keyword
MENU ▼
Read by QxMD icon Read
search

Epileptogenesis

keyword
https://www.readbyqxmd.com/read/28331471/manipulating-micrornas-in-murine-models-targeting-the-multi-targeting-in-epilepsy
#1
David C Henshall
MicroRNAs are small noncoding RNAs that work posttranscriptionally to negatively regulate protein levels. They influence neuronal and glial structure and function, neuroinflammatory signaling, cell death, neurogenesis, and other processes relevant to epileptogenesis. Functional studies using oligonucleotide inhibitors (antagomirs) and mimics (agomirs) to modulate microRNAs in rat and mouse models of epilepsy show effects on evoked and spontaneous seizures and attendant neuropathology. The present review summarizes recent findings and points to gaps in our knowledge of the underlying mechanisms and directions for the future...
January 2017: Epilepsy Currents
https://www.readbyqxmd.com/read/28330876/electrocorticographic-dynamics-as-a-novel-biomarker-in-five-models-of-epileptogenesis
#2
Dan Z Milikovsky, Itai Weissberg, Lyna Solomon-Kamintsky, Kristina Lippmann, Osnat Schefenbauer, Federica Frigerio, Massimo Rizzi, Liron Sheintuch, Daniel Zelig, Jonathan Ofer, Annamaria Vezzani, Alon Friedman
Post injury epilepsy (PIE) is a devastating sequela of various brain insults. While recent studies offer novel insights into the mechanisms underlying epileptogenesis and discover potential preventive treatments, the lack of PIE biomarkers hinders the clinical implementation of such treatments. Here we explored the biomarker potential of different electrographic features in five models of PIE. Electrocorticographic or intrahippocampal recordings of epileptogenesis (from the insult to the first spontaneous seizure) from two laboratories were analyzed in 3 mouse and 2 rat PIE models...
March 22, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28327340/epileptic-activity-in-alzheimer-s-disease-causes-and-clinical-relevance
#3
REVIEW
Keith A Vossel, Maria C Tartaglia, Haakon B Nygaard, Adam Z Zeman, Bruce L Miller
Epileptic activity is frequently associated with Alzheimer's disease; this association has therapeutic implications, because epileptic activity can occur at early disease stages and might contribute to pathogenesis. In clinical practice, seizures in patients with Alzheimer's disease can easily go unrecognised because they usually present as non-motor seizures, and can overlap with other symptoms of the disease. In patients with Alzheimer's disease, seizures can hasten cognitive decline, highlighting the clinical relevance of early recognition and treatment...
April 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28316319/epileptic-spasms-in-paediatric-post-traumatic-epilepsy-at-a-tertiary-referral-centre
#4
Jun T Park, Harry T Chugani
To recognize epileptic spasms (ES) as a seizure type after traumatic brain injury (TBI), accidental or non-accidental, in infants and children. In the process, we aim to gain some insight into the mechanisms of epileptogenesis in ES. A retrospective electronic chart review was performed at the Children's Hospital of Michigan from 2002 to 2012. Electronic charts of 321 patients were reviewed for evidence of post-traumatic epilepsy. Various clinical variables were collected including age at TBI, mechanism of trauma, severity of brain injury, electroencephalography/neuroimaging data, and seizure semiology...
March 17, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28299629/inhibition-of-calcineurin-a-by-fk506-suppresses-seizures-and-reduces-the-expression-of-glun2b-in-membrane-fraction
#5
Yuetao Wen, Pengfei Fu, Kunlun Wu, Kaichuang Si, Yanfeng Xie, Wei Dan, Yan Zhan, Quanhong Shi
FK506, a calcineurin inhibitor, shows neuroprotective effects and has been associated with neurodegenerative diseases. Calcineurin A (CaNA), a catalytic subunit of calcineurin, mediates the dephosphorylation of various proteins. N-methyl-D-aspartate receptor (GluN) is closely related to epileptogenesis, and various phosphorylation sites of GluN2B, a regulatory subunit of the GluN complex, have different functions. Thus, we hypothesized that one of the potential anti-epileptic mechanisms of FK506 is mediated by its ability to promote the phosphorylation of GluN2B and reduce the expression of GluN2B in membrane fraction by down-regulating CaNA...
