Efficacy And Safety Of Ozanimod In Multiple Sclerosis: Dose-Blinded Extension Of A Randomized Phase Ii Study, J. A. Cohen, G. Comi, D. L. Arnold, A. Bar-Or, K. W. Selmaj, L. Steinman, E. K. Havrdová, B. A. Cree, B. E. Skolnick, L. Kappos, +4 Additional Authors

Journal Articles

© The Author(s), 2018. Background: Ozanimod, an oral immunomodulator, selectively targets sphingosine 1-phosphate receptors 1 and 5. Objective: Evaluate efficacy, safety, and tolerability of ozanimod in relapsing multiple sclerosis. Methods: In the RADIANCE Part A phase II study (NCT01628393), participants with relapsing multiple sclerosis were randomized (1:1:1) to once-daily ozanimod hydrochloride (0.5 or 1 mg) or placebo. After 24 weeks, participants could enter a 2-year, dose-blinded extension. Ozanimod-treated participants continued their assigned dose; placebo participants were re-randomized (1:1) to ozanimod hydrochloride 0.5 or 1 mg (equivalent to ozanimod 0.46 and 0.92 mg). Results: A total of 223 (89.6%) of the …

Acute Levodopa Dosing Around-The-Clock Ameliorates Rem Sleep Without Atonia In Hemiparkinsonian Rats, Vishakh Iyer, Quynh Vo, Anthony Mell, Siven Chinniah, Ashley Zenerovitz, Kala Venkiteswaran, Allen R. Kunselman, Jidong Fang, Thyagarajan Subramanian

Faculty & Staff Scholarship

• Article
• Open Access
• Published: 29 November 2019

Acute levodopa dosing around-the-clock ameliorates REM sleep without atonia in hemiparkinsonian rats

• Vishakh Iyer,
• Quynh Vo,
• Anthony Mell,
• Siven Chinniah,
• Ashley Zenerovitz,
• Kala Venkiteswaran,
• Allen R. Kunselman,
• Jidong Fang &
• Thyagarajan Subramanian

npj Parkinson's Disease volume 5, Article number: 27 (2019) Cite this article

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Abstract

Rapid-eye-movement (REM) sleep without atonia (RSWA), a marker of REM sleep behavior disorder (RBD), is frequently comorbid with Parkinson’s disease (PD). Although rodent models are commonly used for studying PD, the neurobiological and behavioral correlates of …

Increased Dementia Mortality In West Virginia Counties With Mountaintop Removal Mining?, A. K. Salm, Michael J. Benson

Faculty & Staff Scholarship

(MTM), a practice that has been ongoing in some counties of West Virginia (WV) USA since the 1970s. PM inhalation has been linked to central nervous system pathophysiology, including cognitive decline and dementia. Here we compared county dementia mortality statistics in MTM vs. non-MTM WV counties over a period spanning 2001–2015. We found significantly elevated age-adjusted vascular or unspecified dementia mortality/100,000 population in WV MTM counties where, after adjusting for socioeconomic variables, dementia mortality was 15.60 (±3.14 Standard Error of the Mean (S.E.M.)) times higher than that of non-MTM counties. Further analyses with satellite imaging data revealed a highly significant …

Venous Manometry As An Adjunct For Diagnosis And Multimodal Management Of Intracranial Hypertension Due To Meningioma Compressing Sigmoid Sinus, Cletus Cheyuo, Charles L. Rosen, Ansaar Rai, Christopher P. Cifarelli, Rabia Qaiser

Faculty & Staff Scholarship

Intracranial venous hypertension is a rare presentation of meningiomas in the transversesigmoid sinus region. We describe a case of a young patient presenting with intracranial hypertension due to a meningioma causing compression of the dominant sigmoid sinus. We were able to document the cerebral venous pressure gradient across the lesion confirming our hypothesis that compression of the sigmoid sinus from the meningioma was the cause of intracranial hypertension. The patient is a 17-year-old male who presented with intracranial hypertension due to meningioma at the right dominant sigmoid sinus, which was treated by a Simpson grade IV surgical resection followed by …

