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Full-Text Articles in Public Health

Micro-Rna Analysis Of Extracellular Vesicles Secreted By Alveolar Macrophages And Epithelial Cells In Response To Cadmium, Anisha Bhakta Jun 2022

Micro-Rna Analysis Of Extracellular Vesicles Secreted By Alveolar Macrophages And Epithelial Cells In Response To Cadmium, Anisha Bhakta

Biotechnology Theses

Inhalation of cadmium (Cd) has been an environmental health concern with the increase in industrial activities and smoking. Cd exposure is known to affect several organs such as lungs, kidneys, and liver. In this study, we wanted to understand if Cd inhalation exposure can affect the lungs and other organs in the body. Exosomes are extracellular vesicles secreted by all living cells and are known to carry toxicants between organs. We investigated whether Cd exposure could affect exosome biogenesis and their composition. Cd exposure did not affect the viability of A549, a lung epithelial cell line and macrophages derived from …


Utility Of The Motivation To Change Lifestyle And Health Behaviors For Dementia Risk Reduction Scale (Mclhb-Drr) Based On A North American Sample, Angelina E. Witbeck Jun 2022

Utility Of The Motivation To Change Lifestyle And Health Behaviors For Dementia Risk Reduction Scale (Mclhb-Drr) Based On A North American Sample, Angelina E. Witbeck

Dissertations

As the population ages, the prevalence rates of dementia continue to increase. Without a cure or promising treatment for dementia, the best course of lowering the prevalence rates of dementia is through preventative measures. Through an electronic survey, the study utilized the MCLHB-DRR scale to determine whether (1) gender, age, educational background, and socioeconomic status will impact the motivational factors to change lifestyle and health behaviors to reduce the risk of developing dementia and (2) direct experiences with individuals that have a dementia diagnosis are likely to impact one's motivational factors to change lifestyle and health behaviors to reduce the …


Association Of Alcohol Use And Physical Activity With Body Mass Index In Mexican-Origin Adults, Natalia I Heredia, Qiong Dong, Shine Chang, Lorna H Mcneill Jun 2022

Association Of Alcohol Use And Physical Activity With Body Mass Index In Mexican-Origin Adults, Natalia I Heredia, Qiong Dong, Shine Chang, Lorna H Mcneill

Faculty, Staff and Student Publications

BACKGROUND: Studies across racial/ethnic groups indicate that physical activity (PA) and alcohol consumption are positively associated, and that alcohol consumption is negatively associated with body mass index (BMI), but this relationship is less often evaluated in Hispanics. The purpose of this study was to assess the relationships between alcohol consumption, PA, and BMI in Hispanic adults.

METHODS: In this secondary data analysis of a Mexican-American cohort, we collected self-reported PA, alcohol consumption, and demographics, and measured height and weight. Linear regression assessed the association between PA and alcohol consumption with BMI, controlling for covariates. Total sample for analyses was n …


Assessing The Established Competency Categories Of The Biosafety, Infection Prevention, And Public Health Professions: A Guide For Addressing Needed Professional Development Training For The Current And Next Pandemic, Robert J Emery, Scott J Patlovich, Kristin G King, John M Lowe, Janelle Rios Jun 2022

Assessing The Established Competency Categories Of The Biosafety, Infection Prevention, And Public Health Professions: A Guide For Addressing Needed Professional Development Training For The Current And Next Pandemic, Robert J Emery, Scott J Patlovich, Kristin G King, John M Lowe, Janelle Rios

Faculty, Staff and Student Publications

A recent series of widespread infectious disease outbreaks has highlighted commonalities and differences between three key professions that operate on the front lines of response in support of research and/or direct healthcare providers: biosafety, infection prevention, and public health. This assessment, which builds upon previous study by the authors, examines the stated professional competency categories for these three areas, highlighting similarities and differences. This assessment is important as these professions are being drawn together in an operational environment driven by the current pandemic and inevitably future disease outbreaks. Cross-training opportunities for the various professions are proposed.


