In responding to global climate change,the idea of low-carbon economy emerges as the times require.Developing low-carbon economy is based on the construction of low-carbon society.The so called "two-orientation s...In responding to global climate change,the idea of low-carbon economy emerges as the times require.Developing low-carbon economy is based on the construction of low-carbon society.The so called "two-orientation society"(resources conservation orientated society and environmental friendly orientated society) is the concrete representation of low-carbon society with Chinese characteristics,and an actual action for China in developing low-carbon economy.Based on urban agglomeration,the paper discusses the meaning of and the route to low-carbon society which would better reflect the intrinsic requirements of such a society.展开更多
Objective:To isolate the phytoconstituents from the methanolic extracts of the stem bark of Pongamia glabra and Ficus glomerata,characterize spectroscopically and screen for in vitro immunomodulatory activity on human...Objective:To isolate the phytoconstituents from the methanolic extracts of the stem bark of Pongamia glabra and Ficus glomerata,characterize spectroscopically and screen for in vitro immunomodulatory activity on human neurophils.Methods:A flavonoid(PGF)and an alkaloidal compound(PGA)from the extract of P.glabra and a steroidal compound(FGS)and tannin fraction(FGT)from the extract of F.glomerata were isolated using column chromatography technique and were subjected for the spectroscopic(FT-IR,1HNMR and LC-MS)and TLC studies to identify the compounds.The isolated compounds were screened for in vitro immunomodulatory activity on human neutrophils using nitroblue tetrazolium(NBT)dye test,phagocytosis of Candida albicans and neutrophil locomotion and chemotaxis assay at the concentration range of 100,50,25,12.50 and 5.00μg/mL.Results:From the spectroscopic and TLC studies data,the isolated compounds were identified as glabrin(PGA),karanjin(PGF),β-sitosterol(FGS),and tannin fraction(FGT).The isolated compounds PGA,PGF,FGS,and FGT exhibited significant(P<0.05)in vitro immunomodulatory activity in all the parameters studied.Conclusion:The steroidal compound,i.e.FGS was found to be more immunopotent than all constituents alkaloid,flavonoid and tannins.Hence,these constituents could be attributed to the immunomodulatory property of the plants.展开更多
文摘In responding to global climate change,the idea of low-carbon economy emerges as the times require.Developing low-carbon economy is based on the construction of low-carbon society.The so called "two-orientation society"(resources conservation orientated society and environmental friendly orientated society) is the concrete representation of low-carbon society with Chinese characteristics,and an actual action for China in developing low-carbon economy.Based on urban agglomeration,the paper discusses the meaning of and the route to low-carbon society which would better reflect the intrinsic requirements of such a society.
文摘Objective:To isolate the phytoconstituents from the methanolic extracts of the stem bark of Pongamia glabra and Ficus glomerata,characterize spectroscopically and screen for in vitro immunomodulatory activity on human neurophils.Methods:A flavonoid(PGF)and an alkaloidal compound(PGA)from the extract of P.glabra and a steroidal compound(FGS)and tannin fraction(FGT)from the extract of F.glomerata were isolated using column chromatography technique and were subjected for the spectroscopic(FT-IR,1HNMR and LC-MS)and TLC studies to identify the compounds.The isolated compounds were screened for in vitro immunomodulatory activity on human neutrophils using nitroblue tetrazolium(NBT)dye test,phagocytosis of Candida albicans and neutrophil locomotion and chemotaxis assay at the concentration range of 100,50,25,12.50 and 5.00μg/mL.Results:From the spectroscopic and TLC studies data,the isolated compounds were identified as glabrin(PGA),karanjin(PGF),β-sitosterol(FGS),and tannin fraction(FGT).The isolated compounds PGA,PGF,FGS,and FGT exhibited significant(P<0.05)in vitro immunomodulatory activity in all the parameters studied.Conclusion:The steroidal compound,i.e.FGS was found to be more immunopotent than all constituents alkaloid,flavonoid and tannins.Hence,these constituents could be attributed to the immunomodulatory property of the plants.
