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Evaluation of metal and microbial contamination in botanical supplements.
Raman P, Patino LC, Nair MG. Raman P, et al. J Agric Food Chem. 2004 Dec 29;52(26):7822-7. doi: 10.1021/jf049150+. J Agric Food Chem. 2004. PMID: 15612762
John's wort supplements manufactured by Nature's Way, Meijer, GNC, Nutrilite, Solaray, Sundown and Natrol, have been analyzed for lead, mercury, cadmium, arsenic, uranium, chromium, vanadium, copper, zinc, molybdenum, palladium, tin, antimony, thallium, and tungsten using …
John's wort supplements manufactured by Nature's Way, Meijer, GNC, Nutrilite, Solaray, Sundown and Natrol, have been analyzed for lea …
Variable inhibitory effect of different brands of commercial herbal supplements on human cytochrome P-450 CYP3A4.
Wanwimolruk S, Wong K, Wanwimolruk P. Wanwimolruk S, et al. Drug Metabol Drug Interact. 2009;24(1):17-35. doi: 10.1515/dmdi.2009.24.1.17. Drug Metabol Drug Interact. 2009. PMID: 19353999
Among the supplements tested, GTE produced the most pronounced inhibition of CYP3A4, which ranged from 5.6% by Nature's Resource to 89.9% by Natrol GTE product. Nine ginseng products studied had little to no effect on the activity of CYP3A4. ...
Among the supplements tested, GTE produced the most pronounced inhibition of CYP3A4, which ranged from 5.6% by Nature's Resource to 89.9% by …
Lipid peroxidation and cyclooxygenase enzyme inhibitory activities of acidic aqueous extracts of some dietary supplements.
Raman P, Dewitt DL, Nair MG. Raman P, et al. Phytother Res. 2008 Feb;22(2):204-12. doi: 10.1002/ptr.2287. Phytother Res. 2008. PMID: 17726737
Interestingly, extracts of garlic (Meijer), ginkgo (Solaray), ginseng (Nature's Way), Siberian ginseng (GNC, Nutrilite, Solaray, Natrol), kava kava (GNC, Sundown, Solaray) and St John's wort (Nutrilite) selectively inhibited COX-2 enzyme. ...
Interestingly, extracts of garlic (Meijer), ginkgo (Solaray), ginseng (Nature's Way), Siberian ginseng (GNC, Nutrilite, Solaray, Natrol …