Medicine and Health Sciences Commons^™

Antiplatelet Use In Ischemic Stroke, Marharyta Kamarova, Sheharyar Baig, Hamish Patel, Kimberley Monks, Mohammad Wasay, Ali Ali, Jessica Redgrave, Arshad Majid, Simon M. Bell

Section of Neurology

Objective: A literature review of antiplatelet agents for primary and secondary stroke prevention, including mechanism of action, cost, and reasons for lack of benefit.
Data sources: Articles were gathered from MEDLINE, Cochrane Reviews, and PubMed databases (1980-2021). Abstracts from scientific meetings were considered. Search terms included ischemic stroke, aspirin, clopidogrel, dipyridamole, ticagrelor, cilostazol, prasugrel, glycoprotein IIb/IIIa inhibitors.
Study selection and data extraction: English-language original and review articles were evaluated. Guidelines from multiple countries were reviewed. Articles were evaluated independently by 2 authors.
Data synthesis: An abundance of evidence supports aspirin and clopidogrel use for secondary stroke prevention. In the acute …

Pathogenic Tnf-Α Drives Peripheral Nerve Inflammation In An Aire-Deficient Model Of Autoimmunity, Yan Wang, Lily Guo, Xihui Yin, Ethan C Mccarthy, Mandy I Cheng, Aline T Hoang, Ho-Chung Chen, Anushi Y Patel, Denise Allard Trout, Erin Xu, Natalie Yakobian, Willy Hugo, James F Howard, Katherine M Sheu, Alexander Hoffmann, Melissa G Lechner, Maureen A Su

Department of Neurology Faculty Papers

Immune cells infiltrate the peripheral nervous system (PNS) after injury and with autoimmunity, but their net effect is divergent. After injury, immune cells are reparative, while in inflammatory neuropathies (e.g., Guillain Barré Syndrome and chronic inflammatory demyelinating polyneuropathy), immune cells are proinflammatory and promote autoimmune demyelination. An understanding of immune cell phenotypes that distinguish these conditions may, therefore, reveal new therapeutic targets for switching immune cells from an inflammatory role to a reparative state. In an autoimmune regulator (Aire)-deficient mouse model of inflammatory neuropathy, we used single-cell RNA sequencing of sciatic nerves to discover a transcriptionally heterogeneous cellular landscape, including …

A Taxonomy Of Childhood Pedal Cyclist Injuries From Latent Class Analysis: Associations With Factors Pertinent To Prevention, Joseph Piatt

Department of Neurosurgery Faculty Papers

Background: Studies of pedal cyclist injuries have largely focused on individual injury categories, but every region of the cyclist's body is exposed to potential trauma. Real-world injury patterns can be complex, and isolated injuries to one body part are uncommon among casualties requiring hospitalization. Latent class analysis (LCA) may identify important patterns in heterogeneous samples of qualitative data.

Methods: Data were taken from the Trauma Quality Improvement Program of the American College of Surgeons for 2017. Inclusion criteria were age 18 years or less and an external cause of injury code for pedal cyclist. Injuries were characterized by Abbreviated Injury …

Recent Advances In Our Molecular And Mechanistic Understanding Of Misfolded Cellular Proteins In Alzheimer’S Disease (Ad) And Prion Disease (Prd), Walter J. Lukiw

School of Medicine Faculty Publications

Naturally occurring neuron-abundant proteins including amyloid Aβ42 peptide and the microtubule-associated protein tau (MAPT) can, over time and under pathological situations, assume atypical conformations, altering their normal biological structure and function, and causing them to aggregate into insoluble and neurotoxic intracellular inclusions. These misfolded proteins ultimately contribute to the pathogenesis of several progressive, age-related and ultimately lethal human neurodegenerative disorders. The molecular mechanism of this pathological phenomenon of neuronal protein misfolding lends support to the ‘prion hypothesis’, which predicts that the aberrant folding of endogenous natural protein structures into unusual pathogenic isoforms can induce the atypical folding of other similar …

Short Chain Fatty Acids Taken At Time Of Thrombectomy In Acute Ischemic Stroke Patients Are Independent Of Stroke Severity But Associated With Inflammatory Markers And Worse Symptoms At Discharge, Nicholas Henry, Jacqueline A. Frank, Christopher J. Mclouth, Amanda L. Trout, Andrew J. Morris, Jianzhong Chen, Ann M. Stowe, Justin F. Fraser, Keith R. Pennypacker

Behavioral Science Faculty Publications

Introduction: Short chain fatty acids (SCFA) are gut microbiota-derived metabolites that contribute to the gut-brain axis and may impact stroke outcomes following gut dysbiosis. We evaluated plasma SCFA concentrations against stroke severity parameters and identified SCFA-associated protein networks.