Molecular Mechanisms Of Cancer-Induced Sleep Disruption, William H. Walker, Jeremy C. Borniger

Faculty & Staff Scholarship

Sleep is essential for health. Indeed, poor sleep is consistently linked to the development of systemic disease, including depression, metabolic syndrome, and cognitive impairments. Further evidence has accumulated suggesting the role of sleep in cancer initiation and progression (primarily breast cancer). Indeed, patients with cancer and cancer survivors frequently experience poor sleep, manifesting as insomnia, circadian misalignment, hypersomnia, somnolence syndrome, hot flushes, and nightmares. These problems are associated with a reduction in the patients’ quality of life and increased mortality. Due to the heterogeneity among cancers, treatment regimens, patient populations and lifestyle factors, the etiology of cancer-induced sleep disruption is …

Global Climate Change And Invariable Photoperiods: A Mismatch That Jeopardizes Animal Fitness, William H. Walker Ii, Olga Hecmarie Meléndez‐Fernández, Randy J. Nelson, Russel J. Reiter

Faculty & Staff Scholarship

The Earth's surface temperature is rising, and precipitation patterns throughout the Earth are changing; the source of these shifts is likely anthropogenic in nature. Alterations in temperature and precipitation have obvious direct and indirect ef‐ fects on both plants and animals. Notably, changes in temperature and precipita‐ tion alone can have both advantageous and detrimental consequences depending on the species. Typically, production of offspring is timed to coincide with optimal food availability; thus, individuals of many species display annual rhythms of reproductive function. Because it requires substantial time to establish or re‐establish reproduc‐ tive function, individuals cannot depend on the …

Editorial: Recent Advances In Psychiatry From Psycho-Neuro-Immunology Research: Autoimmune Encephalitis, Autoimmune Encephalopathy, And Mild Encephalitis, K. Bechter, D. Brown, S. Najjar

Journal Articles

No abstract provided.

Consensus Statement From The International Consensus Meeting On The Role Of Decompressive Craniectomy In The Management Of Traumatic Brain Injury: Consensus Statement, P. J. Hutchinson, A. G. Kolias, T. Tajsic, A. Adeleye, A. T. Aklilu, T. Apriawan, A. H. Bajamal, E. J. Barthelemy, J. S. Ullman, F. Servadei, +41 Additional Authors

Journal Articles

No abstract provided.

Noninvasive Sub-Organ Ultrasound Stimulation For Targeted Neuromodulation, V. Cotero, Y. Fan, T. Tsaava, A. M. Kressel, I. Hancu, T. R. Coleman, S. Zanos, K. J. Tracey, S. S. Chavan, C. Puleo, +10 Additional Authors

Journal Articles

© 2019, The Author(s). Tools for noninvasively modulating neural signaling in peripheral organs will advance the study of nerves and their effect on homeostasis and disease. Herein, we demonstrate a noninvasive method to modulate specific signaling pathways within organs using ultrasound (U/S). U/S is first applied to spleen to modulate the cholinergic anti-inflammatory pathway (CAP), and US stimulation is shown to reduce cytokine response to endotoxin to the same levels as implant-based vagus nerve stimulation (VNS). Next, hepatic U/S stimulation is shown to modulate pathways that regulate blood glucose and is as effective as VNS in suppressing the hyperglycemic effect …

Inhibition Of Hmgb1/Rage-Mediated Endocytosis By Hmgb1 Antagonist Box A, Anti-Hmgb1 Antibodies, And Cholinergic Agonists Suppresses Inflammation, H. Yang, H. Liu, Q. Zeng, G. H. Imperato, M. E. Addorisio, M. He, K. F. Cheng, Y. Al-Abed, S. S. Chavan, K. J. Tracey, +3 Additional Authors

Journal Articles

No abstract provided.

Towards Reconstructing Intelligible Speech From The Human Auditory Cortex, H. Akbari, B. Khalighinejad, J. L. Herrero, A. D. Mehta, N. Mesgarani

Journal Articles

No abstract provided.

