AIM:To analyze the possible protective role of Arctium lappa L.(AL)in a murine model of ulcerative colitis(UC).METHODS:BALB/c mice were administered 100 mg/kg AL powder orally each day.After 7 d,colitis was induced by...AIM:To analyze the possible protective role of Arctium lappa L.(AL)in a murine model of ulcerative colitis(UC).METHODS:BALB/c mice were administered 100 mg/kg AL powder orally each day.After 7 d,colitis was induced by administration of dextran sulfate sodium(DSS)(5% W/V)in drinking water for a further 8 consecutive days.Diarrhea and bloody stools as well as colonic histology were observed.The level of interleukin-6(IL-6)and tu-mor necrosis factor-α(TNF-α)in colonic sections were detected by immunohistochemistry.RESULTS:There were significant differences in mean body weight values and disease activity indices between controls and AL-treated animals.Moreover,the histological findings showed that AL treatment can prevent mucosal edema,submucosal erosions,ulceration,inflammatory cell infiltration and colon damage.In addition,immunohistochemistry analysis showed that the levels of the inflammatory cytokines,IL-6 and TNF-α were also decreased in AL-treated groups.CONCLUSION:We suggest that AL can prevent intestinal damage and decrease inflammatory cytokines in mice with DSS-induced colitis.Thus,AL could prove to be a useful food for UC.展开更多
[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on ...[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on green pigment, and Al^(3+), Cu^(2+), Mg^(2+) and Zn^(2+) in metal ions greatly affected green pigment, while Fe^(3+) had very little impact on the stability of green pigment. pH did not basically affect green pigment of A. lappa L. [Conclusions] The extraction rate and stability of green pigment from leaves of A. lappa L. were higher, and it was one of materials suitable for extracting green pigment.展开更多
[Objectives] To determine the content of 20 inorganic elements in 18 samples of roots, stems and leaves from of Arctium lappa L. produced in different areas. [Methods] The wet digestion and technique of inductively co...[Objectives] To determine the content of 20 inorganic elements in 18 samples of roots, stems and leaves from of Arctium lappa L. produced in different areas. [Methods] The wet digestion and technique of inductively coupled plasma emission spectrometry(ICP-OES) were used. [Results] 20 kinds of inorganic elements in the samples of A. lappa L. roots contained rich elements essential for human beings such as K, Ca, Na, P and trace elements Cu, Fe, Zn; heavy metals Pb, As, Cu, Cd in A. lappa L. samples did not exceed the limit, and Hg was not detected in all 12 samples; heavy metals in A. lappa L. roots harvested in 12 months did not exceed the limit. [Conclusions] Compared with the roots of A. lappa L., the inorganic elements in the stems and leaves of A. lappa L. were relatively less. The samples collected from Shuimo Town in Wenchuan County of Aba Prefecture with an altitude of 920 m showed little difference from samples collected from Qiongxi Town in Hongyuan County of Aba Prefecture with an altitude of 3 505 m in 20 kinds of inorganic elements.展开更多
Seed oil of \%Arctium lappa \%L. was extracted with hexane. After saponification and formation, the fatty acid components ofthisoilwasdeterminedbyCapillaryGC\|MS.14compounds were identifiedfrom thisoil and itsindex of...Seed oil of \%Arctium lappa \%L. was extracted with hexane. After saponification and formation, the fatty acid components ofthisoilwasdeterminedbyCapillaryGC\|MS.14compounds were identifiedfrom thisoil and itsindex of unsaturation is 56.84%. Octadecanoic acid and oleic acid are chief components, and their relative contents are 50.21% and 32.56% respectively.展开更多
基金Supported by Grants to Kuo Pin Chuang from the National Science Council(NSC),No.NSC-98-2313-B-020-009and Council of Agriculture,No.98-9.2.1-B1(5)
文摘AIM:To analyze the possible protective role of Arctium lappa L.(AL)in a murine model of ulcerative colitis(UC).METHODS:BALB/c mice were administered 100 mg/kg AL powder orally each day.After 7 d,colitis was induced by administration of dextran sulfate sodium(DSS)(5% W/V)in drinking water for a further 8 consecutive days.Diarrhea and bloody stools as well as colonic histology were observed.The level of interleukin-6(IL-6)and tu-mor necrosis factor-α(TNF-α)in colonic sections were detected by immunohistochemistry.RESULTS:There were significant differences in mean body weight values and disease activity indices between controls and AL-treated animals.Moreover,the histological findings showed that AL treatment can prevent mucosal edema,submucosal erosions,ulceration,inflammatory cell infiltration and colon damage.In addition,immunohistochemistry analysis showed that the levels of the inflammatory cytokines,IL-6 and TNF-α were also decreased in AL-treated groups.CONCLUSION:We suggest that AL can prevent intestinal damage and decrease inflammatory cytokines in mice with DSS-induced colitis.Thus,AL could prove to be a useful food for UC.
