In the face of increasingly serious environmental pollution,the health of human lung tissues is also facing serious threats.Mogroside IIE(M2E)is the main metabolite of sweetening agents mogrosides from the anti-tussiv...In the face of increasingly serious environmental pollution,the health of human lung tissues is also facing serious threats.Mogroside IIE(M2E)is the main metabolite of sweetening agents mogrosides from the anti-tussive Chinese herbal Siraitia grosvenori.The study elucidated the anti-inflammatory action and molecular mechanism of M2E against acute lung injury(ALI).A lipopolysaccharide(LPS)-induced ALI model was established in mice and MH-S cells were employed to explore the protective mechanism of M2E through the western blotting,co-immunoprecipitation,and quantitative real time-PCR analysis.The results indicated that M2E alleviated LPS-induced lung injury through restraining the activation of secreted phospholipase A2 type IIA(Pla2g2a)-epidermal growth factor receptor(EGFR).The interaction of Pla2g2a and EGFR was identified by co-immunoprecipitation.In addition,M2E protected ALI induced with LPS against inflammatory and damage which were significantly dependent upon the downregulation of AKT and m TOR via the inhibition of Pla2g2a-EGFR.Pla2g2a may represent a potential target for M2E in the improvement of LPS-induced lung injury,which may represent a promising strategy to treat ALI.展开更多
目的探讨血清脂蛋白相关磷脂酶A2(Lp-PLA2)和同型半胱氨酸(HCY)水平检测与冠心病(CHP)患者冠状动脉病变程度的关系。方法选取2017年1月～2018年5月延安大学附属医院经冠状动脉造影确诊的冠心病患者266例为实验组,其中男性161例,平均年龄...目的探讨血清脂蛋白相关磷脂酶A2(Lp-PLA2)和同型半胱氨酸(HCY)水平检测与冠心病(CHP)患者冠状动脉病变程度的关系。方法选取2017年1月～2018年5月延安大学附属医院经冠状动脉造影确诊的冠心病患者266例为实验组,其中男性161例,平均年龄57.3±8.5岁,女性105例,平均年龄61.1±11.6岁,选取同期该院冠状动脉造影阴性的体检者180例为对照组,其中男性97例,平均年龄54.6±10.5岁,女性83例,平均年龄47.5±6.3岁,记录两组性别、年龄、糖尿病史、卒中病史、心肌梗死病史、吸烟史和饮酒史,使用贝克曼AU2700全自动生化分析仪测定两组HCY,Lp-PLA2,空腹血糖(FBG)、三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDLC)和脂蛋白(a)[Lp(a)]水平,分析两组各项指标的差异。秩和检验比较Gensini积分组[低积分组(Gensini积分<14分,n=128),中积分组(Gensini积分14～28分,n=83),高积分组(Gensini积分>28分,n=55)共3组]Lp(a),HCY水平之间的差异,秩和检验比较冠状动脉不同支数病变组[1支病变组(n=87)、2支病变组(n=91)、3支及3支以上病变组(n=88)共3组]Lp(a),HCY水平之间的差异。采用Pearson法分析Gensini积分与Lp-PLA2,HCY水平之间的相关性及LpPLA2与HCY水平之间的相关性。结果实验组与对照组吸烟史、饮酒史及HCY,Lp-PLA2,Lp(a)水平为:59.77%vs38.9%,86.84%vs 76.67%,53.7±21.8μmol/L vs 6.5±4.1μmol/L,366.1±114.3μg/L vs 115.4±48.4μg/L,569±283mg/L vs 107±75.8mg/L,差异均有统计学意义(t或χ~2=7.78～18.75,均P<0.05)。Gensini低积分组、中积分组、高积分组HCY和Lp-PLA2水平为:39.6±20.2μmol/L,50.7±26.4μmol/L,68.5±31.8μmol/L和245.4±88.3μg/L,326.1±104.3μg/L,459.4±113.5μg/L,差异均有统计学意义(Z=5.81,15.25,均P<0.05)。冠状动脉1支病变组、2支病变组、3支及3支以上病变组HCY和Lp-PLA2水平为:48.6±27.2μmol/L,47.8±23μmol/L,74.1±38.6μmol/L和201.4±73.5μg/L,344.1±134.2μg/L,530.6±255.3μg/L,差异均有统计学意义(Z=5.63,17.91,均P<0.05),随Gensini积分的增加和冠状动脉病变支数的增多,HCY和Lp-PLA2水平升高,差异有统计学意义(t=5.43～16.57,均P<0.05),相关性分析显示Gensini积分与Lp-PLA2,HCY水平呈正相关(r=0.454,0.991,均P<0.05)。Lp-PLA2与HCY水平呈正相关(r=0.336,P<0.05)。结论冠心病患者Lp-PLA2,HCY水平与冠状动脉病变程度呈正相关。展开更多
