bluuebunny/crossref_metadata_2025 huggingface dataset:
104 COVID-19 Exposure and Care-Seeking Behaviors Among Vulnerable Urban Adolescents and Young Adults–Baltimore, Maryland USA
Authors: Nickelberry Marshae , Matson Pamela A. , Agwu Allison , Van Eck Kathryn , Perin Jamie , Coleman Jenell , Trent Maria
Published: April 2022

OBJECTIVES/GOALS: This study seeks to determine the relationship between fear of COVID-19 infection and care-seeking behaviors including provider visit and telemedicine utilization among vulnerable adolescent and young adults in Baltimore, Maryland METHODS/STUDY POPULATION: Participants enrolled in the COVID-19 Youth study were 13-25 years old and recruited from four existing sexual health studies based in Baltimore, MD which focused on 1) PID, 2) HIV, 3) emerging sexually transmitted infections, and 4) a dyadic STI prevention, respectively. Participants agreed to be re-contacted for future studies and completed a telephone survey developed to inquire about the impacts of COVID-19 on care seeking behaviors. Bivariate analyses tested for correlations between fear of COVID-19 infection, demographic variables, and care-seeking behaviors. Multivariable logistic regression modeled associations between fear of COVID-19 infection and care-seeking behaviors. RESULTS/ANTICIPATED RESULTS: Adjusted multivariable logistic regression revealed a statistically significant association between fear of COVID-19 infection and having a provider visit; AYA who feared COVID-19 were at greater than two times increased odds of a provider visit compared to AYA who did not fear COVID-19 infection (OR: 2.37, 95%CI: 1.02, 6.15). Among those with a provider visit, fear of COVID-19 infection was associated with two-fold increased odds of having a telemedicine visit vs. an in-person visit (OR: 2.23, 95%CI: 1.09, 4.51), however this was not statistically significant in the adjusted model. There were however significant associations detected in the adjusted model for HIV status, insurance type and telemedicine utilization respectively. DISCUSSION/SIGNIFICANCE: This study demonstrates the ongoing need for health services during the recent pandemic and overall willingness of AYA to utilize telemedicine. Given the sexual health disparities faced by AYA, who bear more than half of the 50 million STI cases in the US, optimizing services for AYA is essential and consistent with new laws expanding telehealth use.
435 Age-dependent Regulation of Follicle-Stimulating Hormone N-glycosylation in Female Gonadotrope Cells
Authors: McDonald Rosemary , Eudy James , Southekal Siddesh , Gadu Babu , Kumar T. Rajendra
Published: April 2022

OBJECTIVES/GOALS: Age-specific N-glycosylation occurs on follicle- stimulating hormone (FSH) in pituitaries of post-menopausal women and results in a higher ratio of fully glycosylated to hypoglycosylated FSH. Our goal is to identify in vivo the N-glycosylation pathway enzymes and the regulatory mechanisms in gonadotropes of young and old female mice. METHODS/STUDY POPULATION: Pituitaries were isolated from female mice (at 4m and 8m; n=5 per group) carrying an Fshb-Cre transgene on a Rosa mT/mG genetic background and the GFP-tagged gonadotropes were purified by FACS. RNA-Seq analysis, and subsequent qPCR assays were performed on GFP+ cells from pituitaries of female mice at 4m (reproductively young), 8m (reproductively mid age) and â‰¥ 12m (reproductively old) of age. To identify the role of progesterone signaling in age-dependent N-glycosylation in gonadotropes, a gonadotrope-specific knockout of Pgr was achieved. Gonadotropes from these mutant mice at 4-, 8-, and â‰¥12 months of age (n=5 per group) were isolated for qPCR analysis of N-glycosylation enzyme gene expression. Predicted progesterone receptor (PR) promoter binding sequences was performed using JASPAR. RESULTS/ANTICIPATED RESULTS: RNA-seq identified 28 differentially expressed N-glycosylation enzyme-encoding mRNAs in gonadotropes of female mice at 4- and 8-months. Three genes showed significant differences between ages (Man2a1, Man1c1, and B4galt5.), and further qPCR analyses revealed six out of eight genes analyzed showed age-dependent expression, including Man2a1, Man1c1, and B4galt5. The promoters of all N-glycosylation enzyme genes showed strong predicted binding sequences for PR. Further qPCR analysis showed age-and genotype-dependent differences in N-glycosylation enzyme expression in Pgr cKO females, with the most striking differences observed at 13 months, where B4galt5, Man1a2, Mgat5, and Man2a1 were downregulated in Pgr cKO gonadotropes compared to controls. DISCUSSION/SIGNIFICANCE: We identified changes in the N-glycosylation machinery in female mouse gonadotropes and confirmed the age- and Pr-dependent regulation of the corresponding mRNAs. Our results provide insights into the mechanisms at the level of the pituitary by which old age-specific FSH glycoform regulates osteoporosis and weight gain in post-menopausal women.
440 Modulating decreases in Superior Colliculus activity through optogenetic activation attenuates seizures in the WAG/Rij genetic model of Absence Epilepsy
Authors: Palmer Devin D. , Campos-Rodriquez Carolina , Forcelli Patrick A.
Published: April 2022

