keyword
MENU ▼
Read by QxMD icon Read
search

Neurotoxic reactions

keyword
https://www.readbyqxmd.com/read/29434798/morphological-and-functional-changes-of-microglia-cultured-under-different-oxygen-concentrations-and-the-analysis-of-related-mechanisms
#1
Xing Wu, Tengbo Yu, Hongyan Xu, Xiuming Sun, Dewei Kou, Liping Li
This study investigated the effects of different concentrations of oxygen exposure on the morphology and function of N9 microglia and analyzed its mechanisms. N9 microglia were cultured under the condition of high (95% O2 and 5% CO2), normal (95% air and 5% CO2) and low oxygen (95% CO2 and 5% O2) concentrations. The cell morphologies were observed under inverted phase contrast microscope after 24 h. Flow cytometry was applied to detect cell survival and apoptotic rate. The mRNA and protein expression levels of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) were detected by reverse transcription-polymerase chain reaction (RT-PCR) and western blot analysis, respectively...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434381/ismp-adverse-drug-reactions-influenza-vaccine-induced-stevens-johnson-syndrome-vilazodone-induced-nightmares-dabigatran-induced-pustular-eruptions-neurotoxic-and-cardiotoxic-symptoms-after-cannabis-concentrate-exposure-rosuvastatin-induced-skin-eruption
#2
Michael A Mancano
The purpose of this feature is to heighten awareness of specific adverse drug reactions (ADRs), discuss methods of prevention, and promote reporting of ADRs to the US Food and Drug Administration's (FDA) MedWatch program (800-FDA-1088). If you have reported an interesting, preventable ADR to MedWatch, please consider sharing the account with our readers. Write to Dr. Mancano at ISMP, 200 Lakeside Drive, Suite 200, Horsham, PA 19044 (phone: 215-707-4936; e-mail: mmancano@temple.edu). Your report will be published anonymously unless otherwise requested...
February 2018: Hospital Pharmacy
https://www.readbyqxmd.com/read/29417441/glycotoxins-dietary-and-metabolic-origins-possible-amelioration-of-neurotoxicity-by-carnosine-with-special-reference-to-parkinson-s-disease
#3
REVIEW
Alan R Hipkiss
There is a strong association between neurodegeneration and protein glycation; possible origins of neurotoxic glycated protein, also called glycotoxins, include (i) diet (i.e., proteins cooked at high temperatures), (ii) protein glycation in the gut, and (iii) intracellular reaction of proteins with deleterious aldehydes, especially methylglyoxal (MG). It is likely that excessive glycolysis provokes increased generation of dihydroxyacetone phosphate which decomposes into MG due to activity-induced deamidation of certain asparagine residues in the glycolytic enzyme triose-phosphate isomerase (TPI)...
February 7, 2018: Neurotoxicity Research
https://www.readbyqxmd.com/read/29413859/brain-damage-and-neurological-symptoms-induced-by-t-2-toxin-in-rat-brain
#4
Pu Guo, Aimei Liu, Deyu Huang, Qinghua Wu, Zainab Fatima, Yanfei Tao, Guyue Cheng, Xu Wang, Zonghui Yuan
T-2 toxin, a trichothecene mycotoxin, is a common contaminant in food and animal feed, and is also present in processed cereal products. The most common route of T-2 toxin exposure in humans is through dietary ingestion. The cytotoxic effects of T-2 toxin include modifications to feeding behavior, nervous disorders, cardiovascular alterations, immunosuppression, and hemostatic derangements. However, to date, effects on the central nervous system (CNS) have rarely been reported. In the present study, female Wistar rat were given a single dose of T-2 toxin at 2 mg/kg b...
January 27, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29409005/environmental-and-dietary-exposure-to-copper-and-its-cellular-mechanisms-linking-to-alzheimer-disease
#5
Heng-Wei Hsu, Stephen C Bondy, Masashi Kitazawa
Metals are commonly found in the environment, household, and workplaces in various forms, and a significant segment of the population is routinely exposed to the trace amount of metals from variety of sources. Exposure to metals, such as aluminum, lead, iron, and copper, from environment has long been debated as a potential environmental risk factor for Alzheimer's disease (AD) for decades, yet results from in vitro, in vivo, and human population remain controversial. In the case of copper, the neurotoxic mechanism of action was classically viewed as its strong affinity to amyloid-beta (Aβ) to help its aggregation and increase oxidative stress via Fenton reaction...
