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POPSPathologists Believe They Have Pinpointed Achilles Heel of HIV Sudhir Paul, Ph.D., pathology professor in the UT Medical School, said, “Unlike the changeable regions of its envelope, HIV needs at least one region that must remain constant to attach to cells. If this region changes, HIV cannot infect cells. Equally important, HIV does not want this constant region to provoke the body’s defense system. So, HIV uses the same constant cellular attachment site to silence B lymphocytes - the antibody producing cells. The result is that the body is fooled into making abundant antibodies to the changeable regions of HIV but not to its cellular attachment site. Immunologists call such regions superantigens. HIV’s cleverness is unmatched. No other virus uses this trick to evade the body’s defenses.”
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POPSMiley Cyrus: "Nobody's Perfect" Indeed I really don't get what people are so upset about. It is a beautiful picture, probably one of the best I saw in a long time (I thought it looks like a Rubens painting but I couldn't find it, if anyone have an idea I'll be grateful) P.S. that kid is smart, I bet she'll never pull a Lohan or a Britney.
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