keyword
MENU ▼
Read by QxMD icon Read
search

toxicology emergencies

keyword
https://www.readbyqxmd.com/read/28535130/home-manufacture-of-drugs-an-online-investigation-and-a-toxicological-reality-check-of-online-discussions-on-drug-chemistry
#1
Evelyn Hearne, Emanuele Amorim Alves, Marie Claire Van Hout, Jean-Paul C Grund
Emerging trends in market dynamics and the use of new psychoactive substances are both a public health concern and a complex regulatory issue. One novel area of investigation is the availability of homemade opioids, amphetamines and dissociatives, and the potential fueling of interest in clandestine home manufacture of drugs via the Internet. We illustrate here how online communal folk pharmacology of homemade drugs on drug website forums may actually inform home manufacture practices or contribute to the reduction of harms associated with this practice...
May 23, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28533120/evaluation-of-new-chemical-entities-as-substrates-of-liver-transporters-in-the-pharmaceutical-industry-response-to-regulatory-requirements-and-future-steps
#2
Noriko Okudaira
This article discusses the evaluation of drug candidates as hepatic transporter substrates. Recently, research on the applications of hepatic transporters in the pharmaceutical industry has improved to meet the requirements of the regulatory guidelines for the evaluation of drug interactions. To identify the risk of transporter-mediated drug-drug interactions (DDIs) at an early stage of drug development, we employed a strategy of reviewing the in vivo animal pharmacokinetics and tissue distribution data obtained in the discovery stage together with the in vitro data obtained for regulatory submission...
May 19, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28525814/risk-assessment-of-triclosan-in-the-global-environment-using-a-probabilistic-approach
#3
Jiahua Guo, Hisato Iwata
The occurrence of antimicrobial agent triclosan (TCS) in the global aquatic and terrestrial environment is an emerging concern. While risk assessment for TCS is available in certain countries, no studies have attempted to assess the risk of TCS worldwide. This could be due to lack of method to characterize the global exposure. The present study therefore proposed a probabilistic-based approach to approximate the percent-ranked measured environmental concentrations (MECs) by estimating exposure concentration distribution (ECD) for different environmental compartments on a global scale, incorporating approximate 1200 single MECs...
May 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28515485/e-cigarettes-induce-toxicological-effects-that-can-raise-the-cancer-risk
#4
Donatella Canistro, Fabio Vivarelli, Silvia Cirillo, Clara Babot Marquillas, Annamaria Buschini, Mirca Lazzaretti, Laura Marchi, Vladimiro Cardenia, Maria Teresa Rodriguez-Estrada, Maura Lodovici, Caterina Cipriani, Antonello Lorenzini, Eleonora Croco, Silvia Marchionni, Paola Franchi, Marco Lucarini, Vincenzo Longo, Clara Maria Della Croce, Andrea Vornoli, Annamaria Colacci, Monica Vaccari, Andrea Sapone, Moreno Paolini
Electronic cigarettes (e-cigs) are devices designed to deliver nicotine in a vaping solution rather than smoke and without tobacco combustion. Perceived as a safer alternative to conventional cigarettes, e-cigs are aggressively marketed as lifestyle-choice consumables, thanks to few restrictions and a lack of regulatory guidelines. E-cigs have also gained popularity among never-smokers and teenagers, becoming an emergent public health issue. Despite the burgeoning worldwide consumption of e-cigs, their safety remains largely unproven and it is unknown whether these devices cause in vivo toxicological effects that could contribute to cancer...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28510082/biomedical-applications-of-nanotechnology
#5
REVIEW
Ana P Ramos, Marcos A E Cruz, Camila B Tovani, Pietro Ciancaglini
The ability to investigate substances at the molecular level has boosted the search for materials with outstanding properties for use in medicine. The application of these novel materials has generated the new research field of nanobiotechnology, which plays a central role in disease diagnosis, drug design and delivery, and implants. In this review, we provide an overview of the use of metallic and metal oxide nanoparticles, carbon-nanotubes, liposomes, and nanopatterned flat surfaces for specific biomedical applications...
