Neurology Commons^™

Depression And Anxiety In Patients With Epilepsy, With Or Without Other Chronic Disorders., A A Asadi-Pooya, M R Sperling

Department of Neurology Faculty Papers

BACKGROUND: Most people with epilepsy lead a normal emotional and cognitive life, however neurobehavioral problems can be found in a large number of patients. This study evaluates the prevalence of depression and anxiety among patients with epilepsy and determines whether having other chronic somatic illnesses increases the prevalence.

METHODS: Adults with epilepsy were recruited in either the inpatient epilepsy monitoring unit or the Outpatient Epilepsy Clinic at Thomas Jefferson University in 2006. Patients anonymously filled out a questionnaire, included data about age, sex, education, having other chronic illnesses, and degree of seizure control. The Hospital Anxiety and Depression scale was …

What Are The Therapeutic Options For Strokes Secondary To Intracranial Large Artery Stenosis?, Maria Khan, Ayeesha Kamran Kamal

Department of Medicine

No abstract provided.

Cilostazol Versus Aspirin For Secondary Prevention Of Vascular Events After Stroke Of Arterial Origin, Ayeesha Kamran Kamal, Imama Naqvi, Muhammad R Husain, Bhojo A Khealani

Section of Neurology

Background:Aspirin is widely used for secondary prevention after stroke. Cilostazol has shown promise as an alternative to aspirin in Asian people with stroke. ObjectiveS: To determine the relative effectiveness and safety of cilostazol compared directly with aspirin in the prevention of stroke and other serious vascular events in Patients at high vascular risk for subsequent stroke, those with previous transient ischaemic attack (TIA) or ischaemic stroke of arterial origin. SEARCH STRATEGY: We searched the Cochrane Stroke Group Trials Register (last searched September 2010), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2009, Issue 4), MEDLINE (1950 …

A Test Of The Role Of The Medial Temporal Lobe In Single-Word Decoding., Karol Osipowicz, Tyler Rickards, Atif Shah, Ashwini Sharan, Michael Sperling, Waseem Kahn, Joseph Tracy

Department of Neurology Faculty Papers

The degree to which the MTL system contributes to effective language skills is not well delineated. We sought to determine if the MTL plays a role in single-word decoding in healthy, normal skilled readers. The experiment follows from the implications of the dual-process model of single-word decoding, which provides distinct predictions about the nature of MTL involvement. The paradigm utilized word (regular and irregularly spelled words) and pseudoword (phonetically regular) stimuli that differed in their demand for non-lexical as opposed lexical decoding. The data clearly showed that the MTL system was not involved in single word decoding in skilled, native …

Learning From Mistakes: Improving Initial Fingertip Force Scaling By Observing Lifting Errors, Gavin Buckingham, Minnie Tang, Paul Gribble, Melvyn A. Goodale

Psychology Presentations

• When lifting objects that are lighter or heaver than we expect them to be, individuals typically misapply forces in a way that reflects their prior expectations of heaviness.

• Because we lift in this predictive way, large and small cubes elicit these characteristic errors even when they are adjusted to have equal mass. Lifters will apply too much force to a large cube and substantially less force to a small cube – errors that are rapidly corrected with repeated lifts (Flanagan & Beltzner, 2000).

• When watching others lift objects, an observer’s motor system automatically reacts in a way …

A Proposed Mechanism For Drug-Induced Nightmares, Isaac Brezner

The Science Journal of the Lander College of Arts and Sciences

The following is the introduction of this article: The fields of neuropharmacology and psychopharmacology are known to be highly connected, despite our severe lack of knowledge in these fields. One of the many overlaps between the two fields is sleep, which itself entails many mechanisms and events which are, as of yet, unexplainable. From the perspective of either field, one of the most mysterious events occurring during sleep is dreaming. From the cause of dreams to their content, little is known about them or their more sinister subclassification: nightmares. In this field of disturbed dreaming, neuropharmacology makes a large intrusion …

Anti-Saccade Performance Predicts Executive Function And Brain Structure In Normal Elders, J. B. Mirsky, H. W. Heuer, A. Jafari, J. H. Kramer, A. K. Schenk, Indre Viskontas, B. L. Miller, A. L. Boxer

Psychology

Objective—To assess the neuropsychological and anatomical correlates of anti-saccade (AS) task performance in normal elders.

