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https://www.readbyqxmd.com/read/28934782/the-dose-dependent-effects-of-ketoprofen-on-dynamic-pain-after-open-heart-surgery
#1
Vedat Eljezi, Claire Biboulet, Henri Boby, Pierre Schoeffler, Bruno Pereira, Christian Duale
BACKGROUND: Non-steroidal anti-inflammatory drugs (NSAIDs) can reduce postoperative pain, in both static (i.e., at rest) and dynamic contexts (e.g., during coughing or mobilization), and reduced doses could improve their efficacy/tolerance balance. OBJECTIVES: To test this hypothesis of efficacy after open heart surgery, in which NSAIDs are poorly used, particularly for safety concerns. STUDY DESIGN: Randomized, double-blind trial. SETTING: Single-center, French university hospital...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28920690/regional-intestinal-permeability-in-rats-a-comparison-of-methods
#2
Carl Roos, David Dahlgren, E Sjögren, Christer Tannergren, Bertil Abrahamsson, H Lennernas
Currently, the screening of new drug candidates for intestinal permeation is typically based on in vitro models which give no information regarding regional differences along the gut. When evaluation of intestinal permeability by region is undertaken, two preclinical rat models are commonly used, the Ussing chamber method and single-pass intestinal perfusion (SPIP). To investigate the robustness of in vivo predictions of human intestinal permeability, a set of four model compounds was systematically investigated in both these models, using tissue specimens and segments from the jejunum, ileum, and colon of rats from the same genetic strain...
September 18, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28894363/ketoprofen-loaded-polymer-carriers-in-bigel-formulation-an-approach-to-enhancing-drug-photostability-in-topical-application-forms
#3
Velichka Andonova, Petya Peneva, George S Georgiev, Vencislava T Toncheva, Elisaveta Apostolova, Zhivko Peychev, Stela Dimitrova, Mariana Katsarova, Nadia Petrova, Margarita Kassarova
The purpose of the study was to investigate the stability and biopharmaceutical characteristics of ketoprofen, loaded in polymeric carriers, which were included into a bigel in a semisolid dosage form. The polymer carriers with in situ-included ketoprofen were obtained by emulsifier-free emulsion polymerization of the monomers in aqueous medium or a solution of the polymers used. The morphological characteristics of the carriers, the in vitro release and the photochemical stability of ketoprofen were evaluated...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28893584/levetiracetam-nonsteroidal-anti-inflammatory-drug-binary-systems-a-contribution-to-the-development-of-new-solid-dosage-forms
#4
Sara M T Machado, Ricardo A E Castro, Teresa M R Maria, João Canotilho, M Ermelinda S Eusébio
A study has been carried out of binary solid systems made up of the antiepileptic drug levetiracetam, LEV, and a nonsteroidal anti-inflammatory drug, NSAID, capable of managing the inflammation that accompanies epileptic activity. One aim of this research was to identify eutectic mixtures and co-crystals, which are able to impact positively on their biopharmaceutical properties. The NSAIDs studied are (S)- and (R,S)-ibuprofen, (S)- and (R,S)-naproxen, (R,S)-ketoprofen and (R,S)-flurbiprofen, all class II in the Biopharmaceutical Classification System...
September 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28890266/in-line-coupling-of-supported-liquid-membrane-extraction-to-capillary-electrophoresis-for-simultaneous-analysis-of-basic-and-acidic-drugs-in-urine
#5
Pavla Pantůčková, Pavel Kubáň
Simultaneous extraction of basic and acidic drugs across thin supported liquid membrane (SLM) and direct injection of the extracted drugs from SLM surface into capillary electrophoresis (CE) were demonstrated. A microextraction device compatible with injection system of commercial CE instrument was filled with 20μL of sample and 10μL of acceptor solution, which were interspaced by the SLM impregnated with 5μL of organic solvent. Extractions of three basic drugs (nortriptyline, haloperidol and loperamide) and two acidic drugs (ketoprofen and naproxen) were achieved at optimized conditions including 1-ethyl-2-nitrobenzene as SLM solvent, natural pH of sample solution, 2...
