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Acetaminophen, paracetamol

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https://www.readbyqxmd.com/read/28299349/gabapentin-inhibits-protein-kinase-c-epsilon-translocation-in-cultured-sensory-neurons-with-additive-effects-when-coapplied-with-paracetamol-acetaminophen
#1
Vittorio Vellani, Chiara Giacomoni
Gabapentin is a well-established anticonvulsant drug which is also effective for the treatment of neuropathic pain. Although the exact mechanism leading to relief of allodynia and hyperalgesia caused by neuropathy is not known, the blocking effect of gabapentin on voltage-dependent calcium channels has been proposed to be involved. In order to further evaluate its analgesic mechanisms, we tested the efficacy of gabapentin on protein kinase C epsilon (PKCε) translocation in cultured peripheral neurons isolated from rat dorsal root ganglia (DRGs)...
2017: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28289240/pais-2-paracetamol-acetaminophen-in-stroke-2-results-of-a-randomized-double-blind-placebo-controlled-clinical-trial
#2
Inger R de Ridder, Heleen M den Hertog, H Maarten A van Gemert, A H C M L Tobien Schreuder, Annemieke Ruitenberg, E Lisette Maasland, Ritu Saxena, Jordie H van Tuijl, Ben P W Jansen, Renske M Van den Berg-Vos, Frederique Vermeij, Peter J Koudstaal, L Jaap Kappelle, Ale Algra, H Bart van der Worp, Diederik W J Dippel
BACKGROUND AND PURPOSE: Subfebrile body temperature and fever in the first days after stroke are strongly associated with unfavorable outcome. A subgroup analysis of a previous trial suggested that early treatment with paracetamol may improve functional outcome in patients with acute stroke and a body temperature of ≥36.5°C. In the present trial, we aimed to confirm this finding. METHODS: PAIS 2 (Paracetamol [Acetaminophen] in Stroke 2) was a multicenter, randomized, double-blind, placebo-controlled clinical trial...
March 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28286920/blockade-of-notch-signaling-promotes-acetaminophen-induced-liver-injury
#3
Longfeng Jiang, Michael Ke, Shi Yue, Wen Xiao, Youde Yan, Xiaozhao Deng, Qi-Long Ying, Jun Li, Bibo Ke
Liver injury after experimental acetaminophen treatment is mediated both by direct hepatocyte injury through a P450-generated toxic metabolite and indirectly by activated liver Kupffer cells and neutrophils. This study was designed to investigate the role of Notch signaling in the regulation of innate immune responses in acetaminophen (APAP)-induced liver injury. Using a mouse model of APAP-induced liver injury, wild-type (WT) and toll-like receptor 4 knockout (TLR4 KO) mice were injected intraperitoneally with APAP or PBS...
March 13, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28246450/protective-effect-of-rutin-in-comparison-to-silymarin-against-induced-hepatotoxicity-in-rats
#4
M Kasi Reddy, A Gopala Reddy, B Kala Kumar, D Madhuri, G Boobalan, M Anudeep Reddy
AIM: The aim of this study is to evaluate the hepatoprotective effect of rutin (RTN) in comparison to silymarin (SLM) against acetaminophen (APAP)-induced hepatotoxicity in rats. MATERIALS AND METHODS: Male Wistar albino rats (n=24) of 3 months age were equally divided into four groups. Group 1 served as normal control. Hepatotoxicity was induced in the remaining three groups with administration of 500 mg/kg po APAP from day 1-3. Groups 2, 3, and 4 were subsequently administered orally with distilled water, 25 mg/kg of SLM, and 20 mg/kg of RTN, respectively, for 11 days...
January 2017: Veterinary World
https://www.readbyqxmd.com/read/28194962/high-speed-quantitative-uplc-ms-analysis-of-multiple-amines-in-human-plasma-and-serum-via-precolumn-derivatization-with-6-aminoquinolyl-n-hydroxysuccinimidyl-carbamate-application-to-acetaminophen-induced-liver-failure
#5
Nicola Gray, Rabiya Zia, Adam King, Vishal C Patel, Julia Wendon, Mark J W McPhail, Muireann Coen, Robert S Plumb, Ian D Wilson, Jeremy K Nicholson
A targeted reversed-phase gradient UPLC-MS/MS assay has been developed for the quantification /monitoring of 66 amino acids and amino-containing compounds in human plasma and serum using precolumn derivatization with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AccQTag Ultra). Derivatization of the target amines required minimal sample preparation and resulted in analytes with excellent chromatographic and mass spectrometric detection properties. The resulting method, which requires only 10 μL of sample, provides the reproducible and robust separation of 66 analytes in 7...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28181214/aspirin-single-dose-for-perineal-pain-in-the-early-postpartum-period
#6
REVIEW
Sujana Molakatalla, Emily Shepherd, Rosalie M Grivell
BACKGROUND: Perineal trauma (due to spontaneous tears, surgical incision (episiotomy) or in association with operative vaginal birth) is common after vaginal birth, and is often associated with postpartum perineal pain. Birth over an intact perineum may also lead to perineal pain. There are adverse health consequences associated with perineal pain for the women and their babies in the short- and long-term, and the pain may interfere with newborn care and the establishment of breastfeeding...
