Alleviation of Diabetic Retinopathy by Glucose-Triggered Delivery of Vitamin D via Dextran-Gated Functionalized Mesoporous Silica Nanoparticles.

Diabetic retinopathy (DR) is the most common retinal disorder, developed in 35% of patients with diabetes mellitus. Lower serum levels of 25-hydroxyvitamin D are associated with the increased risk of developing DR. High doses of the active form of vitamin D (VD), on the contrary, for a long period of time may lead to hypercalcemia and an imbalance in the regulation of bone metabolism. Herein, we studied the efficacy of dextran-gated carboxyphenylboronic acid (CPBA)-functionalized mesoporous silica nanoparticles (MSNs) for glucose-sensitive delivery of 1,25-dihydroxyvitamin D3 to modulate cellular oxidative stress and inflammation for managing DR. The physical adsorption technique was employed to load VD onto nanoparticles (263.63 µg/mg (w/w)). In the presence of glucose, the dextran molecules detach from pores, allowing VD to release since glucose has 1,2-cis diol groups which have very high affinity to CPBA. Approximately 75% of VD was released upon exposure to 25 mM glucose at a time point of 10 h, demonstrating glucose-responsive delivery. Furthermore, MSN-CPBA was able to deliver VD in a glucose-dependent manner and improve the bioavailability of VD. In high-glucose-supplemented human retinal cells, MSN-CPBA increased the bioavailability of VD and reduced cellular oxidative stress and inflammation. The results suggested that the VD-loaded nanocarrier exerted remarkable therapeutic capacity in reducing the risk of developing DR. By using MSN-CPBA as a delivery platform with dextran gating, the research proposes an effective treatment approach for improving the bioavailability and effectiveness of a hydrophobic molecule in the treatment of DR.

The role of pharmacist in community palliative care-a scoping review.

OBJECTIVES: Dynamic and adaptive services that provide timely access to care are pivotal to ensuring patients with palliative needs experience high-quality care. Patients who have palliative care needs may require symptomatic relief with medicines and, therefore, may engage with community pharmacists frequently. However, there is limited evidence for pharmacists' involvement in community palliative care models. Therefore, a scoping review was conducted to identify pharmacists' role in community palliative care. METHODS: A systematic search strategy was implemented across PubMed, PsychINFO, CINAHL, and Embase databases. Articles were screened by abstract and full text against inclusion and exclusion criteria. KEY FINDINGS: Five articles (two from Australia, two from England, and one from Scotland) met the inclusion criteria and described interventions involving pharmacists in community palliative care. This review has identified that the inclusion of trained pharmacists in community palliative care teams can improve the quality of care provided for patients with palliative needs. Pharmacists are able to undertake medication reviews and provide education to patients and other healthcare professionals on the quality use of palliative care medicines. Additionally, the underutilization of community pharmacists in palliative care, the need for further training of pharmacists, and improved community pharmacy access to patient information to deliver community palliative care were identified. CONCLUSION: Pharmacists can play a vital role in community palliative care to enhance the quality of life of patients. There is a need for greater pharmacist education/training, improved interprofessional communication, improved access to patient information and sustainable funding to strengthen community-based palliative care.

Healthcare Professionals' Knowledge, Attitudes, and Practices in Providing Care to Southeast Asian Immigrants with Cardiometabolic Syndrome: A Scoping Review.

OBJECTIVE: There is a growing emphasis on healthcare professionals' (HCPs) role in managing cardiometabolic risk factors to reduce health disparity for immigrants in developed countries. This scoping review aimed to analyse evidence about HCPs' knowledge, attitudes, and practices (KAP) of managing cardiometabolic risk factors among Southeast Asian (SEA) immigrants in developed countries. DESIGN: Primary studies from inception to July 17, 2023, from four databases: PubMed/Medline, Embase, PsycINFO, and CINAHL were included. This review followed the Joanna Briggs Institute (JBI) scoping review methodology and reported in line with PRISMA-ScR. RESULTS: Of 619 identified studies, seven met the inclusion criteria. All studies discussed HCPs' knowledge, six explored attitudes, and three described practices specific to SEA immigrants. The extracted data were analysed using descriptive qualitative content analysis and classified into barriers and facilitators. Barriers included cultural discordance and acculturation challenges (patient level); gaps in cultural understanding, communication and clinical skills (healthcare team level); limited immigrant-specific resources (organisation level); and funding constraints (environment level). Facilitators included community and provider support (patient level), awareness and desires to provide immigrant-specific care (healthcare team level), availability of culturally appropriate services (organisation level), and multicultural agendas and policies (environment level). CONCLUSION: The barriers and facilitators faced by HCPs caring for SEA immigrants with cardiometabolic syndromes share similarities with other immigrant groups. Future research focused on co-production involving immigrant patients, their communities, and HCPs in healthcare service design is required to support HCPs in providing culturally appropriate care and promoting health equity regardless of ethnic, cultural, or linguistic backgrounds.

Educational Interventions in Immigrants for Asthma and COPD: A Systematic Review.

Objective: Asthma and COPD are prevalent respiratory conditions among immigrants, yet many individuals in this population do not effectively utilize available therapies, resulting in exacerbations and limitations in their daily lives. This systematic review seeks to describe asthma/COPD educational interventions specifically tailored for immigrant patients and assess their variability and outcomes, with the ultimate goal of improving self-management and achieving better asthma or COPD control in this population. Design: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. A comprehensive literature search was conducted using four electronic databases (CINAHL, PubMed, Embase and PsycInfo). Articles were included if they focused on asthma or COPD interventions conducted in immigrant populations. The Mixed Methods Appraisal Tool was used to assess the quality of included articles. Results: Out of the initial 1173 articles identified, 812 were assessed for eligibility. Six articles met the inclusion criteria for educational interventions targeting immigrants with asthma or COPD. These studies explored the effectiveness of interventions on various immigrant populations using different methodologies including group discussion of photographs and classroom-based interventions. The interventions varied in terms of settings, educational materials, and delivery methods. Positive outcomes were observed in areas such as knowledge, understanding of instructions, and inhaler technique. However, the included studies had limitations in assessing the impact on asthma and COPD self-management and sustainability. Conclusion: More research is needed on asthma and COPD management in immigrants. The interventions included in this review had positive effects on outcomes like inhaler technique and asthma knowledge. However, due to variability in outcome measures, it is difficult to directly compare the interventions. Future studies should include diverse immigrant populations, consider the specific migration status of the immigrants, long-term sustainability of the intervention and use culturally tailored approaches to improve respiratory health in this population.