Regularized Regression On Compositional Trees With Application To Mri Analysis, Bingkai Wang, Brian S Caffo, Xi Luo, Chin-Fu Liu, Andreia V Faria, Michael I Miller, Yi Zhao Jun 2022

Regularized Regression On Compositional Trees With Application To Mri Analysis, Bingkai Wang, Brian S Caffo, Xi Luo, Chin-Fu Liu, Andreia V Faria, Michael I Miller, Yi Zhao

Faculty, Staff and Student Publications

A compositional tree refers to a tree structure on a set of random variables where each random variable is a node and composition occurs at each non-leaf node of the tree. As a generalization of compositional data, compositional trees handle more complex relationships among random variables and appear in many disciplines, such as brain imaging, genomics and finance. We consider the problem of sparse regression on data that are associated with a compositional tree and propose a transformation-free tree-based regularized regression method for component selection. The regularization penalty is designed based on the tree structure and encourages a sparse tree …


Gene-Lifestyle Interactions In The Genomics Of Human Complex Traits, Vincent Laville, Timothy Majarian, Yun J Sung, Karen Schwander, Mary F Feitosa, Daniel I Chasman, Amy R Bentley, Charles N Rotimi, L Adrienne Cupples, Paul S De Vries, Michael R Brown, Alanna C Morrison, Aldi T Kraja, Mike Province, C Charles Gu, W James Gauderman, Charge Gene-Lifestyle Interactions Working Group, D C Rao, Alisa K Manning, Hugues Aschard Jun 2022

Gene-Lifestyle Interactions In The Genomics Of Human Complex Traits, Vincent Laville, Timothy Majarian, Yun J Sung, Karen Schwander, Mary F Feitosa, Daniel I Chasman, Amy R Bentley, Charles N Rotimi, L Adrienne Cupples, Paul S De Vries, Michael R Brown, Alanna C Morrison, Aldi T Kraja, Mike Province, C Charles Gu, W James Gauderman, Charge Gene-Lifestyle Interactions Working Group, D C Rao, Alisa K Manning, Hugues Aschard

Faculty, Staff and Student Publications

The role and biological significance of gene-environment interactions in human traits and diseases remain poorly understood. To address these questions, the CHARGE Gene-Lifestyle Interactions Working Group conducted series of genome-wide interaction studies (GWIS) involving up to 610,475 individuals across four ancestries for three lipids and four blood pressure traits, while accounting for interaction effects with drinking and smoking exposures. Here we used GWIS summary statistics from these studies to decipher potential differences in genetic associations and G×E interactions across phenotype-exposure-ancestry combinations, and to derive insights on the potential mechanistic underlying G×E through in-silico functional analyses. Our analyses show first that …


Multi-Phenotype Analyses Of Hemostatic Traits With Cardiovascular Events Reveal Novel Genetic Associations, Gerard Temprano-Sagrera, Colleen M Sitlani, William P Bone, Miguel Martin-Bornez, Benjamin F Voight, Alanna C Morrison, Scott M Damrauer, Paul S De Vries, Nicholas L Smith, Maria Sabater-Lleal Jun 2022

Multi-Phenotype Analyses Of Hemostatic Traits With Cardiovascular Events Reveal Novel Genetic Associations, Gerard Temprano-Sagrera, Colleen M Sitlani, William P Bone, Miguel Martin-Bornez, Benjamin F Voight, Alanna C Morrison, Scott M Damrauer, Paul S De Vries, Nicholas L Smith, Maria Sabater-Lleal

Faculty, Staff and Student Publications

BACKGROUND: Multi-phenotype analysis of genetically correlated phenotypes can increase the statistical power to detect loci associated with multiple traits, leading to the discovery of novel loci. This is the first study to date to comprehensively analyze the shared genetic effects within different hemostatic traits, and between these and their associated disease outcomes.

OBJECTIVES: To discover novel genetic associations by combining summary data of correlated hemostatic traits and disease events.

METHODS: Summary statistics from genome wide-association studies (GWAS) from seven hemostatic traits (factor VII [FVII], factor VIII [FVIII], von Willebrand factor [VWF] factor XI [FXI], fibrinogen, tissue plasminogen activator [tPA], plasminogen …


Host And Gut Microbial Tryptophan Metabolism And Type 2 Diabetes: An Integrative Analysis Of Host Genetics, Diet, Gut Microbiome And Circulating Metabolites In Cohort Studies, Qibin Qi, Jun Li, Bing Yu, Jee-Young Moon, Jin C Chai, Jordi Merino, Jie Hu, Miguel Ruiz-Canela, Casey Rebholz, Zheng Wang, Mykhaylo Usyk, Guo-Chong Chen, Bianca C Porneala, Wenshuang Wang, Ngoc Quynh Nguyen, Elena V Feofanova, Megan L Grove, Thomas J Wang, Robert E Gerszten, Josée Dupuis, Jordi Salas-Salvadó, Wei Bao, David L Perkins, Martha L Daviglus, Bharat Thyagarajan, Jianwen Cai, Tao Wang, Joann E Manson, Miguel A Martínez-González, Elizabeth Selvin, Kathryn M Rexrode, Clary B Clish, Frank B Hu, James B Meigs, Rob Knight, Robert D Burk, Eric Boerwinkle, Robert C Kaplan Jun 2022