Methods: The Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC), a continuously enrolling tissue bank, was used to obtain stroke samples. Arterial blood distal and proximal to the thrombus was obtained from Acute Ischemic Stroke (AIS) Patients (n=53) during thrombectomy. Patient demographics, stroke presentation and outcome parameters were reported. The SCFAs were isolated from proximal plasma via chemical derivatization UHPLC coupled tandem …

Atypical Ataxia Presentation In Variant Ataxia Telangiectasia: Iranian Case-Series And Review Of The Literature, Tannaz Moeini Shad, Reza Yazdani, Parisa Amirifar, Samaneh Delavari, Marzieh Heidarzadeh Arani, Seyed Alireza Mahdaviani, Mahnaz Sadeghi-Shabestari, Asghar Aghamohammadi, Nima Rezaei, Hassan Abolhassani

Department of Neurology Faculty Papers

Ataxia-telangiectasia (AT) is a rare autosomal recessive neurodegenerative multisystem disorder. A minority of AT patients can present late-onset atypical presentations due to unknown mechanisms. The demographic, clinical, immunological and genetic data were collected by direct interview and examining the Iranian AT patients with late-onset manifestations. We also conducted a systematic literature review for reported atypical AT patients. We identified three Iranian AT patients (3/249, 1.2% of total registry) with later age at ataxia onset and slower neurologic progression despite elevated alpha-fetoprotein levels, history of respiratory infections, and immunological features of the syndrome. Of note, all patients developed autoimmunity in which …

Transcranial Direct Current Stimulation On Parkinson’S Disease: Systematic Review And Meta-Analysis, Paloma Cristina Alves De Oliveira, Thiago Anderson Brito De Araújo, Daniel Gomes Da Silva Machado, Abner Cardoso Rodrigues, Marom Bikson, Suellen Marinho Andrade, Alexandre Hideki Okano, Hougelle Simplicio, Rodrigo Pegado, Edgard Morya

Publications and Research

Background: Clinical impact of transcranial direct current stimulation (tDCS) alone for Parkinson’s disease (PD) is still a challenge. Thus, there is a need to synthesize available results, analyze methodologically and statistically, and provide evidence to guide tDCS in PD.

Objective: Investigate isolated tDCS effect in different brain areas and number of stimulated targets on PD motor symptoms.

Methods: A systematic review was carried out up to February 2021, in databases: Cochrane Library, EMBASE, PubMed/MEDLINE, Scopus, and Web of science. Full text articles evaluating effect of active tDCS (anodic or cathodic) vs. sham or control on motor symptoms of PD were …

The Relationship Between Malignant Tumors And Ischemic Stroke: Ii. Chronology Of Diagnoses And Treatment Of Strokes, Nóra Hajnóczky, Dániel Bereczki

Department of Medicine Faculty Papers

Összefoglaló. A malignus daganatok és a stroke együttesen gyakran fordulnak elő a stroke tradicionális rizikófaktoraival (magas vérnyomás, hyperlipidaemia, cukorbetegség, elhízás, dohányzás) rendelkező betegekben. Az elmúlt évtized kutatási eredményei alátámasztották, hogy a rosszindulatú daganatban szenvedő betegekben szignifikánsan nagyobb a stroke kockázata. A malignus daganatokhoz társuló stroke a leggyakrabban a malignus daganat diagnózisát követő fél-egy év során jelentkezik. A kapcsolat a másik irányban is létezik: stroke-betegek követése során malignus daganat szignifikánsan gyakrabban jelent meg, mint a stroke-mentes kontrollcsoportban. A daganatot a leginkább a stroke utáni első hat hónapban diagnosztizálják. A korábban nem ismert rosszindulatú daganat időnként az akut stroke kezelése során derül …

New Inroads Into Our Understanding Of The Tauopathies, Alzheimer's Disease, And The Contribution Of Altered Protein Conformation To Human Neurological Disease, Walter J. Lukiw

School of Medicine Faculty Publications

No abstract provided.

