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Full-Text Articles in Medical Specialties

Acute Ischemic Stroke Treatment Barriers In Pakistan, Saima Ahmad, Umair Rashid, Ossama Mansour, Sohail Akhtar Dec 2020

Acute Ischemic Stroke Treatment Barriers In Pakistan, Saima Ahmad, Umair Rashid, Ossama Mansour, Sohail Akhtar

Pakistan Journal of Neurological Sciences (PJNS)

Worldwide stroke is the second most common cause of death and the third most common cause of disability (1). No large-scale epidemiological studies are available to determine the true incidence of stroke in Pakistan. There is only one published stroke prevalence study which was conducted in a community residing in Karachi, the prevalence was 4.8%, however the results of the study should be interpreted with caution as a non-validated questionnaire was used. (2). Another community-based survey suggested as estimated 21.8% prevalence of stroke in an urban slum of Karachi (3). These studies although published in local journals but do not …


Spectrum Of Fugitive Diagnosis Of Neurological Disorders In Elderly, Safia Bano, Ayesha Aslam, Adnan Tariq, Adnan Mahmood, Rashid Imran, Ahsan Numan Dec 2020

Spectrum Of Fugitive Diagnosis Of Neurological Disorders In Elderly, Safia Bano, Ayesha Aslam, Adnan Tariq, Adnan Mahmood, Rashid Imran, Ahsan Numan

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT BACKGROUND Fugitive diagnosis “escape from true diagnosis” of neurological disorders is very common in elderly patients. It’s not always an underlying disease symptom or progression in old age. Aim of this study is to determine the frequency and nature of fugitive diagnosis of neurodegenerative brain disorders in old age. MATERIAL AND METHODS STUDY DESIGN A study was conducted in private Neuro-clinic in Lahore. Study duration is 3 years from to 1st January, 2017 to 31th December, 2019. It was a prospective, cross sectional study. Inclusion criteria: 1) Age >60years 2) Neurodegenerative brain disorders including vascular dementia 3) with or …


Prevalence Of Depression In Patients With Migraine, A Cross-Sectional Study From A Tertiary Care Hospital, Zuhaib Ahmed, Umar Farooque, Aijaz Ali, Syeda Urooj Riaz, Muhammad Ramzan, Vijaya Chaitanya Bollampally, Ehtesham Zahoor, Omer Cheema, Mujeeb Ur Rehman, Rizwan Farooque, Muhammad Daim Bin Zafar Dec 2020

Prevalence Of Depression In Patients With Migraine, A Cross-Sectional Study From A Tertiary Care Hospital, Zuhaib Ahmed, Umar Farooque, Aijaz Ali, Syeda Urooj Riaz, Muhammad Ramzan, Vijaya Chaitanya Bollampally, Ehtesham Zahoor, Omer Cheema, Mujeeb Ur Rehman, Rizwan Farooque, Muhammad Daim Bin Zafar

Pakistan Journal of Neurological Sciences (PJNS)

BACKGROUND Headache is one of the most common presenting complaints in patients attending primary care centers and the majority of them have primary headache syndromes. Depressive disorders are among the leading causes of disability globally and can further complicate the clinical manifestation if coupled with other comorbidities. Therefore, the primary objective of our study was to determine the prevalence of depression in migraine patients presenting at a tertiary care hospital to better understand the leading causes of the disease. METHODS A cross-sectional study was carried out between December 2019 and June 2020 (six months) including 66 migraine patients between 18 …


Factors Affecting Treatment Compliance In Psychiatric Setting, Yasirah Gohar, Uroosa Talib, Nasir Mehmood Dec 2020

Factors Affecting Treatment Compliance In Psychiatric Setting, Yasirah Gohar, Uroosa Talib, Nasir Mehmood

Pakistan Journal of Neurological Sciences (PJNS)

No abstract provided.


Evaluation Of Post Therapy Functional Status And Residual Weakness Of Patients With Guillain-Barre Syndrome, Iqra Athar, Anam Anis, Mansoor Iqbal, Sumaira Nabi, Mazhar Badshah, Syeda Rida Dec 2020

Evaluation Of Post Therapy Functional Status And Residual Weakness Of Patients With Guillain-Barre Syndrome, Iqra Athar, Anam Anis, Mansoor Iqbal, Sumaira Nabi, Mazhar Badshah, Syeda Rida

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT: Introduction: The annual global incidence of Guillain-Barre Syndrome is approximately 1–2 per 100,000 person-years. Data on Guillain-Barre Syndrome is very rare from Pakistan, we conducted a retrospective study to assess the clinical presentation, and treatment response of these patients.


