又是两个自闭症相关的基因，估计再发现下去没完没了。
Expert calls new findings a 'crack in the facade' of the disorder,,
TUESDAY, April 28 (HealthDay News) -- Inheriting abnormal mutations of two common genes can raise the risk for developing autism, according to one of two new studies highlighting the complex genetic roots of the disorder.
Both genes are located in the brain's frontal lobe region, responsible for complex social behavior and abstract thought, and are normally involved in the proper functioning of healthy brain cell connections. Both also play a key role in the formation of those connections, or synapses, which allow brain cells to communicate and enable learning, cognition, and memory.
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