Medical College of Wisconsin researchers identify proteins that help develop mammalian hearts
(Medical College of Wisconsin) The absence of two proteins in mammalian embryos prevents the development of a healthy heart, a new study by researchers at the Medical College of Wisconsin, Milwaukee, has found. The study, which appears in the May 15 issue of Developmental Biology, was led by Stephen Duncan, Ph.D., professor of cell biology, neurobiology and anatomy at the Medical College.
Democrat Barack Obama's appeal to  centrist voters has further opened the door to Republican claims his message of change only applies to the positions he has taken in the past.
AP - Iran indicated Saturday that it has no plans to meet a key Western demand that it stop enriching uranium, a day after Tehran sent the European Union a response to an international offer of incentives for halting enrichment.
AP - The call girl involved in a scandal that brought down New York's former governor has dropped a lawsuit claiming "Girls Gone Wild" founder Joe Francis exploited her image and name on the Internet.