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Inflammation and epilepsy

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https://www.readbyqxmd.com/read/28716058/srf-modulates-seizure-occurrence-activity-induced-gene-transcription-and-hippocampal-circuit-reorganization-in-the-mouse-pilocarpine-epilepsy-model
#1
Pascal Lösing, Cristina Elena Niturad, Merle Harrer, Christopher Meyer Zu Reckendorf, Theresa Schatz, Daniela Sinske, Holger Lerche, Snezana Maljevic, Bernd Knöll
A hallmark of temporal lobe epilepsy (TLE) is hippocampal neuronal demise and aberrant mossy fiber sprouting. In addition, unrestrained neuronal activity in TLE patients induces gene expression including immediate early genes (IEGs) such as Fos and Egr1.We employed the mouse pilocarpine model to analyze the transcription factor (TF) serum response factor (SRF) in epileptogenesis, seizure induced histopathology and IEG induction. SRF is a neuronal activity regulated TF stimulating IEG expression as well as nerve fiber growth and guidance...
July 17, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28689437/the-effect-of-antiepileptic-drugs-on-the-kidney-function-and-structure
#2
S Hamed
Abtract Introduction: Long-term use of antiepileptic drugs (AEDs) is associated with number of somatic conditions. Data from experimental, cross-sectional and prospective studies have evidence for the deleterious effect of some AEDs on the kidney. Areas Covered: This review summarized the current knowledge of the effect of AEDs on the kidney including evidence and mechanisms. Fanconi syndrome was reported with valproate (VPA) therapy in severely disabled children with epilepsy. Renal tubular acidosis and urolithiasis were reported with acetazolamide, topirmate and zonisamide, drugs with carbonic anhydrase inhibition properties...
July 10, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28675563/neuroinflammatory-targets-and-treatments-for-epilepsy-validated-in-experimental-models
#3
Eleonora Aronica, Sebastian Bauer, Yuri Bozzi, Matteo Caleo, Raymond Dingledine, Jan A Gorter, David C Henshall, Daniela Kaufer, Sookyong Koh, Wolfgang Löscher, Jean-Pierre Louboutin, Michele Mishto, Braxton A Norwood, Eleonora Palma, Michael O Poulter, Gaetano Terrone, Annamaria Vezzani, Rafal M Kaminski
A large body of evidence that has accumulated over the past decade strongly supports the role of inflammation in the pathophysiology of human epilepsy. Specific inflammatory molecules and pathways have been identified that influence various pathologic outcomes in different experimental models of epilepsy. Most importantly, the same inflammatory pathways have also been found in surgically resected brain tissue from patients with treatment-resistant epilepsy. New antiseizure therapies may be derived from these novel potential targets...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28675561/introduction-to-the-2nd-meeting-on-immunity-and-inflammation-in-epilepsy-iie2016
#4
Annamaria Vezzani, Stephan Rüegg
We report about the main topics presented during this meeting which was devoted to discuss the new emerging evidence for a role of immune- and inflammation-related mechanisms in various autoimmune and nonautoimmune forms of epilepsy. Major emphasis was given to novel immune/inflammatory mechanisms contributing to seizures and neurological comorbidities as well as to the discovery and validation of noninvasive biomarkers of brain inflammation which may be used to monitor epileptogenesis and predict the therapeutic effects of treatments...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28675559/neuroinflammation-in-epileptogenesis-insights-and-translational-perspectives-from-new-models-of-epilepsy
#5
Melissa L Barker-Haliski, Wolfgang Löscher, H Steve White, Aristea S Galanopoulou
Animal models have provided a wealth of information on mechanisms of epileptogenesis and comorbidogenesis, and have significantly advanced our ability to investigate the potential of new therapies. Processes implicating brain inflammation have been increasingly observed in epilepsy research. Herein we discuss the progress on animal models of epilepsy and comorbidities that inform us on the potential role of inflammation in epileptogenesis and comorbidity pathogenesis in rodent models of West syndrome and the Theiler's murine encephalomyelitis virus (TMEV) mouse model of viral encephalitis-induced epilepsy...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28675557/neurobehavioral-comorbidities-of-epilepsy-role-of-inflammation
