu K Jääskeläinen
INTRODUCTION: We evaluated diagnostic value of sensory tests during recovery from iatrogenic sensory neuropathy using intraoperatively verified nerve injury with subjective symptoms as gold standard. METHODS: Inferior alveolar nerves were monitored neurophysiologically throughout mandibular osteotomy in 19 patients. Sensory disturbance was registered and sensation tested using clinical and quantitative sensory (QST) and neurophysiologic tests postoperatively at 1, 3, 6, 12 months...
December 14, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/30548304/microrna-217-relieved-neuropathic-pain-through-targeting-toll-like-receptor-5-expression
#5
Wanwei Jiang, Qinghui Wang, Xuemei Yu, Tong Lu, Pengbo Zhang
Neuropathic pain is the most common chronic pain that is caused by nerve injury or disease that influences the nervous system. Increasing evidence suggested that microRNAs (miRNAs) play a crucial role in neuropathic pain and neuroinflammation development. However, the functional role of miR-217 in the development of neuropathic pain remains unknown. In this study, we used rats to establish a neuropathic pain model and showed that the miR-217 expression level was upregulated in the spinal dorsal horn of bilateral sciatic nerve chronic constriction injury (bCCI)...
December 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/30544683/treatment-of-pain-in-cancer-towards-personalised-medicine
#6
REVIEW
Marieke H J van den Beuken-van Everdingen, Sander M J van Kuijk, Daisy J A Janssen, Elbert A J Joosten
Despite increased attention to cancer pain, pain prevalence in patients with cancer has not improved over the last decade and one third of cancer patients on anticancer therapy and half of patients with advanced disease still suffer from moderate to severe pain. In this review, we explore the possible reasons for the ongoing high prevalence of cancer pain and discuss possible future directions for improvement in personalised pain management. Among possible reasons for the lack of improvement are: Barriers for patients to discuss pain with clinicians spontaneously; pain measurement instruments are not routinely used in daily practice; limited knowledge concerning the assessment of undertreatment; changes in patients' characteristics, including the ageing of the population; lack of significant improvement in the treatment of neuropathic pain; limitations of pharmacological treatment and lack of evidence-based nonpharmacological treatment strategies...
December 10, 2018: Cancers
https://www.readbyqxmd.com/read/30544296/medial-gamma-knife-thalamotomy-for-intractable-pain
#7
(no author information available yet)
OBJECTIVEAblative procedures are still useful in the treatment of intractable pain despite the proliferation of neuromodulation techniques. In the paper the authors present the results of Gamma Knife thalamotomy (GKT) in various pain syndromes.METHODSBetween 1996 and 2016, unilateral GKT was performed in 30 patients suffering from various severe pain syndromes in whom conservative treatment had failed. There were 20 women and 10 men in the study population, with a median age of 80 years (range 53-89 years)...
December 1, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/30543902/mesenchymal-stem-cells-therapy-enhances-the-efficacy-of-pregabalin-and-prevents-its-motor-impairment-in-paclitaxel-induced-neuropathy-in-rats-role-of-notch1-receptor-and-jak-stat-signaling-pathway
#8
Khaled F Al-Massri, Lamiaa A Ahmed, Hanan S El-Abhar
Peripheral neuropathy is a common adverse effect observed during use of paclitaxel (PTX) as chemotherapy. The present investigation was directed to estimate the modulatory effect of bone marrow derived mesenchymal stem cells (BM-MSCs) on pregabalin (PGB) treatment in PTX-induced peripheral neuropathy. Neuropathic pain was induced in rats by injecting PTX (2 mg/kg, i.p) 4 times every other day. Rats were then treated with PGB (30 mg/kg/day, p.o.) for 21 days with or without a single intravenous administration of BM-MSCs...
December 10, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/30542635/pregabalin-associated-discontinuation-symptoms-a-case-report
#9
Sadiq Naveed, Amber E Faquih, Amna Mohyud Din Chaudhary
Pregabalin is used for the treatment of neuropathic pain, partial seizures, generalized anxiety disorder, social anxiety disorder, and insomnia. The discontinuation symptoms of pregabalin are mild to moderate which resolve in about one week after the discontinuation of pregabalin. This case report describes the withdrawal symptoms in a 62-year-old patient despite a slow titration over a period of several weeks. It highlights the importance of cautious monitoring of withdrawal symptoms during the period of taper...
