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1684 full-text articles. Page 1 of 67.

Perampanel, Michael A. Rogawski 2016 University of California - Davis

Perampanel, Michael A. Rogawski

Michael A. Rogawski

No abstract provided.


High Levels Of Iron Supplementation Prevents Neural Tube Defects In The Fpn1(Ffe) Mouse Model., Bethany A Stokes, Julia A Sabatino, Irene E. Zohn 2016 George Washington University

High Levels Of Iron Supplementation Prevents Neural Tube Defects In The Fpn1(Ffe) Mouse Model., Bethany A Stokes, Julia A Sabatino, Irene E. Zohn

Pediatrics Faculty Publications

BACKGROUND: Periconception maternal nutrition and folate in particular are important factors influencing the incidence of neural tube defects (NTDs). Many but not all NTDs are prevented by folic acid supplementation and there is a pressing need for additional strategies to prevent these birth defects. Other micronutrients such as iron are potential candidates, yet a clear role for iron deficiency in contributing to NTDs is lacking. Our previous studies with the flatiron (ffe) mouse model of Ferroportin1 (Fpn1) deficiency suggest that iron is required for neural tube closure and forebrain development raising the possibility that iron supplementation could prevent NTDs.

METHODS ...


Intravenous Ketamine For Subacute Treatment Of Refractory Chronic Migraine: A Case Series., Clinton Lauritsen, Santiago Mazuera, Richard B. Lipton, Sait Ashina 2016 Thomas Jefferson University

Intravenous Ketamine For Subacute Treatment Of Refractory Chronic Migraine: A Case Series., Clinton Lauritsen, Santiago Mazuera, Richard B. Lipton, Sait Ashina

Department of Neurology Faculty Papers

BACKGROUND: Refractory migraine is a challenging condition with great impact on health related quality of life. Intravenous (IV) ketamine has been previously used to treat various refractory pain conditions. We present a series of patients with refractory migraine treated with intravenous ketamine in the hospital setting.

METHODS: Based on retrospective chart review, we identified six patients with refractory migraine admitted from 2010 through 2014 for treatment with intravenous ketamine. Ketamine was administered using a standard protocol starting with a dose of 0.1 mg/kg/hr and increased by 0.1 mg/kg/hr every 3 to 4 h as ...


Post-Concussion Experiences Of Collegiate Student-Athletes, Kaitlin Iris Singer 2016 University of Tennessee, Knoxville

Post-Concussion Experiences Of Collegiate Student-Athletes, Kaitlin Iris Singer

Doctoral Dissertations

Sports-related concussions are a major public health concern affecting a significant number of collegiate student-athletes. Medical and public health research has addressed every aspect of concussion management processes including concussion education, medical diagnosis, recovery, and returning to sport and classroom. This research has led to several best-practices for concussion management. Since 2010, the NCAA has mandated that its member institutions maintain concussion management policies and procedures. However, the current recommendations, based primarily on medical research, have been found in quantitative studies of the behaviors and practices of athletic trainers, coaches, and student-athletes to be ineffective. To date, no studies have ...


New Roles For Metabotropic Glutamate Receptor Signaling In The Physiology And Pathology Of Dopamine Neurons, Paul Kramer 2016 Oregon Health & Science University

New Roles For Metabotropic Glutamate Receptor Signaling In The Physiology And Pathology Of Dopamine Neurons, Paul Kramer

Scholar Archive

G protein-coupled receptors (GPCRs) modulate the activity of neurons in many

ways on both short and long timescales. These receptors initiate intracellular

signaling cascades that can activate ion channels, suppress neurotransmitter

release, mobilize calcium release from stores, promote gene transcription,

increase or decrease adenylyl cyclase activity, and perform many other functions.

Therefore the comprehensive result of activating a single GPCR is not

straightforward, and will depend on the context in which that receptor was

stimulated.

Dopamine neurons synthesize and release dopamine throughout the

brain, and contribute to behaviors like movement, learning, and reward; as well

as many diseases of the ...


An Unusual Case Of Escherichia Coli Meningitis And Bacteremia In An Elderly Woman Presenting With Intractable Low Back Pain, Andrea M. Lauffer, Mahmoud Shorman, Carl McComas 2016 St. Mary's Medical Center, Huntington, WV

An Unusual Case Of Escherichia Coli Meningitis And Bacteremia In An Elderly Woman Presenting With Intractable Low Back Pain, Andrea M. Lauffer, Mahmoud Shorman, Carl Mccomas

Marshall Journal of Medicine

Abstract

Introduction:

We report an unusual case of E. coli meningitis in an elderly woman who presented to the emergency room with a chief complaint of intractable low back pain.

Case Description:

A 67 year old woman presented to the emergency room for a chief complaint of intractable low back pain. After admission, the patient developed delirium. Blood cultures were drawn. Patient underwent a lumbar puncture which revealed purulent cerebrospinal fluid. Results of the cerebrospinal fluid and blood cultures revealed pan-sensitive E. coli.

