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Sudden Death in Epilepsy: Basic and Translational Research

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889455942 Year: Pages: 71 DOI: 10.3389/978-2-88945-594-2 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Neurology
Added to DOAB on : 2019-01-23 14:53:43
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Sudden Death in Epilepsy (SUDEP) is a major cause of death in people with epilepsy, accounting for up to 17% of all deaths. Research interest is exploding, focusing on epidemiology, basic mechanisms, identification of risk factors, and biomarkers. New wearable technologies are approved or in development. These incorporate accelerometers and advanced heart rate detection, which are linked to smart phones. The advent of FDA approved detection devices now allows immediate intervention by family and loved ones. The next frontier for SUDEP remains effective prevention strategies, which will likely include new devices and pharmacologic interventions. This volume is organized into three sections: Basic and Physiologic Mechanisms; Clinical Risk Factors and Inventories; and Very Early Research into Pharmacologic Interventions. It is our hope that this eBook will inform clinicians of key advances in the field, and to foster and stimulate basic and translational research with one purpose: To prevent SUDEP in those at risk.

50th Anniversary of Adult Neurogenesis: Olfaction, Hippocampus and Beyond

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199631 Year: Pages: 243 DOI: 10.3389/978-2-88919-963-1 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2016-01-19 14:05:46
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In the mid-sixties, the discovery by Altman and co-workers of neurogenesis in the adult brain changed the previous conception of the immutability of this organ during adulthood sustained among others by Cajal. This discovery was ignored up to eighty’s when Nottebohm demonstrated neurogenesis in birds. Subsequently, two main neurogenic zones were characterized: the subventricular zone of the lateral ventricle and the subgranular layer of the dentate gyrus. Half century later, the exact role of new neurons in the adult brain is not completely understand. This book is composed by a number of articles by leaders in the filed covering from an historic perspective to potential therapeutic opportunities.

Keywords

Alzheimer --- Dopamine --- glia --- Epilepsy --- Exercise --- Stroke

Role of Intravenous Levetiracetam in Acute Seizure Management

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889193226 Year: Pages: 74 DOI: 10.3389/978-2-88919-322-6 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Medicine (General)
Added to DOAB on : 2016-02-05 17:24:33
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Intractable epilepsy still remains the main issue despite new advances in medical and surgical treatment of epilepsy. Acute seizure management in a timely manner is crucial to prevent irreversible brain damage. Benzodiazepines still remain the first initial treatment to abort the seizure activity. The approval phenytoin, fosphenytoin, intravenous valproate, and rectal diazepam provided additional options. The approval of intravenous levetiracetam gave another option to physicians if and when the above treatment fails to control the seizure activity. In this Ebook, we have included chapters from renowned researchers in the field of neurology and epilepsy who have covered the various aspects of these agents in detail including the properties, mechanism of action, pharmacology, neurobehavioral effects, and the roles of these agents in special populations including traumatic brain injury and brain tumor related epilepsy. These data further show that intravenous levetiracetam can be used in acute seizure management and in special circumstances.

Diagnosis and Surgical Treatment of Epilepsy

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ISBN: 9783038974499 / 9783038974505 Year: Pages: 134 DOI: 10.3390/books978-3-03897-450-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology
Added to DOAB on : 2019-01-09 11:37:07
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Epilepsy is a common neurological disease that can affect all ages. Although the majority of people with epilepsy can have excellent seizure control with medication, about 30% will fail anti-epileptic drugs. For those with medically intractable epilepsy, recurrent seizures lead to elevated mortality and injury risks, and the seizures themselves are socially disabling. Fortunately, for many people with intractable epilepsy, epilepsy can be cured or seizures better controlled with surgery.Localization of the seizure focus followed by surgical resection provide the best opportunities to cure epilepsy. Having a better understanding of the neuro-anatomy and physiology of epilepsy improves our ability to define the epileptic network and effectively treat epilepsy. Minimal access surgical approaches result in more rapid recovery from surgery, less pain, and more satisfied patients.For individuals without an opportunity to cure their epilepsy, new and emerging technologies can improve their quality of life by preventing injuries and reducing seizure frequency and severity.This Special Issue will highlight advances in the diagnosis and surgical treatment of epilepsy, including imaging and electroencephalography (EEG) approaches to defining the epileptic focus, understanding the epileptic network, and characterizing the anatomical substrate of epilepsy.

