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https://www.readbyqxmd.com/read/28912687/alterations-in-properties-of-glutamatergic-transmission-in-the-temporal-cortex-and-hippocampus-following-pilocarpine-induced-acute-seizures-in-wistar-rats
#1
Dmitry V Amakhin, Sergey L Malkin, Julia L Ergina, Kirill A Kryukov, Ekaterina A Veniaminova, Olga E Zubareva, Aleksey V Zaitsev
Temporal lobe epilepsy (TLE) is the most common type of focal epilepsy in humans, and is often developed after an initial precipitating brain injury. This form of epilepsy is frequently resistant to pharmacological treatment; therefore, the prevention of TLE is the prospective approach to TLE therapy. The lithium-pilocarpine model in rats replicates some of the main features of TLE in human, including the pathogenic mechanisms of cell damage and epileptogenesis after a primary brain injury. In the present study, we investigated changes in the properties of glutamatergic transmission during the first 3 days after pilocarpine-induced acute seizures in Wistar rats (PILO-rats)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28912503/systematic-review-and-meta-analysis-of-differentially-expressed-mirnas-in-experimental-and-human-temporal-lobe-epilepsy
#2
A Korotkov, J D Mills, J A Gorter, E A van Vliet, E Aronica
Temporal lobe epilepsy (TLE) is a common chronic neurological disease in humans. A number of studies have demonstrated differential expression of miRNAs in the hippocampus of humans with TLE and in animal models of experimental epilepsy. However, the dissimilarities in experimental design have led to largely discordant results across these studies. Thus, a comprehensive comparison is required in order to better characterize miRNA profiles obtained in various post-status epilepticus (SE) models. We therefore created a database and performed a meta-analysis of differentially expressed miRNAs across 3 post-SE models of epileptogenesis (electrical stimulation, pilocarpine and kainic acid) and human TLE with hippocampal sclerosis (TLE-HS)...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28899551/relationship-between-neuronal-network-architecture-and-naming-performance-in-temporal-lobe-epilepsy-a-connectome-based-approach-using-machine-learning
#3
REVIEW
B C Munsell, G Wu, J Fridriksson, K Thayer, N Mofrad, N Desisto, D Shen, L Bonilha
Impaired confrontation naming is a common symptom of temporal lobe epilepsy (TLE). The neurobiological mechanisms underlying this impairment are poorly understood but may indicate a structural disorganization of broadly distributed neuronal networks that support naming ability. Importantly, naming is frequently impaired in other neurological disorders and by contrasting the neuronal structures supporting naming in TLE with other diseases, it will become possible to elucidate the common systems supporting naming...
September 9, 2017: Brain and Language
https://www.readbyqxmd.com/read/28883807/comparing-cat12-and-vbm8-for-detecting-brain-morphological-abnormalities-in-temporal-lobe-epilepsy
#4
Farnaz Farokhian, Iman Beheshti, Daichi Sone, Hiroshi Matsuda
The identification of the brain morphological alterations that play important roles in neurodegenerative/neurological diseases will contribute to our understanding of the causes of these diseases. Various automated software programs are designed to provide an automatic framework to detect brain morphological changes in structural magnetic resonance imaging (MRI) data. A voxel-based morphometry (VBM) analysis can also be used for the detection of brain volumetric abnormalities. Here, we compared gray matter (GM) and white matter (WM) abnormality results obtained by a VBM analysis using the Computational Anatomy Toolbox (CAT12) via the current version of Statistical Parametric Mapping software (SPM12) with the results obtained by a VBM analysis using the VBM8 toolbox implemented in the older software SPM8, in adult temporal lobe epilepsy (TLE) patients with (n = 51) and without (n = 57) hippocampus sclerosis (HS), compared to healthy adult controls (n = 28)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28880168/a-new-dynamic-complex-baseband-pulse-compression-method-for-chirp-coded-excitation-in-medical-ultrasound-imaging
#5
Jinbum Kang, Yeajin Kim, Wooyoul Lee, Yangmo Yoo
Chirp-coded excitation can increase the signal-to-noise ratio (SNR) without degrading the axial resolution. Effective pulse compression (PC) is important to maintain the axial resolution and can be achieved with radio frequency (RF) and complex baseband (CBB) data (i.e., PCRF and PCCBB, respectively). PCCBB can further reduce the computational complexity compared to PCRF; however, PCCBB suffers from a degraded SNR due to tissue attenuation. In this study, we propose a new dynamic complex baseband pulse compression method (PCCBB-Dynamic) that can improve the SNR while compensating for tissue attenuation...