February 2, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29376868/geographical-distribution-and-diversity-of-gut-microbial-nadh-ubiquinone-oxidoreductase-sequence-associated-with-alzheimer-s-disease
#6
Elena L Paley, Tatiana Merkulova-Rainon, Aleksandr Faynboym, Valery I Shestopalov, Igor Aksenoff
Earlier we reported induction of neurotoxicity and neurodegeneration by tryptophan metabolites that link the metabolic alterations to Alzheimer's disease (AD). Tryptophan is a product of Shikimate pathway (SP). Human cells lack SP, which is found in human gut bacteria exclusively using SP to produce aromatic amino acids (AAA). This study is a first attempt toward gene-targeted analysis of human gut microbiota in AD fecal samples. The oligonucleotide primers newly-designed for this work target SP-AAA in environmental bacteria associated with human activity...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29363648/increased-efficacy-of-antivenom-combined-with-hyperbaric-oxygen-on-deinagkistrodon-acutus-envenomation-in-adult-rats
#7
Mo Li, Zhi-Hui Xie, An-Yong Yu, Dong-Po He
BACKGROUND: Snakebites are a neglected threat to global human health with a high morbidity rate. The present study explored the efficacy of antivenom with hyperbaric oxygen (HBO) intervention on snakebites, which could provide the experimental basis for clinical adjuvant therapy. METHODS: Male Sprague-Dawley rats (n = 96) were randomized into four groups: the poison model was established by injecting Deinagkistrodon acutus (D. acutus) venom (0.8 LD50) via the caudal vein; the antivenom group was injected immediately with specific antivenom via the caudal vein after successful establishment of the envenomation model; and the antivenom + HBO group was exposed to HBO environment for 1 h once at predetermined periods of 0 h, 4 h, 12 h, and 23 h after antivenin administration...
February 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29289282/oxidation-reactivity-of-1-2-bis-2-4-6-tribromophenoxy-ethane-btbpe-by-compound-i-model-of-cytochrome-p450s
#8
Zhongyu Wang, Zhiqiang Fu, Qi Yu, Jingwen Chen
Alternative brominated flame retardants (BFRs) have become prevalent as a consequence of restrictions on the use of polybrominated diphenyl ethers (PBDEs). For risk assessment of these alternatives, knowledge of their metabolism via cytochrome P450 enzymes is needed. We have previously proved that density functional theory (DFT) is able to predict the metabolism of PBDEs by revealing the molecular mechanisms. In the current study, the reactivity of 1,2-bis(2,4,6-tribromophenoxy)ethane and structurally similar chemicals with the Compound I model representing the active site of P450 enzymes was investigated...
December 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29286579/systematic-review-of-pharmacogenomics-and-adverse-drug-reactions-in-paediatric-oncology-patients
#9
REVIEW
Rachel Conyers, Subalatha Devaraja, David Elliott
Many paediatric patients with cancer experience significant chemotherapy side effects. Predisposition to drug reactions is governed by single nucleotide polymorphisms (SNPs). We performed a systematic review of the literature from 2006 through 2016. Outcomes of interest included patient characteristics, cancer type drug of interest, genes investigated, toxicity identified and genetic polymorphisms implicated. The primary toxicities studied were neurotoxicity cardiotoxicity, osteonecrosis, and thromboembolism and hypersensitivity reactions...
