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https://www.readbyqxmd.com/read/29342392/toxic-alcohols
#1
Jeffrey A Kraut, Michael E Mullins
No abstract text is available yet for this article.
January 18, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29341028/ameliorative-effects-of-zataria-multiflora-hydro-alcoholic-extract-on-gentamicin-induced-nephrotoxicity-in-rats
#2
Saeed Hajihashemi, Tahereh Jafarian, Mahboubeh Ahmadi, Ali Rahbari, Fatemeh Ghanbari
BACKGROUND: Nephrotoxicity is the major side effects of aminoglycoside antibiotics such as gentamicin. The aim of this study was to investigate the therapeutic effects of Z.multiflora (ZM) hydroalcoholic extract on gentamicin-induced nephrotoxicity. METHODS: Twenty-eight male Wistar rats categorized into four groups: 1) the control group without injection, 2) the gentamicin treated group (100 mg/kg, i.p) 3) the gentamicin and Z. Multiflora treated group; Z. Multiflora extract(0...
January 16, 2018: Drug Research
https://www.readbyqxmd.com/read/29339307/anticoccidial-activity-of-fruit-peel-of-punica-granatum-l
#3
Shazia Ahad, Syed Tanveer, Tauseef Ahmad Malik, Irshad Ahmad Nawchoo
In the interests of food safety and public health, plants and their compounds are now re-emerging as an alternative approach to treat parasitic diseases. Here, we studied the anticoccidial effect of different solvent extracts of the fruit peel of Punica granatum-a commercial waste from pomegranate juice industries. The hope underlying these experiments was to find a sustainable natural product for controlling coccidiosis. The plant extracts were prepared using solvents of different polarity. Acute oral toxicity study was first carried out to see the safety of crude extracts...
January 12, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29338155/association-between-caregiver-exposure-to-toxics-during-pregnancy-and-childhood-onset-asthma-a-case-control-study
#4
Souheil Hallit, Chantal Raherison, Mirna Waked, Pascale Salameh
The aim of this study was to evaluate the associations between caregiver-reported use of medications, alcohol, cigarette and/or waterpipe (WP), and exposure to pesticides/detergents during pregnancy with childhood-onset asthma. The study design consisted of a case-control study, conducted between December 2015 and April 2016, recruited 1503 children, aged between 3-16 years old. A questionnaire assessed the sociodemographic characteristics (age, gender, education level of both parents), the family history of asthma, and other known risk factors of asthma (heating system at home, child history of recurrent otitis, humidity in the house, child went to a daycare, smoking and drinking alcohol during pregnancy, exposure to pesticides and detergents)...
December 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29331789/anticonvulsant-activities-of-%C3%AE-asaronol-e-3-hydroxyasarone-an-active-constituent-derived-from-%C3%AE-asarone
#5
Xirui He, Yajun Bai, Min Zeng, Zefeng Zhao, Qiang Zhang, Ning Xu, Fanggang Qin, Xiaoyang Wei, Meimei Zhao, Ni Wu, Zehua Li, Yajun Zhang, Tai-Ping Fan, Xiaohui Zheng
BACKGROUND: Epilepsy is one of chronic neurological disorders that affects 0.5-1.0% of the world's population during their lifetime. There is a still significant need to develop novel anticonvulsant drugs that possess superior efficacy, broad spectrum of activities and good safety profile. METHODS: α-Asaronol and two current antiseizure drugs (α-asarone and carbamazepine (CBZ)) were assessed by in vivo anticonvulsant screening with the three most employed standard animal seizure models, including maximal electroshock seizure (MES), subcutaneous injection-pentylenetetrazole (PTZ)-induced seizures and 3-mercaptopropionic acid (3-MP)-induced seizures in mice...
