Scholarly Concentrations Program

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A pilot study of ADRA2A genotype association with doses of dexmedetomidine for sedation in pediatric patients
(Wiley, 2022) Gallaway, Katherine A.; Skaar, Skaar; Biju, Ashwin; Slaven, James; Tillman, Emma M.
Study objective: Dexmedetomidine is titrated to achieve sedation in the pediatric and cardiovascular intensive care units (PICU and CVICU). In adults, dexmedetomidine response has been associated with an ADRA2A polymorphism (rs1800544); CC genotype is associated with an increased sedative response compared with GC and GG. To date, this has not been studied in children. Design: We conducted a pilot study to determine whether ADRA2A genotype is associated with dexmedetomidine dose in children. Measurements and main results: Forty intubated PICU or CVICU patients who received dexmedetomidine as a continuous infusion for at least 2 days were genotyped for ADRA2A with a custom-designed TaqMan® Assay. Ten (25%) subjects were wildtype (GG), 15 (37.5%) were heterozygous (GC), and 15 (37.5%) were homozygous (CC) variant. The maximum dexmedetomidine doses (mCg/kg/h) were not different between genotype groups CC (1, 0.3-1.2), GC (1, 0.3-1.3), and GG (0.8, 0.3-1.2), (p = 0.37); neither were mean dexmedetomidine doses for these respective genotype groups 0.68 (0.24-1.07), 0.72 (0.22-0.98), 0.58 (0.3-0.94), (p = 0.67). Conclusions: These findings did not confirm the results from adult studies where ADRA2A polymorphisms correlate with dexmedetomidine response, therefore highlighting the need for pediatric studies to validate PGx findings in adults prior to implementation in pediatrics.
Addressing disparities in delivery of cancer care for patients with melanoma brain metastases—Not just a simple case of rurality
(Society for NueroOncology, 2023-09-28) Riggs, Joseph; Ahn, Hyejeong; Longmoore, Hailee; Jardim, Pedro; Kim, Min J.; Kasper, Ekkehard M.; Han, Jiali; Lam, Fred C.
American Singles’ Attitudes Toward Future Romantic/ Sexual Partners’ COVID-19 Vaccination Status: Evidence for both Vigilance and Indifference in a National Sample
(Springer, 2023-05-18) Campbell, Jessica T.; Bennett-Brown, Magaret; Marcotte, Alexandra S.; Kaufman, Ellen M.; Moscovici, Zoe; Adams, Olivia R.; Lovins, Sydney; Garcia, Justin R.; Gesselman, Amanda N.
Around 142 million American adults are currently single; at least half of these singles want to pursue a romantic partner. Romantic dating can involve exposure to numerous people. Thus, dating can significantly impact pathogen exposure risk. In a demographically-representative cross-sectional survey conducted in 2021 (N = 5,000), we examined U.S. American singles' COVID-19 vaccination status, assessed their preferences around a potential partner's COVID-19 vaccination status, and identified demographic subgroups of singles particularly opposed to or indifferent to a partner being vaccinated against COVID-19. Our results showed 65% of participants were fully vaccinated, 10% were partially vaccinated, and 26% were unvaccinated against COVID-19. With regards to partner preferences, half wanted a vaccinated partner; 18.9% wanted a vaccinated partner but would make exceptions; 6.1% wanted an unvaccinated partner; and 25% reported that they did not care about their dating partner's vaccination status. Partner preferences were largely aligned with participants' own vaccination status, such that vaccinated participants preferred vaccinated partners. However, those preferring unvaccinated partners-or those willing to make exceptions for a partner-were most likely to identify as men, younger in age, a political affiliation outside of the two-party political system, a gender or sexual minority, or as a racial minority (i.e., Black/African-American or South Asian). Additionally, participants who were employed (vs. unemployed) were more likely to make exceptions for or prefer an unvaccinated partner. These results suggest that singles prefer homophily in COVID-19 vaccine status, and that minoritized subgroups of singles are more likely to maintain a social network including unvaccinated close others.
Analysis of COVID-19 Case Demographics and Disease Outcomes in Gary, Indiana
(MDPI, 2023-09-07) Sabir, Maryam; Al-Tarshan, Yazan; Snapp, Cameron; Brown, Martin; Walker, Roland; Han, Amy; Kostrominova, Tatiana
Background: The COVID-19 pandemic further exposed the prevalence of existing health disparities in Black communities in the U.S. The current study evaluates COVID-19 data collected in Gary, Indiana, from June 2020 to June 2021. We hypothesized that the number of COVID-19 cases, hospitalizations, and deaths were influenced by race and income. Methods: In collaboration with the Gary Health Department (GHD), we analyzed demographic data on COVID-19-positive cases. Results: Compared to Gary's non-Black population, age- and population-adjusted rates of hospitalizations and deaths in the Black population were 3-fold (p < 0.0001) and 2-fold (p < 0.05) higher, respectively. This is despite a higher infection rate (p < 0.0001) in the non-Black population. The median household income of a zip code was negatively correlated with COVID-19 hospitalizations (R2 = 0.6345, p = 0.03), but did not correlate with infections and deaths. Conclusions: The current study demonstrates clear health disparities of income and race in the context of COVID-19-related infections and outcomes in the city of Gary. Indiana University School of Medicine Northwest and GHD officials can collaborate to utilize these data for the reallocation of resources and health education efforts in Gary's highly populated, low-income, and predominantly Black neighborhoods. It should also prompt further investigation into national health resource allocation.
