bluuebunny/crossref_metadata_2025 huggingface dataset:
26 Mandibular Advancement vs Home Treatment for Primary Snoring: A Randomized Trial
Authors: Ioerger Patrick , Kallogjeri Dorina , Piccirillo Jay F.
Published: April 2023

OBJECTIVES/GOALS: The primary aim is to evaluate the efficacy of a Mandibular Advancement Device (MAD) vs conservative treatment for adults with non-apneic snoring, as measured by the sleeping partner. The secondary aim is to evaluate the effectiveness of treatment of snoring on the sleeping partner’s sleep quality. METHODS/STUDY POPULATION: We plan to enroll 60 pairs of primary snorers and their sleeping partners in our randomized clinical trial. Snorers will be randomized to either 4 weeks of conservative therapy, consisting of nightly Mometasone nasal rinse, breathe-rite strips, mouth taping, and lateral positional therapy, or 4 weeks of Mandibular Advancement Device therapy (MAD). 30 pairs of snorers and their partners will be in each arm. At follow up the primary outcome measure, the Clinical Global Impression of Improvement Scale (CGI-I), will be assessed by the sleeping partner to evaluate the response to snoring treatment. RESULTS/ANTICIPATED RESULTS: To date, there is no study reporting the rate of response in participants using MAD in Primary Snoring. Due to lack of preliminary data and effect size, we hypothesize that the rate of the responders in the MAD group will be 20% higher than the rate of responders in the active control group based on literature studies and preliminary results. A responder will be classified as someone whose sleeping partner rates on the CGI-I scale that the snoring was much improved or very much improved. MAD has been shown previously to be an effective therapy at treating sleep apnea and reducing snoring, and we anticipate it will continue to be so for patients who do not have sleep apnea. DISCUSSION/SIGNIFICANCE: Snoring is a nearly ubiquitous problem that prevents restful sleep for spouses of snorers, which is known to have detrimental health effects. Yet it does not have scientifically proven treatments. Our study will evaluate these treatments in an effort to improve the health of the sleeping partners.
27 Measuring Ocular Misalignment by Age at Space Center Houston to Inform Spaceflight Analysis
Authors: Johns Nabila Ali , Haberlen Sabina , Friello Phyllis , Perkins Kylie , Sarma Mallika , Shelhamer Mark
Published: April 2023

OBJECTIVES/GOALS: We developed a non-invasive test of ocular alignment (OA) as a measure of otolith asymmetry, which impacts vestibular function. This test has also been administered on commercial astronauts to study the effect of microgravity on vestibular function. We will assess OA test performance in ground subjects, which has not yet been characterized. METHODS/STUDY POPULATION: Subjects were recruited from visitors to Space Center Houston from June to October 2022. Participants wore red-blue glasses in a darkened room and aligned two vertically or torsionally misaligned line segments, one red and one blue, on a tablet. Each subject underwent 11 vertical and torsional trials. The remaining misalignment was used to calculate ocular misalignment. Subjects self-reported demographic and health data. We calculated descriptive statistics and explored the distribution of overall vertical and torsional OA and distributions by age. Next steps will establish the reliability of the outcome measures with intraclass correlation coefficients and analyze associations between demographic variables and health status with OA performance using linear regression analysis. RESULTS/ANTICIPATED RESULTS: A total of 143 participants (67 female) with a median age of 21 (range 5-74 years old) completed OA testing. Of participants, 64% identified as white, 10% as black, 14% as Asian, 3% as Native American, and 8% as unknown. This test battery was feasible to implement in this mixed-age sample, with a 95% completion rate. Median absolute vertical OA was 0.08 degrees (IQR = 0.17 degrees), and median absolute torsional OA was 0.80 degrees (IQR = 1.20 degrees). Visual analysis of plots of OA by trial number reveals no apparent learning effect within subjects, though some individuals had considerable variation in performance. Average absolute vertical ocular misalignment increased modestly when plotted by age (fitted regression line b = 0.0032 degrees per year of age, p = 0.004), unadjusted for potential confounders. DISCUSSION/SIGNIFICANCE: Ocular alignment testing was feasible in a mixed-age general population sample. Our findings will expand understanding of how OA varies with age. These results will be used to create a normative database to compare and inform analysis of OA results from commercial spaceflights, which include individuals of varying age and health statuses.
29 Molecular markers predict long-term recurrence following resection of clival and spinal chordomas: A multi-center study
Authors: Akinduro Oluwaseun , Alexander Yohan , Bon Nieves Antonio , Nathani Karim , Rose Peter , Link Michael , Van Gompel Jamie , Bendok Bernard , Pinheiro-Neto Carlos , Quinones-Hinojosa Alfredo , Bydon Mohamad
Published: April 2023

