Embryo Experiments Reveal Earliest Human Development, But Stir Ethical Debate

March 3, 2017

(NPR) – Brivanlou knows that some of his research makes some people uncomfortable. That’s one reason he has agreed to give me a look at what’s going on. His lab and one other discovered how to keep human embryos alive in lab dishes longer than ever before — at least 14 days. That has triggered an international debate about a long-standing convention (one that’s legally binding in some countries, though not in the U.S.) that prohibits studying human embryos that have developed beyond the two-week stage.