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Anticonvulsant

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https://www.readbyqxmd.com/read/28718873/clinical-features-of-drug-reaction-with-eosinophilia-and-systemic-symptoms-dress-syndrome-a-study-of-25-patients-in-korea
#1
Jin Y Lee, Suh-Young Lee, Ji E Hahm, Jae W Ha, Chul W Kim, Sang S Kim
BACKGROUND: Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a rare adverse drug reaction. This study aimed to evaluate the incidence of association with individual drugs, clinical manifestations, disease course, and outcomes of DRESS. METHODS: Using the criteria of the European Registry of Severe Cutaneous Adverse Reactions (RegiSCAR), the medical records of 25 patients diagnosed with DRESS between 2006 and 2015 were retrospectively reviewed...
July 18, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28714383/novel-mannich-bases-as-potential-anticonvulsants-syntheses-characterization-and-biological-evaluation
#2
Amit Kumar Keshari, Aseem Tewari, Shweta Singh Verma, Shailendra K Saraf
BACKGROUND: Mannich bases are known to be an important pharmacophore or bioactive leads in the synthesis of various potential agents that have a variety of therapeutic activities like anticancer, antipsychotic, anticonvulsant, antimalarial, anti-inflammatory, antibacterial and so forth. Thus, in the present research, conjugation of moieties like 1,5-benzoxazepines and 1,5-benzothiazepines with secondary amines like piperazine, methyl piperazine and morpholine was carried out in a Mannich base with an anticipation of good anticonvulsant activity...
July 17, 2017: Central Nervous System Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28713269/the-emerging-role-for-zinc-in-depression-and-psychosis
#3
REVIEW
Matthew A Petrilli, Thorsten M Kranz, Karine Kleinhaus, Peter Joe, Mara Getz, Porsha Johnson, Moses V Chao, Dolores Malaspina
Zinc participation is essential for all physiological systems, including neural functioning, where it participates in a myriad of cellular processes. Converging clinical, molecular, and genetic discoveries illuminate key roles for zinc homeostasis in association with clinical depression and psychosis which are not yet well appreciated at the clinical interface. Intracellular deficiency may arise from low circulating zinc levels due to dietary insufficiency, or impaired absorption from aging or medical conditions, including alcoholism...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28713031/an-lc-ms-ms-based-candidate-reference-method-for-the-quantification-of-carbamazepine-in-human-serum
#4
Judith Taibon, Rupert Schmid, Stephanie Lucha, Stephan Pongratz, Kirill Tarasov, Christoph Seger, Christian Timm, Roland Thiele, Joachim Mark Herlan, Uwe Kobold
A validated LC-MS/MS-based candidate reference measurement procedure for the quantification of carbamazepine is presented in order to be used for standardization and harmonization of routine assays applied for therapeutic drug monitoring. Sample preparation was based on protein precipitation using acetonitrile followed by sample dilution. Since the previously listed certified reference material (CRM) SRM 1599 (anticonvulsant drug level assay standard) is no longer available, an ISO certified calibration material was used in this assay...
July 13, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28709814/the-therapeutic-implication-of-a-novel-scn2a-mutation-associated-early-onset-epileptic-encephalopathy-with-rett-like-features
#5
Jao-Shwann Liang, Li-Ju Lin, Ming-Tao Yang, Jinn-Shyan Wang, Jyh-Feng Lu
Epileptic encephalopathies are highly heterogeneous and phenotypical disorders with different underlying genetic defects. Mutations in the SCN2A gene cause different epilepsy syndromes, including epilepsy of infancy with migrating focal seizures, Ohtahara syndrome, and West syndrome. We utilized a targeted next generation sequencing (NGS) approach on a girl with early-onset seizures and Rett-like features, including autistic behavior, limited hand function with chorea, and profound intellectual disability, to identify novel missense mutation (c...
