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Articles 21541 - 21570 of 76838

Full-Text Articles in Medical Specialties

Ablation Of Accessory Pathway From Right Atrial Appendage To Anatomic Left Ventricle In L-Transposition Of The Great Arteries, Shree Lata Radhakrishnan, Robert O. Drutel, Cody M. Williams, Raman Danrad, Kelly K. Gajewski, Paul A. Lelorier Dec 2023

Ablation Of Accessory Pathway From Right Atrial Appendage To Anatomic Left Ventricle In L-Transposition Of The Great Arteries, Shree Lata Radhakrishnan, Robert O. Drutel, Cody M. Williams, Raman Danrad, Kelly K. Gajewski, Paul A. Lelorier

School of Medicine Faculty Publications

No abstract provided.


Detection Of Prions In The Urine Of Patients Affected By Sporadic Creutzfeldt-Jakob Disease, M Talke Dec 2023

Detection Of Prions In The Urine Of Patients Affected By Sporadic Creutzfeldt-Jakob Disease, M Talke

Faculty, Staff and Student Publications

Objective

Currently, it is unknown whether infectious prions are present in peripheral tissues and biological fluids of patients affected by sporadic Creutzfeldt–Jakob disease (sCJD), the most common prion disorder in humans. This represents a potential risk for inter‐individual prion infection. The main goal of this study was to evaluate the presence of prions in urine of patients suffering from the major subtypes of sCJD.

Methods

Urine samples from sCJD patients spanning the six major subtypes were tested. As controls, we used urine samples from people affected by other neurological or neurodegenerative diseases as well as healthy controls. These samples were …


Microstructural Alterations Of Major Thalamic Nuclei In The Chronic Pediatric Spinal Cord Injured Population, K. Kang, K. Fleming, A. Sathe, J. Muller, J. Harrop, D. Middleton, J. Heller, A. Sharan, F. Mohamed, L. Krisa, M. Alizadeh Dec 2023

Microstructural Alterations Of Major Thalamic Nuclei In The Chronic Pediatric Spinal Cord Injured Population, K. Kang, K. Fleming, A. Sathe, J. Muller, J. Harrop, D. Middleton, J. Heller, A. Sharan, F. Mohamed, L. Krisa, M. Alizadeh

Department of Radiology Faculty Papers

BACKGROUND: The brain undergoes reorganization following spinal cord injury (SCI), but little is known about how the thalamus is affected in pediatric SCIs.

PURPOSE: To characterize microstructural alterations in the thalamus after SCI with diffusion tensor imaging (DTI) metrics.

METHODS: 18 pediatric participants with chronic SCI (8-20 years) were stratified using the American Spinal Injury Association Impairment Scale (AIS) into groups: A, B, and C/D. DTI of the brain used a 3 T Siemens Verio MRI using the parameters: 20 directions, number of averages = 3, b = 1000 s/mm

DATA ANALYSIS: DTI metrics were acquired by superimposing the AAL3 …


Decreasing Surgical Complications In Diabetic Patients, Bandana Mahato Dec 2023

Decreasing Surgical Complications In Diabetic Patients, Bandana Mahato

DNP Qualifying Manuscripts

Executive Summary

Objective: This manuscript aims to determine if controlling diabetes prior to undergoing low back surgery could decrease complications and disability.

Contexts: Despite the overwhelming information on the complications of uncontrolled diabetes, patients continue to have elevated HgA1C before having surgery. Furthermore, there is a plethora of data showing uncontrolled diabetic patients will have higher complications after surgery, yet patients continue to have elective surgery despite having unchecked diabetes. There are no clear guidelines for primary care providers or surgeons on when they should allow patients to have elective surgery. Therefore, it is vital that HgA1c needs to be …


1756 Evaluating The Impact Of Prophylactic Intrathecal Chemotherapy In Diffuse Large B Cell Lymphoma (Dlbcl) Patients With High Central Nervous System International Prognostic Index (Cns-Ipi) Scores: A Comprehensive Review And Meta-Analysis, Kadhim Al-Banaa, Alfarooq Alshaikhli, Shyam Poudel, Shiva Shrotria, Can Wang, Paul Hanona, Swathi Gopishetty, Precious Idogun, Daniel Ezekwudo, Ishmael Jaiyesimi Dec 2023

1756 Evaluating The Impact Of Prophylactic Intrathecal Chemotherapy In Diffuse Large B Cell Lymphoma (Dlbcl) Patients With High Central Nervous System International Prognostic Index (Cns-Ipi) Scores: A Comprehensive Review And Meta-Analysis, Kadhim Al-Banaa, Alfarooq Alshaikhli, Shyam Poudel, Shiva Shrotria, Can Wang, Paul Hanona, Swathi Gopishetty, Precious Idogun, Daniel Ezekwudo, Ishmael Jaiyesimi

Conference Presentation Abstracts

No abstract provided.


