MDRNA inks new research pact with Pfizer; The therapeutic benefits of dark chocolate;

 @FierceBiotech: Two high-profile biotech CEOs assess impact of reform bill. Report | Follow @FierceBiotech

 @JohnCFierce: According to Repros' last quarterly report, it ended 09 with $1.9M in cash and its third annual going concern warning. | Follow @JohnCFierce

> MDRNA announced a new RNAi research collaboration with Pfizer, its fourth pact in the past nine months. Financial terms were not released. MDRNA release

> The lab supplier Life Technologies is pledging to expand its operation in Frederick, MD, adding 100 jobs. Story

> The Durham, NC-based drug development services company Patheon is raising $280 million in a private placement. Report

And Finally... Chocolate may be good for you--at least in small quantities and preferably if it's dark chocolate--according to research that shows just one small square of chocolate a day can lower your blood pressure and reduce your risk of heart disease. The study is published online on March 31 in the European Heart Journal. Release