Background—The AS task correlates with neuropsychological measures of executive function and frontal lobe volume in neurological diseases, but has not been studied in a well-characterized normal elderly population. Because executive dysfunction can indicate an increased risk for cognitive decline in cognitively normal elders, we hypothesized that AS performance might be a sensitive test of age-related processes that impair cognition.

Method—The percentage of correct AS responses was evaluated in forty-eight normal elderly subjects and compared with neuropsychological test performance using linear regression analysis …

Multimodal Cuing Of Autobiographical Memory In Semantic Dementia, D. L. Greenberg, J. M. Ogar, Indre Viskontas, M. L. Gorno Tempini, B. Miller, B. J. Knowlton

Psychology

OBJECTIVE: Individuals with semantic dementia (SD) have impaired autobiographical memory (AM), but the extent of the impairment has been controversial. According to one report (Westmacott, Leach, Freedman, & Moscovitch, 2001), patient performance was better when visual cues were used instead of verbal cues; however, the visual cues used in that study (family photographs) provided more retrieval support than do the word cues that are typically used in AM studies. In the present study, we sought to disentangle the effects of retrieval support and cue modality.

METHOD: We cued AMs of 5 patients with SD and 5 controls with words, simple …

Genetic Analysis Of The Neurosteroid Deoxycorticosterone And Its Relation To Alcohol Phenotypes: Identification Of Qtls And Downstream Gene Regulation, Patrizia Porcu, Todd K. O'Buckley, Soomin C. Song, Jo Lynne Harenza, Lu Lu, Xusheng Wang, Michael F. Miles, A. Leslie Morrow

Neurology Publications

Background

Deoxycorticosterone (DOC) is an endogenous neurosteroid found in brain and serum, precursor of the GABAergic neuroactive steroid (3α,5α)-3,21-dihydroxypregnan-20-one (tetrahydrodeoxycorticosterone, THDOC) and the glucocorticoid corticosterone. These steroids are elevated following stress or ethanol administration, contribute to ethanol sensitivity, and their elevation is blunted in ethanol dependence.

Methodology/Principal Findings

To systematically define the genetic basis, regulation, and behavioral significance of DOC levels in plasma and cerebral cortex we examined such levels across 47 young adult males from C57BL/6J (B6)×DBA/2J (D2) (BXD) mouse strains for quantitative trait loci (QTL) and bioinformatics analyses of behavior and gene regulation. Mice were injected with saline …

Gestational Diabetes Clinic For Indigent Latinos, Sara Wilson Reece

Scholarly Posters

Gestational diabetes mellitus (GDM), “carbohydrate intolerance of variable severity with onset or fist recognition during pregnancy,” results from insulin resistance and relative insulin deficiency usually in second trimester.¹ • Gestational diabetes (GDM) impacts between 4% and 9% of all pregnancies. • Gestational diabetes (GDM) results in increased fetal complications of macrosomia, shoulder dystocia and neonatal hyperglycemia as well as maternal risks of preeclampsia and polyhydramnois. • Women who are Hispanic or Asian decent are at highest risk of developing GDM. • Diagnosis ² • Perform 75-gramoral glucose tolerance test (OGTT) at 24 – 28 weeks of gestation in women not …

Analysis Of Chlamydia Pneumoniae And Ad-Like Pathology In The Brains Of Balb/C Mice Following Direct Intra-Cranial Infection, Jessica Rachel Barton, Christine J. Hammond, Amy L. Brady, Denah M. Appelt, Brian J. Balin, Christopher Scott Little

Scholarly Posters

Alzheimer’s disease (AD) is an age-related progressive neurodegenerative disorder and the most common form of dementia. The pathology in the central nervous system (CNS) impairs memory and cognition, hindering the capabilities and the quality of life of the individual. This project continues studying the role of infection and Alzheimer’s disease, as previous studies in this laboratory have done, and contributes to the overall understanding of the possible causes of this disease. In this study, BALB/c mice were infected, via direct intracranial injection, with a respiratory isolate (AR-39) of Chlamydia pneumoniae. Their brains were analyzed at 7 and 14 days post-infection, …

Analysis Of Chlamydia Pneumoniae-Infected Monocytes Following Incubation With A Novel Peptide, Acaly18, Implicates The Inflammasome In Clearance Of Infection, Brian J. Balin, James D. Thacker, Charles Lim, Corey M. Caruthers, Susan T. Hingley, Juliana Zoga, Denah M. Appelt

