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https://www.readbyqxmd.com/read/28436310/synthesis-and-characterization-of-poly-n-vinylcaprolactam-based-spray-dried-microparticles-exhibiting-temperature-and-ph-sensitive-properties-for-controlled-release-of-ketoprofen
#1
Simone F Medeiros, Milene V Lopes, Bartira Rossi-Bergmann, Maria Inês Ré, Amilton M Santos
Poly(N-vinylcaprolactam) (PNVCL) and poly(N-vinylcaprolactam-co-acrylic acid) (poly(NVCL-co-AA)) were synthesized by solution free radical polymerization and displayed thermo-responsive behavior, with lower critical solution temperatures (LCSTs) of 35°C and 39°C, respectively. The incorporation of AA unities made the poly(NVCL-co-AA) sensitive to both pH- and temperature. They were exploited in this work in preparing microparticles loaded with ketoprofen via spray-drying to modulate the drug release rate by changing pH or temperature...
April 22, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28433767/temporal-dynamics-of-human-excreted-pollutants-in-wastewater-treatment-plant-influents-toward-a-better-knowledge-of-mass-load-fluctuations
#2
Thomas Thiebault, Laëtitia Fougère, Emilie Destandau, Maxime Réty, Jérémy Jacob
The occurrence of 25 drug target residues (illicit drugs or pharmaceutically active compounds) was investigated during 85 consecutive days in the influents of a wastewater treatment plant in the Region Centre-Val de Loire, France. This long tracking period allowed a better understanding of the patterns affecting the occurrence of this type of contaminants. Among them, 2 were never detected (i.e. heroin and amphetamine). Concerning illicit drugs two patterns were found. Cocaine and ecstasy median loads varied considerably between weekdays and weekend days (i...
April 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28397455/-application-of-synthetic-and-semisynthetic-polymers-kollidon-k30-and-hydroxypropylmethylcellulose-as-carriers-of-ketoprofen-in-solid-oral-prolonged-release-dosage-forms
#3
Wojciech Linka, Mateusz Kot, Michał Kołodziejczyk
BACKGROUND: One of the most important challenges of the modern technology of solid oral dosage forms is to increase the effectiveness of the drug, reduce side effects and improve the comfort of use. One way to obtain such effects are prolonged release dosage forms. OBJECTIVES: The aim of the study was to investigate the suitability of polymers (synthetic - Kollidon K30 and semisynthetic - hydroxypropyl methylcellulose), and calcium hydrogen phosphate dihydrate - as an inorganic insoluble filler - in the construction of the matrices of the solid oral dosage forms containing non-steroidal anti-inflammatory drugs (NSAIDs)...
July 2016: Polimery W Medycynie
https://www.readbyqxmd.com/read/28392691/ketoprofen-loaded-eudragit-electrospun-nanofibers-for-the-treatment-of-oral-mucositis
#4
Rana Ihab Reda, Ming Ming Wen, Amal Hassan El-Kamel
PURPOSE: The purpose of this study was to formulate ketoprofen (KET)-loaded Eudragit L and Eudragit S nanofibers (NFs) by the electrospinning technique for buccal administration to treat oral mucositis as a safe alternative to orally administered KET, which causes gastrointestinal tract (GIT) side effects. MATERIALS AND METHODS: NFs were prepared by electrospinning using Eudragit L and Eudragit S. Several variables were evaluated to optimize NF formulation, such as polymer types and concentrations, applied voltage, flow rate and drug concentrations...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28390750/implementing-ecopharmacovigilance-epv-from-a-pharmacy-perspective-a-focus-on-non-steroidal-anti-inflammatory-drugs
#5
REVIEW
Jun Wang, Bingshu He, Dan Yan, Xiamin Hu
Environmental experts have made great efforts to control pharmaceutical pollution. However, the control of emerged environmental problems caused by medicines should draw more attention of pharmacy and pharmacovigilance researchers. Ecopharmacovigilance (EPV) as a kind of pharmacovigilance for the environment is recognized worldwide as crucial to minimize the environmental risk of pharmaceutical pollutants. But continuing to treat the pollution of pharmaceuticals as a group of substances instead of targeting individual pharmaceuticals on a prioritized basis will lead to a significant waste of resources...