基金the National Natural Science Foundation(81773982,82003937)Youth Academic leaders of the Qinglan Project in Jiangsu province for financial support。
文摘In the face of increasingly serious environmental pollution,the health of human lung tissues is also facing serious threats.Mogroside IIE(M2E)is the main metabolite of sweetening agents mogrosides from the anti-tussive Chinese herbal Siraitia grosvenori.The study elucidated the anti-inflammatory action and molecular mechanism of M2E against acute lung injury(ALI).A lipopolysaccharide(LPS)-induced ALI model was established in mice and MH-S cells were employed to explore the protective mechanism of M2E through the western blotting,co-immunoprecipitation,and quantitative real time-PCR analysis.The results indicated that M2E alleviated LPS-induced lung injury through restraining the activation of secreted phospholipase A2 type IIA(Pla2g2a)-epidermal growth factor receptor(EGFR).The interaction of Pla2g2a and EGFR was identified by co-immunoprecipitation.In addition,M2E protected ALI induced with LPS against inflammatory and damage which were significantly dependent upon the downregulation of AKT and m TOR via the inhibition of Pla2g2a-EGFR.Pla2g2a may represent a potential target for M2E in the improvement of LPS-induced lung injury,which may represent a promising strategy to treat ALI.
文摘目的探讨血清脂蛋白相关磷脂酶A2(Lp-PLA2)和同型半胱氨酸(HCY)水平检测与冠心病(CHP)患者冠状动脉病变程度的关系。方法选取2017年1月～2018年5月延安大学附属医院经冠状动脉造影确诊的冠心病患者266例为实验组,其中男性161例,平均年龄57.3±8.5岁,女性105例,平均年龄61.1±11.6岁,选取同期该院冠状动脉造影阴性的体检者180例为对照组,其中男性97例,平均年龄54.6±10.5岁,女性83例,平均年龄47.5±6.3岁,记录两组性别、年龄、糖尿病史、卒中病史、心肌梗死病史、吸烟史和饮酒史,使用贝克曼AU2700全自动生化分析仪测定两组HCY,Lp-PLA2,空腹血糖(FBG)、三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDLC)和脂蛋白(a)[Lp(a)]水平,分析两组各项指标的差异。秩和检验比较Gensini积分组[低积分组(Gensini积分<14分,n=128),中积分组(Gensini积分14～28分,n=83),高积分组(Gensini积分>28分,n=55)共3组]Lp(a),HCY水平之间的差异,秩和检验比较冠状动脉不同支数病变组[1支病变组(n=87)、2支病变组(n=91)、3支及3支以上病变组(n=88)共3组]Lp(a),HCY水平之间的差异。采用Pearson法分析Gensini积分与Lp-PLA2,HCY水平之间的相关性及LpPLA2与HCY水平之间的相关性。结果实验组与对照组吸烟史、饮酒史及HCY,Lp-PLA2,Lp(a)水平为:59.77%vs38.9%,86.84%vs 76.67%,53.7±21.8μmol/L vs 6.5±4.1μmol/L,366.1±114.3μg/L vs 115.4±48.4μg/L,569±283mg/L vs 107±75.8mg/L,差异均有统计学意义(t或χ~2=7.78～18.75,均P<0.05)。Gensini低积分组、中积分组、高积分组HCY和Lp-PLA2水平为:39.6±20.2μmol/L,50.7±26.4μmol/L,68.5±31.8μmol/L和245.4±88.3μg/L,326.1±104.3μg/L,459.4±113.5μg/L,差异均有统计学意义(Z=5.81,15.25,均P<0.05)。冠状动脉1支病变组、2支病变组、3支及3支以上病变组HCY和Lp-PLA2水平为:48.6±27.2μmol/L,47.8±23μmol/L,74.1±38.6μmol/L和201.4±73.5μg/L,344.1±134.2μg/L,530.6±255.3μg/L,差异均有统计学意义(Z=5.63,17.91,均P<0.05),随Gensini积分的增加和冠状动脉病变支数的增多,HCY和Lp-PLA2水平升高,差异有统计学意义(t=5.43～16.57,均P<0.05),相关性分析显示Gensini积分与Lp-PLA2,HCY水平呈正相关(r=0.454,0.991,均P<0.05)。Lp-PLA2与HCY水平呈正相关(r=0.336,P<0.05)。结论冠心病患者Lp-PLA2,HCY水平与冠状动脉病变程度呈正相关。
