Nervous System Diseases Commons^™

Nuclear Activities And Interactome Of The Ns5 Protein Of Tick-Borne Encephalitis Virus, Maxime Chazal, Aïssatou Aïcha Sow, Elodie Le Seac'h, Dana Hawasheen, Margarida Bonifacio, Mikael Feracci, Ségolène Gracias, Adrià Sogues, Melissa Molho, Heng Pan, Boris Bonaventure, Jean-Pierre Quivy, Geneviève Almouzni, Etienne Decroly, Holly Ramage, Jeffrey R. Johnson, Vincent Caval, Nolwenn Jouvenet

Department of Microbiology and Immunology Faculty Papers

Orthoflaviviruses are RNA viruses responsible for significant diseases in humans, domesticated animals, and wildlife. Their NS5 protein is central in viral replication, functioning both as an RNA-dependent RNA polymerase and a methyltransferase, while also modulating cellular processes, including the interferon response. Although viral replication is cytoplasmic, the NS5 protein of several mosquito-borne orthoflaviviruses cycles between the cytoplasm and the nucleus of infected human cells. However, the nuclear localization and function of NS5 of tick-borne orthoflaviviruses, such as tick-borne encephalitis virus (TBEV), remain poorly understood. Microscopy analysis and cell fractionation revealed that the NS5 protein of TBEV localized to both the …

Unusual Etiology Of Cauda Equina Syndrome In An Aids Patient: A Case Report, Wesley Augustus Kim, Brandon Velazquez

Rowan-Virtua Research Day

Patients with advanced HIV/AIDS are at high risk for primary central nervous system (CNS) lymphoma due to impaired immune surveillance and HIV-driven B-cell proliferation. While intracranial lesions are well recognized, spinal involvement remains underrecognized due to the scarcity of well documented report cases in current literature. In this patient,we describe the case of a 35-year-old male with a new HIV diagnosis who experienced acute bilateral lower extremity weakness and urinary retention during hospitalization for fever, perianal abscess, and urinary tract infection. Initial CD4 count revealed profound immunosuppression with a CD4 count less than 20 cells/μL and a viral load of …

An Unusual Brain Invader: A Case Of Adult Viral Meningitis, Gregory Williams, Jonathan Barnett

Central & West Texas and San Antonio GME Research Day 2026

No abstract provided.

Disseminated Mycobacterium Avium Complex (Mac) Infection Presenting With Mycotic Aneurysm And Multisystem Involvement In A Patient With Newly Diagnosed Acquired Immunodeficiency Syndrome (Aids), Hannah Rector, Michael Haddad, Dmitriy Scherbak

Continental and Mountain Divisions GME Resarch Day 2026

No abstract provided.

Neurosyphilis With Albuminocytologic Dissociation And Discordant Serology In Controlled Hiv Infection, Nikita Zanko, Kyle Tracy, Dmitriy Scherbak

Continental and Mountain Divisions GME Resarch Day 2026

No abstract provided.

Influenza A Precipitation Of Motor Dysfunction In Dandy-Walker Variant: A Case Of Viral-Induced Spasticity, Scott Scher, Joseph Johnson, Alex Bandea, Tyler Otto, Zarina Marie Guevarra Balde, Abbie John, Carlos Cano

West Florida Division GME Research Day 2026

No abstract provided.

Beyond The Temporal Lobe: Atypical Presentation In Adult Hsv-2 Encephalitis, Analekha Chesnick, Michaela Littlefield, Brock Cardon

Continental and Mountain Divisions GME Resarch Day 2026

No abstract provided.

West Nile Encephalitis Complicated By Urinary Retention, Morgan Reich, Sabra Rahme, Mattie Brand, Jordan Conley

Continental and Mountain Divisions GME Resarch Day 2026

No abstract provided.

When A Rare Neuromuscular Disorder Meets Covid-19: A Challenging Case Of Myotonic Dystrophy In The Intensive Care Unit, Pradeep Rajbhandari, Lawrence San Jose, Michael Waxman

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Herpes Simplex Virus Type 2 Meningitis: Clinical Presentation And Treatment, Madison Huff, Olivia Thomas, Payton Williams, Minh Chung

South Atlantic Division GME Research Days 2026

No abstract provided.

A Curious Case Of Confusion During A Hot Lowcountry July, Christopher D. Louviere, Param P. Patel, Morgan E. Wright

South Atlantic Division GME Research Days 2026

No abstract provided.

West Nile Virus Encephalitis With Associated Opsoclonus-Myoclonus Syndrome, Caitlyn Brown, Tilak Patel, Amanda Westbrook

South Atlantic Division GME Research Days 2026

No abstract provided.