September 7, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28887998/novel-poly-%C3%AE%C2%B5-caprolactone-gelatin-wound-dressings-prepared-by-emulsion-electrospinning-with-controlled-release-capacity-of-ketoprofen-anti-inflammatory-drug
#6
A O Basar, S Castro, S Torres-Giner, J M Lagaron, H Turkoglu Sasmazel
In the present study, a single and binary Ketoprofen-loaded mats of ultrathin fibers were developed by electrospinning and their physical properties and drug release capacity was analyzed. The single mat was prepared by solution electrospinning of poly(ε-caprolactone) (PCL) with Ketoprofen at a weight ratio of 5wt%. This Ketoprofen-containing PCL solution was also used as the oil phase in a 7:3 (wt/wt) emulsion with gelatin dissolved in acidified water. The resultant stable oil-in-water (O/W) emulsion of PCL-in-gelatin, also containing Ketoprofen at 5wt%, was electrospun to produce the binary mat...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28883779/users-knowledge-about-adverse-effects-of-non-steroidal-anti-inflammatory-drugs-in-tirana-albania
#7
Dajana Roshi, Ervin Toçi, Genc Burazeri, Peter Schröder-Bäck, Ledjan Malaj, Helmut Brand
AIM: To assess the level of knowledge of the adult users of non-steroidal anti-inflammatory drugs (NSAIDs) regarding their side effects and the socio-demographic factors associated with the use of these drugs in the adult population of Albania. METHODS: This was a cross-sectional study including a representative sample of 199 individuals aged ≥18 years (77% women; overall mean age: 30.3±10.0 years; overall response rate: 90%) who were users of NSAIDs recruited in ten different pharmacies in Tirana municipality during April-May 2015...
June 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28878143/cobra-venom-factor-and-ketoprofen-abolish-the-antitumor-effect-of-nerve-growth-factor-from-cobra-venom
#8
Alexey V Osipov, Tatiana I Terpinskaya, Tatiana E Kuznetsova, Elena L Ryzhkovskaya, Vladimir S Lukashevich, Julia A Rudnichenko, Vladimir S Ulashchyk, Vladislav G Starkov, Yuri N Utkin
We showed recently that nerve growth factor (NGF) from cobra venom inhibited the growth of Ehrlich ascites carcinoma (EAC) inoculated subcutaneously in mice. Here, we studied the influence of anti-complementary cobra venom factor (CVF) and the non-steroidal anti-inflammatory drug ketoprofen on the antitumor NGF effect, as well as on NGF-induced changes in EAC histological patterns, the activity of lactate and succinate dehydrogenases in tumor cells and the serum level of some cytokines. NGF, CVF and ketoprofen reduced the tumor volume by approximately 72%, 68% and 30%, respectively...
September 6, 2017: Toxins
https://www.readbyqxmd.com/read/28866407/removal-of-emerging-organic-contaminants-in-a-poplar-vegetation-filter
#9
V Martínez-Hernández, M Leal, R Meffe, A de Miguel, C Alonso-Alonso, I de Bustamante, J Lillo, I Martín, J J Salas
Vegetation filters (VFs), a type of land application system, are a robust technology based on natural treatment mechanisms for the removal of wastewater contaminants. Their capacity to attenuate emerging organic contaminants (EOCs) has not yet been evaluated. The present study reports the results of a 2-year EOC monitoring carried out using a poplar VF receiving wastewater primarily treated by an Imhoff tank. The compounds selected included analgesics, a β-adrenergic blocker, stimulants, an anticonvulsant, an anti-depressant, an anti-inflammatory, an antibiotic and analgesic and stimulant metabolites...
August 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28856500/methamphetamine-induced-brain-injury-and-alcohol-drinking
#10
Amanda L Blaker, Bryan K Yamamoto
A majority of methamphetamine (Meth) abusers also abuse alcohol but the neurochemical consequences of this co-abuse are unknown. Individually, alcohol and Meth cause inflammation and long-term alterations in dopamine and serotonin signaling within the brain. Experiments were conducted to identify if serial exposure to alcohol and Meth has neurochemical consequences that are greater than after either drug alone. Male Sprague Dawley rats voluntarily drank 10% ethanol (EtOH) every other day for 4 weeks and were then exposed to a binge injection regimen of Meth (10 mg/kg injected every 2 h, for a total of 4 injections)...
