Digital Commons Network^™

Molecular Subtyping Of Hypertensive Disorders Of Pregnancy, Michal Elovitz, Elaine Gee, Nathaniel Delaney-Busch, Alison Moe, Mitsu Reddy, Arkady Khodursky, Johnny La, Ilma Abbas, Kay Mekaru, Hunter Collins, Farooq Siddiqui, Rory Nolan, Rupsa Boelig, Daniel Kiefer, Pamela Simmons, George Saade, Antonio Saad, Ebony Carter, Thomas Mcelrath, Stephen Quake, Mark Depristo, Carrie Haverty, Manfred Lee, Eugeni Namsaraev, Vincenzo Berghella, Ai-Ris Collier, Antonia Frolova, Esther Park-Hwang, Luis Pacheco, Elizabeth Sutton, Maneesh Jain, Kara Rood, William A Grobman, Joseph Biggio, Cynthia Gyamfi-Bannerman, Arun Jeyabalan, Morten Rasmussen

Department of Obstetrics and Gynecology Faculty Papers

Hypertensive disorders of pregnancy (HDP), including preeclampsia, affect 1 in 6 pregnancies, are major contributors to maternal morbidity and mortality, yet lack precision medicine strategies. Analyzing transcriptomic data from a prospectively-collected diverse cohort (n = 9102), this study reveals distinct RNA subtypes in maternal blood, reclassifying clinical HDP phenotypes like early/late-onset preeclampsia. The placental gene PAPPA2 strongly predicts the most severe forms of preeclampsia in individuals without pre-existing high risk factors, months before symptoms, and its overexpression correlates with earlier delivery in a dose-dependent manner. Further, molecular subtypes characterized by immune genes are upregulated in less severe forms of HDP. …

Implementation Of The Masac Recommendations For The Practical Application Of The Cdc Opioid Prescription Guidelines For Chronic Pain Management In Persons With Bleeding Disorders (Pwbd): A Mixed-Methods Study, Lena M. Volland

Doctor of Philosophy in Translational Health Sciences Dissertations

Background: Chronic pain affects the majority of individuals with bleeding disorders (PWBD), diminishing functional abilities, community participation, mental health, and autonomy while increasing opioid usage and healthcare expenses. Despite calls for integrated care models, evidence-based guidelines tailored to PWBD have historically been insufficient. In early 2020, the Medical and Scientific Advisory Council (MASAC) of the National Bleeding Disorders Foundation (NBDF) published the first evidence-based recommendations for chronic pain management, incorporating the 2016 Centers for Disease Control and Prevention (CDC) prescribing guidelines along with additional suggestions for healthcare providers (HCP). The extent of their implementation at U.S. Hemophilia Treatment Centers (HTC) …

Prenatal Exposure To Pm2.5 Concentration And Risk Of Preterm Birth In New Mexico; A Seasonal Pattern And Spatio-Temporal Modeling., Onyedikachi J. Okeke

Mathematics & Statistics ETDs

This study investigates the association between prenatal PM2.5 exposure and preterm birth risk in New Mexico (2014–2021). Using descriptive statistics, time series models, and spatial analyses, findings show an average preterm birth rate of 14.87 per 1,000 live births, with moderate correlation (r = 0.727) between PM2.5 levels and very preterm births. While traditional models revealed no significant global effect, spatial methods such as Geographically Weighted Regression (GWR) and Multiscale GWR uncovered strong spatial heterogeneity. PM2.5 effects varied by county (coefficients: -0.00154 to 0.00150), with clustering evident in 2018–2019 (Moran’s I = 0.155–0.174). Results highlight the limitations of global models …