Obturator Nerve Block With Aqueous Phenol Reduces Hip Adductor Spasticity – A Single Centre Experience, Sarah Razaq, Fahim Anwar, Muhammad Aleem Arshad Dec 2020

Obturator Nerve Block With Aqueous Phenol Reduces Hip Adductor Spasticity – A Single Centre Experience, Sarah Razaq, Fahim Anwar, Muhammad Aleem Arshad

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT

Aim: Spasticity is a cardinal symptom of upper motor neuron disorders. It affects different individuals differently.

Spasticity in the hip adductor muscles can be very painful and may result in postural abnormalities and hip deformities

that interfere with walking, transferring and perineal hygiene. The study aimed to assess the effectiveness of phenol

obturator nerve block on hip adductor spasticity caused by the upper motor neuron lesions.

Materials and methods: This is a single-centre retrospective study of all patients with known spasticity in the hip

adductors who were assessed suitable for phenol nerve block of the obturator nerve. All patients …


Assessment Of Dementia Caregiver Burden In Karachi, Pakistan Using 10/66 Protocol, Qurat Ul Ain Khan Dec 2020

Assessment Of Dementia Caregiver Burden In Karachi, Pakistan Using 10/66 Protocol, Qurat Ul Ain Khan

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT INTRODUCTION: Care arrangements and caregiver burden of people with dementia (PWD) are different in low and middle income countries (LMICs) than in developed countries. This is the first study in Pakistan assessing caregiver burden using the 10/66 protocol. METHOD: PWD were recruited from outpatient clinics and from the community in Karachi and were diagnosed according to DSM-IV TR. Three scales were used: 1. Zarit Burden Interview (ZBI) to assess caregiver burden. 2. Caregiver Activity Survey (CAS) to assess activities that the caregiver engaged in the last 24 hours to care for PWD and 3. General Health Questionnaire- 12 (GHQ …


A Case Of Heroin Induced Toxic Leukoencephalopathy, Sidra Sattar, Saba Zaidi Dec 2020

A Case Of Heroin Induced Toxic Leukoencephalopathy, Sidra Sattar, Saba Zaidi

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT: Heroin-induced leukoencephalopathy comes under the category of Toxic leukoencephalopathies. We report the case of middle-aged gentleman with the history of polysubstance abuse who presented with recurrent falls, difficulty in walking and drowsiness. Diffuse white matter changes were appreciated on MRI Brain with sparing of cerebellum. In context of his history of inhalational heroin abuse with extensive symmetrical white matter changes in cerebrum, a diagnosis of heroin induced toxic leukoencephalopathy was made.


Hemichorea Associated With Type 2 Diabetes: A Rare Neurological Complication, Waleed Shahzad, Tehmina Inayat, Fibhaa Syed, Mohammad Ali Arif, Muhammad Hassan, Haris Majid Rajput, Mazhar Badshah Dec 2020

Hemichorea Associated With Type 2 Diabetes: A Rare Neurological Complication, Waleed Shahzad, Tehmina Inayat, Fibhaa Syed, Mohammad Ali Arif, Muhammad Hassan, Haris Majid Rajput, Mazhar Badshah

Pakistan Journal of Neurological Sciences (PJNS)

Diabetic hemichorea/hemiballism is a spectrum of hyper kinetic, involuntary, irregular, purposeless, non-rhythmic, rapid and unsustained movements flowing from one part of the body to another. It involves contra lateral basal-ganglia and often striatum of the brain. Here we are reporting an un-usual case of choreiform movement disorder which was sudden in onset. It was accompanied with abnormally high values of blood glucose. Our patient had a complete remission of symptoms after an adequate control of blood glucose was achieved. This case illustrates the importance and rarity of hyperglycemia as a rare cause of hemichorea. It recovers rapidly and has a …


Longitudinally Extensive Transverse Myelitis And Neuromyelitis Optica Spectrum Disorder: A Tertiary Care Centre Experience, Safia Bano, Muhammad Athar Javed, Ahsan Numan Dec 2020

Longitudinally Extensive Transverse Myelitis And Neuromyelitis Optica Spectrum Disorder: A Tertiary Care Centre Experience, Safia Bano, Muhammad Athar Javed, Ahsan Numan

Pakistan Journal of Neurological Sciences (PJNS)

ABSTRACT OBJECTIVE: To determine the frequency of longitudinally extensive transverse myelitis and Causes of longitudinally extensive transverse myelitis METHODOLOGY: A Cross-Sectional, retrospective study was conducted at Neurology Department, Mayo Hospital, Lahore from 1st January 2015 to 31st December 2015. Patients were included from inpatient with history of weakness of lower limbs/all four limbs with or without visual disturbances. History and clinical examination was consistent with transverse myelitis. Neuroimaging (MRI brain, (orbit in case of optic neuritis) and spinal cord) was done followed by LP/CSF, Vasculitis screening.


