Human brains have a consistent molecular architecture despite all the other genetic differences across individuals and ethnicities, according to two studies that recorded when and where genes turn on and off in multiple brain regions throughout life.
Despite individual and ethnic genetic diversity, the human prefrontal cortex shows a consistent molecular architecture, as shown in this picture. The vertical span of color-coded areas is about the same, indicating that our brains all share the same tissue at a molecular level, despite distinct DNA differences on the horizontal axis. Each dot represents a comparison between two individuals.
The research appeared in the Journal Nature and was described by the National Institutes of Health in a press release.
The first study focused on Read more »
*This blog post was originally published at ACP Internist*
Race is a medically meaningless concept.
Spare me the few tired cliches about prostate cancer, diabetes, and sarcoidosis being more common in blacks than whites, or even the slightly increased risk of ACEI cough in patients of Asian descent. We screen Jews of Ashkenazi descent for Tay Sachs without any racial labeling. All that information is readily accessible under the Family History section of the medical history. It is no more than custom which dictates the standard introductory format including age, race, and gender. It turns out I’ve blogged about this before at some length (pretty good post, actually). What is new is the advent of electronic medical records.
Much hullabaloo has been made about federal stimulus funds allocated to doctors as payments for adopting EMRs; “up to $44,000!” Here’s the problem with that figure, though, including how it breaks down (source here): Read more »
*This blog post was originally published at Musings of a Dinosaur*