Diet And Nutrition In Inflammatory Bowel Disease: A Review Of The Literature, Scott Manski, Nicholas Noverati, Tatiana Policarpo, Emily Rubin, Raina Shivashankar Dec 2023

Diet And Nutrition In Inflammatory Bowel Disease: A Review Of The Literature, Scott Manski, Nicholas Noverati, Tatiana Policarpo, Emily Rubin, Raina Shivashankar

Division of Gastroenterology and Hepatology Faculty Papers

Diet is thought to contribute to the development of inflammatory bowel disease (IBD) and may act as a mediator of inflammation in patients with IBD. Patients commonly associate their diet with symptoms and inquire about dietary modifications to manage their IBD. Without clinical guidelines and well-established nutritional data, healthcare providers managing patients with IBD may find it difficult to provide recommendations. Strong evidence for enteral nutrition, particularly in the pediatric population, has been established in Crohn's disease (CD) as a therapeutic option. Enteral nutrition may also serve as an adjunct to an exclusion diet. Recent studies such as the randomized …


The Dna Glycosylase Neil2 Is Protective During Sars-Cov-2 Infection, Nisha Tapryal, Anirban Chakraborty, Kaushik Saha, Azharul Islam, Lang Pan, Koa Hosoki, Ibrahim M Sayed, Jason M Duran, Joshua Alcantara, Vanessa Castillo, Courtney Tindle, Altaf H Sarker, Maki Wakamiya, Victor J Cardenas, Gulshan Sharma, Laura E Crotty Alexander, Sanjiv Sur, Debashis Sahoo, Gourisankar Ghosh, Soumita Das, Pradipta Ghosh, Istvan Boldogh, Tapas K Hazra Dec 2023

The Dna Glycosylase Neil2 Is Protective During Sars-Cov-2 Infection, Nisha Tapryal, Anirban Chakraborty, Kaushik Saha, Azharul Islam, Lang Pan, Koa Hosoki, Ibrahim M Sayed, Jason M Duran, Joshua Alcantara, Vanessa Castillo, Courtney Tindle, Altaf H Sarker, Maki Wakamiya, Victor J Cardenas, Gulshan Sharma, Laura E Crotty Alexander, Sanjiv Sur, Debashis Sahoo, Gourisankar Ghosh, Soumita Das, Pradipta Ghosh, Istvan Boldogh, Tapas K Hazra

Faculty, Staff and Students Publications

SARS-CoV-2 infection-induced aggravation of host innate immune response not only causes tissue damage and multiorgan failure in COVID-19 patients but also induces host genome damage and activates DNA damage response pathways. To test whether the compromised DNA repair capacity of individuals modulates the severity of COVID-19 infection, we analyze DNA repair gene expression in publicly available patient datasets and observe a lower level of the DNA glycosylase NEIL2 in the lungs of severely infected COVID-19 patients. This observation of lower NEIL2 levels is further validated in infected patients, hamsters and ACE2 receptor-expressing human A549 (A549-ACE2) cells. Furthermore, delivery of recombinant …


Sirtuin 6 Activation Rescues The Age-Related Decline In Dna Damage Repair In Primary Human Chondrocytes, Michaela E. Copp, Jacqueline Shine, Hannon L. Brown, Kirti R. Nimmala, Oliver B. Hansen, Susan Chubinskaya, John A. Collins, Richard F. Loeser, Brian O. Diekman Dec 2023

Sirtuin 6 Activation Rescues The Age-Related Decline In Dna Damage Repair In Primary Human Chondrocytes, Michaela E. Copp, Jacqueline Shine, Hannon L. Brown, Kirti R. Nimmala, Oliver B. Hansen, Susan Chubinskaya, John A. Collins, Richard F. Loeser, Brian O. Diekman

Department of Orthopaedic Surgery Faculty Papers

While advanced age is widely recognized as the greatest risk factor for osteoarthritis (OA), the biological mechanisms behind this connection remain unclear. Previous work has demonstrated that chondrocytes from older cadaveric donors have elevated levels of DNA damage as compared to chondrocytes from younger donors. The purpose of this study was to determine whether a decline in DNA repair efficiency is one explanation for the accumulation of DNA damage with age, and to quantify the improvement in repair with activation of Sirtuin 6 (SIRT6). After acute damage with irradiation, DNA repair was shown to be more efficient in chondrocytes from …


Capacity Assessment And Spatial Analysis Of Cervical Cancer Services In The Gambia, Meghan E Mali, Ousman Sanyang, Katherine L Harris, Justin Sorensen, Mustapha Bittaye, Jonathan Nellermoe, Raymond R Price, Edward K Sutherland Dec 2023

Capacity Assessment And Spatial Analysis Of Cervical Cancer Services In The Gambia, Meghan E Mali, Ousman Sanyang, Katherine L Harris, Justin Sorensen, Mustapha Bittaye, Jonathan Nellermoe, Raymond R Price, Edward K Sutherland

Faculty, Staff and Student Publications

Background

Cervical cancer is the most common cancer and the leading cause of cancer-related death in Gambian women. The Gambian Ministry of Health is striving to improve access to screening, diagnostic, and treatment services for cervical cancer, but comprehensive data on currently available services is limited making it challenging to appropriately prioritize the ideal next steps for expanding care. This study aims to describe the current services available for the prevention, screening, and treatment of cervical cancer in The Gambia and provide suggestions for expanding geographic access to care.