OBJECTIVES/GOALS: While anti-seizure medications are effective, nearly one third of patients have seizures that go untreated. Prior studies using evoked seizure models have shown that activation of the Superior Colliculus (SC) display anti-seizure effects. Here we monitored and modulated the DLSC to suppress spontaneous seizures in a genetic model of epilepsy. METHODS/STUDY POPULATION: WAG/Rij rats (4 months old) were employed as study subjects. Animals were surgically prepared for virus injection (ChR2 excitatory opsin, or control vector), fiber optic implantation and cortical EEG for optogenetic studies. For In vivo electrophysiology, animals were implanted with a 16 wire multi-electrode array into the DLSC. In optogenetic experiments, we compared the efficacy of continuous neuromodulation to that of on-demand neuromodulation (real time detection of seizures) paradigms on a within-subject basis. We compared three stimulation frequencies on a within-subject basis (5, 20, 100 Hz). We quantified the number and duration of each spike wave discharge (SWD) during each two-hour-long trial. Electrode array single units were sorted and analyzed for activity before, during and after seizures. RESULTS/ANTICIPATED RESULTS: In vivo electrophysiology found there to be a significant decrease in single unit activity leading up to the start of SWDs. Interestingly, on-demand neuromodulation was effective in both females and males – where the greatest reduction in seizure duration was under 100 Hz light delivery. As expected, male and female animals injected with a control vector did not show a reduction in seizures in response to light delivery. In the open-loop (continuous) stimulation paradigm, optogenetic activation of the DLSC was without effect on the number or duration of SWDs at any of the frequencies examined. DISCUSSION/SIGNIFICANCE: SC activity is significantly decreased prior to the start of seizures. Furthermore, activation of the SC displays anti-seizure effects in a model of spontaneous seizures. A striking difference between open and closed-loop neuromodulation approaches underscores the importance of stimulation paradigm in determining therapeutic effect.
452 An Intrinsic Pathway in the Brain Underlying the Relationship Between Pain Catastrophizing and Chronic Pain in Temporomandibular Disorders
Authors: Cundiff-O’Sullivan Rachel L. , Massalee Rachel , Wang Yang , Colloca Luana
Published: April 2022

OBJECTIVES/GOALS: Pain Catastrophizing is a negative coping mechanism involving rumination, magnification, and helplessness and is associated with worse chronic pain. The neurobiological mechanisms underlying this relationship are poorly understood. We aim to examine the intrinsic activity of a functional pathway in patients with chronic orofacial pain. METHODS/STUDY POPULATION: This is the second phase of a parent study examining genetics, placebos, and the brain in temporomandibular disorders (TMD). We intend to recruit 120 of the original 398 TMD patients for this phase. Participants completed the Graded Chronic Pain Scale to assess TMD pain intensity and disability and the Pain Catastrophizing Scale. Behaviorally, pain catastrophizing scores and pain intensity and disability will be analyzed using structural equation modeling. Resting-state functional magnetic resonance imaging will be used to record intrinsic brain activity. The functional connectivity between the posterior cingulate, anterior insula, and periaqueductal grey will be assessed as a causal pathway relating pain catastrophizing to pain intensity and disability. Mediation analyses will be used to test causality. RESULTS/ANTICIPATED RESULTS: We anticipate that greater engagement in catastrophic thinking about pain increases the functional connectivity strength between the posterior cingulate, anterior insula, and periaqueductal grey, which ultimately leads to heightened perception of pain intensity and disability. Therefore, we expect to see increased functional connectivity in those with high pain catastrophizing levels as compared to those with low pain catastrophizing levels, and that this pathway will mediate the relationship between pain catastrophizing and pain intensity and disability. Further, we predict that helplessness will most strongly correlate with the change in functional connectivity as compared to rumination and magnification. Results will be presented in full at the conference. DISCUSSION/SIGNIFICANCE: Understanding how pain catastrophizing can influence chronic pain pathways will not only promote a more integrative approach to chronic pain management but will also help identify the mechanisms by which pain itself develops and persists in the particularly vulnerable pain population of TMD.
464 A Novel High Dose Rate Brachytherapy Device for Preventing Local Recurrence of Pancreatic Cancer Dosimetry Verification
Authors: Verma Rohan , Detels Kelsey , Hoopes Mary , Mohseni Niam , Shumyeko Dema , Yazdi Youseph
Published: April 2022

OBJECTIVES/GOALS: To demonstrate safety and limit damage to off-target organs, we will be determining dosimetry parameters through experimentation and Monte Carlo simulations with our brachy therapy applicator designed to improve upon current designs to treat a 3-dimensional volume. METHODS/STUDY POPULATION: Low-cost materials were used to manufacture our High Dose Rate (HDR) applicator and a readily available after loading system was used to load our configuration with a radioactive source. The dosimetry of our device was analyzed using commercially available software and external beam therapy films to generate depth dose profiles and superficial dose distribution. Additionally, we attempt to confirm Task Group No. 43 (TG-43) dosimetry parameters using Monte Carlo simulations for our device. These data were compared with currently available applicators used for intraoperative radiotherapy. RESULTS/ANTICIPATED RESULTS: We anticipate that we will be able to validate dosimetry parameters for our device in preparation for clinical use. We aim to show our dose distributions align well with proposed target volumes while considering the composition and shape of our applicator. We hope to demonstrate that, unlike current applicators, our design is more effective at treating a 3-dimensional target volume. DISCUSSION/SIGNIFICANCE: By 2040, pancreatic cancer will be the second-largest cause of cancer-related deaths. Even with current brachytherapy applicators, 30-40% of pancreatic cancer seems to recur near the surgical site after surgery. By preventing local recurrence, we hope to improve patient outcomes.
466 Convolutional Neural Networks and Machine Learning in the Identification of Ultrasonographic Features of Ovarian Morphology
Authors: Pea Jeffrey , Brendel Matthew , Lee Jean , Hajirasouliha Iman , Spandorfer Steven D. , Lujan Marla E.
Published: April 2022

