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https://www.readbyqxmd.com/read/28325299/potent-anti-seizure-effects-of-locked-nucleic-acid-antagomirs-targeting-mir-134-in-multiple-mouse-and-rat-models-of-epilepsy
#1
Cristina R Reschke, Luiz F Almeida Silva, Braxton A Norwood, Ketharini Senthilkumar, Gareth Morris, Amaya Sanz-Rodriguez, Ronán M Conroy, Lara Costard, Valentin Neubert, Sebastian Bauer, Michael A Farrell, Donncha F O'Brien, Norman Delanty, Stephanie Schorge, R Jeroen Pasterkamp, Felix Rosenow, David C Henshall
Current anti-epileptic drugs (AEDs) act on a limited set of neuronal targets, are ineffective in a third of patients with epilepsy, and do not show disease-modifying properties. MicroRNAs are small noncoding RNAs that regulate levels of proteins by post-transcriptional control of mRNA stability and translation. MicroRNA-134 is involved in controlling neuronal microstructure and brain excitability and previous studies showed that intracerebroventricular injections of locked nucleic acid (LNA), cholesterol-tagged antagomirs targeting microRNA-134 (Ant-134) reduced evoked and spontaneous seizures in mouse models of status epilepticus...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28324861/behavioral-improvements-in-a-valproic-acid-rat-model-of-autism-following-vitamin-d-supplementation
#2
Lin Du, Guolian Zhao, Zipeng Duan, Fan Li
The aim was to identify the effects of early vitamin D supplementation on autism-like behaviors (ASD) induced by valproic acid (VPA, an anti-convulsant and a mood stabilizer) in rats. 10 male Wistar rat pups with prenatal exposure to saline were in control group, and 20 Pups with prenatal exposure to VPA were divided into ASD-N (0.9% saline treated) and ASD-D group (vitamin D 80,000 IU/kg treated) on postnatal day 12. Self-grooming, olfactory habituation/dishabituation, and social interaction tests were conducted to assess social interaction, communication, and repetitive behaviors...
March 6, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28322166/glutamate-modulating-drugs-as-a-potential-therapeutic-strategy-in-obsessive-compulsive-disorder
#3
Zoya Marinova, De-Maw Chuang, Naomi Fineberg
OBJECTIVE: Obsessive-compulsive disorder (OCD) is a mental disease commonly associated with severe distress and impairment of social functioning. Serotonin reuptake inhibitors and/or cognitive behavioural therapy are the therapy of choice, however up to 40% of patients do not respond to treatment. Glutamatergic signalling has also been implicated in OCD. The aim of the current study was to review the clinical evidence for therapeutic utility of glutamate-modulating drugs as an augmentation or monotherapy in OCD patients...
March 20, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28287071/auditory-seizures-in-autoimmune-epilepsy-a-case-with-anti-thyroid-antibodies
#4
Claudia Varrasi, Domizia Vecchio, Luca Magistrelli, Gionata Strigaro, Laura Tassi, Roberto Cantello
In its classic presentation, Hashimoto's encephalopathy is an acute-subacute complex neuropsychiatric syndrome with cognitive impairment, hallucinations, myoclonus, tremor or ataxia, associated with elevated anti-thyroid antibodies. Corticoids and immunotherapy are dramatically effective. However, in some cases, not all the associated features are presented and this delays diagnosis and appropriate treatment. We describe a man with abrupt onset of recurrent auditory seizures resulting in refractory non-convulsive status epilepticus...
March 8, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28281034/synergistic-anticonvulsant-effects-of-pregabalin-and-amlodipine-on-acute-seizure-model-of-epilepsy-in-mice
#5
Itefaq Hussain Qureshi, Azra Riaz, Rafeeq Alam Khan, Afaq Ahmed Siddiqui
Status epilepticus is a life threatening neurological medical emergency. It may cause serious damage to the brain and even death in many cases if not treated properly. There is limited choice of drugs for the short term and long term management of status epilepticus and the dugs recommended for status epilepticus possess various side effects. The present study was designed to investigate synergistic anticonvulsant effects of pregabalin with amlodipine on acute seizure model of epilepsy in mice. Pentylenetetrazole was used to induce acute seizures which mimic status epilepticus...
