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Anticonvulsants, anti-epileptics

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https://www.readbyqxmd.com/read/28521703/recent-advances-in-antiepileptic-herbal-medicine
#1
Stephen M Manchishi
Epilepsy is one of the most common neurological disorders worldwide, with about 80 percent of cases thought to be in developing nations where it is mostly linked to superstition. Most cases of epilepsy are idiopathic, though brain injury, brain tumor, severe systemic infection and genetic mutations have been implicated in some cases. Anti-epileptic drugs (AEDs) currently in existence are not sufficient to contain the disorder. This is not only because of their limited availability and cost, but also their adverse side effects...
May 18, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28479741/effect-of-naringenin-a-naturally-occurring-flavanone-against-pilocarpine-induced-status-epilepticus-and-oxidative-stress-in-mice
#2
Sheeba Shakeel, Muneeb U Rehman, Nahida Tabassum, Umar Amin, Manzoor Ur Rahman Mir
BACKGROUND: Epilepsy is a disorder of the central nervous system characterized by recurrent seizures. It is a very common disease in which approximately 30% of patients do not respond favourably to treatment with anticonvulsants. Oxidative stress is associated with neuronal damage arising from epileptic seizures. The present study investigated the effects of naringenin in pilocarpine-induced epilepsy in mice. Naringenin, one of the most frequently occurring flavanone in citrus fruits, was evaluated for its shielding effect against the pilocarpine induced behavioural, oxidative and histopathological alterations in rodent model of epilepsy...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28388948/investigating-the-potential-of-the-anti-epileptic-drug-imepitoin-as-a-treatment-for-co-morbid-anxiety-in-dogs-with-idiopathic-epilepsy
#3
Rowena M A Packer, Luisa De Risio, Holger A Volk
BACKGROUND: Behavioural changes associated with idiopathic epilepsy (IE) have been identified in dogs, with fear and anxiety-related problems seen in both drug-naïve dogs and dogs treated with anti-epileptic drugs (AEDs). Treating anxiety-related behaviour in dogs with IE may be challenging, as seizures are a contraindication for many conventional anxiolytic drugs. In addition, many dogs with IE are already treated with AEDs to reduce their seizure frequency, which may have negative effects if used in polytherapy...
April 7, 2017: BMC Veterinary Research
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
#4
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/28249817/the-direct-actions-of-cannabidiol-and-2-arachidonoyl-glycerol-at-gabaa-receptors
#5
T Bakas, P S van Nieuwenhuijzen, S O Devenish, I S McGregor, J C Arnold, M Chebib
Cannabidiol (CBD) is a major non-intoxicating component of cannabis and possesses anti-epileptic, anxiolytic and anti-hyperalgesic properties. The mechanism of action of CBD in producing such effects remains unclear. Despite evidence that some endogenous and synthetic cannabinoids interact with GABAA receptors, no-one has yet investigated the effects of CBD. Here we used two-electrode voltage clamp electrophysiology to compare the actions of CBD with those of the major central endocannabinoid, 2-arachidonoyl glycerol (2-AG) on human recombinant GABAA receptors (synaptic α1-6βγ2 and extrasynaptic α4β2δ) expressed on Xenopus oocytes...
May 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28088732/apelin-13-protects-rat-primary-cortical-glia-neuron-co-culture-against-pentylenetetrazole-induced-toxicity
#6
Taj Pari Kalantaripour, Saeed Esmaeili-Mahani, Vahid Sheibani, Hamid Najafipour, Majid Asadi-Shekaari M
In spite of recent advances in the treatment of epilepsy, up to 35% of people living with the condition do not respond to accessible anti-epileptic drugs (AEDs) and continue to experience regular, devastating and potentially life-threatening seizures. Neuronal death is a significant feature of epilepsy in humans and experimental models. It has been reported that apelin, an endogenous ligand for the angiotensin-1-like receptor (APJ), has anticonvulsive as well as protective effects in some neurodegenerative situations...
March 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27915186/role-of-the-purinergic-signaling-in-epilepsy
#7
REVIEW
Marek Cieślak, Andrzej Wojtczak, Michał Komoszyński
Adenine nucleotides and adenosine are signaling molecules that activate purinergic receptors P1 and P2. Activation of A1 adenosine receptors has an anticonvulsant action, whereas activation of A2A receptors might initiate seizures. Therefore, a significant limitation to the use of A1 receptor agonists as drugs in the CNS might be their peripheral side effects. The anti-epileptic activity of adenosine is related to its increased concentration outside the cell. This increase might result from the inhibition of the equilibrative nucleoside transporters (ENTs)...
February 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27887842/simple-n-n-dimethyl-phenylsulfonamides-show-potent-anticonvulsant-effect-in-two-standard-epilepsy-models
#8
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/27860117/development-of-a-core-outcome-set-for-epilepsy-in-pregnancy-e-core-a-national-multi-stakeholder-modified-delphi-consensus-study
#9
B H Al Wattar, K Tamilselvan, R Khan, A Kelso, A Sinha, A M Pirie, D McCorry, K S Khan, S Thangaratinam
OBJECTIVE: To develop a set of core outcomes for studies on pregnant women with epilepsy. DESIGN: Delphi consensus study. POPULATION: Healthcare professionals, and patient representatives with lived experience of epilepsy in the UK. METHODS: We used a modified Delphi method and a consultation meeting to achieve consensus. Potential outcomes were identified by systematic review, and were scored using a Likert scale anchored between 1 (least important) and 5 (most important)...