OBJECTIVES/GOALS: We aimed to find the histology-specific markers that were predictive of post-operative long-term chordoma recurrence (≤1 year) using trained multiple tree-based machine learning (ML) algorithms. METHODS/STUDY POPULATION: We reviewed the records of patients who had treatment for clival and spinal chordomas between January 2017 and June 2021 across the Mayo Clinic enterprise (Minnesota, Florida, and Arizona). Patients were excluded if they had no histopathology or recurrence as an outcome. Demographics, type of treatment, clinical and radiological follow-up duration, histopathology, and other relevant clinical factors were abstracted from each patient record. Decision tree and random forest classifiers were trained and tested to predict the long-term recurrence based on unseen data using an 80/20 split. The performance of the model was optimized using tenfold cross-validation. RESULTS/ANTICIPATED RESULTS: One hundred fifty-one patients were identified: 58 chordomas from the clivus, 48 chordomas of the mobile spine, and 45 sacrococcygeal. Subtotal Resection followed by radiation therapy, was the most common treatment modality, followed by Gross Total resection, then radiation therapy. The multivariate analysis defines the molecular predictors of recurrence following resection. S100 and pan-cytokeratin is more likely to increase the risk of post-operative recurrence (OR= 3.67; CI= [1.09,12.42], p=0.03). In the decision tree analysis, a clinical follow-up > 1897 days was found in 37 % of encounters and a 90% chance of being classified for recurrence (Accuracy= 77%). Factors predicting long-term recurrence are the patient’s age, type of surgical treatment, location of the tumor, S100, pan-cytokeratin, and EMA. DISCUSSION/SIGNIFICANCE: Our molecular and clinicopathological variables combined with tree-based ML tools successfully demonstrate a high capacity to individually identify the patient’s recurrence pattern with an accuracy of 77%. S100, pan-cytokeratin, and EMA were the histologic drivers of recurrence.
33 Non-AIDS Related Comorbidities In People Living With HIV in West Africa
Authors: Eckman Jared , Collins Lauren , Mehta Christina , Ofotokun Igho
Published: April 2023

OBJECTIVES/GOALS: METHODS/STUDY POPULATION: This study utilizes the IeDEA W. Africa cohort to evaluate the prevalence and burden of hypertension and diabetes type II among people living with HIV (PLWH) in sub-Saharan Africa (SSA), and to assess how sex and aging impact the development of these NACM. The cohort is a large, international collaboration across eight countries and 19 treatment centers. Established by the National Institute of Allergy and Infectious Diseases in 2006, the W. Africa cohort is now in its fourth renewal (2021-2026). Participating countries include Senegal, Mali, Cote d’Ivoire, Burkina Faso, Ghana, Togo, Benin, and Nigeria. Data are collected from affiliated cohorts in the regional data center every 24 months. The cohort currently includes >65,000 adult PLWH on anti-retroviral therapy. RESULTS/ANTICIPATED RESULTS: The prevalence of several NACM, such as hypertension and cardiovascular disease, have significantly increased among PWH over time, surpassing prevalence observed in the general population. We therefore expect similar patterns in the W. Africa IeDEA cohort and a high prevalence and burden of both hypertension and diabetes type II in this sample. Additionally, evidence suggests that increasing age and female sex serve as independent risk factors for the development of NACM in PLWH. We anticipate that both increased age and female sex, separately and synergistically, are associated with increased prevalence and burden of hypertension and diabetes type II in this cohort. DISCUSSION/SIGNIFICANCE: With more than 37 million people currently living with HIV, the HIV/AIDS epidemic continues to pose a serious threat to global public health. SSA bears a disproportionate burden of the epidemic with greater than two-thirds of global cases. NACM are now driving morbidity and mortality among PLWH, and increased age and female sex may modify this effect.
38 Plasma proteomic signature of motoric cognitive risk syndrome
Authors: Gomez Gabriela T. , Sathyan Sanish , Chen Jingsha , Fornage Myriam , Schlosser Pascal , Peng Zhongsheng , Cordon Jenifer , Palta Priya , Sullivan Kevin J. , Tin Adrienne , Windham B. Gwen , Gottesman Rebecca F. , Coresh Josef , Barzilai Nir , Milman Sofiya , Verghese Joe , Walker Keenan A.
Published: April 2023

OBJECTIVES/GOALS: Motoric cognitive risk (MCR) is a pre-dementia syndrome characterized by slow gait and subjective cognitive complaints. In the Atherosclerosis Risk in Communities (ARIC) study, we aim to (1) identify plasma proteins and protein modules associated with MCR and (2) compare the proteomic signature of MCR to that of mild cognitive impairment (MCI). METHODS/STUDY POPULATION: Nondemented ARIC participants were classified by MCR status (yes/no) according to a memory questionnaire and 4-meter walk. MCI status (yes/no) was classified by expert diagnosis using standardized criteria. We measured 4,877 proteins in plasma collected at ARIC Visit 5 (late-life) and Visit 2 (midlife) utilizing the SomaScan4 proteomic assay. Multivariable logistic regression”adjusted for demographic variables, kidney function, cardiovascular risk factors, and APOE4 status”related each protein to MCR at late-life. An FDR corrected P RESULTS/ANTICIPATED RESULTS: Proteome-wide association study among 4076 ARIC participants (mean age=75; 58% women, 17% Black, 4% MCR+, 21% MCI+; MCR+ and MCI+ groups overlapped) at late-life identified 26 MCR-associated proteins involved in metabolism, vascular/visceral smooth muscle, and extracellular matrix organization. At an uncorrected P DISCUSSION/SIGNIFICANCE: This proteomic characterization of MCR identifies novel plasma proteins and networks, both distinct from and overlapping with those of MCI, thus highlighting the partially divergent mechanisms underlying these pre-dementia syndromes. These findings may be leveraged toward dementia prognostication and targeted therapeutic approaches.
39 Prenatal antibiotic exposure and risk of childhood asthma among children with Down syndrome
Authors: Ammar Lin , Riddell Corinne A. , Ding Tan , Lee Rees L. , Maxwell-Horn Angela , Snyder Brittney M. , Gebretsadik Tebeb , Hartert Tina V. , Wu Pingsheng
Published: April 2023