February 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28169862/quantification-of-acetaminophen-and-its-metabolites-in-plasma-using-uplc-ms-doors-open-to-therapeutic-drug-monitoring-in-special-patient-populations
#7
Robert B Flint, Paola Mian, Bart van der Nagel, Nuria Slijkhuis, Birgit C P Koch
BACKGROUND: Acetaminophen (APAP, paracetamol) is the most commonly used drug for pain and fever in both the United States and Europe and is considered safe when used at registered dosages. Nevertheless, differences between specific populations lead to remarkable changes in exposure to potentially toxic metabolites. Furthermore, extended knowledge is required on metabolite formation after intoxication, to optimize antidote treatment. Therefore, the authors aimed to develop and validate a quick and easy analytical method for simultaneous quantification of APAP, APAP-glucuronide, APAP-sulfate, APAP-cysteine, APAP-glutathione, APAP-mercapturate, and protein-derived APAP-cysteine in human plasma by ultraperformance liquid chromatography-electrospray ionization-tandem mass spectrometry...
April 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28161136/efficacy-of-oral-diclofenac-with-or-without-codeine-for-pain-control-after-invasive-bilateral-third-molar-extractions
#8
P Zupelari-Goncalves, G M Weckwerth, A M Calvo, L F Simoneti, T J Dionisio, D T Brozoski, E A Torres, J R P Lauris, F A C Faria, C F Santos
Postoperative pain and inflammation after oral surgery is mostly managed using non-steroidal anti-inflammatory drugs (NSAIDs). However, opioids combined with NSAIDs may improve pain management in patients, especially after traumatic oral surgery. Few studies have compared NSAIDs with and without opioid use after oral and maxillofacial surgery. This randomized, double-blind, cross-over study compared the clinical efficacy of either diclofenac (50mg) and codeine (50mg) or diclofenac alone (50mg) for the management of postoperative pain after invasive third molar surgery...
February 1, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28113679/in-vivo-validation-of-fully-implantable-multi-panel-devices-for-remote-monitoring-of-metabolism
#9
Camilla Baj-Rossi, Andrea Cavallini, Enver G Kilinc, Francesca Stradolini, Tanja Rezzonico Jost, Michele Proietti, Giovanni De Micheli, Fabio Grassi, Catherine Dehollain, Sandro Carrara
This paper presents the in-vivo tests on a Fully Implantable Multi-Panel Devices for Remote Monitoring of endogenous and exogenous analytes. To investigate issues on biocompatibility, three different covers have been designed, realized and tested in mice for 30 days. ATP and neutrophil concentrations have been measured, at the implant site after the device was explanted, to assess the level of biocompatibility of the device. Finally, fully working prototypes of the device were implanted in mice and tested. The implanted devices were used to detect variations in the physiological concentrations of glucose and paracetamol...
September 13, 2016: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28113177/in-vivo-validation-of-fully-implantable-multi-panel-devices-for-remote-monitoring-of-metabolism
#10
Camilla Baj-Rossi, Andrea Cavallini, Enver G Kilinc, Francesca Stradolini, Tanja Rezzonico Jost, Michele Proietti, Giovanni De Micheli, Fabio Grassi, Catherine Dehollain, Sandro Carrara
This paper presents the in-vivo tests on a Fully Implantable Multi-Panel Devices for Remote Monitoring of endogenous and exogenous analytes. To investigate issues on biocompatibility, three different covers have been designed, realized and tested in mice for 30 days. ATP and neutrophil concentrations have been measured, at the implant site after the device was explanted, to assess the level of biocompatibility of the device. Finally, fully working prototypes of the device were implanted in mice and tested. The implanted devices were used to detect variations in the physiological concentrations of glucose and paracetamol...