What's Going On With The Spine? Evaluation Of Alternative Sensorimotor Degeneration Post-Stroke, Sravani Mannuru, Sarvani Uppati, Kelsey Baker Dec 2020

What's Going On With The Spine? Evaluation Of Alternative Sensorimotor Degeneration Post-Stroke, Sravani Mannuru, Sarvani Uppati, Kelsey Baker

MEDI 9331 Scholarly Activities Clinical Years

Stroke is a leading cause of long-term disability in the United States. Previous research has shown a strong correlation between damage to the corticospinal tract (CST) and motor deficits in post-stroke patients. However, recent research suggests that other sensorimotor pathways (rubrospinal tract, medial reticulospinal tract) are damaged after stroke and may also contribute to motor dysfunction. Here, we will review current research suggesting that alternate sensorimotor pathways are involved in post-stroke motor dysfunction and outline possible avenues for future research.


A Narrative Review Of Targeted Therapy In Meningioma, Pituitary Adenoma, And Craniopharyngioma Of The Skull Base., Nina L. Martinez, Omaditya Khanna, Christopher J. Farrell Dec 2020

A Narrative Review Of Targeted Therapy In Meningioma, Pituitary Adenoma, And Craniopharyngioma Of The Skull Base., Nina L. Martinez, Omaditya Khanna, Christopher J. Farrell

Department of Neurosurgery Faculty Papers

Management of solid tumors involving the skull base are primarily managed with surgery and radiation, though proximity to important vascular and neuroanatomic structures often limit the extent of resection and permissible radiation dose. Meningiomas are the most common primary brain tumor in adults, and although the majority of skull base meningiomas are low-grade, their location in proximity to critical anatomical structures precludes aggressive surgical resection, and larger tumors are often resistant to radiation treatment. In patients with clinically aggressive, unresectable meningiomas, several molecular biomarkers of angiogenesis, as well as genetic mutations (SMO, AKT1, PIK3CA, KLF4, POLR2, SMARCE1, and TRAF7), have …


Longitudinally Extensive Transverse Myelitis: A Sub-Saharan Conundrum, Antonina Obayo, Sylvia Mbugua, Sayed Karar Dec 2020

Longitudinally Extensive Transverse Myelitis: A Sub-Saharan Conundrum, Antonina Obayo, Sylvia Mbugua, Sayed Karar

Internal Medicine, East Africa

Spinal cord schistosomiasis is a rare, underdiagnosed manifestation of schistosomiasis. We present the case of a 36-year-old male who presented to our institution with a one-week history of low back pain with rapidly progressive lower limb weakness, loss of sensation, and flaccid paraparesis. An MRI of the spine showed a longitudinally extensive transverse myelitis from T6 to L1, with enhancement at the cauda equina region. Further review of the images and serological tests eventually led to diagnosis of spinal schistosomiasis. He was treated with praziquantel and high-dose steroids, with minimal improvement in his symptoms.


Low Cognitive Function Is Associated With Reduced Functional Fitness Among Community-Dwelling Older Adults, Michelle Gray, Joshua Gills, Jordan Glenn, Erica Madero, Aidan Hall, Nami Fuseya, Jennifer Vincenzo, Nick Bott Dec 2020

Low Cognitive Function Is Associated With Reduced Functional Fitness Among Community-Dwelling Older Adults, Michelle Gray, Joshua Gills, Jordan Glenn, Erica Madero, Aidan Hall, Nami Fuseya, Jennifer Vincenzo, Nick Bott

Health, Human Performance and Recreation Faculty Publications and Presentations

Among older adults over 70, 22-30% report difficulty performing at least one activity of daily living (ADL). While the precipitants of ADL decline are multifactorial, over 50% of cognitively impaired adults require assistance with ADLs. The exact relationship between cognitive and functional decline remains unknown, but it is important to understand their relationship. Eighty-three older adults (80.9 + 5.4 years) enrolled in this study and completed functional fitness and cognitive assessments. Functional fitness assessments included: Short Physical Performance Battery (SPPB), 10-meter walk, dual-task, and power chair stand (average and peak). Cognition was assessed using the Montreal Cognitive Assessment (MoCA) and …


Network-Level Mechanisms Underlying Effects Of Transcranial Direct Current Stimulation (Tdcs) On Visuomotor Learning, Pejman Sehatpour, Clément Dondé, Matthew J. Hoptman, Johanna Kreither, Devin Adair, Elisa Dias, Blair Vail, Stephanie Rohrig, Gail Silipo, Javier Lopez-Calderon, Antigona Martinez, Daniel C. Javitt Dec 2020

