Strong immunogenicity & protection in mice with PlaCCine: A COVID-19 DNA vaccine formulated with a functional polymer.

DNA- based vaccines have demonstrated the potential as a safe and effective modality. PlaCCine, a DNA-based vaccine approach described subsequently relies on a synthetic DNA delivery system and is independent of virus or device. The synthetic functionalized polymer combined with DNA demonstrated stability over 12 months at 4C and for one month at 25C. Transfection efficiency compared to naked DNA increased by 5-15-fold in murine skeletal muscle. Studies of DNA vaccines expressing spike proteins from variants D614G (pVAC15), Delta (pVAC16), or a D614G + Delta combination (pVAC17) were conducted. Mice immunized intramuscular injection (IM) with pVAC15, pVAC16 or pVAC17 formulated with functionalized polymer and adjuvant resulted in induction of spike-specific humoral and cellular responses. Antibody responses were observed after one immunization. And endpoint IgG titers increased to greater than 1x 105 two weeks after the second injection. Neutralizing antibodies as determined by a pseudovirus competition assay were observed following vaccination with pVAC15, pVAC16 or pVAC17. Spike specific T cell immune responses were also observed following vaccination and flow cytometry analysis demonstrated the cellular immune responses included both CD4 and CD8 spike specific T cells. The immune responses in vaccinated mice were maintained for up to 14 months after vaccination. In an immunization and challenge study of K18 hACE2 transgenic mice pVAC15, pVAC16 and pVAC17 induced immune responses lead to decreased lung viral loads by greater than 90 % along with improved clinical score. These findings suggest that PlaCCine DNA vaccines are effective and stable and further development against emerging SARS-CoV-2 variants is warranted.

Examining the context, logistics, and outcomes of food prescription programs: A scoping review.

BACKGROUND: Obesity and associated metabolic conditions are endemic. Finding new strategies to mitigate the impact on wellbeing and healthcare systems is critical. Food prescription programs (FPPs) have been promoted as one route to address this problem in a way that simultaneously addresses the socio-cultural context of obesity. Yet, little is known about the standard practices and logistics of using food prescription programs as an effective intervention. OBJECTIVES: To 1) identify the context in which food prescription programs are used; 2) identify implementation logistics of food prescription program; and 3) understand the scope of food prescription program outcomes. METHODS: A scoping review was conducted from October 2019 to May 2020 using Google Scholar, EBSCOhost, and AcademicOne Search to identify research articles focused on the implementation of prescription food programs in the US. Updates to articles were made in May of 2021 and May of 2022 to ensure the most up-to-date sample for analysis. There was no publication date restriction for article inclusion. RESULTS: A total of 213 articles were identified for abstract review via the search strategy, and 30 articles were included for analysis following article exclusion. Overall, there was little consistency among included articles regarding the target population, participant recruitment, delivery, and evaluation of the food prescription programs implemented. Most food prescription programs studied were associated with farmers markets, lasted less than 6 months, and utilized produce consumption and biometric data as primary outcomes measures. CONCLUSION: Significant gaps in the literature concerning the long-term effectiveness, impact on health behaviors, screening of eligible participants, and logistics for implementation were identified. Future research should focus on addressing these shortcomings in the current literature to improve the implementation, sustainability, and scaling of food prescription programs.

Use of the transtheoretical model in medication adherence: A systematic review.

BACKGROUND: Medication nonadherence is an important public health issue that has individual and system-level implications. Nonadherence can lead to negative health outcomes and illness, which in turn produce increased healthcare costs for both the individual and system. The transtheoretical model of change (TTM) can be a useful basis for interventions, as it can identify patients' current stages of change and guide them from nonadherence to adherence. OBJECTIVE: The objective of this systematic review was to determine the utilization of the TTM to predict or improve medication adherence in patients with chronic conditions. METHODS: A systematic review of current literature was conducted to obtain an overview of the use of TTM-informed interventions for medication adherence in chronic conditions. PubMed, Embase, PsycInfo and CINAHL databases were searched in July 2020. The methodological quality of the studies was evaluated using the Downs and Black checklist. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed for data extraction, analysis, and reporting. RESULTS: Ten studies were included in the final data synthesis of this review. Eight of the reviewed studies supported the utility of TTM to predict or improve medication adherence in patients with chronic conditions, while two studies did not find any significant improvement in medication adherence after using a TTM-based intervention. The Downs and Black checklist revealed the overall methodological quality of the included studies to be fair [mean (SD) = 16.3 (4.5) of a possible maximum score of 28]. CONCLUSION: This systematic review provides an overview of the utility of TTM in predicting and improving medication adherence in patients with chronic conditions. Although TTM-based interventions in patients with low or moderate medication adherence were effective, there were few studies identified, suggesting the need for further research.

