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topical analgesic

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https://www.readbyqxmd.com/read/28614189/a-dose-response-study-of-topical-allyl-isothiocyanate-mustard-oil-as-human-surrogate-model-of-pain-hyperalgesia-and-neurogenic-inflammation
#1
H H Andersen, S Lo Vecchio, P Gazerani, L Arendt-Nielsen
Despite being a ubiquitous animal pain model, the natural TRPA1-agonist allyl-isothiocyanate (AITC, also known as "mustard oil") has only been sparsely investigated as a potential human surrogate model of pain, sensitization, and neurogenic inflammation. Its dose-response as an algogenic, sensitizing irritant remains to be elucidated in human skin. Three concentrations of AITC (10%, 50%, 90%) and vehicle (paraffin) were applied for 5 min to 3x3 cm areas on the volar forearms in 14 healthy volunteers, and evoked pain intensity (visual analog scale 0-100 mm) and pain quality were assessed...
June 9, 2017: Pain
https://www.readbyqxmd.com/read/28602044/the-dynamic-interaction-between-pain-and-opioid-misuse
#2
REVIEW
Adrianne R Wilson-Poe, Jose A Moron
In 2014, drug overdose surpassed automobile accidents as the number one cause of accidental death for the first time in US history. The overdose epidemic is largely driven by opioids, and genuine prescription opioid analgesics play the biggest role in this phenomenon. Despite advancements in abuse deterrent formulations, prescription drug monitoring programs, and clinical assessments for the detection of abuse potential, drug overdoses continue to escalate. The CDC has recently issued new guidelines for opioid prescription, yet even these recommendations have their shortcomings...
June 11, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28593835/pharmacokinetics-of-a-novel-transdermal-fentanyl-solution-in-rhesus-macaques-macaca-mulatta
#3
Gregory W Salyards, Marie-Josee Lemoy, Heather K Knych, Ashley E Hill, Kari L Christe
Rhesus macaques (Macaca mulatta) are the most commonly used NHP biomedical model and experience both research andclinical procedures requiring analgesia. Opioids are a mainstay of analgesic therapy. A novel, transdermal fentanyl solution(TFS) has been developed as a long-acting, single-administration topical opioid and was reported to provide at least 4 d ofeffective plasma concentrations in beagles (Canis familiaris). To evaluate the pharmacokinetic profile of TFS in healthy adultrhesus macaques, we used a 2-period, 2-treatment crossover study of a single topical administration of 1...
June 7, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28592563/the-effects-of-treatment-failure-generalize-across-different-routes-of-drug-administration
#4
Matthias Zunhammer, Markus Ploner, Charlotte Engelbrecht, Johanna Bock, Simon S Kessner, Ulrike Bingel
Failure of medical treatments can hamper responses to subsequent treatments. It has been suggested that changing the route of drug administration could reduce such negative carry-over effects, but direct evidence for this approach is lacking. We therefore investigated in 211 healthy volunteers whether changes in drug administration route reduce such carry-over effects. A positive or negative treatment history with topical analgesic treatments was induced experimentally in a mock clinical trial setting. Subsequently, a different inert drug was introduced via the same (topical) or another (oral) route of administration and its analgesic efficacy was tested...
June 7, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28583486/ototoxicity-associated-with-topical-administration-of-diclofenac-sodium-as-an-otic-drop-an-experimental-animal-study
#5
Engin Acioglu, Ozgur Yigit, Firat Onur, Ahmet Atas, Ela Araz Server, Eyup Kara
OBJECTIVES: The aim of the study is to evaluate the ototoxicity of topical diclofenac sodium in comparison to positive and negative controls prior to the investigation of analgesic and anti-inflammatory efficacy of the agent in otic administration. METHODS: Twenty four ears of 12 guinea pigs were included in the study. Wide myringotomy was performed on all tympanic membranes under general anesthesia and auditory brainstem responses (ABR) were evaluated. The subjects were separated into four groups, two groups received diclofenac sodium at low and high doses, positive controls received gentamicin and negative controls received isotonic sodium chloride topically for 14 days and ABRs were reevaluated...