Host And Gut Microbial Tryptophan Metabolism And Type 2 Diabetes: An Integrative Analysis Of Host Genetics, Diet, Gut Microbiome And Circulating Metabolites In Cohort Studies, Qibin Qi, Jun Li, Bing Yu, Jee-Young Moon, Jin C Chai, Jordi Merino, Jie Hu, Miguel Ruiz-Canela, Casey Rebholz, Zheng Wang, Mykhaylo Usyk, Guo-Chong Chen, Bianca C Porneala, Wenshuang Wang, Ngoc Quynh Nguyen, Elena V Feofanova, Megan L Grove, Thomas J Wang, Robert E Gerszten, Josée Dupuis, Jordi Salas-Salvadó, Wei Bao, David L Perkins, Martha L Daviglus, Bharat Thyagarajan, Jianwen Cai, Tao Wang, Joann E Manson, Miguel A Martínez-González, Elizabeth Selvin, Kathryn M Rexrode, Clary B Clish, Frank B Hu, James B Meigs, Rob Knight, Robert D Burk, Eric Boerwinkle, Robert C Kaplan

Faculty, Staff and Student Publications

OBJECTIVE: Tryptophan can be catabolised to various metabolites through host kynurenine and microbial indole pathways. We aimed to examine relationships of host and microbial tryptophan metabolites with incident type 2 diabetes (T2D), host genetics, diet and gut microbiota.

METHOD: We analysed associations between circulating levels of 11 tryptophan metabolites and incident T2D in 9180 participants of diverse racial/ethnic backgrounds from five cohorts. We examined host genome-wide variants, dietary intake and gut microbiome associated with these metabolites.

RESULTS: Tryptophan, four kynurenine-pathway metabolites (kynurenine, kynurenate, xanthurenate and quinolinate) and indolelactate were positively associated with T2D risk, while indolepropionate was inversely associated with …


Part I Antimicrobial Resistance: Bacterial Pathogens Of Dermatologic Significance And Implications Of Rising Resistance, Saira George, Fiorinda F Muhaj, Celine D Nguyen, Stephen K Tyring Jun 2022

Part I Antimicrobial Resistance: Bacterial Pathogens Of Dermatologic Significance And Implications Of Rising Resistance, Saira George, Fiorinda F Muhaj, Celine D Nguyen, Stephen K Tyring

Faculty, Staff and Student Publications

Although the COVID-19 pandemic has been the defining global health crisis of our time, public health officials have been sounding the alarm of another ominous threat for years: an impending antimicrobial resistance crisis. In dermatology, antibiotics are often used for prolonged courses in the treatment of skin and soft tissue infections and common inflammatory skin conditions, increasing the risk of microbiome alteration and antibiotic-related adverse effects, all while exerting consequential selective pressures on both pathogenic and bystander bacteria. In this review, we hope to raise awareness of the crisis of antimicrobial resistance and review resistance concerns related to dermatology-relevant bacterial …


Pneumothorax And Pneumomediastinum In Covid-19: A Case Series, Stephan Reyes, Brad Roche, Farah Kazzaz, Daniel Ocazionez, Aditya P Lal, Rosa M Estrada-Y-Martin, Sujith V Cherian Jun 2022

Pneumothorax And Pneumomediastinum In Covid-19: A Case Series, Stephan Reyes, Brad Roche, Farah Kazzaz, Daniel Ocazionez, Aditya P Lal, Rosa M Estrada-Y-Martin, Sujith V Cherian

Faculty, Staff and Student Publications

COVID- 19 has become a major pandemic affecting more than 11 million people worldwide. Common radiological manifestations of COVID-19 include peripheral based ground-glass or consolidative opacities; however, pneumothorax and pneumo-mediastinum are very rare manifestations; even more so within patients not on mechanical ventilation. We present a case series of 5 patients with COVID-19 who either presented with or developed spontaneous pneumothorax or pneumo-mediastinum within the course of hospitalization. With the exception of one patient, all other patients developed pneumothorax as a late manifestation in their illness; more than 10 days after initial symptom onset in COVID-19. From within this case …


Knowledge-Based Planning For The Radiation Therapy Treatment Plan Quality Assurance For Patients With Head And Neck Cancer, Wenhua Cao, Mary Gronberg, Adenike Olanrewaju, Thomas Whitaker, Karen Hoffman, Carlos Cardenas, Adam Garden, Heath Skinner, Beth Beadle, Laurence Court Jun 2022