March 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28293101/new-developments-in-the-management-of-partial-onset-epilepsy-role-of-brivaracetam
#6
REVIEW
Giangennaro Coppola, Giulia Iapadre, Francesca Felicia Operto, Alberto Verrotti
Currently, a number of novel anticonvulsant drugs, the so-called third generation, are in various stages of development. Several of them are already available or in ongoing clinical trials. These new compounds should take advantage of new insights into the basic pathophysiology of epileptogenesis, drug metabolism and drug interactions. Many of them still need to be further evaluated mainly in real-world observational trials and registries. Among newer anticonvulsant drugs for partial-onset seizures (POSs), rufinamide, lacosamide, eslicarbazepine and perampanel are those new treatment options for which more substantial clinical evidence is currently available, both in adults and, to some extent, in children...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28292736/increased-metalloproteinase-activity-in-the-hippocampus-following-status-epilepticus
#7
Deepti Dubey, Paulette A McRae, Elyse K Rankin-Gee, Esther Baranov, Luke Wandrey, Stephanie Rogers, Brenda E Porter
Increased neuronal plasticity and neuronal cell loss has been implicated in the development of epilepsy following injury. Parvalbumin fast spiking inhibitory interneurons have a robust extracellular matrix coating their cell bodies and the proximal dendrites called the perineuronal net (PNN). The role of the PNN is not clear but it has been implicated in closing of the critical period, altering seizure thresholds and providing neuronal protection from oxidative stress. The PNN is susceptible to degradation following a prolonged seizure and there is an increase in proteolytic-fragments of the PNN enriched proteoglycan aggrecan (Dzwonek et al...
March 1, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28286184/altered-functional-efficacy-of-hippocampal-interneuron-during-epileptogenesis-following-febrile-seizures
#8
Yeon Hee Yu, Kahyun Lee, Dal Sik Sin, Kyung-Ho Park, Dae-Kyoon Park, Duk-Soo Kim
Febrile seizure (FS) is the most common seizure type in infants and young children. FS may induce functional changes in the hippocampal circuitries. Abnormality of excitatory and inhibitory neurotransmissions was previously related to wide-spread seizure attack in the hippocampus following recurrent seizure onset. To clarify the involvement of expressional changes and functional alterations of hippocampal interneurons with epileptogenesis following FS, we investigated long-term effects following recurrent seizure in a hyperthermia-induced seizure animal model...
March 7, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28284046/breaking-the-cycle-a-comparison-between-intravenous-immunoglobulins-and-high-dosage-prednisone-in-the-treatment-of-medically-intractable-epilepsy-in-children
#9
Richard Tang-Wai, Janette Mailo, Bernard Rosenblatt
PURPOSE: Because immune mediated mechanisms are suspected in epileptogenesis, IVIg and corticosteroids have been used as alternatives to treat refractory seizures. We present our experience treating intractable epileptic children with IVIg and prednisone. METHODS: Children with intractable epilepsy treated with prednisone or IVIg between 2005-2016 were reviewed retrospectively. Children with infantile spasms and autoimmune epilepsy were excluded. Data analyzed include epilepsy type and etiology, duration of epilepsy prior to treatment, seizure outcome, time to best seizure outcome, and adverse effects...
March 6, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28281500/recent-advances-in-epilepsy-research-in-india
#10
Aparna B Dixit, Jyotirmoy Banerjee, P Sarat Chandra, Manjari Tripathi
There are more than 10 million persons with epilepsy (PWE) in India. Despite availability of antiepileptic drugs (AEDs), there is a large treatment gap varying from 50 to 70% among PWE. For treatable epilepsy, this gap can be attributed to poor education, poverty, cultural beliefs, stigma, and poor healthcare infrastructure; whereas for chronic epilepsy, this gap can be attributed to lack of proper diagnosis and treatment. To prevent, treat, and cure epilepsy, researchers worldwide have made exciting advances across all areas of epilepsy research...
2017: Neurology India
https://www.readbyqxmd.com/read/28279785/epigenetic-interventions-for-epileptogenesis-a-new-frontier-for-curing-epilepsy
#11
REVIEW
Iyan Younus, Doodipala Samba Reddy
This article highlights the emerging therapeutic potential of specific epigenetic modulators as promising antiepileptogenic or disease-modifying agents for curing epilepsy. Currently, there is an unmet need for antiepileptogenic agents that truly prevent the development of epilepsy in people at risk. There is strong evidence that epigenetic signaling, which exerts high fidelity regulation of gene expression, plays a crucial role in the pathophysiology of epileptogenesis and chronic epilepsy. These modifications are not hard-wired into the genome and are constantly reprogrammed by environmental influences...
