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Aims
In response to concerns regarding resource expenditures required to implement fully the 2012 National Institute on Aging and the Alzheimer's Association (NIA‐AA) Sponsored Guidelines for the neuropathological assessment of Alzheimer's disease (AD), we previously developed a sensitive and cost‐reducing condensed protocol (CP) at the University of Washington (UW) Alzheimer's Disease Research Center...
How the circadian clock regulates the timing of sleep is poorly understood. Here, we identify a Drosophila mutant, wide awake (wake), that exhibits a marked delay in sleep onset at dusk. Loss of WAKE in a set of arousal-promoting clock neurons, the large ventrolateral neurons (l-LNvs), impairs sleep onset. WAKE levels cycle, peaking near dusk, and the expression of WAKE in l-LNvs is Clock dependent...
Neuronal processes exhibit exquisitely complex branching patterns crucial for the formation of distinct neural circuits. In this issue of Cell, Chen et al. (2006) show that the isoform diversity of the Dscam protein in Drosophila is required to establish stereotypical axonal branching patterns, suggesting that nonrandom expression of Dscam alternative splice variants determines neural connectivity.
The mitotic checkpoint blocks the activation of the anaphase-promoting complex (APC) until all sister chromatids have achieved bipolar attachment to the spindle. A checkpoint complex containing BubR1 and Bub3 has been purified from mitotic human cells. Upon checkpoint activation, the BubR1-Bub3 complex interacts with Cdc20. In the absence of Mad2, BubR1 inhibits the activity of APC by blocking the...
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