September 1, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28867568/psychogenic-nonepileptic-seizures-in-patients-with-surgically-treated-temporal-lobe-epilepsy-presurgical-and-de-novo-postsurgical-occurrence
#6
Karina A González Otárula, Yee-Leng Tan, François Dubeau, José A Correa, Edward Chang, Jeffery A Hall, Robert C Knowlton, Eliane Kobayashi
Whether occurring before or after an epilepsy surgery, psychogenic nonepileptic seizures (PNES) impact treatment options and quality of life of patients with epilepsy. We investigated the frequency of pre- and postsurgical PNES, and the postsurgical Engel and psychiatric outcomes in patients with drug-resistant temporal lobe epilepsy (TLE). We reviewed 278 patients with mean age at surgery of 37.1±12.4years. Postsurgical follow-up information was available in 220 patients, with average follow-up of 4years...
August 31, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28863828/quantitative-and-qualitative-analysis-of-semantic-verbal-fluency-in-patients-with-temporal-lobe-epilepsy
#7
A G Jaimes-Bautista, M Rodríguez-Camacho, I E Martínez-Juárez, Y Rodríguez-Agudelo
INTRODUCTION: Patients with temporal lobe epilepsy (TLE) perform poorly on semantic verbal fluency (SVF) tasks. Completing these tasks successfully involves multiple cognitive processes simultaneously. Therefore, quantitative analysis of SVF (number of correct words in one minute), conducted in most studies, has been found to be insufficient to identify cognitive dysfunction underlying SVF difficulties in TLE. OBJECTIVES: To determine whether a sample of patients with TLE had SVF difficulties compared with a control group (CG), and to identify the cognitive components associated with SVF difficulties using quantitative and qualitative analysis...
August 29, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28863320/ntrk2-trkb-gene-variants-and-temporal-lobe-epilepsy-a-genetic-association-study
#8
Carolina Machado Torres, Marina Siebert, Hugo Bock, Suelen Mandelli Mota, Bárbara Reis Krammer, Juliana Ávila Duarte, José Augusto Bragatti, Juliana Unis Castan, Luiza Amaral de Castro, Maria Luiza Saraiva-Pereira, Marino Muxfeldt Bianchin
OBJECTIVE: The NTRK2 gene encodes a member of the neurotrophic tyrosine kinase receptor family known as TrkB. It is a membrane-associated receptor with signaling and cellular differentiation properties that has been involved in neuropsychiatric disorders, including epilepsy. We report here the frequencies of NTRK2 allele variants in patients with temporal lobe epilepsy (TLE) compared to controls without epilepsy and explore the impact of these polymorphisms on major clinical variables in TLE...
August 25, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28860303/conservation-of-trna-mimicry-in-the-5-untranslated-region-of-distinct-hiv-1-subtypes
#9
Roopa Comandur, Erik D Olson, Karin Musier-Forsyth
Human tRNA(Lys3) serves as the primer for reverse transcription in human immunodeficiency virus type-1 (HIV-1) and anneals to the complementary primer binding site (PBS) in the genome. All tRNA(Lys) isoacceptors interact with human lysyl-tRNA synthetase (hLysRS) and are selectively packaged into virions. tRNA(Lys3) must be released from hLysRS in order to anneal to the PBS and this process is proposed to be facilitated by the interaction of hLysRS with a tRNA-like element (TLE) first identified in the HIV-1 5'-untranslated region (5'-UTR) of the subtype B NL4-3 virus...
August 31, 2017: RNA
https://www.readbyqxmd.com/read/28860087/pro-excitatory-alterations-in-sodium-channel-activity-facilitate-subiculum-neuron-hyperexcitability-in-temporal-lobe-epilepsy
#10
Bryan S Barker, Aradhya Nigam, Matteo Ottolini, Ronald P Gaykema, Nicholas J Hargus, Manoj K Patel
Temporal lobe epilepsy (TLE) is a common form of adult epilepsy involving the limbic structures of the temporal lobe. Subiculum neurons act to provide a major output from the hippocampus and consist of a large population of endogenously bursting excitatory neurons. In TLE, subiculum neurons are largely spared, become hyperexcitable and show spontaneous epileptiform activity. The basis for this hyperexcitability is unclear, but is likely to involve alterations in the expression levels and function of various ion channels...
