Objective: Polygonaturn verticillatum (L) All. (Ruscaceae), one of the Ashtawarga plants, is widely used for treatment of various ailments. The present study was undertaken to determine the phenolic composition, ...Objective: Polygonaturn verticillatum (L) All. (Ruscaceae), one of the Ashtawarga plants, is widely used for treatment of various ailments. The present study was undertaken to determine the phenolic composition, antioxidant, anti-inflammatory and anticancer activities of several extracts (petroleum ether, dichloro- methane, chloroform, ethanol, and aqueous) from the rhizomes of the plant. Methods: Coarsely powdered dry rhizome was successively extracted with different solvents of increas- ing polarity (petroleum ether, dichloromethane, chloroform, ethanol and water). The phenolic composi- tions, in terms of total phenolic content (TPC), total flavonoid content (TFC) and total condensed tannin content (JTC), were evaluated with the Folin-Ciocalteu assay, aluminum chloride colorimetric assay and vanillin spectrophotometric assay, respectively. Total antioxidant capacity, 1,1-diphenyl-2- picrylhydrazyl and 2,2'-azino-his(3-ethylbenzothiazoline-6-sulfonic acid) assays were used to assess the antioxidant potential of each extract. A protein denaturation model and 3-(4,5-dimethylthiazol-2- yl)-2,5-diphenyltetrazolium bromide assay were used to evaluate in vitro anti-inflammatory and anti- cancer activities, respectively. Gas chromatography-mass spectrometry (GC/MS) analysis was carried out to demonstrate various phytoconstituents in each extract. Correlation studies were also performed between phenolic composition (TPC, TFC and TFC) and different biological activities. Results: Ethanol extract showed maximum TPC (0.126 mg/g, gallic acid equivalent in dry sample), TFC (0.094 mg/g, rutin equivalent in dry sample) and TTC (29.32 mg/g, catechin equivalent in dry sample), as well as antioxidant and anti-inflammatory properties. Chloroform extract exhibited the strongest cyto- toxicity against the human breast cancer cell line, MCF-7. GC/MS analysis revealed the presence of 90 different phytoconstituents among the extracts. Antioxidant and anti-inflammatory activities had a positive correlation with TPC, TFC and TTC. However, the anticancer activity showed a negative correlation with TPC, TFC and TTC. Conclusion: From the present study, it can be concluded that P. verticillaturn possessed remarkable antioxidant, anti-inflammatory, and anticancer activities, which could be due to different secondary metabolites of the plant. Phenolic compounds are likely responsible for antioxidant and antiinflammatory activities. However, flavonoids and other compounds might contribute to the anticancer potential of the plant.展开更多
Polygonatum verticillatum(Linn.)All.syn.Convallaria verticillata Linn.is a valuable medicinal plant,distributed in the temperate Himalaya at the elevations 2400 to 2800 m.It is a perennial rhizomatous herb and contain...Polygonatum verticillatum(Linn.)All.syn.Convallaria verticillata Linn.is a valuable medicinal plant,distributed in the temperate Himalaya at the elevations 2400 to 2800 m.It is a perennial rhizomatous herb and contains various pharmacologically important secondary metabolites among which the most important areα-bulnesene,linalyl acetate,eicosadienoic,pentacosane,piperitone,docasane,diosgenin,santonin and calarene.It also possesses antimalarial,antipyretic,anti-inflammatory,anticonvulsant,lipoxygenase,urease inhibition,diuretic,tracheorelaxant,antidiarrheal,antispasmodic,antinociceptive,antifungal,antibacterial and bronchodilator activities.The plant also got importance in traditional systems of medicine due to its broad therapeutic potential especially of its rhizome.But in the past few years,over exploitation of plant parts caused the decline in the frequency of this species due to which it became threatened,endangered and vulnerable in different parts of the world.So efforts are being made in certain regions of the world for both ex-situ and in-situ conservation.This paper briefly reviewed the botanical,traditional,phytochemical,pharmacological and conservation related aspects of this plant.展开更多
