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https://www.readbyqxmd.com/read/28328895/side-effects-of-pain-and-analgesia-in-animal-experimentation
#1
REVIEW
Paulin Jirkof
This review highlights selected effects of untreated pain and of widely used analgesics such as opioids, non-steroid anti-inflammatory drugs and antipyretics, to illustrate the relevance of carefully planned, appropriate and controlled analgesia for greater reproducibility in animal experiments involving laboratory rodents.
March 22, 2017: Lab Animal
https://www.readbyqxmd.com/read/28328836/the-efficacy-of-periarticular-drug-infiltration-for-postoperative-pain-after-total-hip-arthroplasty-a-systematic-review-and-meta-analysis
#2
Yanyang Wang, Fuqiang Gao, Wei Sun, Bailiang Wang, Wanshou Guo, Zirong Li
BACKGROUND: The ability of intraoperative periarticular drug infiltration (PDI) to control pain after total hip arthroplasty (THA) has been studied for many times, but it still remains controversial. Therefore, we undertook a meta-analysis to evaluate the efficacy and safety of PDI on postoperative pain after THA. METHODS: Databases, including Pubmed, Medline, Embase, Web of Science, and Cochrane library, were searched to identify randomized controlled trials concerning PDI for pain management in patients undergoing THA...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328826/effect-of-adductor-canal-block-on-medial-compartment-knee-pain-in-patients-with-knee-osteoarthritis-retrospective-comparative-study
#3
Doo-Hyung Lee, Michael Y Lee, Kyu-Sung Kwack, Seung-Hyun Yoon
Knee osteoarthritis (KOA) is a common disease in middle-aged and elderly people. Pain is the chief complaint of symptomatic KOA and a leading cause of chronic disability, which is most often found in medial knees. The aim of this study is to evaluate the efficacy of pain relief and functional improvement in KOA patients treated with ultrasound-guided adductor canal block (ACB).This is a 3-month retrospective case-controlled comparative study. Two hundred patients with anteromedial knee pain owing to KOA that was unresponsive to 3-month long conservative treatments...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328756/pectoralis-and-serratus-fascial-plane-blocks-each-provide-early-analgesic-benefits-following-ambulatory-breast-cancer-surgery-a-retrospective-propensity-matched-cohort-study
#4
Faraj W Abdallah, David MacLean, Caveh Madjdpour, Tulin Cil, Anuj Bhatia, Richard Brull
BACKGROUND: Pectoralis and serratus blocks have been described recently for use in breast surgery, but evidence supporting their analgesic benefits is limited. This cohort study evaluates the benefits of adding a pectoralis or serratus block to conventional opioid-based analgesia (control) in patients who underwent ambulatory breast cancer surgery at Women's College Hospital between July 2013 and May 2015. We tested the joint hypothesis that adding a pectoralis or serratus block reduced postoperative in-hospital (predischarge) opioid consumption and nausea and vomiting (PONV)...
March 21, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28328698/reduced-sufentanil-doses-are-effective-for-postoperative-analgesia-after-ductal-closure-in-extremely-premature-infants-a-10-years-retrospective-cohort-study
#5
Yohan Soreze, Etienne Audureau, Fabrice Decobert, Olivier Jaby, Sabine Blary, Claude Danan, Xavier Durrmeyer
OBJECTIVES: The objective of the study was to assess the efficacy of reduced sufentanil doses for postoperative analgesia following surgical ductal closure in extremely premature infants. METHODS: This was a retrospective, single-center, cohort study comparing 2 sufentanil dosing regimens used between 2001 and 2010 and included all infants born at <28 weeks of gestation with surgical ductal closure. Sufentanil doses were reduced in 2007 as a standard of care...
March 21, 2017: Clinical Journal of 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
#6
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/28328571/neuropathic-pain-induced-enhancement-of-spontaneous-and-pain-evoked-neuronal-activity-in-the-periaqueductal-gray-that-is-attenuated-by-gabapentin
#7
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/28328552/il-1%C3%AE-levels-are-associated-with-chronic-multisite-pain-in-people-living-with-hiv
#8
Jessica S Merlin, Andrew O Westfall, Sonya L Heath, Burel R Goodin, Jesse C Stewart, Robert E Sorge, Jarred Younger
BACKGROUND: The pathophysiology of chronic pain experienced by people living with HIV (PLWH) in the current antiretroviral treatment era is poorly understood. We sought to investigate the relationship between inflammation and chronic pain in PLWH. We hypothesized that, among PLWH who have undetectable HIV viral loads, those with Chronic Multisite Pain (CMP) would have higher levels of circulating pain-related inflammatory markers than those without chronic pain. SETTING: This study was conducted at the University of Alabama at Birmingham's Center for AIDS Research Network of Integrated Clinical System (CNICS) site...