基金Supported by the National Key Research and Development Program of China during the 13th Five-Year Plan Period(2018ZX09301060)Science and Technology Plan Project of Sichuan Province(2016NZYZF0007)the Fourth National Survey of Traditional Chinese Medicine Resources Program(2017)
文摘[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on green pigment, and Al^(3+), Cu^(2+), Mg^(2+) and Zn^(2+) in metal ions greatly affected green pigment, while Fe^(3+) had very little impact on the stability of green pigment. pH did not basically affect green pigment of A. lappa L. [Conclusions] The extraction rate and stability of green pigment from leaves of A. lappa L. were higher, and it was one of materials suitable for extracting green pigment.
基金Supported by The National Key Research and Development Program of China(2018YFC1708005)Science and Technology Planning Project of Sichuan Province(2016NZYZF0007)+1 种基金Fourth National Survey of Traditional Chinese Medicine Resources Program(2017)Innovating Research Program of Postgraduates of Southwest University for Nationalities in 2019(CX2019SZ175)
文摘[Objectives] To determine the content of 20 inorganic elements in 18 samples of roots, stems and leaves from of Arctium lappa L. produced in different areas. [Methods] The wet digestion and technique of inductively coupled plasma emission spectrometry(ICP-OES) were used. [Results] 20 kinds of inorganic elements in the samples of A. lappa L. roots contained rich elements essential for human beings such as K, Ca, Na, P and trace elements Cu, Fe, Zn; heavy metals Pb, As, Cu, Cd in A. lappa L. samples did not exceed the limit, and Hg was not detected in all 12 samples; heavy metals in A. lappa L. roots harvested in 12 months did not exceed the limit. [Conclusions] Compared with the roots of A. lappa L., the inorganic elements in the stems and leaves of A. lappa L. were relatively less. The samples collected from Shuimo Town in Wenchuan County of Aba Prefecture with an altitude of 920 m showed little difference from samples collected from Qiongxi Town in Hongyuan County of Aba Prefecture with an altitude of 3 505 m in 20 kinds of inorganic elements.
文摘建立了分离鉴定牛蒡叶中微量木脂体牛蒡子甙(arctiin)和牛蒡子甙元(arctigenin)的方法。牛蒡叶粗提物经聚酰胺柱提取,浓缩其甲醇洗脱液并于低温下静置析出白色沉淀物。沉淀物用甲醇溶解后经反相高效液相色谱(RP HPLC)分离,纯化得到两个主要组分。经紫外光谱(UV)、红外光谱(FTIR)及电喷雾质谱(ESI MS)检测,并与牛蒡子甙和牛蒡子甙元对照品的UV,LC ESI MS,HPLC及FTIR图谱比较,鉴定两个主要成分为牛蒡子甙和牛蒡子甙元。
文摘Seed oil of \%Arctium lappa \%L. was extracted with hexane. After saponification and formation, the fatty acid components ofthisoilwasdeterminedbyCapillaryGC\|MS.14compounds were identifiedfrom thisoil and itsindex of unsaturation is 56.84%. Octadecanoic acid and oleic acid are chief components, and their relative contents are 50.21% and 32.56% respectively.
