Pain Squad+ smartphone app to support real-time pain treatment for adolescents with cancer: protocol for a randomised controlled trial.

INTRODUCTION: Pain negatively affects the health-related quality of life (HRQL) of adolescents with cancer. The Pain Squad+ smartphone-based application (app), has been developed to provide adolescents with real-time pain self-management support. The app uses a validated pain assessment and personalised pain treatment advice with centralised decision support via a registered nurse to enable real-time pain treatment in all settings. The algorithm informing pain treatment advice is evidence-based and expert-vetted. This trial will longitudinally evaluate the impact of Pain Squad+, with or without the addition of nurse support, on adolescent health and cost outcomes. METHODS AND ANALYSIS: This will be a pragmatic, multicentre, waitlist controlled, 3-arm parallel-group superiority randomised trial with 1:1:1 allocation enrolling 74 adolescents with cancer per arm from nine cancer centres. Participants will be 12 to 18 years, English-speaking and with ≥3/10 pain. Exclusion criteria are significant comorbidities, end-of-life status or enrolment in a concurrent pain study. The primary aim is to determine the effect of Pain Squad+, with and without nurse support, on pain intensity in adolescents with cancer, when compared with a waitlist control group. The secondary aims are to determine the immediate and sustained effect over time of using Pain Squad+, with and without nurse support, as per prospective outcome measurements of pain interference, HRQL, pain self-efficacy and cost. Linear mixed models with baseline scores as a covariate will be used. Qualitative interviews with adolescents from all trial arms will be conducted and analysed. ETHICS AND DISSEMINATION: This trial is approved by the Hospital for Sick Children Research Ethics Board. Results will provide data to guide adolescents with cancer and healthcare teams in treating pain. Dissemination will occur through partnerships with stakeholder groups, scientific meetings, publications, mass media releases and consumer detailing. TRIAL REGISTRATION NUMBER: NCT03632343

Assessing Parents\u27 Needs in Using Phone Applications to Improve Medication Adherence in an Outpatient Pediatric Oncology Clinic.

BACKGROUND: Poor adherence in pediatric oncology leads to significant morbidity and mortality. Currently used medication reminder aids have shown little to no benefit in improving adherence. Phone applications (apps) have demonstrated improved adherence in recent studies involving the adult and pediatric patients. At this time, no pediatric oncology center is recommending a particular phone app. OBJECTIVE: The objective of this study was to determine the proportion of parents of pediatric oncology patients interested in using a phone app for medication reminders and desired features. METHODS: In this single-center observational trial, 45 questionnaires were completed by parents accompanying their child at a pediatric oncology center. See Supplemental Digital Content 1 (http://links.lww.com/JPHO/A327) for a copy of the questionnaire. Participants had a child on active cancer treatment and were able to read and write English. Primary outcomes included a number of parents currently using a phone app, the number of parents interested in using a phone app, main reasons for not using a phone app and desired phone app features. RESULTS: Overall, 95.6% of parents had never used a phone app to aid in medication adherence. Over 85% of these parents were highly interested in using a phone app, but most were not aware of available phone apps to use (57.1%). Desired features included: refill notifications, tracking doses administered, personalizable medication schedule, free of charge, no advertisements, ability to input special instructions, use on multiple devices, unique alarms, tracking child\u27s results, and privacy protection. CONCLUSIONS: A majority of parents at an outpatient pediatric oncology clinic were interested in using a phone app to assist in medication adherence but were unaware of an available phone app. An ideal criteria list was created with 10 desired features to evaluate available phone apps that may be recommended for this population. Further studies are needed to evaluate if phone apps recommended by this tool improve adherence

Genetic Disorders of Calcium and Phosphorus Metabolism

In this review, we describe genetic mutations affecting metabolic pathways of calcium and phosphorus homeostasis. Calcium and phosphorus homeostasis has tight hormonal regulation by three major hormones: vitamin D, parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23). We describe the physiology and pathophysiology of disorders, their biochemical profile, clinical characteristics, diagnostics, and treatments

Genetic Disorders of Calcium and Phosphorus Metabolism

In this review, we describe genetic mutations affecting metabolic pathways of calcium and phosphorus homeostasis. Calcium and phosphorus homeostasis has tight hormonal regulation by three major hormones: vitamin D, parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23). We describe the physiology and pathophysiology of disorders, their biochemical profile, clinical characteristics, diagnostics, and treatments

Measuring protein isoelectric points by AFM-based force spectroscopy using trace amounts of sample

Protein charge at various pH and isoelectric point (pI) values is important in understanding protein function. However, often only trace amounts of unknown proteins are available and pI measurements cannot be obtained using conventional methods. Here, we show a method based on the atomic force microscope (AFM) to determine pI using minute quantities of proteins. The protein of interest is immobilized on AFM colloidal probes and the adhesion force of the protein is measured against a positively and a negatively charged substrate made by layer-by-layer deposition of polyelectrolytes. From the AFM force–distance curves, pI values with an estimated accuracy of ±0.25 were obtained for bovine serum albumin, myoglobin, fibrinogen and ribonuclease A over a range of 4.7–9.8. Using this method, we show that the pI of the ‘footprint’ of the temporary adhesive proteins secreted by the barnacle cyprid larvae of Amphibalanus amphitrite is in the range 9.6–9.7