Conclusion:

In the geriatric population, delayed presentation of meningitis can occur for various reasons. With the older ...


Spinal Cord Injury And Autonomic Dysreflexia- A Case Report, Apurva Bhatt, Brit Moore, Talal Asif, Kristy E. Steigerwalt, Rebecca R. Pauly 2016 University of Missouri-Kansas City School of Medicine

Spinal Cord Injury And Autonomic Dysreflexia- A Case Report, Apurva Bhatt, Brit Moore, Talal Asif, Kristy E. Steigerwalt, Rebecca R. Pauly

Marshall Journal of Medicine

Autonomic dysreflexia (AD) is a life threatening condition affecting patients with spinal cord lesions T6 level and above. A 51 year old male with a history of paraplegia due to a C6 spinal cord injury (30 years prior) presented with recurrent debilitating episodic diaphoresis, hypertension, low body temperature, and bradycardia. Previous hospitalizations presumed sepsis from UTI to be the etiology, however on further evaluation his symptoms were consistent with undiagnosed AD. This article describes a unique case presentation and reviews AD in depth, including the etiology, pathophysiology and management.


A New Sv2a Ligand For Epilepsy, Michael A. Rogawski 2016 University of California - Davis

A New Sv2a Ligand For Epilepsy, Michael A. Rogawski

Michael A. Rogawski

Since the 1970s, racetams have been in use as cognitive enhancers. Levetiracetam was discovered to have antiseizure activity in animal models and was then found to bind to SV2A in synaptic and endocrine vesicles. Brivaracetam, an analog of levetiracetam, was identified in a medicinal chemistry campaign with the objective of discovering analogs with higher affinity at racetam-binding sites and greater antiseizure potency.


Neuromodulation, Stephen Silberstein 2016 Thomas Jefferson University

Neuromodulation, Stephen Silberstein

Department of Neurology Faculty Papers

Neuromodulation is a new promising treatment for headache disorders. It consists of peripheral nerve neurostimulation and central neurostimulation. © 2016, Touch Briefings. All rights reserved.


Exploring Patient And Family Satisfaction In Pediatric Neurological Surgery, Randa R. Barsoom, Todd A. Maugans, James F. Burrows, Paul Rosen 2016 Thomas Jefferson University

Exploring Patient And Family Satisfaction In Pediatric Neurological Surgery, Randa R. Barsoom, Todd A. Maugans, James F. Burrows, Paul Rosen

Student Papers

Introduction Patient and family satisfaction during outpatient visits is correlated with a continuance of care and likelihood to recommend the practice to others. Additionally, patient-family satisfaction can determine the success of the practice and influence medical outcomes. Utilizing a well-validated surveys instrument, patient and family satisfaction can be explored in the office setting. Methods During a consecutive 36 month period, a standardized and validated patient satisfaction survey instrument was provided to the family members of patients who presented to two pediatric neurosurgery clinics associated with Nemours Children's Health System. The completed surveys were analyzed statistically to identify correlations between ...


Calcium Regulation Of Inhibitory Synaptic Transmission, Courtney Willliams 2016 Oregon Health & Science University

Calcium Regulation Of Inhibitory Synaptic Transmission, Courtney Willliams

Scholar Archive

No abstract provided.


Kcnq2 Encephalopathy, John Millichap, Kristen Park, Tammy N. Tsuchida, Bruria Ben-Zeev, Lionel Carmant, On Behalf of the RIKEE Consortium 2016 George Washington University

Kcnq2 Encephalopathy, John Millichap, Kristen Park, Tammy N. Tsuchida, Bruria Ben-Zeev, Lionel Carmant, On Behalf Of The Rikee Consortium

Neurology Faculty Publications

Objective: To advance the understanding of KCNQ2 encephalopathy genotype–phenotype relationships and to begin to assess the potential of selective KCNQ channel openers as targeted treatments.

Methods: We retrospectively studied 23 patients with KCNQ2 encephalopathy, including 11 treated with ezogabine (EZO). We analyzed the genotype–phenotype relationships in these and 70 previously described patients.

Results: The mean seizure onset age was 1.8 ± 1.6 (SD) days. Of the 20 EEGs obtained within a week of birth, 11 showed burst suppression. When new seizure types appeared in infancy (15 patients), the most common were epileptic spasms (n = 8). At last ...


