2015新发表的文献：

DNA extracted from saliva for methylation studies of psychiatric traits: Evidence tissue specificity and relatedness to brain.

主要结论：

1. 通过DNA甲基化信息，可以用唾液采集来研究精神疾病；

2. 唾液DNA甲基化比血液variance更大

There was more variability in CpG sites from saliva than blood, which may reflect its heterogeneity.

3. 相对血液，唾液DNA甲基化更“象”脑部变化；

Finally, DNA methylation in saliva appeared more similar to patterns from each of the brain regions examined overall than methylation in blood.

http://www.ncbi.nlm.nih.gov/pubmed/25355443

 

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