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Life Sciences
Studies from University of Illinois reveal new findings on life sciences
December 16th, 2008
"The present study explores the variability of biological responses from the perspective of sample purity and introduces the concept of purity-activity relationships (PARs) in natural product research. The abundant plant triterpene ursolic acid (1) was selected as an exemplary natural product due to the overwhelming number yet inconsistent nature of its approximate 120 reported biological activities, which include anti-TB potential," scientists in the United States report. "Nine different samples of ursolic acid with purity certifications were obtained, and their purity was independently assessed by means of quantitative H-1 NMR (qHNMR). Biological evaluation consisted...
Source: TB & Outbreaks Week (2008-12-16)
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