August 30, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28844174/novel-reverse-electrodialysis-driven-iontophoretic-system-for-topical-and-transdermal-delivery-of-poorly-permeable-therapeutic-agents
#11
Ki-Taek Kim, Joon Lee, Min-Hwan Kim, Ju-Hwan Park, Jae-Young Lee, Joo-Hyun Song, Minwoong Jung, Myoung-Hoon Jang, Hyun-Jong Cho, In-Soo Yoon, Dae-Duk Kim
Topical and transdermal drug delivery has great potential in non-invasive and non-oral administration of poorly bioavailable therapeutic agents. However, due to the barrier function of the stratum corneum, the drugs that can be clinically feasible candidates for topical and transdermal delivery have been limited to small-sized lipophilic molecules. Previously, we fabricated a novel iontophoretic system using reverse electrodialysis (RED) technology (RED system). However, no study has demonstrated its utility in topical and/or transdermal delivery of poorly permeable therapeutic agents...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28830784/electrospun-tri-layered-zein-pvp-go-zein-nanofiber-mats-for-providing-biphasic-drug-release-profiles
#12
Hoik Lee, Gang Xu, Davood Kharaghani, Masayoshi Nishino, Kyung Hun Song, Jung Soon Lee, Ick Soo Kim
Simple sequential electrospinning was utilized to create a functional tri-layered nanofiber mesh that achieves time-regulated biphasic drug release behavior. A tri-layered nanofiber mesh -composed of zein and poly(vinylpyrrolidone) (PVP) as the top/bottom and middle layers, respectively - was constructed through sequential electrospinning with ketoprofen (KET) as the model drug. PVP was blended with graphene oxide (GO) to improve the drug release functionality of PVP nanofiber as well as its mechanical properties...
August 19, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28827702/ibuprofen-and-ketoprofen-potentiate-uva-induced-cell-death-by-a-photosensitization-process
#13
Emmanuelle Bignon, Marco Marazzi, Vanessa Besancenot, Hugo Gattuso, Guillaume Drouot, Christophe Morell, Leif A Eriksson, Stephanie Grandemange, Elise Dumont, Antonio Monari
Nonsteroidal 2-arylproprionic acids are widely used, over-the-counter, anti-inflammatory drugs. Photosensitivity is a commonly overlooked adverse effect of these drugs. Based on the combined use of cell viability assays and molecular modeling, we prove and rationalize the photochemical pathways triggering photosensitization for two drugs, ibuprofen and ketoprofen. As its parent compound benzophenone, ketoprofen produces singlet oxygen, upon triplet manifold population. However, ibuprofen and ketoprofen photodissociate and hence may generate two highly reactive radicals...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28812182/rheological-characterization-of-molten-polymer-drug-dispersions-as-a-predictive-tool-for-pharmaceutical-hot-melt-extrusion-processability
#14
Jeroen Van Renterghem, Chris Vervaet, Thomas De Beer
PURPOSE: The aim of this study was to investigate (i) the influence of drug solid-state (crystalline or dissolved in the polymer matrix) on the melt viscosity and (ii) the influence of the drug concentration, temperature and shear rate on polymer crystallization using rheological tests. METHODS: Poly (ethylene oxide) (PEO) (100.000 g/mol) and physical mixtures (PM) containing 10-20-30-40% (w/w) ketoprofen or 10% (w/w) theophylline in PEO were rheologically characterized...
August 15, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28811107/local-efficacy-of-periarticular-morphine-injection-in-simultaneous-bilateral-total-knee-arthroplasty-a-prospective-randomized-double-blind-trial
#15
Kentaro Iwakiri, Yoichi Ohta, Akio Kobayashi, Yukihide Minoda, Hiroaki Nakamura
BACKGROUND: The periarticular multimodal cocktail injection including morphine is currently commonly used to reduce postoperative pain following total knee arthroplasty (TKA). Despite its analgesic effect, it frequently causes nausea, which is an adverse effect of opioids. It is inconclusive whether the intraoperative injection of periarticular morphine is effective peripherally. The aim of this study was to assess whether the addition of morphine to unilateral periarticular knee injections improves postoperative pain, range of motion, and swelling in patients undergoing simultaneous bilateral TKA...
