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https://read.qxmd.com/read/30901567/expanding-the-clinical-description-of-autosomal-recessive-spastic-ataxia-of-charlevoix-saguenay
#1
Marie-Michèle Briand, Xavier Rodrigue, Isabelle Lessard, Jean Mathieu, Bernard Brais, Isabelle Côté, Cynthia Gagnon
BACKGROUND AND PURPOSE: Autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) diagnosis is based on the presence of three main clinical features: 1) ataxia, 2) pyramidal involvement, and 3) axonal neuropathy. This study aimed to explore, among a cohort of adults with ARSACS, the prevalence of other signs and symptoms than those commonly describe in this disease and compare their prevalence between younger (<40 years) and older (≥40 years) participants. METHODS: A clinical interview based on a standardized questionnaire was conducted...
March 12, 2019: Journal of the Neurological Sciences
https://read.qxmd.com/read/30901319/psychological-factors-can-cause-false-pain-classification-on-paindetect
#2
Brigitte Tampin, Jane Royle, Chrianna Bharat, Michelle Trevenen, Lisa Olsen, Roger Goucke
Background and aims The painDETECT questionnaire (PD-Q) has been widely used as a screening tool for the identification of neuropathic pain (NeP) as well as a tool for the characterization of patients' pain profile. In contrast to other NeP screening tools, the PD-Q is the only screening tool with weighted sensory descriptors. It is possible that responses to the PD-Q sensory descriptors are influenced by psychological factors, such as catastrophizing or anxiety, which potentially might contribute to an overall higher score of PD-Q and a false positive identification of NeP...
March 22, 2019: Scandinavian Journal of Pain
https://read.qxmd.com/read/30901318/field-testing-of-the-revised-neuropathic-pain-grading-system-in-a-cohort-of-patients-with-neck-and-upper-limb-pain
#3
Brigitte Tampin, Rachel Elizabeth Broe, Lee Lee Seow, Shushana Gijohn George, Jiajie Tan, Rajiv Menon, Angela Jacques, Helen Slater
Background and aims In 2008, the International Association for the Study of Pain Special Interest Group on Neuropathic Pain (NeuPSIG) proposed a clinical grading system to help identify patients with neuropathic pain (NeP). We previously applied this classification system, along with two NeP screening tools, the painDETECT (PD-Q) and Leeds Assessment of Neuropathic Symptoms and Signs pain scale (LANSS), to identify NeP in patients with neck/upper limb pain. Both screening tools failed to identify a large proportion of patients with clinically classified NeP, however a limitation of our study was the use of a single clinician performing the NeP classification...
March 22, 2019: Scandinavian Journal of Pain
https://read.qxmd.com/read/30900821/searching-for-analgesic-drug-candidates-alleviating-oxaliplatin-induced-cold-hypersensitivity-in-mice
#4
Kinga Sałat, Anna Furgała, Natalia Malikowska-Racia
Oxaliplatin is a third-generation, platinum-based derivative used to treat advanced colorectal cancer. Within the patient population on oxaliplatin therapy, a lower incidence of hematological adverse effects and gastrointestinal toxicity is noted, but severe neuropathic pain episodes characterized by increased cold and tactile hypersensitivity are present in ~95% of patients. This drug is also used to induce a rodent model of chemotherapy-induced peripheral neuropathy (CIPN)-related neuropathic pain which is widely used in the search for novel therapies for CIPN prevention and treatment...
March 22, 2019: Chemical Biology & Drug Design
https://read.qxmd.com/read/30900520/neuropathic-pain-screening-construct-validity-in-patients-with-sickle-cell-disease
#5
Keesha Powell-Roach, Yingwei Yao, Miriam O Ezenwa, Judith M Schlaeger, Marie L Suarez, Robert E Molokie, Zaijie Jim Wang, Diana L Wilkie
Individuals with pain from sickle cell disease (SCD) are often treated for nociceptive pain, but recent findings indicate they may also have neuropathic pain. PAIN ReportIt, a computerized version of the McGill Pain Questionnaire, provides a potential subscale that is the summed number of selected neuropathic pain quality words (PR-NNP), but it lacks construct validity. The study purpose was to ascertain PR-NNP construct validity in adults with SCD and chronic pain. In an outpatient setting, 186 participants completed the PAIN ReportIt, Neuropathic Pain Symptom Inventory (NPSI), and Leeds Assessment for Neuropathic Symptoms and Signs (S-LANSS)...
