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high doses ibuprofen

Hyun-Jung Moon, Hak-Bong Kim, Su-Hoon Lee, So-Eun Jeun, Chi-Dug Kang, Sun-Hee Kim
NSAIDs (non-steroidal anti-inflammatory drugs) have potential use as anticancer agents, either alone or in combination with other cancer therapies. We found that NSAIDs including celecoxib (CCB) and ibuprofen (IBU) significantly potentiated the cytotoxicity of Hsp90 inhibitors in human multidrug-resistant (MDR) cells expressing high levels of mutant p53 (mutp53) protein and P-glycoprotein (P-gp), and reversed Hsp90 inhibitor resistance caused by activation of heat shock factor 1 (HSF1) and by up-regulation of heat shock proteins (Hsps) and P-gp...
February 16, 2018: Oncotarget
Apensu Dey, Victoria Sandre, Daniel Gerrard Marangoni, Soumen Ghosh
Ibuprofen (IBF), 2-(4-isobutylphenyl) propionic acid, is a surface active, common non-steroidal anti-inflammatory drug (NSAID); IBF possesses a high critical micelle concentration (cmc) when compared to conventional surfactants. The interactions of this common NSAID with an anionic surfactant, sodium octyl sulfosuccinate (AOT) were studied bytensiometric, fluorimetric, and calorimetric measurementsin order to investigate this system as a possible model drug delivery system for an NSAID like IBF, particularly in a high dose regime for IBF...
March 7, 2018: Journal of Physical Chemistry. B
Yongli Shi, Jintao Xue, Shuxin Xu, Yinghua You, Xi Qing Yan, Xiaotong Zhao, Jingjing Cao
In this study, the copolymer of methoxy poly(ethylene glycol) methacrylate-co-poly(methylacrylic acid) [poly(mPEGMA-co-MAA)] was synthesized via radical polymerization. Based on this copolymer, novel chitosan-modified poly(mPEGMA-co-MAA) nanoparticles (CS/NPs) were developed to improve the bio-availability of ibuprofen (IBU). Fourier transform infrared spectroscopy (FTIR) and1 H nuclear magnetic resonance (1 H NMR) spectra were used to confirm the synthesis of the copolymers. The morphology of CS/NPs was investigated with transmission electron microscopy (TEM)...
February 21, 2018: Colloids and Surfaces. B, Biointerfaces
João Zugaib, Ricardo M Leão
The Dorsal Cochlear Nucleus (DCN) is a region which has been traditionally linked to the genesis of tinnitus, the constant perception of a phantom sound. Sodium salicylate, a COX-2 inhibitor, can induce tinnitus in high doses. Hyperactivity of DCN neurons is observed in several animal models of tinnitus, including salicylate-induced tinnitus. The DCN presents several forms of endocannabinoid (EC) dependent synaptic plasticity and COX-2 can also participate in the oxidative degradation of ECs. We recently demonstrated that short-term perfusion of sodium salicylate and other inhibitors of both oxidative and hydrolytic EC degradation did not affect depolarization-induced suppression of excitation (DSE), a form of EC- dependent short-term synaptic plasticity...
February 17, 2018: Neuroscience
A Schröder, F A Campbell, W A Farhat, J L Pippi Salle, D J Bägli, A J Lorenzo, M A Koyle
INTRODUCTION: There are limited data about pain patterns, analgesic requirements and factors predicting opioid requirements of children undergoing outpatient urologic surgery. This prospective study aimed to assess recovery profiles and pain medication requirements. METHODS: Patients between 6 months and 12 years of age were recruited prospectively between December 2013 and June 2014. Demographic and operative characteristics were collected. Following discharge home, the parents were asked to administer both acetaminophen and ibuprofen Q6H at a weight-adjusted dose, based on a schedule, until the end of postoperative day 2, and to administer the medication as required on postoperative day 3...
January 31, 2018: Journal of Pediatric Urology
Michael W Konstan, Donald R VanDevanter, Gregory S Sawicki, David J Pasta, Aimee J Foreman, Evgueni A Neiman, Wayne J Morgan
RATIONALE: Cystic fibrosis (CF) deaths result primarily from lung function loss, so chronic respiratory therapies intended to preserve lung function are cornerstones of CF care. Although treatment-associated reduction in rate of lung function loss should ultimately improve CF survival, no such relationship has been described for any chronic CF therapy. In part, this is because the ages of most rapid lung function decline -- early adolescence -- precede the median age of CF deaths by more than a decade...