Scholarly Posters

Chlamydia pneumoniae infection may be a trigger for the pathology observed in sporadic lateonset Alzheimer’s disease as a function of initiating neuroinflammation following entry of the organism into the brain. We have hypothesized that one entry mechanism may be by bloodborne infected monocytes trafficking the infection into the brain. This study focuses on infection of monocytes in vitro followed by analysis using immunofluorescence labeling and RT-PCR-microarray techniques. The microarrays utilized consisted of an Alzheimer’s disease pathway array and an innate and adaptive immunity array from SAbiosciences. Analysis by real time PCR for both gene arrays was performed on uninfected and …

Unilateral Thalamic Infarction Presenting As Vertical Gaze Palsy: A Case Report, Muhib Khan, Christos Sidiropoulos, Panayiotis Mitsias

Wayne State University Associated BioMed Central Scholarship

Abstract

Introduction

Vertical gaze palsy is a recognized manifestation of midbrain lesions. It rarely is a consequence of unilateral thalamic infarction.

Case presentation

We report the case of a 48-year-old African-American woman who presented to our facility with vertical gaze palsy and evidence of left medial thalamic infarct on diffusion-weighted imaging without coexisting midbrain ischemia. The etiology of infarct was determined to be small vessel disease after extensive investigation.

Conclusions

This report suggests a possible role of the thalamus as a vertical gaze control center. Clinicoradiological studies are needed to further define the role of the thalamus in vertical gaze …

The Cns Microvascular Pericyte: Pericyte-Astrocyte Crosstalk In The Regulation Of Tissue Survival, Drew Bonkowski, Vladimir Katyshev, Roumen D. Balabanov, Andre Borisov, Paula Dore-Duffy

Wayne State University Associated BioMed Central Scholarship

Abstract

The French scientist Charles Benjamin Rouget identified the pericyte nearly 140 years ago. Since that time the role of the pericyte in vascular function has been difficult to elucidate. It was not until the development of techniques to isolate and culture pericytes that scientists have begun to understand the true impact of this unique cell in the maintenance of tissue homeostasis. In the brain the pericyte is an integral cellular component of the blood-brain barrier and, together with other cells of the neurovascular unit (endothelial cells, astrocytes and neurons) the pericyte makes fine-tuned regulatory adjustments and adaptations to promote …

Prevalence Of Thyroid Disorders Among Older People: Results From The São Paulo Ageing & Health Study, Paulo A. Lotufo

Paulo A Lotufo

This study aimed to estimate prevalence of thyroid disorders in the São Paulo Ageing & Health Study, an epidemiological study addressing several health-adverse outcomes among elderly people living in a poor area of São Paulo, Brazil. All participants answered a questionnaire and had a blood sample collected to assess levels of tireotropic hormone and free-thyroxine. Among 1,373 people (60.8% women), prevalence rates (95% confidence interval) for thyroid dysfunction (%) were: overt hyperthyroidism, 0.7% (0.2-1.1) [women: 0.8% (0.2-1.5); men: 0.4% (0.01-0.9)]; overt hypothyroidism, 5.7% (4.5-6.9) [women: 5.9% (4.3-7.5); men: 5.4% (3.5-7.3)]; subclinical hyperthyroidism, 2.4% (1.6-3.2) [women: 2.8% (1.6-3.9); men: 1.9% (0.7-3.0)]; …

The Effect Of Spiritualism On The Neuropsychological Function Of Memory, Carla Farcello

McNair Poster Presentations

The amount of physiological-neurological research performed over the past few years has dramatically increased due to our ability to view the structure and function of the brain in living human beings. The use of imaging tools has resulted in huge strides forward in unlocking some of the mysteries of the 3 pound universe-the human brain. One of the more unique neural processes being recently addressed is the affect of belief and spiritualism-the sense of being connected to something larger than oneself-on the human brain. This study hypothesized that better memory will be documented among the experimental group who report being …

The Neural Underpinnings Of Prosody In Autism, Inge-Marie Eigsti, Jillian Schuh, Einar Mencl, Robert T. Schultz, Rhea Paul

