Lauren Harris

SCF β-TRCP suppresses angiogenesis and thyroid cancer cell migration by promoting ubiquitination and destruction of VEGF receptor 2

The E3 ubiquitin ligase β-TRCP, acting in concert with casein kinase I, drives ubiquitination and degradation of VEGFR2, and renders human papillary thyroid cancer cells resistant to the VEGFR2 inhibitor sorafenib.

Glucose metabolism impacts the spatiotemporal onset and magnitude of HSC induction in vivo

Many pathways regulating blood formation have been elucidated, yet how each coordinates with embryonic biophysiology to modulate the spatiotemporal production of hematopoietic stem cells (HSCs) is currently unresolved. Here, we report that glucose metabolism impacts the onset and magnitude of HSC induction in vivo. In zebrafish, transient elevations in physiological glucose levels elicited dose-dependent effects on HSC development, including enhanced runx1 expression and hematopoietic cluster formation in the aorta-gonad-mesonephros region; embryonic-to-adult transplantation studies confirmed glucose increased functional HSCs. Glucose uptake was required to mediate the enhancement in HSC development; likewise, metabolic inhibitors diminished nascent HSC production and reversed glucose-mediated effects on HSCs. Increased glucose metabolism preferentially impacted hematopoietic and vascular targets, as determined by gene expression analysis, through mitochondrial-derived reactive oxygen species (ROS)-mediated stimulation of hypoxia-inducible factor 1α (hif1α). Epistasis assays demonstrated that hif1α regulates HSC formation in vivo and mediates the dose-dependent effects of glucose metabolism on the timing and magnitude of HSC production. We propose that this fundamental metabolic-sensing mechanism enables the embryo to respond to changes in environmental energy input and adjust hematopoietic output to maintain embryonic growth and ensure viability.

iCanCope with Pain™: User-Centred Design of a Web- and Mobile-Based Self-Management Program for Youth with Chronic Pain Based on Identified Health Care Needs

Chronic pain self-management involves providing patients with knowledge, coping strategies and social support that help them to manage their pain. This type of intervention has been shown to be useful in treating chronic pain; however, many eligible chronic pain patients never receive such treatment due to limited accessibility and high cost. The use of Internet-based cognitive behavioural therapy has the potential to change this. In this study, the authors report their progress in the development of an Internet- and smartphone-based application for chronic pain self-management.

A qualitative content analysis of peer mentoring video calls in adolescents with chronic illness

This article endeavored to determine the topics of discussion during open-ended peer mentoring between adolescents and young adults living with chronic illness. This study occurred alongside a study of the iPeer2Peer Program. Fifty-two calls (7 mentor–mentee pairings) were audio recorded, transcribed verbatim, and analyzed using inductive coding with an additional 30 calls (21 mentor–mentee pairings) coded to ensure representativeness of the data. Three categories emerged: (1) illness impact (e.g., relationships, school/work, self-identity, personal stories), (2) self-management (e.g., treatment adherence, transition to adult care, coping strategies), and (3) non-illness-related adolescent issues (e.g., post-secondary goals, hobbies, social environments). Differences in discussed topics were noted between sexes and by diagnosis. Peer mentors provided informational, appraisal, and emotional support to adolescents.

Been There, Done That: The Experience of Acting as a Young Adult Mentor to Adolescents Living With Chronic Illness

Objective To explore the perceived benefits and challenges of acting as a young adult peer mentor to adolescents with chronic illness. Methods A qualitative descriptive study, using interviews and a focus group, explored the perceptions of young adult peer mentors following participation in the iPeer2Peer program, a Skype-based peer-mentorship program for adolescents with chronic illness. Interviews and focus group data were transcribed and analyzed using inductive content analysis. Results Ten peer mentors (20.00 ± 1.49 years old, range 17-22 years; diagnosed with chronic pain [n = 4] or juvenile idiopathic arthritis [n = 6]) who mentored four mentees (±2.55 mentees, range = 1-10 mentees) participated. Four main categories were identified: social connection, personal growth, mentor role in mentee growth, and logistics of mentorship. Conclusions Acting as a peer mentor online is a feasible and rewarding experience that supports the mentors own illness self-management, social connection, and personal growth.

The quality of information about sickle cell disease on the Internet for youth

Adolescence is a vulnerable time for teens with sickle cell disease (SCD). Although there is evidence to support the use of web‐based education to promote self‐management skills in patients with chronic illnesses, the quality of SCD‐related information on the Internet has not been assessed.

“I Learned to Let Go of My Pain”. The Effects of Mindfulness Meditation on Adolescents with Chronic Pain: An Analysis of Participants’ Treatment Experience

Chronic pain can lead to significant negative outcomes across many areas of life. Recently, mindfulness-based interventions (MBIs) have been identified as potentially effective tools for improved pain management among adolescents living with pain. This study aimed to explore the experience of adolescents who participated in an eight-week mindfulness group adapted for adolescents with chronic pain (MBI-A), and obtain their feedback and suggestions on group structure and content. A mixed method design was used employing qualitative data from focus groups and data from a satisfaction questionnaire. Focus group data were transcribed and analyzed using inductive simple descriptive content analysis. Of the total participants (n = 21), 90% (n = 19) provided feedback by completing satisfaction questionnaires and seventeen (n = 17) of those also participated across two focus groups. Analysis of the focus group transcripts uncovered six themes: mindfulness skills, supportive environment, group exercises (likes and dislikes), empowerment, program expectations, and logistics. Participants reported positive experiences in the MBI-A program, including support received from peers and mindfulness skills, including present moment awareness, pain acceptance, and emotion regulation. Group members suggested increasing the number of sessions and being clearer at outset regarding a focus on reduction of emotional suffering rather than physical pain.

Understanding the use of over-the-counter pain treatments in adolescents with chronic pain

ABSTRACT Background: The prevalence of chronic pain in children and adolescents is well established. What is not well understood is how over-the-counter (OTC) oral and topical pain treatments are being used by adolescents with chronic pain, their decision making around use of these products, and how they communicate with their health care providers about their use. Aims: The aim of this study was to explore the use, decision-making process, and communication about the use of OTC pain medications with health care professionals among adolescents living with chronic pain and their primary caregiver. Methods: A qualitative descriptive design with semistructured, audiotaped individual interviews was undertaken with adolescents with chronic pain (n = 15, aged 12–18 years, mean age = 16, SD = 1.79) and their caregivers (n = 16). A convenience sample of patient–caregiver dyads was recruited from a tertiary care pediatric chronic pain clinic in Ontario. Results: Interview questions focused on four topics: (1) experience with chronic pain and medication; (2) perceptions of medications and concerns with long-term consumption; (3) decision making for use of OTC medications guided mainly by a trusted source or health care professional; and (4) topical OTC medications perceived as harmless. Content analysis within these four topics uncovered two to four subthemes, which are described in detail. Conclusions: An improved understanding of the prevalence of use, decision-making process around use, and how patients and their families communicate about the use of OTC pain medications with health care providers can help clinicians better personalize treatments and help adolescents with chronic pain to make sound self-care decisions.