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https://www.readbyqxmd.com/read/28195856/pharmacoepidemiologic-analyses-of-opioid-use-among-oef-oif-ond-veterans
#1
Teresa J Hudson, Jacob T Painter, Bradley C Martin, Mark A Austen, James S Williams, John C Fortney, Mark D Sullivan, Mark J Edlund
There is a great deal of concern about opioid use in veterans, particularly those who served in Afghanistan (OEF) and Iraq (OIF and OND). The current study provides a detailed pharmacoepidemiologic analysis of opioid use among OEF/OIF/OND veterans from FY09 to FY12. Data from 3 data repositories from the Veterans Health Administration (VHA) were used to describe demographic, clinical, and medication characteristics associated with opioid use among OEF/OIF/OND veterans and among those with TBI. Logistic regression models were used to identify risks associated with chronic opioid use in FY12...
March 25, 2017: Pain
https://www.readbyqxmd.com/read/28338566/midazolam-as-an-active-placebo-in-three-fentanyl-validated-nociceptive-pain-models
#2
Julian Prosenz, Burkhard Gustorff
The use of inactive placebos in early translational trials of potentially analgesic compounds is discouraged due to the side-effect profiles of centrally acting analgesics. Therefore, benzodiazepines are used, although their use has not been validated in this context. Whether benzodiazepines confound the results of acute pain tests is unknown. Midazolam (0.06 mg/kg) as an active placebo was investigated in three nociceptive models that included contact heat, electrical pain, and pressure pain thresholds in 24 healthy volunteers...
March 23, 2017: Pain
https://www.readbyqxmd.com/read/28333699/biomarker-of-extracellular-matrix-remodelling-c1m-and-proinflammatory-cytokine-il-6-are-related-to-synovitis-and-pain-in-endstage-knee-osteoarthritis-patients
#3
Maja R Radojčić, Christian S Thudium, Kim Henriksen, Keith Tan, Rolf Karlsten, Amanda Dudley, Iain Chessell, Morten A Karsdal, Anne-Christine Bay-Jensen, Michel D Crema, Ali Guermazi
Little is known about local and systemic biomarkers in relation to synovitis and pain in end-stage osteoarthritis (OA) patients. We investigated the associations between the novel extracellular matrix biomarker, C1M, and local and systemic interleukin 6 (IL-6) with synovitis and pain. Serum C1M, plasma and synovial fluid IL-6 (p-IL-6, sf-IL-6) were measured in 104 end-stage knee OA patients. Contrast-enhanced magnetic resonance imaging (MRI) was used to semi-quantitatively assess an 11-point synovitis score; pain was assessed by the Western Ontario & McMaster Universities Osteoarthritis Index (WOMAC) and the Neuropathic Pain Questionnaire (NPQ)...
March 22, 2017: Pain
https://www.readbyqxmd.com/read/28328578/sustained-improvements-in-pain-mood-function-and-opioid-use-post-interdisciplinary-pain-rehabilitation-in-patients-weaned-from-high-and-low-dose-chronic-opioid-therapy
#4
Kelly L Huffman, Taylor E Rush, Youran Fan, Giries W Sweis, Brinder Vij, Edward C Covington, Judith Scheman, Manu Mathews
Increased prescribing of opioids for chronic non cancer pain is associated with significant social costs, including overdose and addiction. In this context, there is interest in interdisciplinary chronic pain rehabilitation programs (ICPRP) focusing on self-management and minimizing opioid use. This study examined outcomes of patients weaned from opioids in an ICPRP from 2007-2012. Participants included 413 patients on high dose (HD) chronic opioid therapy (COT; >100mg), 528 on low dose (LD) COT and 516 not on opioids (NO)...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328577/parkinson-s-disease-and-musculoskeletal-pain-an-8-year-population-based-cohort-study
#5
Wei-Hung Lien, Wei-Chih Lien, Ta-Shen Kuan, Shang-Te Wu, Yi-Ting Chen, Ching-Ju Chiu