#6
Andrey M Mazarati, Megan L Lewis, Quentin J Pittman
Epilepsy is associated with a high incidence of comorbid neurologic and psychiatric disorders. This review focuses on the association of epilepsy with autism spectrum disorder (ASD) and depression. There is high concordance of these behavioral pathologies with epilepsy. We review data that unambiguously reveal that epilepsy, ASD, and depression are associated with elevated brain inflammatory markers and that these may interact with serotoninergic pathways. Interference with inflammatory pathways or actions can reduce the severity of seizures, depression, and ASD-like behavior...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28675556/prospective-clinical-trials-to-investigate-clinical-and-molecular-biomarkers
#7
Stéphane Auvin, Lauren Walker, William Gallentine, Sergiusz Jozwiak, Mario Tombini, Graeme J Sills
Among clinical studies, randomized studies as well as well-designed observational studies are providing the highest quality data. In addition, these studies represent a good opportunity to examine biomarkers of ictogenesis and epileptogenesis. To date, no validated molecular or cellular biomarker exists for any aspect of epilepsy. We provide an overview of the inflammatory biomarkers under investigation in prospective clinical studies in epilepsy: proinflammatory cytokines in prolonged febrile seizure; High Mobility Group Box 1 (HMGB1) as a prognosis biomarker in epilepsy and the interaction between inflammation and metabolism, in particular, iron metabolism, in epilepsy...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28674987/neurodegeneration-and-pathology-in-epilepsy-clinical-and-basic-perspectives
#8
Jordan S Farrell, Marshal D Wolff, G Campbell Teskey
Epilepsy is commonly associated with a number of neurodegenerative and pathological alterations in those areas of the brain that are involved in repeated electrographic seizures. These most prominently include neuron loss and an increase in astrocyte number and size but may also include enhanced blood-brain barrier permeability, the formation of new capillaries, axonal sprouting, and central inflammation. In animal models in which seizures are either repeatedly elicited or are self-generated, a similar set of neurodegenerative and pathological alterations in brain anatomy are observed...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28669871/tissue-expressions-of-soluble-human-epoxide-hydrolase-2-enzyme-in-patients-with-temporal-lobe-epilepsy
#9
Merdin Lyutviev Ahmedov, Rahsan Kemerdere, Oguz Baran, Berrin Bercik Inal, Alper Gumus, Cihan Coskun, Seher Naz Yeni, Bulent Eren, Mustafa Uzan, Taner Tanriverdi
OBJECTIVE: To simply demonstrate how levels of soluble human epoxide hydrolase-2 show changes in both temporal the cortex and hippocampal complex in patients with temporal lobe epilepsy. METHODS: A total of 20 patients underwent anterior temporal lobe resection due to temporal lobe epilepsy. The control group comprised 15 people who died in traffic accidents or by falling from a height, and their autopsy findings were included. Adequately-sized temporal cortex and hippocampal samples were removed from each patient during surgery, and the same anatomic structures were removed from the control subjects during the autopsy procedures...
June 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28664455/neuroprotective-effects-of-the-absence-of-jnk1-or-jnk3-isoforms-on-kainic-acid-induced-temporal-lobe-epilepsy-like-symptoms
#10
Luisa de Lemos, Felix Junyent, Antoni Camins, Rubén Darío Castro-Torres, Jaume Folch, Jordi Olloquequi, Carlos Beas-Zarate, Ester Verdaguer, Carme Auladell
The activation of c-Jun-N-terminal kinases (JNK) pathway has been largely associated with the pathogenesis and the neuronal death that occur in neurodegenerative diseases. Altogether, this justifies why JNKs have become a focus of screens for new therapeutic strategies. The aim of the present study was to identify the role of the different JNK isoforms (JNK1, JNK2, and JNK3) in apoptosis and inflammation after induction of brain damage. To address this aim, we induced excitotoxicity in wild-type and JNK knockout mice (jnk1 (-/-) , jnk2 (-/-) , and jnk3 (-/-) ) via an intraperitoneal injection of kainic acid, an agonist of glutamic-kainate-receptors, that induce status epilepticus...
