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Articles 30301 - 30330 of 77235

Full-Text Articles in Medical Specialties

Adverse Maternal, Fetal, And Newborn Outcomes Among Pregnant Women With Sars-Cov-2 Infection: An Individual Participant Data Meta-Analysis, Emily R. Smith, Erin Oakley, Gargi Wable Grandner, Kacey Ferguson, Fouzia Farooq, Yalda Afshar, Mia Ahlberg, Homa Ahmadzia, Victor Akelo, Marleen Temmerman Jan 2023

Adverse Maternal, Fetal, And Newborn Outcomes Among Pregnant Women With Sars-Cov-2 Infection: An Individual Participant Data Meta-Analysis, Emily R. Smith, Erin Oakley, Gargi Wable Grandner, Kacey Ferguson, Fouzia Farooq, Yalda Afshar, Mia Ahlberg, Homa Ahmadzia, Victor Akelo, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Introduction: Despite a growing body of research on the risks of SARS-CoV-2 infection during pregnancy, there is continued controversy given heterogeneity in the quality and design of published studies.

Methods: We screened ongoing studies in our sequential, prospective meta-analysis. We pooled individual participant data to estimate the absolute and relative risk (RR) of adverse outcomes among pregnant women with SARS-CoV-2 infection, compared with confirmed negative pregnancies. We evaluated the risk of bias using a modified Newcastle-Ottawa Scale.

Results: We screened 137 studies and included 12 studies in 12 countries involving 13 136 pregnant women.

Pregnant women with …


Understanding Maternity Care Providers’ Use Of Data In Southern Tanzania, Regine Unkels, Fadhlun Alwy Al-Beity, Zamoyoni Julius, Elibariki Mkumbo, Andrea B. Pembe, Claudia Hanson, Helle Molsted-Alvesson Jan 2023

Understanding Maternity Care Providers’ Use Of Data In Southern Tanzania, Regine Unkels, Fadhlun Alwy Al-Beity, Zamoyoni Julius, Elibariki Mkumbo, Andrea B. Pembe, Claudia Hanson, Helle Molsted-Alvesson

Obstetrics and Gynaecology, East Africa

Introduction: Health information management system data is collected for national planning and evaluation but is rarely used for healthcare improvements at subnational or facility-level in low-and-middle-income countries. Research suggests that perceived data quality and lack of feedback are contributing factors. We aimed to understand maternity care providers’ perceptions of data and how they use it, with a view to co-design interventions to improve data quality and use.

Methods: We based our research on constructivist grounded theory. We conducted 14 in-depth interviews, two focus group discussions with maternity care providers and 48 hours of observations in maternity wards to understand …


Human Immunodeficiency Virus Type 1 Rna Genital Tract Shedding After Cryotherapy For Cervical Intraepithelial Neoplasia In Western Kenya, Elkanah Omenge, Anne Bocage, Tao Liu, Peter Itsura, Philip Tonui, Kapten Muthoka, Stephen Kiptoo, Angela Caliendo, Soya Sam, Susan Cu-Uvin Jan 2023

Human Immunodeficiency Virus Type 1 Rna Genital Tract Shedding After Cryotherapy For Cervical Intraepithelial Neoplasia In Western Kenya, Elkanah Omenge, Anne Bocage, Tao Liu, Peter Itsura, Philip Tonui, Kapten Muthoka, Stephen Kiptoo, Angela Caliendo, Soya Sam, Susan Cu-Uvin

Obstetrics and Gynaecology, East Africa

Abstract :This prospective study of 39 women living with human immunodeficiency virus (HIV) on antiretroviral therapy in Western Kenya aimed to quantify genital tract HIV-1 RNA (GT-HIV RNA) shedding before and after cryotherapy for cervical intraepithelial neoplasia. Most GT-HIV RNA shedding was detected precryotherapy, suggesting that cryotherapy was not the primary cause of shedding.


Investigating The Quality Of Life For Children With Autism Spectrum Disorder Scale Using Rasch Methodology, Laura C. Chezan, Jin Liu, Ruiqin Gao, Erik Drasgow Jan 2023

Investigating The Quality Of Life For Children With Autism Spectrum Disorder Scale Using Rasch Methodology, Laura C. Chezan, Jin Liu, Ruiqin Gao, Erik Drasgow

Communication Disorders & Special Education Faculty Publications

Our purpose in this study was to provide additional psychometric evidence of the Quality of Life for Children with Autism Spectrum Disorder (QOLASD-C) scale. We used Rasch modeling to investigate the QOLASD-C functioning, the characteristics of the items comprising the scale, and the item functioning across subgroups of children with ASD based on gender and race/ethnicity. Results showed that QOLASD-C was unidimensional, met the local independence assumption, and measured quality of life (QOL). The items showed excellent fit to the model and good discriminating ability between low and high QOL. Most items showed a moderate difficulty level. No differential item …


