keyword
MENU ▼
Read by QxMD icon Read
search

Methanol poisoning

keyword
https://www.readbyqxmd.com/read/29231019/-simultaneous-quantitative-analysis-of-koumine-gelsemine-and-gelsenicine-in-biological-samples-by-lc-ms-ms
#1
S J Ji, W Liu
OBJECTIVES: To establish a LC-MS/MS method which is accurate and sensitive for determination of koumine, gelsemine, and gelsenicine in biological samples and to verify the method. METHODS: Strychnine was used as internal standard. Analytes in blood, urine and liver with 1% sodium hydroxide solution were extracted by ethyl acetate. Chromatographic separation was achieved on a ZORBAX SB-C₁₈ column (150 mm×2.1 mm, 5 μm), and gradient elution was performed with the buffer solution of methanol-20 mmol/L ammonium acetate (including 0...
April 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29214597/fabrication-and-characterization-of-new-composite-tio2-carbon-nanofiber-anodic-catalyst-support-for-direct-methanol-fuel-cell-via-electrospinning-method
#2
N Abdullah, S K Kamarudin, L K Shyuan, N A Karim
Platinum (Pt) is the common catalyst used in a direct methanol fuel cell (DMFC). However, Pt can lead towards catalyst poisoning by carbonaceous species, thus reduces the performance of DMFC. Thus, this study focuses on the fabrication of a new composite TiO2 carbon nanofiber anodic catalyst support for direct methanol fuel cells (DMFCs) via electrospinning technique. The distance between the tip and the collector (DTC) and the flow rate were examined as influencing parameters in the electrospinning technique...
December 6, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29210340/homicidal-methanol-poisoning-in-filicide-suicide
#3
Asit K Sikary, C Behera
Most methanol poisonings are accidental. We present a rare case of filicide-suicide, where a youth was killed by methanol poisoning and his parents then committed suicide by jumping in front of a running train. The father's suicide note explains the crime.
December 2017: Medico-legal Journal
https://www.readbyqxmd.com/read/29171574/methanol-poisoning-27-years-experience-at-a-tertiary-care-hospital
#4
Fareed Ahmed, Nadeem Ullah Khan, Noman Ali, Asher Feroze
Methanol toxicity can result in serious morbidity and mortality without timely diagnosis and treatment. Many cases of methanol poisoning outbreaks have been noted in our population but no study has been performed to estimate methanol exposure and its outcomes and complications. A retrospective study was conducted to review all the cases of methanol poisoning admitted from January 1988 to December 2015 at the Aga Khan University Hospital. A total of 35 methanol poisoning cases were reported. All the patients were male, and the mean age was 36...
November 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29107732/the-rapid-determination-of-bromadiolone-in-liver-and-blood-plasma-by-in-injector-pyrolysis-gas-chromatography-ion-trap-tandem-mass-spectrometry
#5
Veronika Doubková, Petr Maršálek, Vladimír Večerek
The unintentional poisoning of off-target animals by bromadiolone, a second generation anticoagulant rodenticide, is an undesirable outcome requiring sensitive analytical methods. In this study, a rapid and sensitive method for the determination of bromadiolone in liver and blood plasma by means of gas chromatography coupled with tandem mass spectrometry without need for derivatization was developed. The method is based on the in-injector pyrolysis of bromadiolone and subsequent gas chromatography coupled with ion trap tandem mass spectrometry with electron ionization...
October 14, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29096991/intox-detox-antidotes-evidence-based-diagnosis-and-treatment-of-acute-intoxications
#6
Andreas Schaper, Martin Ebbecke
BACKGROUND AND AIM: Aim of this review is to describe the role of clinical toxicology in the context of acute medicine. A special focus is put on antidotes and important aspects of diagnosis and therapy of acute intoxications. The data of the annual report of GIZ-Nord Poisons Centre is analyzed concerning the following aspects: what intoxications are relevant in acute medicine, are there special aspects in therapy, e.g. antidotes, and what antidotes are relevant? More over intoxication-related fatalities are analyzed...
