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Neuroinflammation and epilepsy

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https://www.readbyqxmd.com/read/28527061/ketogenic-diet-in-migraine-rationale-findings-and-perspectives
#1
Piero Barbanti, Luisa Fofi, Cinzia Aurilia, Gabriella Egeo, Massimiliano Caprio
Ketogenic diet (KD) is an established treatment for refractory pediatric epilepsy and a promising therapy for diverse neurological diseases. Clinical data on KD in migraine-obtained from 150 patients investigated in case reports and prospective studies-suggest that KD may be a rapid onset effective prophylaxis for episodic and chronic migraine. KD would contribute to restore brain excitability and metabolism and to counteract neuroinflammation in migraine, although its precise mechanism is still unclear. Randomized controlled studies are needed to confirm the usefulness of KD in migraine and to investigate its optimal duration, repeatability, feasibility in normal weight subjects, efficacy in pediatric population and association to conventional migraine prophylaxis...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28522414/therapeutic-potential-of-agmatine-for-cns-disorders
#2
REVIEW
Vivian B Neis, Priscila B Rosa, Gislaine Olescowicz, Ana Lúcia S Rodrigues
Agmatine is a neuromodulator that regulates multiple neurotransmitters and signaling pathways. Several studies have focused on elucidating the mechanisms underlying the neuroprotective effects of this molecule, which seems to be mediated by a reduction in oxidative damage, neuroinflammation, and proapoptotic signaling. Since these events are implicated in acute and chronic excitotoxicity-related disorders (ischemia, epilepsy, traumatic brain injury, spinal cord injury, neurodegenerative, and psychiatric disorders) as well as in nociception, agmatine has been proposed as a therapeutic strategy for the treatment of central nervous system (CNS) disorders...
May 15, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#3
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28504645/molecular-isoforms-of-high-mobility-group-box-1-are-mechanistic-biomarkers-for-epilepsy
#4
Lauren Elizabeth Walker, Federica Frigerio, Teresa Ravizza, Emanuele Ricci, Karen Tse, Rosalind E Jenkins, Graeme John Sills, Andrea Jorgensen, Luca Porcu, Thimmasettappa Thippeswamy, Tiina Alapirtti, Jukka Peltola, Martin J Brodie, Brian Kevin Park, Anthony Guy Marson, Daniel James Antoine, Annamaria Vezzani, Munir Pirmohamed
Approximately 30% of epilepsy patients do not respond to antiepileptic drugs, representing an unmet medical need. There is evidence that neuroinflammation plays a pathogenic role in drug-resistant epilepsy. The high-mobility group box 1 (HMGB1)/TLR4 axis is a key initiator of neuroinflammation following epileptogenic injuries, and its activation contributes to seizure generation in animal models. However, further work is required to understand the role of HMGB1 and its isoforms in epileptogenesis and drug resistance...
May 15, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28489058/the-neuroprotective-effects-of-phenolic-acids-molecular-mechanism-of-action
#5
Dominik Szwajgier, Kamila Borowiec, Katarzyna Pustelniak
The neuroprotective role of phenolic acids from food has previously been reported by many authors. In this review, the role of phenolic acids in ameliorating depression, ischemia/reperfusion injury, neuroinflammation, apoptosis, glutamate-induced toxicity, epilepsy, imbalance after traumatic brain injury, hyperinsulinemia-induced memory impairment, hearing and vision disturbances, Parkinson's disease, Huntington's disease, anti-amyotrophic lateral sclerosis, Chagas disease and other less distributed diseases is discussed...