August 31, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29329860/ethyl-carbamate-an-emerging-food-and-environmental-toxicant
#6
REVIEW
Vemana Gowd, Hongming Su, Petr Karlovsky, Wei Chen
Ethyl carbamate (EC), a chemical substance widely present in fermented food products and alcoholic beverages, has been classified as a Group 2A carcinogen by the International Agency for Research on Cancer (IARC). New evidence indicates that long-term exposure to EC may cause neurological disorders. Formation of EC in food and its metabolism have therefore been studied extensively and analytical methods for EC in various food matrices have been established. Due to the potential threat of EC to human health, mitigation strategies for EC in food products by physical, chemical, enzymatic, and genetic engineering methods have been developed...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29329665/bioactivation-of-1-chloro-2-hydroxy-3-butene-an-in-vitro-metabolite-of-1-3-butadiene-by-rat-liver-microsomes
#7
Ye Wang, Ying-Xin Yu, Yang Luan, Jing An, Dong-Guang Yin, Xin-Yu Zhang
1-Chloro-2-hydroxy-3-butene (CHB) is an in vitro metabolite of 1,3-butadiene, a rodent/human carcinogen. To search for an approach detecting CHB in vivo, it is vital to obtain a full understanding of CHB metabolism. Previously, we demonstrated that CHB was bioactivated to 1-chloro-3-buten-2-one (CBO) by alcohol dehydrogenase. However, CHB metabolism by cytochrome P450s has not been reported. Thus, in the present study, CHB metabolism by rat liver microsomes was investigated. The results showed that CHB was converted to 1-chloro-3,4-epoxy-2-butanol (CEB) and CBO...
January 9, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29329388/a-series-of-deaths-involving-carfentanil-in-the-uk-and-associated-post-mortem-blood-concentrations
#8
Simon P Elliott, Elena Hernandez Lopez
The potent opioid and veterinary drug, carfentanil has recently entered the illicit drug market, especially in relation to heroin and cocaine. Recent publications have reported carfentanil concentrations found in fatalities occurring in the USA. This article presents the toxicological findings in seven heroin/cocaine cases occurring in the UK within a short period of time where carfentanil was detected and measured. Carfentanil was detected along with other drugs in all cases with no alcohol detected in the post-mortem blood in any of the cases...
January 10, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29325602/bile-acid-metabolism-in-liver-pathobiology
#9
John Y L Chiang, Jessica M Ferrell
Bile acids facilitate intestinal nutrient absorption and biliary cholesterol secretion to maintain bile acid homeostasis, which is essential for protecting liver and other tissues and cells from cholesterol and bile acid toxicity. Bile acid metabolism is tightly regulated by bile acid synthesis in the liver and bile acid biotransformation in the intestine. Bile acids are endogenous ligands that activate a complex network of nuclear receptor farnesoid X receptor and membrane G protein-coupled bile acid receptor-1 to regulate hepatic lipid and glucose metabolic homeostasis and energy metabolism...
January 11, 2018: Gene Expression
https://www.readbyqxmd.com/read/29321805/simultaneous-measurement-of-formic-acid-methanol-and-ethanol-in-vitreous-and-blood-samples-of-postmortem-by-headspace-gc-fid
#10
Hamideh Ghorbani, Alireza Nezami, Behjat Sheikholeslami, Arya Hedjazi, Mahnaz Ahmadimanesh
Background: Formic acid (formate) is the main reason for toxicity and death through methanol poisoning. The simultaneous determination of methanol, ethanol, and formate in the body can help to discover the cause of death and is useful in the diagnosis of acute methanol poisoning. The measurement of formate is not yet available in Iran. With regard to the increasing rate of methanol poisoning and its related mortality in Iran, as well as the main role of formate in methanol poisoning, this study was designed to set up an analytical method for the concurrent determination of ethanol, methanol, and formate...