April 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28384602/removal-characteristics-of-pharmaceuticals-and-personal-care-products-comparison-between-membrane-bioreactor-and-various-biological-treatment-processes
#6
Junwon Park, Naoyuki Yamashita, Chulhwi Park, Tatsumi Shimono, Daniel M Takeuchi, Hiroaki Tanaka
We investigated the concentrations of 57 target compounds in the different treatment units of various biological treatment processes in South Korea, including modified biological nutrient removal (BNR), anaerobic-anoxic-aerobic (A2O), and membrane bioreactor (MBR) systems, to elucidate the occurrence and removal fates of PPCPs in WWTPs. Biological treatment processes appeared to be most effective in eliminating most PPCPs, whereas some PPCPs were additionally removed by post-treatment. With the exception of the MBR process, the A2O system was effective for PPCPs removal...
July 2017: Chemosphere
https://www.readbyqxmd.com/read/28381310/biochemical-histopathologic-physiologic-and-behavioral-effects-of-nonsteroidal-antiinflammatory-drugs-in-rainbow-trout-oncorhynchus-mykiss
#7
Amy L Rizzo, Gregory A Wooster, Luce E Guanzini, Christine M Peterson, Karryssas Fenderson, Hollis N Erb, Paul R Bowser, Mary E Martin
Because the number of fish being used in research is increasing rapidly, evaluating the analgesic and pathologic effects of NSAID in fish is essential. To determine the biochemical, histopathologic, physiologic and behavioral effects of 3 NSAID, 48 rainbow trout underwent anesthesia with tricaine methanesulfonate and exploratory celiotomy and were randomly assigned to receive flunixin (0.5 mg/kg IM), ketorolac (0.5 mg/kg IM), ketoprofen (2 mg/kg IM), or saline. Clinical pathologic variables were assessed 1 wk before surgery and 48 h after surgery...
March 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28374340/ketoprofen-microemulsion-for-improved-skin-delivery-and-in-vivo-anti-inflammatory-effect
#8
Ana Luisa Murbach Aliberti, Alemer Cortat de Queiroz, Fabíola Silva Garcia Praça, Josimar O Eloy, Maria Vitória Lopes Badra Bentley, Wanessa Silva Garcia Medina
We have designed a microemulsion (ME) containing Ketoprofen (KET) for anti-inflammatory effect evaluated using the rat paw edema model. The ME was prepared by adding propylene glycol (PG) loaded with 1% KET/water (3:1, w/w), to a mixture of sorbitan monooleate and polysorbate 80 (47.0%) at 3:1 (w/w) and canola oil (38.0%). The physicochemical characterization of KET-loaded ME involved particle size and zeta potential determination, entrapment efficiency, calorimetric analysis, and in vitro drug release. The in vivo anti-inflammatory study employed male Wistar rats...
April 3, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28363074/propofol-as-an-immersion-anesthetic-and-in-a-minimum-anesthetic-concentration-mac-reduction-model-in-goldfish-carassius-auratus
#9
Julie A Balko, Sarah K Wilson, Gregory A Lewbart, Brian R Gaines, Lysa P Posner
Propofol is a novel immersion anesthetic in goldfish ( Carassius auratus ). Objectives were to characterize propofol as an anesthetic and assess its suitability in a minimum anesthetic concentration (MAC) reduction model. Using a crossover design, eight goldfish were submerged in 1, 5, or 10 mg/L propofol. Data included induction time, recovery time, heart rate, opercular rate, and response to supramaximal stimulation. Baseline MAC (Dixon's up-and-down method) was determined, and 15 fish were anesthetized with propofol on 4 consecutive days with MAC determination on the fifth day, weekly, for 1 mo...
March 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28347572/the-effect-of-nefopam-on-lactation-after-caesarean-section-a-single-blind-randomised-trial
#10
N E Baka, F Vial, G Iohom, P Guerci, C Hubert, M Rouabah, H Bouaziz
BACKGROUND: Nefopam is a centrally acting analgesic which has a theoretical risk of stopping lactation due to its anticholinergic and dopaminergic effects. The aim of this study was to evaluate the effect of nefopam on lactation and to investigate potential adverse effects on newborns. METHODS: Seventy-two women, scheduled to undergo a caesarean delivery under spinal anaesthesia and wanting to breastfeed, were randomised to one of two groups: nefopam (20mg, six hourly) or paracetamol (1g, six hourly)...