Network-Level Mechanisms Underlying Effects Of Transcranial Direct Current Stimulation (Tdcs) On Visuomotor Learning, Pejman Sehatpour, Clément Dondé, Matthew J. Hoptman, Johanna Kreither, Devin Adair, Elisa Dias, Blair Vail, Stephanie Rohrig, Gail Silipo, Javier Lopez-Calderon, Antigona Martinez, Daniel C. Javitt

Publications and Research

Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation approach in which low level currents are administered over the scalp to influence underlying brain function. Prevailing theories of tDCS focus on modulation of excitation-inhibition balance at the local stimulation location. However, network level effects are reported as well, and appear to depend upon differential underlying mechanisms. Here, we evaluated potential network-level effects of tDCS during the Serial Reaction Time Task (SRTT) using convergent EEG- and fMRI-based connectivity approaches. Motor learning manifested as a significant (p <.0001) shift from slow to fast responses and corresponded to a significant increase in beta-coherence (p <.0001) and fMRI connectivity (p <.01) particularly within the visual-motor pathway. Differential patterns of tDCS effect were observed within different parametric task versions, consistent with network models. Overall, these findings demonstrate objective physiological effects of tDCS at the network level that result in effective behavioral modulation when tDCS parameters are matched to network-level requirements of the underlying task.


Epilepsy Risk Prediction Model For Patients With Tuberous Sclerosis Complex, Laura S Farach, Melissa A Richard, Philip J Lupo, Mustafa Sahin, Darcy A Krueger, Joyce Y Wu, Elizabeth M Bebin, Kit Sing Au, Hope Northrup, Tacern Study Group Dec 2020

Epilepsy Risk Prediction Model For Patients With Tuberous Sclerosis Complex, Laura S Farach, Melissa A Richard, Philip J Lupo, Mustafa Sahin, Darcy A Krueger, Joyce Y Wu, Elizabeth M Bebin, Kit Sing Au, Hope Northrup, Tacern Study Group

Faculty, Staff and Student Publications

BACKGROUND: Individuals with tuberous sclerosis complex are at increased risk of epilepsy. Early seizure control improves developmental outcomes, making identifying at-risk patients critically important. Despite several identified risk factors, it remains difficult to predict. The purpose of the study was to evaluate the combined risk prediction of previously identified risk factors for epilepsy in individuals with tuberous sclerosis complex.

METHODS: The study group (n = 333) consisted of individuals with tuberous sclerosis complex who were enrolled in the Tuberous Sclerosis Complex Autism Center of Excellence Research Network and UT TSC Biobank. The outcome was defined as having an epilepsy diagnosis. …


A Signal Detection Framework For Evaluating The Effects Of Feedback On Stroke Recognition, Jordan D. Bailey Dec 2020

A Signal Detection Framework For Evaluating The Effects Of Feedback On Stroke Recognition, Jordan D. Bailey

Dissertations

The impact of stroke on the lives of individuals and the healthcare system is considerable. Damage from stroke can be reduced if the treatment is administered at the appropriate time so early recognition is essential. One problem is that strokes present in a variety of ways that sometimes do not fit into the Facial drooping, Arm weakness, Speech difficulties and Time (FAST; American Heart Association, 2019) acronym. Signal detection is one way to measure decision making under conditions of uncertainty (e.g., discriminating stroke symptoms and risk factors from other symptoms, and non-risk factors). The methodology also allows us to consider …


Neural Correlates Of Social Pain In Psychological Disorders: Implications For Educational Settings, Skye E. Johnson Dec 2020

Neural Correlates Of Social Pain In Psychological Disorders: Implications For Educational Settings, Skye E. Johnson

Honors Projects

Pain has long been defined as a multidimensional construct; in past research, not only have the physical and sensory aspects of pain been investigated, but also the cognitive and emotional aspects, which include the experience of social pain. This experience is generally accepted to be very distressing and can have adverse effects on one's mental health, especially for those with neurological disorders. In my paper, I examine the effects of social pain on brain activity in individuals with autism spectrum disorder (ASD) and borderline personality disorder (BPD) as compared to those who are neurotypical. This research finds that while neurotypical …


Inflammatory Myopathies: Update On Diagnosis, Pathogenesis And Therapies, And Covid-19-Related Implications., Marinos C. Dalakas Dec 2020

Inflammatory Myopathies: Update On Diagnosis, Pathogenesis And Therapies, And Covid-19-Related Implications., Marinos C. Dalakas