Methods

A survey aimed at assessing the availability of key cervical …


Fully-Automated, Ct-Only Gtv Contouring For Palliative Head And Neck Radiotherapy, Skylar S Gay, Carlos E Cardenas, Callistus Nguyen, Tucker J Netherton, Cenji Yu, Yao Zhao, Stephen Skett, Tina Patel, Delali Adjogatse, Teresa Guerrero Urbano, Komeela Naidoo, Beth M Beadle, Jinzhong Yang, Ajay Aggarwal, Laurence E Court Dec 2023

Fully-Automated, Ct-Only Gtv Contouring For Palliative Head And Neck Radiotherapy, Skylar S Gay, Carlos E Cardenas, Callistus Nguyen, Tucker J Netherton, Cenji Yu, Yao Zhao, Stephen Skett, Tina Patel, Delali Adjogatse, Teresa Guerrero Urbano, Komeela Naidoo, Beth M Beadle, Jinzhong Yang, Ajay Aggarwal, Laurence E Court

Faculty, Staff and Student Publications

Planning for palliative radiotherapy is performed without the advantage of MR or PET imaging in many clinics. Here, we investigated CT-only GTV delineation for palliative treatment of head and neck cancer. Two multi-institutional datasets of palliative-intent treatment plans were retrospectively acquired: a set of 102 non-contrast-enhanced CTs and a set of 96 contrast-enhanced CTs. The nnU-Net auto-segmentation network was chosen for its strength in medical image segmentation, and five approaches separately trained: (1) heuristic-cropped, non-contrast images with a single GTV channel, (2) cropping around a manually-placed point in the tumor center for non-contrast images with a single GTV channel, (3) …


C-Case 2023: Promoting Excellence In Surgical Education: Canadian Conference For The Advancement Of Surgical Education, Oct. 12-13, 2023, Montréal, Quebec, Jeffrey Sioufi, Brandon Hall, Ryan Antel, Sarah Moussa, Mathushan Subasri, Mustafa Fakih, Nehal Islam, Reggie C. Hamdy, Sonaina Chopra, Karim Damji Dec 2023

C-Case 2023: Promoting Excellence In Surgical Education: Canadian Conference For The Advancement Of Surgical Education, Oct. 12-13, 2023, Montréal, Quebec, Jeffrey Sioufi, Brandon Hall, Ryan Antel, Sarah Moussa, Mathushan Subasri, Mustafa Fakih, Nehal Islam, Reggie C. Hamdy, Sonaina Chopra, Karim Damji

Department of Ophthalmology & Visual Sciences

No abstract provided.


Preoperative Computed Tomography Scan In Distal Radius Fractures And The Effect On Preoperative Planning, Adam L. Haydel, Ryan C. Roubion, Cristina T. Graphia, Corinne E. Cloud, Claudia Leonardi, Christopher E. Marrero Dec 2023

Preoperative Computed Tomography Scan In Distal Radius Fractures And The Effect On Preoperative Planning, Adam L. Haydel, Ryan C. Roubion, Cristina T. Graphia, Corinne E. Cloud, Claudia Leonardi, Christopher E. Marrero

School of Medicine Faculty Publications

Purpose: It is unclear whether computed tomography (CT) scans alter the surgical plan when ordered before surgery for fixation of intra-articular distal radius fractures (DRFs). The purpose of this study was to determine whether a preoperative CT scan alters the planned approach (PA) or planned fixation strategy (PFS) for open reduction internal fixation of intra-articular DRFs. Methods: Radiology records were retrospectively reviewed by one trauma surgeon and two hand surgeons for 33 intra-articular DRFs that met the inclusion criteria and previously underwent open reduction internal fixation. Surgeons were initially provided only preoperative radiographs; they were asked for their PA and …


Exosome Shedding Is Concordant With Objective Treatment Response Rate And Stratifies Time To Progression In Treatment Naïve, Non-Resectable Hepatocellular Carcinoma, Kelley G. Núñez, Dorota Wyczechowska, Mina Hibino, Tyler Sandow, Juan Gimenez, Ali R. Koksal, Yucel Aydin, Srikanta Dash, Ari J. Cohen, Paul T. Thevenot Dec 2023

Exosome Shedding Is Concordant With Objective Treatment Response Rate And Stratifies Time To Progression In Treatment Naïve, Non-Resectable Hepatocellular Carcinoma, Kelley G. Núñez, Dorota Wyczechowska, Mina Hibino, Tyler Sandow, Juan Gimenez, Ali R. Koksal, Yucel Aydin, Srikanta Dash, Ari J. Cohen, Paul T. Thevenot

