Digital Commons Network^™

Olfaction And Plasma Biomarkers Of Alzheimer Disease And Neurodegeneration In The Atherosclerosis Risk In Communities Study, Srishti Shrestha, Xiaoqian Zhu, Michael E Griswold, Priya Palta, Kevin J Sullivan, Honglei Chen, Andrea Lauren Christman Schneider, Abhay Moghekar, Megan L Grove, Bharat Thyagarajan, James Russell Pike, Rebecca F Gottesman, B Gwen Windham, Thomas H Mosley, Jennifer A Deal, Vidyulata Kamath

Faculty, Staff and Student Publications

Background and objectives: Investigation of olfactory impairment, an early manifestation of Alzheimer disease (AD), in relation to plasma biomarkers of AD and neurodegeneration could provide insights into the disease's pathophysiology. Because few such studies based on large, diverse, community-based populations exist, we investigated associations of odor identification ability with plasma biomarkers of AD and other neurodegenerative pathologies in community-dwelling Black and White older adults.

Methods: This cross-sectional investigation included participants from the Atherosclerosis Risk in Communities study who attended visit 5 (2011-2013) and who completed olfactory testing and brain MRI examinations and had plasma biomarkers measured (namely, amyloid-beta [Aβ]42/Aβ40 ratio, …

Sickle Cell Disease Induces Chromatin Introversion And Ferroptosis In Cd8+ T Cells To Suppress Anti-Tumor Immunity, Zilong Zhao, Benxia Hu, Yalan Deng, Melinda Soeung, Jun Yao, Lanxin Bei, Yaohua Zhang, Pengju Gong, Lisa A Huang, Zhou Jiang, Jian Gao, Shuang Peng, Tina K Nguyen, Menuka Karki, Bora Lim, Cassian Yee, Jared K Burks, Qing Zhang, Li Ma, Jianjun Gao, Nizar M Tannir, Leng Han, Dihua Yu, Linghua Wang, Michael A Curran, Maria A Gubbiotti, Giannicola Genovese, Boyi Gan, Wenbo Li, Pavlos Msaouel, Liuqing Yang, Chunru Lin

Faculty, Staff and Student Publications

Understanding how genetic disorders affect CD8+ T cells in the tumor microenvironment is key to improving cancer immunotherapy. Individuals with sickle cell disease (SCD), the most prevalent inherited blood disorder, have a higher risk of developing certain cancers than the general population, but the mechanisms driving this increased risk remain unclear. Our study revealed that SCD altered CD8+ T cell 3D genome architecture, triggering ferroptosis and weakening anti-tumor immunity, thereby promoting tumor growth. Using murine and humanized SCD models, we found that disrupted chromosomal interactions in CD8+ T cells reduced the expression of anti-ferroptotic genes, including SLC7A11 and hydrogen sulfide …

Arid4b: An Orchestrator From Stem Cell Fate To Carcinogenesis, Rakhee Rathnam Kalari Kandy, Madan Kumar Arumugam, Mukesh Pratap Yadav, Bibhuti Bhusan Mishra, Jyotika Sharma

Faculty, Staff and Student Publications

All biological processes, from embryonic development to cancer, are tightly controlled by the interactions between genetics and epigenetics. An array of epigenetic modifications, such as DNA methylation, histone/chromatin modifications, and noncoding RNA-mediated targeting, are essential to regulate the heritable changes that occur during multiple cellular processes. A failure in proper regulation results in inappropriate gene expression that ultimately leads to pathological states. Groundbreaking advances in genomics and transcriptomics have revealed the potential involvement of epigenetics in various physiological and pathological states. The promising clinical and preclinical results shown by epigenetics drugs further underscore the central role of epigenetics in multiple …

Sickle Cell Disease Induces Chromatin Introversion And Ferroptosis In Cd8+ T Cells To Suppress Anti-Tumor Immunity, Zilong Zhao, Benxia Hu, Yalan Deng, Melinda Soeung, Jun Yao, Lanxin Bei, Yaohua Zhang, Pengju Gong, Lisa A Huang, Zhou Jiang, Jian Gao, Shuang Peng, Tina K Nguyen, Menuka Karki, Bora Lim, Cassian Yee, Jared K Burks, Qing Zhang, Li Ma, Jianjun Gao, Nizar M Tannir, Leng Han, Dihua Yu, Linghua Wang, Michael A Curran, Maria A Gubbiotti, Giannicola Genovese, Boyi Gan, Wenbo Li, Pavlos Msaouel, Liuqing Yang, Chunru Lin