July 11, 2017: Brain & Development
https://www.readbyqxmd.com/read/28709416/warfarin-induced-toxic-epidermal-necrolysis-in-combination-therapy-of-henoch-sch%C3%A3-nlein-purpura-nephritis-a-case-report
#6
Katsuaki Kasahara, Yoshimitsu Gotoh, Yoshiyuki Kuroyanagi, China Nagano
BACKGROUND: Toxic epidermal necrolysis (TEN) is a rare life-threatening condition almost exclusively attributed to drugs. The main etiologic factors for TEN are sulphonamides, anticonvulsants, and antibiotics; however, there are no published reports of warfarin causing TEN. CASE PRESENTATION: We present the case of a 3-year-old patient who developed TEN while receiving treatment for Henoch-Schönlein purpura nephritis (HSPN). With multiple-drug therapy comprising prednisolone, mizoribine, dipyridamole, and warfarin, it is difficult to detect which drug is the causative agent...
July 14, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28708399/development-and-validation-of-a-computational-model-ensemble-for-the-early-detection-of-bcrp-abcg2-substrates-during-the-drug-design-stage
#7
Melisa Edith Gantner, Roxana Noemí Peroni, Juan Francisco Morales, María Luisa Villalba, María Esperanza Ruiz, Alan Talevi
Breast Cancer Resistance Protein (BCRP) is an ATP-dependent efflux transporter linked to the multidrug resistance phenomenon in many diseases such as epilepsy and cancer, and a potential source of drug interactions. For those reasons, the early identification of substrates and non-substrates of this transporter during the drug discovery stage is of great interest. We have developed a computational non-linear model ensemble based on conformational independent molecular descriptors using a combined strategy of genetic algorithms, J48 decision tree classifiers and data fusion...
July 14, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28707583/cannabis-an-overview-of-its-adverse-acute-and-chronic-effects-and-their-implications
#8
Talitha C Ford, Amie C Hayley, Luke A Downey, Andrew C Parrott
In many communities, cannabis is perceived as a low-risk drug, leading to political lobbying to decriminalise its use. However, acute and chronic cannabis use has been shown to be harmful to several aspects of psychological and physical health, such as mood states, psychiatric outcomes, neurocognition, driving and general health. Furthermore, cannabis is highly addictive, and the adverse effects of withdrawal can lead to regular use. These in turn have adverse implications for public safety and health expenditure...
July 12, 2017: Current Drug Abuse Reviews
https://www.readbyqxmd.com/read/28707581/synthesis-and-evaluation-of-novel-diazaspiro-hydantoins-as-potential-anticonvulsants
#9
C S Ananda Kumar, B Veeresh, K C Ramesha, C S Ashok Raj, K M Mahadevaiah, S B Benaka Prasad
A series of novel diazaspiro compounds 6a-t were synthesised and biologically evaluated for their anticonvulsant activity in the maximal electroshock seizure (MES) assay. Most of the tested compounds exhibited moderate to weak activity in the MES screen test, The compounds 6f, 6h, 6i, 6j, 6p, 6s and 6n able to protect seizure effect significantly higher and this effect was similar when compared to standard drug treated rats.
July 12, 2017: Central Nervous System Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28702712/evaluation-of-the-anticonvulsant-effect-of-brilliant-blue-g-a-selective-p2x7-receptor-antagonist-in%C3%A2-the-iv-ptz-maximal-electroshock-and-6%C3%A2-hz-induced-seizure-tests-in-mice
#10
Dorota Nieoczym, Katarzyna Socała, Piotr Wlaź
Epilepsy is one of the most common neurological disorders which is diagnosed in around 65 million people worldwide. Clinically available antiepileptic drugs fail to control epileptic activity in about 30% of patients and they are merely symptomatic treatments and cannot cure or prevent epilepsy. There remains a need for searching new therapeutic strategies for epileptic disorders. The P2X7 receptor has been recently investigated as a new target in epilepsy treatment. Preclinical studies revealed that P2X7 receptor antagonists have anticonvulsant properties in some models of epilepsy...