May 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28462087/identification-of-brain-regions-predicting-epileptogenesis-by-serial-18-f-ge-180-positron-emission-tomography-imaging-of-neuroinflammation-in-a-rat-model-of-temporal-lobe-epilepsy
#6
Vera Russmann, Matthias Brendel, Erik Mille, Angela Helm-Vicidomini, Roswitha Beck, Lisa Günther, Simon Lindner, Axel Rominger, Michael Keck, Josephine D Salvamoser, Nathalie L Albert, Peter Bartenstein, Heidrun Potschka
Excessive activation of inflammatory signaling pathways seems to be a hallmark of epileptogenesis. Positron emission tomography (PET) allows in vivo detection of brain inflammation with spatial information and opportunities for longitudinal follow-up scanning protocols. Here, we assessed whether molecular imaging of the 18 kDa translocator protein (TSPO) can serve as a biomarker for the development of epilepsy. Therefore, brain uptake of [(18)F]GE-180, a highly selective radioligand of TSPO, was investigated in a longitudinal PET study in a chronic rat model of temporal lobe epilepsy...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28444141/imaging-blood-brain-barrier-dysfunction-as-a-biomarker-for-epileptogenesis
#7
Guy Bar-Klein, Svetlana Lublinsky, Lyn Kamintsky, Iris Noyman, Ronel Veksler, Hotjensa Dalipaj, Vladimir V Senatorov, Evyatar Swissa, Dror Rosenbach, Netta Elazary, Dan Z Milikovsky, Nadav Milk, Michael Kassirer, Yossi Rosman, Yonatan Serlin, Arik Eisenkraft, Yoash Chassidim, Yisrael Parmet, Daniela Kaufer, Alon Friedman
A biomarker that will enable the identification of patients at high-risk for developing post-injury epilepsy is critically required. Microvascular pathology and related blood-brain barrier dysfunction and neuroinflammation were shown to be associated with epileptogenesis after injury. Here we used prospective, longitudinal magnetic resonance imaging to quantitatively follow blood-brain barrier pathology in rats following status epilepticus, late electrocorticography to identify epileptic animals and post-mortem immunohistochemistry to confirm blood-brain barrier dysfunction and neuroinflammation...
April 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28397070/ketone-bodies-as-anti-seizure-agents
#8
Timothy A Simeone, Kristina A Simeone, Jong M Rho
There is growing evidence that ketone bodies (KB)-derived from fatty acid oxidation and produced during fasting or consumption of high-fat diets-can exert broad neuroprotective effects. With respect to epilepsy, KB (such as β-hydroxybutyrate or BHB, acetoacetate and acetone) have been shown to block acutely induced and spontaneous recurrent seizures in various animal models. Although the mechanisms underlying the anti-seizure effects of KB have not been fully elucidated, recent experimental studies have invoked ketone-mediated effects on both inhibitory (e...
April 10, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28374921/intracerebral-delivery-of-the-m2-polarizing-cytokine-interleukin-13-using-mesenchymal-stem-cell-implants-in-a-model-of-temporal-lobe-epilepsy-in-mice
#9
Idrish Ali, Stephanie Aertgeerts, Debbie Le Blon, Daniele Bertoglio, Chloe Hoornaert, Peter Ponsaerts, Stefanie Dedeurwaerdere
OBJECTIVES: Neuroinflammation plays a critical role in the pathophysiology of mesial temporal lobe epilepsy. We aimed to evaluate whether intracerebral transplantation of interleukin 13-producing mesenchymal stem cells (IL-13 MSCs) induces an M2 microglia/macrophage activation phenotype in the hippocampus with an epileptogenic insult, thereby providing a neuroprotective environment with reduced epileptogenesis. METHODS: Genetically engineered syngeneic IL-13 MSCs or vehicle was injected within the hippocampus 1 week before the intrahippocampal kainic acid-induced status epilepticus (SE) in C57BL/6J mice...
