keyword
MENU ▼
Read by QxMD icon Read
search

Phenytoine

keyword
https://www.readbyqxmd.com/read/28317156/synthesis-and-anticonvulsant-properties-of-new-3-3-diphenyl-2-5-dioxo-pyrrolidin-1-yl-acetamides-and-3-3-diphenyl-propionamides
#1
Jolanta Obniska, Anna Rapacz, Sabina Rybka, Małgorzata Góra, Paweł Żmudzki, Krzysztof Kamiński
The focused library of new amides derived from 3,3-diphenyl-2,5-dioxo-pyrrolidin-1-yl-acetic acid (2a-t) and 3,3-diphenyl-propionic acid (3a-t) as potential anticonvulsant agents was synthesized. The final products were obtained in the amidation reaction of the given carboxylic acid (2, 3) with appropriate secondary amines in the presence of carbonyldiimidazole (CDI) as a coupling reagent. The initial anticonvulsant screening was performed in mice intraperitoneally (i.p.) using the "classical" maximal electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ) seizure models, whereas the acute neurological toxicity was determined applying the rotarod test...
March 20, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28315722/risk-mitigation-for-children-exposed-to-drugs-during-gestation-a-critical-role-for-animal-preclinical-behavioral-testing
#2
REVIEW
Irving Zucker
Many drugs with unknown safety profiles are administered to pregnant women, placing their offspring at risk. I assessed whether behavioral outcomes for children exposed during gestation to antidepressants, anxiolytics, anti-seizure, anti-nausea and sedative medications can be predicted by more extensive animal studies than are part of the FDA approval process. Human plus rodent data were available for only 8 of 33 CNS-active drugs examined. Similar behavioral and cognitive deficits, including autism and ADHD emerged in human offspring and in animal models of these disorders after exposure to fluoxetine, valproic acid, carbamazepine, phenytoin, phenobarbital, acetaminophen and ibuprofen...
March 15, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28315465/early-preclinical-evaluation-of-dihydropyrimidin-thi-ones-as-potential-anticonvulsant-drug-candidates
#3
Mariana Matias, Gonçalo Campos, Samuel Silvestre, Amílcar Falcão, Gilberto Alves
Although significant advances are occurring in epilepsy research, about 30% of epileptic patients are still inadequately controlled by standard drug therapy. For this reason, it continues to be important to develop new chemical entities through which epilepsy could be effectively controlled. In this study, the anticonvulsant activity of forty-two dihydropyrimidin(thi)ones was explored and their efficacy was evaluated in rodents against the maximal electroshock seizure (MES) and subcutaneous pentylenetetrazole tests...
March 14, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28302415/a-prospective-study-to-assess-the-association-between-genotype-phenotype-and-prakriti-in-individuals-on-phenytoin-monotherapy
#4
Saket J Thaker, Prajakta P Gandhe, Charuta J Godbole, Shital R Bendkhale, Nitin B Mali, Urmila M Thatte, Nithya J Gogtay
BACKGROUND: Genetic polymorphisms in drug metabolizing enzymes (DMEs) impart distinct drug metabolizing capacity and a unique phenotype to an individual. Phenytoin has large inter-individual variability in metabolism due to polymorphisms in CYP2C9 and CYP2C19. As per Ayurveda, Prakriti imparts a unique phenotype to an individual. OBJECTIVE: To assess whether Prakriti can substitute phenotyping [therapeutic drug monitoring (TDM)] and genotyping in individualizing therapy with phenytoin in epilepsy patients...