December 29, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29284860/effect-of-locally-administered-dexmedetomidine-as-adjuvant-to-levobupivacaine-in-supraclavicular-brachial-plexus-block-double-blind-controlled-study
#10
Bikash Bisui, Swastika Samanta, Sumanta Ghoshmaulik, Amit Banerjee, Tirtha R Ghosh, Suman Sarkar
Context: Brachial plexus block is effective with good postoperative analgesia in upper limb surgery has gained importance as it safe, low cost, and maintains stable hemodynamics intraoperatively. To decrease the onset time and prolong the duration of nerve block bicarbonate, opioids (morphine, fentanyl, etc.), sympathomimetic agents (epinephrine, phenylephrine, etc.), α-2 agonists (clonidine and dexmedetomidine), calcium channel blocker (verapamil), magnesium sulfate, etc., were studied with local anesthetics and their isomers...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29258287/a-dna-barcode-based-rpa-assay-bar-rpa-for-rapid-identification-of-the-dry-root-of-ficus-hirta-wuzhimaotao
#11
Enwei Tian, Qianqian Liu, Haoting Ye, Fang Li, Zhi Chao
Background: Wuzhimaotao (the dry root of Ficus hirta) is used as both medicine and food ingredient by the locals in areas around Nanling Mountains of China. Due to its very similar external morphologies with Duanchangcao (the root of Gelsemium elegans, which contains gelsemine that is extremely neurotoxic) and the associated growth of these two plants, incidents of food poisoning and even death frequently occur, resulting from the misuse of Duanchangcao as Wuzhimaotao. The aim of this study is to develop a fast, even, on-spot approach to identification of Wuzhimaotao...
December 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29172520/copper-i-chelators-for-alzheimer-s-disease
#12
Stanley Opare, Arvi Rauk
A component of the neurotoxicity of the beta amyloid peptide (Aβ) of Alzheimer's disease is its ability to generate superoxide, hydrogen peroxide and hydroxyl radicals by the reaction of its reduced copper complex, Aβ/Cu+ has with molecular oxygen. The objective of the present work was to devise compounds, L, that could remove Cu+ from Aβ/Cu+, with the property that L/Cu+ itself would not be capable of reducing O2 or hydrogen peroxide. We show by density functional calculations that several pincer-type compounds with two imidazole rings and a sulphur or nitrogen, have the desired combination of Cu+ binding affinity and Cu2+ reduction potential...
November 27, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29168380/quantitative-study-of-oligomerization-of-yeast-prion-sup35nm-proteins
#13
Yanjing Wang, Chi Wu
The fibrillation of misfolded neurodegenerative diseases related proteins has been extensively studied in the last few decades, but the initial oligomerization has been rarely touched even though some recent evidences indicated that small protein oligomers are more neurotoxic than long protein fibers. It is rather difficult to study the initial oligomerization (nucleation) because most of experimental methods, such as β-sheet related fluorescence assay and X-ray diffraction, are helpless in detecting small structure-less protein oligomers...
November 23, 2017: Biochemistry
https://www.readbyqxmd.com/read/29151132/safety-of-intrathecal-route-focus-to-methylprednisolone-acetate-depo-medrol-use
#14
REVIEW
Joël Schlatter, David Nguyen, Michèle Zamy, Sofiane Kabiche, Jean-Eudes Fontan, Salvatore Cisternino
PURPOSE: Complications of the intrathecal route may cause potential toxicity related to the medical device and properties of the administered drug and/or excipient. A description of clinical and histological effects of polyethylene glycol and miripirium after Depo-Medrol injection, and the adverse reactions of particulate methylprednisolone acetate was conducted. The safety of the intrathecal route with excipients, label and off-label drugs is discussed. METHODS: A bibliographic search in Medline, Google, and Cochrane database from 1940 to June 2016 was performed...
November 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29145874/peripheral-immune-tolerance-alleviates-the-intracranial-lipopolysaccharide-injection-induced-neuroinflammation-and-protects-the-dopaminergic-neurons-from-neuroinflammation-related-neurotoxicity
#15
Yang Liu, Xin Xie, Li-Ping Xia, Hong Lv, Fan Lou, Yan Ren, Zhi-Yi He, Xiao-Guang Luo
BACKGROUND: Neuroinflammation plays a critical role in the onset and development of neurodegeneration disorders such as Parkinson's disease. The immune activities of the central nervous system are profoundly affected by peripheral immune activities. Immune tolerance refers to the unresponsiveness of the immune system to continuous or repeated stimulation to avoid excessive inflammation and unnecessary by-stander injury in the face of continuous antigen threat. It has been proved that the immune tolerance could suppress the development of various peripheral inflammation-related diseases...