February 20, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28346213/development-and-application-of-a-high-performance-liquid-chromatography-stability-indicating-assay-for-beyond-use-date-determination-of-compounded-topical-gels-containing-multiple-active-drugs
#11
Gregory Gorman, Simara Sokom, Lori Coward, John J Arnold
Topical gels compounded by pharmacists are important clinical tools for the management of pain. Nevertheless, there is often a dearth of information about the chemical stability of drugs included in these topical formulations, complicating the assignment of beyond-use dating. The purpose of this study was to develop a high-performance liquid chromatography photodiode array-based stability-indicating assay that could simultaneously resolve six drugs (amitriptyline, baclofen, clonidine, gabapentin, ketoprofen, lidocaine) commonly included in topical gels for pain management and their potential degradation products...
March 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28343346/molecularly-imprinted-polymer-prepared-with-polyhedral-oligomeric-silsesquioxane-through-reversible-addition-fragmentation-chain-transfer-polymerization
#12
Shu-Ping Gao, Xue Zhang, Li-Shun Zhang, Yan-Ping Huang, Zhao-Sheng Liu
Polyhedral oligomeric silsesquioxane (POSS) was utilized to prepare imprinted polymer through reversible addition-fragmentation chain transfer polymerization (RAFT) successfully. The imprinted polymer was made with a mixture of RAFT agent, 4-vinylpyridine (4-VP), POSS monomer [PSS-(1-propylmethacrylate)-heptaisobutyl substituted, MA 0702], and ethylene glycol dimethacrylate (EDMA), with ketoprofen (KET) as template. The influence of polymerization variables, the amount of RAFT agent and POSS monomer, the ratio of KET to 4-VP, and the ratio of 4-VP to EDMA, were investigated on the retention factor and imprinting effect...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28337899/substance-p-expression-in-the-gingival-tissue-after-upper-third-molar-extraction-effect-of-ketoprofen-a-preliminary-study
#13
G M Abbate, A Mangano, P Sacerdote, G Amodeo, G Moschetti, L Levrini
The aim of this study was to evaluate substance P (SP) levels and the effect of a non-steroidal anti-inflammatory drug (NSAID), ketoprofen, on SP in the pericoronal gingival tissue after extraction of upper third molars. A sample of 20 young non-smoking systemically healthy adults of both sexes, with a healthy upper third molar to extract for orthodontic purposes, was selected. After extraction, a sample of the gingival tissue of the pericoronal region was collected with a sterile scalpel, placed into test tubes and kept frozen at -20°C until the SP determination...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28285173/peptide-dendrimer-conjugates-of-ketoprofen-synthesis-and-ex-vivo-and-in-vivo-evaluations-of-passive-diffusion-sonophoresis-and-iontophoresis-for-skin-delivery
#14
Aswathi R Hegde, Prarthana V Rewatkar, Jyothsna Manikkath, Karnaker Tupally, Harendra S Parekh, Srinivas Mutalik
The aim of this study was to evaluate skin delivery of ketoprofen when covalently tethered to mildly cationic (2(+) or 4(+)) peptide dendrimers prepared wholly by solid phase peptide synthesis. The amino acids glycine, arginine and lysine formed the dendrimer with ketoprofen tethered either to the lysine side-arm (Nε) or periphery of dendrimeric branches. Passive diffusion, sonophoresis- and iontophoresis-assisted permeation of each peptide dendrimer-drug conjugate (D1-D4) was studied across mouse skin, both in vitro and in vivo...
March 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28266283/biochemical-histopathologic-physiologic-and-behavioral-effects-of-nonsteroidal-antiinflammatory-drugs-in-rainbow-trout-oncorhynchus-mykiss
#15
Amy L Rizzo Gregory A Wooster Luce E Guanzini Christine M Peterson Karryssa S Fenderson Hollis N Erb Paul R Bowser And Mary E Martin
Because the number of fish being used in research is increasing rapidly, evaluating the analgesic and pathologic effects of NSAIDin fish is essential. To determine the biochemical, histopathologic, physiologic and behavioral effects of 3 NSAID, 48 rainbow trout underwent anesthesia with tricaine methanesulfonate and exploratory celiotomy and were randomly assigned to receive flunixin(0.5 mg/kg IM), ketorolac (0.5 mg/kg IM), ketoprofen (2 mg/kg IM), or saline. Clinical pathologic variables were assessed 1 wk before surgery and 48 h after surgery...