2018: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/29319750/biological-screening-of-extracts-from-leaf-and-stem-bark-of-croton-floribundus-spreng-euphorbiaceae
#11
E F Barth, L S Pinto, P Dileli, D C Biavatti, Y L Silva, W Bortolucci, Z C Gazim, O S Takemura, M B Romagnolo, A Laverde-Junior
This work describes the preliminary evaluation of cytotoxic, antimicrobial, molluscicidal, antioxidant and anticholinesterase activities from leaf (LECF) and stem bark alcoholic extracts (BECF) of the species Croton floribundus Spreng. (Euphorbiaceae), popularly known as capixingui or tapixingui. BECF presented significant toxicity (LC50 = 89.6 μg/ml) in the Artemia salina Leach, 1819 (Crustacea: Branchiopoda) bioassay, whereas LECF did not show activity (LC50 > 1000 μg/ml). From DPPH method, the values of IC50 for the LECF and BECF were 61...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319385/evaluating-the-effect-of-diallyl-sulfide-on-regulation-of-inflammatory-mrna-expression-in-3t3l1-adipocytes-and-raw-264-7-macrophages-during-ethanol-treatment
#12
Venkata Harini Kema, Imran Khan, Suman Kapur, Palash Mandal
Diallyl sulfide (DAS) has been studied extensively for its alleged role as an anticancer and protective agent. Alcohol influences and effects on human health have been extensively studied. However, investigations toward developing and testing therapeutic agents that can reduce the tissue injury caused by ethanol are scarce. In this backdrop, this study was designed to explore the potential effect of DAS in reducing alcohol induced damage of 3T3L1 adipocytes and RAW 264.7 macrophages. MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay was performed to determine the DAS effect on cell viability...
January 10, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29304731/safety-tolerability-and-pharmacodynamics-of-apical-sodium-dependent-bile-acid-transporter-inhibition-with-volixibat-in-healthy-adults-and-patients-with-type-2-diabetes-mellitus-a-randomised-placebo-controlled-trial
#13
Renger G Tiessen, Ciara A Kennedy, Bradley T Keller, Nancy Levin, Lisette Acevedo, Bronislava Gedulin, Andre A van Vliet, Alejandro Dorenbaum, Melissa Palmer
BACKGROUND: Pathogenesis in non-alcoholic steatohepatitis (NASH) involves abnormal cholesterol metabolism and hepatic accumulation of toxic free cholesterol. Apical sodium-dependent bile acid transporter (ASBT) inhibition in the terminal ileum may facilitate removal of free cholesterol from the liver by reducing recirculation of bile acids (BAs) to the liver, thereby stimulating new BA synthesis from cholesterol. The aim of this phase 1 study in adult healthy volunteers (HVs) and patients with type 2 diabetes mellitus (T2DM) was to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of ASBT inhibition with volixibat (SHP626; formerly LUM002)...
January 5, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29299797/transcriptome-assembly-and-expression-profiling-of-the-molecular-responses-to-cadmium-toxicity-in-cerebral-ganglia-of-wolf-spider-pardosa-pseudoannulata-araneae-lycosidae
#14
Huilin Yang, Yuande Peng, Yixue Shi, Jianxiang Tian, Juan Wang, Xianjin Peng, Chunliang Xie, Xiang Xu, Qisheng Song, Zhi Wang, Zhiyue Lv
Cadmium (Cd) is a heavy metal that can cause irreversible toxicity to animals, and is an environmental pollutant in farmlands. Spiders are considered to be an excellent model for investigating the impacts of heavy metals on the environment. To date, the changes at the molecular level in the cerebral ganglia of spiders are poorly understood. Cd exposure leads to strong damage in the nervous system, such as apoptosis and necrosis of nerve cells, therefore we conducted a transcriptomic analysis of Pardosa pseudoannulata cerebral ganglia under Cd stress to profile differential gene expression (DGE)...
