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https://www.readbyqxmd.com/read/29451045/modified-release-paracetamol-overdose-a-prospective-observational-study-atom-3
#1
Angela L Chiew, Geoffrey K Isbister, Colin B Page, Katharine A Kirby, Betty S H Chan, Nicholas A Buckley
BACKGROUND: Modified-release (MR) paracetamol is available in many countries as 665 mg tablets of which 69% is MR and 31% is immediate release. There are concerns that MR paracetamol overdose has higher rates of liver injury despite standard treatment algorithms. The objective of this study was to describe the clinical characteristics and outcomes of acute MR paracetamol overdose. METHODS: Prospective observational study, recruiting patients from January 2013 to June 2017, from five clinical toxicology units and calls to two Poisons Information Centres in Australia...
February 16, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29449664/incidence-and-clinical-characteristics-of-ciguatera-fish-poisoning-in-guadeloupe-french-west-indies-between-2013-and-2016-a-retrospective-cases-series
#2
Denis Boucaud-Maitre, Jean-Paul Vernoux, Stéphane Pelczar, Elise Daudens-Vaysse, Lyderic Aubert, Sylvie Boa, Serge Ferracci, Robert Garnier
This retrospective case study analysed the incidence and symptoms of ciguatera fish poisoning (ciguatera) in Guadeloupe (French West Indies) between 2013 and 2016. Cases attending the emergency departments of the two public hospitals and the reports received by the regional health authority in charge of monitoring (ARS) were compiled. Two hundred and thirty-four cases of poisoning were observed, with a mean annual incidence of 1.47/10,000 (95% CI): 1.29-1.66), i.e 5 times higher than the previously reported incidence (1996-2006)...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29449118/shot-by-a-gun-%C3%A2-missed-by-a-provider
#3
Eddie Garcia, Abdul H Zaid, Diane P Calello, Lisa McHugh, Grant Arzumanov, Najaf Asrar, Ari Sapin, Kristin G Fless
BACKGROUND: Botulism is a paralytic disease caused by the neurotoxin produced by Clostridium botulinum. The majority of cases are due to ingestion or injection drug use. Wound botulism from traumatic injury is exceedingly rare, with only one to two cases reported each year in the United States. CASE REPORT: A 27-year-old man presented to the Emergency Department with diplopia, dysphagia, and progressive weakness 10 days after sustaining a gunshot wound to his right lower leg...
February 12, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29449069/repercussions-of-the-great-east-japan-earthquake-tsunami-on-ellipsoidal-alexandrium-cysts-dinophyceae-in-ofunato-bay-japan
#4
Kazumi Matsuoka, Yuri Ikeda, Shinnosuke Kaga, Yoshimasa Kaga, Takehiko Ogata
Shellfish aquaculture in Ofunato Bay, Northeast Japan, was seriously damaged by a tsunami generated by the Great East Japan Earthquake, March 11th, 2011, accompanied by paralytic shellfish poisoning (PSP) outbreaks caused by Alexandrium tamarense (Dinophyceae). To understand longer future trends of PSP, an investigation was made of the historical occurrence and causes of Alexandrium outbreaks after the tsunami. Vertical distributions of Alexandrium cysts in two sediment-cores from Ofunato Bay revealed that the sediments above ca...
January 4, 2018: Marine Environmental Research
https://www.readbyqxmd.com/read/29448519/peroxidase-like-activity-of-gold-nanoparticles-and-their-gold-staining-enhanced-elisa-application
#5
Doudou Lou, Yanyan Tian, Yu Zhang, Junjie Yin, Ting Yang, Chuan He, Ming Ma, Wei Yu, Ning Gu
We found that the peroxidase-like activity of gold nanoparticles (GNPs) followed the Michaelis-Menten kinetic model and was dependent on environmental pH and temperature, which was very similar to natural Horseradish Peroxidase (HRP). However, unlike HRP, which needs a lower H2O2 concentration with a very narrow range to reach a maximum reaction rate and avoid enzyme poisoning, GNPs have very high activity, even at an H2O2 concentration two orders of magnitude higher than HRP. It was demonstrated that H2O2 treatment could enhance the peroxidase-like activity of GNPs, resulting thus in the activity increase in a circular catalytic reaction by the reduplicative use of GNPs...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29446772/production-of-ready-to-use-few-layer-graphene-in-aqueous-suspensions
#6
Jose M González-Domínguez, Verónica León, María Isabel Lucío, Maurizio Prato, Ester Vázquez
Graphene has promising physical and chemical properties such as high strength and flexibility, coupled with high electrical and thermal conductivities. It is therefore being incorporated into polymer-based composites for use in electronics and photonics applications. A main constraint related to the graphene development is that, being of a strongly hydrophobic nature, almost all dispersions (usually required for its handling and processing toward the desired application) are prepared in poisonous organic solvents such as N-methyl pyrrolidone or N,N-dimethyl formamide...