基金The financial support of University Grants Commission,New Delhi,India as Rajiv Gandhi National Fellowship[F1-17.1/2013-14/RGNF-2013-14-SC-UTT-36274/(SA-III/Website)]to SKSUGC-BSR Research Start-Up-Grant to AP[N.F.20-14[3]/2012(BSR)]
文摘Objective: Polygonaturn verticillatum (L) All. (Ruscaceae), one of the Ashtawarga plants, is widely used for treatment of various ailments. The present study was undertaken to determine the phenolic composition, antioxidant, anti-inflammatory and anticancer activities of several extracts (petroleum ether, dichloro- methane, chloroform, ethanol, and aqueous) from the rhizomes of the plant. Methods: Coarsely powdered dry rhizome was successively extracted with different solvents of increas- ing polarity (petroleum ether, dichloromethane, chloroform, ethanol and water). The phenolic composi- tions, in terms of total phenolic content (TPC), total flavonoid content (TFC) and total condensed tannin content (JTC), were evaluated with the Folin-Ciocalteu assay, aluminum chloride colorimetric assay and vanillin spectrophotometric assay, respectively. Total antioxidant capacity, 1,1-diphenyl-2- picrylhydrazyl and 2,2'-azino-his(3-ethylbenzothiazoline-6-sulfonic acid) assays were used to assess the antioxidant potential of each extract. A protein denaturation model and 3-(4,5-dimethylthiazol-2- yl)-2,5-diphenyltetrazolium bromide assay were used to evaluate in vitro anti-inflammatory and anti- cancer activities, respectively. Gas chromatography-mass spectrometry (GC/MS) analysis was carried out to demonstrate various phytoconstituents in each extract. Correlation studies were also performed between phenolic composition (TPC, TFC and TFC) and different biological activities. Results: Ethanol extract showed maximum TPC (0.126 mg/g, gallic acid equivalent in dry sample), TFC (0.094 mg/g, rutin equivalent in dry sample) and TTC (29.32 mg/g, catechin equivalent in dry sample), as well as antioxidant and anti-inflammatory properties. Chloroform extract exhibited the strongest cyto- toxicity against the human breast cancer cell line, MCF-7. GC/MS analysis revealed the presence of 90 different phytoconstituents among the extracts. Antioxidant and anti-inflammatory activities had a positive correlation with TPC, TFC and TTC. However, the anticancer activity showed a negative correlation with TPC, TFC and TTC. Conclusion: From the present study, it can be concluded that P. verticillaturn possessed remarkable antioxidant, anti-inflammatory, and anticancer activities, which could be due to different secondary metabolites of the plant. Phenolic compounds are likely responsible for antioxidant and antiinflammatory activities. However, flavonoids and other compounds might contribute to the anticancer potential of the plant.
文摘Polygonatum verticillatum(Linn.)All.syn.Convallaria verticillata Linn.is a valuable medicinal plant,distributed in the temperate Himalaya at the elevations 2400 to 2800 m.It is a perennial rhizomatous herb and contains various pharmacologically important secondary metabolites among which the most important areα-bulnesene,linalyl acetate,eicosadienoic,pentacosane,piperitone,docasane,diosgenin,santonin and calarene.It also possesses antimalarial,antipyretic,anti-inflammatory,anticonvulsant,lipoxygenase,urease inhibition,diuretic,tracheorelaxant,antidiarrheal,antispasmodic,antinociceptive,antifungal,antibacterial and bronchodilator activities.The plant also got importance in traditional systems of medicine due to its broad therapeutic potential especially of its rhizome.But in the past few years,over exploitation of plant parts caused the decline in the frequency of this species due to which it became threatened,endangered and vulnerable in different parts of the world.So efforts are being made in certain regions of the world for both ex-situ and in-situ conservation.This paper briefly reviewed the botanical,traditional,phytochemical,pharmacological and conservation related aspects of this plant.