"No one went into pharmacy … to sell a lot of Coca-Cola. It's just sort of a necessary evil" - Community pharmacists' perceptions of front-of-store sales and ethical tensions in the retail environment

Background

Community pharmacists are expected to uphold ethical duties to patients and society while maintaining independent businesses or fulfilling expectations of corporate owners. Canadian pharmacy colleges provide only indirect guidance on the retail setting of the profession. Little is known about whether pharmacists identify ethical issues in retail pharmacy or around the sales of non-drug products.

Objective

This study sought to examine pharmacists' perceptions of their roles in health promotion, the factors that influence the selection of front-of-store products, and ethical issues relating to their dual roles as health care providers and retailers.

Methods

In 2020, 25 Canadian pharmacists participated in semi-structured phone interviews. Interviews were audio-recorded, anonymized, transcribed verbatim, and thematically analyzed using qualitative methods.

Results

Almost all participants described their role primarily as a health care provider, though some described themselves as 50-50 health care providers and retailers. Most staff pharmacists reported little control over front-of-store product selection. Where participants reported some control, external factors such as business viability and profitability impacted their choices, though some reported selecting products based on the needs of their patient community or their personal beliefs. The dominant tensions described stemmed from participants' dual roles as health care providers and retailers, though specific issues and situations were varied, ranging corporate targets, to service provision, to the sales of unproven or unhealthy products. Participants suggested solutions to the issues they described, ranging from a complete overhaul of the licensing structure of community pharmacies, down to one-on-one conversations with patients.

Conclusion

Our findings suggest that the retail setting of community pharmacy produces unique ethical tensions: the imposition of retail sales standards and targets are commonplace, and business viability is a primary driving force in front-of-store product selection. Clear guidance from Canadian pharmacy colleges and legislators to address these tensions and issues may be necessary.

Breached Barriers: A Scoping Review of Blood-Central Nervous System Barrier Pathology in Amyotrophic Lateral Sclerosis

Introduction

Recent studies have implicated changes in the blood-central nervous system barriers (BCNSB) in amyotrophic lateral sclerosis (ALS). The objective of this scoping review is to synthesize the current evidence for BCNSB structure and functional abnormalities in ALS studies and propose how BCNSB pathology may impact therapeutic development.

Methods

A literature search was conducted using Ovid Medline, EMBASE, and Web of Science, from inception to November 2021 and limited to entries in English language. Simplified search strategy included the terms ALS/motor neuron disease and [BCNSB or blood-brain barrier (BBB) or blood-spinal cord barrier (BSCB)]. Henceforth, BCNSB is used as a term that is inclusive of the BBB and BSCB. Four independent reviewers conducted a title and abstract screening, hand-searched the reference lists of review papers, and performed a full text review of eligible studies. Included studies were original peer-reviewed full text publications, evaluating the structure and function of the BCNSB in preclinical models of ALS, clinical ALS, or postmortem human ALS tissue. There was no restriction on study design. The four reviewers independently extracted the data.

Results

The search retrieved 2,221 non-duplicated articles and 48 original studies were included in the synthesis. There was evidence that the integrity of the BCNSB is disrupted throughout the course of the disease in rodent models, beginning prior to symptom onset and detectable neurodegeneration. Increased permeability, pharmacoresistance with upregulated efflux transporters, and morphological changes in the supporting cells of the BCNSB, including pericytes, astrocytes, and endothelial cells were observed in animal models. BCNSB abnormalities were also demonstrated in postmortem studies of ALS patients. Therapeutic interventions targeting BCNSB dysfunction were associated with improved motor neuron survival in animal models of ALS.

Conclusion

BCNSB structural and functional abnormalities are likely implicated in ALS pathophysiology and may occur upstream to neurodegeneration. Promising therapeutic strategies targeting BCNSB dysfunction have been tested in animals and can be translated into ALS clinical trials.

Neurite orientation dispersion and density imaging in a rodent model of acute mild traumatic brain injury

BACKGROUND AND PURPOSE

Identification of changesin brain microstructure following mild traumatic brain injury (mTBI) could be instrumental in understanding the underlying pathophysiology. The purpose of this study was to apply neurite orientation dispersion and density imaging (NODDI) to a rodent model of mTBI to determine whether microstructural changes could be detected immediately following injury.

METHODS

Fifteen adult male Wistar rats were scanned on a Bruker 9.4 Tesla small animal MRI using a multi-shell acquisition (30 b = 1000 s/mm² and 60 b = 2000 s/mm² ). Nine animals experienced a single closed head controlled cortical impact followed by NODDI from 1 to 4 h post injury. Region of interest analysis focused on the corpus callosum and hippocampus. A mixed analysis of variance (ANOVA) was used to determine statistically significant interactions in neurite density index (NDI), orientation dispersion index (ODI), fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity. Follow up repeated-measures ANOVAs were used to determine individual changes over time.

RESULTS

NDI showed a significant increase in the hippocampus and corpus callosum following injury, while ODI showed increases in the corpus callosum. No significant changes were observed in the sham control animals. No changes were found in FA, MD, AD, or RD. Histological analysis revealed increased glial fibrillary acidic protein staining relative to controls in both the hippocampus and corpus callosum, with evidence of activated astrocytes in these regions.

CONCLUSIONS

Changes in NODDI metrics were detected as early as 1 h following mTBI. No changes were detected with conventional diffusion tensor imaging (DTI) metrics, suggesting that NODDI provides greater sensitivity to microstructural changes than conventional DTI.

Is once always enough? Revisiting the single use item

The reuse of single use medical items is a complex ethical issue that many healthcare providers are faced with, for while recommendations and literature do not advocate the reuse of these items, the reality is that many single use items are frequently reused. Further, many healthcare workers are ethically divided over whether or not to share this information with their patients, or who should reveal this information. While single use items are convenient to use, the reality of the cost to the healthcare system and the environment is being realised. Three distinct issues in regard to reuse of single use items are explored: patient consent, fiscal responsibility and environmental stewardship. Exploring these issues through the ethical frameworks of utilitarianism, contractarianism, and land ethic or holism can offer guidance in attending to the question "is once always enough?" Applying an integrated ethical framework can further assist healthcare providers and stakeholders to make informed, ethical choices in regard to choosing single use medical devices and items. Short, fictionalised narratives based on authentic events are used to illustrate the ethical context of the reuse issue.