Tumor-Derived Arachidonic Acid Reprograms Neutrophils To Promote Immune Suppression And Therapy Resistance In Triple-Negative Breast Cancer, Liqun Yu, Keziah Liebenberg, Yichao Shen, Fengshuo Liu, Zhan Xu, Xiaoxin Hao, Ling Wu, Weijie Zhang, Hilda L Chan, Bo Wei, Philip L Lorenzi, Yang Gao, Igor Bado, Luis Becerra-Dominguez, Charlotte Helena Rivas, Sergio Aguirre, Bradley C Pingel, Yi-Hsuan Wu, Yunfeng Ding, Jun Liu, David G Edwards, Livia S Eberlin, Xiang H-F Zhang

Faculty, Staff and Students Publications

The combination of immune checkpoint blockade and chemotherapies is the standard of care for triple-negative breast cancer (TNBC). However, initially, responsive tumors can still develop recurrences, suggesting acquired resistance mechanisms that remain poorly understood. Herein, we discover that TNBC cells surviving anti-programmed cell death protein-1 (anti-PD-1) and chemotherapy treatment accumulate neutral lipids. Disrupting lipid droplet formation in cancer cells reverses resistance and mitigates the immunosuppressive microenvironment. Single-cell RNA sequencing reveals a subset of neutrophils exhibiting a lipid-laden phenotype similar to adjacent tumor cells. Mechanistically, tumor-derived extracellular vesicles carrying lipids, including arachidonic acid (AA), mediate neutrophil reprogramming. Blocking dietary intake of …

The Cardiovascular Care Of The Pediatric Athlete, Peter N Dean, Julie A Brothers, Kristin Burns, Jonathan B Edelson, Susan Etheridge, Dermot M Phelan, Keri Shafer, Chris Snyder, Silvana Molossi, Alfred Danielian, Eli M Friedman, Jeff Hsu, Mustafa Husaini, Eugene H Chung, Matthew W Martinez, Aaron L Baggish, Benjamin D Levine, Jonathan H Kim, American College Of Cardiology Sports & Exercise Cardiology Council

Faculty, Staff and Students Publications

Sports cardiology broadly encompasses the cardiovascular care of individuals who place a high premium on habitual exercise, sports performance, and/or sports competition. Some of the essential aspects within sports cardiology include the preparticipation cardiac evaluation and the management of cardiac diseases in athletes. Although most sports cardiology practitioners are trained in adult cardiology, a significant number of individuals who participate in sports are pediatric-aged, < 18 years old. Up to two-thirds of children in middle and high school participate in organized sports or are involved in nonorganized recreational sports. The cardiovascular care of pediatric-aged athletes can be challenging because many of the classic tenets and principles in adult sports cardiology do not fully generalize to pediatrics, and there is a lack of the evidence base that may be present for adult athletes. The epidemiology, presentation, and progression of cardiovascular diseases can be significantly different between pediatric and adult athletes. The evaluation of potential diseases and management considerations may also differ between pediatric and adult athletes. Similar to adults, there are "gray zones" where it is difficult to differentiate between normal exercise-induced cardiac remodeling and true cardiac pathology, but the additional lack of normative standards further complicates assessments in pediatric athletes. Management decisions for pediatric athletes are generally based on limited data but carry substantial short- and long-term implications. Thus, shared decision-making as part of the determination of clinical management strategies and for sports participation is critical and requires the participation of the parents or guardian(s). In this state-of-the-art review, key differences between pediatric and adult-aged athletes are highlighted. Specifically, how to define the "pediatric athlete," consider cardiovascular adaptations observed among pediatric athletes, determine preparticipation screening options and optimal symptom-driven evaluations in children, and consider best practices for pediatric athletes with several key cardiac conditions are detailed. The purpose of this document is to represent the first primary reference available to providers who care for pediatric athletes with cardiovascular concerns.