Faculty, Staff and Student Publications

Understanding how genetic disorders affect CD8

Application Of Claims-Based Frailty Index To A Structured Electronic Health Record Data, Min Ji Kwak, Caroline Schaefer, Youngran Kim, Sunyang Fu, Chan Mi Park, Abhijeet Dhoble, Nahid Rianon, Holly M Holmes, Dae Hyun Kim

Faculty, Staff and Student Publications

Background: The Claims-based Frailty Index (CFI) has been developed and validated using Medicare claims data. However, whether CFI can be applied to structured electronic health record data has not been studied.

Methods: We applied the CFI to a structured electronic health record dataset (Explorys dataset) and a Medicare fee-for-service 5% sample data and compared the prevalence of frailty from each dataset, using the cohort of older adults. Then, we assessed the odds ratio and area under the curve of the frailty predicting adverse clinical outcomes, any hospital or emergency room visit, or any adverse drug events related encounter within 1 …

Structural Basis For The Substrate Specificity Of Helix Pomatia Amp Deaminase And A Chimeric Adgf Adenosine Deaminase, Gundeep Kaur, John R Horton, George Tzertzinis, Jujun Zhou, Ira Schildkraut, Xiaodong Cheng

Faculty, Staff and Student Publications

Helix pomatia AMP deaminase (HPAMPD), an enzyme enriched in the foot muscle of the mollusk H. pomatia, exhibits deaminase activity on adenosine-5'-monophosphate (AMP). HPAMPD is the first member of the adenosine deaminase-related growth factor (ADGF) family to prefer the nucleotide AMP over the nucleoside adenosine. To investigate the substrate selectivity of HPAMPD, we determined its structure in both the apo form and in complex with the adenosine analogs pentostatin and pentostatin-5'-monophosphate. Structurally, HPAMPD adopts a fold similar to human ADA2, an ADGF family member. HPAMPD has acquired the ability to interact with the 5'-monophosphate group of AMP through polar and …

Impact Of Vein-To-Vein Time In Patients With R/R Lbcl Treated With Axicabtagene Ciloleucel, Frederick L Locke, Armin Ghobadi, Et Al.

2020-Current year OA Pubs

Chimeric antigen receptor (CAR) T-cell products axicabtagene ciloleucel (axi-cel), tisagenlecleucel (tisa-cel), and lisocabtagene maraleucel (liso-cel) are approved for relapsed/refractory (R/R) large B-cell lymphoma (LBCL). Emerging evidence indicates that delayed CAR T-cell infusion, including prolonged time from leukapheresis to infusion, known as vein-to-vein time (V2Vt), may adversely impact clinical outcomes. We conducted a systematic literature review (SLR) and meta-analysis to identify differences in V2Vt in patients with R/R LBCL treated with axi-cel, tisa-cel, or liso-cel. The impact of V2Vt (< 28 days vs ≥28 to < 40 days vs ≥40 days) on effectiveness and safety outcomes was evaluated in patients treated with axi-cel enrolled in a post-authorization safety study using the Center for International Blood and Marrow Transplant Research data. SLR and meta-analysis showed that patients treated with axi-cel had the shortest median V2Vt (30.6 days) compared with tisa-cel (48.4 days) or liso-cel (35.9 days). Real-world analysis of patients treated with axi-cel demonstrated that V2Vt ≥40 days was associated with significantly lower complete response rate than V2Vt < 28 days (odds ratio [OR], 0.61) or ≥28 to < 40 days (OR, 0.66) and significantly worse overall survival than V2Vt < 28 days (hazard ratio [HR], 1.33) or ≥28 to < 40 days (HR, 1.36). Higher prolonged thrombocytopenia rates were observed in patients with axi-cel V2Vt ≥28 to < 40 days or ≥40 days compared with < 28 days (OR, 1.44 or 1.95, respectively). Together, these results show the impact of V2Vt on patient outcomes with axi-cel therapy and that earlier infusion with CD19-CAR therapies may be beneficial.

