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Emergency Toxicology

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https://www.readbyqxmd.com/read/29346037/development-of-an-ultrasensitive-pcr-assay-for-polycyclic-musk-determination-in-fish
#1
Xiaohan Zhang, Huisheng Zhuang
Polycyclic musks (PCMs) in the aquatic environment and organisms have become an emerging environmental issue because of their potential risk. The most used method for polycyclic musk determination is gas chromatography-mass spectrometry (GC-MS) with different sample extractions, which are somewhat expensive to operate, complex and laborious. In this study, a novel and ultrasensitive real-time polymerase chain reaction (PCR) assay with multiple signal amplification of carboxylic-DNA by gold nanoparticle-polyamidoamine conjugation (Au-PAMAM) was developed for determining polycyclic musks in fish...
January 18, 2018: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29342480/phenolic-compounds-as-arginase-inhibitors-new-insights-regarding-endothelial-dysfunction-treatment
#2
Bruno Rodrigo Minozzo, Daniel Fernandes, Flávio Luís Beltrame
Endothelial dysfunction is characterised by the low bioavailability of nitric oxide with a relevant negative impact on the nitric oxide/cGMP pathway. The loss of nitric oxide/cGMP signaling may be caused by an increased arginase activity. Plant-derived substances, especially polyphenols, are compounds that have the potential to inhibit arginase activity and they may represent an attractive therapeutic option to combat clinical outcomes related to endothelial dysfunction. An extensive review was carried out using all available data published in English in the Pubmed database, and without restriction regarding the year of publication...
January 17, 2018: Planta Medica
https://www.readbyqxmd.com/read/29332417/-concise-history-of-toxicology-from-empiric-knowledge-to-science
#3
Anna Tompa, Péter Balázs
Toxicology is a science of poisonings by xenobiotics and endogenous physiological changes. Its empiric roots may be traced back to the emerging of the human race because the most important pledge of our predecessors' survival was the differentiation between eatable and poisonous plants and animals. In the course of social evolution, there were three main fields of using poisons: 1) hunting and warfare, 2) to settle social tensions by avoiding military conflicts through hiding strategy of eliminating enemies by toxic substances, 3) medicines applied first as anti-poisons and later by introducing strong substances to defeat diseases, but paradoxically active euthanasia is also a part of the whole story...
January 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29331315/ethnobotany-phytochemistry-and-pharmacology-of-arctotis-arctotoides-l-f-o-hoffm-a-review
#4
REVIEW
Md Moshfekus Saleh-E-In, Johannes Van Staden
ETHNOPHARMACOLOGICAL RELEVANCE: Arctotis arctotoides (Asteraceae) is part of the genus Arctotis. Arctotis is an African genus of approximately 70 species that occur widely in the African continent with diverse medicinal values. This plant is used for the treatment of indigestion and catarrh of the stomach, epilepsy, topical wounds and skin disorders among the ethnic groups in South Africa and reported to have a wide spectrum of pharmacological properties. AIM OF THE REVIEW: The aim of the present review is to appraise the botany, traditional uses, phytochemistry, pharmacological potential, analytical methods and safety issues of A...
January 10, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29329431/a-validated-method-for-the-screening-of-320-forensically-significant-compounds-in-blood-by-lc-qtof-with-simultaneous-quantification-of-selected-compounds
#5
Emma Partridge, Stephen Trobbiani, Peter Stockham, Timothy Scott, Chris Kostakis
A broad drug screening method for toxicologically significant drugs and metabolites in whole blood using liquid chromatography time-of-flight mass spectrometry (LC/QTOF) was developed and comprehensively validated. The method qualitatively screens for 320 compounds while simultaneously quantifying 39. Compounds were extracted from the blood using alkaline liquid/liquid extraction and chromatographic separation was achieved in 12 min. The QTOF was operated using positive mode electrospray ionization using data dependent acquisition...