July 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28579775/capsaicin-loaded-nanolipoidal-carriers-for-topical-application-design-characterization-and-in-vitro-in-vivo-evaluation
#6
Xia-Rong Wang, Si-Qian Gao, Xiao-Qian Niu, Long-Jian Li, Xiao-Ying Ying, Zhong-Jie Hu, Jian-Qing Gao
Capsaicin has been used in clinical applications for the treatment of pain disorders and inflammatory diseases. Given the strong pungency and high oil/water partition coefficient of capsaicin, capsaicin-loaded nanolipoidal carriers (NLCs) were designed to increase permeation and achieve the analgesic, anti-inflammatory effect with lower skin irritation. Capsaicin-loaded NLCs were prepared and later optimized by the Box-Behnken design. The physicochemical characterizations, morphology, and encapsulation of the capsaicin-loaded NLCs were subsequently confirmed...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28567799/cox-2-selective-inhibitors-celecoxib-and-deracoxib-modulate-trpv3-channels
#7
Stefan Spyra, Anne Meisner, Michael Schaefer, Kerstin Hill
BACKGROUND AND PURPOSE: The transient receptor potential vanilloid 3 channel (TRPV3) is a heat-sensitive ion channel which is predominantly expressed in keratinocytes. TRPV3 is involved in multiple physiological and pathophysiological processes within the skin, including cutaneous nociception, temperature sensation, and the development of itch. The role of TRPV3 in such processes is only poorly understood, therefore, the establishment of selective modulators of TRPV3 channels is highly desirable...
May 31, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28546768/effectiveness-of-various-formulations-of-local-anesthetics-and-additives-for-topical-anesthesia-a-prospective-randomized-double-blind-placebo-controlled-study
#8
Christian Weilbach, Christian Hoppe, Matthias Karst, Michael Winterhalter, Konstantinos Raymondos, Arthur Schultz, Niels Rahe-Meyer
BACKGROUND: Topical anesthesia is used to control pain associated with many procedures in medicine. Today, the product most commonly applied for topical anesthesia in Germany is EMLA(®) (lidocaine/prilocaine). However, since prilocaine is a methemoglobin-inducing agent, there are limitations to its use, especially in neonates and infants. The aim of this study was to evaluate the effect of prilocaine and lidocaine as well as propylene glycol, a penetration enhancer, and trometamol, a buffer substance, in anesthetic creams...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28535895/inadequate-pain-relief-among-patients-with-primary-knee-osteoarthritis
#9
Pedro A Laires, Jorge Laíns, Luís C Miranda, Rui Cernadas, Srini Rajagopalan, Stephanie D Taylor, José C Silva
BACKGROUND: Despite the widespread treatments for osteoarthritis (OA), data on treatment patterns, adequacy of pain relief, and quality of life are limited. The prospective multinational Survey of Osteoarthritis Real World Therapies (SORT) was designed to investigate these aspects. OBJECTIVES: To analyze the characteristics and the patient reported outcomes of the Portuguese dataset of SORT at the start of observation. METHODS: Patients ≥50 years with primary knee OA who were receiving oral or topical analgesics were eligible...
May 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28527126/polycaprolactone-based-nanoparticles-loaded-with-indomethacin-for-anti-inflammatory-therapy-from-preparation-to-ex-vivo-study
#10
Waisudin Badri, Karim Miladi, Sophie Robin, Céline Viennet, Qand Agha Nazari, Géraldine Agusti, Hatem Fessi, Abdelhamid Elaissari
PURPOSE: This work focused on the preparation of polycaprolactone based nanoparticles containing indomethacin to provide topical analgesic and anti-inflammatory effect for symptomatic treatment of inflammatory diseases. Indomethacin loaded nanoparticles are prepared for topical application to decrease indomethacin side effects and administration frequency. Oppositely to already reported works, in this research non-invasive method has been used for the enhancement of indomethacin dermal drug penetration...
