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关注胍类阳离子消毒剂对肺的损害
编辑人员丨5天前
本文概述了胍类消毒剂在我国的使用情况和胍类阳离子消毒剂在韩国使用引发了肺纤维化等严重肺损伤事件。评述了我国学者利用超声雾化技术,模拟人类实际暴露场景染毒,证明了聚六亚甲基胍能引起肺纤维化。这些结果警示需充分重视胍类消毒剂引起的肺损伤问题,探究健康危害的机制,从而为保护公共卫生安全及其相应政策的制定提供重要科学依据。
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编辑人员丨5天前
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Comprehensive chemical profiling and quantitative analysis of eth-nic Yi medicine Miao-Fu-Zhi-Tong granules using UHPLC-MS/MS
编辑人员丨2023/8/5
Developing analytical methods for the chemical components of natural medicines remains a challenge due to its di-versity and complexity.Miao-Fu-Zhi-Tong(MFZT)granules,an ethnic Yi herbal prescription,comprises 10 herbs and has been clinic-ally applied for gouty arthritis(GA)therapy.Herein,a series of chemical profiling strategies including in-house library matching,mo-lecular networking and MS/MS fragmentation behavior validation based on ultra-high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)were developed for qualitative analysis of MFZT granules.A total of 207 compounds were iden-tified or characterized in which several rare guanidines were discovered and profiled into alkyl substituted or cyclic subtypes.Moreover,network pharmacology analysis indicated that MFZT's anti-gout mechanism was mostly associated with the nuclear factor kappa-B(NF-κB)signaling,nucleotide oligomerization domain(NOD)-like signaling and rheumatoid arthritis pathways,along with the synergistic effect of 84 potential active compounds.In addition,a quantitative analytical method was developed to simultaneously determine the 29 potential effective components.Among them,berberine,pellodendrine,3-feruloylquinic acid,neoastilbin,isoacteos-ide and chlorogenic acid derivatives at higher concentrations were considered as the chemical markers for quality control.These find-ings provide a holistic chemical basis for MFZT granules and will support the development of effective analytical methods for the herbal formulas of natural medicines.
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编辑人员丨2023/8/5
