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https://www.readbyqxmd.com/read/28633092/epilepsy-in-neurofibromatosis-type-1
#1
Anthony Pecoraro, Eric Arehart, William Gallentine, Rodney Radtke, Edward Smith, Carolyn Pizoli, Sujay Kansagra, Elie Abdelnour, Roger McLendon, Mohamad A Mikati
OBJECTIVES: To describe the characteristics of epilepsy in patients with Neurofibromatosis type 1 (NF1). METHODS: Analysis of a cohort of consecutive NF1 patients seen in our NF1 clinic during a three-year period. RESULTS: Of the 184 NF1 patients seen during that period, 26 had epilepsy and three had febrile seizures. Of the 26, 17 (65%) had localization-related epilepsy, seven of whom (41%) were drug resistant. Six (23%) had apparently primary generalized epilepsy (0/6 drug resistant), two (8%) Lennox-Gastaut syndrome, and one (4%) West syndrome (all three were drug-resistant)...
June 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28583638/a-phase-i-clinical-trial-of-the-knee-to-assess-the-correlation-of-gagcest-mri-delayed-gadolinium-enhanced-mri-of-cartilage-and-t2-mapping
#2
Wenbo Wei, Becky Lambach, Guang Jia, Christopher Kaeding, David Flanigan, Michael V Knopp
PURPOSE: Osteoarthritis (OA) is associated with the loss of glycosaminoglycan (GAG) during disease progression, which can be detected by glycosaminoglycan chemical exchange-dependent saturation transfer (gagCEST) MRI. Delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) is considered one of the standard methods for GAG quantification in vivo. This Phase I study assessed the correlation between gagCEST MRI and dGEMRIC in determining cartilage GAG concentration. Standard T2 mapping was used as a comparator with the two other methods...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28581827/therapeutic-efficacy-of-folate-receptor-targeted-amphiphilic-cyclodextrin-nanoparticles-as-a-novel-vehicle-for-paclitaxel-delivery-in-breast-cancer
#3
Nazlı Erdoğar, Güneş Esendağlı, Thorbjorn T Nielsen, Güldal Esendağlı-Yılmaz, Diğdem Yöyen-Ermiş, Batuhan Erdoğdu, Mustafa F Sargon, Hakan Eroğlu, Erem Bilensoy
Purpose The aim of this study is to test folate-conjugated cyclodextrin nanoparticles (FCD-1 and FCD-2) as a vehicle for reducing toxicity and increasing the antitumor efficacy of paclitaxel especially for metastatic breast cancer. Methods For the evaluation of PCX-loaded FCD nanoparticles, animal studies were realized in terms of survival rate, tumor size, weight change, metastazis and histopathological examination. Results FCD-1 displayed significant advantages such as efficient targeting of folate receptor positive breast cancer cells and having considerably lower toxicity compared to that of Cremophor®...
June 5, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28565831/clinical-characteristics-and-epilepsy-outcomes-following-surgery-caused-by-focal-cortical-dysplasia-type-iia-in-110-adult-epileptic-patients
#4
Yuqiang Sun, Xiaofeng Wang, Ningwei Che, Huamin Qin, Shuping Liu, Xinling Wu, Minghai Wei, Huakun Cheng, Jian Yin
The aim of the present study was to investigate the effects of surgical intervention of focal cortical dysplasia (FCD) IIa on the outcome of epilepsy, and to evaluate the prognostic factors of seizure freedom. Patient data from epilepsy surgeries were retrospectively reviewed at the Second Affiliated Hospital of Dalian Medical University between 2007 and 2015. A total of 110 patients with a definite pathological diagnosis of FCD IIa were included. Moreover, the clinical characteristics, seizure outcome and quality of life in adults with FCD IIa were evaluated...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28557904/characteristics-of-eeg-seizure-onset-patterns-recorded-from-subdural-electrodes-over-mri-visible-frontal-focal-cortical-dysplasia-type-iib-lesions
#5
Daisuke Hirozawa, Kiyohito Terada, Kazumi Matsuda, Keiko Usui, Naotaka Usui, Takayasu Tottori, Akihiko Kondo, Yasukiyo Araki, Yoshio Omote, Yumi Kashida, Hideki Mochizuki, Yushi Inoue
PURPOSE: Focal cortical dysplasia (FCD) is intrinsically epileptogenic, and an MRI-visible lesion typically constitutes the core part of the epileptogenic zone. We aimed to identify ictal EEG patterns that represent the epileptogenic zone by using subdural electrodes placed over the MRI-visible FCD lesion. METHODS: We selected seven patients with frontal lobe epilepsy caused by pathologically proven FCD type IIb who underwent preoperative intracranial EEG evaluation with subdural electrodes followed by resection surgery with seizure-free outcome...