Knowledge-Based Planning For The Radiation Therapy Treatment Plan Quality Assurance For Patients With Head And Neck Cancer, Wenhua Cao, Mary Gronberg, Adenike Olanrewaju, Thomas Whitaker, Karen Hoffman, Carlos Cardenas, Adam Garden, Heath Skinner, Beth Beadle, Laurence Court

Faculty, Staff and Student Publications

This study aimed to investigate the feasibility of using a knowledge-based planning technique to detect poor quality VMAT plans for patients with head and neck cancer. We created two dose-volume histogram (DVH) prediction models using a commercial knowledge-based planning system (RapidPlan, Varian Medical Systems, Palo Alto, CA) from plans generated by manual planning (MP) and automated planning (AP) approaches. DVHs were predicted for evaluation cohort 1 (EC1) of 25 patients and compared with achieved DVHs of MP and AP plans to evaluate prediction accuracy. Additionally, we predicted DVHs for evaluation cohort 2 (EC2) of 25 patients for which we intentionally …


A Roadmap To Clinical Trials For Flash, Paige A Taylor, Jean M Moran, David A Jaffray, Jeffrey C Buchsbaum Jun 2022

A Roadmap To Clinical Trials For Flash, Paige A Taylor, Jean M Moran, David A Jaffray, Jeffrey C Buchsbaum

Faculty, Staff and Student Publications

While FLASH radiation therapy is inspiring enthusiasm to transform the field, it is neither new nor well understood with respect to the radiobiological mechanisms. As FLASH clinical trials are designed, it will be important to ensure we can deliver dose consistently and safely to every patient. Much like hyperthermia and proton therapy, FLASH is a promising new technology that will be complex to implement in the clinic and similarly will require customized credentialing for multi-institutional clinical trials. There is no doubt that FLASH seems promising, but many technologies that we take for granted in conventional radiation oncology, such as rigorous …


Evolution Of International Pediatric Endoscopic Practice Changes During The Coronavirus Disease 2019 Pandemic, Wenly Ruan, Douglas S Fishman, Diana G Lerner, Raoul I Furlano, Mike Thomson, Catharine M Walsh Jun 2022

Evolution Of International Pediatric Endoscopic Practice Changes During The Coronavirus Disease 2019 Pandemic, Wenly Ruan, Douglas S Fishman, Diana G Lerner, Raoul I Furlano, Mike Thomson, Catharine M Walsh

Faculty, Staff and Students Publications

OBJECTIVES: The coronavirus disease 2019 (COVID-19) pandemic has drastically altered endoscopic practices. We initially reported the international impact of COVID-19 on pediatric endoscopic practice. This follow-up study aimed to assess changes 7 months following the initial survey to delineate practice change patterns as the pandemic evolved.

METHODS: Pediatric gastroenterologists who responded to the initial survey were re-surveyed seven months later using Research Electronic Data Capture (REDCap). The survey recorded information on changes in pediatric endoscopic practice patterns, including COVID-19 screening and testing processes and personal protective equipment (PPE) utilization. Additionally, endoscopists' risk tolerance of COVID-19 transmission was evaluated.

RESULTS: Seventy-five …


Risk For Post-Colonoscopy Irritable Bowel Syndrome In Patients With And Without Antibiotic Exposure: A Retrospective Cohort Study, Ravy K Vajravelu, Jordan M Shapiro, Josephine Ni, Shivani U Thanawala, James D Lewis, Hashem B El-Serag Jun 2022

Risk For Post-Colonoscopy Irritable Bowel Syndrome In Patients With And Without Antibiotic Exposure: A Retrospective Cohort Study, Ravy K Vajravelu, Jordan M Shapiro, Josephine Ni, Shivani U Thanawala, James D Lewis, Hashem B El-Serag

Faculty, Staff and Students Publications

BACKGROUND & AIMS: Laboratory studies have demonstrated that antibiotic use in conjunction with bowel purgatives causes alterations to the gut microbiota. Because gut microbiota changes may be a trigger for the development of irritable bowel syndrome (IBS), we sought to assess whether individuals who undergo bowel cleansing for colonoscopy and have concurrent antibiotic exposure develop IBS at higher rates than individuals who undergo colonoscopy without antibiotic exposure.