March 22, 2019: Western Journal of Nursing Research
https://read.qxmd.com/read/30900515/-express-astrocyte-d-serine-modulates-the-activation-of-neuronal-nos-leading-to-the-development-of-mechanical-allodynia-in-peripheral-neuropathy
#6
Sheu-Ran Choi, Dae-Hyun Roh, Seo-Yeon Yoon, Hoon-Seong Choi, Suk-Yun Kang, Ho-Jae Han, Alvin J Beitz, Jang-Hern Lee
Spinal D-serine plays an important role in nociception via an increase in phosphorylation of the NMDA receptor GluN1 subunit (pGluN1). However, the cellular mechanisms underlying this process have not been elucidated. Here we investigate the possible role of neuronal nitric oxide synthase (nNOS) in the D-serine-induced potentiation of NMDA receptor function and the induction of neuropathic pain in a chronic constriction injury (CCI) model. Intrathecal administration of the serine racemase inhibitor, LSOS or the D-serine degrading enzyme, DAAO on post-operative days 0-3 significantly reduced the CCI-induced increase in NO levels and NADPH-diaphorase staining in lumbar dorsal horn neurons, as well as the CCI-induced decrease in phosphorylation (Ser847) of nNOS (pnNOS) on day 3 post-CCI surgery...
March 22, 2019: Molecular Pain
https://read.qxmd.com/read/30900486/the-neuropathic-pain-an-overview-of-the-current-treatment-and-future-therapeutic-approaches
#7
Eugenio Cavalli, Santa Mammana, Ferdinando Nicoletti, Placido Bramanti, Emanuela Mazzon
Neuropathic pain is characterized by abnormal hypersensitivity to stimuli (hyperalgesia) and nociceptive responses to non-noxious stimuli (allodynia). The conditions and the pathophysiological states that determine the onset of neuropathic pain are heterogeneous, such as metabolic disorders, neuropathy caused by viral infections, and autoimmune diseases affecting the central nervous system (CNS). Neuropathic pain in the general population is estimated to have a prevalence ranging between 3% and 17%. Most of the available treatments for neuropathic pain have moderate efficacy and present side effects that limit their use; therefore, other therapeutic approaches are needed for patients...
January 2019: International Journal of Immunopathology and Pharmacology
https://read.qxmd.com/read/30898855/core-outcome-measures-in-preclinical-assessment-of-candidate-analgesics
#8
REVIEW
S Stevens Negus
All preclinical procedures for analgesic drug discovery involve two components: 1) a "pain stimulus" (the principal independent variable), which is delivered to an experimental subject with the intention of producing a pain state; and 2) a "pain behavior" (the principal dependent variable), which is measured as evidence of that pain state. Candidate analgesics are then evaluated for their effectiveness to reduce the pain behavior, and results are used to prioritize drugs for advancement to clinical testing...
April 2019: Pharmacological Reviews
https://read.qxmd.com/read/30898676/activation-of-alpha7-acetylcholine-receptors-reduces-neuropathic-pain-by-decreasing-dynorphin-a-release-from-microglia
#9
Liu Ji, Yongmei Chen, Huixia Wei, Hui Feng, Ruijie Cang, Di Yu, Xianyu Wang, Xingrui Gong, Mazhong Zhang
Dynorphin A is increased in neuropathic pain models. Activation of α7 n acetylcholine receptor (nAchR) reduces inflammation and pain. Whether activation of α7 nAchR affects dynorphin A release is unknown. The experiments evaluated the proinflammatory effect of dynorphin A in the spinal nerve ligation-induced neuropathic pain models and the effect of α7 nAchR activation on the dynorphin A content. α7 nAchR agonist, PHA-543613 and its antagonist, methyllycaconitine citrate were used and dynorphin A content was measured after spinal nerve ligation and in microglia cultures to test the analgesic mechanisms of α7 nAchR activation...
March 18, 2019: Brain Research
https://read.qxmd.com/read/30898277/evolving-techniques-and-indications-in-peripheral-nerve-stimulation-for-pain
#10
REVIEW
Garrett P Banks, Christopher J Winfree
Peripheral nerve stimulation is the direct electrical stimulation of named nerves outside the central neuraxis to alleviate pain in the distribution of the targeted peripheral nerve. These treatments have shown efficacy in treating a variety of neuropathic, musculoskeletal, and visceral refractory pain pathologies; although not first line, these therapies are an important part of the treatment repertoire for chronic pain. With careful patient selection and judicious choice of stimulation technique, excellent results can be achieved for a variety of pain etiologies and distributions...