May 25, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28552285/predictable-prosthetic-space-maintenance-during-staged-complete-mouth-rehabilitation
#6
Abdulaziz AlHelal, Sarah Bukhari, Mathew T Kattadiyil, Rami Jekki, Ankur Dahiya
Staged complete-mouth rehabilitation to accommodate a patient's financial constraints during the course of treatment is presented. Clear acrylic resin added to the anterior cameo surface of the maxillary fixed complete denture (FCD) served as a space maintainer. The restoration of the maxillary FCD addressed the patient's chief complaint. By adding the space maintainer, supraeruption of mandibular anterior teeth and encroachment of the prosthetic space, which could have resulted in additional treatment, was avoided...
May 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28525563/omics-biomarkers-in-ophthalmology
#7
Susette Lauwen, Eiko K de Jong, Dirk J Lefeber, Anneke I den Hollander
"Omics" refers to high-throughput analyses of genes, proteins, or metabolites in a biological system, and is increasingly used for ophthalmic research. These system-based approaches can unravel disease-related processes and are valuable for biomarker discovery. Furthermore, potential therapeutic targets can be identified based on omics results, and targeted follow-up experiments can be designed to gain molecular understanding of the disease and to test new therapies. Here, we review the application of omics techniques in eye diseases, focusing on age-related macular degeneration (AMD), diabetic retinopathy (DR), retinal detachment (RD), myopia, glaucoma, Fuchs' corneal dystrophy (FCD), cataract, keratoconus, and dry eyes...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28510905/zoomed-mri-guided-by-combined-eeg-meg-source-analysis-a-multimodal-approach-for-optimizing-presurgical-epilepsy-work-up-and-its-application-in-a-multi-focal-epilepsy-patient-case-study
#8
Ü Aydin, S Rampp, A Wollbrink, H Kugel, J -H Cho, T R Knösche, C Grova, J Wellmer, C H Wolters
In recent years, the use of source analysis based on electroencephalography (EEG) and magnetoencephalography (MEG) has gained considerable attention in presurgical epilepsy diagnosis. However, in many cases the source analysis alone is not used to tailor surgery unless the findings are confirmed by lesions, such as, e.g., cortical malformations in MRI. For many patients, the histology of tissue resected from MRI negative epilepsy shows small lesions, which indicates the need for more sensitive MR sequences...
May 16, 2017: Brain Topography
https://www.readbyqxmd.com/read/28491496/towards-in-vivo-focal-cortical-dysplasia-phenotyping-using-quantitative-mri
#9
REVIEW
Sophie Adler, Sara Lorio, Thomas S Jacques, Barbora Benova, Roxana Gunny, J Helen Cross, Torsten Baldeweg, David W Carmichael
Focal cortical dysplasias (FCDs) are a range of malformations of cortical development each with specific histopathological features. Conventional radiological assessment of standard structural MRI is useful for the localization of lesions but is unable to accurately predict the histopathological features. Quantitative MRI offers the possibility to probe tissue biophysical properties in vivo and may bridge the gap between radiological assessment and ex-vivo histology. This review will cover histological, genetic and radiological features of FCD following the ILAE classification and will explain how quantitative voxel- and surface-based techniques can characterise these features...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28455787/elevated-expression-of-trpc4-in-cortical-lesions-of-focal-cortical-dysplasia-ii-and-tuberous-sclerosis-complex
#10
Lu-Kang Wang, Xin Chen, Chun-Qing Zhang, Chao Liang, Yu-Jia Wei, Jiong Yue, Shi-Yong Liu, Hui Yang
Focal cortical dysplasia type II (FCD II) and tuberous sclerosis complex (TSC) are well-known causes of chronic refractory epilepsy in children. Canonical transient receptor potential channels (TRPCs) are non-selective cation channels that are commonly activated by phospholipase C (PLC) stimulation. Previous studies found that TRPC4 may participate in the process of epileptogenesis. This study aimed to examine the expression and distribution of TRPC4 in FCD II (n = 24) and TSC (n = 11) surgical specimens compared with that in age-matched autopsy control samples (n = 12)...
