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H Viisanen, H Chapman, H Wei, M Lasierra Losada, A Koivisto, K E Akerman, A Pertovaara
Methylglyoxal (MG) is a reactive carbonyl compound generated in diabetes mellitus. MG is an established transient receptor potential ankyrin 1 (TRPA1) channel agonist that contributes to TRPA1-mediated diabetic pain hypersensitivity. Here we studied whether exposure to diabetes and thereby to elevated endogenous MG modulates hypersensitivity induced by intradermal MG. Moreover, since diabetes induces endoplasmic reticulum (ER) stress, we compared the role of TRPA1 in diabetes and ER stress by assessing whether tunicamycin-induced ER stress, without diabetes, produces TRPA1-mediated pain hypersensitivity and by assessing whether ER stress and diabetes have similar modulatory effects on MG-induced hypersensitivity...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Tian Tian, Linying Guo, Jing Xu, Shun Zhang, Jingjing Shi, Chengxia Liu, Yuanyuan Qin, Wenzhen Zhu
Peripheral nerve damage does not fully explain the pathogenesis of trigeminal neuralgia (TN). Central nervous system changes can follow trigeminal nerve dysfunction. We hypothesized that brain white matter and functional connectivity changes in TN patients were involved in pain perception, modulation, the cognitive-affective system, and motor function; moreover, changes in functional reorganization were correlated with white matter alterations. Twenty left TN patients and twenty-two healthy controls were studied...
October 25, 2016: Scientific Reports
Guillaume Foldes-Busque, Stéphanie Hamel, Geneviève Belleville, Richard Fleet, Julien Poitras, Jean-Marc Chauny, Alain Vadeboncoeur, Kim L Lavoie, André Marchand
BACKGROUND: Panic disorder (PD) is highly prevalent in patients with non-cardiac chest pain (NCCP). This study aims to explore the role of psychological factors (PD intensity, anxiety sensitivity, heart-related fear, attention and avoidance) common to NCCP and PD in predicting chest pain levels in patients with both conditions. METHODS: This association was investigated in emergency department patients with NCCP and PD receiving either evidence-based treatment of PD or treatment as usual...
2016: BioPsychoSocial Medicine
P Noufi, E Khoury, E Ayoub, N Naccache, S Richa
OBJECTIVES: Use of chronic opioid therapy has increased substantially over the past few years, even though opioid therapy is associated with potentially serious harms, including opioid-related adverse effects and outcomes. Prescription of opioids for chronic pain, particularly nonmalignant chronic pain, remains controversial. In the midst of this controversy, patterns of actual prescription and influences on these patterns are not well understood. This study aims to describe the frequency of prescription of opioid analgesics in a university hospital, the attitudes of doctors towards this category of drugs, and the follow-up modalities of patients taking these drugs...
October 21, 2016: L'Encéphale
César González-Ramírez, Jesús Montanero-Fernández, Diego Peral-Pacheco
BACKGROUND: The extreme variability of Temporary disability duration causes a deep impact in Public Health. We try to understand what factors does duration of disability depend on. METHODS: Through cohort study with data of temporal disabilities collected by Ibermutuamur from 2008 to 2012, we use statistical multivariate methods. RESULTS: The most reliable and convenient algorithm to predict duration was a categorical classification tree that distinguished between brief and long disabilities, taking into account both medical-biological and socioeconomic factors...
October 24, 2016: Archives of Environmental & Occupational Health
Monique L Smith, Caroline M Hostetler, Mary M Heinricher, Andrey E Ryabinin
A complex relationship exists between the psychosocial environment and the perception and experience of pain, and the mechanisms of the social communication of pain have yet to be elucidated. The present study examined the social communication of pain and demonstrates that "bystander" mice housed and tested in the same room as mice subjected to inflammatory pain or withdrawal from morphine or alcohol develop corresponding hyperalgesia. Olfactory cues mediate the transfer of hyperalgesia to the bystander mice, which can be measured using mechanical, thermal, and chemical tests...
October 2016: Science Advances
Aditi Vian Varma, Lori McBride, Michael Marble, Ann Tilton
Congenital insensitivity to pain and anhidrosis (CIPA) is one of the hereditary autonomic and sensory neuropathies. Typically presenting in infancy, it manifests as hyperpyrexia from defects in sweating (autonomic) and self-mutilating injuries from pain insensitivity (sensory). CIPA being rare in North America, diagnosis is often missed due to variable presentation. Subsequent management of its complications is therefore delayed. We report an unusual presentation in a 2-year-old girl with preexisting diagnosis of CIPA who was evaluated for bilateral upper extremity paresis of insidious onset...