OBJECTIVES/GOALS: To develop a two-staged convolutional neural network to identify the ovary and antral follicles within ovarian ultrasound images and determine its reliability and feasibility compared to conventional techniques in 2D and 3D ultrasonography image analysis. METHODS/STUDY POPULATION: De-identified and archived ultrasonographic images of women across the reproductive spectrum (N=500) will be used in the study. These ultrasound images will be labeled by experienced raters to train a two-staged convolutional neural network (CU-Net). CU-Net will first separate the entire ovary from the background and subsequently identify all antral follicles within the ovary. Following training, the CU-Net will evaluate a second set of independent images (N=100) to determine performance accuracy. Three specialized raters will establish the reliability and feasibility of CU-Net compared to conventional 2D and 3D ovarian ultrasound image analysis methods. RESULTS/ANTICIPATED RESULTS: The labeled training dataset of ovarian ultrasound images is expected to successfully train the CU-Net and allow for accurate identification of the ovary and the total number of antral follicles in the second testing set of ultrasound images. When compared to conventional 2D and 3D ultrasound image analysis methods, CU-Net is expected to have similar accuracy when compared to the gold-standard method (2D-Offline with Grid) and outperform other approaches, such as 2D-Real Time and 3D volume software (VOCAL and Sono-AVC). However, CU-Net is anticipated to be the fastest and most reliable method across users, supporting its clinical feasibility. DISCUSSION/SIGNIFICANCE: This study will immediately translate to providing a standardized platform that can improve the accuracy, reliability, and time demand required for the evaluation of ovarian ultrasounds across users and clinical and research settings.
475 Increasing Writing Self-Efficacy in Early-Career Researchers from Underrepresented Backgrounds: A Pilot Study
Authors: Mayowski Colleen A. , Rubio Doris M. , Proulx Chelsea N.
Published: April 2022

OBJECTIVES/GOALS: Writers with high self-efficacy perform better than writers with low self-efficacy regardless of writing ability. We investigated whether Shut Up & WriteÂ® (SUAW), a less-intensive writing intervention, produced gains in writing self-efficacy similar to those reported by intensive, longer-term interventions. METHODS/STUDY POPULATION: Meetings were held 2x/wk for 5 wks via Zoom, for 1 hour. Participants were encouraged to attend at least 1x/wk. The 1st few mins were devoted to a discussion of what each person planned to work on. Then, a timer was set and each writer muted themselves, shuttered their webcam, and wrote. When the alarm sounded, everyone returned to the group, and discussed what was accomplished. We measured writing self-efficacy before & after participating in SUAW using a pre-post survey design and used two-tailed paired t-tests to test for significant differences between pre- and post-test means. SUAW participants (n=23) were in 1 of 2 categories: 10 were self-selected LEADS scholars from MSIs, and 13 were medical students in a palliative care program. 86% were URB, 78% were female. RESULTS/ANTICIPATED RESULTS: Seven (30%) SUAW participants completed both the pre- and post-survey. Individuals showed significantly higher agreement from pre-to-post on the self-efficacy item “I have a generally positive attitude toward writing” (p=0.047) using a 5-point Likert scale from “completely agree” to “completely disagree.” Most other items did not indicate significant change between pre- and post-survey. The mean of the question “How satisfied were you with this Shut Up & Write activity?” which appeared only on the post-survey (n=10) was 1.10 (1=extremely satisfied, 5=extremely dissatisfied). Anticipated result: We suspect that the benefits of SUAW are best actualized by ongoing attendance, and that benefits are cumulative. DISCUSSION/SIGNIFICANCE: We found that participation in SUAW promotes writing self-efficacy in early-career URB researchers. This is an exciting finding because publishing ones research is essential for academic advancement, and research supports a relationship between writing self-efficacy and writing production. This may curtail URB scientists’ rate of attrition.
108 Chronic cadmium exposure is associated with cognition among adults over age 60 in a representative US sample
Authors: Jenson Tara E. , Bakulski Kelly M. , Dookeran Keith , Driscoll Ira , Kalkbrenner Amy E.
Published: April 2022