June 29, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28649227/fish-oil-supplementation-reduces-heart-levels-of-interleukin-6-in-rats-with-chronic-inflammation-due-to-epilepsy
#11
Mariana Bocca Nejm, André Abou Haidar, Aparecida Emiko Hirata, Lila Missae Oyama, Antonio-Carlos Guimarães de Almeida, Roberta Monterazzo Cysneiros, Esper Abrão Cavalheiro, Carla Alessandra Scorza, Fulvio Alexandre Scorza
Sudden unexpected death in epilepsy (SUDEP) is a major cause of premature death related to epilepsy. The causes of SUDEP remain unknown, but cardiac arrhythmias and asphyxia have been suggested as a major mechanism of this event. Inflammation has been implicated in the pathogenesis of both epilepsy and ventricular arrhythmia, with interleukin-6 (IL-6) being recognized as a crucial orchestrator of inflammatory states. Our group previously reported that levels of IL-6 were increased in the hearts of epileptic rats...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28637381/role-of-caspase-3-mediated-apoptosis-in-chronic-caspase-3-cleaved-tau-accumulation-and-blood-brain-barrier-damage-in-the-corpus-callosum-after-traumatic-brain-injury-in-rats
#12
Olena Glushakova, Andriy O Glushakov, Cesar Borlongan, Alex Valadka, Ronald L Hayes, Alexander V Glushakov
Traumatic brain injury (TBI) may be a significant risk factor for development of neurodegenerative disorders such as chronic traumatic encephalopathy (CTE), post-traumatic epilepsy (PTE), and Alzheimer's (AD) and Parkinson's (PD) diseases. Chronic TBI is associated with several pathological features that are also characteristic of neurodegenerative diseases, including tau pathologies, caspase-3-mediated apoptosis, neuroinflammation, and microvascular alterations. The goal of this study was to evaluate changes following TBI in cleaved-caspase-3 and caspase-3-cleaved tau truncated at Asp421 and their relationships to cellular markers potentially associated with inflammation and blood-brain (BBB) barrier damage...
June 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28632329/postictal-hypoperfusion-hypoxia-provides-the-foundation-for-a-unified-theory-of-seizure-induced-brain-abnormalities-and-behavioral-dysfunction
#13
REVIEW
Jordan S Farrell, Roberto Colangeli, Marshal D Wolff, Alexandra K Wall, Thomas J Phillips, Antis George, Paolo Federico, G Campbell Teskey
A recent article by Farrell et al. characterizes the phenomenon, mechanisms, and treatment of a local and severe hypoperfusion/hypoxia event that occurs in brain regions following a focal seizure. Given the well-established role of cerebral ischemia/hypoxia in brain damage and behavioral dysfunction in other clinical settings (e.g., stroke, cerebral vasospasm), we put forward a new theory: postictal hypoperfusion/hypoxia is responsible for the negative consequences associated with seizures. Fortunately, inhibition of two separate molecular targets, cyclooxygenase-2 (COX-2) and l-type calcium channels, can prevent the expression of postictal hypoperfusion/hypoxia...
June 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28623167/the-ketogenic-diet-affects-the-social-behavior-of-young-male-rats
#14
Daniela Kasprowska-Liśkiewicz, Arkadiusz D Liśkiewicz, Marta M Nowacka-Chmielewska, Joanna Nowicka, Andrzej Małecki, Jarosław J Barski
The positive effects of the ketogenic diet (KD) on social behavior have been recently reported in patients and rodent models of autism spectrum disorder (ASD). Given the beneficial effects of the KD on epilepsy, mitochondrial function, carbohydrate metabolism, and inflammation, treatment based on the KD has the potential to reduce some of the ASD-associated symptoms, including abnormal social interactions. It is not known whether the KD influences sociability by reducing the pathological processes underlying ASD or through some independent mechanism...
