MUBAREKE Wupuer,MA Jun-jie,AZIGULI Alimu,et al.Screening of Anti-inflammatory Active Sites of Water Extract of Iris halophila Root and Analysis of Its Chemical Constituents[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(12):157-167.
MUBAREKE Wupuer,MA Jun-jie,AZIGULI Alimu,et al.Screening of Anti-inflammatory Active Sites of Water Extract of Iris halophila Root and Analysis of Its Chemical Constituents[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(12):157-167. DOI: 10.13422/j.cnki.syfjx.20210812.
Screening of Anti-inflammatory Active Sites of Water Extract of Iris halophila Root and Analysis of Its Chemical Constituents
To investigate the anti-inflammatory effects of water extract of the
Iris halophila
root on lipopolysaccharide(LPS) stimulated RAW264.7 cells and analyze its chemical constituents.
Method
2
The supernatant of YWG prepared by water extraction and alcohol precipitation was separated by AB-8 macroporous adsorption resin column chromatography to obtain ethanol eluates with different concentrations (YWG,YWG-0%,YWG-20%,YWG-40%,and YWG-60%). Cell counting kit-8(CCK-8) assay was used to determine the effects of YWG-0%,YWG-20%,YWG-40%,and YWG-60% on the viability of RAW264.7 cells. Griess assay was employed to detect the nitric oxide (NO) level in LPS-stimulated RAW264.7 cells. The release of tumor necrosis factor(TNF)-
α
,interleukin(IL)-6,IL-10,and IL-1
β
was detected by enzyme-linked immunosorbent assay(ELISA). YWG and the elution site with the most robust anti-inflammatory activity were identified and compared by ultra-high performance liquid chromatography-quadrupole-time of flight-mass spectrometry (UHPLC-Q-TOF-MS/MS).
Result
2
Ethanol eluates with different concentrations inhibited the release of NO,TNF-α,IL-1
β
, and IL-6 in the supernatant of LPS induced RAW264.7 cells (
P<
0.05),and promoted the release of IL-10 (
P<
0.05). YWG-60% displayed a highly significant effect (
P
<
0.01). A total of 127 constituents were detected from the comparison of YWG and YWG-60% by UHPLC-Q-TOF-MS/MS in the positive and negative ion modes,including 61 flavonoids. YWG-60% contained 25 flavonoids with elevated content as compared with YWG.
Conclusion
2
YWG-60% showed potent anti-inflammatory effect,and the effective anti-inflammatory constituents were presumedly flavonoids. The findings of this study are expected to provide a scientific theoretical basis for the basic research on the medicinal effect of the water extract of YWG.
关键词
Keywords
references
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