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https://www.readbyqxmd.com/read/29341331/the-relationship-between-thalamic-gaba-content-and-resting-cortical-rhythm-in-neuropathic-pain
#1
Flavia Di Pietro, Paul M Macey, Caroline D Rae, Zeynab Alshelh, Vaughan G Macefield, E Russell Vickers, Luke A Henderson
Recurrent thalamocortical connections are integral to the generation of brain rhythms and it is thought that the inhibitory action of the thalamic reticular nucleus is critical in setting these rhythms. Our work and others' has suggested that chronic pain that develops following nerve injury, that is, neuropathic pain, results from altered thalamocortical rhythm, although whether this dysrhythmia is associated with thalamic inhibitory function remains unknown. In this investigation, we used electroencephalography and magnetic resonance spectroscopy to investigate cortical power and thalamic GABAergic concentration in 20 patients with neuropathic pain and 20 pain-free controls...
January 17, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29339292/selective-hcn1-block-as-a-strategy-to-control-oxaliplatin-induced-neuropathy
#2
F Resta, L Micheli, A Laurino, V Spinelli, T Mello, L Sartiani, L Di Cesare Mannelli, E Cerbai, C Ghelardini, M N Romanelli, G Mannaioni, A Masi
Chemotherapy-Induced Peripheral Neuropathy (CIPN) is the most frequent adverse effect of pharmacological cancer treatments. The occurrence of neuropathy prevents the administration of fully-effective drug regimen, affects negatively the quality of life of patients, and may lead to therapy discontinuation. CIPN is currently treated with anticonvulsants, antidepressants, opioids and non-opioid analgesics, all of which are flawed by insufficient anti-hyperalgesic efficacy or addictive potential. Understandably, developing new drugs targeting CIPN-specific pathogenic mechanisms would dramatically improve efficacy and tolerability of anti-neuropathic therapies...
January 12, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29339053/upregulation-of-nlrp3-via-stat3-dependent-histone-acetylation-contributes-to-painful-neuropathy-induced-by-bortezomib
#3
Cui-Cui Liu, Zhu-Xi Huang, Xiao Li, Kai-Feng Shen, Meng Liu, Han-Dong Ouyang, Su-Bo Zhang, Yu-Ting Ruan, Xiao-Long Zhang, Shao-Ling Wu, Wen-Jun Xin, Chao Ma
Painful neuropathy, as a severe side effect of chemotherapeutic bortezomib, is the most common reason for treatment discontinuation. However, the mechanism by which administration of bortezomib leads to painful neuropathy remains unclear. In the present study, we found that application of bortezomib significantly increased the expression of NOD-like receptor family pyrin domain containing 3 (NLRP3) and phosphorylated signal transducer and activator of transcription-3 (STAT3) in dorsal root ganglion (DRG). Intrathecal injection of NLRP3 siRNA significantly prevented the mechanical allodynia induced by bortezomib treatment, and intrathecal injection of recombinant adeno-associated virus vector encoding NLRP3 markedly decreased paw withdrawal threshold of naive rats...
January 12, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29338144/mortality-and-long-term-quality-of-life-after-percutaneous-tracheotomy-in-intensive-care-unit-a-prospective-observational-study
#4
Maria Vargas, Yuda Sutherasan, Iole Brunetti, Camilla Micalizzi, Angelo Insorsi, Lorenzo Ball, Marta Folentino, Rosanna Sileo, Arduino DE Lucia, Manuela Cerana, Alessandro Accattatis, Domenico DE Lisi, Angelo Gratarola, Francesco Mora, Giorgio Peretti, Giuseppe Servillo, Paolo Pelosi
BACKGROUND: Quality of life and mortality after percutaneous dilatational tracheotomy (PDT) has been poorly investigated. The aims of this study were to evaluate the independent risk factors for Intensive Care Unit (ICU) mortality and investigate quality of life over the first year after PDT in critically ill patients. METHODS: This was a prospective, single-center, cohort study performed in a tertiary care University Hospital, enrolling consecutive ICU patients requiring elective PDT, collecting data during the tracheotomy procedure and the ICU stay...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29338087/thrombospondin-4-acts-on-pre-synaptic-calcium-channel-alpha-2-delta-1-subunit-to-induce-synaptogenesis-between-sensory-and-spinal-cord-neurons-through-a-t-type-calcium-channel-dependent-pathway-that-is-blocked-by-early-low-dose-gabapentin-treatments
#5
Yanhui Peter Yu, Nian Gong, Tae Dong Kweon, Benjamin Vo, Z David Luo
BACKGROUND AND PURPOSE: Nerve injury induces concurrent upregulation of calcium channel alpha-2-delta-1 subunit (Cav α2 δ1 ) and extracellular matrix protein thrombospondin-4 (TSP4) in dorsal root ganglia and dorsal spinal cord, leading to neuropathic pain state development. Interactions of these proteins promote aberrant excitatory synaptogenesis that contributes to neuropathic pain state development through unknown mechanisms. We investigated the contributory role of Cav α2 δ1 /TSP4 to synaptogenesis, and pathway involved in vitro, and whether gabapentin could block this process and pain development in vivo...
