The ability of water soluble β alanine C 60 adducts for superoxide anion radical scavenging has been studied by spectrophotometry and the modified pyrogallol auto oxidation method. It is found that β alanine C 60 ad...The ability of water soluble β alanine C 60 adducts for superoxide anion radical scavenging has been studied by spectrophotometry and the modified pyrogallol auto oxidation method. It is found that β alanine C 60 adducts have an excellent efficiency in eliminating superoxide radical generated from auto oxidation of pyrogallol. At a mass concentration level of 150 μg/mL for β alanine C 60 adducts, the radical scavenging efficiency is approximately equivalent to one enzyme unit, in vitro experiments show that β alanine C 60 adducts can enhance the activity of mouse thymus cells and prolong their life time span. It reveals the potential use of these β alanine C 60 adducts as the novel potent free radical scavengers in biological systems.展开更多
Dioscin was extracted and isolated from Polygonatum Zanlanscianense Pamp. The effects of dioscin on HL60, HeLa, H14, and MDA MB 435 cell lines were studied with the results showing that dioscin dramatically inhibite...Dioscin was extracted and isolated from Polygonatum Zanlanscianense Pamp. The effects of dioscin on HL60, HeLa, H14, and MDA MB 435 cell lines were studied with the results showing that dioscin dramatically inhibited the growth of the MDA MB 435, H14, HL60, and HeLa cell lines. The IC 50 of dioscin on these cell lines were 2.6, 0.8, 7.5, and 4.5 μmol/L respectively.展开更多
文摘The ability of water soluble β alanine C 60 adducts for superoxide anion radical scavenging has been studied by spectrophotometry and the modified pyrogallol auto oxidation method. It is found that β alanine C 60 adducts have an excellent efficiency in eliminating superoxide radical generated from auto oxidation of pyrogallol. At a mass concentration level of 150 μg/mL for β alanine C 60 adducts, the radical scavenging efficiency is approximately equivalent to one enzyme unit, in vitro experiments show that β alanine C 60 adducts can enhance the activity of mouse thymus cells and prolong their life time span. It reveals the potential use of these β alanine C 60 adducts as the novel potent free radical scavengers in biological systems.
基金partly by the Tsinghua U niversity- HongKong Baptist U niversity Joint Institute for Research ofChinese Medicine the" 985" Fund fromTsinghua U niversity.
文摘Dioscin was extracted and isolated from Polygonatum Zanlanscianense Pamp. The effects of dioscin on HL60, HeLa, H14, and MDA MB 435 cell lines were studied with the results showing that dioscin dramatically inhibited the growth of the MDA MB 435, H14, HL60, and HeLa cell lines. The IC 50 of dioscin on these cell lines were 2.6, 0.8, 7.5, and 4.5 μmol/L respectively.