March 9, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28274189/intracerebroventricular-administration-of-the-1%C3%A2-6-%C3%AE-d-glucan-lasiodiplodan-in-male-rats-prevents-d-penicillamine-induced-behavioral-alterations-and-lipoperoxidation-in-the-cortex
#6
Carlos Ricardo Maneck Malfatti, Fabio Seidel Dos Santos, Jéssica Wouk, Luiz Augusto da Silva, Renan Garcia Michel, André Luiz Snak, Tiago Czervinski, Mário A Alves da Cunha, Aneli M Barbosa, Robert F H Dekker
CONTEXT: Lasiodiplodan, an exocellular (1→6)-β-d-glucan of molecular weight >1.4 × 10(6) Da produced by MMPI strain of Lasiodiplodia theobromae (Pat.) Griffon & Maubl. (Brotyosphaeriaceae) is known to exhibit anti-proliferative activity on breast cancer cells (MCF-7), anticoagulant activity when sulfonylated, and reduction in transaminase activity when administered in rats. OBJECTIVE: The effect of intracerebroventricular (I.C.V) injection of lasiodiplodan on neurotoxicity and behavioural changes induced by d-penicillamine was investigated...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28242958/intranasal-delivery-of-mir-146a-mimics-delayed-seizure-onset-in-the-lithium-pilocarpine-mouse-model
#7
Hua Tao, Jianghao Zhao, Tingting Liu, Yujie Cai, Xu Zhou, Huaijie Xing, Yan Wang, Mingkang Yin, Wangtao Zhong, Zhou Liu, Keshen Li, Bin Zhao, Haihong Zhou, Lili Cui
Unveiling the key mechanism of temporal lobe epilepsy (TLE) for the development of novel treatments is of increasing interest, and anti-inflammatory miR-146a is now considered a promising molecular target for TLE. In the current study, a C57BL/6 TLE mouse model was established using the lithium-pilocarpine protocol. The seizure degree was evaluated according to the Racine scale, and level 5 was considered the threshold for generalized convulsions. Animals were sacrificed to analyze the hippocampus at three time points (2 h and 4 and 8 weeks after pilocarpine administration to evaluate the acute, latent, and chronic phases, resp...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28220535/interaction-of-approved-drugs-with-synaptic-vesicle-protein-2a
#8
Azeem Danish, Vigneshwaran Namasivayam, Anke C Schiedel, Christa E Müller
Levetiracetam (LEV) and its recently approved derivative brivaracetam are anti-epileptic drugs with a unique mechanism of action. The synaptic vesicle protein 2A (SV2A) was previously identified as their main target. In the current study, we tested a collection of 500 approved drugs for interaction with the human SV2A protein expressed in Chinese hamster ovary cells. Competition binding studies were performed using cell lysates with high SV2A expression and [(3) H]brivaracetam as a radioligand. A hit rate of 3% was obtained, defined as compounds that inhibited radioligand binding by more than 90% at a screening concentration of 20 μM...
February 21, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28212985/nonsteroidal-anti-inflammatory-drugs-in-clinical-and-experimental-epilepsy
#9
REVIEW
Beatrice Mihaela Radu, Florin Bogdan Epureanu, Mihai Radu, Paolo Francesco Fabene, Giuseppe Bertini
Current antiepileptic drugs have limited efficacy and provide little or no benefits in 30% of the patients. Given that a role for brain inflammation in epilepsy has been repeatedly reported in recent years, the potential of anti-inflammatory drugs should be explored in depth, as they may provide new therapeutical approaches in preventing or reducing epileptogenesis. Here, we review preclinical (both in vivo and in vitro) and clinical epilepsy studies in which nonsteroidal antiinflammatory drugs (NSAIDs), i...
February 9, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28195061/overview-of-the-preclinical-pharmacological-properties-of-nigella-sativa-black-seeds-a-complementary-drug-with-historical-and-clinical-significance
#10
E Z Dajani, T G Shahwan, N E Dajani
Nigella sativa (N. sativa, black seeds; or sometimes known by many other names such as the blessed seed by the Arabs, black cumin in the Holy Bible, black caraway and Kalonji in South Asia) has been traditionally used for many years not only as a food but also as complementary drug. It is the objective of this communication to review the evidence-based pre-clinical pharmacological actions of N. sativa as a basis of its existing and potential new human clinical uses. Primary PubMed literature searches and secondary Medline searches were conducted to define N...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28190698/therapeutic-effects-of-cannabinoids-in-animal-models-of-seizures-epilepsy-epileptogenesis-and-epilepsy-related-neuroprotection
#11
REVIEW
Evan C Rosenberg, Pabitra H Patra, Benjamin J Whalley
The isolation and identification of the discrete plant cannabinoids in marijuana revived interest in analyzing historical therapeutic claims made for cannabis in clinical case studies and anecdotes. In particular, sources as old as the 11th and 15th centuries claimed efficacy for crude marijuana extracts in the treatment of convulsive disorders, prompting a particularly active area of preclinical research into the therapeutic potential of plant cannabinoids in epilepsy. Since that time, a large body of literature has accumulated describing the effects of several of the >100 individual plant cannabinoids in preclinical models of seizures, epilepsy, epileptogenesis, and epilepsy-related neuroprotection...