Depression Among Epileptic Patients And Its Association With Drug Therapy In Sub-Saharan Africa: A Systematic Review And Meta-Analysis., Getenet Dessie, Henok Mulugeta, Cheru Tesema Leshargie, Fasil Wagnew, Sahai Burrowes

BACKGROUND: Despite the high prevalence of epilepsy in sub-Saharan Africa and the established relationship between depression and epilepsy, the extent of comorbid epilepsy and depression in the region is still poorly understood. The objective of this systematic review and meta-analysis is to address this gap in the literature by determining the pooled prevalence of depression among epileptic patients in sub-Saharan Africa.

METHODS: A systematic desk review and electronic web-based search of PubMed, Google Scholar, EMBASE, PsycINFO and the World Health Organization's Hinari portal (which includes the SCOPUS, African Index Medicus, and African Journals Online databases) conducted from December 2, 2017 …

Altered Dynamics Of Visual Contextual Interactions In Parkinson's Disease., M. I. Vanegas, A. Blangero, J. E. Galvin, A. Di Rocco, A. Quartarone, M. F. Ghilardi, S. P. Kelly

Journal Articles

Over the last decades, psychophysical and electrophysiological studies in patients and animal models of Parkinson's disease (PD), have consistently revealed a number of visual abnormalities. In particular, specific alterations of contrast sensitivity curves, electroretinogram (ERG), and visual-evoked potentials (VEP), have been attributed to dopaminergic retinal depletion. However, fundamental mechanisms of cortical visual processing, such as normalization or "gain control" computations, have not yet been examined in PD patients. Here, we measured electrophysiological indices of gain control in both space (surround suppression) and time (sensory adaptation) in PD patients based on steady-state VEP (ssVEP). Compared with controls, patients exhibited a significantly …

Ieeg-Bids, Extending The Brain Imaging Data Structure Specification To Human Intracranial Electrophysiology, C. Holdgraf, S. Appelhoff, S. Bickel, K. Bouchard, S. D'Ambrosio, O. David, O. Devinsky, B. Dichter, A. Flinker, D. Hermes, +29 Additional Authors

Journal Articles

No abstract provided.

Sequencing And Curation Strategies For Identifying Candidate Glioblastoma Treatments, M. O. Frank, T. Koyama, K. Rhrissorrakrai, N. Robine, F. Utro, A. Emde, B. Chen, J. Boockvar, A. Demopoulos, R. B. Darnell, +39 Additional Authors

Journal Articles

No abstract provided.

Deep Brain Stimulation: Current Challenges And Future Directions, A. M. Lozano, N. Lipsman, H. Bergman, P. Brown, S. Chabardes, J. W. Chang, K. Matthews, C. C. Mcintyre, M. Schulder, J. K. Krauss, +3 Additional Authors

Journal Articles

No abstract provided.

An Effective Method For Acute Vagus Nerve Stimulation In Experimental Inflammation, A. S. Caravaca, A. L. Gallina, L. Tarnawski, K. J. Tracey, V. A. Pavlov, Y. A. Levine, P. S. Olofsson

Journal Articles

© 2019 Caravaca, Gallina, Tarnawski, Tracey, Pavlov, Levine and Olofsson. Neural reflexes regulate inflammation and electrical activation of the vagus nerve reduces inflammation in models of inflammatory disease. These discoveries have generated an increasing interest in targeted neurostimulation as treatment for chronic inflammatory diseases. Data from the first clinical trials that use vagus nerve stimulation (VNS) in treatment of rheumatoid arthritis and Crohn’s disease suggest that there is a therapeutic potential of electrical VNS in diseases characterized by excessive inflammation. Accordingly, there is an interest to further explore the molecular mechanisms and therapeutic potential of electrical VNS in a range …

Spectrotemporal Modulation Provides A Unifying Framework For Auditory Cortical Asymmetries, A. Flinker, W. K. Doyle, A. D. Mehta, O. Devinsky, D. Poeppel

Journal Articles

No abstract provided.