October 30, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29091086/trimetallic-ptauni-alloy-nanoparticles-as-an-efficient-electrocatalyst-for-the-methanol-electrooxidation-reaction
#7
Kousik Bhunia, Santimoy Khilari, Debabrata Pradhan
Platinum is an excellent electrocatalyst. However, the disadvantages of Pt as an electrocatalyst lie in its poor earth abundance, high cost, and poor stability due to surface poisoning. Thus it remains a challenge to find suitable alternative electrocatalysts and/or reduce the use of Pt. Herein, we report the solvothermal synthesis of bimetallic (PtAu and PtNi) and trimetallic (PtAuNi) alloy nanoparticles (NPs) with controlled percentages of individual metals. With an optimized Ni content, the trimetallic (Pt66Au11Ni23) alloy NPs show superior electrocatalytic activity (in terms of lower onset oxidation potential and higher mass activity) not only to bimetallic alloy NPs (PtAu and PtNi) but also to commercial Pt/C (20% Pt loading) for methanol electrooxidation (MEO)...
November 14, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29081461/rapid-lc-ms-determination-of-acromelic-acids-a-and-b-toxic-constituents-of-the-mushroom-paralepistopsis-acromelalga
#8
Naoki Yoshioka, Hitoshi Ouchi, Toshiyuki Kan, Masashi Yoshida, Motoyuki Nomura
A rapid LC-MS method was developed for determination of acromelic acids A and B, which are toxic constituents of Paralepistopsis acromelalga (=Clitocybe acromelalga), in mushroom samples. Acromelic acids were extracted twice with 50% methanol and the extract was passed through a syringe filter, and then analyzed by LC-MS. The LC separation was performed on a multi-mode ODS column. The recoveries of acromelic acids A and B spiked into blank mushroom samples at 2.5 μg/g were 93 and 74%, respectively. This method was applied to the remaining mushroom sample from a food poisoning case...
2017: Shokuhin Eiseigaku Zasshi. Journal of the Food Hygienic Society of Japan
https://www.readbyqxmd.com/read/29075689/defective-graphene-anchored-iron-cobalt-nanoparticles-for-efficient-electrocatalytic-oxygen-reduction
#9
Xuecheng Yan, Yi Jia, Longzhou Zhang, Mun Teng Soo, Xiangdong Yao
A non-precious FeCo nanoparticle decorated defective graphene (DG) sample, DG@FeCo, was successfully synthesized via a facile impregnation method. It is shown that DG@FeCo exhibits similar oxygen reduction reaction activity to that of commercial Pt/C, but has much better durability and is free from methanol poisoning in alkaline electrolytes.
November 7, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29055193/specific-bioanalytical-optical-and-photoelectrochemical-assays-for-detection-of-methanol-in-alcoholic-beverages
#10
Javier Barroso, Beatriz Díez-Buitrago, Laura Saa, Marco Möller, Nerea Briz, Valeri Pavlov
Methanol is a poison which is frequently discovered in alcoholic beverages. Innovative methods to detect methanol in alcoholic beverages are being constantly developed. We report for the first time a new strategy for the detection of methanol using fluorescence spectroscopy and photoelectrochemical (PEC) analysis. The analytical system is based on the oxidation of cysteine (CSH) with hydrogen peroxide (H2O2) enzymatically generated by alcohol oxidase (AOx). H2O2 oxidizes capping agent CSH, modulating the growth of CSH-stabilized cadmium sulphide quantum dots (CdS QDs)...
October 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29039800/high-ethanol-contents-of-spirit-drinks-in-kibera-slums-kenya-implications-for-public-health
#11
Alex O Okaru, Kennedy O Abuga, Isaac O Kibwage, Dirk W Lachenmeier
Cheap licit and artisanal illicit spirit drinks have been associated with numerous outbreaks of alcohol poisoning especially with methanol. This study aimed to evaluate the quality of cheap spirit drinks in Kibera slums in Nairobi County, Kenya. The samples consisted of cheap licit spirits (n = 11) and the artisanal spirit drink, 'chang'aa', (n = 28). The parameters of alcoholic strength and volatile composition were used as indicators of quality and were determined using gas chromatography with flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS) respectively...