January 10, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29320384/cannabinoid-hyperemesis-syndrome-and-the-consulting-psychiatrist-a-case-study-of-diagnosis-and-treatment-for-an-emerging-disorder-in-psychiatric-practice
#6
Kristopher A Kast, Liliya Gershengoren
The increasing prevalence of cannabis use in the United States requires awareness of cannabis-related disorders and familiarity with treatment options. We present a case of cannabinoid hyperemesis syndrome that required psychiatric consultation for diagnostic clarification and effective treatment with intravenous haloperidol. Literature from emergency medicine, toxicology, and gastroenterology is reviewed, including proposed diagnostic criteria for cannabinoid hyperemesis syndrome and reported off-label treatment options, with a specific focus on clinical questions facing the practicing psychiatrist regarding this emerging disorder...
January 2018: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/29297718/evaluation-of-physiologic-alterations-during-prehospital-paramedic-performed-rapid-sequence-intubation
#7
Robert G Walker, Lynn J White, Geneva N Whitmore, Alexander Esibov, Michael K Levy, Gregory C Cover, Joel D Edminster, James M Nania
OBJECTIVE: Physiologic alterations during rapid sequence intubation (RSI) have been studied in several emergency airway management settings, but few data exist to describe physiologic alterations during prehospital RSI performed by ground-based paramedics. To address this evidence gap and provide guidance for future quality improvement initiatives in our EMS system, we collected electronic monitoring data to evaluate peri-intubation vital signs changes occurring during prehospital RSI...
January 3, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29290509/ambient-mass-spectrometry-for-rapid-diagnosis-of-psychoactive-drugs-overdose-in-an-unstable-patient
#8
Chi-Wei Lee, Yu-Ying Chao, Jentaie Shiea, Jheng-Heng Shen, Hei-Hwa Lee, Bai-Hsiun Chen
A 25-year-old man suffered from consciousness change was sent to our emergency department by friends who reported that they were not sure what had happened to him. Physical examination revealed bilateral pupils dilatation, lethargy, slurred speech, and ataxia. Computer-aided tomographic scan of the brain revealed no definite evidence of intracranial lesions. Routine laboratory tests revealed total physiological turmoil. Despite immediate commencement of aggressive treatment, the patient's condition deteriorated long before the traditional drug screen provided an answer for the identities of the multiple drugs overdose...
December 20, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29284546/medical-emergencies-related-to-ethanol-and-illicit-drugs-at-an-annual-nocturnal-indoor-electronic-dance-music-event
#9
Paul Calle, Nora Sundahl, Kristof Maudens, Sarah Mr Wille, Diederik Van Sassenbroeck, Koen De Graeve, Stefan Gogaert, Peter De Paepe, Dieter Devriese, Geert Arno, Peter Blanckaert
Introduction Medical problems are frequently encountered during electronic dance music (EDM) events. Problem There are uncertainties about the frequencies and severity of intoxications with different types of recreational drugs: ethanol, "classical" illicit party drugs, and new psychoactive substances (NPS). METHODS: Statistical data on the medical problems encountered during two editions of an indoor electronic dance event with around 30,000 attendants were retrieved from the Belgian Red Cross (Mechelen, Belgium) database...
December 29, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/29279645/methadone-gastrobezoar-in-a-psychiatric-patient-presented-in-coma
#10
Alexandra Gavala, Despoina Manou, Vasiliki Psalida, Maria Nystatzaki, Christos Mavrogiannis, George Alevizopoulos, Pavlos Myrianthefs
A 43-year-old psychiatric patient was transferred in coma and hypercapnic respiratory failure at the emergency department. He was intubated for airway protection and transferred to the Intensive Care Unit (ICU). Abdominal X-ray revealed a radiopaque mass; a pharmacobezoar was suspected and confirmed by gastroscopy; one large in the stomach fundus and a smaller one in the pylorus. Gastric lavage through the gastroscope and administration of gastro-kinetic drugs and laxatives were able to dilute the bezoars. Tablets retrieved from the stomach identified as methadone and toxicological tests of the gastric fluid confirmed the presence of methadone as the only organic chemical compound...