Engineering Lipid–Polymer Nanoparticles For Sirna Delivery To Cancer Cells, Arthur Manda, Abdulelah Alhazza, Hasan Uludağ, Hamidreza Montazeri Aliabadi

Pharmacy Faculty Articles and Research

Background: RNA interference (RNAi) is a powerful tool that can target many proteins without the expensive and time-consuming drug development studies. However, due to the challenges in delivering RNA molecules, the potential impact of RNAi approaches is yet to be fully realized in clinical settings. Lipid nanoparticles (LNPs) have been the most successful delivery system for nucleic acids, but targeted delivery to a solid tumor still eludes the developed LNPs. We hypothesized that specially designed low-molecular-weight PEIs can partially or completely replace the ionizable lipids for more accommodating vehicles due to the structural flexibility offered by polymers, which could …

One Health Integration To Control And Prevent Zoonoses: Application Of Organizational Theory Literature, Lisset M. Dumet Poma, Sherril Gelmon, Julia M. Goodman, Seth E. O’Neal

Hatfield Graduate Journal of Public Affairs

Zoonoses are infectious diseases transmitted between animals and people that disproportionately affect low- and middle-income countries (LMICs). The One Health (OH) approach aims to integrate systems, incentivizing collaboration among animal, human, and environmental systems to address zoonoses and improve health. Innovative solutions for effectively and sustainably achieving systems integration are needed. Organizational theories can facilitate the study of the context of OH implementation, applying comprehensive approaches that recognize the interconnections among organisms, the environment, and social systems, including the diverse entities needing integration (e.g., policy, community, public organizations). This narrative review examines organization and systems literature to provide recommendations for …

Parallel Use Of Low-Complexity Automated Nucleic Acid Amplification Tests And Lateral Flow Urine Lipoarabinomannan Assays To Detect Tuberculosis Disease In Adults And Adolescents Living With Hiv, Stephanie Bjerrum, Bada Yang, Johanna Åhsberg, Laura Olbrich, Mathias Weis Damkjær, Ruvandhi R Nathavitharana, Tobias Broger, Ioana Diana Olaru, Brittney Sweetser, Hayley Poore, Alia Razid, Alexander W Kay, Claudia M Denkinger, Ian Schiller, Nandini Dendukuri, Devan Jaganath, Andreas Lundh, Maunank Shah

Faculty, Staff and Students Publications

Background: Low-complexity automated nucleic acid amplification tests (LC-aNAATs) are molecular World Health Organization (WHO)-recommended rapid diagnostic tests (also known as mWRDs) widely used to diagnose tuberculosis disease. The lateral flow urine lipoarabinomannan assay (LF-LAM) is recommended by the WHO to assist in diagnosing tuberculosis disease amongst people with HIV. Previous systematic reviews have assessed the diagnostic accuracy of LC-aNAATs and LF-LAM used in isolation for the detection of tuberculosis, but in clinical practice the tests may be used in parallel (i.e. LC-aNAAT in combination with LF-LAM).

Objectives: To compare the diagnostic accuracy of the parallel use of LC-aNAAT on respiratory …

Loss Of Methyltransferase And Hypomethylated M6a Sarcomere Transcripts Leading To Early-Onset Dilated Cardiomyopathy, Sophie Marie Hand, Yi Zhao, Donna Li, Savanna Burke, Hee-Woong Lim, Jessie Yester, Vidu Garg, Federica Accornero, Xiao Li, Deqiang Li, Jihyun Jang

Faculty, Staff and Students Publications

No abstract provided.

A Library Of Lineage-Specific Driver Lines Connects Developing Neuronal Circuits To Behavior In The Drosophila Ventral Nerve Cord, Jelly H M Soffers, Erin Beck, Daniel J Sytkowski, Marianne E Maughan, Devasri Devarakonda, Yi Zhu, Beth A Wilson, Yu-Chieh David Chen, Ted Erclik, James W Truman, James B Skeath, Haluk Lacin

2020-Current year OA Pubs

Understanding developmental changes in neuronal lineages is crucial to elucidate how they assemble into functional neural networks. Studies investigating nervous system development in model systems have only focused on select regions of the CNS due to the limited availability of genetic drivers that target specific neuronal lineages throughout development and adult life. This has hindered our understanding of how distinct neuronal lineages interconnect to form neuronal circuits during development. Here, we present a split-GAL4 library composed of genetic driver lines, which we generated via editing the genomic locus of lineage-specific transcription factors and demonstrate that we can use this library …