The aim of the present study was to evaluate the incidence and clinical features of musculoskeletal pain (MSP) in patients with Parkinson's disease (PD) compared to a control group without the disease. The retrospective cohort study used a subset of the Taiwan National Health Insurance Research Database (NHIRD) comprising information on one million beneficiaries randomly sampled from the entire population of Taiwan. A total of 490 patients aged 50 and above with newly diagnosed Parkinson's disease were identified during a period from 2000-2005...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328576/chronic-pain-patients-perspectives-of-medical-cannabis
#6
Brian J Piper, Monica L Beals, Alexander T Abess, Stephanie D Nichols, Maurice Martin, Catherine M Cobb, Rebecca M DeKeuster
Medical cannabis (MC) is employed for a variety of conditions including chronic pain. The goal of this report was to provide an in-depth qualitative exploration of patient perspectives on the strengths and limitations of MC. Members of MC dispensaries (N = 984) in New England including two-thirds with a history of chronic pain completed an online survey. In response to "How effective is medical cannabis in treating your symptoms or conditions?", with options of 0% "no relief" to 100% "complete relief", the average was 74...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328575/predictors-and-social-consequences-of-daily-pain-expectancy-among-adults-with-chronic-pain
#7
Chung Jung Mun, Kirti Thummala, Mary C Davis, Paul Karoly, Howard Tennen, Alex J Zautra
Previous research suggests that for people living with chronic pain, pain expectancy can undermine access to adaptive resources and functioning. We tested and replicated the unique effect of pain expectancy on subsequent pain through two daily diary studies. We also extended previous findings by examining cognitive and affective antecedents of pain expectancy and the consequences of pain expectancy for daily social enjoyment and stress. In Study 1, 231 individuals with rheumatoid arthritis completed 30-end of day diaries...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328574/the-long-term-reliability-of-static-and-dynamic-quantitative-sensory-testing-in-healthy-individuals
#8
Anna Marcuzzi, Paul J Wrigley, Catherine M Dean, Roger Adams, Julia M Hush
Quantitative sensory tests (QST) have been increasingly used to investigate alterations in somatosensory function in a wide range of painful conditions. The interpretation of these findings is based on the assumption that the measures are stable and reproducible. To date, reliability of QST has been investigated for short test-retest intervals. The aim of this study was to investigate the long-term reliability of a multimodal QST assessment in healthy people, with testing conducted on three occasions over 4-months...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328573/activity-rhythms-and-clinical-correlates-in-fibromyalgia
#9
Ariel B Neikrug, Gary Donaldson, Eli Iacob, Sam L Williams, Christopher A Hamilton, Akiko Okifuji
The primary aim of this study was to evaluate activity rhythms in fibromyalgia syndrome (FMS) and their association with FMS-related symptoms. We hypothesized that stronger and more consistent activity rhythms would be associated with reduced symptom severity and presentation in FMS. 292 patients with FMS (Mean age = 45.1±11.1; 272 females) provided a 7-day actigraphy recording and responses to questionnaires addressing degree of pain, fatigue, mood, and physical impairment. Using a simple cosine model, we extracted Amplitude (activity range), Phi (time at maximum), Mesor (mean activity), and their variabilities (across days) from each participant's actigraphy...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328572/multimodal-pain-therapy-in-chronic-noncancer-pain-gold-standard-or-need-for-further-clarification
#10
Ulrike Kaiser, Rolf-Detlef Treede, Rainer Sabatowski
No abstract text is available yet for this article.