School of Medicine Faculty Publications

Translational strategies to characterize and monitor extracellular vesicles such as exosome (EX) shedding and the clinical impact of this data within hepatocellular carcinoma (HCC) remains unclear. In this study, EX shedding was assessed in early-stage HCC and evaluated as a stratification factor for time to progression (TTP) following first-cycle liver-directed therapy (LDT). Plasma EXs were isolated from HCC patients undergoing LDT using ultracentrifugation. Purified EXs were stained using markers CD9 and CD63 and quantified using an ImageStreamX flow cytometer. Circulating EXs expressing CD9 were isolated at 10-fold higher levels compared to CD63. The intensity of CD9+ EX shedding following LDT …


Novel Sox10 Indel Mutations Drive Schwannomas Through Impaired Transactivation Of Myelination Gene Programs, Erik A Williams, Ajay Ravindranathan, Rohit Gupta, Nicholas O Stevers, Abigail K Suwala, Chibo Hong, Somang Kim, Jimmy Bo Yuan, Jasper Wu, Jairo Barreto, Calixto-Hope G Lucas, Emily Chan, Melike Pekmezci, Philip E Leboit, Thaddeus Mully, Arie Perry, Andrew Bollen, Jessica Van Ziffle, W Patrick Devine, Alyssa T Reddy, Nalin Gupta, Kristen M Basnet, Robert J B Macaulay, Patrick Malafronte, Han Lee, William H Yong, Kevin Jon Williams, Tareq A Juratli, Douglas A Mata, Richard S P Huang, Matthew C Hiemenz, Dean C Pavlick, Garrett M Frampton, Tyler Janovitz, Jeffrey S Ross, Susan M Chang, Mitchel S Berger, Line Jacques, Jun S Song, Joseph F Costello, David A Solomon Dec 2023

Novel Sox10 Indel Mutations Drive Schwannomas Through Impaired Transactivation Of Myelination Gene Programs, Erik A Williams, Ajay Ravindranathan, Rohit Gupta, Nicholas O Stevers, Abigail K Suwala, Chibo Hong, Somang Kim, Jimmy Bo Yuan, Jasper Wu, Jairo Barreto, Calixto-Hope G Lucas, Emily Chan, Melike Pekmezci, Philip E Leboit, Thaddeus Mully, Arie Perry, Andrew Bollen, Jessica Van Ziffle, W Patrick Devine, Alyssa T Reddy, Nalin Gupta, Kristen M Basnet, Robert J B Macaulay, Patrick Malafronte, Han Lee, William H Yong, Kevin Jon Williams, Tareq A Juratli, Douglas A Mata, Richard S P Huang, Matthew C Hiemenz, Dean C Pavlick, Garrett M Frampton, Tyler Janovitz, Jeffrey S Ross, Susan M Chang, Mitchel S Berger, Line Jacques, Jun S Song, Joseph F Costello, David A Solomon

Faculty, Staff and Student Publications

BACKGROUND: Schwannomas are common peripheral nerve sheath tumors that can cause severe morbidity given their stereotypic intracranial and paraspinal locations. Similar to many solid tumors, schwannomas and other nerve sheath tumors are primarily thought to arise due to aberrant hyperactivation of the RAS growth factor signaling pathway. Here, we sought to further define the molecular pathogenesis of schwannomas.

METHODS: We performed comprehensive genomic profiling on a cohort of 96 human schwannomas, as well as DNA methylation profiling on a subset. Functional studies including RNA sequencing, chromatin immunoprecipitation-DNA sequencing, electrophoretic mobility shift assay, and luciferase reporter assays were performed in a …


Aged And Induced-Premature Ovarian Failure Mouse Models Affect Diestrus Profile And Ovarian Features, Ana Carolina Zucon Bacelar, Nataira Regina Momesso, Felipe Haddad Martim Pederro, Alaíde Gonçalves, Edilson Ervolino, Antonio Hernandes Chaves-Neto, Cláudia Cristina Biguetti, Mariza Akemi Matsumoto Dec 2023

Aged And Induced-Premature Ovarian Failure Mouse Models Affect Diestrus Profile And Ovarian Features, Ana Carolina Zucon Bacelar, Nataira Regina Momesso, Felipe Haddad Martim Pederro, Alaíde Gonçalves, Edilson Ervolino, Antonio Hernandes Chaves-Neto, Cláudia Cristina Biguetti, Mariza Akemi Matsumoto

School of Podiatric Medicine Publications

Sex hormones exert a wide influence on several systems of the human body, especially in women, who undergo intense changes in the trans and postmenopausal periods. Different experimental models are used to mimic these conditions; however, the impact on hormonal profile may be different. This study aimed to analyze and compare vaginal cytology of different post-estropausal mice models, along with their microscopical ovarian features. Forty-six C57BL/6J female mice with the ages of 4, 6 and 18 months at the beginning of the experiment, weighing about 25–28 grams, constituted five groups: NC–(negative control) animals with no treatment, OVX-SHAM—sham ovariectomized, OVX–ovariectomized, VCD–medicated …


Improving Access To Early Interventions For Prediabetic Patients, Kimberleigh M. Telling Dec 2023

Improving Access To Early Interventions For Prediabetic Patients, Kimberleigh M. Telling