Structure-Function Coupling In The First Month Of Life: Associations With Age And Attention, Ursula A Tooley, Jeanette K Kenley, M Catalina Camacho, Aidan Latham, Dimitrios Alexopoulos, Ashley N Nielsen, Tara A Smyser, Barbara B Warner, Joshua S Shimony, Jeffrey J Neil, Joan L Luby, Deanna M Barch, Cynthia E Rogers, Christopher D Smyser

2020-Current year OA Pubs

How brain structure relates to function is a critical and open question in neuroscience. Here, we characterize regional variation in structure-function coupling, capturing the degree to which a cortical region's structural connections relate to patterns of coordinated neural activity in healthy, term-born neonates (

Benefits Of A Faculty Mentored Personalized Instructional Program For Dental Students, Terry E. Hoover, Parvati H. Iyer Dr.

Pacific Journal of Health

The rigors and focus required of dental education often leaves students without time to pursue in-depth learning experiences in areas of personal interest related to dentistry/healthcare. In response to student interest in such learning and enrichment opportunities, a Personalized Instructional Program (PIP) course was created at the Arthur A. Dugoni School of Dentistry to allow students to engage in a faculty-mentored experiential learning project of their own creation. With its already condensed three-year curriculum, there was initial concern at Pacific Dugoni about whether an additional self-regulated experience could fit into students’ already busy schedules. Thirty hours of curricular time was …

Mechanisms Underlying Estrous Cycle-Dependent Changes In Incubated Cocaine Craving, Erin Elizabeth Wannen

Theses and Dissertations

Cues associated with cocaine use are one of the most common relapse triggers and understanding what promotes cue-induced cocaine craving and relapse is a critical question in the field. Human studies have shown that these measures are impacted by fluctuations in ovarian hormone levels, as higher levels of estradiol promote cue-induced cocaine craving in women while higher levels of progesterone reduce craving in both sexes. Enhanced or incubated cue-induced cocaine seeking or craving also changes across the rodent reproductive (estrous) cycle as levels of estradiol and progesterone fluctuate, with enhanced seeking behavior observed during the estrus stage of the cycle. …

Influence Of Filler Content And Polishing On Candida And Streptococci Biofilm Formation In Resin-Based Composites: An In Vitro Evaluation, Zahra Zareshahrabadi, Sarina Sahmeddini, Marzieh Meimandinezhad, Afsoon Tondari, Kamiar Zomorodian

Pacific Faculty Work

Aim: The purpose of this study was to investigate the impact of filler content and polishing of resin-based composites on in vitro biofilm formation of Candida and Streptococci species. Materials and Methods: Specimens of four commercially available resin-based composites including Z100, P60, Z250, and Z350, with different filler amounts and volumes, were prepared according to the manufacturer’s instructions. Each group was divided into polished and unpolished specimens, which were then placed in a 24-well tissue culture plate with microbial suspension and incubated. The XTT technique was used to evaluate biofilm formation. Results: Z250 resin-based composites, which had the highest percentage …

Determining Accurate Pore Structures Of Polypropylene Membrane For Ecmo Using Fe-Sem Under Optimized Conditions, Makoto Fukuda, Yoshiaki Nishite, Eri Murata, Koki Namekawa, Tomohiro Mori, Tsutomu Tanaka, Kiyotaka Sakai

Children’s Nutrition Research Center Staff Publications

Long-term ECMOs are expected to be put into practical use in order to prepare for the next emerging severe infectious diseases after the novel coronavirus pandemic in 2019-2023. While polypropylene (PP) and polymethylpentene (PMP) are currently the mainstream materials for the hollow fiber membranes of ECMO, the PP membrane coated with a silicone layer on the outer surface has also been commercialized. In this study, we sought a method to accurately observe the detailed pore morphologies of the PP membrane by suppressing irreversible changes in the morphology in SEM observation, which is a general-purpose observation with higher resolution. As a …

Radiotherapy Promotes Cuproptosis And Synergizes With Cuproptosis Inducers To Overcome Tumor Radioresistance, Guang Lei, Mingchuang Sun, Jun Cheng, Rui Ye, Zhengze Lu, Amber Horbath, David Huo, Shengrong Wu, Anagha Alapati, Sadhna Aggarwal, Zhihao Xu, Chao Mao, Yuelong Yan, Jun Yao, Qidong Li, Xiong Chen, Hyemin Lee, Li Zhuang, Dadi Jiang, Apar Pataer, Jack A Roth, Nicholas Navin, Albert C Koong, Mingjian James You, Steven H Lin, Boyi Gan

