The ACPHS Research Commons collects in one space the digitised research and scholarship generated by the college’s faculty, students, and staff.
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Item Retrospective, propensity score--matched study examining the relationship between frailty and Clostridioides difficile infection in a national cohort of US veterans(American Journal of Infection Control, 2024-12)Background: Frailty is often more predictive of disease and mortality compared with chronological age. This study determined the impact of frailty on Clostridioides difficile infection (CDI) risk and outcomes in a national veteran population.Item Combination therapy with IV fosfomycin for adult patients with serious Gram-negative infections: a review of the literature.(The Journal of Antimicrobial Chemotherapy, 2024-10-01)Treatment of patients with serious infections due to resistant Gram-negative bacteria remains highly problematic and has prompted clinicians to use existing antimicrobial agents in innovative ways. One approach gaining increased therapeutic use is combination therapy with IV fosfomycin. This article reviews the preclinical pharmacokinetic/pharmacodynamic (PK/PD) infection model and clinical data surrounding the use of combination therapy with IV fosfomycin for the treatment of serious infections caused by resistant Gram-negative bacteria. Data from dynamic in vitro and animal infection model studies of highly resistant Enterobacterales and non-lactose fermenters are positive and suggest IV fosfomycin in combination with a β-lactam, polymyxin or aminoglycoside produces a synergistic effect that rivals or surpasses that of other aminoglycoside- or polymyxin-containing regimens. Clinical studies performed to date primarily have involved patients with pneumonia and/or bacteraemia due to Klebsiella pneumoniae, Pseudomonas aeruginosa or Acinetobacter baumannii. Overall, the observed success rates with fosfomycin combination regimens were consistent with those reported for other combination regimens commonly used to treat these patients. In studies in which direct treatment comparisons can be derived, the results suggest that patients who received fosfomycin combination therapy had similar or improved outcomes compared with other therapies and combinations, especially when it was used in combination with a β-lactam that (1) targets PBP-3 and (2) has exceptional stability in the presence of β-lactamases. Collectively, the data indicate that combination therapy with IV fosfomycin should be considered as a potential alternative to aminoglycoside or polymyxin combinations for patients with antibiotic-resistant Gram-negative infections when benefits outweigh risks.Item Structural and biophysical analysis of cytochrome P450 2C9*14 and *27 variants in complex with losartan.(Journal of Inorganic Biochemistry, 2024-09)The human cytochrome P450 (CYP) 1, 2 and 3 families of enzymes are responsible for the biotransformation of a majority of the currently available pharmaceutical drugs. The highly polymorphic CYP2C9 predominantly metabolizes many drugs including anticoagulant S-warfarin, anti-hypertensive losartan, anti-diabetic tolbutamide, analgesic ibuprofen, etc. There are >80 single nucleotide changes identified in CYP2C9, many of which significantly alter the clearance of important drugs. Here we report the structural and biophysical analysis of two polymorphic variants, CYP2C9*14 (Arg125His) and CYP2C9*27 (Arg150Leu) complexed with losartan. The X-ray crystal structures of the CYP2C9*14 and *27 illustrate the binding of two losartan molecules, one in the active site near heme and another on the periphery. Both losartan molecules are bound in an identical conformation to that observed in the previously solved CYP2C9 wild-type complex, however, the number of losartan differs from the wild-type structure, which showed binding of three molecules. Additionally, isothermal titration calorimetry experiments reveal a lower binding affinity of losartan with *14 and *27 variants when compared to the wild-type. Overall, the results provide new insights into the effects of these genetic polymorphisms and suggests a possible mechanism contributing to reduced metabolic activity in patients carrying these alleles.Item Assessment of Student Pharmacists' Co-Curricular Professionalization Using an Impact Scale.(Pharmacy : a journal of pharmacy education and practice, 2024-07-25)Co-curricular participation is a required component of the pharmacy program. Assessment of co-curricular activities has proven challenging due to lack of manpower to address the workload of reviewing multiple critical reflections. This project documented the professionalization impact of co-curricular involvement and secondarily explored the utility of our assessment tool, the Co-curricular Impact Scale (CIS), developed to streamline the assessment process. First- through third-professional-year students (P1, P2, P3) participated in five co-curricular domains: (i) professional development/education; (ii) patient care service; (iii) legislative advocacy; (iv) leadership/service to the pharmacy profession; and (v) healthcare-related community service. For the CIS, 16 questions were developed and mapped to 11 educational outcomes and included assessing the impact of immersing in an authentic learning experience, collaborating with healthcare professionals, and preparing for the pharmacist role. A group of 296 students rated the impact of participation as low, moderate, or significant for five events annually. Based on 717 entries, the two attributes deemed most impactful were: "Activity immersed me in an authentic learning experience" (95% ≥ Moderate Impact) and "Activity improved my self-confidence" (93% ≥ Moderate Impact). P1 students found slightly less impact in co-curricular participation (83.5%) than P2 (88.4%) and P3 (86.8%) counterparts. The CIS proved to be an efficient method to collate impact of co-curricular involvement upon student professionalization.Item Pharmacy Intern Involvement in COVID-19 Immunization Practices in New York State.(Journal of Pharmacy Practice, 2024-06)Background: Pharmacists and pharmacy interns were instrumental in vaccination efforts during the COVID-19 pandemic. Objectives: To identify pharmacy intern involvement in COVID-19 immunization practices in New York State (NYS) and explore interns' perceptions of experiences. Methods: A 34-item survey was developed and administered at 5 pharmacy programs in NYS. Data collected included: perceptions of immunization readiness, participation in immunizations, description of experiences, and perceptions on the role of pharmacists. Respondents also reported on their preparedness to participate in the immunization process and the types of questions received from patients. Data were analyzed using descriptive statistics and thematic analysis. Questions regarding student experiences before and after participating in immunization efforts were analyzed using a two-sample t test. Results: A total of 460 interns participated in the survey with 398 (87%) reporting participation in COVID-19 immunizations. Of those, 231 (58%) participated at work, 146 (36.7) during experiential rotations, and 98 (24.6%) during volunteer experiences. Respondents participated in various components of vaccine delivery including administration (n = 246, 61.8%). Respondents administered an estimated 57,100 COVID-19 vaccines from December 2020 to April 2021 resulting in significantly higher mean scores for comfort level (5-point Likert scale) administering vaccines after participation (mean score 4.08 ± 1.31) compared to before (mean score 3.61 ± 1.42) (p < .0001). Themes which emerged regarding student perceptions of their experience are described. Conclusion: Pharmacy intern involvement in NYS COVID-19 immunization practices contributed to public health vaccination efforts. Additionally, interns improved comfort levels with immunization administration and recognized pharmacists' emerging roles within the U.S. healthcare system.
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