Communication Disorders Faculty Publications

This study examines the processing of prosodic cues to linguistic structure and to affect, drawing on fMRI and behavioral data from 16 high-functioning adolescents with autism spectrum disorders (ASD) and 11 typically developing controls. Stimuli were carefully matched on pitch, intensity, and duration, while varying systematically in conditions of affective prosody (angry versus neutral speech) and grammatical prosody (questions versus statement). To avoid conscious attention to prosody, which normalizes responses in young people with ASD, the implicit comprehension task directed attention to semantic aspects of the stimuli. Results showed that when perceiving prosodic cues, both affective and grammatical, activation of …

Disability, Depression And Disc Surgery: Lets Be Careful With The Evidence, Muhammad Shahzad Shamim

Section of Neurosurgery

No abstract provided.

What Modifiable Risk Factors Lead To Strokes In Our Part Of The World?, Maria Khan, Ayeesha Kamran Kamal

Department of Medicine

No abstract provided.

Associatioin Of Plasma Aβ Peptides With Blood Pressure In The Elderly, Jean-Charles Lambert, Jean Dallongeville, Kathryn A. Ellis, Susanna Schraen-Maschke, James Lui, Simon Laws, Julie Dumont, Florence Richard, Dominque Cottel, Claudine Berr, David Ames, Colin L. Masters, Christopher C. Rowe, Cassandra Szoeke, Christophe Tzourio, Jean-Francois Dartigues, Luc Buee, Ralph Martins, Philippe Amouyel

Research outputs 2011

Background Aß peptides are often considered as catabolic by-products of the amyloid ß protein precursor (APP), with unknown physiological functions. However, several biological properties have been tentatively attributed to these peptides, including a role in vasomotion. We assess whether plasma Aß peptide levels might be associated with systolic and diastolic blood pressure values (SBP and DBP, respectively). Methodology/Principal Findings Plasma Aß1-40 and Aß1-42 levels were measured using an xMAP-based assay in 1,972 individuals (none of whom were taking antihypertensive drugs) from 3 independent studies: the French population-based 3C and MONA-LISA (Lille) studies (n = 627 and n = 769, respectively) …

What Modifiable Risk Factors Lead To Strokes In Our Part Of The World, Maria Khan, Ayeesha Kamran Kamal

Section of Neurology

No abstract provided.

Epilepsy In The Older Adult, Timothy E. Welty, Marty L. Eng

Pharmacy Faculty Publications

No abstract provided.

Amyloid-Beta/Fyn–Induced Synaptic, Network, And Cognitive Impairments Depend On Tau Levels In Multiple Mouse Models Of Alzheimer’S Disease, Erik D. Roberson, Brian Halabisky, Jong W. Yoo, Jinghua Yao, Jeannie Chin, Fengrong Yan, Tiffany Wu, Patricia Hamto, Nino Devidze, Gui-Qiu Yu, Jorge J. Palop, Jeffrey L. Noebels, Lennart Mucke

Farber Institute for Neuroscience Faculty Papers

Alzheimer's disease (AD), the most common neurodegenerative disorder, is a growing public health problem and still lacks effective treatments. Recent evidence suggests that microtubule-associated protein tau may mediate amyloid-β peptide (Aβ) toxicity by modulating the tyrosine kinase Fyn.Weshowed previously that tau reduction prevents, and Fyn overexpression exacerbates, cognitive deficits in human amyloid precursor protein (hAPP) transgenic mice overexpressing Aβ. However, the mechanisms by which Aβ, tau, and Fyn cooperate in AD-related pathogenesis remain to be fully elucidated. Here we examined the synaptic and network effects of this pathogenic triad. Tau reduction prevented cognitive decline induced by synergistic effects of Aβ …

Predictors Of The Intracerebral Hemorrhage Volume In Hypertensive Patients, Mohammad Wasay, Adnan Yousuf, Darshan Lal, Safia Awan

Section of Neurology

Background: Hemorrhage volume is an important predictor of outcome in Patients with intracerebral hemorrhage (ICH). It is not clear why in some Patients ICH volume is larger than in others. Identification of modifiable factors responsible for large-volume hemorrhage in hypertensive Patients may help to reduce ICH-related morbidity and mortality. Objective: The objective of this study was to identify predictors of large-volume ICH in hypertensive Patients. Methods:At a tertiary care center in Karachi (Pakistan), 157 hypertensive Patients with ICH were prospectively analyzed in 2008-2009, and hemorrhage volumes were determined using CT or MRI and various factors, including duration of hypertension, …

Viewpoint: My Journey From The Us Back To Pakistan: What Keeps Me Here, Saad Shafqat

Section of Neurology

No abstract provided.

