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Full-Text Articles in Medicine and Health Sciences

Predicting The Laterality Of Temporal Lobe Epilepsy From Pet, Mri, And Dti: A Multimodal Study., Dorian Pustina, Brian Avants, Michael R Sperling, Richard Gorniak, Xiaosong He, Gaelle Eve Doucet, Paul Barnett, Ms, Scott Mintzer, Ashwini Sharan Md, Joseph I Tracy Aug 2015

Predicting The Laterality Of Temporal Lobe Epilepsy From Pet, Mri, And Dti: A Multimodal Study., Dorian Pustina, Brian Avants, Michael R Sperling, Richard Gorniak, Xiaosong He, Gaelle Eve Doucet, Paul Barnett, Ms, Scott Mintzer, Ashwini Sharan Md, Joseph I Tracy

Department of Neurology Faculty Papers

Pre-surgical evaluation of patients with temporal lobe epilepsy (TLE) relies on information obtained from multiple neuroimaging modalities. The relationship between modalities and their combined power in predicting the seizure focus is currently unknown. We investigated asymmetries from three different modalities, PET (glucose metabolism), MRI (cortical thickness), and diffusion tensor imaging (DTI; white matter anisotropy) in 28 left and 30 right TLE patients (LTLE and RTLE). Stepwise logistic regression models were built from each modality separately and from all three combined, while bootstrapped methods and split-sample validation verified the robustness of predictions. Among all multimodal asymmetries, three PET asymmetries formed the …


Dysregulation Of Kv3.4 Channels In Dorsal Root Ganglia Following Spinal Cord Injury., David Ritter, Benjamin M Zemel, Tamara J Hala, Michael E O'Leary, Angelo C Lepore, Manuel Covarrubias Jan 2015

Dysregulation Of Kv3.4 Channels In Dorsal Root Ganglia Following Spinal Cord Injury., David Ritter, Benjamin M Zemel, Tamara J Hala, Michael E O'Leary, Angelo C Lepore, Manuel Covarrubias

Farber Institute for Neuroscience Faculty Papers

Spinal cord injury (SCI) patients develop chronic pain involving poorly understood central and peripheral mechanisms. Because dysregulation of the voltage-gated Kv3.4 channel has been implicated in the hyperexcitable state of dorsal root ganglion (DRG) neurons following direct injury of sensory nerves, we asked whether such a dysregulation also plays a role in SCI. Kv3.4 channels are expressed in DRG neurons, where they help regulate action potential (AP) repolarization in a manner that depends on the modulation of inactivation by protein kinase C (PKC)-dependent phosphorylation of the channel's inactivation domain. Here, we report that, 2 weeks after cervical hemicontusion SCI, injured …