April 2019: Neurosurgery Clinics of North America
https://read.qxmd.com/read/30898276/nerve-stimulation-for-pain
#11
REVIEW
Mark Corriveau, Wendell Lake, Amgad Hanna
Nerve stimulation is a reversible technique that is used successfully for the treatment of traumatic neuropathic pain, complex regional pain syndrome, and craniofacial neuropathic pain. Nerve field stimulation targets painful regions rather than a single nerve and has expanded indications, including axial low back pain. Appropriate patient education and motivation are crucial prior to surgery. Ongoing research is necessary to provide high-level evidence for the use of nerve stimulation. Most electrodes are primarily designed for spinal cord stimulation, hence the need to develop nerve electrodes dedicated for nerve stimulation...
April 2019: Neurosurgery Clinics of North America
https://read.qxmd.com/read/30898121/visualizing-neuroinflammation-with-fluorescence-and-luminescent-lanthanide-based-in-situ-hybridization
#12
Lindsay M Parker, Nima Sayyadi, Vasiliki Staikopoulos, Ashish Shrestha, Mark R Hutchinson, Nicolle H Packer
BACKGROUND: Neurokine signaling via the release of neurally active cytokines arises from glial reactivity and is mechanistically implicated in central nervous system (CNS) pathologies such as chronic pain, trauma, neurodegenerative diseases, and complex psychiatric illnesses. Despite significant advancements in the methodologies used to conjugate, incorporate, and visualize fluorescent molecules, imaging of rare yet high potency events within the CNS is restricted by the low signal to noise ratio experienced within the CNS...
March 21, 2019: Journal of Neuroinflammation
https://read.qxmd.com/read/30896810/neuroinflammation-and-adult-hippocampal-neurogenesis-in-neuropathic-pain-and-alkyl-glycerol-ethers-treatment-in-aged-mice
#13
Anna Tyrtyshnaia, Igor Manzhulo, Yulia Kipryushina, Ekaterina Ermolenko
Neuropathic pain is a condition characterized by unpleasant sensory and emotional experiences associated with a number of diseases or injuries affecting the sensory system through various mechanisms. In this study, we focused on the impact of chronic neuropathic pain on the microglial state and hippocampal neurogenesis in aged mice. In addition, we examined the effects of alkyl glycerol ethers (AGE) treatment on behavioral parameters, hippocampal neuronal and microglial plasticity in aged C57BL/6 mice with neuropathic pain...
March 21, 2019: International Journal of Molecular Medicine
https://read.qxmd.com/read/30895730/hla-associated-antiepileptic-drug-induced-cutaneous-adverse-reactions
#14
REVIEW
Kerry A Mullan, Alison Anderson, Patricia T Illing, Patrick Kwan, Anthony W Purcell, Nicole A Mifsud
Adverse drug reactions (ADRs) are a common cause of hospital admissions (up to 19%), with the majority of cases due to off-target predictable drug effects (type A reactions). However, idiosyncratic drug-induced immune activated (type B) reactions contribute to a range of hypersensitivity reactions, with T-cell mediated type IV hypersensitivity reactions mainly manifesting as cutaneous ADRs (cADRs). Aromatic antiepileptic drugs (AEDs), used in the treatment of epilepsy as well as bipolar disorder or neuropathic pain, have been implicated as culprit drugs in a spectrum of pathologies ranging from mild maculopapular exanthema (MPE) to severe and life-threatening conditions including drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN)...
March 20, 2019: HLA
https://read.qxmd.com/read/30893433/the-effects-of-early-neuropathic-pain-control-with-gabapentin-on-long-term-chronic-pain-and-itch-in-burn-patients
#15
Cameron J Kneib, Stephen H Sibbett, Gretchen J Carrougher, Lara A Muffley, Nicole S Gibran, Samuel P Mandell
Gabapentin has analgesic efficacy for neuropathic pain and is increasingly used in burn care. This study investigated the effect of a neuropathic pain control protocol, as well as early gabapentin initiation (< 72 hours from injury) on total inpatient opioid use, chronic pain, and itch. This is a single-institution retrospective cohort study of patients over age 14 admitted between 2006 and 2016 with burns. We compared patients who did not receive gabapentin with those who had early gabapentin initiation vs...