Histopathological Characterization Of The Dystrophic Phenotype And Development Of Therapeutic Candidates For A Gene Therapy Pre-Clinical Study In Dysferlin Deficient Mice, Leticia Fridman 2016 University of Massachusetts Medical School

Histopathological Characterization Of The Dystrophic Phenotype And Development Of Therapeutic Candidates For A Gene Therapy Pre-Clinical Study In Dysferlin Deficient Mice, Leticia Fridman

GSBS Dissertations and Theses

Dysferlin deficient muscular dystrophy is a devastating disease that leads to loss of mobility and quality of life in patients. Dysferlin is a 230 kD protein primarily expressed in skeletal muscle that functions in membrane resealing. Dysferlin loss of function leads to a decrease in the membrane resealing response after injury in skeletal muscle, which is thought to cause degeneration of the musculature over time. Dysferlin cDNA is 7.4 kb and exceeds AAV packaging capacity of ~ 5kb. This thesis focuses on the generation of mini dysferlin mutants that can be packaged in AAV for downstream testing of therapeutic efficacy ...


Mmp-9 And Mmp-2 Contribute To Neuronal Cell Death In Ipsc Models Of Frontotemporal Dementia With Mapt Mutations, Md Helal Uddin Biswas, Sandra Almeida, Rodrigo Lopez-Gonzalez, Wenjie Mao, Zhijun Zhang, Anna M. Karydas, Michael D. Geschwind, Jacek Biernat, Eva-Maria Mandelkow, Kensuke Futai, Bruce L. Miller, Fen-Biao Gao 2016 University of Massachusetts Medical School

Mmp-9 And Mmp-2 Contribute To Neuronal Cell Death In Ipsc Models Of Frontotemporal Dementia With Mapt Mutations, Md Helal Uddin Biswas, Sandra Almeida, Rodrigo Lopez-Gonzalez, Wenjie Mao, Zhijun Zhang, Anna M. Karydas, Michael D. Geschwind, Jacek Biernat, Eva-Maria Mandelkow, Kensuke Futai, Bruce L. Miller, Fen-Biao Gao

Open Access Articles

How mutations in the microtubule-associated protein tau (MAPT) gene cause frontotemporal dementia (FTD) remains poorly understood. We generated and characterized multiple induced pluripotent stem cell (iPSC) lines from patients with MAPT IVS10+16 and tau-A152T mutations and a control subject. In cortical neurons differentiated from these and other published iPSC lines, we found that MAPT mutations do not affect neuronal differentiation but increase the 4R/3R tau ratio. Patient neurons had significantly higher levels of MMP-9 and MMP-2 and were more sensitive to stress-induced cell death. Inhibitors of MMP-9/MMP-2 protected patient neurons from stress-induced cell death and recombinant MMP-9 ...


Human Ipsc-Derived Neuronal Model Of Tau-A152t Frontotemporal Dementia Reveals Tau-Mediated Mechanisms Of Neuronal Vulnerability, M. Catarina Silva, Sandra Almeida, Md Helal Uddin Biswas, Zhijun Zhang, Fen-Biao Gao, Stephen J. Haggarty 2016 Massachusetts General Hospital and Harvard Medical School

Human Ipsc-Derived Neuronal Model Of Tau-A152t Frontotemporal Dementia Reveals Tau-Mediated Mechanisms Of Neuronal Vulnerability, M. Catarina Silva, Sandra Almeida, Md Helal Uddin Biswas, Zhijun Zhang, Fen-Biao Gao, Stephen J. Haggarty

Open Access Articles

Frontotemporal dementia (FTD) and other tauopathies characterized by focal brain neurodegeneration and pathological accumulation of proteins are commonly associated with tau mutations. However, the mechanism of neuronal loss is not fully understood. To identify molecular events associated with tauopathy, we studied induced pluripotent stem cell (iPSC)-derived neurons from individuals carrying the tau-A152T variant. We highlight the potential of in-depth phenotyping of human neuronal cell models for pre-clinical studies and identification of modulators of endogenous tau toxicity. Through a panel of biochemical and cellular assays, A152T neurons showed accumulation, redistribution, and decreased solubility of tau. Upregulation of tau was coupled ...


Non-Psychotropic Cannabinoid Based Therapy Modulates Nociceptive Signaling Molecules, Microglia, And Pain Behavior In A Model Of Post-Concussion Headache, Jarred M. Stratton, Lan Cheng, Ashley L. Tyburski, Jessica Perino, Melanie B. Elliott 2016 Thomas Jefferson University

Non-Psychotropic Cannabinoid Based Therapy Modulates Nociceptive Signaling Molecules, Microglia, And Pain Behavior In A Model Of Post-Concussion Headache, Jarred M. Stratton, Lan Cheng, Ashley L. Tyburski, Jessica Perino, Melanie B. Elliott

Department of Neurosurgery Posters

Background & Objectives

Headache is a common symptom of post-concussion syndrome which may persist in a substantial portion of patients contributing to a poor quality of life and disability. There is a pressing need to develop novel treatments for post-traumatic headache as current treatments have a number of side effects, are contraindicated or lack efficacy. The Elliott laboratory first established models of post-traumatic headache demonstrating sensitization of trigeminal neurons in rodent models of post-traumatic headache using well-known nociceptive and behavioral markers in the pain and migraine fields1-3. Traumatic brain injury in mice increases expression of calcitonin gene related peptide (CGRP ...