OBJECTIVES/GOALS: To examine the relationship between chronic cadmium exposure and cognitive function in later life, we estimated the association of urinary cadmium concentration on composite cognitive score, an important marker of progression toward dementia, while accounting for diet and key co-pollutants tobacco use and lead exposure. METHODS/STUDY POPULATION: After excluding those missing cognitive data (141) or covariate data (190), we included 760 persons >/= 60 years of age from the National Health and Nutrition Examination Survey (NHANES), 2011-2014. Urinary cadmium reflects prolonged exposure: mean=0.41Î¼g/L (standard deviation (SD)= 0.46Î¼g/L). Concurrent with urine sampling, neuropsychological tests tapping memory, executive function, sustained attention and working memory were combined into a standardized z-score (mean 0, SD 1, 25th and 75th percentiles −0.68 and 0.72, respectively). We used linear models to estimate change in cognition per cadmium interquartile range, incorporating NHANES sampling weights, adjusting for demographic characteristics, diet, lead, and active tobacco use (classified by self-report or serum cotinine levels >10ng/mL). RESULTS/ANTICIPATED RESULTS: A baseline model showed that an IQR (0.38 Î¼g/L) increase in urinary cadmium exposure was associated with a 13% standard deviation lower cognitive z-score (95%CI: −0.19, −0.06), after adjusting for sampling weight and urinary creatinine (measure of urine dilution). This association was attenuated to 7% standard deviation lower cognitive z-score (95% CI −0.13, −0.02) after adjusting additionally for demographic characteristic of sex, age, age^2, race/ethnicity, marital status, education level, and poverty income ratio. Models further adjusted for smoking status (active/former/never), blood lead concentration, and key dietary sources of cadmium showed IQR increase in urinary cadmium exposure associated with 7% standard deviation lower cognitive z-score (95%CI: −0.14, −0.01). DISCUSSION/SIGNIFICANCE: Our findings suggest cadmium exposure is associated with lower cognitive scores even after accounting for confounding influence of diet, tobacco use and lead exposure. Alternate explanations include selection bias due to dropping persons missing needed variables and using concurrent cognitive measures rather than cognitive measures of over time.
482 Evaluating the Effects and Contributing Factors to the “Hidden Curriculum” in Medical School
Authors: Ryder C. Yoonhee , Irani Sanaya , Andreski Patti , Grob Karri
Published: April 2022

OBJECTIVES/GOALS: The “hidden curriculum” is a set of unofficial rules outside of the formal curriculum that allows medical students to succeed. It is often not accessible to those who are first-generation in medicine. This study created a novel survey tool to directly evaluate the hidden curriculum, its contributing factors, and its effects on students. METHODS/STUDY POPULATION: Using available literature as a guide, a novel survey tool to evaluate different aspects of the hidden curriculum was created. This survey consists of 17 Likert scale questions on topics varying from sense of belongingness to dress code, self-guided studying, mentorship, and confidence in knowing how to succeed. This survey tool was embedded into a larger survey evaluating health disparities and diversity, inclusion, accessibility, and justice (DEIAJ) in the curricular and extracurricular spaces. This survey packet was administered to all medical students at a large U.S. medical school. RESULTS/ANTICIPATED RESULTS: 166 medical students from all years responded to this survey. 70% were female, 27% male, and 3% non-binary or prefer not to say. 67% of respondents agreed or strongly agreed that there is a hidden curriculum accessible to only those who have family members in medicine. 57% agreed or strongly agreed that the medical school gave them the adequate training and resources to succeed. 48% agreed or strongly agreed that they would perform better academically if they had more money with 11% stating they often feel embarrassed in a professional setting due to lack of money. Fellow classmen, faculty members, and upperclassmen were identified as the most useful resources to learn how to succeed in medical school. Students on average reported feeling like they knew what to do to succeed in medical school half of the time. DISCUSSION/SIGNIFICANCE: This data strongly supports the existence of a hidden curriculum and gives insight into the importance of financial support for low-income students and peer support groups for those who do not have family members in medicine. This data will be used to inform future interventions to address the hidden curriculum.
109 Flavored tobacco sales restrictions and e-cigarette use among high school students in California
Authors: Dove Melanie , Gee Kevin , Tong Elisa
Published: April 2022

OBJECTIVES/GOALS: Flavored tobacco sales restrictions (FTSRs) are implemented to reduce access to flavored tobacco products. We examined the association between seven local FTSRs implemented in 2018/2019 and e-cigarette use among high school students in the Bay Area region of California. METHODS/STUDY POPULATION: We analyzed data from the California Healthy Kids Survey using a difference-in-differences (D-I-D) strategy. We compared pre- and post-policy changes one year after implementation in current tobacco use (e-cigarettes and cigarettes) among students exposed (n=20,832) versus unexposed (n=66,126) to a FTSR. Exposed students attended school in a city with a FTSR. Other outcomes included ever use of e-cigarettes, ever marijuana use in an e-cigarette, and ease of access to e-cigarettes. RESULTS/ANTICIPATED RESULTS: Pre- to post-policy, current tobacco use did not change in exposed students (e-cigarette: 10.5% to 11.1%; cigarette 2.6% to 2.5%) and decreased in unexposed students (e-cigarette: 12.8% to 11.4%; cigarette: 2.2% to 1.7%). FTSRs were not associated with a change in odds of current e-cigarette (adjusted D-I-D OR: 1.25, 95% CI: 0.95, 1.65) or cigarette use (adjusted D-I-D OR: 1.24, 95% CI: 0.94, 1.63), relative to unexposed students. For both exposed and unexposed groups, there was a 54-57% increased odds of reporting ease of access to e-cigarettes and a 29-35% increased odds of ever using marijuana in an e-cigarette. No change was detected for ever e-cigarette use. DISCUSSION/SIGNIFICANCE: Local FTSRs in California were not associated with a decrease in e-cigarette or cigarette use one-year post-implementation. Increased ease of access and marijuana use may be explanatory factors.
495 Mothers Leading Science: A program to diversify and develop the research workforce
Authors: Lamere Michelle , Rhode Sara , Fulkerson Jayne , Ingbar David , Hart Allyson
Published: April 2022

