Living systems owe their existence to a pair of information-carrying molecules: DNA and RNA. These fundamental chemical forms possess two features essential for life: they display heredity — meaning they can encode and pass on genetic information, and they can adapt over time, through processes of Darwinian evolution.
A long-debated question is whether heredity and evolution could be performed by molecules other than DNA and RNA.
Scientists have found that changes in expression of small RNA molecules, termed microRNAs, may be a novel way to detect acute myocardial infarction (AMI) or heart attack. Two microRNAs, miR208 and miR499, in particular were shown to be significantly increased … Continue reading →
Antibiotic resistant bacteria infections are on the rise. Numbers of MRSA (methicillin-resistant Staphylococcus aureus) cases are skyrocketing and ways to treat them are limited. By using the proteins expressed in the bacteria itself, scientists have found a new way to … Continue reading →