METHODS: We used data from Optum's de-identified Clinformatics Data Mart Database in the United States to study a cohort of 50- to 55-year-olds who underwent screening colonoscopy. Individuals exposed to antibiotics within 14 …


Social And Demographic Disparities In The Severity Of Multisystem Inflammatory Syndrome In Children, Fabio Savorgnan, Sebastian Acosta, Alexander Alali, Axel Moreira, Ananth Annapragada, Craig G Rusin, Saul Flores, Rohit S Loomba, Alvaro Moreira Jun 2022

Social And Demographic Disparities In The Severity Of Multisystem Inflammatory Syndrome In Children, Fabio Savorgnan, Sebastian Acosta, Alexander Alali, Axel Moreira, Ananth Annapragada, Craig G Rusin, Saul Flores, Rohit S Loomba, Alvaro Moreira

Faculty, Staff and Students Publications

Social constructs are known risk factors for multisystem inflammatory syndrome in children. A review of 206 patients demonstrated that children who were non-Hispanic Black, over the age of 12 years or living in a disadvantaged neighborhood associated with severe multisystem inflammatory syndrome in children (intensive care unit admission, intubation and/or vasopressor use).


Information Is Power: The Experiences, Attitudes And Needs Of Individuals Who Chose To Have Prenatal Genomic Sequencing For Fetal Anomalies, Catherine G Kernie, Julia Wynn, Allison Rosenbaum, Jessica De Voest, Stephanie Galloway, Jessica Giordano, Samantha Stover, Lauren Westerfield, Kelly Gilmore, Ronald J Wapner, Ignatia B Van Den Veyver, Neeta L Vora, Rebecca G Clifton, Aaron B Caughey, Wendy K Chung Jun 2022

Information Is Power: The Experiences, Attitudes And Needs Of Individuals Who Chose To Have Prenatal Genomic Sequencing For Fetal Anomalies, Catherine G Kernie, Julia Wynn, Allison Rosenbaum, Jessica De Voest, Stephanie Galloway, Jessica Giordano, Samantha Stover, Lauren Westerfield, Kelly Gilmore, Ronald J Wapner, Ignatia B Van Den Veyver, Neeta L Vora, Rebecca G Clifton, Aaron B Caughey, Wendy K Chung

Faculty, Staff and Students Publications

OBJECTIVE: This study sought to evaluate the experiences of individuals who chose to participate in a study and receive prenatal genomic sequencing (pGS) for fetuses with congenital structural anomalies.

METHOD: Individuals who received research results of prenatal sequencing were invited to participate in semi-structured interviews about their experiences. A constructivist grounded theory approach was used to code and analyze interviews.

RESULTS: Thirty-three participants from 27 pregnancies were interviewed. Participants were motivated to enroll in the study to find out more about their fetus' condition and prepare for the future. The waiting period was a time of significant anxiety for participants. …


Impact Of The Covid-19 Pandemic On Visual Outcomes Of Diabetic Macular Edema Patients At A Tertiary Care Veterans Affairs Center, Philip Zhou, Jie Gao, Xiaofan Huang, Kristen A Staggers, Kristin Biggerstaff, Silvia Orengo-Nania, Roomasa Channa Jun 2022

Impact Of The Covid-19 Pandemic On Visual Outcomes Of Diabetic Macular Edema Patients At A Tertiary Care Veterans Affairs Center, Philip Zhou, Jie Gao, Xiaofan Huang, Kristen A Staggers, Kristin Biggerstaff, Silvia Orengo-Nania, Roomasa Channa

Faculty, Staff and Students Publications

PURPOSE: There are limited studies on factors that impacted retina clinic patient outcomes during the COVID-19 pandemic. We aimed to evaluate visual and anatomic outcomes in patients with diabetic macular edema (DME) requiring anti-VEGF injections at the veterans' affairs tertiary care eye clinic in Houston, TX.

METHODS: Patient volume from April 2020 was compared to that of April 2019 to determine attendance changes. To evaluate outcomes, we reviewed patients with DME who had scheduled appointments during April 2020. We tracked changes in central foveal thickness (CFT) and Snellen visual acuity (VA) measurements. Patient outcomes were classified as poor (defined as …


Making The Case For The Accelerated Withdrawal Of Aducanumab, Peter J. Whitehouse May 2022

Making The Case For The Accelerated Withdrawal Of Aducanumab, Peter J. Whitehouse

Faculty Scholarship

U.S. Food and Drug Administration-s (FDA) approval of aducanumab (Aduhelm® in the US) as a treatment for mild cognitive impairment of the Alzheimer type and Alzheimer-s disease has raised such major concerns about efficacy, safety, FDA processes, and regulatory capture that Biogen-s license to market this biologic should be immediately withdrawn. Aducanumab has not demonstrated benefit to patients, failed to meet regulatory guidelines, and is likely to cause both individual and societal harm.