March 14, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28293110/efficacy-and-safety-of-oxcarbazepine-in-the-treatment-of-children-with-epilepsy-a-meta-analysis-of-randomized-controlled-trials
#5
Hua Geng, Chengzhong Wang
BACKGROUND: To assess the efficacy and safety of oxcarbazepine (OXC) in the treatment of children with epilepsy. METHODS: Randomized controlled trials (RCTs) published in PubMed, Embase, Web of Science, Cochrane Library, Scopus, SinoMed (Chinese BioMedical Literature Service System, China), and Chinese National Knowledge Infrastructure (China) database were systematically reviewed. Eligible studies were those that compared the efficacy and safety of OXC with other antiepileptic drugs in epilepsy...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28290134/animal-models-of-seizures-and-epilepsy-past-present-and-future-role-for-the-discovery-of-antiseizure-drugs
#6
Wolfgang Löscher
The identification of potential therapeutic agents for the treatment of epilepsy requires the use of seizure models. Except for some early treatments, including bromides and phenobarbital, the antiseizure activity of all clinically used drugs was, for the most part, defined by acute seizure models in rodents using the maximal electroshock and subcutaneous pentylenetetrazole seizure tests and the electrically kindled rat. Unfortunately, the clinical evidence to date would suggest that none of these models, albeit useful, are likely to identify those therapeutics that will effectively manage patients with drug resistant seizures...
March 13, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28286626/periodic-lateralized-epileptiform-discharges-can-survive-anesthesia-and-result-in-asymmetric-drug-induced-burst-suppression
#7
Edward C Mader, Louis A Cannizzaro, Frank J Williams, Saurabh Lalan, Piotr W Olejniczak
Drug-induced burst suppression (DIBS) is bihemispheric and bisymmetric in adults and older children. However, asymmetric DIBS may occur if a pathological process is affecting one hemisphere only or both hemispheres disproportionately. The usual suspect is a destructive lesion; an irritative or epileptogenic lesion is usually not invoked to explain DIBS asymmetry. We report the case of a 66-year-old woman with new-onset seizures who was found to have a hemorrhagic cavernoma and periodic lateralized epileptiform discharges (PLEDs) in the right temporal region...
February 20, 2017: Neurology International
https://www.readbyqxmd.com/read/28284382/medication-induced-interstitial-nephritis-in-the-21st-century
#8
REVIEW
Cynthia C Nast
Interstitial nephritis is an immune mediated form of tubulointerstitial kidney injury that may occur secondary to drugs, autoimmune disease, infections, and hematologic disorders or as a reactive process. Drug-induced acute interstitial nephritis (DI-AIN) occurs in 0.5%-3% of all kidney biopsies and in 5%-27% of biopsies performed for acute kidney injury. Drugs are implicated in 70%-90% of biopsy-proved IN with a prevalence of 50% in less developed to 78% in more developed countries. DI-AIN typically is idiosyncratic because of a delayed hypersensitivity reaction, although some chemotherapeutic agents are permissive for immune upregulation and injure the kidney in a dose-related manner...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28282553/challenges-in-the-treatment-of-convulsive-status-epilepticus
#9
REVIEW
Gaetano Zaccara, Gianfranco Giannasi, Roberto Oggioni, Eleonora Rosati, Luciana Tramacere, Pasquale Palumbo
Convulsive status epilepticus (CSE) is a medical emergency associated with high mortality and morbidity. The most recent definition of CSE is a convulsive seizure lasting more than 5min or consecutive seizures without recovery of consciousness. In adults, for the treatment of the early stages of CSE, diazepam, lorazepam or midazolam are the most common treatments, although the choice of agent seems less important than rapid treatment. Midazolam, when administered intramuscularly (best evidence), buccally, or nasally, is effective and safe in the pre-hospital setting...
February 28, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28282137/enhanced-performance-of-blended-polymer-excipients-in-delivering-a-hydrophobic-drug-through-the-synergistic-action-of-micelles-and-hpmcas
#10
Ziang Li, Lindsay M Johnson, Ralm G Ricarte, Letitia J Yao, Marc A Hillmyer, Frank S Bates, Timothy P Lodge
Blends of hydroxypropyl methylcellulose acetate succinate (HPMCAS) and dodecyl (C12)-tailed poly(N-isopropylacrylamide) (PNIPAm) were systematically explored as a model system to dispense the active ingredient phenytoin by rapid dissolution, followed by the suppression of drug crystallization for an extended period. Dynamic and static light scattering revealed that C12-PNIPAm polymers, synthesized by reversible addition-fragmentation chain-transfer polymerization, self-assembled into micelles with dodecyl cores in phosphate-buffered saline (PBS, pH 6...