March 6, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28272506/a-murine-model-to-study-epilepsy-and-sudep-induced-by-malaria-infection
#12
Paddy Ssentongo, Anna E Robuccio, Godfrey Thuku, Derek G Sim, Ali Nabi, Fatemeh Bahari, Balaji Shanmugasundaram, Myles W Billard, Andrew Geronimo, Kurt W Short, Patrick J Drew, Jennifer Baccon, Steven L Weinstein, Frank G Gilliam, José A Stoute, Vernon M Chinchilli, Andrew F Read, Bruce J Gluckman, Steven J Schiff
One of the largest single sources of epilepsy in the world is produced as a neurological sequela in survivors of cerebral malaria. Nevertheless, the pathophysiological mechanisms of such epileptogenesis remain unknown and no adjunctive therapy during cerebral malaria has been shown to reduce the rate of subsequent epilepsy. There is no existing animal model of postmalarial epilepsy. In this technical report we demonstrate the first such animal models. These models were created from multiple mouse and parasite strain combinations, so that the epilepsy observed retained universality with respect to genetic background...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28269163/structural-and-functional-changes-during-epileptogenesis-in-the-mouse-model-of-medial-temporal-lobe-epilepsy
#13
Yvan Dietrich, Pierre-Antoine Eliat, Gabriel Dieuset, Herve Saint-Jalmes, Charles Pineau, Fabrice Wendling, Benoit Martin
An important issue in epilepsy research is to understand the structural and functional modifications leading to chronic epilepsy, characterized by spontaneous recurrent seizures, after initial brain insult. To address this issue, we recorded and analyzed electroencephalography (EEG) and quantitative magnetic resonance imaging (MRI) data during epileptogenesis in the in vivo mouse model of Medial Temporal Lobe Epilepsy (MTLE, kainate). Besides, this model of epilepsy is a particular form of drug-resistant epilepsy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267625/diffusion-tensor-mri-shows-progressive-changes-in-the-hippocampus-and-dentate-gyrus-after-status-epilepticus-in-rat-histological-validation-with-fourier-based-analysis
#14
Raimo A Salo, Tuukka Miettinen, Teemu Laitinen, Olli Gröhn, Alejandra Sierra
Imaging markers for monitoring disease progression, recovery, and treatment efficacy are a major unmet need for many neurological diseases, including epilepsy. Recent evidence suggests that diffusion tensor imaging (DTI) provides high microstructural contrast even outside major white matter tracts. We hypothesized that in vivo DTI could detect progressive microstructural changes in the dentate gyrus and the hippocampal CA3bc in the rat brain after status epilepticus (SE). To test this hypothesis, we induced SE with systemic kainic acid or pilocarpine in adult male Wistar rats and subsequently scanned them using in vivo DTI at five time-points: prior to SE, and 10, 20, 34, and 79 days post SE...
March 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28253618/discovery-of-benzenesulfonamides-with-potent-human-carbonic-anhydrase-inhibitory-and-effective-anticonvulsant-action-design-synthesis-and-pharmacological-assessment
#15
Chandra Bhushan Mishra, Shikha Kumari, Andrea Angeli, Simona Maria Monti, Martina Buonanno, Manisha Tiwari, Claudiu T Supuran
We report two series of novel benzenesulfonamide derivatives acting as effective carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The synthesized compounds were tested against human (h) isoforms hCA I, hCA II, hCA VII, and hCA XII. The first series of compounds, 4-(3-(2-(4-substitued piperazin-1-yl)ethyl)ureido)benzenesulfonamides, showed low nanomolar inhibitory action against hCA II, being less effective against the other isoforms. The second series, 2-(4-substitued piperazin-1-yl)-N-(4-sulfamoylphenyl)acetamide derivatives, showed low nanomolar inhibitory activity against hCA II and hCA VII, isoforms involved in epileptogenesis...