Women's Health: Optimal Nutrition Throughout The Lifecycle, Edith J M Feskens, Regan Bailey, Zulfiqar Ahmed Bhutta, Hans-Konrad Biesalski, Heather Eicher-Miller, Klaus Krämer, Wen-Harn Pan, James C. Griffiths May 2022

Women's Health: Optimal Nutrition Throughout The Lifecycle, Edith J M Feskens, Regan Bailey, Zulfiqar Ahmed Bhutta, Hans-Konrad Biesalski, Heather Eicher-Miller, Klaus Krämer, Wen-Harn Pan, James C. Griffiths

Department of Paediatrics and Child Health

Sex differences are an important consideration when researching and establishing policies for nutrition and optimal health. For women's health, there are important physiologic, neurologic, and hormonal distinctions throughout the lifecycle that impact nutritional needs. Distinct from those for men, these nutritional needs must be translated into appropriate nutrition policy that aims to not only avoid overt nutritional deficiency, but also to promote health and minimize risk for chronic disease. Through a series of webinars, scientific experts discussed the advances in the understanding of the unique nutritional needs, challenges and opportunities of the various life stages for women across the life …


How Environmental Change Will Impact Mosquito-Borne Diseases, Arsal Khan May 2022

How Environmental Change Will Impact Mosquito-Borne Diseases, Arsal Khan

Master's Projects and Capstones

Mosquitos, the most lethal species throughout human history, are the most prevalent source of vector-borne diseases and therefore a major global health burden. Mosquito-borne disease incidence is expected to shift with environmental change. These changes can be predicted using species distribution models. With the wide variety of methods used for models, consensus for improving accuracy and comparability is needed. A comparative analysis of three recent modeling approaches revealed that integrating modeling techniques compensates for trade-offs associated with a singular approach. An area that represents a critical gap in our ability to predict mosquito behavior in response to changing climate factors, …


A Novel Approach Toward Concussion Testing, Jorge K. Mercado, Ari Schacter, Danielle Euzent May 2022

A Novel Approach Toward Concussion Testing, Jorge K. Mercado, Ari Schacter, Danielle Euzent

Student Theses

A concussion is a violent jarring or shaking of the head caused by whiplash or direct impact that results in a disturbance of brain function. Concussions can be mild and brief, as a person may be dazed momentarily or can be more serious, resulting in a loss of consciousness. Underreporting of concussions is prevalent because they are a symptom-based diagnosis, lacking a clinical test. In this study, we investigated the use of VNG testing as a clinical diagnosis of concussions. Looking at the VNG test battery, the previous research cohort found that saccades, gaze, and positional testing are the most …


Platelets Increase The Expression Of Pd-L1 In Ovarian Cancer, Min Soon Cho, Hani Lee, Ricardo Gonzalez-Delgado, Dan Li, Tomoyuki Sasano, Wendolyn Carlos-Alcalde, Qing Ma, Jinsong Liu, Anil K Sood, Vahid Afshar-Kharghan May 2022

Platelets Increase The Expression Of Pd-L1 In Ovarian Cancer, Min Soon Cho, Hani Lee, Ricardo Gonzalez-Delgado, Dan Li, Tomoyuki Sasano, Wendolyn Carlos-Alcalde, Qing Ma, Jinsong Liu, Anil K Sood, Vahid Afshar-Kharghan

Faculty, Staff and Student Publications

The interactions between platelets and cancer cells activate platelets and enhance tumor growth. Platelets increase proliferation and epithelial-mesenchymal transition in cancer cells, inhibit anoikis, enhance the extravasation of cancer cells, and protect circulating tumor cells against natural killer cells. Here, we have identified another mechanism by which platelets dampen the immune attack on cancer cells. We found that platelets can blunt the antitumor immune response by increasing the expression of inhibitory immune checkpoint (PD-L1) on ovarian cancer cells in vitro and in vivo. Platelets increased PD-L1 in cancer cells via contact-dependent (through NF-κB signaling) and contact-independent (through TFGβR1/Smad signaling) pathways. …


The Emotional Impact Of Urinary Tract Infections In Women: A Qualitative Analysis, Larissa Grigoryan, Aruni Mulgirigama, Marcy Powell, Guido Schmiemann May 2022

The Emotional Impact Of Urinary Tract Infections In Women: A Qualitative Analysis, Larissa Grigoryan, Aruni Mulgirigama, Marcy Powell, Guido Schmiemann

Faculty, Staff and Students Publications

BACKGROUND: While many studies address the clinical management of participants with uncomplicated urinary tract infection (uUTI), the emotional impact of uUTIs has been investigated less often. The aim of this qualitative study was to understand the emotional experience of women with uUTIs.