Neurogenesis In Neurodegenerative Diseases: Role Of Mfg-E8, Cletus Cheyuo, Monowar Aziz, Ping Wang

Faculty & Staff Scholarship

Neurodegenerative diseases are devastating medical conditions with no effective treatments. Restoration of impaired neurogenesis represents a promising therapeutic strategy for neurodegenerative diseases. Milk fat globule-epidermal growth factor-factor VIII (MFG-E8) is a secretory glycoprotein that plays a wide range of cellular functions including phagocytosis of apoptotic cells, anti-inflammation, tissue regeneration, and homeostasis. The beneficial role of MFG-E8 has been shown in cerebral ischemia (stroke), neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease, and traumatic brain injury. In stroke, MFG-E8 promotes neural stem cell proliferation and their migration toward the ischemic brain tissues. These novel functions of MFG-E8 are primarily mediated …

The Risk Of New-Onset Epilepsy And Refractory Epilepsy In Older Adult Stroke Survivors, Jorge G. Burneo, Tresah C. Antaya, Britney N. Allen, Andrea Belisle, Salimah Z. Shariff, Gustavo Saposnik

Neuroepidemiology Research Unit Project Summaries

Research Summary: Key Findings

• Stroke is a common cause of epilepsy in older adults, but little is known about stroke-related epilepsy or its outcomes in this population.
• 1.1% of older adult stroke survivors developed epilepsy in this study, of whom 12.9% developed refractory epilepsy, indicating that this population is particularly responsive to treatment.
• Over 85% of deaths in this population are not due to stroke or epilepsy.

Follow-Up Bibliometric Analysis Of Neurosurgical Publications From Pakistan And Institutional Comparison With Other Countries Using H-Index And I-10 Index, Muhammad Waqas Saeed Baqai, Usman Tariq Siddique, Muhammad Shahzad Shamim

Section of Neurosurgery

Aim: The aim of the study was to analyze the neurosurgical research output of Pakistan and compare it with that of developed countries.
Methodology: We conducted a bibliometric analysis of publically available databases for all neurosurgical publications from Pakistan. All indexed peer-reviewed publications from January 2009 to December 2014 where at least one author was affiliated with any neurosurgical departments in Pakistan and research was conducted in Pakistan were selected. Manual and electronic search was done using MeSH terms to search for articles from Pakistan. Articles were then categorized according to design, subspecialty, region, and year.
Results: Our search identified …

The Effects Of Matrix Metalloproteinase-9 On Cx3cl1 Shedding And Axon Retraction, Lauren A. Dobrie

Honors Undergraduate Theses

Spinal cord injury (SCI) often leads to irreversible damage, and permanent paralysis inferior to the injury is common (Leibinger et al., 2013). Injury to the spinal cord occurs in two phases. In the first phase, components of the spinal cord are subject to mechanical trauma causing direct damage. In the second phase, damage spreads from the area of injury through molecular processes. Several studies have linked M1 "pro-inflammatory" macrophages to exacerbation of damage by inducing dieback of dystrophic axons, but not healthy axons, through direct cellular contact. Several studies have identified the presence of macrophage subtypes at specific time. A …

Role Of Amyloid Precursor Protein In Neuroregeneration On An In Vitro Model In Alzheimer's Patient-Specific Cell Lines, Lina S. Bedoya Martinez

Honors Undergraduate Theses

Alzheimer's disease (AD) leads to neurodegeneration resulting in cognitive and physical impairments. AD is denoted by accumulation of intracellular neurofibrillary tangles, known as tau, and extracellular plaques of the amyloid beta protein (Aβ). Aβ results from the proteolytic cleavage of the amyloid precursor protein (APP) by β- and gamma-secretases in the amyloidogenic pathway. Although, Aβ has been widely studied for neurodegeneration, the role of APP in both, the healthy and diseased conditions, has not yet been entirely understood. The function that APP has in neural stem cell (NSC) proliferation, differentiation, and migration during adult neurogenesis has been previously studied. Additionally, …

Single-Cell Glia And Neuron Gene Expression In The Central Amygdala In Opioid Withdrawal Suggests Inflammation With Correlated Gut Dysbiosis., Sean J O'Sullivan, Evangelia Malahias, James Park, Ankita Srivastava, Beverly A S Reyes, Jon Gorky, Rajanikanth Vadigepalli, Elisabeth J Van Bockstaele, James S Schwaber

