09-22-2011, 05:43 AM
http://blogs.discovermagazine.com/80beat...xpression/
Quote:"Tiny bits of genetic material, called microRNAs, can make their way from the food you eat into your blood stream, and change how your genes are expressed, according to a new study. A team of Chinese scientists found tiny bits of white rice microRNA floating around in people's blood after a meal. When they looked at what was happening on a cellular level, they found that the microRNAs were changing gene expression, decreasing levels of a receptor that filters out LDL (bad) cholesterol. When the scientists gave mice both rice and a chemical to block the microRNAs, their levels of that receptor returned to normal---showing that the microRNAs weren't just swimming through the blood stream, but acting on genes in the animals' cells."