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https://www.readbyqxmd.com/read/27924458/retraction-note-to-lead-poisoning-in-nile-tilapia-oreochromis-niloticus-oxidant-and-antioxidant-relationship
#1
Mahmoud Tanekhy
No abstract text is available yet for this article.
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27924330/access-to-functionalized-thienopyridines-via-a-reagent-capsule-assisted-coupling-thiolation-and-cyclization-cascade-sequence
#2
Jialing Cai, Shuo Huang, Ruenfa He, Lu Chen, Donghan Chen, Shaohua Jiang, Bin Li, Yibiao Li
Thienopyridines and related heterocycles were prepared in a straightforward manner in moderate to good yields and under mild conditions by palladium-catalysed cross-coupling of ortho-fluorinated iodopyridines and terminal alkynes, followed by a reagent-capsule-assisted thiolation cyclization process. By applying paraffin wax capsules to prevent catalyst poisoning and undesired side reactions, the separation and purification processes were reduced.
December 7, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27923877/poison-and-alarm-the-asian-hornet-vespa-velutina-uses-sting-venom-volatiles-as-alarm-pheromone
#3
Ya-Nan Cheng, Ping Wen, Shi-Hao Dong, Ken Tan, James C Nieh
In colonial organisms, alarm pheromones can provide a key fitness advantage by enhancing colony defense and warning of danger. Learning which species use alarm pheromone and the key compounds involved therefore enhances our understanding of how this important signal has evolved. However, our knowledge of alarm pheromones is more limited in the social wasps and hornets as compared to the social bees and ants. Vespa velutina is an economically important and widespread hornet predator that attacks humans and honey bees...
December 6, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27923269/what-must-be-done-to-prevent-another-humidifier-disinfectant-disaster
#4
Jong-Hyeon Lee
The humidifier disinfectant disaster (HDD) was not a simple poisoning accident by biocides, but a singular disaster in history created by chemicals in household products. This disaster was a result of the failure of a system for the management of chemical and product safety. Since the management authority for chemical usage safety is different from those for chemical safety in products, many blind areas for chemical safety management in products still remain. The 'Act on the Registration and Evaluation, etc...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27922764/comparison-of-abuse-suspected-suicidal-intent-and-fatalities-related-to-the-7-day-buprenorphine-transdermal-patch-versus-other-opioid-analgesics-in-the-national-poison-data-system
#5
Paul M Coplan, Nelson E Sessler, Venkatesh Harikrishnan, Richa Singh, Charles Perkel
OBJECTIVE: Prescription opioid related abuse, suicide and death are significant public health problems. This study compares rates of poison center calls categorized as intentional abuse, suspected suicidal intent or fatality for the 7-day buprenorphine transdermal system/patch (BTDS) with other extended-release and long-acting (ER/LA) opioids indicated for chronic pain. DESIGN: Retrospective 24-month cohort study using National Poison Data System data from July 2012 through June 2014...
December 6, 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27921441/re-methemoglobin-measurements-are-underestimated-by-the-radical-7-co-oximeter-experience-from-a-series-of-moderate-to-severe-propanil-poisonings
#6
Nasim Zamani, Hossein Hassanian-Moghaddam
No abstract text is available yet for this article.
December 6, 2016: Clinical Toxicology
https://www.readbyqxmd.com/read/27921219/nationwide-scorpion-exposures-reported-to-us-poison-control-centers-from-2005-to-2015
#7
A Min Kang, Daniel E Brooks
INTRODUCTION: Previous studies of scorpion envenomation in the United States (US) have focused on Arizona and the bark scorpion, Centruroides sculpturatus. Although many other scorpion species live in the US, information about envenomations in other states is lacking. METHODS: Nationwide scorpion exposures from 2005 to 2015 were analyzed using the National Poison Data System. RESULTS: Of the 185,402 total exposures, Arizona (68.2%), Texas (10...
December 5, 2016: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/27920011/the-interwoven-history-of-mercury-poisoning-in-ontario-and-japan
#8
Adam Mosa, Jacalyn Duffin
No abstract text is available yet for this article.
