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Thirteen kinds of anti-anoxic Tibetan traditional medicine including Hongjingtianjiaonang, Anshensan, Wuweishiliusan, Zhangsongbaweichenxiangsan, Shiliuweidujuansan, Ershiwuweiyuganziwan, Ershiwuweizhuhuangjiaonang, Shiwuweilongdanwan, Mijueqingliangsan, Qishiweizhenzhuwan, Bawei-chenxiangsan, Liuweidingxiangsan and Qiweiputansan were digested with HNO3-HClO4 mixed acid. Fourteen trace elements and macro elements in the 13 kinds of anti-anoxic Tibetan traditional medicine, such as silver, aluminium, cadmium, cobalt, chromium, copper, ferrum, hydrargyrum, magnesium, manganese, nickel, lead, stannum and zinc were determined by flame atomic absorption spectrophotometry (FAAS). The results showed that there were comparatively rich trace elements and macro elements in kinds of anti-anoxic Tibetan traditional Medicine. The 13 Anti-anoxic Tibetan traditional medicine contains higher amount of ferrum, magnesium, copper, chromium, zinc and manganese than other elements. This provided useful data for discussing the relationship between trace elements and macro elements and anti-anoxic activities in Tibetan traditional medicine.
During the screening of a traditional Chinese folk herb library against HepG2 and Hep3B cell lines, the EtOAc extract from the Tibetan medicine, Caragana tibetica (CT-EtOAc) exhibited potential anti-hepatocellular carcinoma (anti-HCC) activity. HPLC-based activity profiling was performed for targeted identification of anti-HCC activity from CT-EtOAc by MS-directed purification method. CT-EtOAc was separated by time-based fractionation for further anti-HCC bioassay by a semipreparative HPLC column (150 mm × 10 mm i.d., 5 μm) with a single injection of 5 mg. Bioassay-guided and ESIMS-directed large scale purification was performed with a single injection of 400 mg of CT-EtOAc by peak-based fractionation. A 1.4-mm heavy wall micro NMR tube with z-gradient was used to measure one and two dimensional NMR spectra for the minor or trace amounts of components of the extract. Two active compounds could be elucidated as naringenin chalcone (CT-1) and 3-hydroxy-8, 9-dimethoxypterocarpan (CT-2) relevant to anti-HCC effects for the EtOAc extract of C. tibetica rapidly and unambiguously by this protocol.