OBJECTIVES/GOALS: The purpose of this group is to foster professional and personal growth as leaders, provide peer mentoring, integrate the roles of scientist, woman, and mother, and build a self-sustaining network of peers for ongoing support throughout their careers in an academic setting. METHODS/STUDY POPULATION: - Study population: 12 Health sciences research faculty (50% protected research time); identify as female; mother of school-age and/or younger children Methods: Year-long program; including a 2-day retreat based on Brene Brown's Dare to Lead RESULTS/ANTICIPATED RESULTS: - Despite the pandemic, 100% of participants continued in the program over the one-year duration and met the attendance requirement of 75% - Screening for burnout was effective - facilitator was able to intervene when severe burnout was noted.
496 Transforming the pipeline towards independence in Clinical and Translational Research (CTR) through opportunities in research environments for underrepresented health professions faculty and students: The Title V Cooperative Project between University Puerto Rico Medical Sciences Campus and Universidad Central del Caribe (Title V Coop)
Authors: Irizarry-Ramirez Margarita , Ruiz-Izcoa Elaine , Rafael Moscoso-Álvarez José , García García Rubén
Published: April 2022

OBJECTIVES/GOALS: Diversity and interdisciplinarity are required for successful and transformational CTR. The Title V Coop developed a training curriculum for underrepresented in CTR health professions faculty and students, successfully integrating them in CTR teams. The curriculum exposed students to theory and then a practicum. METHODS/STUDY POPULATION: The curriculum and practicum included basic aspects of training in research including responsible conduct of research and the design of a proposal. The practicum focused on the organizing of a research team identified as a Clinical and Translational Mentoring Team (CTMT) and the implementation of the proposed project. Emphasis was placed on the importance of the mentor-mentee relationship, including peer mentoring. Participants were recruited from across all post-secondary institutions in Puerto Rico emphasizing the participation of faculty(UgF) and students (UgS) from undergraduate programs in health professions and the participation of graduate students GS) as peer mentors. Research mentors for each of the CTMTs were selected from faculty members that are established researchers. RESULTS/ANTICIPATED RESULTS: Twenty-seven (27) proposals from the CTMTs were approved. A total of one hundred and eight (108) participants were or are still engaged in the proposed research. Thirty-four faculty (34) members participated as mentors and three (3) peer reviewed publications have been done. Health professions and science fields represented by the participants include: Nursing, radiology technician, audiologist, medical students, basic science in biology or chemistry, public health and industrial microbiology among others. We will showcase the diversity in research topics and teams composition and their accomplishments. DISCUSSION/SIGNIFICANCE: The Title V Coop has been successful in integrating individuals from academic programs underrepresented in research into interdisciplinary and interprofessional research teams, launching a model for diversity and interdisciplinarity and representation of health professionals at all levels of research.
501 Training the translational research workforce: evolution of the Master of Science in Clinical and Translational Investigation Program at the University of Miami CTSI.
Authors: Rundek Tatjana , Koru-Sengu Tulay , Giobio Gigi , Das Rosalina
Published: April 2022

OBJECTIVES/GOALS: The goal of this study is to highlight the unique characteristics of Miami CTSIs Master of Science in Clinical and Translational Investigation (MSCTI) as part of CTSIs overall translational workforce development program and to describe program outcomes. METHODS/STUDY POPULATION: The MSCTI at the University of Miami offers a structured, individualized, and mentored educational program that trains students in the principles and practice of translational science and clinical research. Based on student feedback and needs assessment, three courses were specifically created for the program to include additional scientific cognates and promote essential skills for the translational research workforce – team science and entrepreneurship, research ethics, and writing for clinical and translational science. A fourth course on applied statistics is currently under development that provides training in practical statistical knowledge required for clinician-researchers. Career trajectory of graduates and academic output were tracked through surveys and secondary data collection. RESULTS/ANTICIPATED RESULTS: The MSCTI Program has enrolled 76 students over its lifetime, including KL2 scholars, NIH K scholars and T32 trainees; with 25% of students holding foreign degrees. In addition to traditional outcomes such as funding and publications, qualitative case studies will highlight scientific impact and career progress of students. The program has performed exceptionally well in recruiting underrepresented persons in research, with 41% of the students identifying as Hispanic, and 52% of the students as female. Of the graduates, 84% have gone on to achieve leadership positions in NIH and pursue research careers in academic institutions, while 16% have moved to industry, government, or non-profit careers. Overall, 92% of graduates were engaged in research after two years of graduating from the program. DISCUSSION/SIGNIFICANCE: Miami CTSIs MSCTI Program has trained students with a wide range of incoming experience to establish successful careers in clinical and translational research and is a critical component of CTSIs translational workforce development program.
513 Towards Obtaining One Billion Recordings Per Cubic Millimeter for the Validation of Focused Ultrasound Transducers: How Can Robust Systems Help With Translational Activities?
Authors: Kerensky Max , Liang Ruixing , Curry Eli , Thakor Nitish , Theodore Nicholas , Manbachi Amir
Published: April 2022

