health - "study published"

People who drink alcohol are less prone to the sometimes crippling disease called rheumatoid arthritis compared with non-drinkers, according to a Scandinavian study published on Wednesday.

Researchers report this week that they are the first to observe the dynamic, ratchet-like movements of single ribosomal molecules in the act of building proteins from genetic blueprints. (View animation.)Their study, published in the journal Molecular Cell, reveals a key mechanism in the interplay of molecules that allows cells to build the proteins needed to sustain life.