April 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28506719/two-fatalities-associated-with-synthetic-opioids-ah-7921-and-mt-45
#6
Helena Fels, Julia Krueger, Hans Sachs, Frank Musshoff, Matthias Graw, Gabriele Roider, Andreas Stoever
In this study, two fatalities associated with the synthetic opioids AH-7921 and MT-45 are reported. Within the last few years, both compounds have emerged on the recreational drug market and are sold as "research chemicals" on the internet. In the first case, a 22-year-old woman was found dead in the bedroom of her apartment by two of her friends. A plastic bag labeled "AH-7921" was found in the apartment and the two friends stated that the deceased had consumed AH-7921 prior to her death. The woman was a known drug addict...
April 15, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28499580/transient-receptor-potential-trp-channels-as-molecular-targets-in-lung-toxicology-and-associated-diseases
#7
REVIEW
Alexander Dietrich, Dirk Steinritz, Thomas Gudermann
The lungs as the gateways of our body to the external environment are essential for gas exchange. They are also exposed to toxicants from two sides, the airways and the vasculature. Apart from naturally produced toxic agents, millions of human made chemicals were produced since the beginning of the industrial revolution whose toxicity still needs to be determined. While the knowledge about toxic substances is increasing only slowly, a paradigm shift regarding the proposed mechanisms of toxicity at the plasma membrane emerged...
April 26, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28486906/safety-and-toxicological-considerations-of-nanomedicines-the-future-directions
#8
Parmi Patel, Jigna Shah
Nanomedicine, an emerging nanotechnology, imparts special biological features due to their quantum size and is a promising candidate for targeted drug delivery. At present, in spite of its novel applications in medical sciences, certain existing gaps still needs to be addressed such as fate of nanoparticles and its toxicity assessment on human health. Behaviour of the entities post human body exposure and its deposition up to certain extent are some of the crucial factors to be considered for a successful treatment approach...
May 9, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28481423/the-pig-a-gene-mutation-assay-in-mice-and-human-cells-a-review
#9
Ann-Karin Olsen, Stephen D Dertinger, Christopher T Krüger, Dag M Eide, Christine Instanes, Gunnar Brunborg, Andrea Hartwig, Anne Graupner
This MiniReview describes the principle of mutation assays based on the endogenous Pig-a gene and summarizes results for two species of toxicological interest, mice and humans. The work summarized here largely avoids rat-based studies, as are summarized elsewhere. The Pig-a gene mutation assay has emerged as a valuable tool for quantifying in vivo and in vitro mutational events. The Pig-a locus is located at the X-chromosome, giving the advantage that one inactivated allele can give rise to a mutated phenotype, detectable by multi-colour flow cytometry...
May 8, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28475417/challenges-and-opportunities-for-the-future-of-monoclonal-antibody-development-improving-safety-assessment-and-reducing-animal-use
#10
Fiona Sewell, Kathryn Chapman, Jessica Couch, Maggie Dempster, Shawn Heidel, Lise Loberg, Curtis Maier, Tim K McLachlan, Marque Todd, Jan Willem van der Laan
The market for biotherapeutic monoclonal antibodies (mAbs) is large and is growing rapidly. However, attrition poses a significant challenge for the development of mAbs, and for biopharmaceuticals in general, with large associated costs in resource and animal use. Termination of candidate mAbs may occur due to poor translation from preclinical models to human safety. It is critical that the industry addresses this problem in order to maintain productivity. Though attrition poses a significant challenge for pharmaceuticals in general, there are specific challenges related to the development of antibody-based products...