March 10, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28281507/transient-lesion-in-the-splenium-of-corpus-callosum-due-to-abrupt-phenytoin-withdrawal
#11
Dhananjay Duberkar, Rajesh Jawale
No abstract text is available yet for this article.
2017: Neurology India
https://www.readbyqxmd.com/read/28281491/status-epilepticus-refractory-and-super-refractory
#12
REVIEW
Deepanshu Dubey, Jayantee Kalita, Usha K Misra
Status epilepticus (SE) is an important neurological emergency. It is defined as seizures lasting for 5 minutes or more or recurrent seizures without recovery of consciousness to baseline between the attacks. Refractory SE (RSE) is defined as SE persisting despite sufficient dose of benzodiazepines and at least one antiepileptic drug (AED), irrespective of time. Super refractory SE (SRSE) is defined as SE that continues for 24 hours or more after the use of anesthetic therapy, including cases that recur on weaning of the anesthestic agent...
2017: Neurology India
https://www.readbyqxmd.com/read/28280381/topical-phenytoin-for-the-treatment-of-neuropathic-pain
#13
David J Kopsky, Jan M Keppel Hesselink
We developed and tested a new putative analgesic cream, based on the anticonvulsant phenytoin in patients suffering from treatment refractory neuropathic pain. The use of commercial topical analgesics is not widespread due to the facts that capsaicin creams or patches can give rise to side effects, such as burning, and analgesic patches (e.g., lidocaine 5% patches) have complex handling, especially for geriatric patients. Only in a few countries, compounded creams based on tricyclic antidepressants or other (co-)analgesics are available...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28274836/a-novel-gingival-overgrowth-mouse-model-induced-by-the-combination-of-csa-and-ligature-induced-inflammation
#14
Ai Okanobu, Shinji Matsuda, Mikihito Kajiya, Tsuyoshi Fujita, Mizuho Kittaka, Hideki Shiba, Hidemi Kurihara
Drug-induced gingival overgrowth (DIGO) is a side effect of the enlargement of gingival tissue by phenytoin, nifedipine, and cyclosporine A (CsA). Gingival inflammation has been identified as a key factor that initiates DIGO. However, a sufficient animal model for clarifying the role of inflammation in DIGO has not yet been generated. We herein describe a novel CsA-induced gingival overgrowth mouse model to evaluate the role of inflammation. A ligature was placed around the second molar in maxillae for 7days to induce gingival inflammation, and CsA (50mg/kg/day) was administered to mice during each experimental period...
March 6, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28258204/mechanism-of-sodium-channel-block-by-local-anesthetics-antiarrhythmics-and-anticonvulsants
#15
Denis B Tikhonov, Boris S Zhorov
Local anesthetics, antiarrhythmics, and anticonvulsants include both charged and electroneutral compounds that block voltage-gated sodium channels. Prior studies have revealed a common drug-binding region within the pore, but details about the binding sites and mechanism of block remain unclear. Here, we use the x-ray structure of a prokaryotic sodium channel, NavMs, to model a eukaryotic channel and dock representative ligands. These include lidocaine, QX-314, cocaine, quinidine, lamotrigine, carbamazepine (CMZ), phenytoin, lacosamide, sipatrigine, and bisphenol A...