Doctor of Nursing Practice Projects

Approximately 88 million Americans, or nearly one-third of the population, have prediabetes. This condition has a high rate of progression to type 2 diabetes, reaching 70%. However, early identification, diagnosis, and participation in lifestyle interventions can effectively reduce the risk and promote euglycemia. Regrettably, 85% of those with prediabetes are unaware. The goal of this quantitative quality improvement project was to enhance the use of the prediabetes diagnosis code by primary care providers, who play a crucial role in preventing type 2 diabetes. The purpose was to improve access to early intervention for individuals with prediabetes, following the guidelines of …


Therapeutic Effect Of Echinococcus Granulosus Cyst Fluid On Bacterial Sepsis In Mice, Shuying Wang, Donghui Jiang, Feifei Huang, Yayun Qian, Meitao Qi, Huihui Li, Xiaoli Wang, Zhi Wang, Kaigui Wang, Yin Wang, Pengfei Du, Bin Zhan, Rui Zhou, Liang Chu, Xiaodi Yang Dec 2023

Therapeutic Effect Of Echinococcus Granulosus Cyst Fluid On Bacterial Sepsis In Mice, Shuying Wang, Donghui Jiang, Feifei Huang, Yayun Qian, Meitao Qi, Huihui Li, Xiaoli Wang, Zhi Wang, Kaigui Wang, Yin Wang, Pengfei Du, Bin Zhan, Rui Zhou, Liang Chu, Xiaodi Yang

Faculty, Staff and Students Publications

BACKGROUND: The primary pathophysiological process of sepsis is to stimulate a massive release of inflammatory mediators to trigger systemic inflammatory response syndrome (SIRS), the major cause of multi-organ dysfunction and death. Like other helminths, Echinococcus granulosus induces host immunomodulation. We sought to determine whether E. granulosus cyst fluid (EgCF) displays a therapeutic effect on sepsis-induced inflammation and tissue damage in a mouse model.

METHODS: The anti-inflammatory effects of EgCF were determined by in vitro culture with bone marrow-derived macrophages (BMDMs) and in vivo treatment of BALB/C mice with cecal ligation and puncture (CLP)-induced sepsis. The macrophage phenotypes were determined by …


Nicotinic Acetylcholine Receptor Signaling Maintains Epithelial Barrier Integrity, Nadja S Katheder, Kristen C Browder, Diana Chang, Ann De Maziere, Pekka Kujala, Suzanne Van Dijk, Judith Klumperman, Tzu-Chiao Lu, Hongjie Li, Zijuan Lai, Dewakar Sangaraju, Heinrich Jasper Dec 2023

Nicotinic Acetylcholine Receptor Signaling Maintains Epithelial Barrier Integrity, Nadja S Katheder, Kristen C Browder, Diana Chang, Ann De Maziere, Pekka Kujala, Suzanne Van Dijk, Judith Klumperman, Tzu-Chiao Lu, Hongjie Li, Zijuan Lai, Dewakar Sangaraju, Heinrich Jasper

Faculty, Staff and Students Publications

Disruption of epithelial barriers is a common disease manifestation in chronic degenerative diseases of the airways, lung, and intestine. Extensive human genetic studies have identified risk loci in such diseases, including in chronic obstructive pulmonary disease (COPD) and inflammatory bowel diseases. The genes associated with these loci have not fully been determined, and functional characterization of such genes requires extensive studies in model organisms. Here, we report the results of a screen in


Phenotyping Emt And Met Cellular States In Lung Cancer Patient Liquid Biopsies At A Personalized Level Using Mass Cytometry, Loukia G Karacosta, Danny Pancirer, Jordan S Preiss, Jalen A Benson, Winston Trope, Joseph B Shrager, Arthur Wai Sung, Joel W Neal, Sean C Bendall, Heather Wakelee, Sylvia K Plevritis Dec 2023

Phenotyping Emt And Met Cellular States In Lung Cancer Patient Liquid Biopsies At A Personalized Level Using Mass Cytometry, Loukia G Karacosta, Danny Pancirer, Jordan S Preiss, Jalen A Benson, Winston Trope, Joseph B Shrager, Arthur Wai Sung, Joel W Neal, Sean C Bendall, Heather Wakelee, Sylvia K Plevritis

Faculty, Staff and Student Publications

Malignant pleural effusions (MPEs) can be utilized as liquid biopsy for phenotyping malignant cells and for precision immunotherapy, yet MPEs are inadequately studied at the single-cell proteomic level. Here we leverage mass cytometry to interrogate immune and epithelial cellular profiles of primary tumors and pleural effusions (PEs) from early and late-stage non-small cell lung cancer (NSCLC) patients, with the goal of assessing epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET) states in patient specimens. By using the EMT-MET reference map PHENOSTAMP, we observe a variety of EMT states in cytokeratin positive (CK+) cells, and report for the first time MET-enriched CK+ …


Identification Of Ct-Based Non-Invasive Radiomic Biomarkers For Overall Survival Prediction In Oral Cavity Squamous Cell Carcinoma, Xiao Ling, Gregory S. Alexander, Jason Molitoris, Jinhyuk Choi, Lisa Schumaker, Ranee Mehra, Daria A. Gaykalova, Lei Ren Dec 2023