November 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29261653/key-scientific-issues-in-developing-drinking-water-guidelines-for-perfluoroalkyl-acids-contaminants-of-emerging-concern
#11
Gloria B Post, Jessie A Gleason, Keith R Cooper
Perfluoroalkyl acids (PFAAs), a group of synthetic organic chemicals with industrial and commercial uses, are of current concern because of increasing awareness of their presence in drinking water and their potential to cause adverse health effects. PFAAs are distinctive among persistent, bioaccumulative, and toxic (PBT) contaminants because they are water soluble and do not break down in the environment. This commentary discusses scientific and risk assessment issues that impact the development of drinking water guidelines for PFAAs, including choice of toxicological endpoints, uncertainty factors, and exposure assumptions used as their basis...
December 2017: PLoS Biology
https://www.readbyqxmd.com/read/29259595/current-demands-for-food-approved-liposome-nanoparticles-in-food-and-safety-sector
#12
REVIEW
Shruti Shukla, Yuvaraj Haldorai, Seung Kyu Hwang, Vivek K Bajpai, Yun Suk Huh, Young-Kyu Han
Safety of food is a noteworthy issue for consumers and the food industry. A number of complex challenges associated with food engineering and food industries, including quality food production and safety of the food through effective and feasible means can be explained by nanotechnology. However, nanoparticles have unique physicochemical properties compared to normal macroparticles of the same composition and thus could interact with living system in surprising ways to induce toxicity. Further, few toxicological/safety assessments have been performed on nanoparticles, thereby necessitating further research on oral exposure risk prior to their application to food...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29258177/in-vitro-toxicological-assessment-of-cylindrospermopsin-a-review
#13
REVIEW
Silvia Pichardo, Ana M Cameán, Angeles Jos
Cylindrospermopsin (CYN) is a cyanobacterial toxin that is gaining importance, owing to its increasing expansion worldwide and the increased frequency of its blooms. CYN mainly targets the liver, but also involves other organs. Various mechanisms have been associated with its toxicity, such as protein synthesis inhibition, oxidative stress, etc. However, its toxic effects are not yet fully elucidated and additional data for hazard characterization purposes are required. In this regard, in vitro methods can play an important role, owing to their advantages in comparison to in vivo trials...
December 16, 2017: Toxins
https://www.readbyqxmd.com/read/29247931/contact-with-a-glyphosate-based-herbicide-has-long-term-effects-on-the-activity-and-foraging-of-an-agrobiont-wolf-spider
#14
Julia E Behrend, Ann L Rypstra
Animals that live in conventional agroecosystems must cope with a variety of anthropogenic chemicals. Most of the focus of toxicology is on lethality, deformities, or short-term shifts in behavior. However, for animals that succeed in spite of their exposure, it is important to determine if long-term changes are brought on by their experience. We tested the hypothesis that contact with a commercial formulation of a glyphosate-based herbicide would affect the behavior of subsequent instars in the wolf spider, Pardosa milvina, a species that thrives in the agroecosystems of eastern United States...
December 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29238874/bacteria-mediated-phthalic-acid-esters-degradation-and-related-molecular-mechanisms
#15
REVIEW
Lei Ren, Zhong Lin, Hongming Liu, Hanqiao Hu
Phthalic acid esters (PAEs) have long been known as the most widely used plasticizer with a broad range of industrial application. PAEs are ubiquitous in different environments and our daily life due to their large and widespread application. Recent PAEs research mainly focused on their environmental fate (including leaching, migration, transformation) and toxicology and risk assessment. With the comprehensive recognition of their potential hazard, the elimination of PAEs has attracted worldwide concerns. Although many factors may contribute to the degradation of PAEs, the dominant role of biodegradation was widely reported...
