YANG Yuanyou LIU Ning QIU Mingfeng MO Shangwu WEI Jinxue JIN Jiannan. Studies on functional fractions of fructus trichosanthes cortex by 45Ca isotopic tracer technique[J]. Nuclear techniques, 2002, (5): 345-348.
YANG Yuanyou LIU Ning QIU Mingfeng MO Shangwu WEI Jinxue JIN Jiannan. Studies on functional fractions of fructus trichosanthes cortex by 45Ca isotopic tracer technique[J]. Nuclear techniques, 2002, (5): 345-348.DOI:
The active fractions of fructus trichosanthes cortex with antagonistic effect were studied by 45 Ca isotopic tracer technique- 45 Ca transmembrane influx technique. The fructus trichosanthes cortex was first extracted by 30-100% ethyl alcohol. The calcium antagonism of the extract obtained by 70% ethyl alcohol was found to be the highest. This extract was further extracted by petroleum ether
then isolated on Silica gel columm chromatography with elution of ethyl acetate and 95% ethyl alcohol. It was found that the eluates have five fractions. Among them
the fifth fraction had the strongest Ca 2+ antagonistic effect. In contrast