A Novel Bayesian Spatial-Temporal Approach To Quantify Sars-Cov-2 Testing Disparities For Small Area Estimation, Cici Bauer, Xiaona Li, Kehe Zhang, Miryoung Lee, Esmeralda Guajardo, Susan Fisher-Hoch, Joseph Mccormick, Maria E Fernandez, Belinda Reininger Jan 2023

A Novel Bayesian Spatial-Temporal Approach To Quantify Sars-Cov-2 Testing Disparities For Small Area Estimation, Cici Bauer, Xiaona Li, Kehe Zhang, Miryoung Lee, Esmeralda Guajardo, Susan Fisher-Hoch, Joseph Mccormick, Maria E Fernandez, Belinda Reininger

Faculty, Staff and Student Publications

Objectives. To propose a novel Bayesian spatial–temporal approach to identify and quantify severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing disparities for small area estimation.

Methods. In step 1, we used a Bayesian inseparable space–time model framework to estimate the testing positivity rate (TPR) at geographically granular areas of the census block groups (CBGs). In step 2, we adopted a rank-based approach to compare the estimated TPR and the testing rate to identify areas with testing deficiency and quantify the number of needed tests. We used weekly SARS-CoV-2 infection and testing surveillance data from Cameron County, Texas, between March 2020 …


Subendocardial And Transmural Myocardial Ischemia: Clinical Characteristics, Prevalence, And Outcomes With And Without Revascularization, K Lance Gould, Tung Nguyen, Richard Kirkeeide, Amanda E Roby, Linh Bui, Danai Kitkungvan, Monica B Patel, Mohammad Madjid, Mary Haynie, Dejian Lai, Ruosha Li, Jagat Narula, Nils P Johnson Jan 2023

Subendocardial And Transmural Myocardial Ischemia: Clinical Characteristics, Prevalence, And Outcomes With And Without Revascularization, K Lance Gould, Tung Nguyen, Richard Kirkeeide, Amanda E Roby, Linh Bui, Danai Kitkungvan, Monica B Patel, Mohammad Madjid, Mary Haynie, Dejian Lai, Ruosha Li, Jagat Narula, Nils P Johnson

Faculty, Staff and Student Publications

BACKGROUND: Subendocardial ischemia is commonly diagnosed but not quantified by imaging.

OBJECTIVES: This study sought to define size and severity of subendocardial and transmural stress perfusion deficits, clinical associations, and outcomes.

METHODS: Regional rest-stress perfusion in mL/min/g, coronary flow reserve, coronary flow capacity (CFC), relative stress flow, subendocardial stress-to-rest ratio and stress subendocardial-to-subepicardial ratio as percentage of left ventricle were measured by positron emission tomography (PET) with rubidium Rb 82 and dipyridamole stress in serial 6,331 diagnostic PETs with prospective 10-year follow-up for major adverse cardiac events with and without revascularization.

RESULTS: Of 6,331 diagnostic PETs, 1,316 (20.7%) had severely …


Promoting Healthier Treatment Outcomes In Obese Cancer Patients Taking High Dose Methotrexate, Carly Dell'ova Jan 2023

Promoting Healthier Treatment Outcomes In Obese Cancer Patients Taking High Dose Methotrexate, Carly Dell'ova

Walden Dissertations and Doctoral Studies

Cancer and obesity rates continue to rise, creating enormous public heath burdens to the individual and at the national and global levels, reducing quality of life, and increasing spending. Moreover, the relationships between cancer and obesity are not well understood. A commonly used chemotherapy for several types of cancer is high dose methotrexate (HDMTX). Along with chemotherapy, especially at high doses, comes toxicity to specific organs and the entire body. However, limited research has been conducted on obese cancer patients as they are often excluded from clinical studies. Practitioners need to better understand how to dose these patients to provide …


Perioperative Nurses' Perceptions And Barriers To Implementing The Colorectal Surgery Care Bundle, Kaydian Kerry-Ann Grant Jan 2023

Perioperative Nurses' Perceptions And Barriers To Implementing The Colorectal Surgery Care Bundle, Kaydian Kerry-Ann Grant

Walden Dissertations and Doctoral Studies

AbstractDespite evidence that surgical care bundle usage prevents surgical site infections (SSIs) in colorectal surgeries, there is a consistent increase in SSIs. Perioperative nurses are in a unique position to provide insight into the process for colorectal surgical care bundle usage, yet little is known about how perioperative nurses view the process. The perioperative patient focused model was used in this qualitative interpretative phenomenological study to examine the perceptions of perioperative nurses regarding the use of colorectal surgery care bundle and its role in preventing SSIs in patients undergoing colon and rectal surgeries. Sixteen perioperative nurses who were members of …