Neuronal mechanisms of epileptogenesis

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889193820 Year: Pages: 223 DOI: 10.3389/978-2-88919-382-0 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2015-12-03 13:02:24
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Several types of brain injuries are causes of acquired temporal lobe epilepsy (TLE). The seizure-free "latent period" that often follows the brain injury is of unknown mechanistic significance but is commonly considered as the "epileptogenic" period characterized by gradual pathogenic processes leading to the onset of clinically detectable epilepsy. Acute convulsive status epilepticus (SE) is often associated with an adverse developmental outcome characterized by learning disabilities related to the cumulative effects of seizures and development of TLE. The symptomatic manifestations of TLE appear only after a widespread irreversible damage of entorhinal cortex, and hippocampus, the brain area most affected by this disease. These pathological features of TLE reduce the possibility of successful therapeutic approaches, often rendering the disease refractory. The difficult clinical management of chronic TLE and the limited success rate of surgical approaches, increase the incapacitating nature of this specific epileptic disorder. Prevention of TLE with an appropriate intervention after a known inciting event (in the case of acquired epilepsy) might represent the most ambitious goal in the clinical treatment of this epileptic disorder, but has been largely unsuccessful to this point. Clinical trials aimed at prevention of chronic epilepsy have often produced negative, disappointing results. However, in most cases, these studies ultimately evaluated the downstream clinical manifestations, failing to monitor early, specific molecular epileptogenic events. Therefore, elucidation of the underlying mechanisms of epileptogenesis, and their time course(s) are essential. The primary purpose of this topic is to collect scientific contributions providing novel insights in the cellular and molecular mechanisms of epileptogenesis as potential targets for innovative therapeutic approaches aimed at preventing the chronic epileptic disorder.

Identifying the Epileptic Network

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889192960 Year: Pages: 126 DOI: 10.3389/978-2-88919-296-0 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Medicine (General)
Added to DOAB on : 2015-12-10 11:59:07
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An important area of current research in epilepsy focuses on identifying the specific regions within the brain that are affected in individuals with recurring seizures. The epileptogenic process may result not only in pathology in focal cortical regions, but abnormalities in subcortical structures, such as thalamus and basal ganglia, and in intercortical and intracortical connecting white matter pathways. Novel methods of treating refractory epilepsy are urgently needed. The goal of identifying for each affected individual the specific brain regions that are involved offers the promise that novel methods of treatment will one day be developed that specifically target those abnormal regions. Researchers from disparate fields are required to develop and advance this area of research, and this current topic proposes to place a spotlight on the “state of the art” of methods to identify the abnormal networks. Recent work covering a wide variety of disciplines and technologies, including dense array electroencephalography (dEEG), novel methods of analyses of both the interictal dEEG and intracranial EEG (icEEG), magnetoencephalography (MEG), high-resolution magnetic resonance imaging (MRI), functional MRI (fMRI), simultaneous fMRI-EEG, fMRI connectivity measures, simultaneous dEEG-icEEG, and techniques to coregister patient-specific MRI (including white matter pathways) and dEEG, are all examples of areas of research that have contributed to a greater understanding of potential epileptogenic regions. We asked for individuals with expertise in an area of research that expands an understanding of identifying epileptic networks to contribute to this research topic.

Novel roles of non-coding brain RNAs in health and disease

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889193097 Year: Pages: 213 DOI: 10.3389/978-2-88919-309-7 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2016-02-05 17:24:33
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Non-coding RNAs (ncRNAs), and in particular microRNAs are rapidly becoming the focus of research interest in numerous basic and translational fields, including brain research; and their importance for many aspects in brain functioning merits special discussion. The wide-scope, multi-targeted and highly efficient manner of ncRNA regulatory activities draws attention to this topic by many, but the available research and analysis tools and experimental protocols are still at their infancy, and calls for special discussion given their importance for many aspects in brain functioning. This eBook is correspondingly focused on the search for, identification and exploration of those non-coding RNAs whose activities modulate the multi-leveled functions of the eukaryotic brain. The different articles strive to cover novel approaches for identifying and establishing ncRNA-target relationships, provide state of the art reports of the affected neurotransmission pathways, describe inherited and acquired changes in ncRNA functioning and cover the use of ncRNA mimics and blockade tools for interference with their functions in health and disease of the brain. Non-coding RNAs are here to stay, and this exciting eBook provides a glimpse into their impact on our brain’s functioning at the physiology, cell biology, behavior and immune levels.

At The Top of the Interneuronal Pyramid - Calretinin Expressing Cortical Interneurons

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197088 Year: Pages: 102 DOI: 10.3389/978-2-88919-708-8 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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It is in general well appreciated that the cortical interneurons play various important roles in cortical neuronal networks both in normal and pathological states. Based on connectivity pattern, developmental, morphological and electrophysiological properties, distinct subgroups of GABAergic interneurons can be differentiated in the neocortex as well as in the hippocampal formation. In this E-Book, we are focusing our attention on inhibitory interneurons expressing calcium-binding protein calretinin (CR). The aim of the E-Book is to consolidate the knowledge about this interneuronal population and to inspire further research on the function and malfunction of these neurons, which – functionally – seem to stand "at the top of the pyramid" of cortical interneuronal types.