May 19, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28516471/topical-non-steroidal-anti-inflammatory-drugs-for-analgesia-in-traumatic-corneal-abrasions
#11
REVIEW
Abel Wakai, John G Lawrenson, Annali L Lawrenson, Yongjun Wang, Michael D Brown, Michael Quirke, Omar Ghandour, Ryan McCormick, Cathal D Walsh, Ahmed Amayem, Eddy Lang, Nick Harrison
BACKGROUND: Traumatic corneal abrasions are relatively common and there is a lack of consensus about analgesia in their management. It is therefore important to document the clinical efficacy and safety profile of topical ophthalmic non-steroidal anti-inflammatory drugs (NSAIDs) in the management of traumatic corneal abrasions. OBJECTIVES: To identify and evaluate all randomised controlled trials (RCTs) comparing the use of topical NSAIDs with placebo or any alternative analgesic interventions in adults with traumatic corneal abrasions (including corneal abrasions arising from foreign body removal), to reduce pain, and its effects on healing time...
May 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28508561/diclofenac-for-pain-associated-with-intravitreal-injections-a-prospective-randomized-placebo-controlled-study
#12
Olga E Makri, Foteini N Tsapardoni, Dionisios D Pagoulatos, Nikolaos Pharmakakis, Constantine D Georgakopoulos
IMPORTANCE: Intravitreal injections (IVI) are often associated with pain. BACKGROUND: To evaluate the analgesic effect of diclofenac in patients undergoing IVI. DESIGN: Single-centre, prospective, randomized, triple-arm, placebo-controlled, interventional study in the University Hospital of Patras. PARTICIPANTS: Seventy-four patients. METHODS: Group 1 (n = 25) received topical diclofenac 45 minutes before IVI, Group 2 (n = 25) received oral diclofenac 4 hours before IVI and topical diclofenac while Group 3 (n = 24) received placebo before IVI...
May 15, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28503818/lidocaine-for-pain-control-during-intrauterine-device-insertion
#13
Yetkin Karasu, Duygu Kavak Cömert, Burak Karadağ, Yusuf Ergün
AIM: The aim of this study was to compare the effects of topical lidocaine spray, cream and injection on pain perception during intrauterine device (IUD) insertion. METHODS: Multiparous women of reproductive age were randomized into control, lidocaine cream, spray and injection groups. A 10 cm visual analog scale was used for all patients to evaluate pain during the three steps of the IUD insertion procedure. Baseline pain assessment was made immediately after the administration of analgesics, the second pain assessment was performed immediately after use of the tenaculum, and the third pain assessment was performed after IUD insertion...
May 15, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28498604/post-operative-interventions-to-reduce-inflammatory-complications-after-third-molar-surgery-review-of-the-current-evidence
#14
REVIEW
Howard Cho, Anthony J Lynham, Edward Hsu
BACKGROUND: Inflammatory complications such as pain, swelling, trismus, infection and alveolar osteitis, have an adverse affect on the quality of life of patients after third molar removal. This review presents the current evidence on post-operative strategies to reduce these complications. METHODS: A literature search was performed to identify articles published in English between 2000 to 2016 using the following key words: third molar(s), wisdom tooth/teeth, pain, swelling, trismus, infection, alveolar osteitis, and dry socket...
May 12, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28497473/topical-analgesics-for-acute-and-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#15
REVIEW
Sheena Derry, Philip J Wiffen, Eija A Kalso, Rae F Bell, Dominic Aldington, Tudor Phillips, Helen Gaskell, R Andrew Moore
BACKGROUND: Topical analgesic drugs are used for a variety of painful conditions. Some are acute, typically strains or sprains, tendinopathy, or muscle aches. Others are chronic, typically osteoarthritis of hand or knee, or neuropathic pain. OBJECTIVES: To provide an overview of the analgesic efficacy and associated adverse events of topical analgesics (primarily nonsteroidal anti-inflammatory drugs (NSAIDs), salicylate rubefacients, capsaicin, and lidocaine) applied to intact skin for the treatment of acute and chronic pain in adults...
