A father’s genes may contribute to his partner’s risk of preeclampsia, the dangerously high blood pressure condition that can occur in pregnancy, a Norwegian-American study has found.It’s been known that women born after a pregnancy affected by preeclampsia are at increased risk of experiencing the condition in their own pregnancies. Now, a study of more than 700,000 births in Norway shows that men born after such a pregnancy have a moderately increased risk of fathering a child where the complication occurs, as well, according to a report in the Sept. 15 online issue of the British Medical Journal.