Patient Centered Studies Focused on Type 2 Diabetes Management, Education, and Family Support: A Scoping Review.

BACKGROUND: Although a large amount of research has been conducted in diabetes management, many of the articles do not focus on patient-centered questions and concerns. To address this shortcoming, patients and various other stakeholders from three northern Mississippi communities co-created research questions focused on Type 2 diabetes management. OBJECTIVE: To identify the diabetes management literature pertaining to each of the six patient-developed research questions from March 2010 to July 2020. METHODS: A scoping review was conducted via PubMed to identify research articles from March 2010 to July 2020 focused on patient-centered Type 2 diabetes studies relevant to the six research questions. RESULTS: A total of 1,414 studies were identified via the search strategy and 34 were included for qualitative analysis following article exclusion. For one of the research questions, there were no articles included. For the remaining research questions, the number of articles identified ranged from two to eleven. After analysis of the included articles, it was found that these questions either lacked extensive data or had not been implemented in the practice of diabetes management. CONCLUSION: Additional research is warranted for three of the five questions, as current evidence is either lacking or contradictory. In the remaining two questions, it seems that adequate current research exists to warrant transitioning to implementation focused studies wherein data may be generated to improve sustainability and scaling of current programming.

Predictors of pharmacists' likelihood to query prescription drug monitoring program databases.

BACKGROUND: Low rates of enrollment and querying of the prescription drug monitoring programs (PDMPs) may be detrimental to the effectiveness of controlling prescription drug misuse. A number of individual-level, organizational, and regulatory factors may affect a community pharmacist's likelihood to query their statewide PDMP. OBJECTIVE: To identify predictors of pharmacists' likelihood to query the PDMP. METHODS: A self-administered survey was used to collect data from community pharmacists from a national panel. Measures were identified from previous literature assessing provider likelihood to query PDMPs. A principal components analysis of items pertaining to pharmacists' likelihood to query PDMPs was conducted as a data reduction technique to identify underlying dimensions. Multivariable linear regression was conducted to examine relationships between 5 predictor variables (state regulations, practice setting, workload, perceived barriers, and attitude) and the identified components. RESULTS: A total of 148 completed survey responses were included for final analysis. The pharmacists'-likelihood-to-query scale comprised 2 components accounting for 71% of the total variance. The 2 components were labeled as higher-risk situations and lower-risk situations. Multivariable linear regression indicated that pharmacists' likelihood to query the PDMP for the higher-risk situations was not statistically significant for any predictor variables. For the lower-risk situations, pharmacists who had a more positive attitude toward the effectiveness of the PDMP were more likely to query it in these situations (unstandardized coefficient = 0.167; P = 0.018). CONCLUSION: The factors affecting pharmacists' likelihood to query the PDMP may differ depending on the situations faced by the pharmacist. On the basis of the study results, it seems that pharmacists are currently aware of the importance of checking the PDMP and regularly query it. Overall, the respondent pharmacists had a positive attitude toward the effectiveness of the PDMP, which seems to have a role in their likelihood to query it in lower-risk situations.

Patient Centered Studies Focusing on Diabetes Self-Management: A Scoping Review.