April 4, 2017: Epilepsia
https://www.readbyqxmd.com/read/28372497/astrocyte-mediated-inflammation-in-cortical-spreading-depression
#10
Amir Ghaemi, Leila Alizadeh, Shahnaz Babaei, Maryam Jafarian, Maryam Khaleghi Ghadiri, Sven G Meuth, Stjepana Kovac, Ali Gorji
Background Cortical spreading depression (CSD) related diseases such as migraine, cerebrovascular diseases, and epilepsy have been associated with reactive astrocytosis, yet the mechanisms of these tissue changes remain unclear. CSD-induced inflammatory response has been proposed to play a role in some neurological disorders and thus may also contribute to reactive astrocytosis. Methods Using ex vivo brain slices and in vitro astrocytic cultures, we aimed to characterize CSD related changes in astrocytes and markers of inflammation by immunocyto- and immunohistochemistry...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28372289/dpp4-regulates-the-inflammatory-response-in-a-rat-model-of-febrile-seizures
#11
Qi Sun, Yusong Zhang, Jie Huang, Fang Yu, Jian Xu, Biwen Peng, Wanhong Liu, Song Han, Jun Yin, Xiaohua He
Febrile seizures (FS) are the most common seizure disorders in children aged 6 months to 5 years. Children suffering from complex FS have a high risk of developing subsequent temporal lobe epilepsy (TLE). Neuroinflammation is involved in the pathogenesis of FS although the mechanism remains unknown. Our previous study using the Whole Rat Genome Oligo Microarray determined that Dipeptidyl peptidase IV (DPP4) is potentially a related gene in FS rats. In this study, we demonstrated that DPP4 expression was significantly increased at both the protein and mRNA levels after hyperthermia induction...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28289782/neuro-psychopharmacological-perspective-of-orphan-receptors-of-rhodopsin-class-a-family-of-g-protein-coupled-receptors
#12
REVIEW
Muhammad Zahid Khan, Ling He
BACKGROUND: In the central nervous system (CNS), G protein-coupled receptors (GPCRs) are the most fruitful targets for neuropsychopharmacological drug development. Rhodopsin (class A) is the most studied class of GPCR and includes orphan receptors for which the endogenous ligand is not known or is unclear. Characterization of orphan GPCRs has proven to be challenging, and the production pace of GPCR-based drugs has been incredibly slow. OBJECTIVE: Determination of the functions of these receptors may provide unexpected insight into physiological and neuropathological processes...
April 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28179120/novel-therapeutic-approaches-for-disease-modification-of-epileptogenesis-for-curing-epilepsy
#13
REVIEW
Bryan L Clossen, Doodipala Samba Reddy
This article describes the recent advances in epileptogenesis and novel therapeutic approaches for the prevention of epilepsy, with a special emphasis on the pharmacological basis of disease-modification of epileptogenesis for curing epilepsy. Here we assess animal studies and human clinical trials of epilepsy spanning 1982-2016. Epilepsy arises from a number of neuronal factors that trigger epileptogenesis, which is the process by which a brain shifts from a normal physiologic state to an epileptic condition...
February 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28127491/sterile-neuroinflammation-and-strategies-for-therapeutic-intervention
#14
REVIEW
Manoj Banjara, Chaitali Ghosh
Sterile neuroinflammation is essential for the proper brain development and tissue repair. However, uncontrolled neuroinflammation plays a major role in the pathogenesis of various disease processes. The endogenous intracellular molecules so called damage-associated molecular patterns or alarmins or damage signals that are released by activated or necrotic cells are thought to play a crucial role in initiating an immune response. Sterile inflammatory response that occurs in Alzheimer's disease (AD), Parkinson's disease (PD), stroke, hemorrhage, epilepsy, or traumatic brain injury (TBI) creates a vicious cycle of unrestrained inflammation, driving progressive neurodegeneration...
2017: International Journal of Inflammation
https://www.readbyqxmd.com/read/28109197/everolimus-is-better-than-rapamycin-in-attenuating-neuroinflammation-in-kainic-acid-induced-seizures
#15
Ming-Tao Yang, Yi-Chin Lin, Whae-Hong Ho, Chao-Lin Liu, Wang-Tso Lee
BACKGROUND: Microglia is responsible for neuroinflammation, which may aggravate brain injury in diseases like epilepsy. Mammalian target of rapamycin (mTOR) kinase is related to microglial activation with subsequent neuroinflammation. In the present study, rapamycin and everolimus, both as mTOR inhibitors, were investigated in models of kainic acid (KA)-induced seizure and lipopolysaccharide (LPS)-induced neuroinflammation. METHODS: In vitro, we treated BV2 cells with KA and LPS...