Assessment of patient follow-up from student-run free eye clinic to county ophthalmology clinic
(Springer Nature, 2022) Scheive, Melanie; Rowe, Lucas W.; Tso, Hanna L.; Wurster, Patrick; Kalafatis, Nicholas E.; Camp, David A.; Yung, Chi Wah Rudy; Ophthalmology, School of Medicine
The Ophthalmology Student Interest Group at Indiana University School of Medicine provides a free student-run eye screening clinic for an underserved community in Indianapolis. Patients with abnormal findings are referred to the ophthalmology service of the local county hospital for further evaluation. This retrospective chart review studied 180 patients referred from our free eye clinic to follow up at the ophthalmology service of a local county hospital from October 2013 to February 2020. This study investigated factors impacting follow-up of patients by analyzing demographics, medical history, insurance coverage, and final diagnoses at follow-up. Thirty-five (19.4%) of 180 patients successfully followed up at the local county hospital with an average time to follow-up of 14.4 (± 15.9) months. Mean patient age was 51 (± 13.6) with nearly equal numbers of males and females. The most common diagnoses at follow-up included refractive error (51.4%), cataract (45.7%), and glaucoma (28.6%). Patients with diabetes diagnoses or Healthy Indiana Plan insurance coverage had increased probability of follow-up. This study reveals gaps in timely follow-up to the local county hospital, demonstrating the current limitations of our free clinic in connecting patients to more definitive care and the need for an improved referral process.
Association of Socio-Demographic Factors, Social Determinants of Health and Weekly Physical Activity in an Urban Hospital in Northwest Indiana
(2023-07) Gad, Wael; Chandler, Brianna; Jones, Brendan; Mangum, Joshua
Background: Engaging in regular physical activity has been proven to have beneficial health effects such as preventing chronic diseases and improving mental health. Recent studies have demonstrated correlations between socio-demographic factors and physical activity levels. This study determined the associations between socio-demographic factors, social determinants of health and the amount of weekly physical activity in patients occupying an urban underserved area. Methods: This study retrospectively analyzed a dataset generated by St. Mary Medical Center from EPIC™ with demographic characteristics and physical activity levels partitioned by time per week for adult inpatient visits from January 2021 to March 2023. Patients were stratified into physical activity levels based upon published guidelines: inactive (no physical activity), insufficiently active (<150 minutes per week) or sufficiently active (≥150 minutes per week). Data analysis was conducted in SPSS 28.0 using tests of association including Kruskal Wallis H and multivariate ordinal regression model. This study was exempted by Indiana University Human Research Protection Program (IRB # 14040). Results: The sample of individuals from the dataset who answered physical activity questions was comprised of 1498 patients. There was a statistically significant difference in physical activity level by age group (p<0.001), sex (p<0.05), insurance category (p<0.001), and social connections risk score (p<0.001); with race (p=0.057) and language (p=0.054) approaching significance. Multivariate analysis showed that age was the only significant factor when accounting for all variables, with higher age groups reporting lower proportions of physically active individuals. Conclusion: Determining how socio-demographic factors influence physical activity levels will direct efforts to form and implement new interventions in the Northwest Indiana urban area and support community health initiatives. This data makes it possible to inform practitioners of the demographics that are at risk of being insufficiently active and having them direct those patients to programs in place to help bridge the lapse.