Disentangling Effects Of The Dr And Dq Isomers Encoded By The Hla Class Ii Haplotype Drb1*15:01/Dqb1*06:02 To Help Establish The True Risk Allele For Fviii Inhibitor Development In Hemophilia A, Vincent P. Diego, Bernadette W. Luu, Marcio A. Almeida, Jacob Galan, Eron G. Manusov, Juan M. Peralta, Satish Kumar, Joanne E. Curran, Harald H. H. Goring, Sarah Williams-Blangero, John Blangero, Tom Howard

School of Medicine Publications

Introduction: Hemophilia A (HA) patients (HAPs) with the human leukocyte antigen (HLA)-class-II (HLAII) haplotype DRB1*15:01/DQB1*06:02, and thus antigen presenting cells which express HLAII β-polypeptide chains that form heterodimers of DR15- and DQ6-serotypes, respectively, have an increased risk of developing factor (F)VIII inhibitors (FEIs)—neutralizing antibodies against the therapeutic-FVIII-proteins (tFVIIIs) infused to prevent/arrest bleeding. As DRB1*15:01 and DQB1*06:02 exist in strong linkage disequilibrium, association analysis cannot determine which is the actual risk allele.

Methods: To establish the true risk allele of this haplotype, we analyzed the tFVIII-derived peptides (tFVIII-dPs) bound to either the DR or DQ molecules that comprise the individual HLAII …

Abstract Title: What Is Chaga? Unique Biochemistry Of The Sterile Conk., Anna Kreynes

Oxford ICSB

Fungal based supplements or functional mushrooms are growing in popularity worldwide. Among them, Chaga is attracting increasing attention for its broad immune-modulatory and anti-inflammatory properties. Chaga is unique among “mushroom” supplements as it is technically neither a mushroom (fruiting body), nor a sclerotia, as some researchers assert, but rather a sterile conk or canker that forms on trees, infected and colonized by mycelia of the pathogenic fungus Inonotus obliquus. Commonly associated with birch (Betula spp.), I. obliquus also parasitizes other hardwood species such as alder (Alnus), beech (Fagus), and ash (Fraxinus), found in boreal forests of northern Europe, Asia and …

Understanding Challenges To Breast Cancer Screening For African American Women In Detroit: A Study Of Social And Healthcare Inequities, Miranda Goodson, Whitney Bowyer, Erika Lopez, Anna Lundh

Medical Student Research Symposium

African American (AA) women have lower adherence to breast cancer screening guidelines, which may contribute to delayed diagnoses and reduced survival rates. These disparities are often influenced by limited access to quality healthcare and persistent inequities faced within Michigan. With Detroit's population being 77% AA, examining studies focused on the experiences of Black women within urban healthcare networks is essential to understanding the connections between demographic, socioeconomic factors, and breast cancer outcomes. To assess these studies, a literature search was conducted using Ovid Medline yielding 24 associated articles.

Mammogram rates among AA women in Detroit remain low, reflecting a complex …

Ai Beliefs And Practices In Community College Classrooms, Julie Eng, Heather Umphlett, Jocelyn Gilchrist, Alicia Howell, Mary Ann Howell, Wendy Miller-Edwards, Laurel Pope

Inquiry: The Journal of the Virginia Community Colleges

The country, the Commonwealth of Virginia, and Virginia Community College System initiatives all promote generative AI within education. It is a topic of great concern and interest for higher education instructors, yet at the same time many faculty members feel uncertain about effectively integrating it into class material. To further add pressure to the AI explosion, community colleges particularly face a responsibility to prepare their students for success in this new AI-focused environment. In this article, seven faculty members from Camp Community College discuss the implications of generative AI programs, including subscriptions and chatbots, within their particular courses and how …

A Cross-Sectional Analysis: Employment And Its Impact On Physical Activity, Academic Performance, And Quality Of Life Among Bellarmine University Students, Orlando Exposito Nuñez