Identification Of Ct-Based Non-Invasive Radiomic Biomarkers For Overall Survival Prediction In Oral Cavity Squamous Cell Carcinoma, Xiao Ling, Gregory S. Alexander, Jason Molitoris, Jinhyuk Choi, Lisa Schumaker, Ranee Mehra, Daria A. Gaykalova, Lei Ren

Department of Radiation Oncology Faculty Papers

This study addresses the limited non-invasive tools for Oral Cavity Squamous Cell Carcinoma (OSCC) survival prediction by identifying Computed Tomography (CT)-based biomarkers to improve prognosis prediction. A retrospective analysis was conducted on data from 149 OSCC patients, including CT radiomics and clinical information. An ensemble approach involving correlation analysis, score screening, and the Sparse-L1 algorithm was used to select functional features, which were then used to build Cox Proportional Hazards models (CPH). Our CPH achieved a 0.70 concordance index in testing. The model identified two CT-based radiomics features, Gradient-Neighboring-Gray-Tone-Difference-Matrix-Strength (GNS) and normalized-Wavelet-LLL-Gray-Level-Dependence-Matrix-Large-Dependence-High-Gray-Level-Emphasis (HLE), as well as stage and alcohol usage, …


Perioperative Quality Initiative (Poqi) Consensus Statement On Perioperative Assessment Of Right Ventricular Function, Stephanie O Ibekwe, Jean Deschamps, Michael P W Grocott, Yafen Liang, Andrew Shaw, Tjorvi E Perry Dec 2023

Perioperative Quality Initiative (Poqi) Consensus Statement On Perioperative Assessment Of Right Ventricular Function, Stephanie O Ibekwe, Jean Deschamps, Michael P W Grocott, Yafen Liang, Andrew Shaw, Tjorvi E Perry

Faculty, Staff and Student Publications

BACKGROUND: The right ventricle (RV) plays a central role in the maintenance of effective cardiac pump function. Despite overwhelming evidence that perioperative RV dysfunction (RVD) and failure (RVF) are associated with poor clinical outcomes, there are very few published recommendations or guidelines for comprehensive, evidence-based RV assessment on the risk of developing either during the perioperative period.

MAIN TEXT: To address this gap, the Perioperative Quality Initiative-IX (POQI-IX) investigators group, comprised of clinical experts in anesthesiology, cardiovascular surgery, internal medicine, critical care medicine, and advanced practice nursing, has developed a consensus statement based on current literature, published society recommendations, and …


Effects Of Independent Versus Dependent Stressful Life Events On Major Symptom Domains Of Schizophrenia, Yizhou Ma, Joshua Chiappelli, Mark D Kvarta, Heather Bruce, Andrew Van Der Vaart, Eric L Goldwaser, Xiaoming Du, Hemalatha Sampath, Samantha Lightner, Jane Endres, Akram Yusuf, Alexa Yuen, Samantha Narvaez, Danny Campos-Saravia, Peter Kochunov, L Elliot Hong Dec 2023

Effects Of Independent Versus Dependent Stressful Life Events On Major Symptom Domains Of Schizophrenia, Yizhou Ma, Joshua Chiappelli, Mark D Kvarta, Heather Bruce, Andrew Van Der Vaart, Eric L Goldwaser, Xiaoming Du, Hemalatha Sampath, Samantha Lightner, Jane Endres, Akram Yusuf, Alexa Yuen, Samantha Narvaez, Danny Campos-Saravia, Peter Kochunov, L Elliot Hong

Faculty, Staff and Student Publications

We evaluated two models to link stressful life events (SLEs) with the psychopathology of schizophrenia spectrum disorders (SSD). We separated SLEs into independent (iSLEs, unlikely influenced by one's behavior) and dependent (dSLEs, likely influenced by one's behavior). Stress-diathesis and stress generation models were evaluated for the relationship between total, i- and d- SLEs and the severity of positive, negative, and depressive symptoms in participants with SSD. Participants with SSD (n = 286; 196 males; age = 37.5 ± 13.5 years) and community controls (n = 121; 83 males; 35.4 ± 13.9 years) completed self-report of lifetime negative total, i- and …


Evaluating Clinical Outcomes In Patients Being Treated Exclusively Via Telepsychiatry: Retrospective Data Analysis, Cheryl Person, Nicola O'Connor, Lucy Koehler, Kartik Venkatachalam, Georgia Gaveras Dec 2023

Evaluating Clinical Outcomes In Patients Being Treated Exclusively Via Telepsychiatry: Retrospective Data Analysis, Cheryl Person, Nicola O'Connor, Lucy Koehler, Kartik Venkatachalam, Georgia Gaveras

Faculty, Staff and Student Publications

BACKGROUND: Depression and anxiety are highly prevalent conditions in the United States. Despite the availability of suitable therapeutic options, limited access to high-quality psychiatrists represents a major barrier to treatment. Although telepsychiatry has the potential to improve access to psychiatrists, treatment efficacy in the telepsychiatry model remains unclear.