August 30, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28859615/identification-of-predictive-markers-of-the-therapeutic-effect-of-eribulin-chemotherapy-for-locally-advanced-or-metastatic-breast-cancer
#11
Shinichiro Kashiwagi, Wakaba Fukushima, Yuka Asano, Wataru Goto, Koji Takada, Satoru Noda, Tsutomu Takashima, Naoyoshi Onoda, Masahiko Ohsawa, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: The recently developed reagent, eribulin mesylate (eribulin), is a microtubule dynamics inhibitor with a mechanism of action that differs from those of taxanes and vinca alkaloids. This drug is considered to be a promising chemotherapeutic agent for the treatment of locally advanced or metastatic breast cancer (MBC). In this study, we investigated if variables such as tumor expression of β-tubulin class III, glutathione S-transferase pi (GSTP) 1 or transducin-like enhancer of split (TLE) 3 might act as predictive factors on the therapeutic effect of eribulin chemotherapy...
August 31, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28858722/comprehension-and-production-of-nouns-and-verbs-in-temporal-lobe-epilepsy
#12
Anna Yurchenko, Alexander Golovteev, Dmitry Kopachev, Olga Dragoy
Previous research on linguistic performance at the single-word level in patients with temporal lobe epilepsy (TLE) has mostly been limited to the comprehension and production of nouns, and findings have been inconsistent. Results are likewise limited and controversial regarding the lateralization of the epileptogenic focus. The present study investigates comprehension and production of nouns and verbs in patients with left and right TLE (12 in each group). We designed a comprehension (word-picture matching) test and a production (naming) test, matched on a range of psycholinguistic parameters for the two word classes...
August 28, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28855095/lipids-of-dietzia-sp-a14101-part-i-a-study-of-the-production-dynamics-of-surface-active-compounds
#13
Ina Hvidsten, Svein Are Mjøs, Bjarte Holmelid, Gunhild Bødtker, Tanja Barth
Dietzia sp. A14101 belonging to the genus Dietzia (Gram-positive bacteria, Actinomycetes, high G+C content of DNA) was isolated from an oil reservoir model column inoculated with oil-field bacteria (Bødtker et al., 2009). Low interfacial tension (IFT) values were obtained by studying intact strain cells grown on water-immiscible hydrocarbons (HC) (Kowalewski et al. (2004), Kowalewski et al. (2005). Further investigations showed that the adaptation mechanism of Dietzia sp. A14101 to toxic water-immiscible HC involved changes both on the level of fatty acids content and in the physical properties of the cellular surface (development of the negative cellular surface charge and an increased in hydrophobicity) (Hvidsten et al...
August 31, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28846144/impact-of-icd-lead-on-the-system-durability-predictors-of-long-term-survival-following-icd-system-extraction
#14
Wojciech Jacheć, Andrzej Tomasik, Anna Polewczyk, Andrzej Kutarski
BACKGROUND: ICD and CRT-D systems are considered as having higher risk of complication and shorter durability but reasons of this multifactorial phenomenon remain unclear. We aimed to analyze this problem in population of patients with ICD leads referred for lead extraction (TLE). METHODS: We have compared TLE indications, procedural results and defined the long-term outcomes of TLE in patients with ICD / CRTD devices (n = 482, ICD(+)) with lead extractions in patients with standard pacemakers (n = 1402, ICD(-))...
August 28, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28843419/utility-of-intracardiac-echocardiography-during-transvenous-lead-extraction
#15
Mouhannad M Sadek, Joshua M Cooper, David S Frankel, Pasquale Santangeli, Andrew E Epstein, Francis E Marchlinski, Robert D Schaller
BACKGROUND: Transvenous lead extraction (TLE) carries a significant risk of intraprocedural complications. Phased-array intracardiac echocardiography (ICE) is widely used during cardiac procedures; however, its utility during TLE has not been well described. OBJECTIVE: We sought to define the utility of ICE imaging during TLE. METHODS: Fifty patients referred for TLE were included. Patients underwent ICE imaging before and throughout TLE. Clinical characteristics of the patients, ICE findings, and procedural outcomes were collected and analyzed...