February 9, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28138994/megakaryocyte-expansion-and-macrophage-infiltration-in-bone-marrow-of-rats-subchronically-treated-with-mnx-n-nitroso-environmental-degradation-product-of-munitions-compound-rdx-hexahydro-1-3-5-trinitro-1-3-5-triazine
#12
Sindhura Ramasahayam, Sridhar Jaligama, Sahar M Atwa, Joshua T Salley, Marissa Thongdy, Benny L Blaylock, Sharon A Meyer
Hexahydro-1-nitroso-3,5-dinitro-1,3,5-triazine (MNX), environmental degradation product of munitions hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), causes seizures in rats with acute oral exposure like parent RDX. Our previous studies have additionally reported hematotoxicity with acute MNX exposure manifested as myelosuppression, anemia and splenic hemosiderosis. This study explored whether MNX administered subchronically continued to target bone marrow to elicit peripheral blood cytopenia. Female Sprague-Dawley rats were gavaged daily for 4 or 6 weeks with 47 mg kg(-1)  day(-1) MNX (¼ LD50 ) or vehicle (5% dimethyl sulfoxide in corn oil) and hematological and clinical chemistry parameters, spleen weights, spleen and bone marrow histopathology and immunohistochemistry with ED1 anti-CD68 macrophage marker were evaluated 24 h after the last dose...
January 31, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28131199/first-reported-cases-of-anti-nmda-receptor-encephalitis-in-vietnamese-adolescents-and-adults
#13
Mai Nguyen Thi Hoang, Phu Nguyen Hoan, Tan Le Van, Angela McBride, Nghia Ho Dang Trung, Thanh Tran Tan, Hong Nguyen Thi Thu, Dorothee Heemskerk, Jeremy Day, Angela Vincent, Chau Nguyen Van Vinh, Guy Thwaites
INTRODUCTION: Anti-NMDA receptor encephalitis is increasingly recognised as an important differential diagnosis in patients with encephalitis of unknown aetiology. We report the first case series of patients diagnosed in Vietnam. METHODS: Samples of CSF from patients with presumed encephalitis but negative microbiological investigations, who exhibited dyskinesia, autonomic instability or psychosis were tested for antibodies against the NR1 subunit of the glutamate (type-NMDA) receptor using an indirect immunofluorescence assay...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28087952/an-observational-study-of-trigeminal-neuralgia-patients-taking-carbamazepine-during-the-fasting-month-of-ramadan
#14
A J Ajura, S H Lau, S Nur Suffia
INTRODUCTION: Trigeminal neuralgia is an agonising orofacial pain affecting unilaterally the distribution of the trigeminal nerve and it usually occurs in the middle and older age groups. Carbamazepine which is an anti-neuralgic as well as an anti-convulsant medication is the first line drug for treatment of trigeminal neuralgia. It is commonly taken as one tablet (200 mg) three times a day. MATERIALS AND METHODS: This is an observational study carried out from April to September 2014 to determine how Muslim patients on carbamazepine treatment for trigeminal neuralgia cope with their neuralgic pain...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28026006/extended-eeg-and-non-convulsive-status-epilepticus-benefit-over-routine-eeg
#15
E Eskioglou, C Stähli, A O Rossetti, J Novy
OBJECTIVE: EEG monitoring is increasingly used in critically ill patients, but impact on clinical outcome remains unclear. We aimed to investigate the benefit of repeated extended EEG in the prognosis of patients with non-convulsive status epilepticus (SE). MATERIALS & METHODS: We retrospectively collected 29 consecutive patients with non-convulsive SE without coma, who underwent repeated extended EEG between 2013 and 2015. We compared these patients with an historical age-matched group of 58 patients managed between 2011 and 2013 with routine EEG only...
