Mouse (IMAGE) Rockefeller University Caption Mouse embryos, like the one depicted here, die in utero if they are missing the choline transporter FLVCR1. But giving them supplemental choline can increase their lifespan. Credit Laboratory of Metabolic Regulation and Genetics at The Rockefeller University Usage Restrictions Image may be used to illustrate research described in the accompanying release. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.