https://www.selleckchem.com/products/brd-6929.html 57, 95% CI 0.35-0.95, p = 0.031). Meanwhile, all the estimates from other sensitivity analysis methods were consistent with the IVW estimate in terms of direction and magnitude. Conclusion In summary, we provided evidence that increased serum calcium levels could reduce the risk of AD. Meanwhile, randomized controlled study should be conducted to clarify whether diet calcium intake or calcium supplement, or both could reduce the risk of AD.Care home residents with dementia often have accompanying agitation. We investigated agitation's course at 5 time-points in 1,424 people with dementia over 16 months in 86 English care homes. We categorized baseline agitation symptoms on the Cohen-Mansfield Agitation Inventory (CMAI) into none (CMAI = 29; 15%), subclinical (CMAI = 30-45; 45%), or clinically-significant (CMAI > 45; 40%). 88% of those with no agitation at baseline remained free of clinically-significant agitation at all follow-ups. Seventy percent of those exhibiting clinically-significant agitation at baseline had clinically-significant agitation at some follow-ups. Over a 16-month observation period, this study finds many care home residents with dementia never develop clinically significant agitation and interventions should be for treatment not prevention.Background While sex differences in incidence of Alzheimer's disease (AD) and potential explanations have received considerable attention, less attention has been paid to possible sex differences in genetic risk for AD. Objective We examined sex differences in genetic and environmental influences on disease risk and age at onset for All Dementia, AD Only, and Non-AD Dementia. Methods Twin pairs were drawn from the Swedish Twin Registry. All Dementia analysis included 9,467 pairs; AD only, 8,696 pairs; and non-AD dementia, 8,195 pairs. APOE analyses included 1,923 individual twins with measured ɛ4 alleles. Dementia diagnoses were based on clinical workup and nat