Oncology Nurses, Compassion Fatigue And General Health: A Mixed-Methods Study, Michelle Rampersad Jan 2023

Oncology Nurses, Compassion Fatigue And General Health: A Mixed-Methods Study, Michelle Rampersad

Walden Dissertations and Doctoral Studies

Current literature on compassion fatigue is expansive, but there is a lack on the relationship between compassion fatigue and general health complaints in oncology nurses; how they perceive compassion fatigue and its relation to their general health. Using Pender’s health promotion model, this mixed methods study addressed how oncology nurses perceive compassion fatigue and whether a correlation exists between compassion fatigue and general health complaints. Data were collected from a sample of 55 oncology nurses through two separate Survey Monkey links. All 55 participants completed quantitative data points including a demographic questionnaire, the Professional Quality of Life 5 tool, and …


A Nursing Staff Education Module On Survivorship Care Plans In Primary Care, Janette Francis Jan 2023

A Nursing Staff Education Module On Survivorship Care Plans In Primary Care, Janette Francis

Walden Dissertations and Doctoral Studies

Survivorship care plans (SCPs) bridge the gap in the transition of care from oncology to primary care providers (PCPs) for breast cancer survivors. Despite strong recommendations for SCPs, their use remains limited. Guided by Knowles’ adult learning theory, the project focused on, first, determining whether a predeveloped staff education activity was valid using the Lynn model criteria for validation. Second, if in a rural clinic where SCP were not consistently used providers, nurses, and staff knowledge regarding the importance of SCP would increase following an educational program. An expert panel of 5 educational experts validated the educational module for appropriateness …


Factors Impacting College Students’ Receipt Of Human Papillomavirus Vaccination, Joy Yvette Payne Jan 2023

Factors Impacting College Students’ Receipt Of Human Papillomavirus Vaccination, Joy Yvette Payne

Walden Dissertations and Doctoral Studies

Less than half of U. S. students entering college have had a human papillomavirus (HPV) vaccination, placing them at risk for HPV-related cancers. This study’s purpose was to identify predictors of HPV vaccination initiation in college students. Andersen’s behavioral model of health services use was used to examine the differences in predisposing, enabling, and need factors in U.S. college students ages 18–26 years who received an initial HPV vaccination in college compared to those who never received an HPV vaccination. The study was a quantitative, cross-sectional survey design using multivariable logistic regression for data analyses. Data were collected through an …


Testing The Efficacy And Synergistic Components Of Sesamol And Black Rice Extract On Human Colon Cancer Cells, Sera Lim, Philip M. Gerk Jan 2023

Testing The Efficacy And Synergistic Components Of Sesamol And Black Rice Extract On Human Colon Cancer Cells, Sera Lim, Philip M. Gerk

UROP Posters

Purpose: Systemic treatment of colorectal cancer involves chemotherapeutic agents which elicit serious and negative side effects from the toxicity of the drug. To address this issue, we are testing dietary supplements for their efficacy against human colon cancer cell lines and also their potential synergistic effects when combined with conventional chemotherapy. Dietary supplements (specifically sesamol and black rice extract) exhibit anticancer, anti-inflammatory, and chemo-preventive properties. Meanwhile, one of the cancer resistance mechanisms is the upregulation of drug elimination mechanisms, leading to multi-drug resistance. We hypothesize that dietary compounds will act as chemo-enhancers, thus enhancing potency of the chemotherapy drug(s) on …


Autodesc: Facilitating Convenient Perusal Of Web Data Items For Blind Users, Yash Prakash, Mohan Sunkara, Hae-Na Lee, Sampath Jayarathna, Vikas Ashok Jan 2023

Autodesc: Facilitating Convenient Perusal Of Web Data Items For Blind Users, Yash Prakash, Mohan Sunkara, Hae-Na Lee, Sampath Jayarathna, Vikas Ashok

Computer Science Faculty Publications

Web data items such as shopping products, classifieds, and job listings are indispensable components of most e-commerce websites. The information on the data items are typically distributed over two or more webpages, e.g., a ‘Query-Results’ page showing the summaries of the items, and ‘Details’ pages containing full information about the items. While this organization of data mitigates information overload and visual cluttering for sighted users, it however increases the interaction overhead and effort for blind users, as back-and-forth navigation between webpages using screen reader assistive technology is tedious and cumbersome. Existing usability-enhancing solutions are unable to provide adequate support in …