Undergraduate Theses

Introduction: Half of undergraduate students are employed, meaning they must balance work with academics, physical activity (PA), and personal responsibilities. This study examines the potential negative impact of employment on PA, academic performance, and quality of life (QOL) among college students. Methods: The cross-sectional survey comprised 125 Bellarmine University students (Age 21.07 ± 3.40; 52% female, 48% male). Measures included the RAND SF-36 for QOL, the International Physical Activity Questionnaire Short Form (IPAQ-SF), and a custom academic and employment questionnaire. Racial and ethnic demographics included White (75.2%), Black or African American (11.2%), Hispanic or Latino (15.2%), Asian (4.8%), Multiracial (4.8%), …

The Impact Of Perceived Discrimination On Mental And Physical Health Among The Hispanic Immigrant Population, Cheyla Tabares Cuesta

Undergraduate Theses

Discrimination has profoundly shaped the lives of individuals within disadvantaged communities, but its impact on mental and physical health has often been overlooked. In this project, I review literature on perceived discrimination based on immigrant status and its effects on psychological and physical health and examine a potential mediator and moderator of these relationships. Specifically, the relationships between immigration-based discrimination and both mental health and physical health may be mediated by perceived stress, meaning that discrimination may lead to higher stress levels, which results in poorer health outcomes. Furthermore, these relationships may be moderated by psychological resilience; individuals with higher …

Targeted Ehr-Based Communication Of Diagnostic Uncertainty (Tecu) In The Emergency Department: Protocol For An Effectiveness Implementation Trial, Danielle M Mccarthy, Sara Malone, Dimitrios Papanagnou, Benjamin E Leiby, Amandy M B Doty, Phillip Watts, Rahul Yadav, Julia K Pugliese, Jonathan Woodworth, Tracy Esteves Camacho, Efrat Kean, Kristin L Rising

Department of Emergency Medicine Faculty Papers

BACKGROUND: At least 37 % emergency department (ED) patients are discharged without a definitive diagnosis, resulting in diagnostic uncertainty. Transitions of care are high-risk periods for patient safety, especially for patients discharged with diagnostic uncertainty. Effective communication between clinicians and patients improves these care transitions. Previous research developed tools to support high quality discharge in the setting of diagnostic uncertainty, including: a communication checklist, a physician training program, and a patient-facing information sheet.

METHODS: This study aims to enhance transitions for patients leaving the ED with diagnostic uncertainty through an electronic health record (EHR)-based strategy. The intervention, the Targeted EHR-based …

Alterations In Dna Methylation, Proteomic, And Metabolomic Profiles In African Ancestry Populations With Apol1 Risk Alleles, Xinruo Zhang, Ashley W Scadden, Amarnath Marthi, Victoria L Buchanan, Yishu Qu, Kendra R Ferrier, Brian D Chen, Mariaelisa Graff, Julian Avila, Eric Boerwinkle, Steven Buyske, Clary B Clish, Dan Cruz, Myriam Fornage, Robert E Gerzsten, Christopher R Gignoux, Lashaunta Glover, Lifang Hou, Anne E Justice, Charles Kooperberg, Holly Kramer, Leslie Lange, Ruth J F Loos, Tara Matise, Josyf C Mychaleckyj, Opeyemi A Olabisi, Ulrike Peters, Laura M Raffield, Alex P Reiner, Stephen S Rich, Jerome I Rotter, Kent D Taylor, Bing Yu, Yinan Zheng, Kari E North, Amy K Mottl, Heather M Highland, Maggie A Stanislawski

Faculty, Staff and Student Publications

Key Points:

1. We aimed to elucidate potential methylation, proteomic, and metabolomic mechanisms by which APOL1 variants may be linked to kidney disease.

2. We report distinct methylation profiling between APOL1 risk allele carriers and noncarriers, many near APOL gene family.

3. We report higher APOL1 protein and lower C18:1 cholesteryl ester in two risk allele carriers.

Background: The APOL1 high-risk haplotype has been associated with CKD and the deterioration of kidney function, particularly in populations with West African ancestry. However, the mechanisms by which APOL1 risk variants increase the risk for kidney disease and its progression have not been fully elucidated.