Mitochondria, Amyloid Β, And Alzheimer's Disease, Ryan Douglas Readnower, Andrew David Sauerbeck, Patrick G. Sullivan

Spinal Cord and Brain Injury Research Center Faculty Publications

Hypometabolism is a hallmark of Alzheimer's disease (AD) and implicates a mitochondrial role in the neuropathology associated with AD. Mitochondrial amyloid-beta (Aβ) accumulation precedes extracellular Aβ deposition. In addition to increasing oxidative stress, Aβ has been shown to directly inhibit mitochondrial enzymes. Inhibition of mitochondrial enzymes as a result of oxidative damage or Aβ interaction perpetuates oxidative stress and leads to a hypometabolic state. Additionally, Aβ has also been shown to interact with cyclophilin D, a component of the mitochondrial permeability transition pore, which may promote cell death. Therefore, ample evidence exists indicating that …

Histogram Analysis Of Adc In Brain Tumor Patients, Debrup Banerjee, Jihong Wang, Jiang Li, Norbert J. Pelc (Ed.), Ehsan Samei (Ed.), Robert M. Nishikawa (Ed.)

Electrical & Computer Engineering Faculty Publications

At various stage of progression, most brain tumors are not homogenous. In this presentation, we retrospectively studied the distribution of ADC values inside tumor volume during the course of tumor treatment and progression for a selective group of patients who underwent an anti-VEGF trial. Complete MRI studies were obtained for this selected group of patients including pre- and multiple follow-up, post-treatment imaging studies. In each MRI imaging study, multiple scan series were obtained as a standard protocol which includes T1, T2, T1-post contrast, FLAIR and DTI derived images (ADC, FA etc.) for each visit. All scan series (T1, T2, FLAIR, …

Prediction Of Brain Tumor Progression Using Multiple Histogram Matched Mri Scans, Debrup Banerjee, Loc Tran, Jiang Li, Yuzhong Shen, Frederic Mckenzie, Jihong Wang, Ronald M. Summers (Ed.), Bram Van Ginneken (Ed.)

Electrical & Computer Engineering Faculty Publications

In a recent study [1], we investigated the feasibility of predicting brain tumor progression based on multiple MRI series and we tested our methods on seven patients' MRI images scanned at three consecutive visits A, B and C. Experimental results showed that it is feasible to predict tumor progression from visit A to visit C using a model trained by the information from visit A to visit B. However, the trained model failed when we tried to predict tumor progression from visit B to visit C, though it is clinically more important. Upon a closer look at the MRI scans …

Eeg Artifact Removal Using A Wavelet Neural Network, Hoang-Anh T. Nguyen, John Musson, Jiang Li, Frederick Mckenzie, Guangfan Zhang, Roger Xu, Carl Richey, Tom Schnell, Thomas E. Pinelli (Ed.)

Electrical & Computer Engineering Faculty Publications

In this paper we developed a wavelet neural network. (WNN) algorithm for Electroencephalogram (EEG) artifact removal without electrooculographic (EOG) recordings. The algorithm combines the universal approximation characteristics of neural network and the time/frequency property of wavelet. We compared the WNN algorithm with the ICA technique and a wavelet thresholding method, which was realized by using the Stein's unbiased risk estimate (SURE) with an adaptive gradient-based optimal threshold. Experimental results on a driving test data set show that WNN can remove EEG artifacts effectively without diminishing useful EEG information even for very noisy data.

Organized Outpatient Stroke Care, Gustavo Saposnik

Gustavo Saposnik

Background and Purpose—Organized inpatient stroke care decreases mortality and morbidity irrespective of patient age, stroke severity, or stroke subtype. Limited information is available on whether organized outpatient care models such as stroke prevention clinics (SPC) improve outcomes after a transient ischemic attack or ischemic stroke. We compared 1-year mortality and stroke readmission in patients with transient ischemic attack or ischemic stroke referred versus not referred to an SPC. Methods—This was a retrospective cohort study including 16 468 consecutive patients with ischemic stroke or transient ischemic attack who were seen in the emergency department or admitted to a hospital between July …