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Full-Text Articles in Medicine and Health Sciences

High Frequency Oscillations Are Phase-Amplitude Coupled In Stress Induced Seizures Following Traumatic Brain Injury, Paul Jung Oct 2019

High Frequency Oscillations Are Phase-Amplitude Coupled In Stress Induced Seizures Following Traumatic Brain Injury, Paul Jung

Electronic Thesis and Dissertation Repository

Traumatic Brain Injury (TBI) often leads to the development of epilepsy, especially with the occurrence of stressful events. Stressors increase the levels of corticotropin-releasing factor (CRF) in the amygdala, which can be damaged by the secondary effects of TBI. It is hypothesized that the activity of CRF receptor type 1 (CRFR1) in the amygdala is altered post-TBI and supports the generation of epileptiform waves, namely high-frequency oscillations (HFOs). Sprague-Dawley rats were given a moderate TBI and in vivo recordings of the amygdala were taken during the administration of an acute tail pinch stressor. The stressor increased broadband activity …


Cannabidiol Is Beneficial In Management Of Drug-Resistant Dravet Syndrome, Nikita Desai Sep 2019

Cannabidiol Is Beneficial In Management Of Drug-Resistant Dravet Syndrome, Nikita Desai

Clinical Research in Practice: The Journal of Team Hippocrates

A critical appraisal and clinical application of Devinsky O, Cross H, Laux L, et al. Trial of Cannabidiol for Drug-Resistant Seizures in the Dravet Syndrome. N Engl J Med. 2017;376(21):2011-2020. doi: 10.1056/NEJMoa1611618.


Targeting Pathogenic Lafora Bodies In Lafora Disease Using An Antibody-Enzyme Fusion, M. Kathryn Brewer, Annette M. Uittenbogaard, Grant L. Austin, Dyann M. Segvich, Anna Depaoli-Roach, Peter J. Roach, John J. Mccarthy, Zoe R. Simmons, Jason A. Brandon, Zhengqiu Zhou, Jill Zeller, Lyndsay E. A. Young, Ramon C. Sun, James R. Pauly, Nadine M. Aziz, Bradley L. Hodges, Tracy R. Mcknight, Dustin D. Armstrong, Matthew S. Gentry Jul 2019

Targeting Pathogenic Lafora Bodies In Lafora Disease Using An Antibody-Enzyme Fusion, M. Kathryn Brewer, Annette M. Uittenbogaard, Grant L. Austin, Dyann M. Segvich, Anna Depaoli-Roach, Peter J. Roach, John J. Mccarthy, Zoe R. Simmons, Jason A. Brandon, Zhengqiu Zhou, Jill Zeller, Lyndsay E. A. Young, Ramon C. Sun, James R. Pauly, Nadine M. Aziz, Bradley L. Hodges, Tracy R. Mcknight, Dustin D. Armstrong, Matthew S. Gentry

Molecular and Cellular Biochemistry Faculty Publications

Lafora disease (LD) is a fatal childhood epilepsy caused by recessive mutations in either the EPM2A or EPM2B gene. A hallmark of LD is the intracellular accumulation of insoluble polysaccharide deposits known as Lafora bodies (LBs) in the brain and other tissues. In LD mouse models, genetic reduction of glycogen synthesis eliminates LB formation and rescues the neurological phenotype. Therefore, LBs have become a therapeutic target for ameliorating LD. Herein, we demonstrate that human pancreatic α-amylase degrades LBs. We fused this amylase to a cell-penetrating antibody fragment, and this antibody-enzyme fusion (VAL-0417) degrades LBs in vitro and dramatically reduces LB …


Crf Mediates Stress-Induced Pathophysiological High-Frequency Oscillations In Traumatic Brain Injury, Chakravarthi Narla, Paul S. Jung, Francisco Bautista Cruz, Michelle Everest, Julio Martinez-Trujillo, Michael O. Poulter Mar 2019

Crf Mediates Stress-Induced Pathophysiological High-Frequency Oscillations In Traumatic Brain Injury, Chakravarthi Narla, Paul S. Jung, Francisco Bautista Cruz, Michelle Everest, Julio Martinez-Trujillo, Michael O. Poulter

Physiology and Pharmacology Publications

Copyright © 2019 Narla et al. It is not known why there is increased risk to have seizures with increased anxiety and stress after traumatic brain injury (TBI). Stressors cause the release of corticotropin-releasing factor (CRF) both from the hypothalamic pituitary adrenal (HPA) axis and from CNS neurons located in the central amygdala and GABAergic interneurons. We have previously shown that CRF signaling is plastic, becoming excitatory instead of inhibitory after the kindling model of epilepsy. Here, using Sprague Dawley rats we have found that CRF signaling increased excitability after TBI. Following TBI, CRF type 1 receptor (CRFR1)-mediated activity caused …


Optimum Recording Time Of Routine Electroencephalogram For Adults With Epilepsy*, Kemal Tutkavul, Yilmaz Çeti̇nkaya Jan 2019

Optimum Recording Time Of Routine Electroencephalogram For Adults With Epilepsy*, Kemal Tutkavul, Yilmaz Çeti̇nkaya

Turkish Journal of Medical Sciences

Background/aim: This study aimed to reveal the optimum recording time of routine electroencephalogram (EEG) for adults with epilepsy.Materials and methods: In this clinical observational study we investigated features of paroxysms that emerged in EEGs recorded for 45 min in adults with epilepsy.Results: Paroxysms were detected in 38.14% of 97 patients. The probability of occurrence of paroxysm during the first 10 min was found to be statistically significantly low in comparison to the first 30 and 45 min (respectively P = 0.004, P = 0.0001). This probability was found to increase insignificantly when comparing the first 20 min with the first …


High Rates Of Malnutrition And Epilepsy: Two Common Comorbidities In Children With Cerebral Palsy, Kürşad Aydin, Ayşe Kartal, Esma Keleş Alp Jan 2019

High Rates Of Malnutrition And Epilepsy: Two Common Comorbidities In Children With Cerebral Palsy, Kürşad Aydin, Ayşe Kartal, Esma Keleş Alp

Turkish Journal of Medical Sciences

The aim of this study was to evaluate the nutritional status of children with cerebral palsy and determine the particular characteristics of the disorder. Materials and methods: The nutritional status of the children was assessed by the Gomez classification using weight-for-age. The Gross Motor Function Classification System was used to determine the gross and fine motor functions.Results: The study was conducted with 197 children (58.4% males) between the ages of 1 and 18 years old. Asphyxia (44.1%) was the primary etiological factor, and spastic quadriplegia (41.6%) was the most common type of cerebral palsy. Malnutrition was the most frequent comorbidity …


Normative Hippocampal Volumetric Measurements Using Magnetic Resonance Imaging, Meltem Özdemi̇r, Handan Soysal, Önder Eraslan, Alper Di̇lli̇ Jan 2019

Normative Hippocampal Volumetric Measurements Using Magnetic Resonance Imaging, Meltem Özdemi̇r, Handan Soysal, Önder Eraslan, Alper Di̇lli̇

Turkish Journal of Medical Sciences

Background/aim: A wide variety of neurological and psychiatric disorders have been shown to be closely related to changes in hippocampal volume (HV). It appears that hippocampal volumetry will be an indispensable part of clinical practice for a number of neuropsychiatric disorders in the near future. The aim of this study was to establish a normative data set for HV according to age and sex in the general population.Materials and methods: Hippocampal magnetic resonance imaging scans of 302 healthy volunteers were obtained using a 1.5 T unit with a 20-channel head coil. The hippocampal volumetric assessment was conducted using the volBrain …