Comparison Of Physics-Based Deformable Registration Methods For Image-Guided Neurosurgery, Nikos Chrisochoides, Yixun Liu, Fotis Drakopoulos, Andriy Kot, Panos Foteinos, Christos Tsolakis, Emmanuel Billias, Olivier Clatz, Nicholas Ayache, Andrey Fedorov, Alex Golby, Peter Black, Ron Kikinis Jan 2023

Comparison Of Physics-Based Deformable Registration Methods For Image-Guided Neurosurgery, Nikos Chrisochoides, Yixun Liu, Fotis Drakopoulos, Andriy Kot, Panos Foteinos, Christos Tsolakis, Emmanuel Billias, Olivier Clatz, Nicholas Ayache, Andrey Fedorov, Alex Golby, Peter Black, Ron Kikinis

Computer Science Faculty Publications

This paper compares three finite element-based methods used in a physics-based non-rigid registration approach and reports on the progress made over the last 15 years. Large brain shifts caused by brain tumor removal affect registration accuracy by creating point and element outliers. A combination of approximation- and geometry-based point and element outlier rejection improves the rigid registration error by 2.5 mm and meets the real-time constraints (4 min). In addition, the paper raises several questions and presents two open problems for the robust estimation and improvement of registration error in the presence of outliers due to sparse, noisy, and incomplete …


Detecting Deceptive Dark-Pattern Web Advertisements For Blind Screen-Reader Users, Satwick Ram Kodandaram, Mohan Sunkara, Sampath Jayarathna, Vikas Ashok Jan 2023

Detecting Deceptive Dark-Pattern Web Advertisements For Blind Screen-Reader Users, Satwick Ram Kodandaram, Mohan Sunkara, Sampath Jayarathna, Vikas Ashok

Computer Science Faculty Publications

Advertisements have become commonplace on modern websites. While ads are typically designed for visual consumption, it is unclear how they affect blind users who interact with the ads using a screen reader. Existing research studies on non-visual web interaction predominantly focus on general web browsing; the specific impact of extraneous ad content on blind users' experience remains largely unexplored. To fill this gap, we conducted an interview study with 18 blind participants; we found that blind users are often deceived by ads that contextually blend in with the surrounding web page content. While ad blockers can address this problem via …


Novornabreak: Local Assembly For Novel Splice Junction And Fusion Transcript Detection From Rna-Seq Data, Yukun Tan, Vakul Mohanty, Shaoheng Liang, Jinzhuang Dou, Jun Ma, Kun Hee Kim, Marc Jan Bonder, Xinghua Shi, Charles Lee, Zechen Chong, Ken Chen Jan 2023

Novornabreak: Local Assembly For Novel Splice Junction And Fusion Transcript Detection From Rna-Seq Data, Yukun Tan, Vakul Mohanty, Shaoheng Liang, Jinzhuang Dou, Jun Ma, Kun Hee Kim, Marc Jan Bonder, Xinghua Shi, Charles Lee, Zechen Chong, Ken Chen

Faculty, Staff and Student Publications

We present novoRNABreak, a unified framework for cancer specific novel splice junction and fusion transcript detection in RNA-seq data obtained from human cancer samples. novoRNABreak is based on a local assembly model, which offers a tradeoff between the alignment-based and de novo whole transcriptome assembly (WTA) methods. This approach is accurate and sensitive in assembling novel junctions that are difficult to directly align or have multiple alignments. Additionally, it is more efficient due to the strategy that focuses on junctions rather than full length transcripts. The performance of novoRNABreak is demonstrated by a comprehensive set of experiments using synthetic data …


Automated Brain Metastases Segmentation With A Deep Dive Into False-Positive Detection, Hamidreza Ziyaee, Carlos E Cardenas, D Nana Yeboa, Jing Li, Sherise D Ferguson, Jason Johnson, Zijian Zhou, Jeremiah Sanders, Raymond Mumme, Laurence Court, Tina Briere, Jinzhong Yang Jan 2023

Automated Brain Metastases Segmentation With A Deep Dive Into False-Positive Detection, Hamidreza Ziyaee, Carlos E Cardenas, D Nana Yeboa, Jing Li, Sherise D Ferguson, Jason Johnson, Zijian Zhou, Jeremiah Sanders, Raymond Mumme, Laurence Court, Tina Briere, Jinzhong Yang

Faculty, Staff and Student Publications

Purpose: The clinical management of brain metastases after stereotactic radiosurgery (SRS) is difficult, because a physician must review follow-up magnetic resonance imaging (MRI) scans to determine treatment outcome, which is often labor intensive. The purpose of this study was to develop an automated framework to contour brain metastases in MRI to help treatment planning for SRS and understand its limitations.