January 9, 2018: Annals of the American Thoracic Society
Yiping Deng, Fengjian Yang, Xiuhua Zhao, Lu Wang, Weiwei Wu, Chang Zu, Mingfang Wu
Ibuprofen (IBU) is an effective analgesic, non-steroidal anti-inflammatory drug. Unfortunately, oral IBU can cause adverse gastrointestinal drug reactions, such as bleeding and ulcerations, and increases the risk for stomach or intestinal perforations. In this study, IBU nanoparticles (IBU-NPs) were prepared through emulsion solvent evaporation and freeze-drying to improve their solubility. IBU nanoemulsion and nanosuspension were optimized through a single-factor experiment. IBU-NPs with a mean particle size of 216...
December 27, 2017: European Journal of Pharmaceutical Sciences
Alyssa F Collier, Jessica Gumerson, Jace W Jones, Maureen A Kane, Kimmo Lehtimaki, Jukka Puolivali, Sankeerth Manne, Andrea O'Neill, Hillarie P Windish, Toni Ahtoniemi, Bradley A Williams, Douglas E Albrecht, Robert J Bloch
Ibuprofen, a non-steroidal anti-inflammatory drug, and nitric oxide (NO) donors have been reported to reduce the severity of muscular dystrophies in mice associated with the absence of dystrophin or α-sarcoglycan, but their effects on mice that are dystrophic due to the absence of dysferlin have not been examined. We have tested ibuprofen, as well as isosorbide dinitrate (ISDN), an NO donor, to learn if used alone or together they protect dysferlin-null muscle in A/J mice from large strain injury (LSI) induced by a series of high strain lengthening contractions...
December 28, 2017: Journal of Pharmacology and Experimental Therapeutics
Hayley B Schultz, Nicky Thomas, Shasha Rao, Clive A Prestidge
The method of supersaturation for achieving high drug loads in lipid-based formulations is under exploited and relatively unexplored, especially in the case of solid-state lipid-based formulations. Silica-lipid hybrids are solid-state lipid-based formulations designed for improving the oral delivery of poorly water-soluble drugs. However, their application to compounds of low potency and requiring large doses is limited by their low drug loading capacity. Here, an innovative technique to fabricate supersaturated silica-lipid hybrid formulations (super-SLH) has been established and the relationship between drug load and performance investigated...
December 22, 2017: European Journal of Pharmaceutics and Biopharmaceutics
Aseef Yehiyan, Sowrav Barman, Haren Varia, Stephen Pettit
No abstract text is available yet for this article.
December 22, 2017: BMJ Case Reports
Carl J Pepine, Paul A Gurbel
Increasing numbers of patients with arthritis use nonsteroidal anti-inflammatory drugs (NSAIDs), some for long periods. The relative cardiovascular safety of NSAID use is of considerable concern, particularly among patients with or at risk of cardiovascular disease. Until recently, the evidence base was limited to older trials with small sample sizes. The large-scale Prospective Randomized Evaluation of Celecoxib Integrated Safety vs Ibuprofen or Naproxen (PRECISION) trial and a recent Bayesian meta-analysis of individual patient data in nearly a half-million patients were undertaken to address some of the existing gaps in knowledge relative to the cardiovascular safety of NSAID use...
December 16, 2017: Clinical Cardiology
Stefanie Geith, Bertold Renner, Christian Rabe, Jochen Stenzel, Florian Eyer
BACKGROUND: Inquiries relating to ibuprofen overdose have more than tripled in the last ten years in our poison control center. Although the vast majority of cases have a benign clinical course, there are few severe or even fatal cases present with refractory circulatory failure. CASE PRESENTATION: We describe a case of a 48 year-old male with suicidal mono-ingestion of approximately 72 g ibuprofen. Despite an initial rapid spontaneous drop in the total ibuprofen plasma concentration (IPC) from 550 to 275 mcg/mL within the first 5 h after admission, the patient developed a circulatory failure, refractory to aggressive fluid resuscitation and high doses of vasopressors...
December 12, 2017: BMC Pharmacology & Toxicology
J Wallenborn, M Fischer
Toxic epidermal necrolysis (TEN) is a serious adverse drug reaction with high lethality, which usually requires intensive-medical care. A 44-year-old man developed generalized exanthema with increasing exfoliation and mucosal involvement after taking allopurinol, ibuprofen, and etoricoxib. The clinical diagnosis of TEN was histologically confirmed. Prednisolone therapy with 3 mg/kg body weight (BW) was not able to prevent further progress to finally 80% of the body surface, and infliximab 5 mg/kg BW was given as a single dose...
2017: Case Reports in Critical Care
Zhiqiang Lu, Yuanfu Lu, Xue Wang, Fangyu Wang, Youcai Zhang
Nonsteroidal anti-inflammatory drugs (NSAIDs)-induced small intestinal injury (enteropathy) occurs in about two-thirds of regular NSAID users. To date, there is no proven-effective treatment for NSAID enteropathy, and its underlying mechanism remains obscure. The present study showed that glucocorticoids are an important determinant of NSAID enteropathy. High dose dexamethasone (DEX, 75 mg/kg) markedly exacerbated the acute toxicity of ibuprofen (IBU, 200 mg/kg) in the small intestine of mice, which was not due to the pregnane-X-receptor pathway...