Covid-19 And Related Adverse Neurological Complications, Hannah A. Wasson

Honors Thesis

Abstract

The COVID-19 pandemic changed the world drastically, and its impact was monumental. COVID-19 or SARS-CoV-2, or severe acute respiratory syndrome, was the virus responsible for causing such mayhem. This contagious virus can enter the body via different routes, live on surfaces for hours, and be transmitted through the air, increasing infection risk. Once it enters the body, it can trick the body into replicating the virus. From this reaction within the body, signs and symptoms follow. While the name indicates a respiratory illness, the virus can inflict injury on other parts of the body. Due to the organ systems …

Progressive Multifocal Leukoencephalopathy (Pml) Induced By Jc Virus: A Case Report And Review Of Clinical Implications, Hugo Zamarron, Roberto Cruz

Research Symposium

Background: Progressive multifocal leukoencephalopathy (PML) is a rare but serious demyelinating disease of the central nervous system, caused by the John Cunningham (JC) virus. While the JC virus is common in the general population, it remains dormant in healthy individuals but can reactivate in immunocompromised patients, particularly those with HIV/AIDS or undergoing immunosuppressive treatments for organ transplants or autoimmune conditions. The virus attacks oligodendrocytes, leading to demyelination and significant neurological deficits. Immunosuppressive therapies such as natalizumab, rituximab, and mycophenolate increase the risk of PML. Diagnosing PML is challenging as its symptoms—focal neurological deficits, sensory-motor issues, and visual disturbances—overlap with conditions …

Exploring The Link Between Covid-19 And Transverse Myelitis: A Case Report, Sara Sanghera, Trivianne Franklin, Veeranna Vibhuti, Danielle Ford

North Texas Research Forum 2025

Transverse myelitis (TM) is a rare inflammatory syndrome of the spinal cord that is often attributed to immune-mediated responses which lead to demyelination and the resultant varying degrees of motor, sensory, and autonomic dysfunction. While COVID-19 virus itself is known to present with anosmia, ageusia and Guillian Barre syndrome, a few rare cases of COVID-virus related TM have been reported. This case presents a 61-year-old female experiencing bilateral lower extremity weakness with brisk to absent reflexes. Onset of the symptoms was of 3 days origin, and she was tested positive for COVID-19. Patient did not have upper extremity symptoms but …

Concomitant Diagnoses Of Lymphoma And Pml In An Hiv-Positive Patient, Madelaine Duarte, Delon Altherr, Mohamed Faris

South Atlantic Division GME Research Day 2025

No abstract provided.

Lower Extremity Weakness In The Setting Of Covid Myositis, Christopher Dellmyer, Frank Wheeler

Rowan-Virtua Research Day

Bilateral lower extremity weakness has numerable causes including stroke, peripheral neuropathy, deconditioning, Guillain-Barre, Multiple Sclerosis, anterior cord syndrome, trauma, spinal epidural abscess and many more. It is imperative however, that we investigate and understand more rare causes of lower extremity weakness. Here we present the case of a 74-year-old female presented to the ED with a complaint of lower extremity weakness due to Covid myositis causing significant bilateral lower extremity weakness.

A Case Of Hhv-6 Viral Meningitis, Mohammad A. Rattu, Wayne Tamaska

Rowan-Virtua Research Day

Meningitis is the inflammation of the meninges and associated with abnormal cell count in the cerebrospinal fluid (CSF). The lack of bacterial growth in cultures, most commonly referred to as aseptic meningitis, is frequently caused by viruses [2]. Viruses have become more common as the prevalence of bacterial meningitis has decreased secondary to vaccination use, with viral meningitis being the most common form among countries. Viral meningitis will present with fever, headache, photophobia, neck stiffness and nausea and vomiting. Younger children however may not show any signs of meningeal irritation. Viral meningitis is usually self-limiting and with good prognosis; however, …

Moving On Up: A Case Study Of Hiv And Covid-Induced Guillain-Barre Syndrome, Victoria Wong Murray, Rebecca Chae, Isobel Moyer, Cindy Hou

Rowan-Virtua Research Day

COVID and HIV are both common diseases, with COVID affecting an estimated 775 million and HIV affecting 39 million people worldwide. Guillain-Barre is a rare but feared complication of immune stimulation in which the body generates autoantibodies against gangliosides, found in the nodes of Ranvier, in the myelin, and in the ganglia; causing ascending paralysis.

A mid-30s man with HIV maintained on Genvoya presented to the Jefferson Health New Jersey Early Intervention Program clinic with fatigue, fever, cough, and congestion and tested positive for SARS-CoV-2 on the following day. Two weeks later, he presented to the emergency department complaining of …

Pediatric Neurotropic Infection Alters Synaptic Development In The Developing Brain, Anuoluwapo Grace Fadare, Yashika S. Kamte, Manish N. Chandwani, Lauren A. O'Donnell

Rowan-Virtua Research Day

Many neurotropic viruses cause more significant pathology in younger hosts as their brains are still developing. This experiment asked how central nervous system (CNS) viral-infections affect the development of synapses in the pediatric brain during infection and post-infection. Synaptogenesis is at its peak in pediatric mice (10 days old) and we hypothesized that a neurotropic infection could disrupt synaptic proteins. We used a transgenic mouse model where measles virus (MV) infects only mature neurons, leading us to question whether synapses were impacted. We examined synaptic markers in the cerebellum and hippocampus in MV-infected and uninfected mice 9 days and 90 …