OBJECTIVES/GOALS: The first aim was to construct a controlled and high resolution FUS water tank characterization system with 1 micron step-sizes. The second aim was to create two unique standardized protocols for mapping the generated acoustic field from FUS transducers; protocol one maps the full 3D field while protocol two rapidly detects changes to the original plot. METHODS/STUDY POPULATION: To accomplish aim one, the focused ultrasound mapping platform was constructed with a water conditioning unit for water degassing and temperature control, a three-axis stage with 1 micron step-size capabilities, and a data plotting software. To measure the outcomes of aim one, the water temperature was monitored, and axis step sizes were measured through ten independent axis translation recordings. To accomplish aim two, FUS acquisitions were executed at different resolutions. For FUS localization at the cellular level, a 1-5 micron step size is required. Once the initial scan was performed, duplicate scans were executed to detect inherent perturbations or errors in the system. Once calculated, the best methods of detecting true changes to FUS signals are proposed. RESULTS/ANTICIPATED RESULTS: The FUS characterization system maintained water temperature and performed 1 micron step-sizes. While pre-existing platforms have demonstrated a resolution of one thousand recordings per cubic millimeter, the proposed system (time and computing power willing) can record one billion recordings per cubic millimeter. In practice, a resolution of 20 micron was sufficient for non-cellular level FUS characterizations. Successive 2D scans were reliably stacked to form a 3D rendering of the generated acoustic field with the average focal point intensity yielding a 1% coefficient of variation between identical scans. This inherent variation can be used as the threshold of significance for true change detection; to rapidly detect changes to the FUS signal, sampling can be performed at regions of high baseline values. DISCUSSION/SIGNIFICANCE: Focused ultrasound medical devices are gaining popularity for treatments including tumor ablation, neuromodulation, and drug delivery; however, the field lacks a standardized method to characterize these FUS transducers. The presented platform and protocols enable a rigorous and high quality translation through verification and validation.
521 Supporting research through the development of self-service tools and operational transparency.
Authors: Rodgers Larisa , Ostasiewski Brian , Trost Lindsay , Ford William , Horvath Michael , Viviano Irina , Futrell Wendell
Published: April 2022

OBJECTIVES/GOALS: The Informatics Program in the Wake Forest CTSI is experiencing rapid growth. To accommodate an influx of both staff and clinical investigators this program Invests resources in self-service tools to increase researcher capabilities Automates resource intensive activities Creates transparency of operational processes for researchers. METHODS/STUDY POPULATION: Self-service tools (immediate/automated) The i2b2 tool queries clinical data for feasibility numbers and cohort identification; and provides demographic breakdowns of patient sets The Data Puller tool pulls identified patient data (with IRB approval) The SKAN NLP tool pulls aggregate numbers from over 3 million clinical notes Automation A custom-built tracking system automates parts of tracking requests for data and checking IRB protocols Operational transparency The Data Request Dashboard shows requesters information about their request and where it is in the process of being fulfilled The Data Quote tool was constructed leveraging the integrated CTSA informatics network and uses details of the request to estimate how long it will take to complete. RESULTS/ANTICIPATED RESULTS: i2b2 has had over 300 unique users each year; 80% are faculty or research staff, 20% are clinicians or students. From 2017-2021 there have been an average of 300 i2b2 queries and 45 Data Puller pulls each month. SKAN has had 58 unique users since its implementation in late 2020, averaging 5 new users per month. The automated data request tracking system took approximately 30 staff hours to create and saves an average of 4 hours of staff time per week. It also decreases human error by pulling/pushing information directly between systems. The Informatics program has received positive feedback from researchers who use the Data Request Dashboard. The Data Quote Tool is being used to give standardized quotes to researchers. DISCUSSION/SIGNIFICANCE: Investing resources in developing and implementing self-service tools and operational transparency ultimately reduces overall resource consumption, saving staff and investigator time and effort. This enables the Informatics program to maintain a high standard of service while experiencing rapid growth.
522 Recruitment Optimization: A Strategic Approach to Integrating Recruitment Services through a Coordinated Multidisciplinary Team
Authors: Hudson Brenda L , Claxton Gina , Egan Carmel , Hardwick Emily , Shwery Michelle , Bork Jason , Amin Waqas , Anderson Angela , Wiehe Sarah , Moe Sharon
Published: April 2022