OBJECTIVES/GOALS: Children with Down syndrome are at increased risk of respiratory diseases including asthma. Prenatal antibiotic exposure has been shown to be associated with the development of childhood asthma. We aim to estimate the association between prenatal antibiotic exposure and childhood asthma among children with Down syndrome. METHODS/STUDY POPULATION: We conducted a retrospective cohort study of mother-child dyads of children with Down syndrome who were born 1995-2013. Both children and mothers were continuously enrolled in the Tennessee Medicaid Program (TennCare). Prenatal antibiotic exposure was measured using mother’s prescription fill records. Childhood asthma was defined between age 4.5-6 years by asthma-related healthcare encounters and asthma-specific medication fills. We assessed the association between prenatal antibiotic exposure and childhood asthma among children with Down syndrome using modified Poisson regression adjusting for maternal age, race, residence, education, marital status, smoking during pregnancy, maternal asthma status, delivery method, number of siblings, and children’s sex. RESULTS/ANTICIPATED RESULTS: Among 346 mother-child dyads of children with Down syndrome, 273 (78.9%) children were exposed prenatally to antibiotics and 104 (30.0%) had asthma by age 4.5-6 years. Among those who were exposed to at least one course, the median antibiotic course equaled 2 (interquartile range: 1-4). Prenatal antibiotic exposure was associated with a 20% increase in risk of childhood asthma in the unadjusted analysis (risk ratio [RR] 1.20, 95% confidence interval [CI] 0.78, 1.83) and a 26% increase in risk after adjustment (adjusted RR 1.26, 95% CI 0.79, 2.01). DISCUSSION/SIGNIFICANCE: In our study population, the majority of children with Down syndrome were exposed to antibiotics prenatally and the prevalence of asthma was high. Prenatal antibiotic exposure was associated with an increased risk of childhood asthma among children with Down syndrome; however, this increase was not statistically significant.
44 Seminar series on Anti-Racism in Data and Analysis
Authors: Lapidus Jodi , Andrea Sarah , Laird Amy
Published: April 2023

OBJECTIVES/GOALS: The mission of our new Anti-racism in Data and Analysis seminar series is to provide a forum for researchers to discuss the ways that race and racism show up in data and analysis so that we as scientists may work together to advance racial equity and justice in society. METHODS/STUDY POPULATION: Our CTSA’s Biostatistics, Epidemiology, and Research Design (BERD) Program has initiated a seminar series that focuses on the ways that race and racism show up in all phases of the research process. We have hosted guest speakers who have shared their cutting-edge research as well as their reflections on race in research, and have facilitated breakout discussions to provide a forum for researchers to discuss specific questions. Our seminars are intended for practicing clinicians, clinical and population researchers, basic scientists, students, and others. RESULTS/ANTICIPATED RESULTS: We have sponsored three discussion-based seminars and two guest speaker seminars, and have several seminars of each type in the planning stages. We have collaborated with another CTSA to sponsor a discussion-based seminar at their institution, thus outfitting them with the tools to initiate a seminar series of their own. Our seminars have been extremely well attended, attracting researchers from a broad base of departments at our institution, from students to full professors. Feedback has been very positive; complaints cluster around paucity of similar opportunities, and students have asked why such material is not included as a required part of their respective training programs. DISCUSSION/SIGNIFICANCE: Race and racism permeate research, and failure to recognize and address the issues involved perpetuates racism in our society. Researchers want to learn more, but there are few opportunities for them to do so. Our seminar series provides one such forum to researchers at our institution and beyond.
45 Senolytic Therapy Transiently Reduces Inflammatory Markers in Primary Blood Mononuclear Cells of Individuals with Early Alzheimer’s Disease: Exploring the Conserved Transcriptional Response to Adversity as a Biomarker for Disease State
Authors: Garbarino Valentina R. , Xu Peng , Zhang Bin , Biggs Glenn , Gonzales Mitzi M. , Orr Miranda E.
Published: April 2023