January 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28104433/micrornas-in-the-pathophysiology-of-epilepsy
#16
REVIEW
Gary P Brennan, David C Henshall
Temporal lobe epilepsy is a common and often drug-resistant seizure disorder. The underlying pathological processes which give rise to the development of spontaneous seizures include neuroinflammation, cell loss, neurogenesis and dendritic abnormalities and many of these are driven by insult-induced changes in gene expression and gene expression regulation. MicroRNAs are powerful modulators of post-transcriptional gene expression which are dysregulated during epileptogenesis. The advent of locked nucleic acid (LNA) based inhibitory methods and mimic technology has facilitated in vivo functional assessment of these molecules in epilepsy...
January 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28087250/pharmacology-of-cannabinoids-in-the-treatment-of-epilepsy
#17
REVIEW
Tyler E Gaston, Daniel Friedman
The use of cannabis products in the treatment of epilepsy has long been of interest to researchers and clinicians alike; however, until recently very little published data were available to support its use. This article summarizes the available scientific data of pharmacology from human and animal studies on the major cannabinoids which have been of interest in the treatment of epilepsy, including ∆9-tetrahydrocannabinol (∆9-THC), cannabidiol (CBD), ∆9-tetrahydrocannabivarin (∆9-THCV), cannabidivarin (CBDV), and ∆9-tetrahydrocannabinolic acid (Δ9-THCA)...
January 10, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28086980/inflammation-in-epileptogenesis-after-traumatic-brain-injury
#18
REVIEW
Kyria M Webster, Mujun Sun, Peter Crack, Terence J O'Brien, Sandy R Shultz, Bridgette D Semple
BACKGROUND: Epilepsy is a common and debilitating consequence of traumatic brain injury (TBI). Seizures contribute to progressive neurodegeneration and poor functional and psychosocial outcomes for TBI survivors, and epilepsy after TBI is often resistant to existing anti-epileptic drugs. The development of post-traumatic epilepsy (PTE) occurs in a complex neurobiological environment characterized by ongoing TBI-induced secondary injury processes. Neuroinflammation is an important secondary injury process, though how it contributes to epileptogenesis, and the development of chronic, spontaneous seizure activity, remains poorly understood...
January 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28061403/berberine-ameliorates-intrahippocampal-kainate-induced-status-epilepticus-and-consequent-epileptogenic-process-in-the-rat-underlying-mechanisms
#19
Reza Sedaghat, Yosra Taab, Zahra Kiasalari, Siamak Afshin-Majd, Tourandokht Baluchnejadmojarad, Mehrdad Roghani
Status epilepticus (SE) is a life-threatening neurologic condition, instigating epileptogenesis to transform normal brain to an epileptic condition. SE is followed by spontaneous recurrent seizures (SRS) and final development of temporal lobe epilepsy (TLE) that is resistant to treatment. Neuroprotective strategies are increasingly put forward as a promising therapy to prevent and/or manage epileptic conditions. In this study, we investigated whether berberis alkaloid, i.e. berberine (BBR), could ameliorate intrahippocampal kainate-induced SE and its consequent epileptogenic process and to explore some underlying mechanisms...
March 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27916232/review-neuroinflammation-in-intrauterine-growth-restriction
#20
REVIEW
Julie A Wixey, Kirat K Chand, Paul B Colditz, S Tracey Bjorkman
Disruption to the maternal environment during pregnancy from events such as hypoxia, stress, toxins, inflammation, and reduced placental blood flow can affect fetal development. Intrauterine growth restriction (IUGR) is commonly caused by chronic placental insufficiency, interrupting supply of oxygen and nutrients to the fetus resulting in abnormal fetal growth. IUGR is a major cause of perinatal morbidity and mortality, occurring in approximately 5-10% of pregnancies. The fetal brain is particularly vulnerable in IUGR and there is an increased risk of long-term neurological disorders including cerebral palsy, epilepsy, learning difficulties, behavioural difficulties and psychiatric diagnoses...
November 25, 2016: Placenta
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