Care Gaps And Recommendations In Vestibular Migraine: An Expert Panel Summit, Monica P Mallampalli, Habib G Rizk, Amir Kheradmand, Shin C Beh, Mehdi Abouzari, Alaina M Bassett, James Buskirk, Claire E J Ceriani, Matthew G Crowson, Hamid Djalilian, Joel A Goebel, Jeffery J Kuhn, Anne E Luebke, Marco Mandalà, Magdalena Nowaczewska, Nicole Spare, Roberto Teggi, Maurizio Versino, Hsiangkuo Yuan, Ashley Zaleski-King, Michael Teixido, Frederick Godley

Department of Neurology Faculty Papers

Vestibular migraine (VM) is an increasingly recognized pathology yet remains as an underdiagnosed cause of vestibular disorders. While current diagnostic criteria are codified in the 2012 Barany Society document and included in the third edition of the international classification of headache disorders, the pathophysiology of this disorder is still elusive. The Association for Migraine Disorders hosted a multidisciplinary, international expert workshop in October 2020 and identified seven current care gaps that the scientific community needs to resolve, including a better understanding of the range of symptoms and phenotypes of VM, the lack of a diagnostic marker, a better understanding of …

Adult-Onset Alexander Disease Uncovered In A Previously Healthy Patient Presenting With Acute Stroke-Like Symptoms, Usaamah M. Khan, Matthew Barrett, Alex Dworetz Do

Graduate Medical Education (GME) Resident and Fellow Research Day Posters

Alexander Disease is a rare, often fatal, leukoencephalopathy of early childhood associated with a heterozygous mutation of the glial fibrillary acid protein (GFAP) gene. Adult-Onset Alexander Disease (AOAD) is an exceptionally rare leukoencephalopathy that often presents with slowly progressive brainstem and cervical cord dysfunction features. Acute onset of AOAD has only ever been reported three times in the literature. We report a case of acute onset AOAD in a patient that presented with bulbar symptoms and left hemiplegia initially concerning for acute stroke.

Mechanisms Of Memory Updating: State Dependency Vs. Reconsolidation, Christopher Kiley, Colleen M. Parks

Psychology Faculty Research

Reactivating a memory trace has been argued to put it in a fragile state where it must undergo a stabilization process known as reconsolidation. During this process, memories are thought to be susceptible to interference and can be updated with new information. In the spatial context paradigm, memory updating has been shown to occur when new information is presented in the same spatial context as old information, an effect attributed to a reconsolidation process. However, the integration concept holds that memory change can only occur when reactivation and test states are the same, similar to a state-dependent effect. Thus, in …

Analysis Of Race And Sex Bias In The Autism Diagnostic Observation Schedule (Ados-2), Luther G. Kalb, Vini Singh, Ji Su Hong, Calliope Holingue, Natasha N. Ludwig, Danika Pfeiffer, Rachel Reetzke, Alden L. Gross, Rebecca Landa

Communication Disorders & Special Education Faculty Publications

Importance: There are long-standing disparities in the prevalence of autism spectrum disorder (ASD) across race and sex. Surprisingly, few studies have examined whether these disparities arise partially out of systematic biases in the Autism Diagnostic Observation Schedule, Second Edition (ADOS-2), the reference standard measure of ASD.

Objective: To examine differential item functioning (DIF) of ADOS-2 items across sex and race.