OBJECTIVES/GOALS: Provide recruitment support via a coordinated application of strategic operations, participant engagement practices, and informatic capabilities best practices. Improve study success through the discovery of optimal recruitment practices, development of needed services, leverage of existing resources, infrastructure and guidance. METHODS/STUDY POPULATION: The optimization effort utilized a variety of methods for engaging participants and obtaining information related to the recruitment needs of study teams. Information was collected from an advisory board and through surveys of a diverse group of investigators and research coordinators examining recruitment barriers as well as current and possible future recruitment services. A workflow of the investigative teams recruitment experience was created to identify strengths, gaps and areas for improvement. This information was used to develop a set of recommendations for the Indiana CTSI leadership. Three pillars were tasked with tackling specific areas through an integrative and collaborative approach: (1) study planning and operations, (2) informatics, and (3) participant engagement and health literacy. RESULTS/ANTICIPATED RESULTS: Key resulting recommendations included: creating a recruitment navigator to direct clients to the most appropriate service(s), adding a community engaged staff member and a digital public engagement specialist to the recruitment services team, redesigning the website navigations, creating participant payment guidelines, creating participant engagement principles guidelines, improving informatics support, and continual evaluation of best practices and innovations in recruitment support. An intake and follow-up survey were created for clients to assess services offered, those used, and ultimately the success of those services in improving recruitment measures. DISCUSSION/SIGNIFICANCE: The optimization efforts have shown a positive response from study teams demonstrated by an uptick of support requests. By taking an intensive strategic planning approach to streamlining recruitment services, the Indiana CTSI has leveraged existing resources to better serve clients in need of critical recruitment assistance.
COVIDNearTerm: A simple method to forecast COVID-19 hospitalizations
Authors: Olshen Adam B. , Garcia Ariadna , Kapphahn Kristopher I. , Weng Yingjie , Vargo Jason , Pugliese John A. , Crow David , Wesson Paul D. , Rutherford George W. , Gonen Mithat , Desai Manisha
Published: April 2022

Introduction:

COVID-19 has caused tremendous death and suffering since it first emerged in 2019. Soon after its emergence, models were developed to help predict the course of various disease metrics, and these models have been relied upon to help guide public health policy.

Methods:

Here we present a method called COVIDNearTerm to “forecast” hospitalizations in the short term, two to four weeks from the time of prediction. COVIDNearTerm is based on an autoregressive model and utilizes a parametric bootstrap approach to make predictions. It is easy to use as it requires only previous hospitalization data, and there is an open-source R package that implements the algorithm. We evaluated COVIDNearTerm on San Francisco Bay Area hospitalizations and compared it to models from the California COVID Assessment Tool (CalCAT).

Results:

We found that COVIDNearTerm predictions were more accurate than the CalCAT ensemble predictions for all comparisons and any CalCAT component for a majority of comparisons. For instance, at the county level our 14-day hospitalization median absolute percentage errors ranged from 16 to 36%. For those same comparisons, the CalCAT ensemble errors were between 30 and 59%.

Conclusion:

COVIDNearTerm is a simple and useful tool for predicting near-term COVID-19 hospitalizations.
128 Creating a data repository of sociomic factors to further characterize clinical outcomes and disease progression in patients with asthma
Authors: Makhni Sonya , Barbarioli Bruno , Krishnan Sanjay , Ozik Jonathan , Lazenby Kevin , Sleiman Marc , Bhargava Ankur , Solway Julian , Cohen Ellen , Volchenboum Samuel
Published: April 2022

OBJECTIVES/GOALS: To assemble publicly-available, proprietary, and geocoded datasets about social, environmental, behavioral, and psychological exposures experienced by children with asthma, to provide a technical overview of data aggregation, management, and integration processes utilized, and to build predictive models using sociome and clinical data. METHODS/STUDY POPULATION: Publicly-available data involving census information, crime, green space, building permits, vacant and abandoned buildings, traffic (City of Chicago data portal), pollution and weather (National Oceanic and Atmospheric Administration), and noise (Array of Things project) were assembled. We placed a local instance of the Pelias geocoder on the UChicago Center for Research Informatics HIPAA-compliant infrastructure. The UChicago Clinical Research Data Warehouse will be leveraged to obtain clinical information for children diagnosed with asthma at UChicago Medicine between 2007 and 2021. The address of each child will be subjected to geocoding, and this information will be aligned with imported sociome data. A model will be built to account for each sociome elements contribution to asthma outcomes. RESULTS/ANTICIPATED RESULTS: Here we are creating sustainable and scalable ways for collecting, standardizing, and sharing real-world sociome data, simultaneously linking those data back to patient information. With this work, we aim to demonstrate feasibility of a data-commons-as-a-service for clinical and sociome data and to provide technical specifications and descriptions of processes employed. Creating generalizable and scalable infrastructure to support research of social and environmental impacts on clinical outcomes is critical, and our work will provide a framework to be used in other disease states. Further, this infrastructure will facilitate the application of advanced analytical tools and visualization platforms to accelerate the study of diseases and lead to new insights into factors influencing outcomes. DISCUSSION/SIGNIFICANCE: Beyond focusing on and treating biological mechanisms of disease, advancing health also requires addressing adverse consequences of sociome factors on clinical outcomes. We describe an innovative process to comprehensively codify and quantify such information in a way suitable for large scale co-analysis with biological and clinical data.
130 Examining the Role of Community Engagement Studios & Community Experts in Translational Research: A Thematic Analysis
Authors: Kas-Osoka Chioma N. , Israel Tiffany , Ahonkai Aima
Published: April 2022