Methods and materials: Two self-adaptive nnU-Net models trained on postcontrast 3-dimensional T1-weighted MRI scans from patients who underwent SRS were analyzed. Performance was evaluated by computing positive predictive value (PPV), sensitivity, and Dice similarity coefficient (DSC). The training and testing …


Pathologic And Molecular Insights In Nodal T-Follicular Helper Cell Lymphomas, Mario L Marques-Piubelli, Catalina Amador, Francisco Vega Jan 2023

Pathologic And Molecular Insights In Nodal T-Follicular Helper Cell Lymphomas, Mario L Marques-Piubelli, Catalina Amador, Francisco Vega

Faculty, Staff and Student Publications

T-follicular helper (TFH) cells are one of the T-cell subsets with a critical role in the regulation of germinal center (GC) reactions. TFH cells contribute to the positive selection of GC B-cells and promote plasma cell differentiation and antibody production. TFH cells express a unique phenotype characterized by PD-1hi, ICOShi, CD40Lhi, CD95hi, CTLAhi, CCR7lo, and CXCR5hi . Three main subtypes of nodal TFH lymphomas have been described: 1) angioimmunoblastic-type, 2) follicular-type, and 3) not otherwise specified (NOS). The diagnosis of these neoplasms can be challenging, and it is rendered based on a combination of clinical, laboratory, histopathologic, immunophenotypic, and molecular …


When Guilt Works: A Comprehensive Meta-Analysis Of Guilt Appeals, Wei Peng, Qian Huang, Bingjing Mao, Di Lun, Ekaterina Malova, Jazmyne V Simmons, Nick Carcioppolo Jan 2023

When Guilt Works: A Comprehensive Meta-Analysis Of Guilt Appeals, Wei Peng, Qian Huang, Bingjing Mao, Di Lun, Ekaterina Malova, Jazmyne V Simmons, Nick Carcioppolo

Faculty, Staff and Student Publications

Introduction: Guilt appeals are widely used as a persuasive approach in various areas of practice. However, the strength and direction of the persuasive effects of guilt appeals are mixed, which could be influenced by theoretical and methodological factors.

Method: The present study is a comprehensive meta-analysis of 26 studies using a random-effects model to assess the persuasive effects of guilt appeals. In total, 127 effect sizes from seven types of persuasive outcomes (i.e., guilt, attitude, behavior, behavioral intention, non-guilt emotions, motivation, and cognition) were calculated based on 7,512 participants.

Results: The analysis showed a small effect size of guilt appeals …


Changes In Distribution Of Severe Neurologic Involvement In Us Pediatric Inpatients With Covid-19 Or Multisystem Inflammatory Syndrome In Children In 2021 Vs 2020., Kerri L. Larovere, Tina Y. Poussaint, Cameron C. Young, Margaret M. Newhams, Suden Kucukak, Katherine Irby, Michele Kong, Stephanie P. Schwartz, Tracie C. Walker, Melania M. Bembea, Kari Wellnitz, Kevin M. Havlin, Natalie Z. Cvijanovich, Mark W. Hall, Julie C. Fitzgerald, Jennifer E. Schuster, Charlotte V. Hobbs, Natasha B. Halasa, Aalok R. Singh, Elizabeth H. Mack, Tamara T. Bradford, Shira J. Gertz, Adam J. Schwarz, Katri V. Typpo, Laura L. Loftis, John S. Giuliano, Steven M. Horwitz, Katherine V. Biagas, Katharine N. Clouser, Courtney M. Rowan, Aline B. Maddux, Vijaya L. Soma, Christopher J. Babbitt, Cassyanne L. Aguiar, Amanda R. Kolmar, Sabrina M. Heidemann, Helen Harvey, Laura D. Zambrano, Angela P. Campbell, Adrienne G. Randolph, Overcoming Covid-19 Investigators Jan 2023

Changes In Distribution Of Severe Neurologic Involvement In Us Pediatric Inpatients With Covid-19 Or Multisystem Inflammatory Syndrome In Children In 2021 Vs 2020., Kerri L. Larovere, Tina Y. Poussaint, Cameron C. Young, Margaret M. Newhams, Suden Kucukak, Katherine Irby, Michele Kong, Stephanie P. Schwartz, Tracie C. Walker, Melania M. Bembea, Kari Wellnitz, Kevin M. Havlin, Natalie Z. Cvijanovich, Mark W. Hall, Julie C. Fitzgerald, Jennifer E. Schuster, Charlotte V. Hobbs, Natasha B. Halasa, Aalok R. Singh, Elizabeth H. Mack, Tamara T. Bradford, Shira J. Gertz, Adam J. Schwarz, Katri V. Typpo, Laura L. Loftis, John S. Giuliano, Steven M. Horwitz, Katherine V. Biagas, Katharine N. Clouser, Courtney M. Rowan, Aline B. Maddux, Vijaya L. Soma, Christopher J. Babbitt, Cassyanne L. Aguiar, Amanda R. Kolmar, Sabrina M. Heidemann, Helen Harvey, Laura D. Zambrano, Angela P. Campbell, Adrienne G. Randolph, Overcoming Covid-19 Investigators

Manuscripts, Articles, Book Chapters and Other Papers

IMPORTANCE: In 2020 during the COVID-19 pandemic, neurologic involvement was common in children and adolescents hospitalized in the United States for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-related complications.