OBJECTIVE: Our primary objective was to determine whether there was a clinically meaningful change in 1 of 2 validated outcome measures of depression and anxiety-the Patient Health Questionnaire-8 (PHQ-8) or the Generalized Anxiety Disorder-7 (GAD-7)-after receiving at least 8 weeks of treatment in an outpatient telepsychiatry setting.

METHODS: We included treatment-seeking patients …


Rad54l2-Mediated Dna Damage Avoidance Pathway Specifically Preserves Genome Integrity In Response To Topoisomerase 2 Poisons, Huimin Zhang, Yun Xiong, Yilun Sun, Jeong-Min Park, Dan Su, Xu Feng, Sarah Keast, Mengfan Tang, Min Huang, Chao Wang, Mrinal Srivastava, Chang Yang, Dandan Zhu, Zhen Chen, Siting Li, Ling Yin, Yves Pommier, Junjie Chen Dec 2023

Rad54l2-Mediated Dna Damage Avoidance Pathway Specifically Preserves Genome Integrity In Response To Topoisomerase 2 Poisons, Huimin Zhang, Yun Xiong, Yilun Sun, Jeong-Min Park, Dan Su, Xu Feng, Sarah Keast, Mengfan Tang, Min Huang, Chao Wang, Mrinal Srivastava, Chang Yang, Dandan Zhu, Zhen Chen, Siting Li, Ling Yin, Yves Pommier, Junjie Chen

Faculty, Staff and Student Publications

Type II topoisomerases (TOP2) form transient TOP2 cleavage complexes (TOP2ccs) during their catalytic cycle to relieve topological stress. TOP2ccs are covalently linked TOP2-DNA intermediates that are reversible but can be trapped by TOP2 poisons. Trapped TOP2ccs block transactions on DNA and generate genotoxic stress, which are the mechanisms of action of TOP2 poisons. How cells avoid TOP2cc accumulation remains largely unknown. In this study, we uncovered RAD54 like 2 (RAD54L2) as a key factor that mediates a TOP2-specific DNA damage avoidance pathway. RAD54L2 deficiency conferred unique sensitivity to treatment with TOP2 poisons. RAD54L2 interacted with TOP2A/TOP2B and ZATT/ZNF451 and promoted …


Ewsr1::Atf1 Orchestrates The Clear Cell Sarcoma Transcriptome In Human Tumors And A Mouse Genetic Model, Benjamin B Ozenberger, Li Li, Emily R Wilson, Alexander J Lazar, Jared J Barrott, Kevin B Jones Dec 2023

Ewsr1::Atf1 Orchestrates The Clear Cell Sarcoma Transcriptome In Human Tumors And A Mouse Genetic Model, Benjamin B Ozenberger, Li Li, Emily R Wilson, Alexander J Lazar, Jared J Barrott, Kevin B Jones

Faculty, Staff and Student Publications

Clear cell sarcoma (CCS) is a rare, aggressive malignancy that most frequently arises in the soft tissues of the extremities. It is defined and driven by expression of one member of a family of related translocation-generated fusion oncogenes, the most common of which is EWSR1::ATF1. The EWSR1::ATF1 fusion oncoprotein reprograms transcription. However, the binding distribution of EWSR1::ATF1 across the genome and its target genes remain unclear. Here, we interrogated the genomic distribution of V5-tagged EWSR1::ATF1 in tumors it had induced upon expression in mice that also recapitulated the transcriptome of human CCS. ChIP-sequencing of V5-EWSR1::ATF1 identified previously unreported motifs …


Optical Genome Mapping Helps To Identify Bcr::Jak2 Rearrangement Arising From Cryptic Complex Chromosomal Aberrations: A Case Report And Literature Review, Neelam Vanjari, Guilin Tang, Gokce A Toruner, Wei Wang, Beenu Thakral, Ming Zhao, Bhavana J Dave, Joseph D Khoury, L Jeffrey Medeiros, Zhenya Tang Dec 2023

Optical Genome Mapping Helps To Identify Bcr::Jak2 Rearrangement Arising From Cryptic Complex Chromosomal Aberrations: A Case Report And Literature Review, Neelam Vanjari, Guilin Tang, Gokce A Toruner, Wei Wang, Beenu Thakral, Ming Zhao, Bhavana J Dave, Joseph D Khoury, L Jeffrey Medeiros, Zhenya Tang

Faculty, Staff and Student Publications

We report a case of myeloproliferative neoplasm, not otherwise specified (MPN-NOS)-transformed AML with BCR::JAK2 rearrangement. Chromosomal analysis indicated a simple abnormal karyotype 46,XY,t(7;17)(q21;q24),t(9;22)(p24;q11.2). Fluorescence in situ hybridization (FISH) using a BCR/ABL1/ASS1 probe set suggested a possible BCR rearrangement and a reflex JAK2 breakapart probe indicated JAK2 rearrangement, most likely partnered with BCR. Optical genome mapping (OGM) analysis confirmed BCR::JAK2 derived through an inv(9)(p24p13) after a t(9;22)(p13;q11.2) in this case. Due to the complexity of chromosomal aberrations, disruption and/or rearrangement of other genes such as KIF24::BCRJAK2::KIF24/UBAP1, and CDK6:SOX9 were also identified by OGM. Although the functionality and clinical …