July 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28808332/magnetic-microsphere-based-portable-solid-phase-extraction-device-for-on-site-pre-concentration-of-organics-from-large-volume-water-samples
#16
Zhijian Yao, Qingqing Zhao, Yan Ma, Wei Wang, Qing Zhou, Aimin Li
In this research a new magnetic material called M88 was fully synthetized and characterized for the extraction of pharmaceutical and personal care products in water samples. In addition, a portable prototype of magnetic solidphase extraction (MSPE) device was developed for the onsite preconcentration. The MSPE coupling with high performance liquid chromatography-Diode array detector (HPLC-DAD) method was developed and validated for simultaneous analysis of 11 PPCPs (mefenamic acid, chloroamphenicol, ketoprofen, clofibric acid, indometacin, acetylsalicylic acid, bisphenol A, phenylphenol, gemfibrozil, triclosan, and ibuprofen) in environmental water samples...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28802525/layered-double-hydroxides-based-ion-exchange-extraction-for-high-sensitive-analysis-of-non-steroidal-anti-inflammatory-drugs
#17
Wei Zhou, Chenlu Wang, Yikun Liu, Wenpeng Zhang, Zilin Chen
Layered double hydroxides (LDHs) are ideal sorbents for solid phase extraction (SPE) because of the excellent ion exchange capacity and high specific surface area. However, difficult elution of the analytes from the LDHs is a problem due to the strong ionic interaction between anions and LDHs. High concentrated NaOH solution is employed to elute the sample, but it not suitable for analyzing by HPLC. To solve this problem, a simple acid-base neutralization method was proposed after elution, and then the neutral samples were directly injected to HPLC for analysis...
July 15, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28802202/a-thermosensitive-drug-delivery-system-prepared-by-blend-electrospinning
#18
Heyu Li, Kailin Liu, Qingqing Sang, Gareth R Williams, Junzi Wu, Haijun Wang, Jianrong Wu, Li-Min Zhu
In this study, the thermosensitive polymer poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) was synthesized and electrospun into fibers by blending with ethyl cellulose (EC). Fibers were additionally prepared loaded with ketoprofen (KET) as a model drug. Smooth cylindrical fibers could generally be observed by electron microscopy, although there were some beads and fused fibers visible in the KET-loaded materials. KET was found to be amorphously distributed in the fibers on the basis of X-ray diffraction data...
July 25, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28796322/ecotoxicological-properties-of-ketoprofen-and-the-s-enantiomer-dexketoprofen-bioassays-in-freshwater-model-species-and-biomarkers-in-fish-plhc-1-cell-line
#19
Elvira Mennillo, Augustine Arukwe, Gianfranca Monni, Valentina Meucci, Luigi Intorre, Carlo Pretti
The increased use of non-steroidal anti-inflammatory drugs (NSAIDs) has resulted in their ubiquitous presence in the environment. The toxicological properties of these two widely prescribed NSAIDs, namely - racemic ketoprofen (rac-KP) and its enantiomer S(+)-ketoprofen (dexketoprofen, DKP) were evaluated. Firstly, by acute and chronic toxicity tests using three representative model organisms (Vibrio fischeri, Pseudokirchneriella subcapitata and Ceriodaphnia dubia). Secondly, by evaluating the responses of biotransformation systems and multidrug resistance associated proteins (MRP1/MRP2) using the PLHC-1 fish hepatic cell-line...
August 10, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28770976/non-steroidal-anti-inflammatory-drugs-nsaids-for-chronic-non-cancer-pain-in-children-and-adolescents
#20
REVIEW
Christopher Eccleston, Tess E Cooper, Emma Fisher, Brian Anderson, Nick Mr Wilkinson
BACKGROUND: Pain is a common feature of childhood and adolescence around the world, and for many young people, that pain is chronic. The World Health Organization guidelines for pharmacological treatments for children's persisting pain acknowledge that pain in children is a major public health concern of high significance in most parts of the world. While in the past pain was largely dismissed and was frequently left untreated, views on children's pain have changed over time, and relief of pain is now seen as important...
August 2, 2017: Cochrane Database of Systematic Reviews
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