January 16, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29337727/ultrasound-in-anesthesia-critical-care-and-pain-management-a-critic-s-review
#6
Kimberly Pollock, Joshua Zimmerman
No abstract text is available yet for this article.
January 15, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29336515/expectations-and-experiences-of-patients-with-osteoarthritis-undergoing-total-joint-arthroplasty-an-integrative-review
#7
Min Ting Alicia See, Yanika Kowitlawakul, Apphia Jia Qi Tan, Sok Ying Liaw
BACKGROUND: The effectiveness of educational interventions for osteoarthritic patients undergoing total joint arthroplasty remains inconclusive. It is essential to understand the educational needs of these patients from their perspectives. AIM: The aim of this study was to systematically summarize and synthesize osteoarthritic patients' expectations and experiences in undergoing total joint arthroplasty to identify their educational needs. DESIGN: An integrative review was conducted...
January 16, 2018: International Journal of Nursing Practice
https://www.readbyqxmd.com/read/29336303/keratinocytes-mediate-innocuous-and-noxious-touch-via-atp-p2x4-signaling
#8
Francie Moehring, Ashley M Cowie, Anthony D Menzel, Andy D Weyer, Michael Grzybowski, Thiago Arzua, Aron M Geurts, Oleg Palygin, Cheryl L Stucky
The first point of our body's contact with tactile stimuli (innocuous and noxious) is the epidermis, the outermost layer of skin that is largely composed of keratinocytes. Here, we sought to define the role that keratinocytes play in touch sensation in vivo and ex vivo. We show that optogenetic inhibition of keratinocytes decreases behavioral and cellular mechanosensitivity. These processes are inherently mediated by ATP signaling, as demonstrated by complementary cutaneous ATP release and degradation experiments...
January 16, 2018: ELife
https://www.readbyqxmd.com/read/29335793/accuracy-of-emergency-department-triage-using-the-emergency-severity-index-and-independent-predictors-of-under-triage-and-over-triage-in-brazil-a-retrospective-cohort-analysis
#9
Jeremiah S Hinson, Diego A Martinez, Paulo S K Schmitz, Matthew Toerper, Danieli Radu, James Scheulen, Sarah A Stewart de Ramirez, Scott Levin
BACKGROUND: Emergency department (ED) triage is performed to prioritize care for patients with critical and time-sensitive illness. Triage errors create opportunity for increased morbidity and mortality. Here, we sought to measure the frequency of under- and over-triage of patients by nurses using the Emergency Severity Index (ESI) in Brazil and to identify factors independently associated with each. METHODS: This was a single-center retrospective cohort study. The accuracy of initial ESI score assignment was determined by comparison with a score entered at the close of each ED encounter by treating physicians with full knowledge of actual resource utilization, disposition, and acute outcomes...