The Defined Tlr3 Agonist, Nexavant, Exhibits Anti-Cancer Efficacy And Potentiates Anti-Pd-1 Antibody Therapy By Enhancing Immune Cell Infiltration, Seung-Hwan Lee, Young-Ho Choi, Soon Myung Kang, Min-Gyu Lee, Arnaud Debin, Eric Perouzel, Seung-Beom Hong, Dong-Ho Kim Dec 2023

The Defined Tlr3 Agonist, Nexavant, Exhibits Anti-Cancer Efficacy And Potentiates Anti-Pd-1 Antibody Therapy By Enhancing Immune Cell Infiltration, Seung-Hwan Lee, Young-Ho Choi, Soon Myung Kang, Min-Gyu Lee, Arnaud Debin, Eric Perouzel, Seung-Beom Hong, Dong-Ho Kim

Faculty, Staff and Student Publications

Nexavant was reported as an alternative to the TLR3 agonist of Poly(I:C) and its derivatives. The physicochemical properties, signaling pathways, anti-cancer effects, and mechanisms of Nexavant were investigated. The distinctive characteristics of Nexavant compared to that of Poly(I:C) were demonstrated by precise quantification, enhanced thermostability, and increased resistance to RNase A. Unlike Poly(I:C), which activates TLR3, RIG-I, and MDA5, Nexavant stimulates signaling through TLR3 and RIG-I but not through MDA5. Compared to Poly(I:C), an intratumoral Nexavant treatment led to a unique immune response, immune cell infiltration, and suppression of tumor growth in various animal cancer models. Nexavant therapy outperformed anti-PD-1 …


Social Determinants Of Health, Telehealth, And Hiv/Aids: Implications For Public Health Research And Practice In The State Of Virginia, Sonal S. Sathe, Adati Tarfa Dec 2023

Social Determinants Of Health, Telehealth, And Hiv/Aids: Implications For Public Health Research And Practice In The State Of Virginia, Sonal S. Sathe, Adati Tarfa

Virginia Journal of Public Health

Purpose: The purpose of this commentary is to assert the importance of addressing the social determinants of health to support HIV/AIDS control efforts, to describe the importance of telehealth in HIV/AIDS control, and to recommend courses of action to support HIV/AIDS control efforts within the state of Virginia.

Discussion: We provide an overview of the social determinants of health and their role in HIV/AIDS control, telehealth and its uptake within the HIV/AIDS community, and issues in Virginia facing HIV/AIDS control.

Conclusion and Recommendations: We conclude that addressing social determinants of health, especially stigma, is an important measure of HIV/AIDS control …


The Implementation Of Nurse Practitioner Residency Programs To Increase The Employment Retention Of New Graduates, Roni-Jo Panganiban Dec 2023

The Implementation Of Nurse Practitioner Residency Programs To Increase The Employment Retention Of New Graduates, Roni-Jo Panganiban

Master of Science in Nursing Family Nurse Practitioner

This review explores the effectiveness of Nurse Practitioner (NP) residency programs in addressing role strain, burnout, and retaining new graduates. It emphasizes the factors contributing to NP resignations and proposes formal residency programs to improve job satisfaction and retention rates. Research highlights benefits such as enhanced preparedness, credibility, and better patient care, advocating for increased program accessibility and funding. Additionally, the application of the theory of planned behavior underscores compliance with regulations, evidence-based practice, and environmental influences for patient safety in advanced practice registered nursing. The literature review on NP residency programs draws from six empirical articles, focusing on job …


Allergic Bronchopulmonary Aspergillosis: Radiological And Microbiological Profile Of Patients Presented In An Outpatient Pulmonary Clinic In A Developing Country, Nousheen Iqbal, Muhammad Irfan, Mustafa Bin Ali Zubairi, Maaha Ayub, Safia Awan, Kauser Jabeen, Ali Bin Sarwar Zubairi Dec 2023

Allergic Bronchopulmonary Aspergillosis: Radiological And Microbiological Profile Of Patients Presented In An Outpatient Pulmonary Clinic In A Developing Country, Nousheen Iqbal, Muhammad Irfan, Mustafa Bin Ali Zubairi, Maaha Ayub, Safia Awan, Kauser Jabeen, Ali Bin Sarwar Zubairi

Section of Pulmonary & Critical Care

There is limited data available about allergic bronchopulmonary aspergillosis (ABPA) in Pakistan. The aim of the study was to describe the radiological and microbiological profile of ABPA patients presenting to the outpatient pulmonary clinic of a tertiary care hospital in Karachi, Pakistan. A retrospective study was conducted on ABPA patients who presented to the pulmonary outpatient clinic at Aga Khan University Hospital, Karachi, Pakistan, from January 2017 to December 2019. Data was collected on microbiology and radiology features on predesigned proforma. A total of 7759 asthmatic patients presented at the outpatient pulmonology clinic during the study period. Of the 245 …