November 15, 2016: Journal of the Neurological Sciences
Mírian Feliciano Costa, Tais Iara Jesus, Bruno Rafael Pereira Lopes, Célio Fernando Figueiredo Angolini, Abner Montagnolli, Lorraine de Paula Gomes, Gabriela Sterle Pereira, Ana Lucia Tasca Gois Ruiz, João Ernesto Carvalho, Marcos Nogueira Eberlin, Catarina Dos Santos, Karina Alves Toledo
BACKGROUND: Eugenia spp. are used in popular medicine in the treatment of pain, diabetes, intestinal disorders and cough. The aim of the work is to evaluate, ex vivo and in vivo, the anti-inflammatory activity of the hydroethanolic extracts of the leaves of Eugenia aurata (EA) and Eugenia punicifolia HBK (EP) upon neutrophils. METHODS: Ex vivo, isolated human neutrophils were sensitized by Eugenia extracts (0.1-1000 μg/mL) and stimulated by PMA. In these conditions, different neutrophil activities related to inflammatory process were measured: adhesion, degranulation and NET release...
October 22, 2016: BMC Complementary and Alternative Medicine
Luís Filipe Azevedo, Rute Sampaio, Cláudia Camila Dias, José Romão, Laurinda Lemos, Luís Agualusa, Sílvia Vaz-Serra, Teresa Patto, Altamiro Costa-Pereira, José Manuel Castro-Lopes
BACKGROUND: We aimed to perform the translation, cultural adaptation, and validation of the Pain Beliefs and Perceptions Inventory (PBPI) for the European Portuguese language and chronic pain population. METHODS: This is a longitudinal multicenter validation study. A Portuguese version of the PBPI (PBPI-P) was created through a process of translation, back-translation, and expert panel evaluation. The PBPI-P was administered to a total of 122 patients from 13 chronic pain clinics in Portugal, at baseline and after 7 days...
October 22, 2016: Pain Practice: the Official Journal of World Institute of Pain
Jasper Stevens, Kenneth Meijer, Wouter Bijnens, Mathijs C H W Fuchs, Lodewijk W van Rhijn, Joris P S Hermus, Sander van Hoeve, Martijn Poeze, Adhiambo M Witlox
BACKGROUND: Arthrodesis of the first metatarsophalangeal (MTP1) joint is an intervention often used in patients with severe MTP1 joint osteoarthritis and relieves pain in approximately 80% of these patients. The kinematic effects and compensatory mechanism of the foot for restoring a more normal gait pattern after this intervention are unknown. The aim of this study was to clarify this compensatory mechanism, in which it was hypothesized that the hindfoot and forefoot would be responsible for compensation after an arthrodesis of the MTP1 joint...
October 21, 2016: Foot & Ankle International
Silvana Granado Nogueira da Gama, Elaine Fernandes Viellas, Jacqueline Alves Torres, Maria Helena Bastos, Odaléa Maria Brüggemann, Mariza Miranda Theme Filha, Arthur Orlando Correa Schilithz, Maria do Carmo Leal
BACKGROUND: The participation of nurses and midwives in vaginal birth care is limited in Brazil, and there are no national data regarding their involvement. The goal was to describe the participation of nurses and nurse-midwives in childbirth care in Brazil in the years 2011 and 2012, and to analyze the association between hospitals with nurses and nurse-midwives in labor and birth care and the use of good practices, and their influence in the reduction of unnecessary interventions, including cesarean sections...
October 17, 2016: Reproductive Health
Meta N Eek, Kate Himmelmann
Spasticity and muscle weakness is common in children with cerebral palsy (CP). Spasticity can be treated with botulinum neurotoxin-A (BoNT-A), but this drug has also been reported to induce muscle weakness. Our purpose was to describe the effect on muscle strength in the lower extremities after BoNT-A injections in children with CP. A secondary aim was to relate the effect of BoNT-A to gait pattern and range of motion. Twenty children with spastic CP were included in the study, 8 girls and 12 boys (mean age 7...
2016: Frontiers in Human Neuroscience
Gabriela Barbaglia, Núria D Adroher, Gemma Vilagut, Ronny Bruffaerts, Brentan Bunting, José Miguel Caldas de Almeida, Silvia Florescu, Giovanni de Girolamo, Ron de Graaf, Josep Maria Haro, Hristo Hinkov, Vivianne Kovess-Masfety, Herbert Matschinger, Jordi Alonso
OBJECTIVE: To describe the distribution of role limitation in the European population aged 18-64 years and to examine the contribution of health conditions to role limitation using a public-health approach. METHODS: Representative samples of the adult general population (n=13,666) aged 18-64 years from 10 European countries of the World Mental Health (WMH) Surveys Initiative, grouped into three regions: Central-Western, Southern and Central-Eastern. The Composite International Diagnostic Interview (CIDI 3...