May 5, 2017: MAbs
https://www.readbyqxmd.com/read/28474816/the-rise-of-glyphosate-and-new-opportunities-for-biosentinel-early-warning-studies
#11
Zoe Kissane, Jill M Shephard
Glyphosate has become the most commonly used herbicide worldwide, with a reputation of being environmentally benign, non-toxic and safe to wildlife and humans. However, studies have indicated its toxicity has been underestimated, and that its persistence in the environment is greater than once thought. Its actions as a neurotoxin and endocrine disruptor indicate its potential to act in similar ways to persistent organic pollutants (POPs) such as the organochlorine (OC) chemicals dichlorodiphenyltrichloroethane (DDT) and dioxin...
May 5, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28472358/metabolic-profile-determination-of-nbome-compounds-using-human-liver-microsomes-and-comparison-with-findings-in-authentic-human-blood-and-urine
#12
Keith-Dane H Temporal, Karen S Scott, Amanda L A Mohr, Barry K Logan
The emergence of novel psychoactive substances (NPS) such as hallucinogenic NBOMes (N-methoxybenzyl derivatives of 2C phenethylamines) in the past few years into the recreational drug market has introduced various challenges in forensic analytical toxicology in regard to adequate and timely detection of these compounds. This is especially true in samples from individuals who have experienced severe and fatal intoxications. The aim of this research was to identify the major Phase I metabolites of selected NBOMe compounds to generate a predicted human metabolic pathway of these substances...
May 3, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28459969/reports-of-adverse-events-associated-with-use-of-novel-psychoactive-substances-2013-2016-a-review
#13
Barry K Logan, Amanda L A Mohr, Melissa Friscia, Alex J Krotulski, Donna M Papsun, Sherri L Kacinko, Jeri D Ropero-Miller, Marilyn A Huestis
Novel psychoactive substances (NPS) represent significant analytical and interpretive challenges to forensic and clinical toxicologists. Timely access to case reports and reports of adverse incidents of impairment or toxicity is imperative to clinical diagnosis and treatment, as well as to interpretation of forensic results. Delays in identifying the presence of a novel intoxicating agent have significant consequences for public health and public safety. Adverse effects of intoxications with novel cannabinoids, stimulants, hallucinogens, benzodiazepines and opioids spanning January 2013 through December 2016 as reported in emergency departments, death investigations, impaired driving cases and other forensic contexts are the subject of this review...
April 28, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28457555/polycyclic-aromatic-hydrocarbons-pahs-at-the-gulf-of-kutch-gujarat-india-occurrence-source-apportionment-and-toxicity-of-pahs-as-an-emerging-issue
#14
Rahul K Rajpara, Dushyant R Dudhagara, Jwalant K Bhatt, Haren B Gosai, Bharti P Dave
The present study extrapolates the assessment and characterization of a barely studied region, the Gulf of Kutch, (near Jamnagar), Gujarat, India, in terms of PAH exposure, adverse effects caused by them, and various toxicological indices showing the catastrophic effects of their elevated concentrations. ΣPAH concentration in the site ranged from 118,280 to 1,099,410ngg(-1) dw, with a predominance of 2-3-ring PAHs (79.09%) as compared to 4-5- and 6-ring PAHs (20.91%). The concentrations of carcinogenic PAHs were found to be between 8120 and 160,000ngg(-1) dw, with a mean of 63,810ngg(-1) dw, which is much higher than normal acceptable values...
April 27, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28450172/recent-advances-in-use-of-silver-nanoparticles-as-antimalarial-agents
#15
REVIEW
Mahendra Rai, Avinash P Ingle, Priti Paralikar, Indarchand Gupta, Serenella Medici, Carolina A Santos
Malaria is one of the most common infectious diseases, which has become a great public health problem all over the world. Ineffectiveness of available antimalarial treatment is the main reason behind its menace. The failure of current treatment strategies is due to emergence of drug resistance in Plasmodium falciparum and drug toxicity in human beings. Therefore, the development of novel and effective antimalarial drugs is the need of the hour. Considering the huge biomedical applications of nanotechnology, it can be potentially used for the malarial treatment...