March 2018: Nature Protocols
https://www.readbyqxmd.com/read/29446742/development-of-an-in-vitro-drug-delivery-efficiency-test-for-a-pulmonary-toxicokinetic-pig-study
#7
Nadine Schaefer, Ann-Katrin Kroll, Matthias W Laschke, Michael D Menger, Hans H Maurer, Markus R Meyer, Peter H Schmidt
BACKGROUND: Since their appearance on the drugs of abuse market, synthetic cannabinoids (SCs) are gaining increasing toxicological relevance. They are consumed without knowledge of their toxicokinetic (TK) and toxicodynamic properties and human studies are not allowed due to ethical reasons. A controlled animal TK study following nebulization of 4-ethylnaphthalene-1-yl-(1-pentylindole-3-yl)methanone (JWH-210), 2-(4-methoxyphenyl)-1-(1-pentyl-indole-3-yl)methanone (RCS-4) as well as Δ9-tetrahydrocannabinol (THC) to pigs should be helpful for better interpretation of analytical results in cases of misuse or poisoning...
February 14, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29446719/dna-double-strand-breaks-repair-inhibitors-relevance-as-potential-new-anticancer-therapeutics
#8
Paulina Kopa, Anna Macieja, Grzegorz Galita, Zbigniew J Witczak, Tomasz Poplawski
DNA Double-strand breaks are considered one of the most lethal form of DNA damage. Many effective anticancer therapeutic approaches used chemical and physical methods to generate DNA double-strand breaks in the cancer cells. They include: IR and drugs which mimetic its action, topoisomerase poisons, some alkylating agents or drugs which affected DNA replication process. On the other hand, cancer cells are mostly characterized by highly effective systems of DNA damage repair. There are two main DNA repair pathways used to fix double-strand breaks: NHEJ and HRR...
February 13, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29445807/base-free-n-alkylation-of-anilines-with-arch-2-oh-and-transfer-hydrogenation-of-aldehydes-ketones-catalyzed-by-the-complexes-of-%C3%AE-5-cp-ir-iii-with-chalcogenated-schiff-bases-of-anthracene-9-carbaldehyde
#9
Pooja Dubey, Sonu Gupta, Ajai K Singh
The condensation of anthracene-9-carbaldehyde with 2-(phenylthio/seleno)ethylamine results in Schiff bases [PhS(CH 2 ) 2 C[double bond, length as m-dash]N-9-C 14 H 9 ](L1) and [PhSe(CH 2 ) 2 C[double bond, length as m-dash]N-9-C 14 H 9 ] (L2). On their reaction with [(η 5 -Cp*)IrCl(μ-Cl)] 2 and CH 3 COONa at 50 °C followed by treatment with NH 4 PF 6 , iridacycles, [(η 5 -Cp*)Ir(L-H)][PF 6 ] (1: L = L1; 2: L = L2), result. The same reaction in the absence of CH 3 COONa gives complexes [(η 5 -Cp*)Ir(L)Cl][PF 6 ] (3-4) in which L = L1(3)/L2(4) ligates in a bidentate mode...