METHODS: This was a qualitative, exploratory, in-depth interview-based study conducted among women in the United States (US) and Germany. Women aged ≥ 18 years with at least one uUTI treated with antibiotics in the past year were recruited through a patient community panel and physician referrals. Participants were recruited using purposive sampling to include an equal split of …


An Observational Retrospective Study Of Adverse Events And Behavioral Outcomes During Pediatric Dental Sedation, Kawtar Zouaidi, Gregory Olson, Helen H Lee, Elsbeth Kalenderian, Muhammad F Walji May 2022

An Observational Retrospective Study Of Adverse Events And Behavioral Outcomes During Pediatric Dental Sedation, Kawtar Zouaidi, Gregory Olson, Helen H Lee, Elsbeth Kalenderian, Muhammad F Walji

Faculty, Staff and Student Publications

Purpose: The purpose of this study was to examine a university-based dental electronic health records (EHR) database to identify sedation-related adverse events (AEs) and assess patients' behavioral outcomes during routine pediatric dental sedations (PDSs) in a dental school clinic.

Methods: A database was screened for patients younger than 18 years old who had received dental sedation in 2019. The qualifying EHRs were then accessed and sedations were reviewed for AEs, which were categorized using a 12-point classification system and the Tracking and Reporting Outcomes of Procedural Sedation Tool. Patient behaviors were assessed using provider progress notes and categorized as presence/ …


Global Community Of Practice: A Means For Capacity And Community Strengthening For Health Professionals In Low- And Middle-Income Countries, Allison Silverstein, Amy Benson, Catriona Gates, Diane Nguyen May 2022

Global Community Of Practice: A Means For Capacity And Community Strengthening For Health Professionals In Low- And Middle-Income Countries, Allison Silverstein, Amy Benson, Catriona Gates, Diane Nguyen

Faculty, Staff and Students Publications

BACKGROUND: Low- and middle-income countries face distinct challenges in providing health care services and training. The community of practice (CoP) has been described as a method of facilitating much-needed connections and conversations on this topic and has been adapted over time to include virtual CoPs. We describe the development and evaluation of a global Clinical Lead Forum (CLF) using a CoP framework to structure informal continuing professional development (CPD) and enhance the capacity of health care professionals in low- and middle-income countries.

METHODS: Baylor College of Medicine International Pediatric AIDS Initiative (BIPAI) and its network of affiliated, independent non-governmental organizations …


Biophysical Insight Into The Sars-Cov2 Spike–Ace2 Interaction And Its Modulation By Hepcidin Through A Multifaceted Computational Approach, Hamid Hadi-Alijanvand, Luisa Di Paola, Guang Hu, David M. Leitner, Gennady M. Verkhivker, Peixin Sun, Humanath Poudel, Alessandro Giuliani May 2022

Biophysical Insight Into The Sars-Cov2 Spike–Ace2 Interaction And Its Modulation By Hepcidin Through A Multifaceted Computational Approach, Hamid Hadi-Alijanvand, Luisa Di Paola, Guang Hu, David M. Leitner, Gennady M. Verkhivker, Peixin Sun, Humanath Poudel, Alessandro Giuliani

Mathematics, Physics, and Computer Science Faculty Articles and Research

At the center of the SARS-CoV2 infection, the spike protein and its interaction with the human receptor ACE2 play a central role in the molecular machinery of SARS-CoV2 infection of human cells. Vaccine therapies are a valuable barrier to the worst effects of the virus and to its diffusion, but the need of purposed drugs is emerging as a core target of the fight against COVID19. In this respect, the repurposing of drugs has already led to discovery of drugs thought to reduce the effects of the cytokine storm, but still a drug targeting the spike protein, in the infection …


Rates And Perceptions Of Covid-19 Vaccination From University Of Mississippi Students, Josie Parham May 2022

Rates And Perceptions Of Covid-19 Vaccination From University Of Mississippi Students, Josie Parham

Honors Theses

The trials, tribulations and triumphs of the global COVID-19 pandemic are impacted by and are a product of behaviors that occur at the level of nations, states, cities and, ultimately, communities. In the wake of the development of safe and effective vaccines against SARS-CoV2, the virus responsible for the pandemic, the significance of the vaccine is closely linked to the number of individuals that receive the vaccine. To date, surveys have measured sizable variations in vaccination rates between nations, states, cities, and communities. Focusing on events that have transpired in one such local community, the present study (i) measured the …