December 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29216524/multiple-fatalities-in-the-north-of-england-associated-with-synthetic-fentanyl-analogue-exposure-detection-and-quantitation-a-case-series-from-early-2017
#16
Laura Hikin, Paul R Smith, Eleanor Ringland, Simon Hudson, Stephen R Morley
BACKGROUND: Synthetic fentanyl analogues are highly potent opioid drugs which have no pharmaceutical use in humans. We detected the synthetic fentanyl analogues; carfentanil, butyryl fentanyl, fluorobutyrylfentanyl, furanylfentanyl, and alfentanil as well as fentanyl itself in 25 cases in early 2017. There have been no previous reports of synthetic fentanyl deaths in the United Kingdom (UK). METHODS: Cases in which the history clearly stated drug use but where a post mortem blood morphine concentration was lower than would be expected to explain the sudden death, were referred for further analysis by high resolution accurate mass (HRAM) mass spectrometry...
November 29, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29209970/haze-and-health-impacts-in-asean-countries-a-systematic-review
#17
Logaraj Ramakreshnan, Nasrin Aghamohammadi, Chng Saun Fong, Awang Bulgiba, Rafdzah Ahmad Zaki, Li Ping Wong, Nik Meriam Sulaiman
Seasonal haze episodes and the associated inimical health impacts have become a regular crisis among the ASEAN countries. Even though many emerging experimental and epidemiological studies have documented the plausible health effects of the predominating toxic pollutants of haze, the consistency among the reported findings by these studies is poorly understood. By addressing such gap, this review aimed to critically highlight the evidence of physical and psychological health impacts of haze from the available literature in ASEAN countries...
December 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29207355/environmental-pollution-and-health-hazards-from-distillery-wastewater-and-treatment-approaches-to-combat-the-environmental-threats-a-review
#18
REVIEW
Pankaj Chowdhary, Abhay Raj, Ram Naresh Bharagava
Distillery industries are the key contributor to the world's economy, but these are also one of the major sources of environmental pollution due to the discharge of a huge volume of dark colored wastewater. This dark colored wastewater contains very high biological oxygen demand, chemical oxygen demand, total solids, sulfate, phosphate, phenolics and various toxic metals. Distillery wastewater also contains a mixture of organic and inorganic pollutants such as melanoidins, di-n-octyl phthalate, di-butyl phthalate, benzenepropanoic acid and 2-hydroxysocaproic acid and toxic metals, which are well reported as genotoxic, carcinogenic, mutagenic and endocrine disrupting in nature...
November 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/29202434/cypermethrin-induced-toxicities-in-fish-and-adverse-health-outcomes-its-prevention-and-control-measure-adaptation
#19
REVIEW
Sana Ullah, Amina Zuberi, Mahmoud Alagawany, Mayada Ragab Farag, Maryam Dadar, Kumaragurubaran Karthik, Ruchi Tiwari, Kuldeep Dhama, Hafiz M N Iqbal
Pesticides are being widely employed in the modern agriculture, though in different quantities, across the globe. Although it is useful for crops yield enhancement, however, there are the serious environment, health and safety related concerns for aquatic and terrestrial living biomes that include humans, animals, and plants. Various in practice and emerging pesticides adversely affect the survival, development and biological systems stability. Several research efforts have been made to highlight the bio-safety and toxicological features of toxicants through risk assessment studies using different animal models, e...
December 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29202272/fish-as-a-model-to-assess-chemical-toxicity-in-bone
#20
REVIEW
Ignacio Fernández, Paulo J Gavaia, Vincent Laizé, M Leonor Cancela
Environmental toxicology has been expanding as growing concerns on the impact of produced and released chemical compounds over the environment and human health are being demonstrated. Among the toxic effects observed in organisms exposed to pollutants, those affecting skeletal tissues (osteotoxicity) have been somehow overlooked in comparison to hepato-, immune-, neuro- and/or reproductive toxicities. Nevertheless, sub-lethal effects of toxicants on skeletal development and/or bone maintenance may result in impaired growth, reduced survival rate, increased disease susceptibility and diminished welfare...
January 2018: Aquatic Toxicology
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