January 15, 2018: International Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29335353/kchip3-n-terminal-31-50-fragment-mediates-its-association-with-trpv1-and-alleviates-inflammatory-hyperalgesia-in-rats
#10
Na-Xi Tian 田纳西, Yu Xu 徐煜, Jin-Yu Yang 杨瑾裕, Lu Li 李璐, Xiao-Hong Sun 孙晓红, Yun Wang 王韵, Ying Zhang 张瑛
Potassium channel interacting protein 3 (KChIP3), also termed downstream regulatory element antagonist modulator (DREAM) and calsenilin, is a multi-functional protein belonging to the neuronal calcium sensor (NCS) family. Recent studies revealed the expression of KChIP3 in dorsal root ganglion (DRG) neurons, suggesting the potential role of KChIP3 in peripheral sensory processing. Herein, we show that KChIP3 co-localizes with TRPV1, a critical molecule involved in peripheral sensitization during inflammatory pain...
January 15, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29335352/discrete-modules-and-mesoscale-functional-circuits-for-thermal-nociception-within-primate-s1-cortex
#11
Pai-Feng Yang, Ruiqi Wu, Tung-Lin Wu, Zhaoyue Shi, Li Min Chen
This study addresses one long-standing question of whether functional separations are preserved for somatosensory modalities of touch, heat and cold nociception within primate primary somatosensory (S1) cortex. This information is critical for understanding how the nature of pain is represented in the primate brain. Using a combination of submillimeter-resolution fMRI and microelectrode local field potential (LFP) and spike recordings, we identified spatially-segregated cortical zones for processing touch, nociceptive heat and cold stimuli in somatotopically appropriate areas 3a, 3b, 1, and 2 of S1 in male monkeys...
January 15, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29335280/mapping-protein-interactions-of-sodium-channel-nav1-7-using-epitope-tagged-gene-targeted-mice
#12
Alexandros H Kanellopoulos, Jennifer Koenig, Honglei Huang, Martina Pyrski, Queensta Millet, Stéphane Lolignier, Toru Morohashi, Samuel J Gossage, Maude Jay, John E Linley, Georgios Baskozos, Benedikt M Kessler, James J Cox, Annette C Dolphin, Frank Zufall, John N Wood, Jing Zhao
The voltage-gated sodium channel NaV1.7 plays a critical role in pain pathways. We generated an epitope-tagged NaV1.7 mouse that showed normal pain behaviours to identify channel-interacting proteins. Analysis of NaV1.7 complexes affinity-purified under native conditions by mass spectrometry revealed 267 proteins associated with Nav1.7 in vivo The sodium channel β3 (Scn3b), rather than the β1 subunit, complexes with Nav1.7, and we demonstrate an interaction between collapsing-response mediator protein (Crmp2) and Nav1...
January 15, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29333061/critical-appraisal-of-rome-iv-criteria-hypersensitive-esophagus-does-belong-to-gastroesophageal-reflux-disease-spectrum
#13
REVIEW
Leonardo Frazzoni, Marzio Frazzoni, Nicola de Bortoli, Salvatore Tolone, Irene Martinucci, Lorenzo Fuccio, Vincenzo Savarino, Edoardo Savarino
The Rome IV Committee introduced a major change in the classification of functional gastrointestinal disorders, proposing a more restrictive definition of gastroesophageal reflux disease (GERD). It was suggested that hypersensitive esophagus (HE) may sit more firmly within the functional realm. It was suggested that GERD diagnosis should be based upon abnormal acid exposure time (AET) only, implying no advantage of impedance-pH over pH monitoring. Symptom association probability (SAP), symptom index (SI) and heartburn relief with proton pump inhibitor (PPI) therapy were regarded as unreliable, whereas a lack of response to PPI was considered as evidence of functional heartburn...
January 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29332745/a-critical-overview-of-the-current-myofascial-pain-literature-january-2018
#14
REVIEW
Jan Dommerholt, Todd Hooks, Li-Wei Chou, Michelle Finnegan
The majority of papers included in the quarterly review discuss various aspects of dry needling (DN), which continues to be of interest to researchers and clinicians. A study by Liu et al. is the first paper to examine the effects of DN of acetylcholine, esterase and receptors. The study provides support for the integrated trigger point hypothesis and for DN. A paper by Hightower and colleagues found an intriguing link between low magnesium levels in the drink water supply, vitamin D, and myofascial pain, cancer, tendon ruptures, and colon polyps...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332237/acute-acetaminophen-ingestion-improves-performance-and-muscle-activation-during-maximal-intermittent-knee-extensor-exercise
#15
Paul T Morgan, Joanna L Bowtell, Anni Vanhatalo, Andrew M Jones, Stephen J Bailey
AIM: Acetaminophen is a commonly used medicine for pain relief and emerging evidence suggests that it may improve endurance exercise performance. This study investigated some of the physiological mechanisms by which acute acetaminophen ingestion might blunt muscle fatigue development. METHODS: Thirteen active males completed 60 × 3 s maximum voluntary contractions (MVC) of the knee extensors with each contraction separated by a 2 s passive recovery period...