February 15, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29442611/relative-toxicity-of-benzodiazepines-and-hypnotics-commonly-used-for-self-poisoning-an-epidemiological-study-of-fatal-toxicity-and-case-fatality
#10
Galit Geulayov, Anne Ferrey, Deborah Casey, Claudia Wells, Alice Fuller, Clare Bankhead, David Gunnell, Caroline Clements, Navneet Kapur, Jennifer Ness, Keith Waters, Keith Hawton
The relative toxicity of anxiolytic and hypnotic drugs commonly used for self-poisoning was assessed using data on suicides, prescriptions and non-fatal self-poisonings in England, 2005-2012. Data on suicide by self-poisoning were obtained from the Office for National Statistics, information on intentional non-fatal self-poisoning was derived from the Multicentre Study of Self-harm in England and data on prescriptions in general practice from the Clinical Practice Research Datalink. We used two indices of relative toxicity: fatal toxicity (the number of fatal self-poisonings relative to the number of individuals prescribed each drug) and case fatality (the number of fatal relative to non-fatal self-poisonings)...
February 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29435715/clinical-chameleons-an-emergency-medicine-focused-review-of-carbon-monoxide-poisoning
#11
REVIEW
Patrick Chow Yuen Ng, Brit Long, Alex Koyfman
Carbon monoxide (CO) is a colorless, odorless gas that is found in the environment, in the home, and in the human body as a normal part of mammalian metabolism. Poisoning from CO, a common exposure, is associated with significant morbidity and mortality if not recognized and treated in a timely manner. This review evaluates the signs and symptoms of CO poisoning, conditions that present similar to CO poisoning, and an approach to the recognition and management for CO poisoning. CO poisoning accounts for thousands of emergency department visits annually...
February 12, 2018: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/29435275/safe-use-of-chemicals-by-professional-users-and-health-care-specialists
#12
Margarita Apatsidou, Ioanna Konstantopoulou, Eleni Foufa, Konstantinos Tsarouhas, Petros Papalexis, Ramin Rezaee, Demetrios A Spandidos, Demetrios Kouretas, Christina Tsitsimpikou
The awareness of Greek professional users and health care specialists regarding the safe use of chemicals was investigated, to be the best of our knowledge, for the first time after the introduction of Regulations (EC) 1907/2006 (REACH) and 1272/2008 (CLP) on chemicals. A total of 200 professional users and 150 health care specialists from various regions of Greece contributed to the use of a closed-ended, anonymous and validated questionnaire. The findings showed that over 85% of the responders were not aware of classification, labelling and packaging (CLP) and 67...
February 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29434782/effects-of-il-10-on-ox62-mhc-ii-and-cd86-in-bone-marrow-dcs-in-rats-with-organophosphate-poisoning
#13
Ning Wang, Jinfeng Wang, Ronggang Jiang
This study investigated the effect of interleukin (IL)-10 on the expression of OX62, MHC-II and CD86 in bone marrow dendritic cells (DCs) in rats with organophosphorus poisoning. Sixty adult SD rats were randomly divided into normal control group (group A) (20 rats), 20 rats with organophosphorus pesticide poisoning (group B), 20 rats with organophosphorus poisoning, and IL-10 treated (group C). Group A was not treated with special treatment. Group B was treated with 4% omethoate by gavage to establish the model of organophosphate poisoning...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29433468/suicide-and-deliberate-self-harm-in-pakistan-a-scoping-review
#14
Sualeha S Shekhani, Shagufta Perveen, Dur-E-Sameen Hashmi, Khawaja Akbar, Sara Bachani, Murad M Khan
BACKGROUND: Suicide is a major global public health problem with more than 800,000 incidents worldwide annually. Seventy-five percent of the global suicides occur in low and middle-income countries (LMICs). Pakistan is a LMIC where information on suicidal behavior is limited. The aim of the review is to map available literature on determinants, risk factors and other variables of suicidal behavior in Pakistan. METHOD: This study was based on Arksey and O'Malley's methodological framework of scoping review, combining peer reviewed publications with grey literature...
