Dementia Care Research and Psychosocial Factors.

Background: Previous What Matters Most (WMM) research identified and verified patient-important concepts among a diverse population of people living with Alzheimer's disease (PLWAD) and their care partners across all stages of Alzheimer's disease (AD). Additionally, a conceptual model of disease was developed using hypothesized domains and was further refined using qualitative data (Figure 1). This next phase of WMM research aims to quantify the importance of concepts, impacts, and outcomes and to determine priorities among PLWAD and care partners within a diverse sample including underrepresented ethnic and racial groups at each level of disease severity.

Multi-ancestry genome-wide association study of severe pregnancy nausea and vomiting identifies risk loci associated with appetite, insulin signaling, and brain plasticity.

While most pregnancies are affected by nausea and vomiting, hyperemesis gravidarum (HG) is at the severe end of the clinical spectrum and is associated with dehydration, undernutrition, and adverse maternal, fetal, and child outcomes. Herein we performed a multi-ancestry genome-wide association study (GWAS) of severe nausea and vomiting of pregnancy of 10,974 cases and 461,461 controls across European, Asian, African, and Latino ancestries. We identified ten significantly associated loci, of which six were novel ( , , , , , and and confirmed previous genome-wide significant associations with risk genes , , , and .

Genetically predicted gene expression effects on changes in red blood cell and plasma polyunsaturated fatty acids.

Polyunsaturated fatty acids (PUFAs) including omega-3 and omega-6 are obtained from diet and can be measured objectively in plasma or red blood cells (RBCs) membrane biomarkers, representing different dietary exposure windows. conversion of omega-3 and omega-6 PUFAs from short-to long-chain counterparts occurs via a shared metabolic pathway involving fatty acid desaturases and elongase. This analysis leveraged genome-wide association study (GWAS) summary statistics for RBC and plasma PUFAs, along with expression quantitative trait loci (eQTL) to estimate tissue-specific genetically predicted gene expression effects for delta-5 desaturase ( ), delta-6 desaturase ( ), and elongase ( ) on changes in RBC and plasma biomarkers.

Core Outcome Set development for LEPtospirosis trials (COS-LEP): a study protocol to develop a core outcome set for the evaluation of clinical therapeutic interventions for human leptospirosis.

Background: Leptospirosis is a zoonotic bacterial infection occurring worldwide. It is of particular public health concern due to its global distribution, epidemic potential and high mortality without appropriate treatment. The method for the management of leptospirosis, particularly in severe disease, is clouded by methodological inconsistency and a lack of standardized outcome measures.

COVID-19 Misperceptions and Masking Compliance: A Support Marshaling Analysis.

Misperceptions strongly influence the extent to which individuals comply with preventative measures. Social support from others, particularly given widespread mistrust in news media among those holding misperceptions, plays an important role in shaping compliance with preventative measures. The impact of social support, however, is not straightforward and not all support results in greater compliance.