March 3, 2017: Journal of General Physiology
https://www.readbyqxmd.com/read/28255340/phenytoin-silver-a-new-nanocompound-for-promoting-dermal-wound-healing-via-comprehensive-pharmacological-action
#16
Xiao-Yu Ai, Hui-Juan Liu, Cheng Lu, Cai-Li Liang, Yan Sun, Shuang Chen, Bo Sun, Yang Li, Yan-Rong Liu, Qiang Zhang, Xue-Qiang Liu, Ting Xiao, Xue-Shuang Jing, Tao Sun, Hong-Gang Zhou, Cheng Yang
Phenytoin, an antiepileptic drug, has been widely used for wound healing. Inspired by previous studies, phenytoin silver (PnAg), a sparingly soluble silver nanocompound, was synthesized which exhibited good therapeutic efficacy in tissue repair with low toxicity (LD50 >5 g/kg). In vivo studies showed that PnAg could accelerate dermal wound healing and strong inflammation control in Sprague-Dawley rats (SD rat) and Bama minipigs. Due to its low solubility, PnAg led to low toxicity and blood enrichment in animals...
2017: Theranostics
https://www.readbyqxmd.com/read/28254201/unusual-association-of-scn2a-epileptic-encephalopathy-with-severe-cortical-dysplasia-detected-by-prenatal-mri
#17
Silvia Bernardo, Enrica Marchionni, Sabrina Prudente, Paola De Liso, Alberto Spalice, Antonella Giancotti, Lucia Manganaro, Antonio Pizzuti
We present an atypical association of SCN2A epileptic encephalopathy with severe cortical dysplasia. SCN2A mutations are associated with epileptic syndromes from benign to extremely severe in absence of such macroscopic brain findings. Prenatal MRI (Magnetic Resonance Imaging) in a 32 weeks fetus, with US (Ultrasonography) diagnosis of isolated ventriculomegaly showed CNS (Central Nervous System) dysplasia characterized by lack of differentiation between cortical and subcortical layers, pachygyria and corpus callosum dysgenesis...
February 7, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28242474/antiseizure-antidepressant-and-antipsychotic-medication-prescribing-in-elderly-nursing-home-residents
#18
Sai Praneeth R Bathena, Ilo E Leppik, Andres M Kanner, Angela K Birnbaum
OBJECTIVE: The incidence of epilepsy is highest in the elderly and the prevalence of epilepsy is higher in nursing home residents than in other cohorts. Co-medications that act in the central nervous system (CNS) are frequently prescribed in this population. The objective was to identify the most commonly prescribed antiseizure drugs (ASDs) and determine the frequency of use of antipsychotic and antidepressant medications in elderly nursing home residents receiving ASDs. METHODS: Data were obtained from a pharmacy database serving 18,752 patients in Minnesota and Wisconsin nursing homes...
February 24, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28240353/carbamazepine-versus-phenytoin-monotherapy-for-epilepsy-an-individual-participant-data-review
#19
REVIEW
Sarah J Nevitt, Anthony G Marson, Jennifer Weston, Catrin Tudur Smith
BACKGROUND: This is an updated version of the original Cochrane Review published in Issue 2, 2002 and its subsequent updates in 2010 and 2015.Epilepsy is a common neurological condition in which recurrent, unprovoked seizures are caused by abnormal electrical discharges from the brain. It is believed that with effective drug treatment, up to 70% of individuals with active epilepsy have the potential to become seizure-free and go into long-term remission shortly after starting drug therapy with a single antiepileptic drug in monotherapy...
February 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28239528/prevalence-of-cardiovascular-risk-factors-in-people-with-epilepsy
#20
Rosa Maria Vivanco-Hidalgo, Alejandra Gomez, Antia Moreira, Laura Díez, Roberto Elosua, Jaume Roquer
OBJECTIVES: Epilepsy has been associated with cardiovascular comorbidity. This study aimed to assess the potential association between cardiovascular risk factors (CRFs), antiepileptic drugs (AEDs), and etiology. MATERIAL AND METHODS: A single-center retrospective epilepsy cohort from the decade of 2004-2013 was assessed. Poisson regression models with robust variance were estimated to obtain CRF prevalence ratios (PR) according to AED prescription and etiology...
February 2017: Brain and Behavior
keyword
keyword
37753
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"