The chorion lies closest to the placenta. The chorionic sac encompasses the fetus and the amnion and is covered with chorionic villi until the 8th week. After the 8th week, these villi are ...

Reporting in Nature, Swingle et al. use a DNA barcoding approach to identify an LNP formulation that delivers therapeutic mRNA to the placenta and alleviates hypertension in mouse models of pre ...