Design, Setting, and Participants: This is a cross-sectional study of children who were evaluated for ASD between 2014 and 2020 at a specialty outpatient clinic located in the Mid-Atlantic region of the US. Data were analyzed from July 2021 to …

Repeated Exposure To Chlorpyrifos Is Associated With A Dose-Dependent Chronic Neurobehavioral Deficit In Adult Rats, Ana C. R. Ribeiro, Elisa Hawkins, Fay M. Jahr, Joseph L. Mcclay, Laxmikant Deshpande

Neurology Publications

Organophosphate (OP) chemicals include commonly used pesticides and chemical warfare agents, and mechanistically they are potent inhibitors of the cholinesterase (ChE) enzyme. Epidemiological studies report long-term neuropsychiatric issues, including depression and cognitive impairments in OP-exposed individuals. Chlorpyrifos (CPF) is one of the most widely used pesticides worldwide. Multiple laboratory studies have reported on either the long-term behavioral effect of an acute high-dose CPF (30-250 mg/kg) or studied sub-chronic behavioral effects, particularly the motor and cognitive effects of repeated low-dose CPF. However, studies are lacking on chronic mood and depression-related morbidities following repeated CPF doses that would mimic occupationally relevant OP …

Qu-Brats: Miccai Brats 2020 Challenge On Quantifying Uncertainty In Brain Tumor Segmentation - Analysis Of Ranking Scores And Benchmarking Results, Raghav Mehta, Angelos Filos, Ujjwal Baid, Chiharu Sako, Richard Mckinley, Michael Rebsamen, Katrin Dätwyler, Raphael Meier, Piotr Radojewski, Gowtham Krishnan Murugesan, Sahil Nalawade, Chandan Ganesh, Ben Wagner, Fang F. Yu, Baowei Fei, Ananth J. Madhuranthakam, Joseph A. Maldjian, Laura Daza, Catalina Gómez, Pablo Arbeláez, Chengliang Dai, Shuo Wang, Hadrien Reynaud, Yuan-Han Mo, Elsa Angelini, Yike Guo, Wenjia Bai, Subhashis Banerjee, Lin-Min Pei, Murat Ak, Sarahi Rosas-González, Ilyess Zemmoura, Clovis Tauber, Minh H. Vu, Tufve Nyholm, Tommy Löfstedt, Laura Mora Ballestar, Veronica Vilaplana, Hugh Mchugh, Gonzalo Maso Talou, Alan Wang, Jay Patel, Ken Chang, Katharina Hoebel, Mishka Gidwani, Nishanth Arun, Sharut Gupta, Mehak Aggarwal, Praveer Singh, Elizabeth R. Gerstner, Jayashree Kalpathy-Cramer, Nicholas Boutry, Alexis Huard, Lasitha Vidyaratne, Md. Monibor Rahman, Khan M. Iftekharuddin, Joseph Chazalon, Elodie Puybareau, Guillaume Tochon, Jun Ma, Mariano Cabezas, Xavier Llado, Arnau Oliver, Liliana Valencia, Sergi Valverde, Mehdi Amian, Mohammadreza Soltaninejad, Andriy Myronenko, Ali Hatamizadeh, Xue Feng, Quan Dou, Nicholas Tustison, Craig Meyer, Nisarg A. Shah, Sanjay Talbar, Marc-André Weber, Abhishek Mahajan, Andras Jakab, Roland Wiest, Hassan M. Fathallah-Shaykh, Arash Nazeri, Mikhail Milchenko1, Daniel Marcus, Aikaterini Kotrotsou, Rivka Colen, John Freymann, Justin Kirby, Christos Davatzikos, Bjoern Menze, Spyridon Bakas, Yarin Gal, Tal Arbel

Electrical & Computer Engineering Faculty Publications

Deep learning (DL) models have provided the state-of-the-art performance in a wide variety of medical imaging benchmarking challenges, including the Brain Tumor Segmentation (BraTS) challenges. However, the task of focal pathology multi-compartment segmentation (e.g., tumor and lesion sub-regions) is particularly challenging, and potential errors hinder the translation of DL models into clinical workflows. Quantifying the reliability of DL model predictions in the form of uncertainties, could enable clinical review of the most uncertain regions, thereby building trust and paving the way towards clinical translation. Recently, a number of uncertainty estimation methods have been introduced for DL medical image segmentation tasks. …

Editorial: Infection, Inflammation, And Neurodegeneration: A Critical Path To Alzheimer's Disease, Volume Ii., Roberta Mancuso, Simone Agostini, Denah Appelt, Brian J. Balin

