You have maybe heard about how environmental exposures after conception or birth may affect genetic expression and then risk of developing autism. But what research has been done to look at preconceptional exposures, presumably exposures that affect the cells that then give rise to sperm and eggs? Turns out they are susceptible to some environmental exposure too, which could lead to a change in the way genes are expressed in the embryo, the fetus, and then the child. Want to know more? Jill Escher just published a study with scientific colleagues about this hypothesis and she explains it in this week’s podcast.

https://pubmed.ncbi.nlm.nih.gov/34596807/