October 8, 2018: Curēus
https://www.readbyqxmd.com/read/30542282/sulforaphane-inhibited-the-nociceptive-responses-anxiety-and-depressive-like-behaviors-associated-with-neuropathic-pain-and-improved-the-anti-allodynic-effects-of-morphine-in-mice
#10
Pablo Ferreira-Chamorro, Alejandro Redondo, Gabriela Riego, Sergi Leánez, Olga Pol
Chronic neuropathic pain is associated with anxiety- and depressive-like disorders. Its treatment remains a serious clinical problem due to the lack of efficacy of the available therapeutic modalities. We investigated if the activation of the transcription factor Nrf2 could modulate the nociceptive and emotional disorders associated with persistent neuropathic pain and potentiated the analgesic activity of morphine. The possible mechanisms implicated in these effects have been also evaluated. Therefore, in C57BL/6 mice with neuropathic pain induced by the chronic constriction of the sciatic nerve (CCI), we assessed the antinociceptive, anxiolytic, and anti-depressant effects of the repeated intraperitoneal administration of a Nrf2 inducer, sulforaphane (SFN), and the effects of this treatment on the local antinociceptive actions of morphine...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/30542280/cannabinoids-and-pain-new-insights-from-old-molecules
#11
REVIEW
Sonja Vučković, Dragana Srebro, Katarina Savić Vujović, Čedomir Vučetić, Milica Prostran
Cannabis has been used for medicinal purposes for thousands of years. The prohibition of cannabis in the middle of the 20th century has arrested cannabis research. In recent years there is a growing debate about the use of cannabis for medical purposes. The term 'medical cannabis' refers to physician-recommended use of the cannabis plant and its components, called cannabinoids, to treat disease or improve symptoms. Chronic pain is the most commonly cited reason for using medical cannabis. Cannabinoids act via cannabinoid receptors, but they also affect the activities of many other receptors, ion channels and enzymes...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/30542262/strategies-for-targeted-delivery-to-the-peripheral-nerve
#12
REVIEW
Kelly A Langert, Eric M Brey
Delivery of compounds to the peripheral nervous system has the potential to be used as a treatment for a broad range of conditions and applications, including neuropathic pain, regional anesthesia, traumatic nerve injury, and inherited and inflammatory neuropathies. However, efficient delivery of therapeutic doses can be difficult to achieve due to peripheral neuroanatomy and the restrictiveness of the blood-nerve barrier. Depending on the underlying integrity of the blood-nerve barrier in the application at hand, several strategies can be employed to navigate the peripheral nerve architecture and facilitate targeted delivery to the peripheral nerve...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/30537520/diabetes-induced-neuropathic-mechanical-hyperalgesia-depends-on-p2x4-receptor-activation-in-dorsal-root-ganglia
#13
Juliana Maia Teixeira, Gilson Gonçalves Dos Santos, Amanda Ferreira Neves, Maria Carolina Pedro Athie, Ivan José Magayewski Bonet, Catarine Massucato Nishijima, Felipe Hertzing Farias, Jozi Godoi Figueiredo, Victor Hernandez-Olmos, Samer Alshaibani, Cláudia Herrera Tambeli, Christa E Müller, Carlos Amílcar Parada
Peripheral diabetic neuropathy (PDN) manifests in 50-60% of type I and II diabetic patients and is the major cause of limb amputation. Adequate therapy for PDN is a current challenge. There are evidences that the activation of the P2X4 receptor (P2X4R) expressed on microglial cells of the central nervous system takes part in the development of neuropathic pain. However, there is an open question: Is P2X4R activation on dorsal root ganglia (DRG) involved in the development of neuropathic pain? To answer this question, this study verified the involvement of P2X4R expressed in DRG cells on diabetes-induced neuropathic mechanical hyperalgesia in rats...
December 8, 2018: Neuroscience
https://www.readbyqxmd.com/read/30536992/trial-versus-no-trial-of-spinal-cord-stimulation-for-chronic-neuropathic-pain-cost-analysis-in-united-kingdom-national-health-service
#14
Rui V Duarte, Simon Thomson
OBJECTIVES: The aim of the current project was to evaluate the spinal cord stimulation (SCS) screening trial success rate threshold to obtain the same cost impact across two identical sets of patients following either a prolonged screening trial prior to implantation strategy or a full implant without a screening trial. MATERIALS AND METHODS: A cost impact analysis was carried out from a health care perspective and considered trial to implant rates reported in the literature...
December 10, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30534628/heme-oxygenase-1-inducer-and-carbon-monoxide-releasing-molecule-enhance-the-effects-of-gabapentinoids-by-modulating-glial-activation-during-neuropathic-pain-in-mice
#15
Kohei Godai, Yuichi Kanmura
Introduction: Neuropathic pain is one of the most difficult-to-treat symptoms. Although gabapentinoids are classified as first-line drugs, they have only modest efficacy. Objectives: The aim of this study was to investigate whether treatment with the heme oxygenase-1 (HO-1) inducer cobalt protoporphyrin IX (CoPP) or the carbon monoxide-releasing molecule tricarbonyldichlororuthenium (II) dimer (CORM-2) can enhance the antinociceptive effects produced by gabapentinoids in mice with neuropathic pain...