OBJECTIVES/GOALS: Determine if the Conserved Transcriptional Response to Adversity transcriptomic profile established in primary blood mononuclear cells (PBMC) of chronically stress caregivers, is present in individuals with early Alzheimer’s disease. Chronic stress is a risk factor for Alzheimer’s, and may be an untapped biomarker for disease risk and pathology. METHODS/STUDY POPULATION: To collect preliminary data on the Conserved Transcriptional Response to Adversity profile in individuals with Alzheimer’s disease, we were able to utilize primary blood mononuclear cell samples from a small open label pilot study called Senolytic Therapy to Modulate the Progression of Alzheimer’s Disease, designed to clear stressed senescent cells. We hypothesized senolytics may beneficially reverse this stress profile. We developed a NanoString assay (measuring 19 inflammatory, 31 type-1 interferon, and 3 antibody synthesis genes) to compare these transcriptomic changes within 4 individuals measured at baseline, post-treatment with an intermittent 12-week senolytic therapy, and at an optional extended post-treatment follow-up time point > 3 months after their post treatment visit. RESULTS/ANTICIPATED RESULTS: There was relative downregulation of expression in transcription in 7 of 19 measured inflammatory genes (FOS, PTGS2, IL8, FOS, Il1b, JUNB, and JUN) in Alzheimer’s disease participants after receiving senolytic treatment (baseline vs. post-treatment). This is consistent with a decrease in the inflammatory arm of the Conserved Transcriptional Response to Adversity profile. These differences were not significant between baseline and the extended follow-up, indicative of a transient effect of senolytic. There were no changes in type 1 interferon or antibody synthesis genes. This data provides preliminary evidence for larger controlled studies to further establish this profile in Alzheimer’s disease, providing exciting evidence for transcript changes that may be reproducible with senolytic therapy. DISCUSSION/SIGNIFICANCE: Literature relevant to Alzheimer’s disease indicates global increases in inflammation paired with deficits in immune response, capturing some genes associated with the Conserved Transcriptional Response to Adversity. This profile may be a useful biomarker for prediction of disease severity or risk of dementia due to chronic stress.
58 Utilizing VA Data to Define Long COVID and Identify Patients at Risk
Authors: Elkin Peter L. , Resendez Skyler , Ruiz H. Sebastian , McCray Wilmon , Brown Steven H. , Nebeker Jonathan , Montella Diane
Published: April 2023

OBJECTIVES/GOALS: To determine the signs, symptoms, and diagnoses that are significantly upregulated in cases of long COVID while identifying risk factors and demographics that increase one’s likelihood of developing long COVID. METHODS/STUDY POPULATION: This is a retrospective, big data science study. Data from Veterans Affairs (VA) medical centers across the United States between the start of 2020 and the end of 2022 were utilized. Our cohort consists of 316,782 individuals with positive COVID-19 tests recorded in the VA EHR with a history of ICD10-CM diagnosis codes in the record for case-control comparison. We looked at all new diagnoses that were not present in the six months before COVID diagnosis but were present in the time period from one month after COVID through seven months after. We determined which were significantly enriched and calculated odds ratios for each, organized by long COVID subtypes by medical specialty / affected organ system. Demographic analyses were also performed for long COVID patients and patients without any new long COVID ICD10-CM codes. RESULTS/ANTICIPATED RESULTS: This profile shows disorders that are highly upregulated in the post-COVID population and provides strong evidence for a broad definition of long COVID. By breaking this into subtypes by medical specialty, we define cardiac long COVID, neurological long COVID, pulmonary long COVID, and eight others. The long COVID cohort was older with more comorbidities than their non-long COVID counterparts. We also noted any differences regarding sex, race, ethnicity, severity of acute COVID-19 symptoms, vaccination status, as well as some analysis regarding medications taken. DISCUSSION/SIGNIFICANCE: This profile can be utilized to decisively define long COVID as a clinical diagnosis and will lead to consistence in future research. Elucidating an actionable model for long COVID will help clinicians identify those in their care that may be experiencing long COVID, allowing them to be admitted into more intensive monitoring and treatment programs.
72 Establishing a histologically defined NAFLD cohort in the Million Veteran Program for further genetic analyses
Authors: Mukherjee Samiran , Vujkovic Marijana , Chang Kyong-Mi
Published: April 2023

OBJECTIVES/GOALS: Research in Non Alcoholic Fatty Liver Disease Genetics is ongoing. In this project, we aim to: 1.Identify and describe a histological NAFLD Cohort in the MVP Biobank by extracting liver biopsy proven NAFLD patients using natural language processing (NLP) 2.Confirm previously defined NALFD genetic loci (via look up-GWAS) in the histological NLP cohort METHODS/STUDY POPULATION: We will utilize the Million Veteran Program Biobank where a total of 10,959 subjects have been identified using liver biopsy reports in the EMR via CPT codes. Cases will be based on i) steatosis, steatohepatitis, inflammation or fibrosis in liver biopsy reports with ii) exclusion of other causes of liver disease. Controls will be comprised of the general VA population. In collaboration with the Applied NLP and Precision Medicine groups at the VA Informatics and Computing Infrastructure(VINCI); we will attempt to create and validate a histological cohort of NAFLD in the MVP database by: 1)Annotation of biopsy reports for the NLP algorithm 2)Automation/training of the NLP algorithm We will then perform a multi-ancestry genetic lookup of previously established genetic loci among the cases identified. RESULTS/ANTICIPATED RESULTS: Recently published data: the MVP NAFLD research led by Dr. Chang and Dr. Vujkovic had first validated a proxy NAFLD phenotype based on chronic alanine aminotransferase elevation (cALT). A GWAS was then performed using this phenotype which revealed 77 loci of genome-wide significance including 10 established NAFLD- and 52 ALT-associated SNPs were identified. Replication in external Liver Biopsy and Imaging Cohorts validated 17 SNPs of which 9 were novel. Preliminary data on Liver Biopsy reports: Using CPT codes for Liver Biopsy we estimated a total of 10,959 unique patients and 18,812 notes in the MVP biobank. We anticipate 2,000-3,000 NAFLD cases (based on the prevalence of NAFLD in the general population). Initial review reveals 90% concordance between analysts for the purposes of developing an NLP. DISCUSSION/SIGNIFICANCE: NAFLD is a major cause for morbidity and mortality in liver disease. Gold standard for diagnosis is based on biopsy. GWAS studies with biopsy proven phenotypes are limited. The study will aim to isolate a histologically defined NAFLD cohort in MVP to conduct further GWAS that can provide new clinically relevant knowledge for future research.

