Browsing by Author "Renshaw, Scott E."

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Ipsilateral immunization after a prior SARS-CoV-2 mRNA vaccination elicits superior B cell responses compared to contralateral immunization
    (Elsevier, 2024) Jiang, Wenxia; Maldeney, Alexander R.; Yuan, Xue; Richer, Martin J.; Renshaw, Scott E.; Luo, Wei; Microbiology and Immunology, School of Medicine
    mRNA vaccines have proven to be pivotal in the fight against COVID-19. A recommended booster, given 3 to 4 weeks post the initial vaccination, can substantially amplify protective antibody levels. Here, we show that, compared to contralateral boost, ipsilateral boost of the SARS-CoV-2 mRNA vaccine induces more germinal center B cells (GCBCs) specific to the receptor binding domain (RBD) and generates more bone marrow plasma cells. Ipsilateral boost can more rapidly generate high-affinity RBD-specific antibodies with improved cross-reactivity to the Omicron variant. Mechanistically, the ipsilateral boost promotes the positive selection and plasma cell differentiation of pre-existing GCBCs from the prior vaccination, associated with the expansion of T follicular helper cells. Furthermore, we show that ipsilateral immunization with an unrelated antigen after a prior mRNA vaccination enhances the germinal center and antibody responses to the new antigen compared to contralateral immunization. These findings propose feasible approaches to optimize vaccine effectiveness.
  • Thumbnail Image
    Item
    Opioid Overdose Prevention in Family Medicine Clerkships: A CERA Study
    (STFM, 2018) Gano, Laura; Hernandez, Ruben H.; Renshaw, Scott E.; Cronholm, Peter F.; Family Medicine, School of Medicine
    BACKGROUND AND OBJECTIVES: The national opioid crisis requires medical education to develop a proactive response centering on prevention and treatment. Primary care providers (PCPs)—many of whom are family medicine physicians—commonly treat patients on opiates, and write nearly 50% of opioid prescriptions. Despite linkages between PCP opioid prescribing patterns and the associated potential for overdose, little is known about how family medicine clerkship students are trained to prevent opioid overdose, including training on the use of naloxone. This study describes the presence of opioid overdose education at the national level and barriers to inclusion. It also discusses implementation strategies along with instructional methodology and learner evaluation. METHODS: Data were collected as part of a cross-sectional survey administered electronically by the Council of Academic Family Medicine Educational Research Alliance to 139 family medicine clerkship directors. RESULTS: A total of 99 clerkship directors (71.2% response rate) responded to the survey. A large majority (86.4%) agreed that it is important to offer opioid overdose prevention education in the clerkship, yet only 25.8% include this topic. Of these, only 50.0% address naloxone use. The most common barriers to including opioid overdose prevention education were prioritization of educational topics (82.1%) followed by lack of available faculty with sufficient experience/expertise (67.7%). CONCLUSIONS: Findings point to a disparity between perceived importance of opioid overdose prevention education and inclusion of this topic in family medicine clerkship-level medical education. Innovative use of online education and partnering with community resources may address barriers related to curricular prioritization while supporting interprofessional education principles.
  • Thumbnail Image
    Item
    Understanding Traumatic Brain Injury in the Primary Care Setting
    (Office of the Vice Chancellor for Research, 2016-04-08) Gano, Laura; Kean, Jacob; Renshaw, Scott E.; Hernandez, Ruben; Willis, DeAnna
    Background: TBI is being re-conceptualized as a chronic disease causative agent rather than as a single, acute event. This study examined how familiar family medicine physicians (PCPs) are with TBI and their level of confidence in treating TBI sequelae likely to be seen in primary care. We also examined PCP attitudes regarding care for post-acute mild TBI and moderate/severe TBI in primary care and how recently the respondent had cared for a mild TBI and/or moderate/severe TBI patient. Methods: The study featured a mixed methods study design. A survey was administered on paper and electronically. A semi-structured qualitative interview guide was developed based upon survey responses. Descriptive statistics were calculated. Results: Most respondents associated neurological symptoms/conditions as TBI sequelae: irritability, 100.0%, fatigue, 98.0%; insomnia, 88.2%, depression, 98.0%, headaches, 98.0%, anxiety, 80.4%. Two-thirds (66.7%) identified epilepsy as a condition associated with TBI. Just over one-half associated tinnitus (51.0%) or loss of libido (52.9%) with TBI while only one-third (33.3%) associated incontinence with TBI. Most physicians felt confident treating depression (84.0%), anxiety (82.4%), headache (80.4%) and insomnia (76.0%). Physicians felt less confident in treating fatigue (68.0%), irritability (68.0%), incontinence (51.2%) and loss of libido (50.0%). The least amount of confidence was claimed in treating epilepsy (37.5%) and tinnitus (36.4%). All respondents (100.0%) believed that a PCP can manage post-acute mild TBI (concussion) care while 52.0% agreed that a PCP can manage post-acute care for moderate/severe TBI. Only one respondent (2.0%) had never cared for a mild TBI patient. Most (70.6%) had cared for a moderate/severe TBI patient within the past two years while 5.9% had cared for one of these patients more than a year ago. Nearly twenty percent (19.7%) had never cared for a moderate/severe TBI patient and 3.9% were unsure if they had.