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https://www.readbyqxmd.com/read/28387073/-electronic-cigarette-state-of-the-science-about-toxicological-aspects
#1
REVIEW
M Deville, C Charlier
Electronic cigarettes (e-cigarettes) are presented as a healthier alternative to tobacco smoking. They are designed to contain a solution which is heated to produce an aerosol inhaled by the user. The liquid is mainly composed of propylene glycol, glycerol, flavours and, in some cases, nicotine. Except for nicotine, which can be fatal when ingested at high dose, these components are generally considered as safe. However, the potential effect of long term exposure to inhaled propylene glycol is unknown at this time...
January 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28328690/the-first-use-of-pralidoxime-in-a-child-with-rivastigmine-poisoning
#2
Eylem Ulaş Saz, Ali Yurtseven, Mehmet Arda Kilinç, Yusuf Sari, Hasan Ağin
The aim of this report is to describe the successful use of pralidoxime in a pediatric patient who accidentally ingested 12 mg of rivastigmine and presented to the emergency department with weakness, drowsiness, hyporeactivity to environmental stimuli, and full cholinergic syndrome. CASE: The patient presented to the emergency department 2 hours after a suspected ingestion of rivastigmine. He was sleepy but oriented and cooperative, hypotonic, and hyporeflexic and has a Glasgow Coma Scale score of 13 (E3M6V4)...
March 21, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28271317/cholinergic-anti-inflammatory-pathway-does-not-contribute-to-prevention-of-ulcerative-colitis-by-novel-indoline-carbamates
#3
Helena Shifrin, Odelia Mouhadeb, Nathan Gluck, Chen Varol, Marta Weinstock
Indoline carbamates, AN680 and AN917 decrease cytokines, TNF-α and IL-6 in peritoneal macrophages activated by lipopolysaccharide (LPS) and in mouse tissues after LPS injection. They prevent nuclear translocation of nuclear factor κB (NF-κB) and activator protein 1. Only AN917 inhibits cholinesterase (ChE) at relevant concentrations. ChE inhibitors decrease NF-κB by activating α7 nicotinic acetylcholine receptors (α7nAChR). The current study compared the effect of rivastigmine, a ChE inhibitor, AN680 and AN917 on ulcerative colitis induced in mice by ingestion of dextran sodium sulfate (4...
March 7, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28194215/accidental-ingestion-of-e-cigarette-liquid-nicotine-in-a-15-month-old-child-an-infant-mortality-case-of-nicotine-intoxication
#4
An Deok Seo, Dong Chan Kim, Hee Joon Yu, Min Jae Kang
Electronic cigarettes are novel tobacco products that are frequently used these days. The cartridge contains liquid nicotine and accidental poisoning, even with a small oral dose, endangers children. We present here a mortality case of a 15-month-old child who ingested liquid nicotine mistaking it for cold medicine. When the emergency medical technicians arrived, she was found to have pulseless electrical activity. Spontaneous circulation was restored after approximately 40 minutes of cardiopulmonary resuscitation...
December 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28150179/detoxification-and-elimination-of-nicotine-by-nectar-feeding-birds
#5
S Lerch-Henning, E E Du Rand, S W Nicolson
Many dilute nectars consumed by bird pollinators contain secondary metabolites, potentially toxic chemicals produced by plants as defences against herbivores. Consequently, nectar-feeding birds are challenged not only by frequent water excess, but also by the toxin content of their diet. High water turnover, however, could be advantageous to nectar consumers by enabling them to excrete secondary metabolites or their transformation products more easily. We investigated how the alkaloid nicotine, naturally present in nectar of Nicotiana species, influences osmoregulation in white-bellied sunbirds Cinnyris talatala and Cape white-eyes Zosterops virens...
February 1, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28101715/cortex-and-amygdala-dependent-learning-and-nicotinic-acetylcholine-receptor-gene-expression-is-severely-impaired-in-mice-orally-treated-with-alcl3
#6
Syeda Mehpara Farhat, Aamra Mahboob, Touqeer Ahmed
Recent industrialization has increased human exposure to bio-available aluminum (Al). If more Al enters the brain than leaves, Al concentration will rise in the brain leading to neurodegenerative disorders. The aim of the present study was to determine Al concentration, neurodegeneration, and nicotinic acetylcholine receptor (nAChR) gene expression in the cortex and amygdala after oral ingestion of Al salt. The effect of Al on cortex- and amygdala-dependent learning and memory functions was also assessed. Mice were given AlCl3 (250 mg/kg) in drinking water for 42 days...
January 18, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28039423/relative-toxicity-of-two-aphicides-to-hippodamia-convergens-coleoptera-coccinellidae-implications-for-integrated-management-of-sugarcane-aphid-melanaphis-sacchari-hemiptera-aphididae
#7
Felipe Colares, J P Michaud, Clint L Bain, Jorge B Torres
Flupyradifurone and sulfoxaflor present novel insecticide chemistries with particular efficacy against aphids, and the recent emergence of sugarcane aphid, Melanaphis sacchari (Zehntner), as a pest of sorghum in the United States has resulted in their widespread use. We examined their toxicity to Hippodamia convergens Guerin-Meneville, an important aphid biocontrol agent. We exposed beetles to topical applications of the field rate (FR) of these insecticides, fed them contaminated food (eggs of Ephestia kuehniella Zeller), and gave first-instar larvae 24-h exposures to leaf residues...