December 27, 2016: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/27914529/agglutinin-isolated-from-arisema-heterophyllum-blume-induces-apoptosis-and-autophagy-in-a549-cells-through-inhibiting-pi3k-akt-pathway-and-inducing-er-stress
#16
Li-Xing Feng, Peng Sun, Tian Mi, Miao Liu, Wang Liu, Si Yao, Yi-Min Cao, Xiao-Lu Yu, Wan-Ying Wu, Bao-Hong Jiang, Min Yang, De-An Guo, Xuan Liu
Arisaema heterophyllum Blume is one of the three medicinal plants known as traditional Chinese medicine Rhizoma Arisaematis (RA). RA has been popularly used to treat patients with convulsions, inflammation, and cancer for a long time. However, the underlying mechanisms for RA effects are still unclear. The present study was designed to determine the cytotoxicity of agglutinin isolated from Arisema heterophyllum Blume (AHA) and explore the possible mechanisms in human non-small-cell lung cancer A549 cells. AHA with purity up to 95% was isolated and purified from Arisaema heterophyllum Blume using hydrophobic interaction chromatography...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27907002/chemical-composition-an-antioxidant-cytotoxic-and-microbiological-activity-of-the-essential-oil-from-the-leaves-of-aeollanthus-suaveolens-mart-ex-spreng
#17
Rosany Lopes Martins, Ranggel Carvalho Simões, Érica de Menezes Rabelo, Ana Luzia Ferreira Farias, Alex Bruno Lobato Rodrigues, Ryan da Silva Ramos, João Batista Fernandes, Lourivaldo da Silva Santos, Sheylla Susan Moreira da Silva de Almeida
Aeollanthus suaveolens species popularly known as catinga de mulata belongs to the Lamiaceae family. In the Amazon region, it is used in folk medicine for the treatment of gastritis, convulsions of epileptic origin, stomach pain and diarrhea in the form of tea and juice. Essential oils have analgesic, anti-inflammatory, and antimicrobial activity. This study evaluated the chemical composition of the A. suaveolens essential oil, and its cytotoxic, antimicrobial and antioxidant activity on Artemia salina Leach...
2016: PloS One
https://www.readbyqxmd.com/read/27887842/simple-n-n-dimethyl-phenylsulfonamides-show-potent-anticonvulsant-effect-in-two-standard-epilepsy-models
#18
Tomoyuki Tanaka, Nana Yajima, Tomoko Kiyoshi, Yoshiki Miura, Seiji Iwama
Optimization of the previously reported benzothiazine analogue A led to the identification of compound 1, which showed anti-convulsant activity in two golden standard animal models of seizure, the MES and scPTZ models. Structure-activity relationship investigation of compound 1 revealed compounds 2, 6 and 19 as attractive anti-epileptic drug (AED) candidates with potent anticonvulsant effect in both the MES and scPTZ models. As these compounds are structurally different from existing AEDs, determination of their mechanism of actions could provide clues to understanding current therapy-resistant seizures...
January 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27882170/acute-encephalitis-with-refractory-repetitive-partial-seizures-a-case-report-and-literature-review
#19
Bin Zhang, Lin Wang
A male 46 year-old patient was admitted to the Emergency Intensive Care Unit of Qinghai Provincial People's Hospital (Xining, China) in December 2008 with complaints of a headache and fever that had lasted for three days. In addition, the patient had experienced two general convulsions accompanied with consciousness disorders for 7 h. Although the patient's clinical manifestations, laboratory tests and cerebrospinal fluid examinations were consistent with numerous features associated with acute encephalitis, the patient's clinical course was different to that of acute encephalitis, and the prognosis was poor...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27875769/status-epilepticus-in-pregnant-women-with-epilepsy-after-valproate-adjustment-a-case-series
#20
Mengqian Wu, Nanya Hao, Bo Yan, Xiaosa Chi, Dong Zhou
PURPOSE: Valproate is an effective wide-spectrum anti-epileptic drug that is also known to be teratogenic. Its administration in epileptic women remains controversial. This report aims to draw more attention to valproate adjustment before and during pregnancy. METHODS: We collected medical records of pregnant women with epilepsy at West China Hospital in Chengdu, China who developed status epilepticus during pregnancy after valproate withdrawal or reduction in dose from January 2013 to July 2015...
December 2016: Seizure: the Journal of the British Epilepsy Association
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