June 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28450726/effect-of-drd4-receptor-616-c-g-polymorphism-on-brain-structure-and-functional-connectivity-density-in-pediatric-primary-nocturnal-enuresis-patients
#11
Bing Yu, Na Chang, Yao Lu, Hongwei Ma, Na Liu, Qiyong Guo
The dopamine D4 receptor (DRD4) promoter (-616; rs747302) has been associated with primary nocturnal enuresis (PNE); however, its relationship with neuroimaging has not been investigated. Therefore, we assessed the effects of the DRD4 -616 C/G single nucleotide polymorphism on the gray matter volume (GMV) and functional connectivity density (FCD) during resting-state functional magnetic resonance imaging in children with PNE using voxel-based morphometry and FCD methods. Genomic and imaging data were obtained from 97 children with PNE and 105 healthy controls...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28441637/subtle-pathological-changes-in-neocortical-temporal-lobe-epilepsy
#12
Juan G Ochoa, Diana Hentgarden, Audrey Paulzak, Melissa Ogden, Richard Pryson, Markus Lamle, Walter G Rusyniak
This was a prospective observational study to correlate the clinical symptoms, electrophysiology, imaging, and surgical pathology of patients with temporal lobe epilepsy (TLE) without hippocampal sclerosis. We selected consecutive patients with TLE and normal MRI undergoing temporal lobe resection between April and September 2015. Clinical features, imaging, and functional data were reviewed. Intracranial monitoring and language mapping were performed when it was required according to our team recommendation...
June 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28430287/dysembryoplastic-neuroepithelial-tumour-insight-into-the-pathology-and-pathogenesis
#13
Iwona Sontowska, Ewa Matyja, Jacek Malejczyk, Wieslawa Grajkowska
<i>Dysembryoplastic neuroepithelial tumour (DNT) is categorized as a benign glioneuronal neoplasm affecting children and young adults with chronic epileptic seizures. It is characterized by predominant intracortical localization and nodular architecture. Dysembryoplastic neuroepithelial tumour usually demonstrates a distinctive morphological pattern with a specific glioneuronal element but occasionally, its morphological picture is heterogeneous and unspecific. Thus, considering the morphology of DNT, three different histopathological subtypes are distinguished: simple, complex, and non-specific and diffuse...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28410464/surgical-outcomes-in-two-different-age-groups-with-focal-cortical-dysplasia-type-ii-any-real-difference
#14
Jorge Luis Ramírez-Molina, Roberta Di Giacomo, Valeria Mariani, Francesco Deleo, Francesco Cardinale, Angélica María Uscátegui-Daccarett, Pablo Lorenzana, Laura Tassi
OBJECTIVE: Focal Cortical Dysplasias (FCDs) represent a common architectural cortical disorder underlying drug-resistant focal epilepsy. So far, studies aimed at evaluating whether age at surgery is a factor influencing surgical outcome are lacking, so that data on the comparison between patients harboring Type II FCD operated at younger age and those operated at adult age are still scarce. We compared presurgical clinical features and surgical outcomes of patients with histopathologically diagnosed Type II FCD undergoing surgery at an earlier age with those operated after 20 years of age...
May 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28407554/transdiagnostic-differences-in-the-resting-state-functional-connectivity-of-the-prefrontal-cortex-in-depression-and-schizophrenia
#15
Xi Chen, Chang Liu, Hui He, Xin Chang, Yuchao Jiang, Yingjia Li, Mingjun Duan, Jianfu Li, Cheng Luo, Dezhong Yao
BACKGROUND: Depression and schizophrenia are two of the most serious psychiatric disorders. They share similar symptoms but the pathology-specific commonalities and differences remain unknown. This study was conducted to acquire a full picture of the functional alterations in schizophrenia and depression patients. METHODS: The resting-state fMRI data from 20 patients with schizophrenia, 20 patients with depression and 20 healthy control subjects were collected. A data-driven approach that included local functional connectivity density (FCD) analysis combined with multivariate pattern analysis (MVPA) was used to compare the three groups...
August 1, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28398578/social-anxiety-disorder-exhibit-impaired-networks-involved-in-self-and-theory-of-mind-processing
#16
Qian Cui, Eric J Vanman, Zhiliang Long, Yajing Pang, Yuyan Chen, Yifeng Wang, Qiyong Gong, Wei Zhang, Heng Chen, Xujun Duan, Huafu Chen
Most previous studies regarding social anxiety disorder (SAD) have focused on the role of emotional dysfunction, while impairments in self- and theory of mind (ToM)-processing have been relatively neglected. The present study utilised functional connectivity density (FCD), resting-state functional connectivity (RSFC), and discriminant analyses to investigate impairments in self- and ToM-related networks in patients with SAD. Patients with SAD exhibited decreased long-range FCD in the right rostral anterior cingulate cortex (rACC) and decreased short-range FCD in the right superior temporal gyrus (STG)-key nodes involved in self- and ToM-processing, respectively...
