Augix Guohua XU's List: Biology

• RNA can store information, speed up chemical reactions, and make copies of itself without any outside help. It evolves too
• In fact, ice actually stabilised the ribozyme, preventing it from breaking down. On ice, the ribozyme was slower than at room temperature but it also carried on working for longer. As a result, it was actually more productive, creating longer lengths of RNA with no less accuracy.

• We have stained  neurons and endothelial cells in human brains by antibodies against cell type-specific marker proteins, isolated the cells  using laser capture microdissection, and identified genes preferentially expressed in the two cell types.
• We find that genes preferentially expressed in neurons differ less across tissues and developmental stages than genes preferentially  expressed in endothelial cells.
• We also observe less expression differences within primate species for neuronal transcriptomes.

• we see more gene expression differences between humans, chimpanzees, and rhesus macaques relative to within-species  differences in genes expressed preferentially in neurons than in genes expressed in endothelial cells. This suggests that  neuronal and endothelial transcriptomes evolve at different rates within brain tissue. 

   

   

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