Faculty, Staff and Student Publications

Cuproptosis is a recently identified form of copper-dependent cell death. Here, we reveal that radiotherapy (RT) induces cuproptosis in cancer cells, independent of apoptosis and ferroptosis, and depletes lipoylated proteins and iron-sulfur (Fe-S) cluster proteins-both hallmarks of cuproptosis-in patient tumors. Mechanistically, RT elevates mitochondrial copper levels by upregulating copper transporter 1 (CTR1) and depleting mitochondrial glutathione, a copper chelator, thereby triggering cuproptosis. Integrated analyses of RNA sequencing (RNA-seq) from radioresistant esophageal cancer cells and single-cell RNA-seq from esophageal tumors of patients unresponsive to RT link radioresistance to the downregulation of BTB and CNC homology 1 (BACH1). This downregulation de-represses the …

Effect Of Olympic Weightlifting Training On Power Output And Landing Forces In Adolescent Female Athletes: A Quasi-Experimental Study, Emily Neff

Doctorate in Kinesiology

To examine whether a periodized, eight-week strength and conditioning (S&C) program incorporating Olympic Weightlifting (OWL) improves vertical jump height and reduces peak landing forces in adolescent female athletes. Despite the proven benefits of neuromuscular training (NMT), (Nessler et al., 2017; Mattu et al., 2022), access to high-skill S&C remains limited for this population (Sommi et al., 2018; Parsons et al., 2021). Twenty-four adolescent female athletes were divided into a training group (n = 15) and a control group (n = 9). The training group completed two one-hour sessions weekly for eight weeks. Pre- and post- intervention testing assessed vertical jump …

A Forward Genetic Screen Identifies Potassium Channel Essentiality In Shh Medulloblastoma Maintenance, Jerry J Fan, Anders W Erickson, Julia Carrillo-Garcia, Xin Wang, Patryk Skowron, Xian Wang, Xin Chen, Guanqiao Shan, Wenkun Dou, Shahrzad Bahrampour, Yi Xiong, Weifan Dong, Namal Abeysundara, Michelle A Francisco, Ronwell J Pusong, Wei Wang, Miranda Li, Elliot Ying, Raúl A Suárez, Hamza Farooq, Borja L Holgado, Xiaochong Wu, Craig Daniels, Adam J Dupuy, Juan Cadiñanos, Allan Bradley, Anindya Bagchi, Branden S Moriarity, David A Largaespada, A Sorana Morrissy, Vijay Ramaswamy, Stephen C Mack, Livia Garzia, Peter B Dirks, Xuejun Li, Siyi Wanggou, Sean Egan, Yu Sun, Michael D Taylor, Xi Huang

Faculty, Staff and Students Publications

Distinguishing tumor maintenance genes from initiation, progression, and passenger genes is critical for developing effective therapies. We employed a functional genomic approach using the Lazy Piggy transposon to identify tumor maintenance genes in vivo, and applied this to SHH medulloblastoma (MB). Combining Lazy Piggy screening in mice and transcriptomic profiling of human MB, we identified the voltage-gated potassium channel KCNB2 as a candidate maintenance driver. KCNB2 governs cell volume of MB-propagating cells, with KCNB2 depletion causing osmotic swelling, decreased plasma membrane tension, and elevated endocytic internalization of EGFR, thereby mitigating proliferation of MB-propagating cells to ultimately impair MB growth. …

Lrrc8 Channel Complexes Counterbalance Katp Channels To Mediate Swell-Secretion Coupling In Mouse Pancreatic Β Cells, Tarek Mohamed Abd El-Aziz, Chen Kang, Litao Xie, John D. Tranter, Sumit Patel, Rahul Chadda, Maria S. Remedi, Rajan Sah

2020-Current year OA Pubs

Insulin secretion from pancreatic β cells is initiated by membrane potential depolarization, followed by activation of voltage-gated Ca2+ channels to trigger Ca2+-mediated insulin vesicle fusion with the β cell plasma membrane. Here, we show that β cell swelling associated with glucose metabolism was sensed by LRRC8 channel complexes and contributed to insulin secretion. Hypertonic perfusate (360-380 mOsm) dose dependently impaired glucose-stimulated insulin secretion by counteracting β cell swelling. Hypotonic perfusate alone, independent of glucose stimulation or KATP channel closure, was sufficient to increase β cell intracellular Ca2+ and trigger insulin secretion. Inhibition of sodium-potassium-chloride cotransporter-1 with bumetanide, which diminished the …

Current Cutting-Edge Omics Techniques On Musculoskeletal Tissues And Diseases, Xiaofei Li, Liang Fang, Sade W Clayton, Dakota R Kamm, Cuicui Wang, Farshid Guilak, Simon Y Tang, Gretchen A Meyer, Jie Shen, Et Al.