PCOM Scholarly Papers

No abstract available

Neuromotor Changes In Participants With A Concussion History Can Be Detected With A Custom Smartphone App, Christopher K. Rhea, Masahiro Yamada, Nikita A. Kuznetsov, Jason T. Jakiela, Chanel T. Lojacono, Scott E. Ross, F. J. Haran, Jason M. Bailie, W. Geoffrey Wright

Rehabilitation Sciences Faculty Publications

Neuromotor dysfunction after a concussion is common, but balance tests used to assess neuromotor dysfunction are typically subjective. Current objective balance tests are either cost- or space-prohibitive, or utilize a static balance protocol, which may mask neuromotor dysfunction due to the simplicity of the task. To address this gap, our team developed an Android-based smartphone app (portable and cost-effective) that uses the sensors in the device (objective) to record movement profiles during a stepping-in-place task (dynamic movement). The purpose of this study was to examine the extent to which our custom smartphone app and protocol could discriminate neuromotor behavior between …

Detecting Primary Progressive Aphasia Atrophy Patterns: A Comparison Of Visual Assessment And Quantitative Neuroimaging Techniques, Stephanie Franczak, Jessica Pommy, Greta Minor, Chandler Zolliecoffer, Manav Bhalla, Mohit Agarwal, Andrew Nencka, Yang Wang, Andrew Klein, Darren O'Neill, Jude Henry, Glass Umfleet

Journal Articles

BACKGROUND: There are now clinically available automated MRI analysis software programs that compare brain volumes of patients to a normative sample and provide

OBJECTIVE: To address this gap in the literature, we examined Neuroreader

METHODS: lvPPA or aMCI patients who underwent MRI with Neuroreader

RESULTS: Cohen's Kappa coefficients were significant in 10 of the 28 computations (

CONCLUSION: Overall, our results indicated moderate to low interrater reliability, and raters never agreed that left asymmetry was present. While lower

Functional Mri Correlates Of Carbon Dioxide Chemosensing In Persons With Epilepsy, Johnson P Hampson, Nuria Lacuey, Mrs Sandhya Rani, Jaison S Hampson, Kristina A Simeone, Timothy A Simeone, Ponnada A Narayana, Louis Lemieux, Samden D Lhatoo

Journal Articles

OBJECTIVES: Sudden unexpected death in epilepsy (SUDEP) is a catastrophic epilepsy outcome for which there are no reliable premortem imaging biomarkers of risk. Percival respiratory depression is seen in monitored SUDEP and near SUDEP cases, and abnormal chemosensing of raised blood carbon dioxide (CO

METHODS: We analyzed fMRI BOLD activation and brain connectivity in 10 PWE and 10 age- and sex-matched HCs during precisely metered iso-oxic, hypercapnic breathing challenges. Segmented brainstem responses were of particular interest, along with characterization of functional connectivity metrics between these structures. Regional BOLD activations during hypercapnic challenges were convolved with hemodynamic responses, and the resulting …

A Family With Neuropathies And An Mfn2 Variant, Leah Miller

Larner College of Medicine Fourth Year Advanced Integration Teaching/Scholarly Projects

BACKGROUND: The axonal subtype of Charcot-Marie-Tooth (CMT2A) is commonly caused by dominant mutations in MFN2, which encodes a protein involved in mitochondrial dynamics and axonal transport. Over 100 variants in MFN2 are reportedly pathogenic. MFN2 dysfunction yields heterogenous neuropathies which can include optic atrophy, dysautonomia and diaphragmatic/airway dysfunction.