Polygenic Transcriptome Risk Scores For Copd And Lung Function Improve Cross-Ethnic Portability Of Prediction In The Nhlbi Topmed Program, Xiaowei Hu, Dandi Qiao, Wonji Kim, Matthew Moll, Pallavi P Balte, Leslie A Lange, Traci M Bartz, Rajesh Kumar, Xingnan Li, Bing Yu, Brian E Cade, Cecelia A Laurie, Tamar Sofer, Ingo Ruczinski, Deborah A Nickerson, Donna M Muzny, Ginger A Metcalf, Harshavardhan Doddapaneni, Stacy Gabriel, Namrata Gupta, Shannon Dugan-Perez, L Adrienne Cupples, Laura R Loehr, Deepti Jain, Jerome I Rotter, James G Wilson, Bruce M Psaty, Myriam Fornage, Alanna C Morrison, Ramachandran S Vasan, George Washko, Stephen S Rich, George T O'Connor, Eugene Bleecker, Robert C Kaplan, Ravi Kalhan, Susan Redline, Sina A Gharib, Deborah Meyers, Victor Ortega, Josée Dupuis, Stephanie J London, Tuuli Lappalainen, Elizabeth C Oelsner, Edwin K Silverman, R Graham Barr, Timothy A Thornton, Heather E Wheeler, Topmed Lung Working Group, Michael H Cho, Hae Kyung Im, Ani Manichaikul May 2022

Polygenic Transcriptome Risk Scores For Copd And Lung Function Improve Cross-Ethnic Portability Of Prediction In The Nhlbi Topmed Program, Xiaowei Hu, Dandi Qiao, Wonji Kim, Matthew Moll, Pallavi P Balte, Leslie A Lange, Traci M Bartz, Rajesh Kumar, Xingnan Li, Bing Yu, Brian E Cade, Cecelia A Laurie, Tamar Sofer, Ingo Ruczinski, Deborah A Nickerson, Donna M Muzny, Ginger A Metcalf, Harshavardhan Doddapaneni, Stacy Gabriel, Namrata Gupta, Shannon Dugan-Perez, L Adrienne Cupples, Laura R Loehr, Deepti Jain, Jerome I Rotter, James G Wilson, Bruce M Psaty, Myriam Fornage, Alanna C Morrison, Ramachandran S Vasan, George Washko, Stephen S Rich, George T O'Connor, Eugene Bleecker, Robert C Kaplan, Ravi Kalhan, Susan Redline, Sina A Gharib, Deborah Meyers, Victor Ortega, Josée Dupuis, Stephanie J London, Tuuli Lappalainen, Elizabeth C Oelsner, Edwin K Silverman, R Graham Barr, Timothy A Thornton, Heather E Wheeler, Topmed Lung Working Group, Michael H Cho, Hae Kyung Im, Ani Manichaikul

Faculty, Staff and Student Publications

While polygenic risk scores (PRSs) enable early identification of genetic risk for chronic obstructive pulmonary disease (COPD), predictive performance is limited when the discovery and target populations are not well matched. Hypothesizing that the biological mechanisms of disease are shared across ancestry groups, we introduce a PrediXcan-derived polygenic transcriptome risk score (PTRS) to improve cross-ethnic portability of risk prediction. We constructed the PTRS using summary statistics from application of PrediXcan on large-scale GWASs of lung function (forced expiratory volume in 1 s [FEV1] and its ratio to forced vital capacity [FEV1/FVC]) in the UK Biobank. We examined prediction performance and …


Associations Of Lifestyle And Sociodemographic Factors With Dietary Supplement Use In College Students, Sydney Chratian May 2022

Associations Of Lifestyle And Sociodemographic Factors With Dietary Supplement Use In College Students, Sydney Chratian

Senior Honors Projects

Background: Dietary supplement use has been shown to be significantly prevalent in the United States, especially among the young adult population. Studies have reported increasing use of dietary supplements among college students in the US. However, little research has investigated the sociodemographic and behavioral characteristics associated with dietary supplement use in this population.

Objectives: The aim of this study was to examine the prevalence of dietary supplement use and sociodemographic and behavioral characteristics associated with dietary supplement use in college students and examine the attitudes and beliefs of college students on dietary supplements.

Methods: A cross sectional study was conducted …


Is Health Literacy A Defined Risk Factor? A Literature Review Of Health Literacy As It Relates To Immigrant Populations In The U.S., Kelly Zdanuczyk May 2022

Is Health Literacy A Defined Risk Factor? A Literature Review Of Health Literacy As It Relates To Immigrant Populations In The U.S., Kelly Zdanuczyk

Sustainability and Social Justice

Throughout its lifespan the definition of health literacy in the United States has been ambiguous and disagreeable. This discrepancy has created disparity among health outcomes for vulnerable populations who are classified with lower degrees of health literacy and thus have a harder time interacting with the healthcare system. This paper will review published peer-reviewed literature on the topic of health literacy as it relates to immigrant populations in the United States and explore the ways in which low health literacy results in negative health outcomes. The literature review finds the discrepancies among health literacy, as it pertains to immigrant communities …