Magnetoencephalography: an emerging neuroimaging tool for studying normal and abnormal human brain development

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889196586 Year: Pages: 209 DOI: 10.3389/978-2-88919-658-6 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2016-08-16 10:34:25
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Research on the human brain development has seen an upturn in the past years mostly due to novel neuroimaging tools that became available to study the anatomy and function of the developing brain. Magnetic Resonance Imaging (MRI) and Diffusion Tensor Imaging (DTI) are beginning to be used more frequently in children to determine the gross anatomy and structural connectivity of their brain. Functional MRI and Near-Infrared Spectroscopy (NIRS) determine the hemodynamics and electroencephalography (EEG) the electrophysiological functions of the developing human brain. Magnetoencephalography (MEG) complements EEG as the only other technique capable of directly measuring the developing brain electrophysiology. Although MEG is still being used relatively rarely in pediatric studies, the recent development in this technology is beginning to demonstrate its utility in both basic and clinical neurosciences. MEG seems to be quite attractive for pediatric use, since it measures the human brain activity in an entirely passive manner without possessing any conceivable risk to the developing tissue. MEG sessions generally require minimal patient preparation, and the recordings are extremely well tolerated from children. Biomagnetic techniques also offer an indirect way to assess the functional brain and heart activity of fetuses in humans in utero by measuring the magnetic field outside the maternal abdomen. Magnetic field produced by the electrical activity in the heart and brain of the fetus is not attenuated by the vernix, a waxy film covering its entire skin. A biomagnetic instrument specifically designed for fetal studies has been developed for this purpose. Fetal MEG studies using such a system have shown that both spontaneous brain activity and evoked cortical activity can be measured from outside the abdomen of pregnant mothers. Fetal MEG may become clinically very useful for implementation and evaluation of intervention programs in at-risk populations. Biomagnetic instruments have also been developed for specifically measuring the brain activity in newborns, infants and older children. MEG studies have shown the usefulness of MEG for localizing active regions in the brain and also for tracking the longitudinal maturation of various sensory systems. Studies of pediatric patients are beginning to show interesting functional pathology in autism spectrum disorder, cerebral palsy, epilepsy and other types of neurological and psychiatric disorders (Down syndrome, traumatic brain injury, Tourette syndrome, hearing deficits, childhood migraine). In this eBook, we compile the state of the art MEG and other neuroimaging studies focused on pediatric population in both health and disease. We believe a review of the recent studies of human brain development using MEG is quite timely, since we are witnessing advances not only in the instrumentation optimized for the pediatric population, but also in the research based on various types of MEG systems designed for both human fetuses in utero and neonates and older children.

Facing the Other: Novel Theories and Methods in Face Perception Research

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197941 Year: Pages: 369 DOI: 10.3389/978-2-88919-794-1 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2017-02-03 17:04:57
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We rely heavily on faces during social interactions. Humans possess the ability to recognise thousands of people very quickly and accurately without effort. The serious social difficulties that follow abnormalities of the face recognition system (i.e., prosopagnosia) strongly underline the importance of typical face skills in our everyday life. Over the last fifty years, research on prosopagnosia, along with research in the healthy population, has provided insights into the cognitive and neural features behind typical face recognition. This has also been achieved thanks to non-invasive neuroimaging techniques such as functional Magnetic Resonance Imaging (fMRI), Electroencephalography (EEG), Magnetoencephalography (MEG), Diffusion Tensor Imaging (DTI) and Transcranial Magnetic Stimulation (TMS). However, there is still much debate about the cognitive and neural mechanisms of face perception. In the current Research Topic we plan to gather experimental works, opinions, commentaries, mini-reviews and reviews that focus on new or novel theories and methods in face perception research. Where is the field at the moment? Do we need to re-think the experimental procedures we have adopted so far? Again, what kind of techniques (or combination of them) and analysis methods will be important in the future? From the experimental point of view we encourage both behavioural and neuroimaging contributions (e.g., fMRI, EEG, MEG, DTI and TMS). Despite the main emphasis on face perception, memory and identification, we will also consider original works that focus on other aspects of face processing, such as expression recognition, attractiveness judgments and face imagery. In addition, animal investigations and experimental manipulations that alter face recognition abilities in typical human subjects (e.g., hypnosis) are also welcome. Overall, we are proposing a Research Topic that looks at face processing using different perspectives and welcome contributions from different domains such as psychology, neurology, neuroscience, cognitive science and philosophy. The current Research Topic evolved over the desire to acknowledge the relatively recent loss of three giants in the field: Drs. Shlomo Bentin, Truett Allison and Andy Calder. We dedicate this Research Topic to them and their pioneering studies.

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