The effectiveness of providing training and ongoing support to foster cultural humility in volunteers serving as mentors to youth of color: a mixed-methods study protocol.

Background: The aim of this randomized control trial is to test the impact of providing additional training and support to volunteers who are paired with youth of color in the Big Brothers Big Sisters (BBBS) community-based mentoring program. The aim of the intervention activities is to enhance the capacity of mentors to have more culturally responsive and informed interactions with their mentees of color, thereby strengthening the youth's ethnic/racial identity and abilities to both cope with experiences of racism and contribute to causes that advance social justice.

Methods: Recruitment started in June 2022, with a goal of enrolling 240 dyads (i.

Interferon-α promotes HLA-B-restricted presentation of conventional and alternative antigens in human pancreatic β-cells.

Interferon (IFN)-α is the earliest cytokine signature observed in individuals at risk for type 1 diabetes (T1D), but the effect of IFN-α on the antigen repertoire of HLA Class I (HLA-I) in pancreatic β-cells is unknown. Here we characterize the HLA-I antigen presentation in resting and IFN-α-exposed β-cells and find that IFN-α increases HLA-I expression and expands peptide repertoire to those derived from alternative mRNA splicing, protein cis-splicing and post-translational modifications. While the resting β-cell immunopeptidome is dominated by HLA-A-restricted peptides, IFN-α largely favors HLA-B and only marginally upregulates HLA-A, translating into increased HLA-B-restricted peptide presentation and activation of HLA-B-restricted CD8 T cells.

Identifying people at risk of rheumatoid arthritis in primary care: qualitative study.

Background: Identification of rheumatoid arthritis (RA) in primary care is challenging and often delayed. Anti-cyclic citrullinated peptide (anti-CCP) antibody testing of people presenting to primary care with new-onset musculoskeletal symptoms without synovitis could help address this; those testing positive are at increased risk of developing RA.

Aim: To explore how primary care clinicians currently identify and refer patients with suspected RA, and the behaviours required to implement a prediction model for guiding targeted anti-CCP testing for non-specific musculoskeletal symptoms in primary care.

Estimating Recent US Limb Loss Prevalence and Updating Future Projections.

Objective: To estimate limb loss prevalence in the United States (US) by etiology and anatomical position and the trends of limb loss over 40 years.

Design: We used the National Inpatient Sample, Healthcare Cost and Utilization Project to estimate current and future limb loss prevalence in the US and by anatomical location. Prevalence estimates were based on the incidence and duration of the disease.