September 2018: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/30534626/delayed-onset-of-severe-chronic-pain-in-caspr2-autoantibody-associated-morvan-syndrome-in-a-former-uk-swine-abattoir-worker
#16
Andreas Goebel, Austen Peter Moore, Anu Jacob
Introduction: Autoantibody-mediated autoimmunity directed against targets within the voltage-gated potassium channel complex (VGKCC autoantibodies) has been implicated in causing neuropathic pain. Methods: We report the case of a 76-year-old, United Kingdom male who was diagnosed with contactin-associated protein 2 (CASPR2) autoantibody-associated Morvan syndrome, a rare neurological condition. Results: He had previously worked in a swine abattoir; exposure to aerosol within swine abattoirs has been reported to elicit an immune response resulting in the production of these autoantibodies; however, unusually, his manifestations emerged with several years' latency...
September 2018: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/30534541/risk-factors-of-neuropathic-pain-after-total-hip-arthroplasty
#17
Kazumasa Maeda, Motoki Sonohata, Masaru Kitajima, Shunsuke Kawano, Masaaki Mawatari
Purpose: Pain caused by osteoarthritis is primarily nociceptive pain; however, it is considered that a component of this pain is due to neuropathic pain (NP). We investigated the effects of total hip arthroplasty (THA) in patients with NP diagnosed by the PainDETECT questionnaire. Materials and Methods: One hundred sixty-three hips (161 patients) were evaluated. All patients were asked to complete the PainDETECT questionnaire based on their experience with NP, and clinical scores were evaluated using the Japanese Orthopaedic Association (JOA) Hip Score before and after THA...
December 2018: Hip & Pelvis
https://www.readbyqxmd.com/read/30534480/botulinum-toxin-a-a-novel-therapeutic-modality-for-upper-extremity-chronic-regional-pain-syndrome
#18
Lucie Lessard, Matthew J Bartow, James Lee, Julian Diaz-Abel, Oren E S Tessler
Background: Complex regional pain syndromes (CRPS) is a disease that is poorly understood. It is a chronic pain syndrome characterized by sympathetic disruptions as well as CNS sensitization. Botulinum Toxin-A has been shown to have efficacy in Raynaud's as well as other neuropathic pain disorders. Perhaps BTX-A warrants experimentation in the treatment of CRPS. Methods: Patients with CRPS refractory to 2 or more regional sympathetic nerve blocks in 2007 were included in the study...
October 2018: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/30533488/animal-protein-toxins-origins-and-therapeutic-applications
#19
Na Chen, Siqi Xu, Yuhan Zhang, Feng Wang
Venomous animals on the earth have been found to be valuable resources for the development of therapeutics. Enzymatic and non-enzymatic proteins and peptides are the major components of animal venoms, many of which can target various ion channels, receptors, and membrane transporters. Compared to traditional small molecule drugs, natural proteins and peptides exhibit higher specificity and potency to their targets. In this review, we summarize the varieties and characteristics of toxins from a few representative venomous animals, and describe the components and applications of animal toxins as potential drug candidates in the treatment of human diseases, including cancer, neurodegenerative diseases, cardiovascular diseases, neuropathic pain, as well as autoimmune diseases...
2018: Biophysics Reports
https://www.readbyqxmd.com/read/30532260/effects-of-caloric-restriction-on-neuropathic-pain-peripheral-nerve-degeneration-and-inflammation-in-normometabolic-and-autophagy-defective-prediabetic-ambra1-mice
#20
Roberto Coccurello, Francesca Nazio, Claudia Rossi, Federica De Angelis, Valentina Vacca, Giacomo Giacovazzo, Patrizia Procacci, Valerio Magnaghi, Domenico Ciavardelli, Sara Marinelli
There is a growing interest on the role of autophagy in diabetes pathophysiology, where development of neuropathy is one of the most frequent comorbidities. We have previously demonstrated that neuropathic pain after nerve damage is exacerbated in autophagy-defective heterozygous Ambra1 mice. Here, we show the existence of a prediabetic state in Ambra1 mice, characterized by hyperglycemia, intolerance to glucose and insulin resistance. Thus, we further investigate the hypothesis that prediabetes may account for the exacerbation of allodynia and chronic pain and that counteracting the autophagy deficit may relieve the neuropathic condition...
2018: PloS One
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