Department of Neurology Faculty Papers

The inflammatory myopathies constitute a heterogeneous group of acquired myopathies that have in common the presence of endomysial inflammation. Based on steadily evolved clinical, histological and immunopathological features and some autoantibody associations, these disorders can now be classified in five characteristic subsets: Dermatomyositis (DM) Polymyositis (PM), Necrotizing Autoimmune Myositis (NAM), Anti-synthetase syndrome-overlap myositis (Anti-SS-OM), and Inclusion-Body-Myositis (IBM). Each inflammatory myopathy subset has distinct immunopathogenesis, prognosis and response to immunotherapies, necessitating the need to correctly identify each subtype from the outset to avoid disease mimics and proceed to early therapy initiation. The review presents the main clinicopathologic characteristics of each subset …


Acute Ischemic Stroke As The Presenting Feature Of Covid-19 In The Young And Pregnant, Nermila A. Ballmick, Jiri F. Kubac, Hossein Akhondi Nov 2020

Acute Ischemic Stroke As The Presenting Feature Of Covid-19 In The Young And Pregnant, Nermila A. Ballmick, Jiri F. Kubac, Hossein Akhondi

HCA Healthcare Journal of Medicine

Introduction: Coronavirus disease (COVID-19) is an emerging and rapidly evolving public health issue that has become globally widespread and an overwhelming pandemic. Clinical manifestations of the disease include asymptomatic carrier states, acute respiratory distress syndrome, and even multiorgan dysfunction. Here, we present a unique and rare case of an acute ischemic stroke (AIS) in an asymptomatic pregnant woman with no predisposing medical illnesses.

Discussion: An 18-year-old G2P1 African American woman at 7 weeks gestational age with no significant medical or family history presenting to the Emergency Department during the initial phases of the pandemic with complaints of new onset left …


Neuropsychiatric Presentation Of Covid-19: A Case Report Of Disinhibition In An Acute Sars-Cov-2 Infection, I. Jack Abramson, Kristy A. Fisher, Clara V. Alvarez, Jacqueline Horan Fisher Nov 2020

Neuropsychiatric Presentation Of Covid-19: A Case Report Of Disinhibition In An Acute Sars-Cov-2 Infection, I. Jack Abramson, Kristy A. Fisher, Clara V. Alvarez, Jacqueline Horan Fisher

HCA Healthcare Journal of Medicine

Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) viral infection is notable for a high degree of symptom diversity. Emerging evidence suggests viral invasion of the central nervous system; therefore, serious neurological and psychiatric manifestations are anticipated. We present the case of a 67-year-old male physician with a history of stable Bipolar Disorder for decades, hospitalized for persistent COVID-19 symptoms with documented positive serology, who presented with new and acute onset neuropsychiatric symptoms of disinhibition proximate the viral infection. We postulate neuroinvasion as the putative origin of the patient’s psychiatric instability. Further investigation is needed to expand upon our understanding of the …


Dynamic Body-Weight Support To Boost Rehabilitation Outcomes In Patients With Non-Traumatic Spinal Cord Injury: An Observational Study, Justin P. Huber, Lumy Sawaki Nov 2020

Dynamic Body-Weight Support To Boost Rehabilitation Outcomes In Patients With Non-Traumatic Spinal Cord Injury: An Observational Study, Justin P. Huber, Lumy Sawaki

Neurology Faculty Publications

BACKGROUND: Dynamic body-weight support (DBWS) may play an important role in rehabilitation outcomes, but the potential benefit among disease-specific populations is unclear. In this study, we hypothesize that overground therapy with DBWS during inpatient rehabilitation yields greater functional improvement than standard-of-care in adults with non-traumatic spinal cord injury (NT-SCI).

METHODS: This retrospective cohort study included individuals diagnosed with NT-SCI and undergoing inpatient rehabilitation. All participants were recruited at a freestanding inpatient rehabilitation hospital. Individuals who trained with DBWS for at least three sessions were allocated to the experimental group. Participants in the historical control group received standard-of-care (i.e., no DBWS). …


Applications Of Non-Invasive Neuromodulation For The Management Of Disorders Related To Covid-19, Abrahão Fontes Baptista, Adriana Baltar, Alexandre Hideki Okano, Alexandre Moreira, Ana Carolina Pinheiro Campos, Ana Mércia Fernandes, André Russowsky Brunoni, Bashar W. Badran, Clarice Tanaka, Daniel Ciampi De Andrade, Daniel Gomes Da Silva Machado, Edgard Morya, Eduardo Trujillo, Jaiti K. Swami, Joan A. Camprodon, Katia Monte-Silva, Katia Nunes Sá, Isadora Nunes, Juliana Barbosa Goulardins, Marom Bikson, Pedro Sudbrack-Oliveira, Priscila De Carvalho, Rafael Jardim Duarte-Moreira, Rosana Lima Pagano, Samuel Katsuyuki Shinjo, Yossi Zana Nov 2020

