Should weed be part of AIDS prevention? Daily marijuana use by the HIV-positive could block them from infecting others, the Daily Beast reports:
The study itself was fairly simple. For 17 months, Dr. Molina and her team at Louisiana State University administered a high concentration of THC to 4-to-6-year-old male rhesus monkeys who were RIV-positive (a virus in chimps similar to HIV), twice daily. An examination of the tissue in their intestines before and after the chronic THC exposure revealed dramatic decreases in immune tissue damage in the stomach and a significant increase in the numbers of normal cells.
During HIV infection, one of the earliest effects is that the virus spreads rapidly throughout the body and kills a significant part of cells in the gut and intestine. This activity damages the gut in a way that allows the HIV to leak through the cell wall of the intestines and into the bloodstream.