November 16, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27825017/a-pharmacological-overview-of-lamotrigine-for-the-treatment-of-epilepsy
#10
REVIEW
Venkata Ramesh Yasam, Satya Lavanya Jakki, V Senthil, M Eswaramoorthy, S Shanmuganathan, K Arjunan, M J Nanjan
Epilepsy is one of the most common neurological disorders, affecting about 2% of the population worldwide. Lamotrigine (LTG) is a second generation anti-epileptic drug (AED) with broad spectrum of activity, a favourable side-effect profile, simpler dosing than earlier drugs and efficacious in diverse epilepsy syndromes. Areas covered: The present review focuses on pharmacodynamics, pharmacokinetics, clinical efficacy, safety and tolerability of LTG and its effect on cognition, psychiatry, quality of life, women and pregnancy along with effect of enzyme inducing and enzyme inhibiting drugs over LTG and their effect on serum level fluctuations by collecting data from various studies over the years until 2016...
December 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/27757273/evaluation-of-anti-epileptic-activity-of-leaf-extracts-of-punica-granatum-on-experimental-models-of-epilepsy-in-mice
#11
Gollapalle L Viswanatha, Marikunte V Venkataranganna, Nunna Bheema Lingeswara Prasad, Godavarthi Ashok
OBJECTIVES: This study was aimed to examine the anti-epileptic activity of leaf extracts of Punica granatum in experimental models of epilepsy in Swiss albino mice. MATERIALS AND METHODS: Petroleum ether leaf extract of P. granatum (PLPG), methanolic LPG (MLPG), and aqueous LPG (ALPG) extracts of P. granatum leaves was initially evaluated against 6-Hz-induced seizure model; the potent extract was further evaluated against maximal electroshock (MES) and pentylenetetrazole (PTZ)-induced convulsions...
September 2016: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/27566615/study-of-the-anti-seizure-effects-of-low-frequency-stimulation-following-kindling-a-review-of-the-cellular-mechanism-related-to-the-anti-seizure-effects-of-low-frequency-electrical-stimulation
#12
REVIEW
Zohreh Ghotbeddin, Mahyar Janahmadi, Ali Yadollahpour
Epilepsy affects about 1-2 % of world population as a chronic neurological disease that is manifested by repeated and consecutive seizures (Grone and Baraban, Nat Neurosci 18(3):339-343, 2015). There is no definitive therapy for epilepsy and antiepileptic drugs cannot offer a permanent and definitive cure for epilepsy, and most epileptic patients become drug resistant (Sasa, J Pharmacol Sci 100(5):487-494, 2006). Surgery and removal of the epileptic focus is a substitute method for treating drug-resistant patients and epilepsy surgery of either side of the brain improves seizure control...
January 2017: Neurological Sciences
https://www.readbyqxmd.com/read/27566463/recovery-from-a-possible-cytomegalovirus-meningoencephalitis-induced-apparent-brain-stem-death-in-an-immunocompetent-man-a-case-report
#13
Theresia Monica Rahardjo, Tinni Trihartini Maskoen, Ike Sri Redjeki
BACKGROUND: Recovery from cytomegalovirus meningoencephalitis with brain stem death in an immunocompetent patient is almost impossible. We present a remarkable recovery from a possible cytomegalovirus infection in an immunocompetent man who had severe neurological syndromes, suggesting brain stem death complicated by pneumonia and pleural effusion. CASE PRESENTATION: A 19-year-old Asian man presented at our hospital's emergency department with reduced consciousness and seizures following high fever, headache, confusion, and vomitus within a week before arrival...
August 26, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27531652/the-implantation-effect-delay-in-seizure-occurrence-with-implantation-of-intracranial-electrodes
#14
M A Lane, C A Kahlenberg, Z Li, K Kulandaival, K L Secore, V M Thadani, K A Bujarski, E J Kobylarz, D W Roberts, T D Tosteson, B C Jobst
OBJECTIVE: A transient decrease in seizure frequency has been identified during therapeutic brain stimulation trials with stimulator in patients in the inactive sham group. This study was performed to examine whether the implantation of intracranial electrodes decreases seizure occurrence and explores factors that may be associated. METHODS: A retrospective review of 193 patients was performed, all evaluated with both scalp video EEG monitoring and intracranial EEG (iEEG) monitoring...