October 17, 2016: Gaceta Sanitaria
Helen Louise Adams, Dharamveer Basude, Alison Kyle, Sarah Sandmann, Siba Prosad Paul
Irritable bowel syndrome (IBS) is the most common cause of non-organic recurrent abdominal pain in children. IBS is a clinical diagnosis, which is based on the Rome IV criteria for functional gastrointestinal disorders in children, as well as the patient's history. The diagnosis of IBS is established following the exclusion of organic causes of recurrent abdominal pain. Staggered investigations should be avoided because they might increase the child's and family's anxiety in the absence of an organic diagnosis...
October 12, 2016: Nursing Standard
Tania E Perez Jimenez, Katrina L Mealey, Tamara L Grubb, Stephen A Greene, Michael H Court
Tramadol is widely used to manage mild to moderately painful conditions in dogs. However, this use is controversial since clinical efficacy studies in dogs showed conflicting results, while pharmacokinetic studies demonstrated relatively low circulating concentrations of O-desmethyltramadol (M1). Analgesia has been attributed to the opioid effects of M1, while tramadol and the other major metabolite (N-desmethyltramadol, M2) are considered inactive at opioid receptors. The aims of this study were to determine whether cytochrome P450 (CYP) dependent M1 formation by dog liver microsomes is slower compared with cat and human liver microsomes; and identify the CYPs responsible for M1 and M2 formation in canine liver...
October 6, 2016: Drug Metabolism and Disposition: the Biological Fate of Chemicals
Kristina Klaus, Susanne Fischer, Johanna M Doerr, Urs M Nater, Ricarda Mewes
PURPOSE: Fibromyalgia syndrome (FMS) is associated with psychological distress. The recent revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) raises the question of whether FMS is classifiable as "somatic symptom disorder" (SSD) and consequently as a mental disorder. To address this, the present ambulatory assessment study focuses on the everyday life occurrence of SSD symptoms in FMS and their predictive value concerning severity indicators of widespread pain...
October 18, 2016: International Journal of Behavioral Medicine
Goodarz Golmirzaie, Lindsay S Holland, Stephanie E Moser, Mohit Rastogi, Afton L Hassett, Chad M Brummett
BACKGROUND AND OBJECTIVES: We hypothesized that patients with complex regional pain syndrome (CRPS) with a longer time since their inciting event would demonstrate more symptoms of centralized pain. METHODS: We conducted a cross-sectional analysis of 160 patients with CRPS using validated measures of pain, negative mood, and functioning at the time of their new patient evaluation. The 2011 Fibromyalgia Survey Criteria is a validated self-report measure of widespread body pain and comorbid symptoms (eg, trouble thinking, headaches)...
October 11, 2016: Regional Anesthesia and Pain Medicine
Giuseppe Civitarese
Over five years, from 1919 to 1924, Freud dealt with masochism in three texts written in close proximity: "A Child Is Being Beaten," Beyond the Pleasure Principle, and "The Economic Problem of Masochism." Initially Freud explains masochism as incestuous fixation on the father and regression to pregenital, sadistic ways of loving. Subsequently he considers it primarily as subservient to the death drive. This paper starts from an idea present in two of the three texts, but not developed by Freud, in which he refers to the role that the "qualitative" element of rhythm could play in the occurrence of pleasure in masochism...
October 17, 2016: Journal of the American Psychoanalytic Association
T V K Herregods, A J P M Smout, J L S Ooi, D Sifrim, A J Bredenoord
BACKGROUND: With the advent of high-resolution manometry (HRM), a new diagnosis, jackhammer esophagus, was introduced. Little is known about this rare condition, and the relationship between symptoms and hypercontractility is not always straightforward. The aim of our study was to describe a large cohort of patients with jackhammer esophagus and to investigate whether manometric findings are associated with the presence of symptoms. METHODS: All patients from 06, 2014 until 12, 2015 seen at two tertiary centers with at least one hypercontractile swallow (distal contractile integral [DCI] >8000 mm Hg/s/cm) on HRM were analyzed...
October 17, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
Amabile Borges Dario, Manuela Loureiro Ferreira, Kathryn Refshauge, Alejandro Luque-Suarez, Juan Ramon Ordoñana, Paulo Henrique Ferreira
BACKGROUND: Obesity is commonly investigated as a potential risk factor for LBP, however the current evidence remains unclear. Limitations in previous studies may explain the inconsistent results in the field such as use of a cross-sectional design, limitations in the measures used to assess obesity (e.g. body mass index - BMI) and poor adjustment for confounders (e.g. genetics and physical activity). PURPOSE AND DESIGN: To better understand the effects of obesity on LBP, our aim was to investigate in a prospective cohort whether obesity-related measures increase the risk of chronic LBP outcomes using a longitudinal design...
October 14, 2016: Spine Journal: Official Journal of the North American Spine Society
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