Contemporary Research Challenges
80 The Need for a Clinical and Translational Science Framework to Bridge Environmental Contamination Data and Male Reproductive Health
Authors: Vazquez-Casul Lizbeth , Velez-Fraguada Aryana A. , Jorge Juan Carlos
Published: April 2023

OBJECTIVES/GOALS: Although there is ample evidence that environmental contaminants impact reproductive health, the exact mechanisms of action, for the most part, remains unclear. We sought to determine whether known contaminants in Puerto Rico can contribute to the selection of a bioassay to add granularity to geospatial contamination data at the cellular level. METHODS/STUDY POPULATION: A PubMed literature search was conducted: Puerto Rico AND Vieques AND Environmental Contaminants AND Heavy Metals OR Phthalates OR Metals OR PCB OR Air Pollution OR CVOC . Additional inclusion criteria were free full text, English language and year of publication between 2000 to 2022 (n = 244 studies). References that were not related to Puerto Rico and environmental contaminants in air, soil, water, or vegetation were excluded. A second PubMed literature search was conducted to determine whether a clinical link has been established between contaminant exposure and the male reproductive system. Search terms were: heavy metals AND hypospadias OR cryptorchidism NOT female NOT animal NOT review , heavy metals AND male infertility NOT female NOT animal NOT review . The same strategy was used for phthalates. RESULTS/ANTICIPATED RESULTS: We found that 12 out of 15 studies that were conducted in the Archipelago of Puerto Rico between 2000-2022 reported heavy metals- and/or phthalates- contamination in soil and water. We also found that there is a paucity of clinical studies that consider plausible relationships between a given contaminant and congenital conditions or male reproductive function. Specifically, we found that heavy metal exposure has been linked to hypospadias (n=1 study), comorbidity of hypospadias plus cryptorchidism (n= 1 study) or male infertility (n=14 studies). Phthalates exposure has been linked to comorbidity of hypospadias and cryptorchidism (n=1 study) or male infertility (n=1 study). Male subfertility has been overlooked so far. We noted that Sertoli cell dysfunction has been linked to all of these conditions. DISCUSSION/SIGNIFICANCE: The geography of Puerto Rico provides an opportunity to close the gap in knowledge between environmental contamination and male reproductive health. Based on our findings, we propose that the use of a bioassay with an immortalized Sertoli cell line can uncover the cellular processes that may be affected in male reproduction upon contaminant exposure.
83 Wnt signaling attenuates mechanotransduction and protects against wound occlusion-mediated abolishment of regeneration
Authors: Oak Allen , Fan Chengxiang , Zheng Ying , Nace Arben , Yang Ruifeng , Ray Anisa , Hsieh Jen-Chih , Cotsarelis George
Published: April 2023

OBJECTIVES/GOALS: Current clinical practice recommends occlusive dressings (e.g., film and hydrocolloid) for wounds with variable regenerative capacities. However, clinical evidence suggests that occlusion may hinder regeneration. Our objective was to test the impact of occlusion on regeneration using animal models. METHODS/STUDY POPULATION: The murine wound-induced hair neogenesis (WIHN) is a well-established model of regeneration characterized by de novo hair follicle (HF) formation in the center of large full-thickness wounds. The quantity of neogenic HFs depends on the robustness of Wnt signaling. Optimal tissue mechanics is also required for WIHN. Utilizing the murine WIHN model, we tested the hypothesis that wound occlusion impedes regeneration. We determined how (i) the timing and duration of wound occlusion impacts WIHN, (ii) Wnt signaling influences the occlusion-induced effects on regeneration and (iii) occlusion alters the tissue mechanics of the wound, which establishes the morphogenetic field needed for WIHN. RESULTS/ANTICIPATED RESULTS: Occlusion completely eliminated WIHN. Only a brief period of occlusion between post-wound days 0-3 or 4-7 was sufficient to abrogate WIHN. Microarray and qPCR of open and occluded wounds demonstrated that occlusion promotes fibrosis by upregulating TGF-β2 and mechanotransduction, a mechanosensitive profibrotic pathway. Recruitment of these potent profibrotic pathways generated a symmetrically rigid wound incapable of de novo HF regeneration. Using transgenic animal models with enhanced Wnt signaling, we determined that the ligand-dependent Wnt signaling protected against the occlusion-induced inhibition of WIHN, as well as the occlusion-induced upregulation of both profibrotic pathways. DISCUSSION/SIGNIFICANCE: In animal models, occlusion promoted fibrosis at the expense of regeneration during acute wound healing. Augmented Wnt signaling protected against this effect. Occluding wounds may reduce regeneration. Further studies are warranted to validate these findings.
89 Bridging Cell Biology and Engineering Sciences: Interdisciplinary Team-based Training in Computational Pathology
Authors: Tan Myles Joshua T. , Gupta Akshita , Fermin Jamie L. , Border Samuel P. , Jain Sanjay , Tomaszewski John E. , Levites Strekalova Yulia A. , Sarder Pinaki
Published: April 2023

