Important differences in the expression and effect of maternal and paternal PTSD were found when examining parental PTSD in the offspring of Holocaust survivors and methylation of the glucocorticoid receptor gene exon 1F. 

Objective: There is growing evidence that exposure to trauma prior to conception can affect offspring. The authors have reported that adult offspring of Holocaust survivors showed lower methylation of FK506 binding protein 5 (FKBP5) intron 7, site 6 ...