Everyday experiences of post-diagnosis life with dementia: A co-produced photography study

There has been surprisingly little research capturing people’s everyday lives in the early years following a diagnosis of dementia. This project was co-produced by three people with dementia and two university researchers. The co-researchers with dementia formulated the aims of this project as: (1) to explore post-diagnosis life with dementia and (2) to use data collection methods as a form of peer support and confidence building for the participants. The intent was to provide the opportunity to learn new skills and support participants to share their experiences without putting them on the spot. Five participants with recent diagnoses received a photography lesson and cameras to take photographs of their everyday lives. This was followed with a focus group in which the photographs were discussed. The participants used their photographs to explain: (1) the differences between their past and present with dementia, (2) how dementia affected their thought processes, (3) pets and grandchildren as facilitators of reciprocal joy and support, (4) the emotional effects of living with a dementia diagnosis, and (5) the solace and stability of nature in a changing world. The participants’ creative use of photography supported them to express the complex emotions felt after a diagnosis of dementia and they reported the benefit of doing this in an environment with peers going through the same experiences. The role of the co-researchers with dementia was the key to the success of this project, drawing on their own experiences to design the project and support the participants. Future research should draw on the experiences of people with dementia to design research projects and care interventions

The USNO-B Catalog

USNO-B is an all-sky catalog that presents positions, proper motions, magnitudes in various optical passbands, and star/galaxy estimators for 1,042,618,261 objects derived from 3,643,201,733 separate observations. The data were obtained from scans of 7,435 Schmidt plates taken for the various sky surveys during the last 50 years. USNO-B1.0 is believed to provide all-sky coverage, completeness down to V = 21, 0.2 arcsecond astrometric accuracy at J2000, 0.3 magnitude photometric accuracy in up to five colors, and 85% accuracy for distinguishing stars from non-stellar objects. A brief discussion of various issues is given here, but the actual data are available from http://www.nofs.navy.mil and other sites.Comment: Accepted by Astronomical Journa

CD4+ regulatory T cells require CTLA-4 for the maintenance of systemic tolerance

Cytotoxic T lymphocyte antigen-4 (CTLA-4) plays a critical role in negatively regulating T cell responses and has also been implicated in the development and function of natural FOXP3+ regulatory T cells. CTLA-4–deficient mice develop fatal, early onset lymphoproliferative disease. However, chimeric mice containing both CTLA-4–deficient and –sufficient bone marrow (BM)–derived cells do not develop disease, indicating that CTLA-4 can act in trans to maintain T cell self-tolerance. Using genetically mixed blastocyst and BM chimaeras as well as in vivo T cell transfer systems, we demonstrate that in vivo regulation of Ctla4−/− T cells in trans by CTLA-4–sufficient T cells is a reversible process that requires the persistent presence of FOXP3+ regulatory T cells with a diverse TCR repertoire. Based on gene expression studies, the regulatory T cells do not appear to act directly on T cells, suggesting they may instead modulate the stimulatory activities of antigen-presenting cells. These results demonstrate that CTLA-4 is absolutely required for FOXP3+ regulatory T cell function in vivo

Multiple novel prostate cancer susceptibility signals identified by fine-mapping of known risk loci among Europeans

Genome-wide association studies (GWAS) have identified numerous common prostate cancer (PrCa) susceptibility loci. We have fine-mapped 64 GWAS regions known at the conclusion of the iCOGS study using large-scale genotyping and imputation in 25 723 PrCa cases and 26 274 controls of European ancestry. We detected evidence for multiple independent signals at 16 regions, 12 of which contained additional newly identified significant associations. A single signal comprising a spectrum of correlated variation was observed at 39 regions; 35 of which are now described by a novel more significantly associated lead SNP, while the originally reported variant remained as the lead SNP only in 4 regions. We also confirmed two association signals in Europeans that had been previously reported only in East-Asian GWAS. Based on statistical evidence and linkage disequilibrium (LD) structure, we have curated and narrowed down the list of the most likely candidate causal variants for each region. Functional annotation using data from ENCODE filtered for PrCa cell lines and eQTL analysis demonstrated significant enrichment for overlap with bio-features within this set. By incorporating the novel risk variants identified here alongside the refined data for existing association signals, we estimate that these loci now explain ∼38.9% of the familial relative risk of PrCa, an 8.9% improvement over the previously reported GWAS tag SNPs. This suggests that a significant fraction of the heritability of PrCa may have been hidden during the discovery phase of GWAS, in particular due to the presence of multiple independent signals within the same regio

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

Exploring the Added Value of Inclusive Dementia Research Throughout (and Beyond) the Research Process

The need for the ‘voice’ of people living with dementia to be present in research has been gaining prominence in recent years. This has been realised through the rise of ‘inclusive research’, seeking to redress unequal power dynamics that have long dominated research. However, the impact and merit of inclusive research have been questioned, with questions around what value the involvement of disabled people as co-researchers adds to the research process and impact. With reference to an inclusive photovoice project on dementia post-diagnosis experiences, we address these debates through exploring the arc of the research project in three phases. In Phase 1 project notes and reflective conversations between the research team are drawn on to examine how the lived experience of researchers living with dementia shaped the focus and the methods employed. In Phase 2 conversation analysis is used to examine the interactional delivery of the focus group, showing that the researchers living with dementia used a mix of facilitation techniques to encourage and support talk, drawing on their own expertise by experience as an interactional tool to encourage participants to talk. In Phase 3 thematic analysis of participant follow up interviews is employed to examine experiences of taking part in the research. Participants reported improved positive self-image, benefits from peer support, and increased motivation to engage in future activities because of participation. We argue that the value the researchers with dementia added was not just confined to the focus of the research, but was ‘baked into’ project design delivery, and impact upon participants living with dementia. We show that the ‘added value’ of inclusive research shaped the research methods and delivery to fit participants, supported increased participation and agency from participants during the research, and enabled participants to contest deficit framing(s) of dementia after leaving the research project