OBJECTIVES/GOALS: Computational pathology is an emerging discipline that resides at the intersection of engineering, computer science, and pathology. There is a growing need to develop innovative pedagogical approaches to train future computational pathologists who have diverse educational backgrounds. METHODS/STUDY POPULATION: Our work proposes an iterative approach toward teaching master’s and Ph.D. students from various backgrounds, such as electrical engineering, biomedical engineering, and cell biology the basics of cell-type identification. This approach is grounded in the active learning framework to allow for observation, reflection, and independent application. The learners are trained by a team of an electrical engineer and pathologist and provided with eight images containing a glomerulus. They must then classify nuclei in each of the glomeruli as either a podocyte (blue), endothelial cell (green), or mesangial cell (red). RESULTS/ANTICIPATED RESULTS: A simple web application was built to calculate agreement, measured using Cohen’s kappa, between annotators for both individual glomeruli and across all eight images. Automating the process of providing feedback from an expert renal pathologist to the learner allows for learners to quickly determine where they can improve. After initial training, agreement scores for cells scored by both the learner and the expert were high (0.75), however, when including cells not scored by both the agreement was relatively low (0.45). This indicates that learners needed more instruction on identifying unique cells within each image. This low-stakes approach encourages exploratory and generative learning. DISCUSSION/SIGNIFICANCE: Computation medical sciences require interdisciplinary training methods. We report on a robust approach for team-based mentoring and skill development. Future implementations will include undergraduate learners and provide opportunities for graduate students to engage in near-peer mentoring.
90 Developing a Clinical and Translational Research Pathway Across Three Health Sciences Disciplines
Authors: Lane Aric , Whipple Mark , Kim Sara , Lazarus Andrea , Lackey Russell
Published: April 2023

OBJECTIVES/GOALS: The design and phased roll-out of a CTSA competency-based longitudinal Clinical and Translational Research (CTR) curriculum pathway that can be integrated into the training of health sciences professional degree programs at three regional institutions. The outcome will be an increased number of health science professionals participating in CTR. METHODS/STUDY POPULATION: Based on an environmental scan, student surveys to assess interest, and feedback from regional stakeholders, a CTR pathway program was developed. The pathway curriculum will be grounded in 6 key focus areas derived from the Core Competencies in Clinical and Translational Research and prioritized based on regional need. The CTR pathway is currently being developed for the University of Washington School of Medicine, with additional implementations at the Washington State University School of Pharmacy and the Montana State University School of Nursing. Students will complete training modules and a mentored research project that is integrated into their specific course of study. RESULTS/ANTICIPATED RESULTS: In addition to the initial assessments and curriculum, an Advisory Committee will be established. Mentors, site leads, and research project partnerships across the region will be identified. Modifications will be made according to the local needs at both Montana State University and Washington State University. After the pilot launch and roll-out, the pathway curriculum will be adapted for other disciplines based on input from content experts and pathway evaluation data. Student retention in CTR fields will be tracked, with a goal to increase the number of CTR investigators and professionals across WWAMI in the next decade. CTR pathway processes and training resources will be shared with the CTSA consortium and other health sciences professional training sites. DISCUSSION/SIGNIFICANCE: Development of the CTR workforce is a priority to increase national capabilities in clinical and translational science. Building on a recognized need for targeted and longitudinal engagement, a CTR pathway is being established for health sciences students in the WWAMI region.
91 Educating the Clinical and Translational Research Workforce Online: A Case Study of Tufts CTSI I LEARN
Authors: Markman Kris M.
Published: April 2023

OBJECTIVES/GOALS: In November 2020, Tufts CTSI launched a new, upgraded learning management platform for disseminating self-paced online professional education for the CTR workforce. This poster will present a case study of the first two full years of Tufts CTSI I LEARN usage to illustrate how a local and national CTR workforce engages in free online training. METHODS/STUDY POPULATION: This study will employ a retrospective analysis of 2021 and 2022 learner usage data from the Tufts CTSI I LEARN platform. The population are individuals who have engaged in one or more courses over the specified time period, where engagement is defined as having viewed at least one content item in a course. Descriptive statistics will be used to show total engagement and unique learners each year by course, popular courses by year, as well as geographical distribution of learners across both years. Two sample t-tests will be used to compare the mean percentage of course completion and mean time spent in courses for 2021 and 2022. The Wilcoxon Rank Sum test will be used to compare median courses taken per learner each year. Finally, descriptive statistics will be used to show returning learners vs new learners from 2021 to 2022. RESULTS/ANTICIPATED RESULTS: Data from 2021 show 723 learners (436 unique) engaged in 49 courses across the year. Course engagement ranged from a max of 135 to minimum of 1 learner (Mean = 14.8, Median = 6). Mean percent of course content viewed was 69.4 (Median = 63.7%) and mean time spent on course content was 41.3 minutes (Median = 33.6). Preliminary data from Q1-Q3 of 2022 find 557 learners (328 unique) have engaged in 69 courses. Based on this trend, it is anticipated that 2022 will match or exceed 2021 engagement levels. Recently launched courses are expected to have higher average engagement than legacy courses ported from the previous version of the platform. DISCUSSION/SIGNIFICANCE: Results from this evaluation will suggest strategies to enhance engagement in current courses and identify opportunities for future course development. Increasing engagement in self-paced CTR education is an important complement to formal workforce development and training programs.
96 Evidence to impact: Developing a workforce of translational research professionals
Authors: Neumark Samuel , Noorloos Janine , Ferenbok Joseph
Published: April 2023