BACKGROUND: Type 2 diabetes continues to be a significant burden to patients and health systems globally. Addressing this condition from an alternative perspective, patients and various other stakeholders from three northern Mississippi communities co-created patient-centered research questions focused on type 2 diabetes management. OBJECTIVE: The objective of this scoping review was to explore current literature focusing on nine patient- centered research questions to establish current knowledge and identify future research needs in the area of type 2 diabetes. METHODS: A scoping review was conducted to obtain an overview of research related to the study purpose. The PubMed database was searched from March 2013 to March 2018 to identify patient-centered studies focused on type 2 diabetes and relevant to one of the nine research questions. RESULTS: A total of 33 studies were identified and included. For five of the research questions, there was either no previous research literature or only "related" studies could be identified. These largely unexplored topics included how the understanding of guidelines by healthcare providers, specialty, and communication of medication side-effects impact patients' understanding and outcomes, the impact of improving patients' preparedness to communicate with providers, and whether younger patients require weight management programs that account for this populations' needs. CONCLUSION: This lack of previous literature presents a unique opportunity to partner with patients to conduct this study and help improve the management of type 2 diabetes.

Building a Patient-Centered Weight Management Program: A Mixed Methods Project to Obtain Patients' Information Needs and Ideas for Program Structure.

Achieving and maintaining weight loss for large segments of the population remains elusive, despite evidence demonstrating the value of many weight management programs. This study aimed to gather patients' perceptions on weight management education needs, and ideas for the structure of a weight management program to be delivered in community pharmacies. This was an exploratory mixed methods study combining qualitative focus group interviews with a cross-sectional survey. Three focus group interviews were conducted, along with a brief survey based on focus groups findings and sent to all eligible participants. The survey allowed for individual responses on the program components and narrowing down of focus group findings. Nearly half of the respondents (45.9%) wanted further education on limiting carbohydrate and sugar intake. Participants were most interested in identifying different exercises appropriate for those with physical limitations (48.6%). Most participants preferred 1 h meetings (70.3%) that contain a mix of one-on-one and group meeting formats (67.6%). The results of the study suggest a three-month weight management program, with a combination of group and individual in-person meetings occurring twice per month, would be of most interest to patients.

Preceptor Perceptions of Virtual Quality Assurance Experiential Site Visits.

Objective. To determine preceptor perceptions of the value of experiential quality assurance site visits between virtual and onsite visits, and to gauge preceptor opinions of the optimal method of site visits based on the type of visit received. Methods. Site visits (12 virtual and 17 onsite) were conducted with 29 APPE sites located at least 200 miles from campus. Participating preceptors were invited to complete an online post-visit survey adapted from a previously validated and published survey tool measuring preceptor perceptions of the value of traditional onsite visits. Results. Likert-type score averages for survey questions ranged from 4.2 to 4.6 in the virtual group and from 4.3 to 4.7 in the onsite group. No statistically significant difference was found between the two groups. Preceptors were more inclined to prefer the type of visit they received. Preceptors receiving onsite visits were also more likely to indicate no visit type preference. Conclusion. Preceptors perceived value from both onsite and virtual site visits. Preceptors who experienced virtual site visits highly preferred that methodology. This study suggests that virtual site visits may be a viable alternative for providing experiential quality assurance site visits from a preceptor's perspective.

A Tryptoline Ring-Distortion Strategy Leads to Complex and Diverse Biologically Active Molecules from the Indole Alkaloid Yohimbine.

High-throughput screening (HTS) is the primary driver to current drug-discovery efforts. New therapeutic agents that enter the market are a direct reflection of the structurally simple compounds that make up screening libraries. Unlike medically relevant natural products (e.g., morphine), small molecules currently being screened have a low fraction of sp3 character and few, if any, stereogenic centers. Although simple compounds have been useful in drugging certain biological targets (e.g., protein kinases), more sophisticated targets (e.g., transcription factors) have largely evaded the discovery of new clinical agents from screening collections. Herein, a tryptoline ring-distortion strategy is described that enables the rapid synthesis of 70 complex and diverse compounds from yohimbine (1); an indole alkaloid. The compounds that were synthesized had architecturally complex and unique scaffolds, unlike 1 and other scaffolds. These compounds were subjected to phenotypic screens and reporter gene assays, leading to the identification of new compounds that possessed various biological activities, including antiproliferative activities against cancer cells with functional hypoxia-inducible factors, nitric oxide inhibition, and inhibition and activation of the antioxidant response element. This tryptoline ring-distortion strategy can begin to address diversity problems in screening libraries, while occupying biologically relevant chemical space in areas critical to human health.