OBJECTIVE: To provide an update on the spectrum of SARS-CoV-2-related neurologic involvement among children and adolescents in 2021.

DESIGN, SETTING, AND PARTICIPANTS: Case series investigation of patients reported to public health surveillance hospitalized with SARS-CoV-2-related illness between December 15, 2020, and December 31, 2021, in 55 US hospitals in 31 states with follow-up at hospital discharge. A total of 2253 patients were enrolled during the investigation period. Patients suspected of having …


Sociodemographic Differences In Menthol Cigarette Use In The United States, Rajesh Talluri, Sanjay Shete Jan 2023

Sociodemographic Differences In Menthol Cigarette Use In The United States, Rajesh Talluri, Sanjay Shete

Faculty, Staff and Student Publications

Background: Menthol cigarette use is associated with higher smoking initiation and reduced smoking cessation. We investigated sociodemographic differences in menthol and nonmenthol cigarette use in the United States.

Methods: We used the most recent available data from the May 2019 wave of the nationally-representative Tobacco Use Supplement to the Current Population Survey. The survey weights were used to estimate the national prevalence of individuals who currently smoke among individuals who use menthol and nonmenthol cigarettes. Survey-weighted logistic regression methods were used to estimate the association of menthol cigarette use with formerly smoking cigarettes and attempting to quit within the past …


Applying Ht-Saxs To Chemical Ligand Screening, Chris A Brosey, Runze Shen, Davide Moiani, Darin E Jones, Kathryn Burnett, Greg L Hura, John A Tainer Jan 2023

Applying Ht-Saxs To Chemical Ligand Screening, Chris A Brosey, Runze Shen, Davide Moiani, Darin E Jones, Kathryn Burnett, Greg L Hura, John A Tainer

Faculty, Staff and Student Publications

Chemical probes are invaluable tools for investigating essential biological processes. Understanding how small-molecule probes engage biomolecular conformations is critical to developing their functional selectivity. High-throughput solution X-ray scattering is well-positioned to profile target-ligand complexes during probe development, bringing conformational insight and selection to traditional ligand binding assays. Access to high-quality synchrotron SAXS datasets and high-throughput data analysis now allows routine academic users to incorporate conformational information into small-molecule development pipelines. Here we describe a general approach for benchmarking and preparing HT-SAXS chemical screens from small fragment libraries. Using the allosteric oxidoreductase Apoptosis-Inducing Factor (AIF) as an exemplary system, we illustrate …


Adverse Events Of Immune Checkpoint Therapy Alone Versus When Combined With Vascular Endothelial Growth Factor Inhibitors: A Pooled Meta-Analysis Of 1735 Patients, Iuliia Kovalenko, Wern Lynn Ng, Yimin Geng, Yinghong Wang, Pavlos Msaouel, Shailender Bhatia, Petros Grivas, Raed Benkhadra, Omar Alhalabi Jan 2023

Adverse Events Of Immune Checkpoint Therapy Alone Versus When Combined With Vascular Endothelial Growth Factor Inhibitors: A Pooled Meta-Analysis Of 1735 Patients, Iuliia Kovalenko, Wern Lynn Ng, Yimin Geng, Yinghong Wang, Pavlos Msaouel, Shailender Bhatia, Petros Grivas, Raed Benkhadra, Omar Alhalabi

Faculty, Staff and Student Publications

Background: Combining immune checkpoint therapy (ICT) and vascular endothelial growth factor inhibitors (VEGFi) may result in increased treatment-related and immune-related adverse events (TRAEs and irAEs) compared to ICT alone. This metanalysis was conducted to identify prospective phase II or III clinical studies that evaluated the toxicity profile of ICT + VEGFi compared to ICT alone.