April 7, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28384161/microrna-hsa-mir-134-is-a-circulating-biomarker-for-mesial-temporal-lobe-epilepsy
#17
Simoni H Avansini, Beatriz Pereira de Sousa Lima, Rodrigo Secolin, Marilza L Santos, Ana Carolina Coan, André S Vieira, Fábio R Torres, Benilton S Carvalho, Marina K M Alvim, Márcia E Morita, Clarissa L Yasuda, Luciana R Pimentel-Silva, Danyella B Dogini, Fabio Rogerio, Fernando Cendes, Iscia Lopes-Cendes
Epilepsy is misdiagnosed in up to 25% of patients, leading to serious and long-lasting consequences. Recently, circulating microRNAs have emerged as potential biomarkers in a number of clinical scenarios. The purpose of this study was to identify and to validate circulating microRNAs that could be used as biomarkers in the diagnosis of epilepsy. Quantitative real-time PCR was used to measure plasma levels of three candidate microRNAs in two phases of study: an initial discovery phase with 14 patients with mesial temporal lobe epilepsy (MTLE), 13 with focal cortical dysplasia (FCD) and 16 controls; and a validation cohort constituted of an independent cohort of 65 patients with MTLE and 83 controls...
2017: PloS One
https://www.readbyqxmd.com/read/28377176/short-and-long-range-functional-connectivity-density-alterations-in-adolescents-with-pure-conduct-disorder-at-resting-state
#18
Feng-Mei Lu, Jian-Song Zhou, Xiao-Ping Wang, Yu-Tao Xiang, Zhen Yuan
Conduct disorder (CD) is a developmental disorder defined by a repetitive and persistent display of antisocial and aggressive behaviors that violates the rights of others or basic social rules. Recently, resting-state functional magnetic resonance imaging (rsfMRI) has been widely adopted to investigate the altered intrinsic neural activities and the disrupted endogenous brain connectivity of CD. In this study, functional connectivity density (FCD) mapping, a newly developed ultrafast voxel-wise method based on rsfMRI, was applied for the first time to examine the changes in the brain functional connectivity in CD at the voxel level...
April 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28366397/improved-real-time-pcr-method-for-quantification-of-the-abundance-of-all-known-ribotypes-of-the-ichthyotoxic-dinoflagellate-cochlodinium-polykrikoides-by-comparing-4-different-preparation-methods
#19
Sung Yeon Lee, Hae Jin Jeong, Kyeong Ah Seong, An Suk Lim, Ji Hye Kim, Kyung Ha Lee, Moo Joon Lee, Se Hyeon Jang
Red tides by the ichthyotoxic dinoflagellate Cochlodinium polykrikoides have caused large scaled mortality of fish and great loss in aquaculture industry in many countries. Detecting and quantifying the abundance of this species are the most critical step in minimizing the loss. The conventional quantitative real-time PCR (qPCR) method has been used for quantifying the abundance of this species. However, when analyzing >500 samples collected during huge C. polykrikoides red tides in South Sea of Korea in 2014, this conventional method and the previously developed specific primer and probe set for C...
March 2017: Harmful Algae
https://www.readbyqxmd.com/read/28336262/increased-susceptibility-to-fundus-camera-delivered-light-induced-retinal-degeneration-in-mice-deficient-in-oxidative-stress-response-proteins
#20
Yi Ding, Bogale Aredo, Xin Zhong, Cynthia X Zhao, Rafael L Ufret-Vincenty
Oxidative stress is an important contributor to the pathogenesis of many retinal diseases including age-related macular degeneration and retinal dystrophies. Light-induced retinal degeneration (LIRD) can serve as a model in which to study the response of the retina to stress. Of note, many genetic mutant mice are in a C57BL/6 J background and are thus resistant to the usual LIRD models. We recently developed a new model of fundus camera-delivered light-induced retinal degeneration (FCD-LIRD) which is effective in strains of mice expressing the light-resistant variant of RPE65 (450Met), including C57BL/6 J...
March 20, 2017: Experimental Eye Research
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