title: Phytochemical analysis of Geigeria alata and Francoeuria crispa essential oils.
abstract: Phytochemical analyses of Geigeria alata (Benth. & Hook.) and Francoeuria crispa (Forssk., Cas.) (Asteraceae) essential oils were performed. G. alata oil showed moderate in vitro cytotoxicity (IC50, micrograms/ml against tumor cells; P388: 2.0, A-549: 2.5 and HT-29: 5.0), and also showed weak anti-HIV activity. S-Carvotanacetone, the major component of F. crispa oil (93.0%), was isolated and its structure was elucidated by 2D-NMR analysis.
authors.forename: S A
authors.initials: SA
authors.lastname: Ross
authors.forename: K A
authors.initials: KA
authors.lastname: el Sayed
authors.forename: M A
authors.initials: MA
authors.lastname: el Sohly
authors.forename: M T
authors.initials: MT
authors.lastname: Hamann
authors.forename: O B
authors.initials: OB
authors.lastname: Abdel-Halim
authors.forename: A F
authors.initials: AF
authors.lastname: Ahmed
authors.forename: M M
authors.initials: MM
authors.lastname: Ahmed
mesh_terms: D000818:Animals; D019380:Anti-HIV Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000633:toxicity; D002470:Cell Survival / Q000187:drug effects; D008401:Gas Chromatography-Mass Spectrometry; D006678:HIV / Q000187:drug effects / Q000502:physiology*; D006801:Humans; D007941:Leukemia P388; D051379:Mice; D009822:Oils, Volatile / Q000032:analysis*; D010946:Plants, Medicinal; D010947:Plants, Toxic; D014407:Tumor Cells, Cultured; D014779:Virus Replication / Q000187:drug effects
chemical_list: D019380:Anti-HIV Agents; D000972:Antineoplastic Agents, Phytogenic; D009822:Oils, Volatile