June 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28620379/neuroimmune-interactions-in-schizophrenia-focus-on-vagus-nerve-stimulation-and-activation-of-the-alpha-7-nicotinic-acetylcholine-receptor
#15
REVIEW
Fabiana Maria das Graças Corsi-Zuelli, Fernanda Brognara, Gustavo Fernando da Silva Quirino, Carlos Hiroji Hiroki, Rafael Sobrano Fais, Cristina Marta Del-Ben, Luis Ulloa, Helio Cesar Salgado, Alexandre Kanashiro, Camila Marcelino Loureiro
Schizophrenia is one of the most debilitating mental disorders and is aggravated by the lack of efficacious treatment. Although its etiology is unclear, epidemiological studies indicate that infection and inflammation during development induces behavioral, morphological, neurochemical, and cognitive impairments, increasing the risk of developing schizophrenia. The inflammatory hypothesis of schizophrenia is also supported by clinical studies demonstrating systemic inflammation and microglia activation in schizophrenic patients...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28607533/cysteinyl-leukotrienes-as-potential-pharmacological-targets-for-cerebral-diseases
#16
REVIEW
Paolo Gelosa, Francesca Colazzo, Elena Tremoli, Luigi Sironi, Laura Castiglioni
Cysteinyl leukotrienes (CysLTs) are potent lipid mediators widely known for their actions in asthma and in allergic rhinitis. Accumulating data highlights their involvement in a broader range of inflammation-associated diseases such as cancer, atopic dermatitis, rheumatoid arthritis, and cardiovascular diseases. The reported elevated levels of CysLTs in acute and chronic brain lesions, the association between the genetic polymorphisms in the LTs biosynthesis pathways and the risk of cerebral pathological events, and the evidence from animal models link also CysLTs and brain diseases...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607431/cerebrospinal-fluid-micrornas-are-potential-biomarkers-of-temporal-lobe-epilepsy-and-status-epilepticus
#17
Rana Raoof, Eva M Jimenez-Mateos, Sebastian Bauer, Björn Tackenberg, Felix Rosenow, Johannes Lang, Müjgan Dogan Onugoren, Hajo Hamer, Tessa Huchtemann, Peter Körtvélyessy, Niamh M C Connolly, Shona Pfeiffer, Jochen H M Prehn, Michael A Farrell, Donncha F O'Brien, David C Henshall, Catherine Mooney
There is a need for diagnostic biomarkers of epilepsy and status epilepticus to support clinical examination, electroencephalography and neuroimaging. Extracellular microRNAs may be potentially ideal biomarkers since some are expressed uniquely within specific brain regions and cell types. Cerebrospinal fluid offers a source of microRNA biomarkers with the advantage of being in close contact with the target tissue and sites of pathology. Here we profiled microRNA levels in cerebrospinal fluid from patients with temporal lobe epilepsy or status epilepticus, and compared findings to matched controls...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28606690/antiparasitic-treatment-of-neurocysticercosis-the-effect-of-cyst-destruction-in-seizure-evolution
#18
REVIEW
Hector H Garcia, Oscar H Del Brutto
Antiparasitic agents against Taenia solium cysticercosis have been in use since 1979, although its use has been questioned on the basis that cysts would die naturally and thus treatment-induced inflammation is unnecessary. In addition, isolated reports have also questioned whether neurocysticercosis (NCC) is a cause of epilepsy. After more than three and a half decades, a large body of evidence is available. Little if any doubt exists about NCC as a cause of seizures - NCC is consistently associated with seizures when appropriate groups are compared, and in a large subset of cases, seizure semiology correlates with the anatomical location of lesions...
June 9, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28597918/inflammation-in-the-developing-rat-modulates-astroglial-reactivity-to-seizures-in-the-mature-brain
#19
Zuzanna Setkowicz, Emilia Kosonowska, Krzysztof Janeczko
Astrocytes participate in neuronal development and excitability, and produce factors enhancing or suppressing inflammatory processes occurring due to neurodegenerative diseases, such as epilepsy. Seizures, in turn, trigger the release of inflammatory mediators, causing structural and functional changes in the brain. Therefore, it appears reasonable to determine whether generalized inflammation at developmental periods can affect astrocyte reactivity to epileptic seizures occurring in the adult brain. Lipopolysaccharide (LPS) was injected in 6- or 30-day-old rats (P6 or P30, respectively)...
June 9, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28579059/neuroketotherapeutics-a-modern-review-of-a-century-old-therapy
#20
REVIEW
Scott J Koppel, Russell H Swerdlow
Neuroketotherapeutics represent a class of bioenergetic medicine therapies that feature the induction of ketosis. These therapies include medium-chain triglyceride supplements, ketone esters, fasting, strenuous exercise, the modified Atkins diet, and the classic ketogenic diet. Extended experience reveals persons with epilepsy, especially pediatric epilepsy, benefit from ketogenic diets although the mechanisms that underlie its effects remain unclear. Data indicate ketotherapeutics enhance mitochondrial respiration, promote neuronal long-term potentiation, increase BDNF expression, increase GPR signaling, attenuate oxidative stress, reduce inflammation, and alter protein post-translational modifications via lysine acetylation and β-hydroxybutyrylation...
June 1, 2017: Neurochemistry International
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