Articles, Abstracts, and Reports

Drug-seeking in opioid dependence is due in part to the severe negative emotion associated with the withdrawal syndrome. It is well-established that negative emotional states emerge from activity in the amygdala. More recently, gut microflora have been shown to contribute substantially to such emotions. We measured gene expression in single glia and neurons gathered from the amygdala using laser capture microdissection and simultaneously measured gut microflora in morphine-dependent and withdrawn rats to investigate drivers of negative emotion in opioid withdrawal. We found that neuroinflammatory genes, notably

Pre-Operative Voriconazole In Patients Undergoing Surgery For Central Nervous System Fungal Infections: Special Report, Ghani Haider, Muhammad Shahzad Shamim, Muhammad Faheem Khan, Muhammad Ehsan Bari, Ather Enam

Section of Neurosurgery

Fungal infections of the central nervous system (CNS) are uncommon. Despite several advancements in diagnosis and treatment of these infections, the mortality rates remain high. The current retrospective study was planned to define the demographic and clinical features of patients with CNS fungal infections. Conducted at Aga Khan University Hospital, Karachi, and comprising CNS fungal infections operated between January 2000 and December 2015. The study analysed whether a short course of pre-operative anti-fungal therapy may improve outcomes in these patients. There were 47 cases confirmed on histopathology and/or microbiology. Outcome measures used were Glasgow coma score (GCS), Glasgow outcome score …

Characterizing Whole Brain Temporal Variation Of Functional Connectivity Via Zero And First Order Derivatives Of Sliding Window Correlations., Flor A Espinoza, Victor M Vergara, Eswar Damaraju, Kyle G Henke, Ashkan Faghiri, Jessica A Turner, Aysenil A Belger, Judith M Ford, Sarah C Mcewen, Daniel H Mathalon, Bryon A Mueller, Steven G Potkin, Adrian Preda, Jatin G Vaidya, Theo G M Van Erp, Vince D Calhoun

Articles, Abstracts, and Reports

Brain functional connectivity has been shown to change over time during resting state fMRI experiments. Close examination of temporal changes have revealed a small set of whole-brain connectivity patterns called dynamic states. Dynamic functional network connectivity (dFNC) studies have demonstrated that it is possible to replicate the dynamic states across several resting state experiments. However, estimation of states and their temporal dynamicity still suffers from noisy and imperfect estimations. In regular dFNC implementations, states are estimated by comparing connectivity patterns through the data without considering time, in other words only zero order changes are examined. In this work we propose …

Are There Mortality Risks For Patients With Epilepsy Who Use Cannabis Treatments As Monotherapy?, Devon M Kollmyer, Kyla E Wright, Nicole M Warner, Michael J Doherty

Articles, Abstracts, and Reports

Mortality associated with cannabis used for treatment of epilepsy is not well documented. We discuss two fatalities in the setting of epilepsy and self-determined therapy with cannabis (SDTC). One patient had probable sudden unexpected death in epilepsy, the second death was due to seizure-associated drowning. Both directed SDTC over conventional anti-seizure medications. Where recreational cannabis is legal, decisions to use cannabis are often self-directed and independent of physician advice of cannabis risks, in part because physicians may not be aware of the risk of SDTC. Further study of morbidity and mortality of SDTC in patients with epilepsy is needed.

How Might Tissue Glucose Influence Responsive Neurostimulation Detection?, Kyla E Wright, Devon M Kollmyer, Nicole M Warner, Alan M Haltiner, Ryder P Gwinn, Michael J Doherty

Articles, Abstracts, and Reports

No abstract provided.

An Inflammatory Landscape For Preoperative Neurologic Deficits In Glioblastoma., Amal Katrib, Hyun-Hwan Jeong, Nina L Fransen, Kristin S Henzel, Jeremy A Miller

Articles, Abstracts, and Reports

No abstract provided.

Difficult Conversations., Alison Christy

Articles, Abstracts, and Reports

No abstract provided.