Methods: A systematic search was performed across all cancer types and major databases until August 10, 2022, and screening was done by two independent investigators. Inclusion criteria included phase 2 or 3 studies with at least one arm of patients treated with combination therapy and …


Cd73-Generated Extracellular Adenosine Promotes Resolution Of Neutrophil-Mediated Tissue Injury And Restrains Metaplasia In Pancreatitis, Baylee J O'Brien, Erika Y Faraoni, Lincoln N Strickland, Zhibo Ma, Victoria Mota, Samantha Mota, Xuebo Chen, Tingting Mills, Holger K Eltzschig, Kathleen E Delgiorno, Jennifer M Bailey-Lundberg Jan 2023

Cd73-Generated Extracellular Adenosine Promotes Resolution Of Neutrophil-Mediated Tissue Injury And Restrains Metaplasia In Pancreatitis, Baylee J O'Brien, Erika Y Faraoni, Lincoln N Strickland, Zhibo Ma, Victoria Mota, Samantha Mota, Xuebo Chen, Tingting Mills, Holger K Eltzschig, Kathleen E Delgiorno, Jennifer M Bailey-Lundberg

Faculty, Staff and Student Publications

Pancreatitis is currently the leading cause of gastrointestinal hospitalizations in the US. This condition occurs in response to abdominal injury, gallstones, chronic alcohol consumption or, less frequently, the cause remains idiopathic. CD73 is a cell surface ecto‐5′‐nucleotidase that generates extracellular adenosine, which can contribute to resolution of inflammation by binding adenosine receptors on infiltrating immune cells. We hypothesized genetic deletion of CD73 would result in more severe pancreatitis due to decreased generation of extracellular adenosine. CD73 knockout (CD73 −/−) and C57BL/6 (wild type, WT) mice were used to evaluate the progression and response of caerulein‐induced acute and chronic pancreatitis. …


Positron Emission Tomography Derived Metrics In Relapsed Or Refractory Large B-Cell Lymphoma With Residual Disease Before Autologous Stem Cell Transplant, Hua-Jay J Cherng, Guofan Xu, Lei Feng, Raphael Steiner, Luis Fayad, Paolo Strati, Ranjit Nair, Loretta J Nastoupil, Hun Ju Lee, Sattva S Neelapu, Christopher R Flowers, Maria Rodriguez, Michael Wang, Fredrick Hagemeister, Chelsea C Pinnix, Jeremy Ramdial, Samer Srour, Yago Nieto, Katayoun Rezvani, Richard Champlin, Partow Kebriaei, Jason Westin, Homer A Macapinlac, Elizabeth Shpall, Sairah Ahmed Jan 2023

Positron Emission Tomography Derived Metrics In Relapsed Or Refractory Large B-Cell Lymphoma With Residual Disease Before Autologous Stem Cell Transplant, Hua-Jay J Cherng, Guofan Xu, Lei Feng, Raphael Steiner, Luis Fayad, Paolo Strati, Ranjit Nair, Loretta J Nastoupil, Hun Ju Lee, Sattva S Neelapu, Christopher R Flowers, Maria Rodriguez, Michael Wang, Fredrick Hagemeister, Chelsea C Pinnix, Jeremy Ramdial, Samer Srour, Yago Nieto, Katayoun Rezvani, Richard Champlin, Partow Kebriaei, Jason Westin, Homer A Macapinlac, Elizabeth Shpall, Sairah Ahmed

Faculty, Staff and Student Publications

Salvage chemotherapy followed by high-dose chemotherapy and autologous stem cell transplantation (ASCT) is a potentially curative treatment for patients with relapsed or refractory large B-cell lymphoma (rrLBCL) with chemosensitive disease. A18 F-fluorodeoxyglucose positron emission tomography (PET) scan after salvage chemotherapy is used to assess response and eligibility for ASCT, but metrics for chemosensitivity in patients with residual disease are not well defined. We performed a single-centre retrospective analysis of 92 patients with a partial response or stable disease after salvage chemotherapy for rrLBCL who received ASCT to investigate PET-derived parameters and their prognostic utility. The Deauville 5-point Scale (D-5PS) score, …


The Kynurenine Pathway Presents Multi-Faceted Metabolic Vulnerabilities In Cancer, Ricardo A León-Letelier, Rongzhang Dou, Jody Vykoukal, Ali Hussein Abdel Sater, Edwin Ostrin, Samir Hanash, Johannes F Fahrmann Jan 2023

The Kynurenine Pathway Presents Multi-Faceted Metabolic Vulnerabilities In Cancer, Ricardo A León-Letelier, Rongzhang Dou, Jody Vykoukal, Ali Hussein Abdel Sater, Edwin Ostrin, Samir Hanash, Johannes F Fahrmann

Faculty, Staff and Student Publications

The kynurenine pathway (KP) and associated catabolites play key roles in promoting tumor progression and modulating the host anti-tumor immune response. To date, considerable focus has been on the role of indoleamine 2,3-dioxygenase 1 (IDO1) and its catabolite, kynurenine (Kyn). However, increasing evidence has demonstrated that downstream KP enzymes and their associated metabolite products can also elicit tumor-microenvironment immune suppression. These advancements in our understanding of the tumor promotive role of the KP have led to the conception of novel therapeutic strategies to target the KP pathway for anti-cancer effects and reversal of immune escape. This review aims to 1) …