November 16, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29137682/cefepime-induced-neurotoxicity-a-systematic-review
#16
Lauren E Payne, David J Gagnon, Richard R Riker, David B Seder, Elizabeth K Glisic, Jane G Morris, Gilles L Fraser
BACKGROUND: Cefepime is a widely used antibiotic with neurotoxicity attributed to its ability to cross the blood-brain barrier and exhibit concentration-dependent ϒ-aminobutyric acid (GABA) antagonism. Neurotoxic symptoms include depressed consciousness, encephalopathy, aphasia, myoclonus, seizures, and coma. Data suggest that up to 15% of ICU patients treated with cefepime may experience these adverse effects. Risk factors include renal dysfunction, excessive dosing, preexisting brain injury, and elevated serum cefepime concentrations...
November 14, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29137186/dopaminergic-dysfunction-in-mammalian-dopamine-neurons-induced-by-simazine-neurotoxicity
#17
Xueting Li, Jia Yu, Jianan Li, Yanping Wu, Baixiang Li
Many studies have shown that the pollutant simazine (6-chloro-N,N'-diethyl-1,3,5-triazine-2,4-diamine), which has been overused, inhibits the proliferation of mammalian dopaminergic cells, and affects the developmental differentiation of mammalian dopaminergic neurons. However, few studies have shown the effects of simazine on dopaminergic metabolism in these cells. Therefore, we aim to examine the metabolic effects of simazine exposure in mouse dopaminergic progenitor neurons (MN9D) at different exposure times...
November 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29134560/neurochemical-and-neurotoxic-effects-of-mdma-ecstasy-and-caffeine-after-chronic-combined-administration-in-mice
#18
Anna Maria Górska, Katarzyna Kamińska, Agnieszka Wawrzczak-Bargieła, Giulia Costa, Micaela Morelli, Ryszard Przewłocki, Grzegorz Kreiner, Krystyna Gołembiowska
MDMA (3,4-methylenedioxymethamphetamine) is a psychostimulant popular as a recreational drug because of its effect on mood and social interactions. MDMA acts at dopamine (DA) transporter (DAT) and serotonin (5-HT) transporter (SERT) and is known to induce damage of dopamine and serotonin neurons. MDMA is often ingested with caffeine. Caffeine as a non-selective adenosine A1/A2A receptor antagonist affects dopaminergic and serotonergic transmissions. The aim of the present study was to determine the changes in DA and 5-HT release in the mouse striatum induced by MDMA and caffeine after their chronic administration...
November 13, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29131611/synthesis-and-in-vitro-evaluation-of-monodisperse-amino-functional-polyester-dendrimers-with-rapid-degradability-and-antibacterial-properties
#19
Patrik Stenström, Erik Hjorth, Yuning Zhang, Oliver C J Andrén, Simon Guette-Marquet, Marianne Schultzberg, Michael Malkoch
Amine functional polymers, especially cationically charged, are interesting biomacromolecules for several reasons, including easy cell membrane entrance, their ability to escape endosomes through the proton sponge effect, spontaneous complexation and delivery of drugs and siRNA, and simple functionalization in aqueous solutions. Dendrimers, a subclass of precision polymers, are monodisperse and exhibit a large and exact number of peripheral end groups in relation to their size and have shown promise in drug delivery, biomedical imaging and as antiviral agents...
November 22, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29127491/pink1-attenuates-propofol-induced-apoptosis-and-oxidative-stress-in-developing-neurons
#20
Chao Liang, Fang Du, Jing Cang, Zhanggang Xue
BACKGROUND: The underlying mechanisms of propofol-induced neurotoxicity in developing neurons are still not completely understood. We examined the role of PTEN-induced kinase 1 (Pink1), an antioxidant protein, in propofol-induced apoptosis in developing neurons. MATERIALS AND METHODS: Primary hippocampal neurons isolated from neonatal Sprague-Dawley rats were exposed to propofol 20 μM for 2, 4, 6 and 12 h. Subsequently, neurons underwent overexpression and knockdown of Pink1, followed by propofol exposure (20 μM, 6 h)...
November 10, 2017: Journal of Anesthesia
keyword
keyword
32139
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"