Methods: …

Evaluating Wrist Placement And Signal Processing Techniques For Real-World Hrv Monitoring Using Ppg, Andrew Murphy

College of Computing and Digital Media Dissertations

This thesis investigates trade-offs between signal quality and data coverage in photoplethysmographic (PPG) heart rate variability (HRV) monitoring using wrist-worn devices. The goal was to evaluate whether wrist placement and signal processing techniques can improve measurement reliability in real-world conditions. Data was collected from healthy participants wearing smartwatches on both wrists during rest and a structured math task introducing natural wrist movement. Three distinct processing methodologies were compared, including a proposed Rolling-Standardized Derivative (RSD) approach. Results showed that while HRV signals from both wrists were highly correlated at rest, motion caused a measurable drop in signal quality and inter-wrist agreement, …

Lived Experiences Of Seropositive Msm Who Face Intersectional Stigma Regarding Hiv-Prevention And Care In California, Sagar Bedi

Walden Dissertations and Doctoral Studies

Individuals who are positive for Human Immunodeficiency Virus (HIV) and identify as MSM (men who have sex with men), a population disproportionately affected by this disease, face complex struggles due to interplay between multiple forms of stigma, disclosure, and HIV risk behaviors. This results in delayed testing, poor treatment adherence, and decreased engagement in care. Despite the growing body of research on HIV among MSM, very few studies have explored the complex ways in which multiple forms of stigma intersect and impact the lives of Seropositive MSM. The purpose of this qualitative study was to explore the perception and lived …

Mri-Based Digital Twins To Improve Treatment Response Of Breast Cancer By Optimizing Neoadjuvant Chemotherapy Regimens, Chengyue Wu, Ernesto A B F Lima, Casey E Stowers, Zhan Xu, Clinton Yam, Jong Bum Son, Jingfei Ma, Gaiane M Rauch, Thomas E Yankeelov

Faculty, Staff and Student Publications

We developed a practical framework to construct digital twins for predicting and optimizing triple-negative breast cancer (TNBC) response to neoadjuvant chemotherapy (NAC). This study employed 105 TNBC patients from the ARTEMIS trial (NCT02276443, registered on 10/21/2014) who received Adriamycin/Cytoxan (A/C)-Taxol (T). Digital twins were established by calibrating a biology-based mathematical model to patient-specific MRI data, which accurately predicted pathological complete response (pCR) with an AUC of 0.82. We then used each patient's twin to theoretically optimize outcome by identifying their optimal A/C-T schedule from 128 options. The patient-specifically optimized treatment yielded a significant improvement in pCR rate of 20.95-24.76%. Retrospective …

Living With Alzheimer’S: A Guide To How To Lower The Risk Of Memory Loss & Care For Those With Alzheimer’S, Mona Muzammil, Washain Muzammil

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Despite the frequent characterization of Alzheimer's disease as a “loss of self,"" this enlightening book demonstrates unequivocally that a person's unique self persists throughout the course of the disease. The important message in Caring for People with Alzheimer’s is how much can be done in care settings to support a person's sense of identity and thereby enrich the lives of people experiencing the many losses associated with dementia. Drawing from a diverse body of research, this book brings together the recommendations of the best thinkers and practitioners in multiple disciplines to illustrate the meaning of self and the importance of …

Shared Pathway Of Wdfy4-Dependent Cross-Presentation Of Immune Complexes By Cdc1 And Cdc2, Suin Jo, Ray A Ohara, Derek J Theisen, Sunkyung Kim, Tiantian Liu, Christopher B Bullock, Michelle He, Feiya Ou, Jing Chen, Sytse J Piersma, J Luke Postoak, Wayne M Yokoyama, Michael S Diamond, Theresa L Murphy, Kenneth M Murphy