Applications Of Non-Invasive Neuromodulation For The Management Of Disorders Related To Covid-19, Abrahão Fontes Baptista, Adriana Baltar, Alexandre Hideki Okano, Alexandre Moreira, Ana Carolina Pinheiro Campos, Ana Mércia Fernandes, André Russowsky Brunoni, Bashar W. Badran, Clarice Tanaka, Daniel Ciampi De Andrade, Daniel Gomes Da Silva Machado, Edgard Morya, Eduardo Trujillo, Jaiti K. Swami, Joan A. Camprodon, Katia Monte-Silva, Katia Nunes Sá, Isadora Nunes, Juliana Barbosa Goulardins, Marom Bikson, Pedro Sudbrack-Oliveira, Priscila De Carvalho, Rafael Jardim Duarte-Moreira, Rosana Lima Pagano, Samuel Katsuyuki Shinjo, Yossi Zana

Publications and Research

Background: Novel coronavirus disease (COVID-19) morbidity is not restricted to the respiratory system, but also affects the nervous system. Non-invasive neuromodulation may be useful in the treatment of the disorders associated with COVID-19.

Objective: To describe the rationale and empirical basis of the use of non-invasive neuromodulation in the management of patients with COVID-10 and related disorders.

Methods: We summarize COVID-19 pathophysiology with emphasis of direct neuroinvasiveness, neuroimmune response and inflammation, autonomic balance and neurological, musculoskeletal and neuropsychiatric sequela. This supports the development of a framework for advancing applications of non-invasive neuromodulation in the management COVID-19 and related disorders.

Results: …


Diagnosing And Managing Post-Stroke Aphasia, Shannon M. Sheppard, Rajani Sebastian Nov 2020

Diagnosing And Managing Post-Stroke Aphasia, Shannon M. Sheppard, Rajani Sebastian

Communication Sciences and Disorders Faculty Articles and Research

Introduction: Aphasia is a debilitating language disorder and even mild forms of aphasia can negatively affect functional outcomes, mood, quality of life, social participation, and the ability to return to work. Language deficits after post-stroke aphasia are heterogeneous.

Areas covered: The first part of this manuscript reviews the traditional syndrome-based classification approach as well as recent advances in aphasia classification that incorporate automatic speech recognition for aphasia classification. The second part of this manuscript reviews the behavioral approaches to aphasia treatment and recent advances such as noninvasive brain stimulation techniques and pharmacotherapy options to augment the effectiveness of …


Sleep Deprivation And Neurological Disorders, Muhammed Bishir Nov 2020

Sleep Deprivation And Neurological Disorders, Muhammed Bishir

Brain and Mind Institute

Sleep plays an important role in maintaining neuronal circuitry, signalling and helps maintain overall health and wellbeing. Sleep deprivation (SD) disturbs the circadian physiology and exerts a negative impact on brain and behavioural functions. SD impairs the cellular clearance of misfolded neurotoxin proteins like α-synuclein, amyloid-β, and tau which are involved in major neurodegenerative diseases like Alzheimer’s disease and Parkinson’s disease. In addition, SD is also shown to affect the glymphatic system, a glial-dependent metabolic waste clearance pathway, causing accumulation of misfolded faulty proteins in synaptic compartments resulting in cognitive decline. Also, SD affects the immunological and …


Social And Leisure Activities Predict Transitions In Cognitive Functioning In Older Mexican Adults: A Latent Transition Analysis Of The Mexican Health And Aging Study, Heather Mary Brown, Stephen A Murray, Hope Northrup, Kit Sing Au, Lee A Niswander Nov 2020

Social And Leisure Activities Predict Transitions In Cognitive Functioning In Older Mexican Adults: A Latent Transition Analysis Of The Mexican Health And Aging Study, Heather Mary Brown, Stephen A Murray, Hope Northrup, Kit Sing Au, Lee A Niswander

Faculty, Staff and Student Publications

Disruptions in neural tube (NT) closure result in neural tube defects (NTDs). To understand the molecular processes required for mammalian NT closure, we investigated the role of Snx3, a sorting nexin gene. Snx3−/− mutant mouse embryos display a fully-penetrant cranial NTD. In vivo, we observed decreased canonical WNT target gene expression in the cranial neural epithelium of the Snx3−/− embryos and a defect in convergent extension of the neural epithelium. Snx3−/− cells show decreased WNT secretion, and live cell imaging reveals aberrant recycling of the WNT ligand-binding protein WLS and mis-trafficking to the lysosome for degradation. The importance …