October 2016: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28096230/haemodialysis-in-acute-paracetamol-poisoning
#11
L Serjeant, J Evans, F Sampaziotis, W G Petchey
A woman aged 23 years presented late with clinical and biochemical features of a life-threatening paracetamol (acetaminophen) overdose. Despite instigating N-acetylcysteine treatment, due to evidence of mitochondrial dysfunction together with an exceedingly high paracetamol level, the decision was made to dialyse the patient acutely to remove the parent drug. This was highly effective, and with on-going supportive care, the patient made a full recovery without the need for transplantation. This case highlights the role of extracorporeal therapy as a treatment option in selected cases of paracetamol overdose, consistent with the international guidelines...
January 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28086854/in-vitro-assessment-of-hepatoprotective-agents-against-damage-induced-by-acetaminophen-and-ccl4
#12
Liliana Torres González, Noemí Waksman Minsky, Linda Elsa Muñoz Espinosa, Ricardo Salazar Aranda, Jonathan Pérez Meseguer, Paula Cordero Pérez
BACKGROUND: In vitro bioassays are important in the evaluation of plants with possible hepatoprotective effects. The aims of this study were to evaluate the pretreatment of HepG2 cells with hepatoprotective agents against the damage induced by carbon tetrachloride (CCl4) and paracetamol (APAP). METHODS: Antioxidative activity was measured using an assay to measure 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging. The in vitro hepatotoxicity of CCl4 and APAP, and the cytotoxic and hepatoprotective properties of silymarin (SLM), silybinin (SLB), and silyphos (SLP) were evaluated by measuring cell viability; activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH); total antioxidant capacity (TAOxC); and reduced glutathione (GSH), superoxide dismutase (SOD), and lipid peroxidation (malondialdehyde (MDA) levels)...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28027389/paracetamol-acetaminophen-with-or-without-codeine-or-dihydrocodeine-for-neuropathic-pain-in-adults
#13
REVIEW
Philip J Wiffen, Roger Knaggs, Sheena Derry, Peter Cole, Tudor Phillips, R Andrew Moore
BACKGROUND: Paracetamol, either alone or in combination with codeine or dihydrocodeine, is commonly used to treat chronic neuropathic pain. This review sought evidence for efficacy and harm from randomised double-blind studies. OBJECTIVES: To assess the analgesic efficacy and adverse events of paracetamol with or without codeine or dihydrocodeine for chronic neuropathic pain in adults. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and Embase from inception to July 2016, together with reference lists of retrieved papers and reviews, and two online study registries...
December 27, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28002875/outcomes-from-massive-paracetamol-overdose-a-retrospective-observational-study
#14
Daniel J B Marks, Paul I Dargan, John R H Archer, Charlotte L Davies, Alison M Dines, David M Wood, Shaun L Greene
AIM: Treatment of paracetamol (acetaminophen) overdose with acetylcysteine is standardised, with dose determined only by patient weight. The validity of this approach for massive overdoses has been questioned. We systematically compared outcomes in massive and non-massive overdoses, to guide whether alternative treatment strategies should be considered, and whether the ratio between measured timed paracetamol concentrations (APAPpl ) and treatment nomogram thresholds at those time points (APAPt ) provides a useful assessment tool...
December 21, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27977844/paracetamol-acetaminophen-or-non-steroidal-anti-inflammatory-drugs-alone-or-combined-for-pain-relief-in-acute-otitis-media-in-children
#15
REVIEW
Alies Sjoukes, Roderick P Venekamp, Alma C van de Pol, Alastair D Hay, Paul Little, Anne Gm Schilder, Roger Amj Damoiseaux
BACKGROUND: Acute otitis media (AOM) is one of the most common childhood infectious diseases and a significant reason for antibiotic prescriptions in children worldwide. Pain from middle ear infection and pressure behind the eardrum is the key symptom of AOM. Ear pain is central to children's and parents' experience of the illness. Because antibiotics provide only marginal benefits, analgesic treatment including paracetamol (acetaminophen) and non-steroidal anti-inflammatory drugs (NSAIDs) is regarded as the cornerstone of AOM management in children...