CASE REPORT: A 52-year-old man presented with a 10-year history of burning forefoot dysthesias and orthostasis. His examination revealed reduced sensation to light touch and pinprick distally with preserved strength and reflexes. NCS/EMG demonstrated mild, symmetric axonal polyneuropathy. Autonomic testing revealed orthostatic tachycardia and postganglionic sudomotor dysfunction. Laboratory evaluation for common causes …

Iranian Parents' Perceptions On Physical Activity For Their Children With Autism Spectrum Disorder During The Covid-19 Pandemic, Sarvin Salar, Justin A. Haegele, Hassan Daneshmandi

Human Movement Sciences & Special Education Faculty Publications

Purpose: The COVID-19 pandemic is a remarkable health crisis that enforced most people to stay at home and quarantine for a period of time and seems to be having negative impacts on physical activity and mental health worldwide. Autism Spectrum Disorder (ASD), is a neurodevelopmental disorder with a deficit in social interaction characteristics, relationships, and stereotyped behaviors. This study examined Iranian parents’ perceptions of physical activity for their children with ASD during the COVID-19 pandemic.

Methods: In this study, an explanatory qualitative methodology was used and data were collected via semi-structured phone interviews. The samples included 40 Iranian parents (aged …

Introducing A Real-Time Advanced Eye Movements Analysis Pipeline, Gavindya Jayawardana

Computer Science Faculty Publications

Real-Time Advanced Eye Movements Analysis Pipeline (RAEMAP) is an advanced pipeline to analyze traditional positional gaze measurements as well as advanced eye gaze measurements. The proposed implementation of RAEMAP includes real-time analysis of fixations, saccades, gaze transition entropy, and low/high index of pupillary activity. RAEMAP will also provide visualizations of fixations, fixations on AOIs, heatmaps, and dynamic AOI generation in real-time. This paper outlines the proposed architecture of RAEMAP.

Effect Of Living Arrangements On Cognitive Function In Chinese Elders: A Longitudinal Observational Study, Yanwei Lin, Qi Zhang, Tingxian Wang, Zhirong Zeng

Community & Environmental Health Faculty Publications

Objective To examine how living arrangement as a social contextual factor can affect Chinese elders’ cognitive function.

Setting and participants Our sample consists of 2486 Chinese elders from two waves (2014 and 2018) of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) that was administered in 22 of China’s 31 provinces using a multi-stage, disproportionate, purposive random sampling method. The CLHLS aims to better understand the determinants of healthy longevity in China and collects extensive data on a large population of fragile elders aged 80–112 in China.

Outcome measures Cognitive function was measured by the Mini-Mental State Examination (MMSE). Living arrangement …

Profiles And Correlates Of Language And Social Communication Differences Among Young Autistic Children, Rachel Reetzke, Vini Singh, Ji Su Hong, Calliope B. Holingue, Luther G. Kalb, Natasha N. Ludwig, Deepa Menon, Danika L. Pfeiffer, Rebecca J. Landa

Communication Disorders & Special Education Faculty Publications

Delays in early language development are characteristic of young autistic children, and one of the most recognizable first concerns that motivate parents to seek a diagnostic evaluation for their child. Although early language abilities are one of the strongest predictors of long-term outcomes, there is still much to be understood about the role of language impairment in the heterogeneous phenotypic presentation of autism. Using a personcentered, Latent Profile Analysis, we first aimed to identify distinct patterns of language and social communication ability in a clinic-based sample of 498 autistic children, ranging in age from 18 to 60 months (M = …

Stereotactic Radiosurgery For Pituitary Adenomas: A Review Of Literature, Kaynat Siddiqui, Saqib Kamran Bakhshi, Muhammad Shahzad Shamim

Section of Neurosurgery

Stereotactic radiosurgery (SRS) is a choice of treatment for pituitary adenomas (PA), particularly for residual or recurrent disease, apart from surgery. It has a progression free survival and endocrine remission rate comparable to surgery, with fewer side effects, making it an ideal tool for dealing with PA. In this review, we have discussed the role of SRS for primary as well as post-operative residual/ recurrent PA, and have assessed its safety and outcomes.

