Cotton-derived compound functions as an anti-HIV agent: Gossypol, a natural compound isolated from cotton, increases Heme oxygenase 2 (HO-2) expression, blocks N-myristoylation of HIV-1 Gag protein, disrupts HIV-1 budding, and restricts HIV-1 production via up regulation of its target gene, 3/April/2017, 10.08 pm