Efficacy And Safety Of Abobotulinumtoxina For Upper Limb Spasticity In Children With Cerebral Palsy: A Randomized Repeat-Treatment Study, Mauricio R. Delgado, Ann Tilton, Jorge Carranzo-Del Rio, Nigar Dursun, Marcin Bonikowski, Resa Aydin, Iwona Maciag-Tymecka, Joyce Oleszek, Edward Dabrowski, Anne-Sophie Grandoulier, Philippe Picaut, The Dysport In Pul Study Group Nov 2020

Efficacy And Safety Of Abobotulinumtoxina For Upper Limb Spasticity In Children With Cerebral Palsy: A Randomized Repeat-Treatment Study, Mauricio R. Delgado, Ann Tilton, Jorge Carranzo-Del Rio, Nigar Dursun, Marcin Bonikowski, Resa Aydin, Iwona Maciag-Tymecka, Joyce Oleszek, Edward Dabrowski, Anne-Sophie Grandoulier, Philippe Picaut, The Dysport In Pul Study Group

School of Medicine Faculty Publications

Aim: To assess the efficacy and safety of repeat abobotulinumtoxinA injections in reducing upper limb spasticity in children with cerebral palsy (CP). Method: This was a double-blind, repeat-cycle study (NCT02106351) in children with CP (2–17y). Children were randomized to receive 2U/kg (control), 8U/kg, or 16U/kg abobotulinumtoxinA injections into the target muscle group (wrist or elbow flexors) and additional muscles alongside occupational therapy via a home-exercise therapy program (HETP; minimum five 15min sessions/wk). Children received 8U/kg or 16U/kg plus HETP in cycles 2 to 4. Results: During cycle 1, 210 children (126 males, 84 females; mean age [SD] 9y [4y 5mo], …


Metabolic Network Analysis Reveals Altered Bile Acid Synthesis And Metabolism In Alzheimer's Disease., Priyanka Baloni, Cory C Funk, Jingwen Yan, James T Yurkovich, Alexandra Kueider-Paisley, Kwangsik Nho, Almut Heinken, Wei Jia, Siamak Mahmoudiandehkordi, Gregory Louie, Andrew J Saykin, Matthias Arnold, Gabi Kastenmüller, William J Griffiths, Ines Thiele, Alzheimer’S Disease Metabolomics Consortium, Rima Kaddurah-Daouk, Nathan D Price Nov 2020

Metabolic Network Analysis Reveals Altered Bile Acid Synthesis And Metabolism In Alzheimer's Disease., Priyanka Baloni, Cory C Funk, Jingwen Yan, James T Yurkovich, Alexandra Kueider-Paisley, Kwangsik Nho, Almut Heinken, Wei Jia, Siamak Mahmoudiandehkordi, Gregory Louie, Andrew J Saykin, Matthias Arnold, Gabi Kastenmüller, William J Griffiths, Ines Thiele, Alzheimer’S Disease Metabolomics Consortium, Rima Kaddurah-Daouk, Nathan D Price

Articles, Abstracts, and Reports

Increasing evidence suggests Alzheimer's disease (AD) pathophysiology is influenced by primary and secondary bile acids, the end product of cholesterol metabolism. We analyze 2,114 post-mortem brain transcriptomes and identify genes in the alternative bile acid synthesis pathway to be expressed in the brain. A targeted metabolomic analysis of primary and secondary bile acids measured from post-mortem brain samples of 111 individuals supports these results. Our metabolic network analysis suggests that taurine transport, bile acid synthesis, and cholesterol metabolism differ in AD and cognitively normal individuals. We also identify putative transcription factors regulating metabolic genes and influencing altered metabolism in AD. …


Pharmacological Intervention In Children With Autism Spectrum Disorder With Standard Supportive Therapies Significantly Improves Core Signs And Symptoms: A Single-Center, Retrospective Case Series, Hamza A. Alsayouf, Haitham Talo, Marisa L. Biddappa, Mohammad Qasaymeh, Shadi Qasem, Emily De Los Reyes Nov 2020

Pharmacological Intervention In Children With Autism Spectrum Disorder With Standard Supportive Therapies Significantly Improves Core Signs And Symptoms: A Single-Center, Retrospective Case Series, Hamza A. Alsayouf, Haitham Talo, Marisa L. Biddappa, Mohammad Qasaymeh, Shadi Qasem, Emily De Los Reyes

Pathology and Laboratory Medicine Faculty Publications

Purpose: Autism spectrum disorder (ASD) is a debilitating neurodevelopmental disorder with high heterogeneity and no clear common cause. Several drugs, in particular risperidone and aripiprazole, are used to treat comorbid challenging behaviors in children with ASD. Treatment with risperidone and aripiprazole is currently recommended by the Food and Drug Administration (FDA) in the USA for children aged 5 and 6 years and older, respectively. Here, we investigated the use of these medications in younger patients aged 4 years and older.

