title: Anti-HIV-1 efficacy of extracts from medicinal plants.
abstract: The anti-HIV-1 activities of butanol, hexane, chloroform and water extracts from four widely used folk medicinal plants (Sophora flavescens, Tulipa edulis, Herba ephedra, and Pachyma hoelen Rumph) were evaluated in this study. The hexane extract of Pachyma hoelen Rumph, PH-4, showed effective inhibition against HIV-1. The 50% effective concentration (EC(50)) of PH-4 was 37.3 microg/ml in the p24 antigen assay and 36.8% in the HIV-1 recombinant RT activity test (at 200 microg/ml). In addition, the PH-4 showed the protective effect on the infected MT-4 cells, with a 58.2% rate of protection. The 50% cytotoxic concentration (CC(50)) of PH-4 was 100.6 microg/ml. These results suggest that PH-4 from Pachyma hoelen Rumph might be the candidate for the chemotherapy agent against HIV-1 infection with further study.
authors.affiliation: Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea.
authors.forename: Su-A
authors.initials: SA
authors.lastname: Lee
authors.forename: Seong-Karp
authors.initials: SK
authors.lastname: Hong
authors.forename: Chang-Il
authors.initials: CI
authors.lastname: Suh
authors.forename: Mi-Hwa
authors.initials: MH
authors.lastname: Oh
authors.forename: Jeong-Ho
authors.initials: JH
authors.lastname: Park
authors.forename: Byoung-Wook
authors.initials: BW
authors.lastname: Choi
authors.forename: Seung-Won
authors.initials: SW
authors.lastname: Park
authors.forename: Soon-Young
authors.initials: SY
authors.lastname: Paik
mesh_terms: D019380:Anti-HIV Agents / Q000302:isolation & purification / Q000494:pharmacology* / Q000633:toxicity; D002460:Cell Line; D016655:HIV Core Protein p24 / Q000032:analysis; D054303:HIV Reverse Transcriptase; D015497:HIV-1 / Q000187:drug effects*; D006801:Humans; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology* / Q000633:toxicity; D010946:Plants, Medicinal / Q000737:chemistry*; D014779:Virus Replication / Q000187:drug effects
chemical_list: D019380:Anti-HIV Agents; D016655:HIV Core Protein p24; D010936:Plant Extracts; C514824:reverse transcriptase, Human immunodeficiency virus 1; D054303:HIV Reverse Transcriptase