OBJECTIVES/GOALS: The goal of the Translational Research Program (TRP) at the University of Toronto is to provide structured and adaptive competency-based training around the translation, mobilization, implementation, and commercialization of research for the current and future Canadian healthcare workforce. METHODS/STUDY POPULATION: Guided by the Toronto Translational Framework, the TRP is a two-year hybrid master’s degree program that integrates courses, case-studies, mentorship, and experiential learning to facilitate real-world student-led translational projects. Focusing on skills development and competency-based assessment, the curriculum emphasizes ongoing reflection, interprofessional collaboration, and multidisciplinary problem-solving using human-centered principles. Learners identify problems using contextual inquiry to define unmet needs and frame design requirements. Systematic ideation is used to generate, select, and validate promising concepts for further iterative prototyping and evaluation. RESULTS/ANTICIPATED RESULTS: Throughout the program, students demonstrate a range of collaborative skills and activities around developing, assessing, and implementing new health interventions. Learners apply the Toronto Translational Framework and refine their professional competencies during the final year of the program in a student-led Capstone project. The unconventional combination of a guided framework and a learner-driven curriculum has produced over 120 graduates in a variety of careers within government, industry, clinical settings, and start-ups. The program’s focus on problem-solving and lifelong learning is growing Canada’s translational workforce and advancing translational health science education. DISCUSSION/SIGNIFICANCE: The TRP addresses the need to educate healthcare professionals in Canada about translational research and accelerate the transformation of scientific discoveries into tangible interventions that benefit human health, improve clinical medicine, and enhance patient care.
98 Forging a New (Digital) Path: Designing a Strategic Pilot to Engage and Educate the Public about Clinical Research on Social Media
Authors: Karimipour Nicki , Fabros Suail , Diaz Andrea , Wimpress Gordon , Lai Emily
Published: April 2023

OBJECTIVES/GOALS: To conceptualize, implement and evaluate a three-pronged social media plan with goals to: 1) disseminate information about the Southern California CTSI and its activities on multiple platforms; 2) educate the public about clinical research participation; 3) use storytelling methods to spread awareness about research careers. METHODS/STUDY POPULATION: We will start by creating a logic model to identify activities, outputs, short, medium and long-term outcomes of this social media innovation project, using CTSI and community stakeholder input (focus groups). This model will guide the creation of a comprehensive strategic social media plan that includes an editorial calendar for each platform, storyboarding and an operationalized narrative strategy, as well as KPIs relating to areas like reach, engagement, conversion, and sentiment. Collecting/analyzing these metrics will yield information about how the public feels about clinical research and will assist us in refining our content strategy. After completing formative research, we will create accounts on Instagram, TikTok, LinkedIn and Meta to complement our existing Twitter presence. RESULTS/ANTICIPATED RESULTS: We hope to identify which types of content lead to greater engagement and more positive sentiment on each platform, which will help us iteratively refine our content strategy. Examples of content type can include: imparting research-related information, debunking myths, providing career information, etc. Through this process we will also gain knowledge about what methods are more appealing to our users, such as narrative storytelling. Visually, we anticipate learning about what types of multimedia content works best as a mechanism to disseminate information about clinical research (e.g. video, photo, audio, or a combination). DISCUSSION/SIGNIFICANCE: In a post-pandemic world of dis- and misinformation, it is more important than ever to disseminate trusted, vetted information about clinical research in novel and engaging ways. Through this initiative we will gather information, metrics and key lessons learned to present back to CTSA hubs to inform their short and long-term social media strategies.
99 Grant Writing Program to Enhance Junior Faculty Research Funding Success
Authors: Veevers Jennifer , Ryan Patrick H. , Knapke Jacqueline M. , Blackard Jason T. , Schuckman Stephanie , Kissela Brett M. , Cushion Melanie T.
Published: April 2023

