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Animals can detect and consume nutritive sugars without the influence of taste. However, the identity of the taste-independent nutrient sensor and the mechanism by which animals respond to the nutritional value of sugar are unclear. Here, we report that six neurosecretory cells in the Drosophila brain that produce Diuretic hormone 44 (Dh44), a homolog of the mammalian corticotropin-releasing hormone...
Despite significant heritability of autism spectrum disorders (ASDs), their extreme genetic heterogeneity has proven challenging for gene discovery. Studies of primarily simplex families have implicated de novo copy number changes and point mutations, but are not optimally designed to identify inherited risk alleles. We apply whole-exome sequencing (WES) to ASD families enriched for inherited causes...
Stem cells in different regions of the nervous system give rise to different types of mature cells. This diversity is assumed to arise in response to local environmental differences, but the contribution of cell-intrinsic differences between stem cells has been unclear. At embryonic day (E)14, neural crest stem cells (NCSCs) undergo primarily neurogenesis in the gut but gliogenesis in nerves. Yet...
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