March 20, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28328314/from-education-to-practice-addressing-opioid-misuse-through-healthcare-provider-training-a-special-issue-of-saj
#9
Adam J Gordon, John Daniel Harding
Opioid misuse may be ignored by providers who are unwilling or not confident in engaging the complex nature of substance use disorders among their patient populations. Addiction is a complex disease and although providers often are comfortable in identifying, assessing, and treating the complex diseases of their patients, basic knowledge and skills of identification, assessment, and treatment expertise involving opioids for pain, addressing opioid misuse, and treatment of opioid use disorder are lacking. Initiatives to improve knowledge of opioid use, misuse, and opioid use disorder among health care providers are emerging...
March 22, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28328199/fentanyl-initiated-polymers-prepared-by-atrp-for-targeted-delivery
#10
Devora Cohen-Karni, Marina Kovaliov, Shaohua Li, Stephen Jaffee, Nestor D Tomycz, Saadyah Averick
The targeted delivery of polymers to neurons is a challenging yet important goal for polymer based drug delivery. We prepared a fentanyl based atom transfer radical polymerization (ATRP) initiator to target the Mu opioid receptor (MOR) for neuronal targeting. We incorporated our recently discovered rigid acrylate linking group into the initiator to retain a high degree of binding to the MOR and grafted random or block copolymers of poly(oligo(ethylene oxide) methacrylate)-block-(glycidyl methacrylate). Trifluoroethanol promoted amine ring opening of the glycidyl methacrylate was used for post-polymerization modification of the fentanyl initiated polymers to attach a near-infrared fluorescent dye (ADS790WS) or to build a targeted siRNA delivery system via modification with secondary amines...
March 22, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28328155/does-dynorphin-play-a-role-in-the-onset-of-puberty-in-female-sheep
#11
J A Lopez, M N Bedenbaugh, R B McCosh, P W Weems, L J Meadows, B Wisman, L M Coolen, R L Goodman, S M Hileman
Puberty onset involves increased gonadotrophin-release (GnRH) release as a result of decreased sensitivity to oestrogen (E2 )-negative feedback. Because GnRH neurones lack E2 receptor α, this pathway must contain interneurones. One likely candidate is KNDy neurones (kisspeptin, neurokinin B, dynorphin). The overarching hypothesis of the present study was that the prepubertal hiatus in luteinising hormone (LH) release involves reduced kisspeptin and/or heightened dynorphin input. We first tested the specific hypothesis that E2 would reduce kisspeptin-immunopositive cell numbers and increase dynorphin-immunopositive cell numbers...
December 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28328148/long-term-follow-up-study-of-community-based-patients-receiving-xr-ntx-for-opioid-use-disorders
#12
Arthur Robin Williams, Vincent Barbieri, Kaitlyn Mishlen, Frances R Levin, Edward V Nunes, John J Mariani, Adam Bisaga
BACKGROUND AND OBJECTIVES: Extended-release naltrexone (XR-NTX) is FDA-approved to prevent relapse in patients with Opioid Use Disorder. However little is known about long-term use among community-based outpatients. METHODS: Retrospective chart review and long-term follow-up survey among individuals (N = 168) who entered an outpatient XR-NTX trial between 2011 and 2015, during which participants were offered three monthly injections of XR-NTX at no cost. The survey consisted of 35 questions covering a total of four domains: (1) substance use; (2) treatment continuation; (3) barriers; and (4) attitudes...
March 22, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28327612/endogenous-opioids-regulate-moment-to-moment-neuronal-communication-and-excitability
#13
Bryony L Winters, Gabrielle C Gregoriou, Sarah A Kissiwaa, Oliver A Wells, Danashi I Medagoda, Sam M Hermes, Neil T Burford, Andrew Alt, Sue A Aicher, Elena E Bagley
Fear and emotional learning are modulated by endogenous opioids but the cellular basis for this is unknown. The intercalated cells (ITCs) gate amygdala output and thus regulate the fear response. Here we find endogenous opioids are released by synaptic stimulation to act via two distinct mechanisms within the main ITC cluster. Endogenously released opioids inhibit glutamate release through the δ-opioid receptor (DOR), an effect potentiated by a DOR-positive allosteric modulator. Postsynaptically, the opioids activate a potassium conductance through the μ-opioid receptor (MOR), suggesting for the first time that endogenously released opioids directly regulate neuronal excitability...