‘Not So Atypical’: An Atypical Presentation Of West Nile Virus And Guillain-Barre Syndrome, Matthew Orap, Sana Tahir, Ugonna Ononuju, Naresh Kumar

Rowan-Virtua Research Day

Guillain-Barre Syndrome (GBS) is defined by acute areflexic paralysis, usually starting in the distal lower extremities, and ascending to the upper extremities. It is associated with albuminocytologic dissociation, which involves elevated protein levels and normal cell counts in the cerebrospinal fluid. One of the types of GBS, called Miller-Fischer Syndrome (MFS), is characterized by ophthalmoplegia, ataxia, and areflexia. This case report focuses on a 49-year-old male with an atypical presentation of Guillain-Barre syndrome. Guillain-Barre syndrome can be classically caused by Campylobacter jejuni. However, there can be other infectious causes as well, namely Cytomegalovirus, Epstein-Barr virus, Varicella-Zoster virus, …

Case Report: Varicella Zoster Virus Encephalitis Presenting With Monochorea, Chetna Thawani, Frank Wheeler

Rowan-Virtua Research Day

Meningoencephalitis is a broad range of symptoms as a sequela of inflammation of the CNS system. It is a diagnosis that is often missed, especially in atypical presentations. We describe a case of HSV encephalitis that presented to the ER afebrile with atypical arm movements, most similar to a monochorea, and discuss other cases in the literature of atypical presentations of this disease.

Ascending Paralysis: A Case Of West Nile Virus, Samantha Rudy, Claire Levinson, Lauren Gilbert, Michaela Snow, Robyn Kramer

Continental, MidAmerica, & Mountain Divisions GME Research Day 2024

No abstract provided.

A Stroke Of Fate: Overcoming Varicella Encephalitis’S Unexpected Consequences, Karissa Charles, Sean Gibbs

South Atlantic Division GME Research Day 2024

No abstract provided.

Transverse Myelitis Secondary To Herpes Simplex 2 Virus: A Case Report, Karla Arredondo

East Florida Division GME Research Day 2024

No abstract provided.

Two Cases Of West Nile Virus Encephalitis In The Icu, Arthur J. Armijo, Carl Smearman, Bhavesh Shukla, Ryan Spilman

Continental, MidAmerica, & Mountain Divisions GME Research Day 2024

No abstract provided.

Mycophenolate Associated Progressive Multifocal Leukoencephalopathy In A Woman With Systemic Lupus Erythematosus, Zaur Komachkov, Yacoub Khatab

Gulf Coast Division GME Research Symposium 2024

No abstract provided.

Characterizing The Cellular Response To Astrovirus Infection In The Central Nervous System, Amy E. Davis

Theses and Dissertations (ETD)

Central nervous system (CNS) diseases caused by infectious agents pose significant health challenges, often leading to severe neurological dysfunction with high morbidity and mortality rates. Astroviruses (AstVs), traditionally known for causing gastroenteritis, have recently been identified as neuroinvasive pathogens capable of inducing neurological diseases. This study explores the cellular and molecular mechanisms by which AstV, specifically non-classical VA1 and classical HAstV1 genotypes, induce CNS pathology in human neurons and astrocytes. Utilizing primary human neurons and astrocytes from various brain regions, this research investigates the cytotoxic effects, apoptotic pathways, and inflammatory responses triggered by these viruses. This study reveals that VA1 …

Without A Rash! A Diagnostic Dilemma For Vzv Vasculopathy, Paulina Vega Enriquez, Jose E. Campo Maldonado

Research Symposium

Varicella zoster virus vasculopathy is a condition that can classically present with a dermatomal zoster rash followed by a neurological deficit. The possible neurological manifestations and disease range are extensive. Diagnosis becomes more challenging in patients whose presentation does not include a rash, often causing cognitive errors and delay in treatment. We present a case of an 85-year-old patient, who developed stroke-like symptoms, initially with normal MRI, to later progress to multiple evolving enhancing lesions seen in subsequent MRIs. This case also represents the anchoring, that we as physicians can have when a patient with risk factors for stroke or …

An Interesting Occurrence Of Bell’S Palsy With Atypical Presentation After Contracting Covid-19 Infection, Yen-Chung Wang, Yen-Hsiang Wang, Christian Sanchez

North Texas GME Research Forum 2023

Introduction: COVID-19 has been identified as primarily a respiratory illness, however, with its clinical manifestation of involvement with multiple organs, it is now considered a systemic illness. In particular, it also can elicit a broad spectrum of neurological symptoms. One of the proposed manifestations is Bell’s Palsy, an acute idiopathic facial nerve palsy that affects the lower motor neuron. Here we have a patient with recent COVID infection who presents with a unilateral facial droop along with unilateral weakness/tingling of extremities and was diagnosed with Bell’s Palsy.

Case Description: Patient is a 47-year-old male with a past medical history of …