October 17, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29027721/n-doped-carbon-nano-fibrous-network-derived-from-bacterial-cellulose-for-the-loading-of-pt-nanoparticles-for-methanol-oxidation-reaction
#12
Fanshu Yuan, Yang Huang, Mengmeng Fan, Chuntao Chen, Jieshu Qian, Qingli Hao, Jiazhi Yang, Dongping Sun
It is still challenging to prepare Pt based catalysts with high activity and durability with low cost on a large scale for methanol oxidation reaction. The key is to look for suitable supporting materials. In this paper, we report a facile preparation of N-doped carbon nano-fibrous network by annealing a gel containing two inexpensive and eco-friendly precursors, i.e. bacterial cellulose and urea, for the loading of Pt nanoparticles. An undoped analog was also prepared for comparison. Meanwhile, we evaluated the effect of the annealing temperature on the performance of the catalysts...
October 13, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29026846/intracranial-hemorrhage-in-methanol-toxicity-challenging-the-probable-heparin-effect-during-hemodialysis
#13
Hossein Hassanian-Moghaddam, Hooman Bahrami-Motlagh, Nasim Zamani, Seyed Amirhossein Fazeli, Behdad Behnam
Brain hemorrhages are rare complications of acute methanol poisoning. There is a debate on association of brain hemorrhage in methanol toxicity and application of systemic anticoagulation during hemodialysis (HD). A 70-year-old male presented to us with severe metabolic acidosis and a methanol level of 7.6 mg/dL. Ethanol and folinic acid were administered, and HD was performed. Brain computed tomography (CT) scan which was normal on presentation showed extensive bilateral subcortical supratentorial hypodensities on the 3(rd) day after commencing the treatment...
July 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/29021915/optical-coherence-tomography-findings-in-methanol-toxicity
#14
Kendra A Klein, Alexis K Warren, Caroline R Baumal, Thomas R Hedges
BACKGROUND: Methanol toxicity poses a significant public health problem in developing countries, and in Southeast Asia, where the most common source of poisoning is via adulterated liquor in local drinks. Methanol toxicity can have devastating visual consequences and retinal specialists should be aware of the features of this toxic optic neuropathy. The authors report a case of severe systemic methanol toxicity and relatively mild optic neuropathy demonstrating unique retinal changes on optical coherence tomography (OCT)...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28929754/spectro-electrochemical-examination-of-the-formation-of-dimethyl-carbonate-from-co-and-methanol-at-different-electrode-materials
#15
Marta C Figueiredo, Vinh Trieu, Stefanie Eiden, Marc T M Koper
In this work, we report a fundamental mechanistic study of the electrochemical oxidative carbonylation of methanol with CO for the synthesis of dimethyl carbonate on metallic electrodes at low overpotentials. For the first time, the reaction was shown to take place on the metallic catalysts without need of oxidized metals or additives. Moreover, in-situ spectroelectrochemical techniques were applied to this electrosynthesis reaction in order to reveal the reaction intermediates and to shed light into the reaction mechanism...
October 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28832029/poisoning-deaths-in-poland-types-and-frequencies-reported-in-%C3%A5-%C3%A3-d%C3%A5%C2%BA-krak%C3%A3-w-sosnowiec-gda%C3%A5-sk-wroc%C3%A5-aw-and-pozna%C3%A5-during-2009-2013
#16
Anna Krakowiak, Anna Piekarska-Wijatkowska, Katarzyna Kobza-Sindlewska, Anna Rogaczewska, Piotr Politański, Piotr Hydzik, Beata Szkolnicka, Tomasz Kłopotowski, Sebastian Picheta, Barbara Porębska, Andrzej Antończyk, Wojciech Waldman, Jacek Sein Anand, Eryk Matuszkiewicz, Magdalena Łukasik-Głębocka
OBJECTIVES: The aim of this study has been to assess the characteristics of acute poisoning deaths in Poland over a period of time 2009-2013. MATERIAL AND METHODS: The analysis was based on the data obtained from the patient records stored in toxicology departments in 6 cities - Łódź, Kraków, Sosnowiec, Gdańsk, Wrocław and Poznań. Toxicological analyses were routinely performed in blood and/or urine. Major toxic substances were classified to one of the following categories: pharmaceuticals, alcohol group poisonings (ethanol and other alcohols), gases, solvents, drugs of abuse, pesticides, metals, mushrooms, others...
