American Herbal Pharmacopoeia : Botanical Pharmacognosy - by Ray Upton et al. (eds.)

By Ray Upton et al. (eds.)

Winner of the James A. Duke Award for Excellence in Botanical Literature Award from the yankee Botanical CouncilCompiled via the yank natural Pharmacopoeia®, this quantity addresses the shortcoming of authoritative microscopic descriptions of these medicinal plant species at the moment in exchange. It contains an atlas offering designated textual content and photo descriptions of greater than a hundred and forty medicinal plant species and their  Read more...

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Extra resources for American Herbal Pharmacopoeia : Botanical Pharmacognosy - Microscopic Characterization of Botanical Medicines.

Example text

4 Pharmacognosy—A Descriptive Science . . . . . . . 8 Materia Medica . . . . . . . . . . . . . . . . 9 Pharmacognosy—The Child of the Microscope . . . . 11 In Search of the “Magic Bullet” . . . . . . . . . 15 Pharmacognosy—A Shift to “Grind and Find” . . . . 19 Botanical Microscopy—Pharmacy’s Unique Contribution to Science . . . . . . . . . . . . 20 Microscopic Sleuthing . . . . . . . . . . . . . 20 Specificity of Microscopy . . .

2000) and Stermitz, Tawara-Matsuda, et al. (2000) (reported by Kinghorn 2001) found that the antibacterial activity of berberine derived from the traditionally used Native American botanical Berberis fremontii against resistant Staphylococcus aureus was potentiated by the presence of two other constituents contained within the plant: the flavonolignin 5ʹ-methoxyhydnocarpin and the porphyrin pheophorbide a (Figure 5). Although both compounds potentiated the activity of subthreshold concentrations of berberine, neither elicited any antibiotic activity alone (Kinghorn 2001).

The use of natural products in the development of modern medicines has been so prevalent that in 1996 it was estimated that as many as 50% of prescriptions dispensed in the United States contained one or more substances originally derived or modified from natural products (Robbers, Speedie, and Tyler 1996). , penicillin, vincristine alkaloids, taxol, etoposide, which are derived from Staphylococcus aureus, Madagascar periwinkle [Catharanthus roseus], Pacific yew [Taxus brevifolia], and American mayapple [Podophyllum peltatum], respectively).

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