July 12, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28698724/hla-b-1502-in-iranian-children-with-anticonvulsant-drugs-induced-skin-reactions
#11
Seyed Hasan Tonekaboni, Narjes Jafari, Mahboubeh Mansouri, Sayena Jabbehdari, Rahil Eftekhari, Zahra Chavoshzadeh, Fatemeh Abdollah Gorji, Mehrnaz Mesdaghi
OBJECTIVE: Anticonvulsant drugs can cause various forms of skin drug reactions, ranging from exanthema to severe blistering reactions. An association between HLA-B*1502 allele and severe skin reactions have been reported. MATERIALS & METHODS: Fifteen patients with severe skin reactions following treatment with anticonvulsant drugs (Carbamazepine, lamotrigine, phenobarbital, primidone) and 15 controls (age-matched epileptic patients taking similar anticonvulsants without drug eruption) were included...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/28698722/infantile-spasms-treated-with-intravenous-methypredinsolone-pulse
#12
Afagh Hassanzadeh Rad, Vahid Aminzadeh
OBJECTIVE: Infantile spasms is diagnosed late even by expert pediatricians. Late diagnosis (later than 3 weeks) can have a negative effect on the long-term prognosis. We aimed to investigate infantile spasms treated with intravenous methylprednisolone pulse. MATERIALS & METHODS: In this case series study, 20 infants with infantile spasms in 17-Shahrivar Hospital, Rasht, Iran were enrolled. Drugs were administered based on Mytinger protocol that included 3 days of methylprednisolone pulse and 56 days of oral prednisolone...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/28698450/analytical-techniques-and-pharmacokinetics-of-gastrodia-elata-blume-and-its-constituents
#13
REVIEW
Jinyi Wu, Bingchu Wu, Chunlan Tang, Jinshun Zhao
Gastrodia elata Blume (G. elata), commonly called Tianma in Chinese, is an important and notable traditional Chinese medicine (TCM), which has been used in China as an anticonvulsant, analgesic, sedative, anti-asthma, anti-immune drug since ancient times. The aim of this review is to provide an overview of the abundant efforts of scientists in developing analytical techniques and performing pharmacokinetic studies of G. elata and its constituents, including sample pretreatment methods, analytical techniques, absorption, distribution, metabolism, excretion (ADME) and influence factors to its pharmacokinetics...
July 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28694749/variability-of-antioxidant-and-biological-activities-of-rhus-tripartitum-related-to-phenolic-compounds
#14
Hanène Ben Miled, Mariem Saada, Ines Jallali, Zaineb Ben Barka, Mounira Tlili, Hichem Alimi, Mohsen Sakly, Khémais Ben Rhouma, Manef Abderrabba, Hafedh Abdelmelek, Olfa Tebourbi, Riadh Ksouri
Rhus species are known in traditional medicine for their therapeutic virtue and their extracts showed numerous important properties including antimalarial, antimicrobial, antiviral, and hypoglycemic and anticonvulsant activities. Rhus tripartitum (Ucria) is a medicinal plant widely used in Tunisia folk medicine against chronic diarrhea and gastric ulcer. This study was designed to examine in vitro and ex vivo antioxidant, anti-inflammatory and anticancer activities of four extracts of Rhus tripartitum root cortex with increasing solvent polarity (hexane, dichloromethane, methanol and water)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28692872/changes-in-the-content-of-fatty-acids-in-ca1-and-ca3-areas-of-the-hippocampus-of-krushinsky-molodkina-rats-after-single-and-fivefold-audiogenic-seizures
#15
Tatyana Savina, Alexander Aripovsky, Tatyana Kulagina
Audiogenic seizures (AS) are generalized seizures evoked by high frequency sounds. Since the hippocampus is involved in the generation and maintenance of seizures, the effect of AS on the composition and content of fatty acids in the CA1 and CA3 hippocampal areas of AS-susceptible Krushinsky-Molodkina (KM) rats on days 1, 3, and 14 after single and fivefold seizures were examined. The total content of all fatty acids in field СА1 was found to be lower compared with the control at all times of observation after both a single seizure or fivefold seizures...