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328571/neuropathic-pain-induced-enhancement-of-spontaneous-and-pain-evoked-neuronal-activity-in-the-periaqueductal-gray-that-is-attenuated-by-gabapentin
#11
Vijay K Samineni, Louis S Premkumar, Carl L Faingold
Neuropathic pain is a debilitating pathological condition that is poorly understood. Recent evidence suggests that abnormal central processing occurs during the development of neuropathic pain induced by the cancer chemotherapeutic agent, paclitaxel. Yet, it is unclear what role neurons in supraspinal pain network sites, such as the periaqueductal gray, play in altered behavioral sensitivity seen during chronic pain conditions. To elucidate these mechanisms, we studied the spontaneous and thermally-evoked firing patterns of ventrolateral periaqueductal gray (vlPAG) neurons in awake behaving rats treated with paclitaxel to induce neuropathic pain...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28328579/resting-state-functional-connectivity-predicts-longitudinal-pain-symptom-change-in-urologic-chronic-pelvic-pain-syndrome-a-mapp-network-study
#12
Jason J Kutch, Jennifer S Labus, Richard E Harris, Katherine T Martucci, Melissa A Farmer, Sonja Fenske, Connor Fling, Eric Ichesco, Scott Peltier, Bogdan Petre, Wensheng Guo, Xiaoling Hou, Alisa J Stephens, Chris Mullins, Daniel J Clauw, Sean C Mackey, A Vania Apkarian, J Richard Landis, Emeran A Mayer
Chronic pain symptoms often change over time, even in individuals who have had symptoms for years. Studying biological factors that predict trends in symptom change in chronic pain may uncover novel pathophysiological mechanisms and potential therapeutic targets. In this study, we investigated whether brain functional connectivity measures obtained from resting-state functional MRI (rs-fMRI) at baseline can predict longitudinal symptom change (3, 6, and 12 months post-scan) in urologic chronic pelvic pain syndrome (UCPPS)...
March 17, 2017: Pain
https://www.readbyqxmd.com/read/28306605/hyperalgesic-priming-type-ii-induced-by-repeated-opioid-exposure-maintenance-mechanisms
#13
Dioneia Araldi, Luiz F Ferrari, Jon D Levine
We previously developed a model of opioid-induced neuroplasticity in the peripheral terminal of the nociceptor that could contribute to opioid-induced hyperalgesia, type II hyperalgesic priming. Repeated administration of mu-opioid receptor (MOR) agonists, such as DAMGO, at the peripheral terminal of the nociceptor, induces long-lasting plasticity expressed, prototypically as opioid-induced hyperalgesia and prolongation of prostaglandin-E2-induced hyperalgesia. In this study, we evaluated the mechanisms involved in the maintenance of type II priming...
March 14, 2017: Pain
https://www.readbyqxmd.com/read/28282362/gene-to-gene-interactions-regulate-endogenous-pain-modulation-in-fibromyalgia-patients-and-healthy-controls-antagonistic-effects-between-opioid-and-serotonin-related-genes
#14
Tour Jeanette, Löfgren Monika, Mannerkorpi Kaisa, Gerdle Björn, Larsson Anette, Palstam Annie, Bileviciute-Ljungar Indre, Bjersing Jan, Ingvar Martin, Ernberg Malin, Schalling Martin, Kosek Eva
Chronic pain is associated with dysfunctional endogenous pain modulation, involving both central opioid and serotonergic (5-HT) signaling. Fibromyalgia (FM) is a chronic pain syndrome, characterized by widespread musculoskeletal pain and reduced exercise-induced hypoalgesia (EIH). In this study, we assessed the effects of three functional genetic polymorphisms on EIH in 130 patients with FM and 132 healthy controls (HC). Subjects were genotyped regarding the mu-opioid receptor (OPRM1) gene (rs1799971), the serotonin transporter (5-HTT) gene (5-HTTLPR/rs25531) and the serotonin-1a receptor (5-HT1a) gene (rs6296)...
March 7, 2017: Pain
https://www.readbyqxmd.com/read/28282361/use-of-analgesics-in-young-adults-as-a-predictor-of-health-care-utilization-and-pain-prevalence-israel-defense-forces-experience
#15
Karina Dorfman, Olga Komargodski, Racheli Magnezi, Stanislav Lifshitz, Dorit Tzur, Nirit Yavnai, Gal Ifergane
Pain evaluation in large community studies is difficult. Analgesics can be a useful tool in estimating pain related conditions in which analgesic use is highly regulated. In this study we evaluated analgesics consumption patterns of regular Israel Defense Force soldiers. We have performed a historical cohort study of 665,137 young adults during active duty in 2002-2012. Analgesics were prescribed to 518,242 (78%) soldiers, mostly for musculoskeletal pain (69.3%), abdominal pain (12.7%) and headache (12.1%)...