March 20, 2019: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://read.qxmd.com/read/30892737/an-updated-review-on-pathophysiology-and-management-of-burning-mouth-syndrome-with-endocrinological-psychological-and-neuropathic-perspectives
#16
REVIEW
Yoshiki Imamura, Takahiro Shinozaki, Akiko Okada-Ogawa, Noboru Noma, Masahiro Shinoda, Koichi Iwata, Akihiko Wada, Osamu Abe, Kelun Wang, Peter Svensson
Burning mouth syndrome (BMS) is a chronic orofacial pain disorder of unknown cause. It is more common in peri- and postmenopausal women, and sex hormone dysregulation is believed to be an important causative factor. Psychosocial events often trigger or exacerbate symptoms, and persons with BMS appear to be predisposed toward anxiety and depression. Atrophy of small nerve fibers in the tongue epithelium has been reported, and potential neuropathic mechanisms for BMS are now widely investigated. Historically, BMS was thought to comprise endocrinological, psychosocial, and neuropathic components...
March 20, 2019: Journal of Oral Rehabilitation
https://read.qxmd.com/read/30892183/pain-on-the-plantar-surface-of-the-foot
#17
Natalia Gutteck, Sebastian Schilde, Karl-Stefan Delank
BACKGROUND: Plantar fasciitis (PF) is characterized by pain on weight-bearing in the medial plantar area of the heel, metatarsalgia (MTG) by pain on the plantar surface of the forefoot radiating into the toes. Reliable figures on lifetime prevalence in Germany are lacking. METHODS: This review is based on pertinent publications retrieved from a selective search in PubMed, on guidelines from Germany and abroad, and on the authors' clinical experience. RESULTS: Plantar fasciitis is generally diagnosed from the history and physical examination, without any ancillary studies...
February 8, 2019: Deutsches Ärzteblatt International
https://read.qxmd.com/read/30889241/the-prevalence-impact-and-risk-factors-for-persistent-pain-after-breast-cancer-surgery-in-a-new-zealand-population
#18
Daniel L C Chiang, David A Rice, Nuala A Helsby, Andrew A Somogyi, Michal T Kluger
OBJECTIVE: Few Australasian studies have assessed persistent pain after breast cancer surgery. This study aims to evaluate the prevalence, impact, and risk factors of moderate to severe persistent pain after breast cancer surgery in a New Zealand population. METHODS: Retrospective cross-sectional study of patients who underwent breast cancer surgery between six and 48 months previously. Validated questionnaires were used to assess pain prevalence and impact, psychological distress, and upper limb function...
March 19, 2019: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://read.qxmd.com/read/30889155/topical-fisionerv%C3%A2-is-effective-in-treatment-of-peripheral-neuropathic-pain
#19
Angelo Tarullo, Antonella Tarullo, Emanuela Lacatena, Luigi Santacroce, Angelo Michele Inchingolo, Giuseppina Malcangi, Salvatore Scacco, Margherita Fanelli, Raffaele Cagiano, Francesco Inchingolo, Monica Caprio, Gianna Dipalma, Andrea Ballini, Antonietta Clemente, Alessio Danilo Inchingolo, Francesco Girolamo, Maria Tattoli
BACKGROUND: Management of neuropathic pain (Neu P) is complex and difficult. Although there are several therapeutic options, treatment with Neu P is often inadequate, which led to undertreated patients. Thus, it would be desirable, for Neu P treatment, further multimechanistics approaches. OBJECTIVE: The aim of the present study was to evaluate, in Neu P management, the effectiveness of "FISIONERV, a gel for topical use. SETTING: This study was conducted in the "Rehabilitation Unit of N...
January 24, 2019: Acta Bio-medica: Atenei Parmensis
https://read.qxmd.com/read/30888982/a-randomized-controlled-trial-to-assess-the-effectiveness-of-muscle-strengthening-and-balancing-exercises-on-chemotherapy-induced-peripheral-neuropathic-pain-and-quality-of-life-among-cancer-patients
#20
Shelly Dhawan, Rachel Andrews, Lalit Kumar, Sanjay Wadhwa, Garima Shukla
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is the presence of tingling, burning, itching, and unpleasant sensations in hands and feet due to nerve damage by chemotherapy. Exercise rehabilitation has potential to prevent or alleviate CIPN. OBJECTIVE: The aim of this study was to assess the effectiveness of muscle strengthening and balancing exercises on CIPN pain and quality of life (QOL) among cancer patients. METHODS: The randomized controlled trial included 45 cancer patients from a tertiary care hospital in India receiving chemotherapeutic drugs paclitaxel and carboplatin and found to have CIPN...
March 18, 2019: Cancer Nursing
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