February 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27988056/unintentional-pediatric-ingestion-of-electronic%C3%A2-cigarette-nicotine-refill-liquid-necessitating-intubation
#8
Matthew J Noble, Beck Longstreet, Robert G Hendrickson, Roy Gerona
Liquid nicotine used in electronic cigarette devices is highly concentrated, unreliably packaged, and poorly regulated. We present a case report of a 6-year-old female who developed severe toxicity and required intubation after an unintentional oral ingestion of approximately 703 mg (35 mg/kg) of liquid nicotine, with accompanying serum and urine concentrations of nicotine and its metabolites. Analysis of the ingested liquid suggests a nicotine concentration of 140.6 mg/mL in the purchased commercial product, or 234% of its labeled concentration...
January 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27894020/the-anatomical-mummies-of-mombello-detection-of-cocaine-nicotine-and-caffeine-in-the-hair-of-psychiatric-patients-of-the-early-20th-century
#9
Frank Musshoff, Helena Fels, Alberto Carli, Dario Piombino-Mascali
The Mombello Psychiatric Hospital in Limbiate, near Milan, replaced the old Senavra Hospital as the Psychiatric Hospital for the Province of Milan in the 19th century. During the early 20th century, bodies of several Mombello patients were dissected and preserved by Giuseppe Paravicini, an anatomist who operated within the asylum. The aim of the present study was to examine and memorialize this important assemblage. To this end, we were allowed to sample the head hair of six such preparations for toxicological analysis...
November 14, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27831921/the-effects-of-smoking-and-nicotine-ingestion-on-exercise-heat-tolerance
#10
Amit Druyan, Danit Atias, Itay Ketko, Yoav Cohen-Sivan, Yuval Heled
BACKGROUND: Smoking has a thermogenic effect and is associated with low physical performance. Nevertheless, a direct, quantitative effect of acute smoking on exercise heat tolerance has not been reported. METHODS: Sixteen healthy young male volunteers, eight cigarette smokers, and eight non-smokers participated in the study. All subjects performed a maximal oxygen consumption test (VO2max) and a standardized heat tolerance test (HTT) after at least 12 h without smoking under the following conditions: no nicotine exposure, 10 min after nicotine exposure (2 mg nicotine lozenge), and 10 min after smoking two cigarettes (0...
March 1, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/27637361/tracking-dabbing-using-search-query-surveillance-a-case-study-in-the-united-states
#11
Zhu Zhang, Xiaolong Zheng, Daniel Dajun Zeng, Scott J Leischow
BACKGROUND: Dabbing is an emerging method of marijuana ingestion. However, little is known about dabbing owing to limited surveillance data on dabbing. OBJECTIVE: The aim of the study was to analyze Google search data to assess the scope and breadth of information seeking on dabbing. METHODS: Google Trends data about dabbing and related topics (eg, electronic nicotine delivery system [ENDS], also known as e-cigarettes) in the United States between January 2004 and December 2015 were collected by using relevant search terms such as "dab rig...
September 16, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27613945/caffeine-concentrations-in-coffee-tea-chocolate-and-energy-drink-flavored-e-liquids
#12
Joseph G Lisko, Grace E Lee, J Brett Kimbrell, Michael E Rybak, Liza Valentin-Blasini, Clifford H Watson
INTRODUCTION: Most electronic cigarettes (e-cigarettes) contain a solution of propylene glycol/glycerin and nicotine, as well as flavors. E-cigarettes and their associated e-liquids are available in numerous flavor varieties. A subset of the flavor varieties include coffee, tea, chocolate, and energy drink, which, in beverage form, are commonly recognized sources of caffeine. Recently, some manufacturers have begun marketing e-liquid products as energy enhancers that contain caffeine as an additive...
July 25, 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/27535061/nicotine-consumption-may-lead-to-aseptic-loosening-in-proximal-mega-prosthetic-femoral-replacement
#13
Philip J F Leute, Isabel Hoffmann, Ahmed Hammad, Stefan Lakemeier, Hans-Michael Klinger, Mike H Baums
BACKGROUND: Aseptic loosening after total hip arthroplasty is likely related to nicotine ingestion. However, aseptic loosening as a direct consequence of smoking habits has not been described with regard to proximal mega-prosthetic femoral replacement. The aim of the present study was to evaluate the association between nicotine consumption and aseptic loosening rates after proximal mega-prosthetic femoral replacement. MATERIALS AND METHODS: A consecutive series of patients who received mega-prosthetic replacement of the proximal femur at our hospital between 2005 and 2015 were included...