January 3, 2018: Ecotoxicology
https://www.readbyqxmd.com/read/29296084/development-and-characterization-of-p1025-loaded-bioadhesive-liquid-crystalline-system-for-the-prevention-of-streptococcus-mutans-biofilms
#15
Giovana Maria Fioramonti Calixto, Cristiane Duque, Kelly Limi Aida, Vanessa Rodrigues Dos Santos, Loiane Massunari, Marlus Chorilli
Formation of a dental biofilm by Streptococcus mutans can cause dental caries, and remains a costly health problem worldwide. Recently, there has been a growing interest in the use of peptidic drugs, such as peptide p1025, analogous to the fragments 1025-1044 of S. mutans cellular adhesin, responsible for the adhesion and formation of dental biofilm. However, peptides have physicochemical characteristics that may affect their biological action, limiting their clinical performance. Therefore, drug-delivery systems, such as a bioadhesive liquid-crystalline system (LCS), may be attractive strategies for peptide delivery...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29296043/evaluation-of-radiation-shielding-properties-of-the-polyvinyl-alcohol-iron-oxide-polymer-composite
#16
K Srinivasan, E James Jabaseelan Samuel
Context: Lead is the conventional shielding material against gamma/X-rays. It has some limitations such as toxic, high density, nonflexibility, and also bremsstrahlung production during electron interaction. It may affect the accuracy of radiotherapy outcome. Aims: To theoretically analyze the radiation shielding properties of flexible polyvinyl alcohol/iron oxide polymer composite with five different concentrations of magnetite over the energy range of 15 KeV-20 MeV...
October 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/29287377/prooxidant-effect-of-%C3%AE-tocopherol-on-soybean-oil-global-monitoring-of-its-oxidation-process-under-accelerated-storage-conditions-by-1h-nuclear-magnetic-resonance
#17
A S Martin-Rubio, P Sopelana, M L Ibargoitia, María D Guillén
The effect of adding α-tocopherol in proportions ranging from 0.002 to 5% in weight on the oxidative stability of soybean oil was studied. For the first time, the oxidation process under accelerated storage conditions including evolution of the molar percentages of the several types of oil acyl groups, and formation and evolution of various kinds of oxidation products comprising hydroperoxides, hydroxy-dienes and other alcohols, epoxides, aldehydes and keto-dienes, was followed by 1H nuclear magnetic resonance...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29281883/establishing-an-artificial-pathway-for-efficient-biosynthesis-of-hydroxytyrosol
#18
Xianglai Li, Zhenya Chen, Yifei Wu, Yajun Yan, Xinxiao Sun, Qipeng Yuan
Hydroxytyrosol (HT) is a valuable natural phenolic compound with strong antioxidant activity and various physiological and pharmaceutical functions. In this study, we established an artificial pathway for biosynthesis of HT. First, efficient enzymes were selected to construct tyrosol biosynthetic pathway. ARO10 from Saccharomyces cerevisiae was shown to be a better ketoacid decarboxylase than Kivd from Lactococcus lactis for tyrosol production. While knockout of feaB significantly decreased accumulation of the byproduct 4-hydroxyphenylacetic acid, overexpression of alcohol dehydrogenase ADH6 further improved tyrosol production...
December 28, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/29281181/the-cumulative-daily-tolerance-levels-of-potentially-toxic-excipients-ethanol-and-propylene-glycol-are-commonly-exceeded-in-neonates-and-infants
#19
K S Valeur, S A Hertel, K E Lundstrøm, H Holst
Poly-medicated neonates and young infants may be at risk of harmful cumulative exposure to toxic excipients like ethanol, propylene glycol and benzyl alcohol during routine clinical care. The aim of this study was to calculate the cumulative daily alcohol exposure (mg/kg/day) in poly-medicated neonates and infants and compare these levels to the tolerance limits found in guidelines published by European Medicines Agency (EMA). As part of the SEEN study, all medicinal products administered to neonates and infants were recorded...
December 27, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29280481/methanol-independent-induction-in-pichia-pastoris-by-simple-derepressed-overexpression-of-single-transcription-factors
#20
Thomas Vogl, Lukas Sturmberger, Pia C Fauland, Patrick Hyden, Jasmin Elgin Fischer, Christian Schmid, Gerhard G Thallinger, Martina Geier, Anton Glieder
Carbon source regulated promoters are well-studied standard tools for controlling gene expression. Acquiring control over the natural regulation of promoters is important for metabolic engineering and synthetic biology applications. In the commonly used protein production host Komagataella phaffii (Pichia pastoris), methanol-inducible promoters are used because of their tight regulation and exceptional strength. Yet, induction with toxic and flammable methanol can be a considerable safety risk and cannot be applied in many existing fermentation plants...
December 27, 2017: Biotechnology and Bioengineering
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