OBJECTIVES/GOALS: The grant writing process provides investigators with critical thinking, problem solving, and communication skills, crucial for personal and professional development. However, opportunities for junior faculty to learn these skills are highly variable. Thus, we developed a grant writing program to assist in the preparation of an NIH R proposal. METHODS/STUDY POPULATION: The R Club Grant Program was implemented in 2021 for junior faculty of the University of Cincinnati’s College of Medicine and Center for Clinical & Translational Science & Training (CCTST). The program consists of a series of workshops (e.g., How to Craft a Specific Aims Page, How to Construct a Competitive R01 Proposal) utilizing examples of successful proposals and grant review criteria to demonstrate how to translate a conceptual framework into a research proposal (level 1). All participants can receive constructive feedback on a Specific Aims page from an experienced grant writer (level 2), and for a select cohort, the program provides comprehensive scientific content edits and iterative feedback on a full research proposal, with a focus on grantsmanship, presentation, and overall competitiveness (level 3). RESULTS/ANTICIPATED RESULTS: Over three NIH grant cycles, the program to date has provided 38 early-career investigators with multi-level grant writing support. All participants attended the workshops and received supporting documents, 21 received feedback on a Specific Aims page, and 6 received one-on-one writing assistance on their full research proposal. Of the 6 investigators who received the greatest level of support, 3 have received NIH scientific review, with a 66.6% funding success rate for either an original (R01, n=1) or subsequent overlapping (R35, n=1) proposal. In a survey sent to workshop attendees, 100% of respondents (n=23) reported ( Strongly Agreed or Agreed ) that the training was a worthwhile investment in their professional development and 96% stated that they will be able to apply the knowledge and skills learned. DISCUSSION/SIGNIFICANCE: Initial evaluation measures suggest that grant writing support programs have great potential to enhance funding success rates. As the program evolves it will be crucial to evaluate both qualitative and quantitative feedback measures to ensure efforts are directed to the appropriate level(s) of service to maximize the funding success of our faculty.
100 Integration of the Group of Student Leaders to the Title V Medical Sciences Campus (MSC) Project from the University of Puerto Rico (UPR) to collaborate in increasing the number of undergraduate (UgS) and graduate students (GS) from Puerto Rico with the knowledge, skills, abilities and opportunities in Clinical and Translational Research (CTR)
Authors: Soto-Santiago Juan C , Rosado-Santiago Rico Edgardo L , Rubon Rico , Garcia Garcia , De Jesus-Ojeda Rico Lizbelle
Published: April 2023

OBJECTIVES/GOALS: A group of leading students was integrated as part of the collaborators of the Title V MSC Project with the objective of promoting UgS and GS from Puerto Rico to start and get involved in CTR with an interdisciplinary approach (IA) through the course of INTD 5998: Clinical and Translational Research: Introduction and Principles. METHODS/STUDY POPULATION: The Title V MSC Project of the UPR institutionalized the INTD 5998 course. This course offers UgS and GS the opportunity to start and get involved in CTR. Students with leadership from different universities and from different geographic regions of Puerto Rico were identified and recruited to collaborate in the recruitment of students interested in taking the INTD 5998 course. Since April 2022, the student leaders implemented different strategies to make known about the course and its benefits among their peers. RESULTS/ANTICIPATED RESULTS: For the course of INTD 5998 that began in August 2022, they achieved a contact list of 97 interested students from different geographic areas of Puerto Rico, 21 students applied for the course and 15 enrolled (71% of those who applied and 75% of the maximum course quota). DISCUSSION/SIGNIFICANCE: The student leaders have been an effective promotion and marketing strategy to make known the INTD 5998 course among their peers from the different Universities of Puerto Rico. Their integration as collaborators to the Title V MSC Project has been successful and valuable.
101 Leading Inter-Institutional Competency-based Interactive Workshops as an Opportunity for Professional Development for Clinical Research Professionals
Authors: Roth Mary-Tara , Lee-Chavarria Diana , Luebbers Kimberly , Leed Rana
Published: April 2023

OBJECTIVES/GOALS: Clinical research professionals (CRPs) are vital for high quality research. Professional development opportunities for CRPs help improve job satisfaction and retention. This poster will present data on peer-presenter satisfaction and their assessment of co-leading a workshop as an important professional development and networking activity. METHODS/STUDY POPULATION: Developing a Research Professionals Network Workshop is an important professional development opportunity for peer-presenters in a mentored, collaborative environment that encourages networking and inter-institutional teamwork. Presenters are connected by the leadership team and then work together to develop the workshop’s learning objectives, presentation, and activities. A summary of learner evaluations are provided to the presenting team to provide constructive feedback for future presentations. A survey to assess experience in leading the workshops is sent to presenters after the workshop to assess overall satisfaction and assessment of importance in their professional development. RESULTS/ANTICIPATED RESULTS: Presenter evaluation response data from the years of 2019-2022 showed high rates of agreement that presenters’ participation 1) increased their knowledge of the topic, 2) appreciated the support provided by the leadership team, 3) felt adequately prepared to lead the workshop, and 4) were overall satisfied with the experience. Questions specifically around the inter-institutional collaboration and professional development of the workshop experience were added in 2021 and similarly showed high marks of satisfaction. Qualitative response data showed that some presenters continued collaborations after workshop completion. DISCUSSION/SIGNIFICANCE: Overall results show that workshop presenters felt that leading an RPN workshop with collaborators from the other participating sites was a useful experience that supported their ongoing professional development. High marks on satisfaction by presenters is attributed to the multi-hub partnership and guidance from the leadership team.