March 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28327548/opioid-sparing-effect-of-cannabinoids-a-systematic-review-and-meta-analysis
#14
REVIEW
Suzanne Nielsen, Pamela Sabioni, Jose M Trigo, Mark A Ware, Brigid D Betz-Stablein, Bridin Murnion, Nicholas Lintzeris, Kok Eng Khor, Michael Farrell, Andrew Smith, Bernard Le Foll
Cannabinoids, when co-administered with opioids, may enable reduced opioid doses without loss of analgesic efficacy (ie an opioid-sparing effect). The aim of this study was to conduct a systematic review to determine the opioid-sparing potential of cannabinoids. Eligible studies included pre-clinical and clinical studies for which the outcome was either analgesia or opioid dose requirements. Clinical studies included controlled studies and case series. We searched Scopus, Cochrane Database of Systematic Reviews, Medline, and Embase...
March 22, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28327378/gender-related-psychopathology-in-opioid-use-disorder-results-from-a-representative-sample-of-italian-addiction-services
#15
Beniamino Leone, Marco Di Nicola, Lorenzo Moccia, Mauro Pettorruso, Luisa De Risio, Giuseppe Nucara, Lorenzo Zamboni, Antonino Callea, Luigi Janiri, Mauro Cibin, Fabio Lugoboni
AIMS: Gender and psychiatric comorbidity seem to influence patients' inter-individual response to Opioid Substitution Treatments (OST) in Opioid Use Disorder (OUD) management. The aim of the study was to assess psychopathological dimensions in an Italian sample of OUD individuals entering a methadone/buprenorphine maintenance program; secondary, we evaluated the possible gender-specific differences within the psychopathological profiles. METHODS: In a cross-sectional study, we recruited 1052 (792 male; 260 female) OUD subjects receiving OST...
March 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28326952/latin-american-guidelines-for-cancer-pain-management
#16
Argelia Lara-Solares, Marisol Ahumada Olea, Amparito de Los Ángeles Basantes Pinos, Sara Bistre Cohén, Patricia Bonilla Sierra, Eva Rossina Duarte Juárez, Omar A Símon Escudero, Juan Guillermo Santacruz Escudero, José Alberto Flores Cantisani
Cancer is a major public health issue. Poor pain management has devastating consequences that seriously affect quality of life, diminish functionality and place a huge emotional burden on patients and their relatives. A group of Latin American opinion leaders were invited to participate in a meeting to discuss areas associated with cancer pain. The expert panel reviewed the latest literature to draft region-specific guidelines for effective pain management. The guidelines make recommendations on tailoring treatment to the specific type of pain and provide local physicians with the state-of-the art findings in the field...
March 13, 2017: Pain Management
https://www.readbyqxmd.com/read/28326949/the-need-for-an-ethics-framework-for-the-use-of-opioids-in-the-treatment-of-chronic-nonmalignant-pain
#17
Michael A Erdek, Peter J Pronovost
No abstract text is available yet for this article.
March 3, 2017: Pain Management
https://www.readbyqxmd.com/read/28326948/rare-presentation-of-intrathecal-morphine-withdrawal-psychosis
#18
Rohit Aiyer, Vivek Jain, Anurag Bhatia, Boris Mekinulov, Semih Gungor
We report a case of a 57-year-old male patient with intrathecal morphine pump failure who presented with psychosis as part of a clinical presentation of opioid withdrawal. The patient was being treated for chronic back pain with an intrathecal morphine pump for several years. The patient spontaneously started to experience psychotic symptoms which included disorganized thinking, delusional thoughts, paranoia, auditory and visual hallucinations. Upon interrogation of intrathecal pump, it was found not to be functioning, thereby not delivering intrathecal morphine...
February 28, 2017: Pain Management
https://www.readbyqxmd.com/read/28326630/addressing-the-prescription-opioid-crisis-potential-for-hospital-based-interventions
#19
EDITORIAL
Brian Kim, Seonaid Nolan, Lianping Ti
No abstract text is available yet for this article.
March 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28326568/early-response-predicts-a-sustained-response-to-eluxadoline-in-patients-with-irritable-bowel-syndrome-with-diarrhoea-in-two-phase-3-studies
#20
W D Chey, L S Dove, D A Andrae, P S Covington
BACKGROUND: The mixed μ- and κ-opioid receptor agonist and δ-opioid receptor antagonist, eluxadoline, is licensed in the USA for the treatment of irritable bowel syndrome with diarrhoea (IBS-D), based on the results of two large Phase 3 clinical trials. AIM: To understand the time course of treatment benefits with eluxadoline by comparing responder rates over the first month of treatment with responder rates over longer treatment intervals. METHODS: In this post hoc analysis of two Phase 3 studies, composite and adequate relief (AR) responder rates were calculated over month 1 and patients were stratified by their responder status...
March 22, 2017: Alimentary Pharmacology & Therapeutics
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