2020-Current year OA Pubs

Priming CD8+ T cells against tumors or viral pathogens results largely from cross-presentation of exogenous antigens by type 1 conventional dendritic cells (cDC1s). Although monocyte-derived DCs and cDC2s can cross-present in vitro, their physiological relevance remains unclear. Here, we used genetic models to evaluate the role of cDC subsets in presentation of cell-associated and immune complex antigens to CD4+ and CD8+ T cells in vivo. For cell-associated antigens, cDC1s were necessary and sufficient to prime both CD4+ and CD8+ T cells. In contrast, for immune complex antigens, either cDC1 or cDC2, but not monocyte-derived DCs, could carry out cross-presentation to …

Life On The Dry Side: A Roadmap To Understanding Desiccation Tolerance And Accelerating Translational Applications, R A Marks, J T B Ekwealor, M A S Artur, L Bondi, T C Boothby, O M S Carmo, D C Centeno, K K Coe, H J W Dace, S Field, A Hutt, S Porembski, A Thalhammer, L Van Der Pas, A J Wood, P Alpert, D Bartels, S Boeynaems, M N Datar, T Giese, W I Seidou, S M Kirchner, J Köhler, U G V S S Kumara, J Kyung, R Lyall, B D Mishler, J B V T Ndongmo, M S Otegui, V Reddy, J Rexroth, S M Tebele, R Vanburen, J Verdier, U C Vothknecht, M F Wittenberg, E Zokov, M J Oliver, S Y Rhee

Duncan NRI Faculty and Staff Publications

To thrive in extreme conditions, organisms have evolved a diverse arsenal of adaptations that confer resilience. These species, their traits, and the mechanisms underlying them comprise a valuable resource that can be mined for numerous conceptual insights and applied objectives. One of the most dramatic adaptations to water limitation is desiccation tolerance. Understanding the mechanisms underlying desiccation tolerance has important potential implications for medicine, biotechnology, agriculture, and conservation. However, progress has been hindered by a lack of standardization across sub-disciplines, complicating the integration of data and slowing the translation of basic discoveries into practical applications. Here, we synthesize current knowledge …

Tobacco Smoke Exposure Is A Driver Of Altered Oxidative Stress Response And Immunity In Head And Neck Cancer, Yang Li, Pedram Yadollahi, Fonma N Essien, Vasanta Putluri, Chandra Shekar R Ambati, Karthik Reddy Kami Reddy, Abu Hena Mostafa Kamal, Nagireddy Putluri, Lama M Abdurrahman, Maria E Ruiz Echartea, Keenan J Ernste, Akshar J Trivedi, Jonathan Vazquez-Perez, William H Hudson, William K Decker, Rutulkumar Patel, Abdullah A Osman, Farrah Kheradmand, Stephen Y Lai, Jeffrey N Myers, Heath D Skinner, Cristian Coarfa, Kwangwon Lee, Antrix Jain, Anna Malovannaya, Mitchell J Frederick, Vlad C Sandulache

Faculty, Staff and Student Publications

Background: Exposomes are critical drivers of carcinogenesis. However, how they modulate tumor behavior remains unclear. Extensive clinical data show cigarette smoke to be a key exposome that promotes aggressive tumors, higher rates of metastasis, reduced response to chemoradiotherapy, and suppressed anti-tumor immunity. We sought to determine whether smoke itself can modulate aggressive tumor behavior in head and neck squamous cell carcinoma (HNSCC) through reprogramming of the cellular reductive state.

Methods: Using established human and murine HNSCC cell lines and syngeneic mouse models, we utilized conventional western blotting, steady state and flux metabolomics, RNA sequencing, quantitative proteomics and flow cytometry to …

Protocol For A Multisite, Observational Clinical Study Of The Association Between Skin Colour And Pulse Oximeter Accuracy In Children Undergoing Cardiac Catheterisation (Pach Study), Halley Ruppel, Liming Huang, Christopher J Petit, Athar M Qureshi, Christopher P Bonafide, Elizabeth E Foglia, Jeffery Feldman, Meghan B Lane-Fall, Jennifer M Lynch, Anna Chien, Michelle Dunn, Michael L O'Byrne

Faculty, Staff and Students Publications

Introduction: Prospective, real-world clinical studies of the association between skin color and pulse oximeter (SpO2) accuracy in children are needed to address the limitations of previous research. Such studies are essential for generating evidence for clinicians, regulators and industry. This is the protocol for a multisite study funded by the National Heart, Lung, and Blood Institute (R01HL171313; 1 January 2024-31 December 2028).