Association Of Iron Deficiency Anemia In Children With Febrile Convulsions, Vikash Lal, Haresh Kumar, Shahina Hanif, Om Parkash, Suneel Arwani 2016 Dow University of Health Sciences, Karachi, Pakistan.

Association Of Iron Deficiency Anemia In Children With Febrile Convulsions, Vikash Lal, Haresh Kumar, Shahina Hanif, Om Parkash, Suneel Arwani

Pakistan Journal of Neurological Sciences (PJNS)

:To determine the association of iron deficiency anemia in children presented with febrile convulsion. Study Design: Case control study Setting: The pediatric unit III,Civil Hospital,Karachi. Duration: Six months from 30th April 2013 to 1st November 2013 Material and Methods: History regarding age, sex, developmental milestones, family history of febrile seizures or epilepsy, mean of the temperature peak at admission, and the underlying illness were recorded for all cases and controls, as well as details of seizure history, duration and frequency. Blood samples were collected in the Paediatric wardsfor measurements of hemoglobin, serum ferritin, MCV, MCH and MCHC, serum ...


“More Than Meets The Eye” Non Secretory Myeloma Presenting As Cidp In A Patient With Longstanding Diabetic Polyneuropathy. A Diagnostic And Therapeutic Challenge., Farheen Niazi, Arsalan Ahmad 2016 PAEC General hospital, Islamabad, Pakistan

“More Than Meets The Eye” Non Secretory Myeloma Presenting As Cidp In A Patient With Longstanding Diabetic Polyneuropathy. A Diagnostic And Therapeutic Challenge., Farheen Niazi, Arsalan Ahmad

Pakistan Journal of Neurological Sciences (PJNS)

Diagnosing chronic inflammatory polyradiculopathy in patients with pre-existing diabetic sensorimotor polyneuropathy is a diagnostic challenge. We present a case of a 69 years old who presented with weakness of legs for two months,he was diagnosed as having CIDP on the background of diabetic sensorimotor polyneuropathy, further and extensive workup revealed the final diagnosis of nonsecretory myeloma. Diagnosing non secretory myeloma is itself a diagnostic challenge and usually first line investigations for the workup of myeloma are negative as was the case in our patient. Our patient with CIDP had raised free light chains of kappa which made the final ...


Brainstem Tuberculoma As A Manifestation Of Paradoxical Reaction In A Patient With Tuberculous Meningitis., Farheen Niazi, Mazhar Badshah 2016 PAEC General hospital, Islamabad.

Brainstem Tuberculoma As A Manifestation Of Paradoxical Reaction In A Patient With Tuberculous Meningitis., Farheen Niazi, Mazhar Badshah

Pakistan Journal of Neurological Sciences (PJNS)

Tuberculosis commonly involves the CNS, During drug treatment of CNS tuberculosis paradoxical response (PR) may occasionally occur. The term “paradoxicalresponse”refers to the development of previously nonexistent tuberculosis lesions or worsening of preexisting lesions during antituberculosis treatment( ATT). Etiology is still not clear but delayed type hypersensitivity and alteration in immune system is thought to be a cause. Continued treatment improves PR without severe sequelae. We report a 41 year-old female patient with tuberculous meningitis(TBM) who developed brainstem tuberculomaduring the course of ATT, after about 9 months of treatment as a paradoxical response to ATT. Early identification, continuation of ...


Magnetic Resonance Imaging Of Intracranial Extramedullary Haematopoiesis In Β-Thalassemia: A Case Report, Mahnoor Hafeez, Ateeque Ahmed Khan 2016 Civil Hospital & Dow University of Health Sciences (DUHS), Karachi, Pakistan.

Magnetic Resonance Imaging Of Intracranial Extramedullary Haematopoiesis In Β-Thalassemia: A Case Report, Mahnoor Hafeez, Ateeque Ahmed Khan

Pakistan Journal of Neurological Sciences (PJNS)

We report the Magnetic Resonance Imaging of intracranial extramedullaryhematopoiesis in 21 years old β-thalassemic patient who presented to the Neurology Department of Civil Hospital Karachi with seizures. The MR exam revealed multiple intracranialextra-axial masses;isointense on T1W sequence and hypointenseon T1W, T2W, FLAIR, DWI sequence and ADC (b value= 1000 sec/mm2) with avid post contrast enhancement. Plain CT of the Head documented the presence of multiple hyperdenseextra-axial masses with mean value of 45 HU. Extramedullary hematopoiesis is the formation and development of blood cells in tissues outside of the medulla of the bone. The most common sites of involvement ...


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