December 15, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27896824/patients-with-the-worst-outcomes-after-paracetamol-acetaminophen-induced-liver-failure-have-an-early-monocytopenia
#16
J K Moore, A C MacKinnon, T Y Man, J R Manning, S J Forbes, K J Simpson
BACKGROUND: Acute liver failure (ALF) is associated with significant morbidity and mortality. Studies have implicated the immune response, especially monocyte/macrophages as being important in dictating outcome. AIM: To investigate changes in the circulating monocytes and other immune cells serially in patients with ALF, relate these with cytokine concentrations, monocyte gene expression and patient outcome. METHODS: In a prospective case-control study in the Scottish Liver Transplant Unit, Royal Infirmary Edinburgh, 35 consecutive patients admitted with paracetamol-induced liver failure (POD-ALF), 10 patients with non-paracetamol causes of ALF and 16 controls were recruited...
February 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27852690/maternal-use-of-mild-analgesics-during-pregnancy-associated-with-reduced-anogenital-distance-in-sons-a-cohort-study-of-1027-mother-child-pairs
#17
Dorte Vesterholm Lind, Katharina M Main, Henriette Boye Kyhl, David Møbjerg Kristensen, Jorma Toppari, Helle Raun Andersen, Marianne Skovsager Andersen, Niels E Skakkebæk, Tina Kold Jensen
STUDY QUESTION: Is maternal use of mild analgesics in pregnancy associated with anogenital distance (AGD)-the distance from the anus to the genitals-in the offspring? SUMMARY ANSWER: Maternal use of mild analgesics [especially simultaneous use of paracetamol and nonsteroidal anti-inflammatory drugs (NSAIDs)] during pregnancy was associated with a shorter AGD in boys whereas no effect was found in girls. WHAT IS KNOWN ALREADY: Mild analgesics including paracetamol (acetaminophen) and NSAIDs (e...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27842443/clinical-update-on-benefit-versus-risks-of-oral-paracetamol-alone-or-with-codeine-still-a-good-option
#18
Hans Georg Kress, Gerald Untersteiner
BACKGROUND: After decades of worldwide use of paracetamol/acetaminophen as a popular and apparently safe prescription and over-the-counter medicine, the future role of this poorly understood analgesic has been seriously questioned by recent concerns about prenatal, cardiovascular (CV) and hepatic safety, and also about its analgesic efficacy. At the same time the usefulness of codeine in combination products has come under debate. METHODS: Based on a PubMed database literature search on the terms efficacy, safety, paracetamol, acetaminophen, codeine and their combinations up to and including June 2016, this clinical update reviews the current evidence of the benefit and risks of oral paracetamol alone and with codeine for mild-to-moderate pain in adults, and compares the respective efficacy and safety profiles with those of nonsteroidal anti-inflammatory drugs (NSAIDs)...
February 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/27797174/bioinorganic-nanohybrid-catalyst-for-multistep-synthesis-of-acetaminophen-an-analgesic
#19
Boi Hoa San, Subramaniyam Ravichandran, Kwang-Su Park, Vinod Kumar Subramani, Kyeong Kyu Kim
A bioinorganic nanohybrid catalyst was synthesized by combining esterase with a platinum nanoparticle (PtNP). The combination of two catalysts resulted in enhanced catalytic activities, esterase hydrolysis, and hydrogenation in PtNPs, as compared to each catalyst alone. This hybrid catalyst can be successfully used in the multistep synthesis of acetaminophen (paracetamol), an analgesic and antipyretic drug, in a one-pot reaction with high yield and efficacy within a short time, demonstrating that the nanobiohybrid catalyst offers advantages in the synthesis of fine chemicals in industrial applications...
November 9, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27792836/randomized-controlled-multicentre-clinical-trial-of-the-antipyretic-effect-of-intravenous-paracetamol-in-patients-admitted-to-hospital-with-infection
#20
Thomas Tsaganos, Ioulia K Tseti, Nikolaos Tziolos, Georgios-Stefanos Soumelas, Marina Koupetori, Athina Pyrpasopoulou, Karolina Akinosoglou, Charalambos Gogos, Nikolaos Tsokos, Asterios Karagiannis, Styliani Sympardi, Evangelos J Giamarellos-Bourboulis
AIM: No randomized study has been conducted to investigate the use of intravenous paracetamol (acetaminophen, APAP) for the management of fever due to infection. The present study evaluated a new ready-made infusion of paracetamol. METHODS: Eighty patients with a body temperature onset ≥38.5°C in the previous 24 h due to infection were randomized to a single administration of placebo (n = 39) or 1 g paracetamol (n = 41), and their temperature was recorded at standard intervals...
April 2017: British Journal of Clinical Pharmacology
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