T cells recognize a wide range of pathogens using surface receptors that interact directly with peptides presented on major histocompatibility complexes (MHC) encoded by the HLA loci in humans. Understanding the association between T cell receptors (TCR) and HLA alleles is an important step towards predicting TCR-antigen specificity from sequences. Here we analyze the TCR alpha and beta repertoires of large cohorts of HLA-typed donors to systematically infer such associations, by looking for overrepresentation of TCRs in individuals with a common allele.
View Article and Find Full Text PDFBackground: Differentiating idiopathic Parkinson disease (iPD) from other causes of tremor and parkinsonism based on clinical grounds can be challenging, particularly early in the course of disease or in the case of atypical clinical presentations. F-fluorodopa (F-DOPA) is a positron emission tomography (PET) radioligand that can be used to demonstrate the presence and pattern of striatal presynaptic dopaminergic deficit and, thus, assist in the diagnosis of iPD and related disorders.
Aims: To determine the clinical utility of F-DOPA PET in an Australian movement disorder clinic setting.
Background: Digital interventions typically involve using smartphones or PCs to access online or downloadable self-help and may offer a more accessible and convenient option than face-to-face interventions for some people with mild to moderate eating disorders. They have been shown to substantially reduce eating disorder symptoms, but treatment dropout rates are higher than for face-to-face interventions. We need to understand user experiences and preferences for digital interventions to support the design and development of user-centered digital interventions that are engaging and meet users' needs.
View Article and Find Full Text PDFAgeism - stereotyping, prejudice, and discrimination based on chronological age - is a highly prevalent yet underrecognized form of social discrimination with detrimental effects on healthy aging. Combating ageism is essential for creating an age-friendly society; however, there is no consensus on the optimal approach for doing so. In this manuscript, we posit that community-based participatory research holds promise for addressing and reframing ageism, especially in underserved minoritized communities.
View Article and Find Full Text PDFChronological lifespan (CLS) in budding yeast Saccharomyces cerevisiae, which is defined as the time nondividing cells in saturation remain viable, has been utilized as a model to study post-mitotic aging in mammalian cells. CLS is closely related to entry into and maintenance of a quiescent state. Many rearrangements that direct the quiescent state enhance the ability of cells to endure several types of stress.
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