December 5, 2016: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/27919472/the-value-of-a-poison-control-center-in-preventing-unnecessary-emergency-department-visits-and-hospital-charges-a-multi-year-analysis
#9
Casey R Tak, Marty C Malheiro, Heather K W Bennett, Barbara I Crouch
OBJECTIVE: The purpose of this study is to determine the economic value of the Utah Poison Control Center (UPCC) by examining its contribution to the reduction of unnecessary emergency department (ED) visits and associated charges across multiple years. METHODS: A multi-year (2009-2014) analysis of cross-sectional data was performed. Callers were asked what they would do for a poison emergency if the UPCC was not available. Healthcare charges for ED visits averted were calculated according to insurance status using charges obtained from a statewide database...
November 22, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27919412/anti-nmda-a-nmdar-receptor-encephalitis-related-to-acute-consumption-of-metamphetamine-relevance-of-differential-diagnosis
#10
O Iriondo, J Zaldibar-Gerrikagoitia, T Rodríguez, J M García, L Aguilera
A 19-year-old male came to the Emergency Room of our hospital due to an episode of dystonic movements and disorientation 4 days after consuming methamphetamine, which evolved to a catatonic frank syndrome and eventually to status epilepticus. Definitive diagnosis was anti-NMDA receptor encephalitis, an acute inflammation of the limbic area of autoimmune origin in which early diagnosis and treatment are key elements for the final outcome. In this case, initial normal tests and previous methamphetamine poisoning delayed diagnosis, because inhaled-methamphetamine poisoning causes similar clinical symptoms to anti-NMDA receptor encephalitis...
December 2, 2016: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/27919216/topoisomerase-ii-inhibitors-and-poisons-and-the-influence-of-cell-cycle-checkpoints
#11
Nicholas D Arcy, Brian Gabrielli
Interactions between the decatenation checkpoint and Topoisomerase II (TopoII) are vital for maintaining integrity of the genome. Agents that target this enzyme have been in clinical use in cancer therapy for over 30 years with great success. The types of compounds that have been developed to target TopoII are broadly divided into poisons and catalytic inhibitors. The TopoII poisons are in clinical use as anti-cancer therapies, although in common to most chemotherapeutic agents, they display considerable normal tissue toxicity...
December 5, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27919185/modeling-the-effect-of-succimer-dmsa-dimercaptosuccinic-acid-chelation-therapy-in-patients-poisoned-by-lead
#12
Jan C H van Eijkeren, J Daniël N Olie, Sally M Bradberry, J Allister Vale, Irma de Vries, Harvey J Clewell, Jan Meulenbelt, Claudine C Hunault
CONTEXT: Kinetic models could assist clinicians potentially in managing cases of lead poisoning. Several models exist that can simulate lead kinetics but none of them can predict the effect of chelation in lead poisoning. Our aim was to devise a model to predict the effect of succimer (dimercaptosuccinic acid; DMSA) chelation therapy on blood lead concentrations. MATERIALS AND METHODS: We integrated a two-compartment kinetic succimer model into an existing PBPK lead model and produced a Chelation Lead Therapy (CLT) model...
December 5, 2016: Clinical Toxicology
https://www.readbyqxmd.com/read/27919173/carbon-monoxide-poisoning-during-camping-in-korea
#13
Youn-Jung Kim, Chang Hwan Sohn, Bum Jin Oh, Kyoung Soo Lim, Won Young Kim
OBJECTIVE: The aim of this study was to evaluate the epidemiology and characteristics of unintentional carbon monoxide (CO) poisoning during camping in Korea. METHODS: We performed a retrospective observational study on patients with unintentional camping-related CO poisoning who were admitted to the emergency department (ED) from 1 January 2010 to 31 December 2014. News reports about incidents of camping-related CO poisoning were collected using news search engines...
December 5, 2016: Inhalation Toxicology
https://www.readbyqxmd.com/read/27918014/trapping-of-gaseous-pollutants-on-defective-n-doped-graphene
#14
Dibyajyoti Ghosh, Swapan K Pati
The use of pristine as well as structurally modified two-dimensional materials to efficiently trap and separate various harmful gases from the atmosphere is an intensively explored field of current research. In this paper, we have computationally demonstrated the efficient trapping of several polar poisonous and greenhouse gases on top of different kinds of pyridinic/pyrrolic nitrogen-doped graphene sheets. van der Waals corrected Born-Oppenheimer molecular dynamics (BOMD) studies evidently demonstrate the trapping of the gas molecules on top of the defect-sites of the sheets at room-temperature...