May 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28480151/efficacy-of-topical-analgesics-in-pain-control-for-corneal-abrasions-a-systematic-review
#16
REVIEW
Bryan Thiel, Alexandra Sarau, Daniel Ng
Corneal abrasions are one of the most common ocular injuries seen in the emergency department. While most patients with corneal abrasions complain of excruciating pain, permanent sequelae may develop if not managed properly. The use of topical antibiotics and other standards of treatment have greatly reduced the incidence of complications. However, there is still a lack of consensus regarding the proper management of pain in corneal abrasions. Proposed analgesics for the control of corneal abrasion pain include topical nonsteroidal anti-inflammatory drugs (NSAIDs), topical anesthetics, and topical cycloplegics...
March 27, 2017: Curēus
https://www.readbyqxmd.com/read/28473518/randomised-controlled-trial-evaluating-the-short-term-analgesic-effect-of-topical-diclofenac-on-chronic-achilles-tendon-pain-a-pilot-study
#17
Erin Rebecca Bussin, Brian Cairns, Jim Bovard, Alexander Scott
OBJECTIVES: To determine if a topically applied non-steroidal anti-inflammatory drug (diclofenac) can provide short-term pain relief for chronic Achilles tendinopathy (CAT), in order to inform the development of a new rehabilitation protocol. DESIGN AND SETTING: Pilot double-blind, cross-over randomised controlled trial providing participants with tertiary care. The study was conducted at a single research centre in Vancouver, BC. PARTICIPANTS: Sixteen adults with unilateral CAT and three adults with bilateral CAT participated...
May 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28467739/effects-of-a-transdermal-lidocaine-patch-on-indicators-of-postoperative-pain-in-dogs-undergoing-midline-ovariohysterectomy
#18
Danielle K Merema, Emily K Schoenrock, Kevin Le Boedec, Maureen A McMichael
OBJECTIVE To determine the effects of a transdermal lidocaine patch (TLP) on indicators of postoperative pain in healthy dogs following ovariohysterectomy. DESIGN Randomized, blinded controlled trial. ANIMALS 40 healthy shelter-owned female dogs admitted to a student surgery program for ovariohysterectomy. PROCEDURES Dogs were randomly assigned to receive after ovariohysterectomy a 5-cm-wide strip of TLP applied topically on both sides of the incision, for the full length of the incision and a wound dressing (n = 19) or a placebo patch (nonmedicated wound dressing; 21)...
May 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28459052/development-of-a-piglet-grimace-scale-to-evaluate-piglet-pain-using-facial-expressions-following-castration-and-tail-docking-a-pilot-study
#19
Abbie V Viscardi, Michelle Hunniford, Penny Lawlis, Matthew Leach, Patricia V Turner
Facial expressions are increasingly being used to assess pain in non-human species, including rodents, horses, and lambs. The development of these species-specific grimace scales has allowed for more rapid pain detection, which can lead to better animal welfare if intervention promptly occurs. For grimace scales to ever be used as a stand-alone measure of pain, it is important they correlate with established pain assessment tools, such as behavioral analysis. This preliminary study aimed to determine whether piglets exhibit pain grimacing and if these facial expressions correlate with their behavior...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28456909/patients-and-parents-views-regarding-supportive-care-in-childhood-cancer
#20
L J A Tenniglo, E A H Loeffen, L C M Kremer, A Font-Gonzalez, R L Mulder, A Postma, M C Naafs-Wilstra, M A Grootenhuis, M D van de Wetering, W J E Tissing
PURPOSE: Intensive therapies in pediatric malignancies increased survival rates but also occurrence of treatment-related morbidities. Therefore, supportive care fulfills an increasingly important role. In planning development of guidelines with incorporation of shared decision making, we noticed that little is known about the needs and preferences of patients and their parents. Our goals were therefore to investigate (1) which supportive care topics patients and parents regard as most important and (2) the preferred role they wish to fulfill in decision making...
April 29, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
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