August 24, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28843413/accelerated-long-term-forgetting-and-autobiographical-memory-disorders-in-temporal-lobe-epilepsy-one-entity-or-two
#16
REVIEW
B Lemesle, M Planton, B Pagès, J Pariente
Temporal lobe epilepsy (TLE) is a type of epilepsy that often has a negative impact on patients' memory. Despite the importance of patients' complaints in this regard, the difficulties described by these patients are often not easy to demonstrate through a standard neuropsychological assessment. Accelerated long-term forgetting and autobiographical memory disorders are the two main memory impairments reported in the literature in patients with TLE. However, the methods used by different authors to evaluate long-term memory and autobiographical memory are heterogeneous...
August 23, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28842304/establishment-of-a-rhesus-monkey-model-of-chronic-temporal-lobe-epilepsy-using-repetitive-unilateral-intra-amygdala-kainic-acid-injections
#17
Yajie Chi, Bolin Wu, Jianwei Guan, Kuntai Xiao, Ziming Lu, Xiao Li, Yuting Xu, Shan Xue, Qiang Xu, Junhua Rao, Yanwu Guo
OBJECTIVE: Temporal lobe epilepsy (TLE) is a common type of acquired epilepsy refractory to medical treatment. As such, establishing animal models of this disease is critical to developing new and effective treatment modalities. Because of their small head size, rodents are not suitable for comprehensive electroencephalography (EEG) evaluation via scalp or subdural electrodes. Therefore, a larger primate model that closely recapitulates signs of TLE is needed; here we describe a rhesus monkey model resembling chronic TLE...
September 6, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28842225/transvenous-lead-extraction-at-the-time-of-cardiac-implantable-electronic-device-upgrade-complexity-safety-and-outcomes
#18
Amr F Barakat, Oussama M Wazni, Khaldoun Tarakji, Walid I Saliba, Nayef Nimri, John Rickard, Michael Brunner, Mandeep Bhargava, Mohamed Kanj, Bryan Baranowski, David O Martin, Daniel Cantillon, Thomas Callahan, Thomas Dresing, Mark Niebauer, Mina Chung, Bruce D Lindsay, Bruce Wilkoff, Ayman A Hussein
BACKGROUND: The practice of lead abandonment at the time of cardiac implantable electronic device upgrade remains a controversial topic but is affecting an increasing number of patients. Inherent risks include high-risk extractions of redundant leads when extraction is required at a later date. OBJECTIVES: We aimed to report our experience with transvenous lead extraction (TLE) at the time of device upgrade. METHODS: All consecutive TLE procedures at the time of device upgrade at the Cleveland Clinic between 1996 and 2012 were included (n = 503)...
August 23, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28841245/marked-accumulation-of-oligodendroglia-like-cells-in-temporal-lobe-epilepsy-with-amygdala-enlargement-and-hippocampal-sclerosis
#19
Daichi Sone, Masako Ikemura, Yuko Saito, Go Taniguchi, Naoto Kunii
Although an increasing number of cases of temporal lobe epilepsy (TLE) with ipsilateral amygdala enlargement (AE) have been reported, there are few pathological reports, and no clear consensus has been established. Oligodendroglia or oligodendroglia-like cells (OLCs) have recently attracted attention in epilepsy studies. Here, we report the clinical and pathological findings of a 40-year-old male TLE patient with AE and hippocampal sclerosis, in whom histopathological study demonstrated remarkable clustering of OLCs around the uncus...
August 25, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28841161/disease-modifying-effects-of-the-spider-toxin-parawixin2-in-the-experimental-epilepsy-model
#20
Lívea Dornela Godoy, José Luiz Liberato, Marcus Vinícius Batista Celani, Leonardo Gobbo-Neto, Norberto Peporine Lopes, Wagner Ferreira Dos Santos
(1) Background: Temporal lobe epilepsy (TLE) is the most common type of epilepsy in adults. It is also the one with the highest percentage of drug-resistance to the current available anti-epileptic drugs (AED). Additionaly, most antiepileptic drugs are only able to control seizures in epileptogenesis, but do not decrease the hippocampal neurodegenerative process. TLE patients have a reduced population of interneuronal cells, which express Parvalbumin (PV) proteins. This reduction is directly linked to seizure frequency and severity in the chronic period of epilepsy...
August 25, 2017: Toxins
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