December 5, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27917341/the-effect-of-n-acetyl-cysteine-nac-on-aluminum-phosphide-poisoning-inducing-cardiovascular-toxicity-a-case-control-study
#15
Fakhreddin Taghaddosinejad, Esmaeil Farzaneh, Mahdi Ghazanfari-Nasrabad, Nastaran Eizadi-Mood, Morteza Hajihosseini, Omid Mehrpour
BACKGROUND: Aluminum phosphide (AlP) is a very effective indoor and outdoor pesticide. We investigated the effects of N-acetyl cysteine (NAC) on the survival time, hemodynamics, and cardiac biochemical parameters at various time intervals in some cases of AlP poisoning. METHODS: This research was a case-control study to evaluate 63 AlP poisoned patients during 2010-2012. Patients with cardiovascular complications of AlP to be treated with intravenous NAC plus conventional treatment were considered as the case group and compared with patients who did not receive NAC...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916846/dehydropyrrolizidine-alkaloid-toxicity-cytotoxicity-and-carcinogenicity
#16
REVIEW
Bryan L Stegelmeier, Steven M Colegate, Ammon W Brown
Dehydropyrrolizidine alkaloid (DHPA)-producing plants have a worldwide distribution amongst flowering plants and commonly cause poisoning of livestock, wildlife, and humans. Previous work has produced considerable understanding of DHPA metabolism, toxicity, species susceptibility, conditions, and routes of exposure, and pathogenesis of acute poisoning. Intoxication is generally caused by contaminated grains, feed, flour, and breads that result in acute, high-dose, short-duration poisoning. Acute poisoning produces hepatic necrosis that is usually confirmed histologically, epidemiologically, and chemically...
November 29, 2016: Toxins
https://www.readbyqxmd.com/read/27916058/-advances-in-diagnosis-and-treatment-of-patients-with-mercury-poisoning-associated-glomerulonephropathy
#17
A B Qin, F D Zhou, M H Zhao
No abstract text is available yet for this article.
December 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27915048/protective-effects-of-green-tea-and-its-main-constituents-against-natural-and-chemical-toxins-a-comprehensive-review
#18
REVIEW
Maryam Rameshrad, Bibi Marjan Razavi, Hossein Hosseinzadeh
Toxins are natural or chemical poisonous substances with severe side effects on health. Humans are generally exposed by widespread toxic contaminations via air, soil, water, food, fruits and vegetables. Determining a critical antidote agent with extensive effects on different toxins is an ultimate goal for all toxicologists. Traditional medicine is currently perceived as a safe and natural approach against toxins. In this regard, we focused on the protective effects of green tea (Camellia sinensis) and its main components such as catechin, epicatechin, epicatechin gallate, gallocatechin, epigallocatechin and epigallocatechin gallate as a principal source of antioxidants against both natural and chemical toxins...
November 30, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27912864/clinical-and-epidemiological-aspects-of-scorpionism-in-the-world-a-systematic-review
#19
REVIEW
Maria S V Santos, Cláudio G L Silva, Basílio Silva Neto, Cícero R P Grangeiro Júnior, Victor H G Lopes, Antônio G Teixeira Júnior, Deryk A Bezerra, João V C P Luna, Josué B Cordeiro, Jucier Gonçalves Júnior, Marcos A P Lima
OBJECTIVE: Scorpion stings are registered worldwide, but the incidence and the features of the envenomations vary depending on the region. The aim of this review was to summarize the epidemiological, clinical, diagnostic, and therapeutic data worldwide regarding humans stung by scorpions. METHODS: A systematic review of the literature was conducted through the online databases of the Virtual Health Library (VHL), which hosts Medline and the Latin American and Caribbean Center on Health Sciences Informational (LILACS) database...
December 2016: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/27911816/rapid-emergence-and-mechanisms-of-resistance-by-u87-glioblastoma-cells-to-doxorubicin-in-an-in-vitro-tumor-microfluidic-ecology
#20
Jeonghun Han, Yukyung Jun, So Hyun Kim, Hong-Hoa Hoang, Yeonjoo Jung, Suyeon Kim, Jaesang Kim, Robert H Austin, Sanghyuk Lee, Sungsu Park
In vitro prediction of the probable rapid emergence of resistance to a drug in tumors could act to winnow out potential candidates for further costly development. We have developed a microfluidic device consisting of ∼500 hexagonal microcompartments that provides a complex ecology with wide ranges of drug and nutrient gradients and local populations. This ecology of a fragmented metapopulation induced the drug resistance in stage IV U87 glioblastoma cells to doxorubicin in 7 d. Exome and transcriptome sequencing of the resistant cells identified mutations and differentially expressed genes...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
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