2020-Current year OA Pubs

Musculoskeletal disorders, including osteoarthritis, rheumatoid arthritis, osteoporosis, bone fracture, intervertebral disc degeneration, tendinopathy, and myopathy, are prevalent conditions that profoundly impact quality of life and place substantial economic burdens on healthcare systems. Traditional bulk transcriptomics, genomics, proteomics, and metabolomics have played a pivotal role in uncovering disease-associated alterations at the population level. However, these approaches are inherently limited in their ability to resolve cellular heterogeneity or to capture the spatial organization of cells within tissues, thus hindering a comprehensive understanding of the complex cellular and molecular mechanisms underlying these diseases. To address these limitations, advanced single-cell and spatial omics techniques …

Agenda (Pdf), School Of Dentistry

LSU School of Dentistry Research Day

No abstract provided.

Persistent Activation Of Cardiac Fibroblasts Contributes To Myocardial Interstitial Fibrosis And Left Ventricular Dysfunction In Heart Failure, Rachel Biggs

MUSC Theses and Dissertations

Heart Failure (HF) is a complex clinical syndrome that is defined by an inability of the heart to meet the oxygen demands of the body. Myocardial interstitial fibrosis (MIF), the diffuse overaccumulation of extracellular matrix (ECM) proteins within the cardiac interstitium, contributes to ventricular dysfunction in HF. Mechanical devices designed to alleviate left ventricular deficiencies, termed left ventricular assist devices (LVADs), provide a pump that delivers oxygenated blood to the aorta thereby decreasing hemodynamic load on the ventricle. This end-stage HF therapy alleviates symptomatic burden for HF patients, however, LVAD support does not reduce MIF in the LV, and myocardial …

A Multi-National Questionnaire-Based Analysis Of Dental Students’ Knowledge Of The Management Of Deep Caries And The Exposed Pulp, Venkateshbabu Nagendrababu, Arindam Dutta, Ana Arias, Aleksandar Jakovljevic, Ahmed Hieawy, Frank C. Setzer, Jugoslav Ilic, Milos Beloica, Meric Karapinar Kazandag, Nandini Suresh, Paul V. Abbott, Raghavendra M. Shetty, Srinivasan Narasimhan, Victoria Sh Yu, Vellore Kannan Gopinath, Ya Shen, Henry F. Duncan

School of Dentistry Faculty Publications

Introduction and aims: To evaluate knowledge regarding the management of deep carious lesions and exposed pulps among undergraduate and postgraduate endodontic students from ten dental institutions across ten countries, and the impact of operator (material, antibiotic prescription) and patient-related (age, symptoms) factors on their treatment protocols. Methods: An online questionnaire was distributed to evaluate student knowledge of the management of deep caries and exposed pulp related to four clinical scenarios. Simple descriptive statistics were used to describe the data and McNemar tests were employed to identify significant differences between the scenarios. The P-value was set at 5%. Results: A total …

The Mechanisms Of Heterogenic Necrotic And Apoptotic Cell Death Fates In Human Epidermal Keratinocytes Following Uvb Exposure, Madeline Zoe Tara

Master's Theses

UVB radiation is a carcinogen that triggers inflammation and contributes to skin carcinogenesis. Although UVB exposure can induce apoptosis, this form of cell death is non-inflammatory and thus cannot explain the inflammatory response observed following UVB. Necrotic regulated cell death (RCD) pathways, namely necroptosis, pyroptosis, and PANoptosis, are inherently pro-inflammatory, and thus this study focused on characterizing these in irradiated human epidermal keratinocytes. Keratinocytes were irradiated, treated with cell death inhibitors, and analyzed for apoptotic and necrotic RCD markers using immunofluorescence (IF). Despite uniform UVB exposure, keratinocytes displayed heterogeneous cell death responses, and these findings were validated in ex vivo …