March 6, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28262313/high-performance-liquid-chromatography-mass-spectrometry-analysis-of-the-parent-drugs-and-their-metabolites-in-extracts-from-cress-lepidium-sativum-grown-hydroponically-in-water-containing-four-non-steroidal-anti-inflammatory-drugs
#16
Lisa Emhofer, Markus Himmelsbach, Wolfgang Buchberger, Christian W Klampfl
In this paper the metabolism of four non-steroidal anti-inflammatory drugs, (ketoprofen, mefenamic acid, naproxen, and diclofenac) by cress (Lepidium sativum) is described. Cress was cultivated hydroponically in water spiked with the parent drugs at levels ranging from 0.01mgL(-1) to 1mgL(-1). Employing an approach based on the analysis of the plant extracts by HPLC coupled either with quadrupole-time-of-flight mass spectrometry, or Orbitrap MS or triple quadrupole (QqQ) MS allowed the identification of twenty substances (sixteen metabolites and four parent drugs)...
March 31, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28259627/synthesis-of-novel-trifluoromethyl-substituted-spiro-chromeno-4-3-d-pyrimidine-5-1-cycloalkanes-and-evaluation-of-their-analgesic-effects-in-a-mouse-pain-model
#17
Helio G Bonacorso, Wilian C Rosa, Sara M Oliveira, Indiara Brusco, Evelyne S Brum, Melissa B Rodrigues, Clarissa P Frizzo, Nilo Zanatta
Herein we report the synthesis of twelve 2,5-substituted 4-(trifluoromethyl)-spirochromeno[4,3-d]pyrimidines (7-10), as well as an evaluation of their analgesic effect in a mouse pain model. The nine new chromeno[4,3-d]pyrimidines (7-9) were synthesized from the cyclocondensation reactions of three 2,2,2-trifluoro-1-(4-methoxyspiro[chromene-2,1'-cycloalkane]-3-yl)ethanones (3) containing 5-, 6- and 7-membered spirocycloalkanes, with some well-known amidine salts (4-6) [NH2CR(NH)]-in which R=Me, Ph, and NH2-at yields of 60-95%...
April 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28258852/epidemiology-of-anaphylaxis-a-retrospective-cohort-study-in-taiwan
#18
Yow-Shan Lee, Wei-Zen Sun
OBJECTIVE: Medication-induced anaphylaxis is a potentially fatal event. Little is known at present about the patterns of medication-induced anaphylaxis in Asian countries. The current study aims to examine the pattern of documented incidences of drug-associated anaphylaxis in Taiwan over a 9-year period. METHODS: Cases of medication-associated anaphylaxis documented in the Taiwan National Health Insurance claims database during a span of 9 years (from January, 1997 to December, 2005) encompassing approximately 23 million person-years were reviewed...
February 28, 2017: Acta Anaesthesiologica Taiwanica: Official Journal of the Taiwan Society of Anesthesiologists
https://www.readbyqxmd.com/read/28254731/remediation-of-a-mixture-of-analgesics-in-a-stirred-tank-photobioreactor-using-microalgal-bacterial-consortium-coupled-with-attempt-to-valorise-the-harvested-biomass
#19
Maha M Ismail, Tamer M Essam, Yasser M Ragab, Abo El-Khair B El-Sayed, Fathia E Mourad
An artificial microalgal-bacterial consortium was used to remediate a mixture of analgesics (ketoprofen, paracetamol and aspirin) in a stirred-tank photobioreactor. A hydraulic retention time (HRT) of 3days supported poor treatment because of the formation of p-aminophenol (paracetamol toxic metabolite). Increasing the HRT to 4days enhanced the bioremediation efficiency. After applying an acclimatization regime, 95% removal of the analgesics mixture, p-aminophenol and COD reduction were achieved. However, shortening the HRT again to 3days neither improved the COD reduction nor ketoprofen removal...
February 20, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28235622/an-equation-for-the-prediction-of-human-skin-permeability-of-neutral-molecules-ions-and-ionic-species
#20
Keda Zhang, Michael H Abraham, Xiangli Liu
Experimental values of permeability coefficients, as log Kp, of chemical compounds across human skin were collected by carefully screening the literature, and adjusted to 37°C for the effect of temperature. The values of log Kp for partially ionized acids and bases were separated into those for their neutral and ionic species, forming a total data set of 247 compounds and species (including 35 ionic species). The obtained log Kp values have been regressed against Abraham solute descriptors to yield a correlation equation with R(2)=0...
February 22, 2017: International Journal of Pharmaceutics
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