August 22, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28820222/quasi-zero-dimensional-cobalt-doped-ceo2-dots-on-pd-catalysts-for-alcohol-electro-oxidation-with-enhanced-poisoning-tolerance
#17
Qiang Tan, Haiyan Zhu, Shengwu Guo, Yuanzhen Chen, Tao Jiang, Chengyong Shu, Shaokun Chong, Benjamin Hultman, Yongning Liu, Gang Wu
Deactivation of an anode catalyst resulting from the poisoning of COad-like intermediates is one of the major problems for methanol and ethanol electro-oxidation reactions (MOR & EOR), and remains a grand challenge towards achieving high performance for direct alcohol fuel cells (DAFCs). Herein, we report a new approach for the preparation of ultrafine cobalt-doped CeO2 dots (Co-CeO2, d = 3.6 nm), which can be an effective anti-poisoning promoter for Pd catalysts towards MOR and EOR in alkaline media. Compared to Pd/CeO2 and pure Pd, the hybrid Pd/Co-CeO2 nanocomposite catalyst exhibited a much enhanced activity and remarkable anti-poisoning ability for both MOR and EOR...
August 31, 2017: Nanoscale
https://www.readbyqxmd.com/read/28752295/nmr-based-metabolomics-reveals-the-metabolite-profiles-of-vibrio-parahaemolyticus-under-ferric-iron-stimulation
#18
Jun Zhou, Chenyang Lu, Dijun Zhang, Chennv Ma, Xiurong Su
Vibrio parahaemolyticus is a halophilic bacterium endemic to coastal areas, and its pathogenicity has caused widespread seafood poisoning. In our previous research, the protein expression of V. parahaemolyticus in Fe(3+) medium was determined using isobaric tags for relative and absolute quantitation (iTRAQ). Here, nuclear magnetic resonance (NMR) was used to detect changes in the V. parahaemolyticus metabolome. NMR spectra were obtained using methanol-water extracts of intracellular metabolites from V. parahaemolyticus under various culture conditions, and 62 metabolites were identified, including serine, arginine, alanine, ornithine, tryptophan, glutamine, malate, NAD(+), NADP(+), oxypurinol, xanthosine, dCTP, uracil, thymine, hypoxanthine, and betaine...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28741355/pt-nanoparticles-densely-coated-on-sno2-covered-multiwalled-carbon-nanotubes-with-excellent-electrocatalytic-activity-and-stability-for-methanol-oxidation
#19
Meihua Huang, Jianshuo Zhang, Chuxin Wu, Lunhui Guan
A new electrocatalyst exhibiting enhanced activity and stability is designed from SnO2-covered multiwalled carbon nanotubes coated with 85 wt % ratio Pt nanoparticles (NPs). This catalyst showed a mass activity 6.2 times as active as that of the commercial Pt/C for methanol oxidation, owing to the unique one-dimensional structure. Moreover, the durability and antipoisoning ability were also improved greatly. The enhanced intrinsic performance was ascribed to the densely connected networks of Pt NPs on the SnO2 NPs...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28730555/intermittent-versus-continuous-renal-replacement-therapy-in-acute-methanol-poisoning-comparison-of-clinical-effectiveness-in-mass-poisoning-outbreaks
#20
Sergey Zakharov, Jan Rulisek, Olga Nurieva, Katerina Kotikova, Tomas Navratil, Martin Komarc, Daniela Pelclova, Knut Erik Hovda
BACKGROUND: Intermittent hemodialysis (IHD) is the modality of choice in the extracorporeal treatment (ECTR) of acute methanol poisoning. However, the comparative clinical effectiveness of intermittent versus continuous modalities (CRRT) is unknown. During an outbreak of mass methanol poisoning, we therefore studied the effect of IHD versus CRRT on mortality and the prevalence of visual/central nervous system (CNS) sequelae in survivors. METHODS: The study was designed as prospective observational cohort study...
December 2017: Annals of Intensive Care
keyword
keyword
83443
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"