Patients and Methods: This retrospective case series included 18 children (mean age, 5.7 years) with ASD treated at the Kids …


Safety And Tolerability Of Srx246, A Vasopressin 1a Antagonist, In Irritable Huntington's Disease Patients-A Randomized Phase 2 Clinical Trial., Michael J Brownstein, Neal G Simon, Jeffrey D Long, Jon Yankey, Hilda T Maibach, Merit Cudkowicz, Christopher Coffey, Robin A Conwit, Codrin Lungu, Karen E Anderson, Steven M Hersch, Dixie J Ecklund, Eve M Damiano, Debra E Itzkowitz, Shifang Lu, Marianne K Chase, Jeremy M Shefner, Andrew Mcgarry, Brenda Thornell, Catherine Gladden, Michele Costigan, Padraig O'Suilleabhain, Frederick J Marshall, Amy M Chesire, Paul Deritis, Jamie L Adams, Peter Hedera, Kelly Lowen, H Diana Rosas, Amie L Hiller, Joseph Quinn, Kellie Keith, Andrew P Duker, Christina Gruenwald, Angela Molloy, Cara Jacob, Stewart Factor, Elaine Sperin, Danny Bega, Zsazsa R Brown, Lauren C Seeberger, Victor W Sung, Melanie Benge, Sandra K Kostyk, Allison M Daley, Susan Perlman, Valerie Suski, Patricia Conlon, Matthew J Barrett, Stephanie Lowenhaupt, Mark Quigg, Joel S Perlmutter, Brenton A Wright, Elaine Most, Guy J Schwartz, Jessica Lamb, Rosalind S Chuang, Carlos Singer, Karen Marder, Joyce A Moran, John R Singleton, Meghan Zorn, Paola V Wall, Richard M Dubinsky, Carolyn Gray, Carolyn Drazinic Nov 2020

Safety And Tolerability Of Srx246, A Vasopressin 1a Antagonist, In Irritable Huntington's Disease Patients-A Randomized Phase 2 Clinical Trial., Michael J Brownstein, Neal G Simon, Jeffrey D Long, Jon Yankey, Hilda T Maibach, Merit Cudkowicz, Christopher Coffey, Robin A Conwit, Codrin Lungu, Karen E Anderson, Steven M Hersch, Dixie J Ecklund, Eve M Damiano, Debra E Itzkowitz, Shifang Lu, Marianne K Chase, Jeremy M Shefner, Andrew Mcgarry, Brenda Thornell, Catherine Gladden, Michele Costigan, Padraig O'Suilleabhain, Frederick J Marshall, Amy M Chesire, Paul Deritis, Jamie L Adams, Peter Hedera, Kelly Lowen, H Diana Rosas, Amie L Hiller, Joseph Quinn, Kellie Keith, Andrew P Duker, Christina Gruenwald, Angela Molloy, Cara Jacob, Stewart Factor, Elaine Sperin, Danny Bega, Zsazsa R Brown, Lauren C Seeberger, Victor W Sung, Melanie Benge, Sandra K Kostyk, Allison M Daley, Susan Perlman, Valerie Suski, Patricia Conlon, Matthew J Barrett, Stephanie Lowenhaupt, Mark Quigg, Joel S Perlmutter, Brenton A Wright, Elaine Most, Guy J Schwartz, Jessica Lamb, Rosalind S Chuang, Carlos Singer, Karen Marder, Joyce A Moran, John R Singleton, Meghan Zorn, Paola V Wall, Richard M Dubinsky, Carolyn Gray, Carolyn Drazinic

Articles, Abstracts, and Reports

SRX246 is a vasopressin (AVP) 1a receptor antagonist that crosses the blood-brain barrier. It reduced impulsive aggression, fear, depression and anxiety in animal models, blocked the actions of intranasal AVP on aggression/fear circuits in an experimental medicine fMRI study and demonstrated excellent safety in Phase 1 multiple-ascending dose clinical trials. The present study was a 3-arm, multicenter, randomized, placebo-controlled, double-blind, 12-week, dose escalation study of SRX246 in early symptomatic Huntington's disease (HD) patients with irritability. Our goal was to determine whether SRX246 was safe and well tolerated in these HD patients given its potential use for the treatment of problematic …