February 12, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29433390/ethnomedicine-phytochemistry-and-pharmacology-of-smilax-glabra-an-important-traditional-chinese-medicine
#15
Shiyao Hua, Yiwei Zhang, Jiayue Liu, Lin Dong, Jun Huang, Dingbo Lin, Xueyan Fu
Smilax glabra (SG) Roxb., a well-known traditional Chinese medicine, has been extensively used worldwide for its marked pharmacological activities for treating syphilitic poisoned sores, limb hypertonicity, morbid leucorrhea, eczema pruritus, strangury due to heat, carbuncle toxin, and many other human ailments. Approximately 200 chemical compounds have been isolated from SG Roxb., and the major components have been determined to be flavonoids and flavonoid glycosides, phenolic acids, and steroids. Among these active compounds, the effects of astilbin, which is used as a quality control marker to determine the quality of SG Roxb...
February 12, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29433352/buprenorphine-alone-or-with-naloxone-which-is-safer
#16
Erin Kelty, Craig Cumming, Lakhhina Troeung, Gary Hulse
To address concerns regarding the intravenous diversion of buprenorphine, a combined buprenorphine-naloxone (BUP-NLX) preparation was developed. The aim of this study is to compare health outcomes in opioid dependent patients treated with BUP and BUP-NLX. All patients treated with BUP and/or BUP-NLX in Western Australia between 2001 and 2010 were included in the study ( N = 3455). Patients were identified via State prescribing records and matched against the State mortality, hospital, and emergency department records...
February 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29433086/potential-roles-for-glucagon-like-peptide-1-7-36-amide-and-cholecystokinin-in-anorectic-response-to-the-trichothecene-mycotoxin-t-2-toxin
#17
Wenda Wu, Kun Sheng, Xinglian Xu, Haibin Zhang, Guanghong Zhou
Anorexia is a hallmark of animal and human exposed to T-2 toxin, a most poisonous trichothecene mycotoxins contaminating various cereal grains including wheat, corn and barley. Although this adverse effect has been well characterized in several animal species, the underlying mechanisms are unclear. The goal for this study was to elucidate the roles of two gut satiety hormones, glucagon-like peptide-17-36amide (GLP-1) and cholecystokinin (CCK) in T-2 toxin-evoked anorectic response using a mouse anorexia bioassay...
February 9, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29431551/lead-interacting-proteins-and-their-implication-in-lead-poisoning
#18
Iara Dantas de Souza, Abraão Silveira de Andrade, Rodrigo Juliani Siqueira Dalmolin
Lead is an important heavy metal used worldwide in several applications, especially in industry. People exposed to lead can develop a wide range of symptoms associated with lead poisoning. Many effects of lead poisoning are reported in the literature, showing a compromising of whole body health, with symptoms related to cardiovascular, immune, bone, reproductive, hematological, renal, gastrointestinal, and nervous system. However, the molecular lead targets as well as the pathways affected by lead poisoning are not completely described...
February 12, 2018: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/29431532/a-29-year-analysis-of-acute-peak-salicylate-concentrations-in-fatalities-reported-to-united-states-poison-centers
#19
Brandon J Warrick, Andrew King, Susan Smolinske, Ronald Thomas, Cynthia Aaron
BACKGROUND/OBJECTIVES: The threshold salicylate concentration commonly recommended to initiate extracorporeal elimination, in the absence of significant end-organ toxicity, is 100 mg/dL. Unfortunately, the grade of evidence to support this decision is low. Our primary aim is to describe highest reported salicylate concentrations in patients who died from acute salicylate ingestions. Our secondary aim is to determine if age or coingestants varied with highest reported salicylate concentration...
February 12, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29431008/gasoline-related-injuries-and-fatalities-in-the-united-states-1995-2014
#20
Dorothy A Drago
This descriptive study examines twenty years of gasoline-related fatalities and emergency department treated injuries in the United States, based on data from the US Consumer Product Safety Commission. Thermal burns consistently accounted for the majority (56%) of gasoline-related injuries and for most (82%) gasoline-related deaths, and were commonly (57-71%) associated with the use of gasoline as an accelerant. Poisoning accounted for 13% of injuries and 17% of deaths. The primary poisoning injury pattern was ingestion; the primary fatality pattern was inhalation, with about half of those associated with deliberate abuse...
February 12, 2018: International Journal of Injury Control and Safety Promotion
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