Methods and analysis: In this pragmatic, observational study conducted in three large paediatric cardiac catheterisation centres in the USA, children undergoing cardiac catheterisation with directly measured arterial oxygen saturation will be prospectively enrolled. The outcome variable (SpO2 bias) …

Determining Immune Activation In A Drosophila Model Of Als, Abrielle Fretz, Ryan Insolera

Medical Student Research Symposium

Determining Immune Activation in a Drosophila Model of ALS

Abrielle Fretz and Ryan Insolera

Background:

ALS is a progressive neurodegenerative disease that leads to muscle weakness and death. While most cases of ALS are sporadic, around 10% of cases are inherited. Of these inherited cases, one gene found to be involved is optineurin (OPTN). Mutated OPTN induces a cycle of cellular stress and death through NF-kB, a gene regulating immune activation and cell death. This dysregulation is thought to be a contributing factor to the disease processes of ALS.

In Drosophila, mutation of OPTN’s homologous gene, Kenny, was found to …

The Role Of Biological Sex In The Treatment Of Acute Cholecystitis, Desiree Duncan, Camden Gardner, Polina Chuikov, Matthew George, Sadaf Hashemian, Jeffrey Johnson, Md

Medical Student Research Symposium

Background

Some patients with symptomatic gallstones present with more severe disease, have more difficult anatomy and require more complex operations. While cholecystitis has a female preponderance, some observe a trend towards more challenging disease in male patients. The confluence of gender and patient acuity has not been thoroughly investigated. We hypothesize that males present with worse disease compared to females.

Methods

The analysis cohort of adults who underwent cholecystectomies was filtered from a five-hospital health system administration registry containing inpatients admitted from Fall 2015 to Fall 2021. The dataset contained demographics, health characteristics, and variables reflecting disease severity and acuity. …

A Long Non-Coding Erna Forms R-Loops To Shape Emotional Experience-Induced Behavioral Adaptations, Rose Marie Akiki

MUSC Theses and Dissertations

Emotional experiences often evoke neural plasticity that supports adaptive changes in behavior, including maladaptive plasticity associated with mood and substance use disorders. These adaptations are supported in part by experience-dependent activation of immediate-early response genes, such as Npas4. We discovered that a conserved, long non-coding enhancer RNA (lnc-eRNA) transcribed from an activity-sensitive enhancer produces DNA-RNA hybrid R-loop structures that support 3D chromatin-looping of the enhancer and proximal promoter and stimulus-induced, rapid Npas4 gene induction. We also show that this Npas4 lnceRNA and its R-loops are required for the development of behavioral adaptations produced by chronic psychosocial stress or cocaine exposure, …

The Impact Of Childhood Sexual Abuse On Resilience And Empathy In Adulthood: Exploring Psychological Outcomes And Interrelationships Among Adult Survivors, Helen Dao

NYMC Student Theses and Dissertations

Background: Childhood sexual abuse (CSA) is a traumatic experience that can have lasting psychological impacts on its survivors. Resilience and empathy are crucial for the recovery and social functioning of CSA survivors. However, the relationship between CSA and these constructs remains complex and not fully understood. Purpose: This study aimed to determine whether significant differences exist between individuals who have experienced CSA and those who have not. Additionally, the study also investigated the relationship between empathy and resilience. Methodology: A cross-sectional study was conducted with 36 adult participants, including CSA survivors and non-CSA participants. The Connor-Davidson Resilience Scale was used …

