TY - JOUR T1 - PLasma β-amyloid level, cognitive reserve, and cognitive decline AU - Okereke OI, Selkoe DJ, Grodstein F Y1 - 2011/04/27 N1 - 10.1001/jama.2011.524 JO - JAMA SP - 1655 EP - 1656 VL - 305 IS - 16 N2 - To the Editor: Dr Yaffe and colleagues recently reported that lower levels of plasma β-amyloid 42/40 were related to worse rates of cognitive decline.1 A major finding was the observation of an interaction between cognitive reserve (as measured by education, literacy, or apolipoprotein E [APOE] ε4 status) and plasma β-amyloid 42/40. Although this finding is intriguing, and the consistency of the interaction across all 3 measures of cognitive reserve is suggestive, nonetheless caution is warranted. Yaffe et al1 found little association between β-amyloid 42/40 levels and cognitive decline in those with at least a high school education. SN - 0098-7484 M3 - doi: 10.1001/jama.2011.524 UR - http://dx.doi.org/10.1001/jama.2011.524 ER -