Vitamin D Toxicity from an Unusual and Unexpected Source: A Report of 2 Cases.

INTRODUCTION: Hypervitaminosis D is a relatively uncommon etiology of hypercalcemia. Toxicity is usually caused by very high doses, mostly secondary to erroneous prescription or administration of vitamin D, and less commonly, contaminated foods or manufacturing errors of vitamin D-containing supplements. CASE PRESENTATION: A 16-year-old male, previously healthy, presented with 2-week history of nonspecific symptoms (fatigue, gastrointestinal complaints). Investigations showed acute kidney injury and hypercalcemia (total calcium 3.81 mmol/L). Further diagnostic workup revealed markedly elevated 25-hydroxyvitamin D levels (1,910 nmol/L). He denied taking any vitamin D supplements; however, he reported consumption of creatine and protein supplements. Mass spectrometry analysis of the creatine supplement estimated a vitamin D content of 425,000 IU per serving (100 times the upper tolerable daily dose). A few months later, another previously healthy adolescent presented with severe hypercalcemia and acute kidney injury secondary to hypervitaminosis D. He was also using a creatine supplement, from the same manufacturer brand and lot. Both patients were treated with intravenous hydration, calcitonin, and pamidronate. They maintained normocalcemia after their initial presentation but required low-calcium diets and laboratory testing for months after this exposure. DISCUSSION/CONCLUSION: We present 2 cases of hypervitaminosis D caused by a manufacturing error of a natural health product which did not claim to contain vitamin D. The use of dietary supplements is highly prevalent; this should be incorporated while taking medical history, and considered a potential source of toxicity when an alternative source cannot be found, regardless of the product label.

Production of recombinant and therapeutic proteins in microalgae.

Microalgae is emerging as a promising platform for the production of recombinant proteins of therapeutic importance. Since microalgae are safe for oral consumption and some microalgal species can form extracellular vesicles, they can potentially be used as edible vaccines or drug-delivery vehicles in addition to their status as naturally rich sources of nutraceutical bioproducts. This article focuses on recent advances in the field of recombinant protein production in microalgae, and developments toward the use of microalgae as a vehicle for drug delivery.

Hospice care providers experiences of grappling with medical assistance in dying in a hospice setting: a qualitative descriptive study.

BACKGROUND: Rapid implementation of Medical Assistance in Dying (MAiD) across care settings has challenged providers and organizations, including hospices, to develop and implement new modes of practice. The aim of this study was to examine the effects that legalization of MAiD has had on hospice care provider roles within the non-provider context. METHODS: Eight in-depth semi-structured interviews were conducted and a qualitative descriptive approach used to examine hospice care providers experiences in a small western Canadian city. In the study context, patients who choose MAiD are cared for until immediately prior to the procedure when they are transferred off-site to undergo MAiD. Inductive and thematic analyses were undertaken. RESULTS: Participants experienced practical, philosophical, and professional challenges. Despite the overwhelming desire to support patient autonomy and decision-making, some interpreted patient choice for MAiD as rejection of the natural death experience at the hospice. Patient choice for MAiD initiated a new and different pathway of end-of-life care. While participants felt uncertain how best to support patients undergoing MAiD, they shared mixed optimism on how their care provider roles were evolving as their level of experience broadened. While implementation of MAiD was rapid, the introduction of practical and professional supports has remained slow to materialize, leaving many providers to navigate their own personal and professional positions and practices. CONCLUSION: Care providers require a multi-faceted range of clinical, legal, and logistical supports at the practice, organizational, and health system levels, to facilitate care delivery to those requesting and undergoing MAiD and to promote coordinated and holistic patient-centered care. The different pathway for those who chose MAiD may lead care providers to struggle with relational challenges and interpersonal unease. Further research may address how to support those undergoing MAiD within the hospice context.