Translation Suppresses Exogenous Target Rna-Mediated Microrna Decay, Tianqi Li, Lu Li, Nicholas M Hiers, Peike Sheng, Yuzhi Wang, Conner M Traugot, Jessi F Effinger-Morris, Pitchaporn Akaphan, Yanyan Liu, Jiang Bian, Kotaro Fujii, Mingyi Xie

Faculty, Staff and Student Publications

MicroRNAs (miRNAs) interact with the target mRNAs to induce translational repression and mRNA degradation. Interestingly, miRNAs themselves can turnover rapidly when binding to a target RNA with extensive complementarity, a phenomenon called target-directed miRNA degradation (TDMD). To date, all validated TDMD "triggers" can induce miRNA degradation reside in non-coding regions of the RNA. We found that TDMD triggers placed in the 3' untranslated region (UTR) of a reporter degraded miRNAs more effectively than those in the coding sequence (CDS). Inhibiting translation of the reporter enhanced miRNA degradation by the CDS trigger, indicating that ribosome-free CDS triggers are more accessible to …

Evaluating Impacts Of Improved Flooring On Enteric And Parasitic Infections In Rural Households In Kenya: Study Protocol For A Cluster-Randomised Controlled Trial, Katherine E. Halliday, Stella Kepha, Hugo Legge, Elizabeth Allen, Robert Dreibelbis, Lynne Elson, Beatrice K. Kakoi, Carlos Mcharo, Sharon Muli, Jacinta Mwongeli, Doris Njomo, Margaret M. Njoroge, Victoria Ochwal, William E. Oswald, Martin Rono, Tuva K. Safari, Ulrike Filinger, James Wambua Kaluli, Charles S. Mwandawiro, Rachel L. Pullan

All Peer-Reviewed Publications

Introduction Earthen floors are often damp or dusty and difficult to clean, providing an ideal environment for faecal pathogens and parasites. Observational studies have revealed associations between household flooring and health outcomes, but robust experimental evidence is scant. This study will evaluate the impact of an improved household flooring intervention on enteric infections, soil-transmitted helminth (STH) infections and tungiasis through implementation of a cluster-randomised trial in two rural settings in Kwale and Bungoma Counties, Kenya. Methods and analyses 440 clusters (households) across both sites are allocated to control or intervention group, in which a low-cost, sealed, washable, cement-based floor is …

Rewired M6a Of Promoter Antisense Rnas In Alzheimer’S Disease Regulates Neuronal Genes In 3d Nucleome, Benxia Hu, Yuqiang Shi, Feng Xiong, Yi-Ting Chen, Xiaoyu Zhu, Elisa Carrillo, Xingzhao Wen, Nathan Drolet, Chetan Singh Rajpurohit, Xiangmin Xu, Dung-Fang Lee, Claudio Soto, Sheng Zhong, Vasanthi Jayaraman, Hui Zheng, Wenbo Li

Faculty, Staff and Student Publications

N6-methyladenosine (m6A) is an abundant internal RNA modification that can impact gene expression at both post-transcriptional and transcriptional levels. However, the landscapes and functions of m6A in human brains and neurodegenerative diseases, including Alzheimer's disease (AD), are under-explored. Here, we examined RNA m6A methylome using total RNA-seq and meRIP-seq in middle frontal cortex of post-mortem brains from individuals with or without AD, which revealed m6A alteration on both mRNAs and various noncoding RNAs. Notably, many promoter-antisense RNAs (paRNAs) displayed cell-type-specific expression and changes in AD, including one produced adjacent to MAPT that encodes the Tau protein. MAPT-paRNA is highly expressed …

Exploring Muslim American Attitudes Toward Genetic Testing: Perceptions, Barriers, And Ethical Considerations, Hannah Mahmoud

University Honors Theses

This thesis explores perceptions and attitudes toward genetic testing within the Muslim American community, a group often underrepresented in genomic research and public health discourse. Using a community-distributed digital survey, data was collected from 50 self-identified Muslim Americans on their familiarity with genetic testing, reproductive and ethical considerations, and the influence of religious factors. While only 18% had undergone genetic testing themselves, many were familiar through family or friends, and most expressed cautious interest—especially when results could influence future family planning. Education level, age, and religious values shaped both comfort and understanding.

A key theme was the desire for culturally …