June 24, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28691717/interaction-between-urethane-and-cannabinoid-cb1-receptor-agonist-and-antagonist-in-penicillin-induced-epileptiform-activity
#16
Gokhan Arslan, Sabiha Kubra Alici, Mustafa Ayyildiz, Erdal Agar
Previous experimental studies have shown that various anesthetics alter the effects of cannabinoid agonists and antagonists on the cardiac response to different stimuli. Since no data have shown an interaction between urethane and cannabinoid signaling in epilepsy, we examined the suitability of urethane with regard to testing the effects of a cannabinoid CB1 receptor agonist and an antagonist on penicillin-induced epileptiform activity in rats. Permanent screw electrodes for electrocorticographic (ECoG) recordings, and a permanent cannula for administration of the substances to the brain ventricles, were placed into the cranium of rats...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28691158/anticonvulsant-effect-of-cannabinoid-receptor-agonists-in-models-of-seizures-in-developing-rats
#17
Megan N Huizenga, Evan Wicker, Veronica C Beck, Patrick A Forcelli
OBJECTIVE: Although drugs targeting the cannabinoid system (e.g., CB1 receptor agonists) display anticonvulsant efficacy in adult animal models of seizures/epilepsy, they remain unexplored in developing animal models. However, cannabinoid system functions emerge early in development, providing a rationale for targeting this system in neonates. We examined the therapeutic potential of drugs targeting the cannabinoid system in three seizure models in developing rats. METHODS: Postnatal day (P) 10, Sprague-Dawley rat pups were challenged with the chemoconvulsant methyl-6,7-dimethoxy-4-ethyl-beta-carboline-3-carboxylate (DMCM) or pentylenetetrazole (PTZ), after treatment with either CB1/2 mixed agonist (WIN 55,212-2), CB1 agonist (arachidonyl-2'-chloroethylamide [ACEA]), CB2 agonist (HU-308), CB1 antagonist (AM-251), CB2 antagonist (AM-630), fatty acid amide hydrolase inhibitor (URB-597), or G protein-coupled receptor 55 agonist (O-1602)...
July 10, 2017: Epilepsia
https://www.readbyqxmd.com/read/28686819/differential-risk-of-increasing-psychotropic-polypharmacy-use-in-children-diagnosed-with-adhd-as-preschoolers
#18
Almut G Winterstein, Rene Soria-Saucedo, Tobias Gerhard, Christoph U Correll, Mark Olfson
OBJECTIVE: To characterize treatment trajectories in children newly diagnosed with attention-deficit/hyperactivity disorder (ADHD). METHODS: We utilized billing records of children aged 3 to 18 years in 28 US states' Medicaid programs between 1999 and 2006. Children entered the cohort at the first ADHD diagnosis (ICD-9-CM: 314.00) preceded by ≥ 6 months with no psychotropic medication use and no psychiatric diagnoses. We followed children for 5 years to assess use of (1) psychotropic polypharmacy (the use of ≥ 3 psychotropic medication classes), (2) antipsychotics, and (3) anticonvulsants...
July 5, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28686214/current-study-of-the-mechanism-of-action-of-the-potential-anti-epileptic-agent-q808
#19
Xiang Li, Hong-Jian Zhang, Qing Wang, Dian-Wen Zhang, Di Wu, Wei Li, Zhe-Shan Quan
Our previous study showed that the anticonvulsant Q808 might be effective against seizures induced by maximal electroshock, pentylenetetrazole (PTZ), isoniazid (ISO), thiosemicarbazide (THIO), and 3-mercaptopropionic acid (3-MP). In the present study, we explored the possible mechanism of action of Q808. Results obtained with high-performance liquid chromatography (HPLC) suggest that Q808 may affect neurotransmitter content in the brain, by specifically increasing GABA content in the rat hippocampus at doses of 40 mg/kg and 80 mg/kg, and by reducing the content of glutamate and glutamine in the rat thalamus at a dose of 80 mg/kg...
July 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28681755/dravet-syndrome-with-scn1b-gene-mutation-a-rare-entity
#20
Devdeep Mukherjee, Swapan Mukherjee, Prabal Niyogi, Manas Mahapatra
Early infantile epileptic encephalopathy has a grave outcome. Dravet syndrome (DS), characterized by early onset, refractory seizures, and intellectual deficit is one of the variants of the condition. SCN1B gene mutation is one of the lesser known variants of DS. Increased awareness of genetic analysis has increased the early diagnosis of DS for an early prognostication as well as genetic counselling of parents. We present the case of a 7-month old male child who started having recurrent febrile, and thereafter, afebrile seizures, following administration of a vaccination at 3 months...
July 2017: Neurology India
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