January 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/27522536/the-effect-of-leptin-ghrelin-and-neuropeptide-y-on-serum-tnf-%C3%AE-il-1%C3%AE-il-6-fgf-2-galanin-levels-and-oxidative-stress-in-an-experimental-generalized-convulsive-seizure-model
#15
Berrin Oztas, Deniz Sahin, Hale Kir, Fatma Ceyla Eraldemir, Mert Musul, Sevinç Kuskay, Nurbay Ates
The objective of this study is to examine the effects of the endogenous ligands leptin, ghrelin, and neuropeptide Y (NPY) on seizure generation, the oxidant/antioxidant balance, and cytokine levels, which are a result of immune response in a convulsive seizure model. With this goal, Wistar rats were divided into 5 groups-Group 1: Saline, Group 2: Saline+PTZ (65mg/kg), Group 3: leptin (4mg/kg)+PTZ, Group 4: ghrelin (80μg/kg)+PTZ, and Group 5: NPY (60μg/kg)+PTZ. All injections were delivered intraperitoneally, and simultaneous electroencephalography (EEG) records were obtained...
February 2017: Neuropeptides
https://www.readbyqxmd.com/read/27415827/very-long-term-outcome-of-non-surgically-treated-patients-with-temporal-lobe-epilepsy-with-hippocampal-sclerosis-a-retrospective-study
#16
Tsugiko Kurita, Kotaro Sakurai, Youji Takeda, Toru Horinouchi, Ichiro Kusumi
OBJECTIVE: Surgical intervention can result in complete seizure remission rates of up to 80% in patients with temporal lobe epilepsy with hippocampal sclerosis (TLE-HS). However, certain patients cannot be treated surgically for various reasons. We analyzed the very long-term clinical outcomes of patients with TLE-HS who could not be treated surgically. METHODS: Subjects were selected from among patients with TLE-HS who were actively followed up for >10 years and treated with medication without surgical treatment...
2016: PloS One
https://www.readbyqxmd.com/read/27267376/aberrant-epilepsy-associated-mutant-nav1-6-sodium-channel-activity-can-be-targeted-with-cannabidiol
#17
Reesha R Patel, Cindy Barbosa, Tatiana Brustovetsky, Nickolay Brustovetsky, Theodore R Cummins
Mutations in brain isoforms of voltage-gated sodium channels have been identified in patients with distinct epileptic phenotypes. Clinically, these patients often do not respond well to classic anti-epileptics and many remain refractory to treatment. Exogenous as well as endogenous cannabinoids have been shown to target voltage-gated sodium channels and cannabidiol has recently received attention for its potential efficacy in the treatment of childhood epilepsies. In this study, we further investigated the ability of cannabinoids to modulate sodium currents from wild-type and epilepsy-associated mutant voltage-gated sodium channels...
August 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27261619/neuroinformatics-analyses-reveal-gabat-and-ssadh-as-major-proteins-involved-in-anticonvulsant-activity-of-valproic-acid
#18
Sakshi Piplani, Prabhakar Kumar Verma, Ajit Kumar
The unequivocal hypotheses about anticonvulsant activity of valproic acid (VPA) have always been a basic hurdle in designing next generation neurotherapeutics, particularly the anti-epileptic drugs. The present study reports about a comprehensive in-silico investigation into qualitative and quantitative binding of VPA and corresponding natural ligands of four major enzymes involved in neurotransmissions, namely-GABA transaminase (GABAt), α-keto glutarate dehydrogenase (α-KGDH), Succinate Semialdehyde dehydrogenase (SSADH) and Glutamate Decarboxylase (GAD), respectively...
July 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27261605/saikosaponin-a-functions-as-anti-epileptic-effect-in-pentylenetetrazol-induced-rats-through-inhibiting-mtor-signaling-pathway
#19
Ming Ye, Yong-Feng Bi, Li Ding, Wei-Wei Zhu, Wei Gao
OBJECTIVE: Saikosaponin a (SSa), which is one major bioactive compound isolated from radix bupleuri, has been demonstrated to exhibit the properties of anticonvulsant and antiepileptic in few reports. This study aims to clarify the molecular mechanism by which SSa protects against pentylenetetrazol (PTZ) induced epileptic seizure. METHODS: PTZ induced rat and hippocampal neuron were established. Treated rats or hippocampal neuron with SSa, and mTOR, P70S6K, IL-1β and TNF-α were then determined...
July 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27207115/pharmacological-treatment-of-pain-in-cancer-patients-the-role-of-adjuvant-analgesics-a-systematic-review
#20
REVIEW
Marieke H J van den Beuken-van Everdingen, Alexander de Graeff, Joost L M Jongen, Denise Dijkstra, Irina Mostovaya, Kris C Vissers
CONTEXT: In patients with cancer, pain is one of the most feared and burdensome symptoms. Adjuvant analgesics are an important cornerstone on which treatment of pain in patients with cancer is based. OBJECTIVES: To update our guidelines for the treatment of pain in patients with cancer, we performed a systematic review on the use of adjuvant analgesics in pain in cancer. METHODS: A systematic search of the literature was performed searching for articles that studied the effect of (1) antidepressants, (2) anti-epileptics, (3) N-methyl-d-aspartate (NMDA) receptor antagonists, and (4) other adjuvant analgesics in patients with cancer pain and described their effects on pain intensity and/or side effects...
March 2017: Pain Practice: the Official Journal of World Institute of Pain
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