Zobrazeno 1 - 10
of 23
pro vyhledávání: '"J. Thor Arnason"'
Autor:
Vance L. Trudeau, J. Thor Arnason, Cathy E Drouin, J.W. Budzinski, Nana Bafi-Yeboa, Brian C. Foster
Publikováno v:
Pharmaceutical Biology. 46:53-65
As the popularity of natural health product (NHP) use increases, unfortunately, so does the frequency of cases reporting suspected adverse interactions. Adverse reactions associated with concomitant NHP-therapeutic use may result from competing inter
Autor:
Cathy E Drouin, J. Thor Arnason, J.W. Budzinski, Brian C. Foster, Mitra PanahiM. Panahi, Vance L. Trudeau
Publikováno v:
Canadian Journal of Physiology and Pharmacology. 85:966-978
In this study, we used an in vitro Caco-2 cell monolayer model to evaluate aqueous extracts of commercial-source goldenseal ( Hydrastis canadensis ) and milk thistle ( Silybum marianum ) capsule formulations, their marker phytochemicals (berberine an
Publikováno v:
Annual Review of Pharmacology and Toxicology. 45:203-226
▪ Abstract Botanicals such as herbal products (HPs) and nutraceuticals (NCs) are often regarded as low risk because of their long history of human use. Anecdotal and literature reports of adverse drug events (ADEs) and clinical studies with HPs are
Autor:
Linda Kang, J. Thor Arnason, John Livesey, Selvarani Vimalanathan, Virginie Treyvaud Amiguet, James B. Hudson
Publikováno v:
Pharmaceutical Biology. 43:740-745
Stems, leaves, and flowers of Echinacea purpurea. (L.) Moench (Heliantheae: Asteraceae) were fractionated by various solvents and the fractions evaluated for antiviral activity in relation to chemical composition and distribution within the plant. Al
Autor:
Linda Kang, James B. Hudson, Virginie Treyvaud Amiguet, J. Thor Arnason, Selvarani Vimalanathan, John Livesey
Publikováno v:
Pharmaceutical Biology. 43:790-796
The roots of three commonly used taxa of Echinacea.—E. purpurea., E. pallida. var. pallida., and E. pallida. var. angustifolia.—were extracted and fractionated by means of accelerated solvent extraction to reflect the most commonly used methods f
Publikováno v:
Journal of Agricultural and Food Chemistry. 51:4549-4553
A survey of the phytochemistry of Panax quinquefolius L. (North American ginseng) collected from wild populations in Ontario, Quebec, Maine, Vermont, and Wisconsin was undertaken. Reverse-phase HPLC was used to determine the natural variation of leve
Publikováno v:
Journal of Ethnopharmacology. 64:109-115
Two extracts of different collections of the traditional medicine una de gato (Uncaria tomentosa) from Peru were characterized by High Pressure Liquid Chromatography as containing approximately 6 mg/g total oxindole content prior to studies with alve
Autor:
J. Kenneth Torrance, J. Thor Arnason, Lenore Fahrig, Bernard R. Baum, John D.H. Lambert, Awegechew Teshome
Publikováno v:
Economic Botany. 53:69-78
Traditional knowledge of grain storage was studied on small farms in Ethiopia. Sixteen of sixty landraces of sorghum collected from small farms in Shewa and Welo regions of Ethiopia were identified by the farmers as being stored sorghum landraces. Fa
Publikováno v:
Canadian Journal of Plant Science. 75:851-856
Recently identified resistance factors in two inbreds of maize (Zea mays L.) were investigated in relation to their concentrations over the course of maize root development. The purpose of this study was to determine the time of peak expression in re
Autor:
Gabriel Guillet, Richard R. Aucoin, J. Thor Arnason, Christine L. Murray, Bernard J. R. Philogène
Publikováno v:
Archives of Insect Biochemistry and Physiology. 29:211-226
Plants of the Asteraceae and Hypericaceae possess secondary compounds that induce photooxidation in insect herbivores that consume them. One of the well-established modes of action of these substances is peroxidation of membrane lipids. Some herbivor