Krabbe Disease: A Personal Perspective And Hypothesis, Mohammad Rafi

Department of Neurology Faculty Papers

Introduction: Krabbe disease (KD) or globoid cell leukodystrophy (GLD) is one of the lysosomal disorders affecting central and peripheral nervous systems (CNS and PNS). It is caused by mutations on the galactocerebrosidase (GALC) gene. Affected individuals accumulate undegraded substrates and suffer from neuroinflammation. Methods: Hematopoietic stem cell transplantation (HSCT) has been partially successful in treating patients with KD when accomplished prior to the onset of symptoms. The success is credited to the ability of the hematopoietic stem cells in providing some GALC enzyme to the CNS and eradicating potential neuroinflammation. Combination of the HSCT with some other GALC-providing strategies has …

Radiomic Texture Feature Descriptor To Distinguish Recurrent Brain Tumor From Radiation Necrosis Using Multimodal Mri, M. S. Sadique, A. Temtam, E. Lappinen, K. M. Iftekharuddin

Electrical & Computer Engineering Faculty Publications

Despite multimodal aggressive treatment with chemo-radiation-therapy, and surgical resection, Glioblastoma Multiforme (GBM) may recur which is known as recurrent brain tumor (rBT), There are several instances where benign and malignant pathologies might appear very similar on radiographic imaging. One such illustration is radiation necrosis (RN) (a moderately benign impact of radiation treatment) which are visually almost indistinguishable from rBT on structural magnetic resonance imaging (MRI). There is hence a need for identification of reliable non-invasive quantitative measurements on routinely acquired brain MRI scans: pre-contrast T1-weighted (T1), post-contrast T1-weighted (T1Gd), T2-weighted (T2), and T2 Fluid Attenuated Inversion Recovery (FLAIR) that can …

Uncertainty Estimation In Classification Of Mgnt Using Radiogenomics For Glioblastoma Patients, W. Farzana, Z. A. Shboul, A. Temtam, K. M. Iftekharuddin

Electrical & Computer Engineering Faculty Publications

Glioblastoma Multiforme (GBM) is one of the most malignant brain tumors among all high-grade brain cancers. Temozolomide (TMZ) is the first-line chemotherapeutic regimen for glioblastoma patients. The methylation status of the O6-methylguanine-DNA-methyltransferase (MGMT) gene is a prognostic biomarker for tumor sensitivity to TMZ chemotherapy. However, the standardized procedure for assessing the methylation status of MGMT is an invasive surgical biopsy, and accuracy is susceptible to resection sample and heterogeneity of the tumor. Recently, radio-genomics which associates radiological image phenotype with genetic or molecular mutations has shown promise in the non-invasive assessment of radiotherapeutic treatment. This study proposes a machine-learning framework …

Accuracy Of The Australian National Subacute And Nonacute Patient Classification In Predicting Rehabilitation Length Of Stay For Stroke Survivors Who Are ≥65 Years Of Age And Have Lateropulsion, Jessica Nolan, Erin Godecke, Katrina Spilsbury, Andy Wu, Barbara Singer

IHR Papers and Journal Articles

Background

Lateropulsion is a common impairment after stroke. Regardless of stroke severity, functional recovery is slower in people with lateropulsion, resulting in requirement for longer rehabilitation duration. In Australia, inpatient rehabilitation funding is determined via the Australian National Sub-Acute and Non-Acute Patient Classification (AN-SNAP). AN-SNAP class is determined using age, diagnosis, weighted Functional Independence Measure (FIM) motor score, and FIM cognitive score.

Objectives

To explore accuracy of the AN-SNAP to predict length of stay (LOS) for people with poststroke lateropulsion.

Methods

A retrospective database audit was undertaken. AN-SNAP predicted LOS for each participant was calculated based on 2019 calendar year …

Role Of Micrornas In Non-Functioning Pituitary Adenoma, Mehak Ismail Rajani, Yumna Mirza, Rohan Advani, Syed Muhammad Adnan Ali, Ather Enam

Centre for Innovation in Medical Education

Non-functioning pituitary adenomas account for 30% of anterior pituitary tumours. Based on their inability to secrete hormones, these are often diagnosed incidentally or due to pressure symptoms. Understanding the pathogenesis of these adenomas can provide insight into factors leading to its progression and serving as biomarkers for early recognition. A literature search was performed in the current narrative review for articles published in PubMed for the last 10 years till January 2020 on micro-ribonucleic acid involved in the pathogenesis of non-functioning pituitary adenomas. Of the 478 articles found, 21(4.4%) were filtered. In total, 106 micro-ribonucleic acids were identified, 25(23.5%) of …