March 14, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28237317/a-calpain-inhibitor-ameliorates-seizure-burden-in-an-experimental-model-of-temporal-lobe-epilepsy
#16
Philip M Lam, Jessica Carlsen, Marco I González
In this study, we used the pilocarpine model of epilepsy to evaluate the involvement of calpain dysregulation on epileptogenesis. Detection of spectrin breakdown products (SBDPs, a hallmark of calpain activation) after induction of pilocarpine-induced status epilepticus (SE) and before appearance of spontaneous seizure suggested the existence of sustained calpain activation during epileptogenesis. Acute treatment with a cell permeable inhibitor of calpain, MDL-28170, resulted in a partial but significant reduction on seizure burden...
February 22, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28235602/status-epilepticus-does-not-induce-acute-brain-inflammatory-response-in-the-amazon-rodent-proechimys-an-animal-model-resistant-to-epileptogenesis
#17
REVIEW
Carla A Scorza, Marcia J G Marques, Sérgio Gomes da Silva, Maria da Graça Naffah-Mazzacoratti, Fulvio A Scorza, Esper A Cavalheiro
Mesial temporal lobe epilepsy is a serious brain disorder in adults that is often preceded by an initial brain insult, such as status epilepticus (SE), that after a latent period leads to recurrent seizures. Post-SE models are widely used for studies on epileptogenic processes. Previous findings of our laboratory suggested that the Neotropical rodents Proechimys exhibit endogenous antiepileptogenic mechanisms in post-SE models. Strong body of research supports that SE triggers a rapid and dramatic upregulation of inflammatory mediators and vascular endothelial growth factor (VEGF)...
February 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28227392/structural-and-functional-changes-during-epileptogenesis-in-the-mouse-model-of-medial-temporal-lobe-epilepsy
#18
Yvan Dietrich, Pierre-Antoine Eliat, Gabriel Dieuset, Herve Saint-Jalmes, Charles Pineau, Fabrice Wendling, Benoit Martin, Yvan Dietrich, Pierre-Antoine Eliat, Gabriel Dieuset, Herve Saint-Jalmes, Charles Pineau, Fabrice Wendling, Benoit Martin, Pierre-Antoine Eliat, Charles Pineau, Benoit Martin, Gabriel Dieuset, Yvan Dietrich, Herve Saint-Jalmes, Fabrice Wendling
An important issue in epilepsy research is to understand the structural and functional modifications leading to chronic epilepsy, characterized by spontaneous recurrent seizures, after initial brain insult. To address this issue, we recorded and analyzed electroencephalography (EEG) and quantitative magnetic resonance imaging (MRI) data during epileptogenesis in the in vivo mouse model of Medial Temporal Lobe Epilepsy (MTLE, kainate). Besides, this model of epilepsy is a particular form of drug-resistant epilepsy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225808/epileptogenesis-in-organotypic-hippocampal-cultures-has-limited-dependence-on-culture-medium-composition
#19
Jing Liu, Yero Saponjian, Mark M Mahoney, Kevin J Staley, Yevgeny Berdichevsky
Rodent organotypic hippocampal cultures spontaneously develop epileptiform activity after approximately 2 weeks in vitro and are increasingly used as a model of chronic post-traumatic epilepsy. However, organotypic cultures are maintained in an artificial environment (culture medium), which contains electrolytes, glucose, amino acids and other components that are not present at the same concentrations in cerebrospinal fluid (CSF). Therefore, it is possible that epileptogenesis in organotypic cultures is driven by these components...
2017: PloS One
https://www.readbyqxmd.com/read/28225153/the-effects-of-c5ar1-on-leukocyte-infiltration-following-pilocarpine-induced-status-epilepticus
#20
Melissa J Benson, Silvia Manzanero, Karin Borges
This study aimed to determine the role C5aR1 plays in mediating immune responses acutely after pilocarpine-induced status epilepticus (SE), specifically those of brain-infiltrating leukocytes. Three days following pilocarpine SE, we determined by flow cytometry the brain immune cell phenotypes and measured key proinflammatory and antiinflammatory cytokine expression by infiltrating leukocytes and microglia in C5aR1-deficient and wild-type mice. Absence of C5aR1 reduced by 47% the numbers of Ly6G(+) neutrophils in the brains of No-SE mice and decreased neutrophil entry after SE to levels found in wild-type brains that did not undergo SE (No-SE)...
February 22, 2017: Epilepsia
keyword
keyword
12434
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"