Social Support And Treatment Outcomes Among Multi-Drug Resistant Tuberculosis And Persons Living With Hiv In Nigeria, Abiodun Olusegun Hassan

Walden Dissertations and Doctoral Studies

An estimated 40% of people with tuberculosis (TB) are missed due to underdiagnosis, and among those previously treated TB cases, about a quarter develop drug-resistant TB in Nigeria. The emergence of multi-drug-resistant TB (MDR-TB) is stalling the effort towards TB’s control and eradication. Few studies have examined the impact of the psychosocial effect and support systems for TB, particularly for MDR-TB. In this quantitative, cross-sectional study, the predictive relationship between social support given to MDR-TB patients and their treatment outcomes was examined using secondary data of 594 MDR-TB cases enrolled between January 2018 and December 2021. The theoretical framework for …

Case Report: Myeloid Neoplasms With The T(3;12)(Q26.2;P13.1)/ Mecom-Etv6 Translocation: Report Of Two New Cases And Review Of The Literature, Soumya Mikkilineni, Juan Pablo Pineda-Reyes, Lindsay Wilde, Andres Ferber, Zi-Xuan Wang, Stephen Peiper, Guldeep Uppal, Md, Jerald Gong, Jinglan Liu

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

The MECOM (MDS1 and EVI1 complex locus) gene, located at 3q26.2, encodes an oncogenic transcription factor implicated in multiple signaling pathways. Rearrangements involving MECOM/3q26.2, including inversions, translocations, insertions and cryptic chromosomal changes, are observed in myeloid neoplasms and are associated with high-risk disease features and poor clinical outcomes. The translocation t(3;12)(q26.2;p13.1) is a rare genetic event, resulting in a fusion of the MECOM gene at 3q26.2 with the ETV6 gene at 12p13.1. To date, only 78 cases of hematologic neoplasms harboring t(3;12) have been reported in the English literature, primarily as case reports or case series. T(3;12) has …

Alpha-Synuclein Seed Amplification Assays: Data Sharing, Standardization Needed For Clinical Use, Hilal A Lashuel, D James Surmeier, Tanya Simuni, Kalpana Merchant, Byron Caughey, Claudio Soto, Mohamed-Bilal Fares, Roland G Heym, Ronald Melki

Faculty, Staff and Student Publications

Alpha-synuclein seed amplification assays can improve neurodegenerative disease diagnosis and care, but widespread use depends on a framework that standardizes protocols and encourages data sharing.

Culturally Appropriate Mental Health Awareness To Reduce Mental Health Stigmatization And Improve Quality Of Life Among People Of African Descent., Nicoline Frinwie

Walden Dissertations and Doctoral Studies

No abstract provided.

Bright And Photostable Yellow Fluorescent Proteins For Extended Imaging, Jihwan Lee, Shujuan Lai, Shuyuan Yang, Shiqun Zhao, Francisco A Blanco, Anne C Lyons, Raquel Merino-Urteaga, John F Ahrens, Nathan A Nguyen, Haixin Liu, Zhuohe Liu, Gerard G Lambert, Nathan C Shaner, Liangyi Chen, Kimberley F Tolias, Jin Zhang, Taekjip Ha, François St-Pierre

Faculty, Staff and Students Publications

Fluorescent proteins are indispensable molecular tools for visualizing biological structures and processes, but their limited photostability restricts the duration of dynamic imaging experiments. Yellow fluorescent proteins (YFPs), in particular, photobleach rapidly. Here, we introduce mGold2s and mGold2t, YFPs with up to 25-fold greater photostability than mVenus and mCitrine, two commonly used YFPs, while maintaining comparable brightness. These variants were identified using a high-throughput pooled single-cell platform, simultaneously screening for high brightness and photostability. Compared with our previous benchmark, mGold, the mGold2 variants display a ~4-fold increase in photostability without sacrificing brightness. mGold2s and mGold2t extend imaging durations across diverse modalities, …