January 13, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29331040/jun-gal-cd74-and-c1qb-as-potential-indicator-for-neuropathic-pain
#16
Ji-An Yang, Jun-Min He, Jing-Min Lu, Li-Juan Ji
Neuropathic pain is a kind of pain caused by primary or secondary impairment or dysfunction of peripheral or central nervous system. Patients with neuropathic pain were often with poor clinical outcome. We screened the differentially expressed genes between sciatic nerve injury and dorsal root ganglion gene in the sham operation model. Microarray and the spared nerve injury module were used to explore the molecular mechanism of neuropathic pain by injuries and the differentially expressed genes (DEGs) were identified out...
January 13, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29330232/interventions-must-be-realistic-to-be-useful-and-completed-in-family-medicine
#17
EDITORIAL
Marjorie A Bowman, Dean A Seehusen, Anne Victoria Neale
Being realistic while helping our patients is this issue's theme. Given the volume of tasks required in family medicine, recommendations for improvements in direct care or care measurement cannot just be evidence-based but must also be realistic. On the list of realistic: ordering antipsychotics for symptoms of dementia in the elderly, despite recommendations to not do so; ordering antidepressants without fear that the patient could develop hypertension; mental health care providers in primary care offices; forced choice for opioid management; plus agenda setting for visit efficiency...
January 2018: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/29329164/a-systematic-review-of-risk-factors-associated-with-cognitive-impairment-after-pediatric-critical-illness
#18
Alicia G Kachmar, Sharon Y Irving, Cynthia A Connolly, Martha A Q Curley
OBJECTIVES: To identify risk factors associated with cognitive impairment as assessed by neuropsychologic tests in neurotypical children after critical illness. DATA SOURCES: For this systematic review, we searched the Cochrane Library, Scopus, PubMed, Ovid, Embase, and CINAHL databases from January 1960 to March 2017. STUDY SELECTION: Included were studies with subjects 3-18 years old at the time of post PICU follow-up evaluation and use of an objective standardized neuropsychologic test with at least one cognitive functioning dimension...
January 11, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29327205/nociceptive-roles-of-trpm2-ion-channel-in-pathologic-pain
#19
REVIEW
Yongwoo Jang, Pyung Sun Cho, Young Duk Yang, Sun Wook Hwang
Pain is a protective mechanism that enables us to avoid potentially harmful environments. However, when pathologically persisted and aggravated under severely injured or inflamed conditions, pain often reduces the quality of life and thus is considered as a disease to eliminate. Inflammatory and/or neuropathic mechanisms may exaggerate interactions between damaged tissues and neural pathways for pain mediation. Similar mechanisms also promote the communication among cellular participants in synapses at spinal or higher levels, which may amplify nociceptive firing and subsequent signal transmission, deteriorating the pain sensation...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29326151/sex-based-assessment-of-patient-presentation-lesion-characteristics-and-treatment-modalities-in-patients-undergoing-peripheral-vascular-intervention
#20
Niveditta Ramkumar, Bjoern D Suckow, Jeremiah R Brown, Art Sedrakyan, Jack L Cronenwett, Philip P Goodney
BACKGROUND: Limited evidence suggests that women and men might be treated differently for peripheral arterial disease. This analysis evaluated sex-based differences in disease presentation and its effect on treatment modality among patients who underwent endovascular treatment for peripheral arterial disease. METHODS AND RESULTS: Using national registry data from the Vascular Quality Initiative between 2010 and 2013, we examined patient, limb, and artery characteristics by sex through descriptive statistics...
January 2018: Circulation. Cardiovascular Interventions
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