April 24, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28447134/-poisonings-in-germany-poisons-centres-medical-management-and-national-monitoring
#16
REVIEW
Herbert Desel, Helmut Hentschel, Andreas Stürer
BACKGROUND: Illnesses caused by exposure to extracorporeal artificial substances play a major role in emergency medicine, family medicine, and environmental medicine. OBJECTIVE: The current situation of medical poisoning management and national reporting of poisonings in Germany are described. MATERIALS UND METHODS: The information and data presented here are derived from a literature review and from stakeholder interviews. RESULTS AND CONCLUSION: Eight poison centres (PCs) offer consultation supporting the diagnosis and treatment of poisoning cases in Germany today...
April 26, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28442873/anagen-effluvium-following-acute-colchicine-poisoning
#17
Andrea Combalia, Carola Baliu-Piqué, Adriana Fortea, Juan Ferrando
We present a case of a 17-year-old girl admitted to the Psychiatric Department recovering from a suicide attempt with colchicine. One week after poisoning, a sudden onset of hair loss was observed. Positive hair pull test and trichoscopy demonstrated the presence of anagen hairs with pigmented long roots covered by the root sheaths. Colchicine poisoning is an uncommon, but potentially life-threatening toxicologic emergency. An overdose of colchicine inhibits cell division, and thus the most affected organs are those which have a high rate of cell turnover...
October 2016: International Journal of Trichology
https://www.readbyqxmd.com/read/28437641/human-neuronal-cell-based-assay-a-new-in-vitro-model-for-toxicity-evaluation-of-ciguatoxin
#18
Teresa Coccini, Francesca Caloni, Uliana De Simone
Ciguatoxins (CTXs) are emerging marine neurotoxins representing the main cause of ciguatera fish poisoning, an intoxication syndrome which configures a health emergency and constitutes an evolving issue constantly changing due to new vectors and derivatives of CTXs, as well as their presence in new non-endemic areas. The study applied the neuroblastoma cell model of human origin (SH-SY5Y) to evaluate species-specific mechanistic information on CTX toxicity. Metabolic functionality, cell morphology, cytosolic Ca(2+)i responses, neuronal cell growth and proliferation were assessed after short- (4-24h) and long-term exposure (10days) to P-CTX-3C...
April 14, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28435767/green-toxicology-a-strategy-for-sustainable-chemical-and-material-development
#19
EDITORIAL
Sarah E Crawford, Thomas Hartung, Henner Hollert, Björn Mathes, Bennard van Ravenzwaay, Thomas Steger-Hartmann, Christoph Studer, Harald F Krug
Green Toxicology refers to the application of predictive toxicology in the sustainable development and production of new less harmful materials and chemicals, subsequently reducing waste and exposure. Built upon the foundation of "Green Chemistry" and "Green Engineering", "Green Toxicology" aims to shape future manufacturing processes and safe synthesis of chemicals in terms of environmental and human health impacts. Being an integral part of Green Chemistry, the principles of Green Toxicology amplify the role of health-related aspects for the benefit of consumers and the environment, in addition to being economical for manufacturing companies...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28430301/towards-a-bioengineered-kidney-recellularization-strategies-for-decellularized-native-kidney-scaffolds
#20
Michele Fedecostante, Oana G Onciu, Koen G C Westphal, Rosalinde Masereeuw
Patients with end-stage renal disease often undergo dialysis as a partial substitute for kidney function while waiting for their only treatment option: a kidney transplant. Several research directions emerged for alternatives in support of the ever-growing numbers of patients. Recent years brought big steps forward in the field, with researchers questioning and improving the current dialysis devices as well as moving towards the design of a bioengineered kidney. Whole-organ engineering is also being explored as a possibility, making use of animal or human kidney scaffolds for engineering a transplantable organ...
May 9, 2017: International Journal of Artificial Organs
keyword
keyword
81331
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"