Impact Of Region-Of-Interest Size On Immune Profiling Using Multiplex Immunofluorescence Tyramide Signal Amplification For Paraffin-Embedded Tumor Tissues, Baohua Sun, Caddie Laberiano-Fernández, Ruth Salazar-Alejo, Jiexin Zhang, Jose Luis Solorzano Rendon, Jack Lee, Luisa Maren Solis Soto, Ignacio Ivan Wistuba, Edwin Roger Parra Jan 2023

Impact Of Region-Of-Interest Size On Immune Profiling Using Multiplex Immunofluorescence Tyramide Signal Amplification For Paraffin-Embedded Tumor Tissues, Baohua Sun, Caddie Laberiano-Fernández, Ruth Salazar-Alejo, Jiexin Zhang, Jose Luis Solorzano Rendon, Jack Lee, Luisa Maren Solis Soto, Ignacio Ivan Wistuba, Edwin Roger Parra

Faculty, Staff and Student Publications

Introduction: Representative regions of interest (ROIs) analysis from the whole slide images (WSI) are currently being used to study immune markers by multiplex immunofluorescence (mIF) and single immunohistochemistry (IHC). However, the amount of area needed to be analyzed to be representative of the entire tumor in a WSI has not been defined.

Methods: We labeled tumor-associated immune cells by mIF and single IHC in separate cohorts of non-small cell lung cancer (NSCLC) samples and we analyzed them as whole tumor area as well as using different number of ROIs to know how much area will be need to represent the …


Anxiety And Uterine Artery Doppler Flow In A Population Of Pregnant Women Of High Risk Down Syndrome Fetus: A Prospective Cohort Study, Mahboobeh Shirazi, Mehnoosh Torkzaban, Margan Ghaemi, Maryam Moshfeghi, Mahmood Shirazi, Maryam Emadzadeh, Lida Ahmadi, Zahra Khazaeipoor, Sara Mirzaeian Jan 2023

Anxiety And Uterine Artery Doppler Flow In A Population Of Pregnant Women Of High Risk Down Syndrome Fetus: A Prospective Cohort Study, Mahboobeh Shirazi, Mehnoosh Torkzaban, Margan Ghaemi, Maryam Moshfeghi, Mahmood Shirazi, Maryam Emadzadeh, Lida Ahmadi, Zahra Khazaeipoor, Sara Mirzaeian

Department of Radiology Faculty Papers

Background: Fetal exposure to maternal anxiety is associated with low birth weight and maternal stress may be led to constriction of uterine arteries. This study compared the relation of anxiety and uterine artery doppler flow indices in pregnant women with the high and low-risk of Down syndrome.

Materials and methods: This prospective cohort study was conducted among pregnant women in the second trimester that were classified as having a high or low risk according to their prenatal aneuploidy screening outcome. The high risk group underwent amniocentesis. Anxiety was initially assessed using the Spielberger State-Anxiety Inventory (STAI) and uterine artery blood …


Contrast-Enhanced Ultrasound Li-Rads: A Pictorial Review, Osama Mahmoud, Ajay Makkena, Corinne E. Wessner, Ji-Bin Liu, John Eisenbrey, Andrej Lyshchik Jan 2023

Contrast-Enhanced Ultrasound Li-Rads: A Pictorial Review, Osama Mahmoud, Ajay Makkena, Corinne E. Wessner, Ji-Bin Liu, John Eisenbrey, Andrej Lyshchik

Department of Radiology Faculty Papers

The American College of Radiology has implemented the Liver Imaging Reporting and Data System (LI-RADS) to help detect, interpret, and guide the management of suspected lesions on surveillance imaging for hepatocellular carcinoma (HCC) in patients with cirrhosis. The classification of indeterminate nodules with a grading algorithm can be used for multiple imaging modalities (US, CT, and MRI) and incorporates multiple imaging features to appropriately classify observations with different likelihood of being HCC. Contrast-enhanced ultrasound (CEUS) LI-RADS has been fully implemented since 2017. The aim of this pictorial article is to provide a comprehensive review of CEUS LI-RADS utilization, discuss its …


Resistant Drug-Eluting Stent Restenosis And Resurrection Of Intracoronary Brachytherapy: The Lazarus Of Contemporary Coronary Intervention, Michael P. Savage, David L. Fischman Jan 2023

Resistant Drug-Eluting Stent Restenosis And Resurrection Of Intracoronary Brachytherapy: The Lazarus Of Contemporary Coronary Intervention, Michael P. Savage, David L. Fischman

Division of Cardiology Faculty Papers

No abstract provided.