August 17, 2016: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/27413679/potential-health-effects-of-electronic-cigarettes-a-systematic-review-of-case-reports
#14
REVIEW
My Hua, Prue Talbot
The health risks associated with electronic cigarettes (ECs) are largely unknown. The purpose of this systematic review was to evaluate published case reports that deal with health effects attributed to EC use. An Internet search was conducted to identify case reports dealing with the effects of EC use on health. Twenty-six case reports representing 27 individuals (one study contained reports for two individuals) were published between April 2012 and January 2016, and these were grouped into categories of effect according to their health outcomes...
December 2016: Preventive Medicine Reports
https://www.readbyqxmd.com/read/27238766/determination-of-nicotine-cotinine-and-trans-3-hydroxycotinine-using-lc-ms-ms-in-forensic-samples-of-a-nicotine-fatal-case-by-oral-ingestion-of-e-cigarette-liquid
#15
Gundong You, Jongsook Rhee, Yuran Park, Sunhye Park
Nicotine is a potent neurotoxin alkaloid and is used in e-cigarette liquid. The LC/MS/MS method was linear over 0.01-1.0 mg/L (r(2) = 0.992-0.995). Limit of detection and limit of quantitation were 0.001 mg/L (S/N = 3) and 0.003 (S/N = 10). The inaccuracy and imprecision were <13.2%. The recoveries were >99.3%. A 39-year-old dentist was found dead lying on the floor under the couch in his dental clinic. The concentration of nicotine, cotinine, and trans-3'-hydroxycotinine (heart blood/peripheral blood) was analyzed as follows: 87...
May 30, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27148536/consumption-of-substances-of-abuse-during-pregnancy-increases-consumption-in-offspring-possible-underlying-mechanisms
#16
REVIEW
Kinning Poon, Sarah F Leibowitz
Correlative human observational studies on substances of abuse have been highly dependent on the use of rodent models to determine the neuronal and molecular mechanisms that control behavioral outcomes. This is particularly true for gestational exposure to non-illicit substances of abuse, such as excessive dietary fat, ethanol, and nicotine, which are commonly consumed in our society. Exposure to these substances during the prenatal period has been shown in offspring to increase their intake of these substances, induce other behavioral changes, and affect neurochemical systems in several brain areas that are known to control behavior...
2016: Frontiers in Nutrition
https://www.readbyqxmd.com/read/27004534/the-relationship-between-omega-3-and-smoking-habit-a-cross-sectional-study
#17
Nóris Scaglia, José Chatkin, Kenneth R Chapman, Ivone Ferreira, Mario Wagner, Peter Selby, Johane Allard, Noe Zamel
BACKGROUND: Omega3 polyunsaturated fatty acids (PUFAs) are related to several diseases, including smoking. The aim of this study was to evaluate the relationship between omega-3 intake and tobacco smoking, taking into account the qualitative differences in dietary intake between smokers and non-smokers, the amount of the ingested PUFA and their red blood (RBC) contents. We also looked for an association between omega-3 RBC content and smoking, and also between omega3 intake and the level of nicotine dependence...
March 22, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/26850449/carbohydrate-dependence-during-prolonged-simulated-cycling-time-trials
#18
RANDOMIZED CONTROLLED TRIAL
Samuel L Torrens, José L Areta, Evelyn B Parr, John A Hawley
PURPOSE: We determined the effect of suppressing lipolysis via administration of Nicotinic acid (NA) and pre-exercise feeding on rates of whole-body substrate utilisation and cycling time trial (TT) performance. METHODS: In a randomised, single-blind, crossover design, eight trained male cyclists/triathletes completed two series of TTs in which they performed a predetermined amount of work calculated to last ~60, 90 and 120 min. TTs were undertaken after a standardised breakfast (2 g kg(-1) BM of carbohydrate (CHO)) and ingestion of capsules containing either NA or placebo (PL)...
April 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/26821658/the-subunit-gene-ld%C3%AE-1-of-nicotinic-acetylcholine-receptors-plays-important-roles-in-the-toxicity-of-imidacloprid-and-thiamethoxam-against-leptinotarsa-decemlineata
#19
Yang Qu, Jinhua Chen, Chenge Li, Qiang Wang, Wenchao Guo, Zhaojun Han, Weihua Jiang
Nicotinic acetylcholine receptors (nAChRs) are pentameric ACh-gated ion channels. It is believed that nAChRs composed of different subunits may vary in their function and toxicological characteristics. Neonicotinoids are activators of nAChRs and important insecticides that are extensively used for crop protection and resistance has been developed by some pests. They are also major insecticides for the control of Leptinotarsa decemlineata, which is a destructive defoliator pest that invaded the Xinjiang region of China in the 1990s...
February 2016: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/26620261/heterogeneity-in-smokers-responses-to-tobacco-control-policies
#20
Erik Nesson
This paper uses unconditional quantile regression to estimate whether smokers' responses to tobacco control policies change across the distribution of smoking levels. I measure smoking behavior with the number of cigarettes smoked per day and also with serum cotinine levels, a continuous biomarker of nicotine exposure, using individual-level repeated cross-section data from the National Health and Nutrition Examination Surveys. I find that the cigarette taxes lead to reductions in both the number of cigarettes smoked per day and in smokers' cotinine levels...
December 1, 2015: Health Economics
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