March 7, 2017: Pain
https://www.readbyqxmd.com/read/28267067/hdac6-inhibition-effectively-reverses-chemotherapy-induced-peripheral-neuropathy
#16
Karen Krukowski, Jiacheng Ma, Olga Golonzhka, Geoffroy O Laumet, Tanuja Gutti, John H van Duzer, Ralph Mazitschek, Matthew B Jarpe, Cobi J Heijnen, Annemieke Kavelaars
Chemotherapy-induced peripheral neuropathy is one of the most common doselimiting side-effects of cancer treatment. Currently, there is no FDA-approved treatment available. Histone deacetylase 6 (HDAC6) is a microtubule-associated deacetylase whose function includes regulation of á-tubulin-dependent intracellular mitochondrial transport. Here we examined the effect of HDAC6 inhibition on established cisplatin-induced peripheral neuropathy. We used a novel HDAC6 inhibitor ACY-1083, which shows 260-fold selectivity towards HDAC6 versus other HDACs...
March 4, 2017: Pain
https://www.readbyqxmd.com/read/28267066/prevalence-and-incidence-of-chronic-pain-with-or-without-neuropathic-characteristics-in-patients-with-cancer
#17
Didier Bouhassira, Elisabeth Luporsi, Ivan Krakowski
This prospective national multicentre study was carried out to estimate the prevalence and incidence of chronic pain with or without neuropathic characteristics in patients with cancer in France. All consecutive outpatients (n = 1885) seen over two weeks for cancer treatment in 12 oncology units were invited to participate in the study and 1805 were included. Patients underwent a clinical examination during visit 1, and a questionnaire was completed to detect chronic pain (defined as daily pain for at least three months) and to characterise its intensity, location and neuropathic characteristics (i...
March 4, 2017: Pain
https://www.readbyqxmd.com/read/28267065/pain-and-pharmacologic-pain-management-in-long-stay-nursing-home-residents
#18
Jacob N Hunnicutt, Christine M Ulbricht, Jennifer Tjia, Kate L Lapane
Prior studies estimate that >40% of long-stay nursing home (NH) residents experience persistent pain, with 20% of residents in pain receiving no analgesics. Strengthened NH surveyor guidance and improved pain measures on the Minimum Data Set (MDS) 3.0 were introduced in March 2009 and October 2010, respectively. This study aimed to provide estimates after these important initiatives of: 1) prevalence and correlates of persistent pain; and 2) prevalence and correlates of untreated or undertreated persistent pain...
March 4, 2017: Pain
https://www.readbyqxmd.com/read/28267064/nerve-injury-induced-epigenetic-silencing-of-opioid-receptors-controlled-by-dnmt3a-in-primary-afferent-neurons
#19
Linlin Sun, Jian-Yuan Zhao, Xiyao Gu, Lingli Liang, Shaogen Wu, Kai Mo, Jian Feng, Weixiang Guo, Jun Zhang, Alex Bekker, Xinyu Zhao, Eric J Nestler, Yuan-Xiang Tao
Opioids are the gold standard for pharmacological treatment of neuropathic pain, but their analgesic effects are unsatisfactory in part due to nerve injury-induced downregulation of opioid receptors in dorsal root ganglia (DRG) neurons. How nerve injury drives such downregulation remains elusive. DNA methyltransferase-(DNMT-) triggered DNA methylation represses gene expression. We show here that blocking the nerve injury-induced increase in DRG DNMT3a (a de novo DNMT) rescued the expression of Oprm1 and Oprk1 mRNAs and their respective encoding mu opioid receptor (MOR) and kappa opioid receptor (KOR) proteins in the injured DRG...
March 4, 2017: Pain
https://www.readbyqxmd.com/read/28267063/a-developmental-perspective-on-the-impact-of-chronic-pain-in-late-adolescence-and-early-adulthood-implications-for-assessment-and-intervention
#20
Brittany N Rosenbloom, Jennifer A Rabbitts, Tonya M Palermo
No abstract text is available yet for this article.
March 4, 2017: Pain
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