OBJECTIVES/GOALS: 1. Describe the importance of community engaged research. 2. Explore the impact of participating in Community Engagement Studios from the perspective of the community expert. 3. Explain how Community Engagement Studios can positively impact clinical and translational sciences. METHODS/STUDY POPULATION: Stakeholders who participate in CE Studios are defined as community experts (CEs); care-givers, patients, researchers, etc. They are not classified as research participants, but rather consultants, who are designated with the task of providing input on the specified research study. CEs were recruited in a variety of formats such as clinics, social media, and other community-based settings. To be eligible for the study, CEs had to participate in at least one CE Studio prior to data collection. Data was collected from an online survey from April to September of 2019. One hundred and fifteen CEs participated in the study. We conducted thematic analysis on a total of 233 participant responses to three open-ended questions assessing attitudes towards research, desire to engage in research, and understanding of research. RESULTS/ANTICIPATED RESULTS: Ten major themes emerged from the data: involvement, togetherness, trust, value, confidence, community engagement, community connectedness, encouraging others to participate, increase knowledge and awareness, and respect. A major overarching theme of inclusion was presented in the data. Findings from this study indicate that CE Studios provide a space for CEs to gain a better understanding of the multi-faceted research process, offer insight into ways to include historically excluded populations, and increase trust, confidence and respect for researchers and the research process. Moreover, community experts felt connected to their community by participating in CE Studios and expressed interest in encouraging others to participate. DISCUSSION/SIGNIFICANCE: CEs are a crucial component of the research process, and their experiences should be utilized and reflected upon as we work to reduce health disparities. CE Studios serve to build trust, identify strategic areas of improvement in research, and provide a foundation to introduce community members to the multiple ways to engage in research.
137 Community Grand Rounds (CGR): A Community and University Partnership on Chicagos South Side Addressing Social Determinants of Health through Health Education
Authors: Miller Doriane
Published: April 2022

OBJECTIVES/GOALS: University faculty partner with Community Consultants (CC) to: 1) identify health concerns of Chicagos South Side residents, 2) provide information regarding resources that address community health concerns, and 3) disseminate the model across the Institute for Translational Medicines (ITM) institutional partners. METHODS/STUDY POPULATION: CCs met twice monthly with University faculty and staff to identify CGR topics, delivery format, and audience development strategies. Faculty from the University of Chicago and community experts presented on identified health topics. Traditionally held in a community setting, CGR moved to a virtual format due to the pandemic. Recent topics covered included issues around the impact of COVID-19 on African American and LatinX communities and vaccine hesitancy. Audience members were surveyed at the end of each session and provides information on the quality and impact of the content. Twice during the season, partners debriefed on the effectiveness of the partnership and program. A plan was developed to deploy CGR across the ITM partners. RESULTS/ANTICIPATED RESULTS: Since 2010, there have been 63 CGRs, and over 5370 attendees. To date, 95% of audience members report that the content of CGR is of value and would recommend it to others. Audience members surveyed report knowledge gains about the topics presented, satisfaction with venues and speakers, and support the continuation of the series. Despite having to move to a virtual format due to the COVID-19 pandemic, audience members continue to attend CGR and rate the program as valuable and something that they would recommend to others. CCs report commitment to the partnership and CGR. CGR served as a connector for audience members to COVID-19 resources such as grief support groups and financial assistance. Loyola University, an ITM partner, implemented the CGR model, with more planning to do the same. DISCUSSION/SIGNIFICANCE: CGR is effective at providing health information in a community setting. CGRs success is due to the commitment of its partners and its ability to respond to community needs. During the pandemic, attendance at each virtual CGR remained steady and audience feedback remained positive. CGR continues to serve as a connector to valuable resources.
138 What are the Risk Factors Affecting PrEP Utilization Among Black Cisgender Women Who Are At Higher Risk Of HIV Acquisition?
Authors: Mathurin Alene , Palladino Kim Lisa , Tafuto Barbara , Lechner Doreen W , Swaminathan Shobha
Published: April 2022

OBJECTIVES/GOALS: The HIV acquisition rate is higher for cisgender black women in the United States. This population has a much lower use of FDA-approved pre-exposure prophylaxis drug (PrEP) for HIV prevention. This systematic literature review examines factors that hinder PrEP use among cisgender black women. METHODS/STUDY POPULATION: PubMed, CINAHL, and Cochrane were used to conduct a systematic literature search. Inclusion and exclusion criteria were predetermined to narrow down the search and to identify the appropriate studies. The retrieved literature was exported to EndNote for deduplication. The literature was then uploaded into Rayyan for title and abstract screening. The two collaborators were blinded to limit bias. Literature characterized as conflict was resolved by an independent, third collaborator. Full-text screening of the selected studies was done and a PRISMA flow diagram was developed for identification, screening, eligibility, and to detail included literature. RESULTS/ANTICIPATED RESULTS: 185 articles were obtained from the systematic literature search. 172 were excluded and 13 full-text articles were accessed for eligibility. One was removed. 12 studies involving 974 study participants met inclusion criteria for analysis. Despite the disproportionally high risk of HIV infection, black women only represented 29% of the study participants. Top three barriers to low PrEP use were stigma, socio-economic factors, and personal factors. Stigma included concerns about HIV and sexuality. Socio economic barriers were related to homelessness and low income. Personal factors included substance abuse, incarceration, and commercial sex work. The data confirms that these risk factors were not always rigid but changed based on patient characteristics and external factors. DISCUSSION/SIGNIFICANCE: The study outcomes confirmed a multitude of risk factors that serve as impediments in the use of PrEP among cisgender black women. When these risk factors are identified and addressed, the decision to use PrEP among cisgender black women may increase, therefore this warrants further investigation.