December 8, 2017: Archives of Toxicology
Huijiao Wang, Juhong Zhan, Weikun Yao, Bin Wang, Shubo Deng, Jun Huang, Gang Yu, Yujue Wang
Pharmaceutical abatement in a groundwater (GW), surface water (SW), and secondary effluent (SE) by conventional ozonation, the conventional peroxone (O3 /H2 O2 ), and the electro-peroxone (E-peroxone) processes was compared in batch tests. SE had significantly more fast-reacting dissolved organic matter (DOM) moieties than GW and SW. Therefore, O3 decomposed much faster in SE than in GW and SW. At specific ozone doses of 0.5-1.5 mg O3 /mg dissolved organic carbon (DOC), the application of O3 /H2 O2 and E-peroxone process (by adding external H2 O2 stocks or in-situ generating H2 O2 from cathodic O2 reduction during ozonation) similarly enhanced the OH yield from O3 decomposition by ∼5-12% and 5-7% in GW and SW, respectively, compared to conventional ozonation...
March 1, 2018: Water Research
Aoife B Monk, Jayne E Harrison, Helen V Worthington, Annabel Teague
BACKGROUND: Pain is a common side effect of orthodontic treatment. It increases in proportion to the amount of force applied to the teeth, and the type of orthodontic appliance used can affect the intensity of the pain. Pain during orthodontic treatment has been shown to be the most common reason for people wanting to discontinue treatment, and has been ranked as the worst aspect of treatment. Although pharmacological methods of pain relief have been investigated, there remains some uncertainty among orthodontists about which painkillers are most suitable and whether pre-emptive analgesia is beneficial...
November 28, 2017: Cochrane Database of Systematic Reviews
Peter Loudon, Pieter Siebenga, Donal Gorman, Katrina Gore, Pinky Dua, Guido van Amerongen, Justin L Hay, Geert Jan Groeneveld, Richard P Butt
AIM: Inhibitors of nerve growth factor (NGF) reduce pain in several chronic pain indications. NGF signals through tyrosine kinase receptors of the tropomyosin-related kinase (Trk) family and the unrelated p75 receptor. PF-06273340 is a small molecule inhibitor of Trks A, B and C that reduces pain in nonclinical models, and the present study aimed to investigate the pharmacodynamics of this first-in-class molecule in humans. METHODS: A randomized, double-blind, single-dose, placebo- and active-controlled five-period crossover study was conducted in healthy human subjects (NCT02260947)...
February 2018: British Journal of Clinical Pharmacology
Venkata K Yellepeddi, Jayashree Radhakrishnan, Rajan Radhakrishnan
BACKGROUND: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) involves inflammation of the prostate and affects the quality of life of men of all ages. It is well reported in clinical studies that the treatment for CP/CPPS using nonsteroidal anti-inflammatory drugs (NSAIDs) produced favorable outcomes. However, currently, there are no guidelines on choice of the NSAIDs for the treatment of CP/CPPS. Therefore, in the current research study, we evaluated the prostate tissue penetration of four NSAIDs in rats to provide guidance on choice of NSAIDs for the treatment of CP/CPPS...
February 2018: Prostate
Hazem Elgalaly, Ahmed Eliwa, Mohamed Seleem, Emad Salem, Mohammed Omran, Haitham Shello, Khalid Abdelwahab, Salem Khalil, Mostafa Kamel
OBJECTIVES: To evaluate the possible role of silodosin (a highly selective α1A-adrenoceptor antagonist) in facilitating the passage of distal ureteric stones (DUS) in children, as the role of α-blockers as medical expulsive therapy is well known in adults. PATIENTS AND METHODS: In all, 40 paediatric patients (27 boys and 13 girls) diagnosed with unilateral, single, radiopaque DUS of <10 mm were included in the study. Their mean (SD, range) age was 8.1 (2.7, 5-17) years...
September 2017: Arab Journal of Urology
Victoria S Byrd, Attila S Nemeth
A 57-year-old man presented with abdominal pain, hematemesis, and melena. He reported taking high-dose ibuprofen for back pain and drinking several 24-ounce beers daily. Examination was remarkable for icteric sclera, poor dentition, tachycardia, and crescendo-decrescendo murmur at right upper sternal border, radiating to the carotids. Labs revealed leukocytosis, anemia, thrombocytopenia, and elevated liver function tests and INR. Endoscopy demonstrated antral ulcers, duodenitis, and esophagitis. Blood cultures were obtained and broad-spectrum antibiotics started; cultures later grew Streptococcus mitis, and antibiotic coverage was narrowed...
2017: Case Reports in Infectious Diseases
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