Evaluation of family planning and abortion education in preclinical curriculum at a large midwestern medical school
(Elsevier, 2022) Brown, Lucy; Swiezy, Sarah; McKinzie, Alexandra; Komanapalli, Sarah; Bernard, Caitlin
OBJECTIVE: Evaluate a Midwestern medical school's current pregnancy termination and family planning undergraduate medical curriculum (UMC) in accordance with Association of Professors of Gynecology and Obstetrics (APGO) guidelines. Assess 1) student interest 2) preparedness to counsel patients, and 3) preferred modality of instruction. STUDY DESIGN: A survey assessed students about UMC. Course syllabus learning objectives and APGO educational guidelines were compared. RESULTS: There were 309 responses total; six did not complete all survey questions and were excluded. Participants (n = 303) were primarily female (62%) and White (74%). Across all class levels, many (61%) students expected to learn about family planning and contraception in UMC. While most (84-88%) participants who completed the preclinical course with or without the clerkship felt prepared to counsel about common, non-controversial pharmacotherapies, only 20% of students felt prepared to counsel on abortion options, and 75% of students who had completed both the preclinical and OBGYN clerkship felt unprepared for abortion counseling Overall, 86% of all students surveyed believed that the medical school should enhance its reproductive health coverage in UMC. Traditional lectures, panels, and direct clinical exposure were the most popular instructional modalities. CONCLUSION: We identified potential gaps in UMC where students expressed high level of interest with low level of preparedness regarding abortion options counseling, even among senior students. Considering the high percentage of students expecting to learn about pregnancy termination and family planning in their UMC, this expectation is not being met. Students were open to a variety of modalities of instruction, indicating that several possible options exist for curricular integration. IMPLICATIONS: Despite evidence of need for training in family planning and abortion, few medical institutions have a standardized curriculum. Little available literature exists on curricula covering pregnancy options and contraception counseling, signifying a gap of knowledge and an opportunity to study how to integrate these important topics into UMC.
"I Bring Her up with Love': Perspectives of Caregivers of Children with Neurodevelopmental Delays in Western Kenya
(2023-01) Heng, Yi Yan; Nafiseh, Amira; Oyungu, Eren; Ombitsa, Ananda Roselyne; Cherop, Carolyn; McHenry, Megan S.
Objective: This study aims to understand the challenges and perspectives of caregivers with neurodevelopmental delays (NDD) in rural Kenya. Methods: Semi-structured interviews and the Affiliate Stigma Scale were administered to the primary caregivers of children with NDDs recruited from the communities near Eldoret, Kenya. Constant comparison and triangulation methods were used to inductively develop relevant themes and concepts. Results: Sixteen caregivers participated. Challenges, which included hardships related to safety and supervision, challenging emotions and financial difficulties, were compounded by a lack of social support and community stigma towards these children. However, caregivers still felt deep love for their children, desired acceptance from the community and found sources of strength from faith and religious institutions. Conclusion: The study uncovered crucial insights into the perspectives of caregivers within this population and revealed a paucity of disability awareness and understanding within the community, possibly informing future programmes and intervention policies.
In situ efficacy of an experimental toothpaste on enamel rehardening and prevention of demineralisation: a randomised, controlled trial
(BMC, 2020) Creeth, Jonathan E.; Burnett, Gary R.; Souverain, Audrey; Gomez-Pereira, Paola; Zero, Domenick T.; Lippert, Frank; Hara, Anderson T.; Cariology, Operative Dentistry and Dental Public Health, School of Dentistry
Background A novel sodium fluoride toothpaste containing lactate ion and polyvinylmethylether-maleic anhydride has been developed to promote enamel remineralisation and resistance to demineralisation. In this in situ study, we compared this toothpaste (‘Test’) with a stannous fluoride-zinc citrate (SnF2-Zn) toothpaste (‘Reference’) (both 1100–1150 ppm fluoride) and a fluoride-free toothpaste (‘Placebo’) using an enamel dental erosion-rehardening model. Methods In each phase of this randomised, investigator-blind, crossover study, participants wore palatal appliances holding bovine enamel specimens with erosive lesions. They brushed their natural teeth with either the Test, Reference or Placebo toothpastes, then swished the resultant slurry. Specimens were removed at 2 h and 4 h post-brushing and exposed to an in vitro acid challenge. Surface microhardness was measured at each stage; enamel fluoride uptake was measured after in situ rehardening. Surface microhardness recovery, relative erosion resistance, enamel fluoride uptake and acid resistance ratio were calculated at both timepoints. Results Sixty two randomised participants completed the study. Test toothpaste treatment yielded significantly greater surface microhardness recovery, relative erosion resistance and enamel fluoride uptake values than either Reference or Placebo toothpastes after 2 and 4 h. The acid resistance ratio value for Test toothpaste was significantly greater than either of the other treatments after 2 h; after 4 h, it was significantly greater versus Placebo only. No treatment-related adverse events were reported. Conclusions In this in situ model, the novel-formulation sodium fluoride toothpaste enhanced enamel rehardening and overall protection against demineralisation compared with a fluoride-free toothpaste and a marketed SnF2-Zn toothpaste.
Indiana University School of Medicine Scholarly Concentrations Program Annual Report 2021
(Indiana University School of Medicine, 2021) Indiana University School of Medicine; Wallach, Paul M.
The Indiana University School of Medicine is confident that the curriculum prepares all future healers to transform health across the state and beyond. Many students come into medical school with varied interests related to medicine. Maybe they worked in an underserved rural clinic or still reflect on bioethics discussions from one of their favorite undergraduate courses. The Scholarly Concentrations Program offers medical students the opportunity to pursue their passions through coursework and scholarship in an academic setting that runs throughout medical school yet doesnot extend the time it takes to complete a medical degree.

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