References
- Arnason JT, Philogene BJR, Towers GHN (1992): Phototoxins in plant-insect interactions. In: Herbivores: Their Interac-tions with Secondary Plant Metabolites, Volume II: Evolutionary and Ecological Processes. Academic Press, Inc, pp. 317–341.
- Bauer R, Reminger P (1989): TLC and HPLC analysis of alka-mides in Echinacea drugs. Planta Med 55: 367–371.
- Bauer R, Reminger P, Wagner H (1988): Alkamides from the roots of Echinacea purpurea. Phytochemistry 27: 2339–2342.
- Bergeron C, Livesey JF, Awang DVC, Arnason JT, Rana J, Baum BR, Letchamo W (2000): A quantitative method for identity and quality assurance of Echinacea on the North American market. Phytochem Anal 11: 1–9.
- Binns SE, Baum BR, Amason JT (2002): A taxonomic revision of the genus Echinacea (Heliantheae; Asteraceae). System-atic Bot 27: 610–632.
- Binns SE, Purgina B, Bergeron C, Smith ML, Ball L, Baum BR, Arnason JT (2000): Light-mediated antifungal activity of Echinacea extracts. Planta Med 66: 241–244.
- Bossu E, Agliano AM, Desideri N, Sestili I, Porra R, Grandilone M, Quaglia MG (1999): LTB4 as marker of 5-LO inhibitory activity of two new N-ethoxycarbony1-4-quinolones. J Pharm Biomed Anal 19: 539–548.
- Brevoort P (1998): The booming US. botanical market: A new overview. HerbalGram 44: 33–48.
- Camp RDR, Fincham NJ (1985): Inhibition of ionophore-stimulated leukotriene 134 production in human leucocytes by monohydroxy fatty acids. Br J Pharmacol 85: 837–841.
- Camm EL, Towers GHN, Mitchell JC (1975): UV mediated antibiotic activity of some Compositae species. Phyto-chemistry 14: 2007–2011.
- Foster S (1991): Echinacea: Nature's Immune enhancer. Healing Arts Press, Rochester VT.
- Hadacek F, Greger H (2002): Testing of antifungal natural prod-ucts: methodologies, comparability of results and assay choice. Phytochem Anal 11: 137–147.
- Hart JA (1981): The ethnobotany of the northern Cheyenne Indians of Montana. J Ethnopharmacol 4: 1–55.
- Hobbs C (1989): The Echinacea Handbook. Portland, Oregon: Eclectic Medical Publications (Michael Miovich.)
- Hobbs C (1994): Echinacea — A literature review; botany, history, chemistry, pharmacology, toxicology and clinical uses. Herbalgram (Supplement) 30: 33–47.
- Hudson JB, Graham EA, Lam J, Towers GHN (1991): Ultravi-olet-dependent biological activities of selected polyines from the Asteraceae. Planta Med 57: 69–73.
- Kindscher K (1989): Ethnobotany of purple coneflower (Echi-nacea angustifolia, Asteraceae) and other Echinacea species. Econ Bot 43: 498–507.
- Law D, Moore CB, Denning DW (1997): Amphotericin B resis-tance testing of Candida spp.: A comparison of methods. J Antimicrob Chemother 40: 109–112.
- McGregor RL (1968): The taxonomy of the genus Echinacea (Compositae). Univ. Kansas Sci Bul 48: 113–142.
- McLachlan D, Arnason T, Lam J (1968): Structure-function relationships in the phototoxicity of acetylenes from Asteraceae. Biochem Syst & Ecol 14: 17–23.
- Muller-Jakic B, Breu W, Probstle A, Redl K, Greger H, Bauer R (1994): In vitro inhibition of cyclooxygenase and 5-lipoxygenase by alkamides from Echinacea and Achilla species. Planta Med 60: 37–39.
- Nonprescription Drug Manufacturers Association of Canada (NDMAC). 1999. www.ndmac.ca.
- Perry NB, van Klinck JW, Burgess EJ, Parmenter GA (1997): Alkamide levels in Echincea purpurea. Planta Med 63: 58–62.
- Rininger JA, Kickner S, Chigurupati P, McLean A, Franck Z (2000): Immunopharmacological activity of Echinacea preparations following stimulated digestion on murine macrophages and human peripheral blood mononuclear cells. J Leukoc Biol 68: 503–510.
- Shemluck D (1982): Medicinal and other uses of the Composi-tae by Indians in the United States and Canada. J Ethnopharmacol 5: 303–358.
- Sumner H, Salan U, Knight DW, Hoult JRS (1992): Inhibition of 5-lipoxygenase and cyclooxygenase in leukocytes by feverfew. Involvement of sesquiterpene lactones and other components. Biochem Pharmacol 43: 2313–2320.
- Towers GHN, Page JE, Hudson JB (1997): Light-mediated bio-logical activities of natural products from plants and fungi. Curr Org Chem 1: 395–414.
- Yasuda IK, Takeya K, Itokawa H (1981): Structures of amides from Asiasarum heterotropoides var mandshuricum Maek. Chem Pharm Bull 29: 564–566.
- Yu W, Powell WS (1995): Analysis of leukotrienes, lipoxins, and monooxygenated metabolites of arachadonic acid by reversed-phase high-pressure liquid chromatography. Anal Biochem 226: 241–251.