Word: blood
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This is a finding five years in the making. Virologist Robin Weiss of University College London began to study the relevant receptor in 2003, after seeing earlier research that showed how variation in another gene similarly blocked the receptor that allows HIV to enter white blood cells; far fewer people carry that variant. In the lab, Weiss found that the African-specific receptor, called DARC, or duffy antigen receptor for chemokines, also interacted with HIV: the receptor binds to a wide array of proteins that suppress the virus's replication. Intrigued, but unable to explain why the lack...
Published in the journal Cell Host & Microbe, the findings center around one gene variation that blocks a receptor from being expressed on the surface of red blood cells. Scientists had previously studied this genetic variant - found almost exclusively in Africans and their descendants - because it also conferred protection against an early form of malaria. (The malaria parasite needed the receptor to infect blood cells; without the receptor, the parasite starved and died.) More than 90% of sub-Saharan Africans lack the red-blood-cell receptor, along with two-thirds of African-Americans. But the variant that once saved its carriers...
...remember Jack Kevorkian, the pathological pathologist who, when he wasn't transfusing blood from corpses, refining his "mercitron" machine or arguing for an auction market for human organs, used to help people commit suicide in a rusty van in a public park. So maybe it's no surprise that in the Year of the Outsider, he's finally out of jail (eight years for second-degree murder) and running for Congress as an independent in the Fifth District in Michigan...
...manage to maintain and convey the emotion of a piece after playing it hundreds of times? -Umesh Panchaksharaiah Richmond, Calif.The first time you play a piece, your blood pressure is high. The second time, you are more clear in your mind. I always play a piece three times in a row, and then I stop and get another piece out. That way, there's always a freshness...
...record assessment of what life there is really like. As Obama later wrote in his book The Audacity of Hope, that session turned out to be a valuable reality check, a reminder of "just how quixotic our efforts in Iraq still seemed - how, with all the American blood, treasure and the best of intentions, the house we were building might be resting on quicksand...