OBJECTIVE To explore the biomarkers and molecular mechanism of Huanglianjiedu decoction(HJD) on high fat diet-induced experimental atherosclerosis in rats.METHODS SD male rats were randomly dividedinto five groups(n=8...OBJECTIVE To explore the biomarkers and molecular mechanism of Huanglianjiedu decoction(HJD) on high fat diet-induced experimental atherosclerosis in rats.METHODS SD male rats were randomly dividedinto five groups(n=8):normal control group,model group,and three dosage groups(1.5,3 and 6 g crude drug per kilogram of body weight).Atherosclerosis was induced by the combination of regular intraperitoneal injection of vitamin D3 and high fat diet for 8 weeks.HJD was administered by oral gavage from the third week once per day and until the end of the study.After the final administration,the blood samples were collected for biochemical analyses [total cholesterol(TC),triglycerides(TG),highdensity lipoprotein(HDL-C),low-density cholesterol(LDL-C)] and blood gas analyses(PaO_2,PaCO_2,pH,ctHb,etc);the abdominal aorta sections were stained with hematoxylin and eosin for histopathology;the liver homogenate were determined for MDA,SOD,OX-LDL,MCP-1 and VCAM-1.The plasma samples were detected using ultraper formance liquid chromatography coupled with quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS).The data of endogenous compounds were preliminarily preprocessed by software Progenesis QI and then analyzed by multivari.ate statistical analysis software EZinfo 2.0 to screen the distinguished biomarkers and the metabolic pathways were analyzed through website http://www.metaboanalyst.ca/.RESULTS Compared with the normal control group,the content of TC,TG,LDL-C,PaCO_2,MDA,Ox-LDL,MCP-1 and VCAM-1 were significantly increased and HDL-C,PaO_2,ctHb and SOD decreased in the atherosclerosis rats.HJD could significantly attenuated the high fat-induced atherosclerosis pathological injury and the abovementioned indexes(P<0.05).The five groups could be clearly distinguished using the metabolomics method.The administration groups profile exhibited an apparent returning trend from that of the model group and that of the normal control group.Twenty-one endogenous metabolites has been significantly changed in atherosclerosis rats.HJD could remarkably up-regulate 5-L-glutamyl-taurine,L-beta-aspartylL-glutamic acid,histidinyl-hydroxyproline,tryptophyl-alanine,4′-O-methyl-(-)-epicatechin,and downregulate protoporphyrin IX,azelaic acid,lacto-N-triaose,cinnamoylglycine and 9′-carboxy-alpha-tocotri.enol.CONCLUSION The beneficial effect of HJD in high fat-induced atherosclerosis rats may be due to anti-oxidant and anti-inflammatory.And it is suggested that HJD may affect the model rats through tryptophan metabolism,taurine and hypotaurine metabolism,histidine metabolism,lysine degradation and porphyrin and chlorophyll metabolism pathway.展开更多
采用液液萃取(liquid-liquid extraction,LLE)和顶空固相微萃取(headspace solid-phase microextraction,HS-SPME)结合全二维气相色谱-飞行时间质谱(comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometr...采用液液萃取(liquid-liquid extraction,LLE)和顶空固相微萃取(headspace solid-phase microextraction,HS-SPME)结合全二维气相色谱-飞行时间质谱(comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry,GC×GC-TOFMS)技术解析了天龙泉米香型白酒挥发性组分特征。采用该技术并结合多种检索比对方式在天龙泉米香型白酒中鉴定出挥发性化合物505种,其中339种为天龙泉米香型白酒的潜在香气活性组分,包括86种酯类、50种芳香族、42种醇类、40种醛类、32种含氧杂环化合物、30种酮类、25种萜烯类、19种有机酸类、11种含硫化合物和4种含氮杂环化合物,表明了米香型白酒中香气成分的多样性和复杂性。在挥发性香气化合物含量角度上,不同贮存期的米香型白酒样品呈现明显差异,在时间维度上具有一定规律。其中,变化较大的化合物是醇类化合物、酯类化合物和醛类化合物,可能是受到了企业生产工艺的调整和陈化过程中发生的化学反应共同影响。该研究更深入地认识了米香型白酒的挥发性风味物质,丰富了米香型白酒风味化学的研究体系。展开更多
基金supported by National Natural Science Foundation of China(8170382381560744) Science and Technology Research Project of Jiangxi Provincial Education Department(GJJ170753)
文摘OBJECTIVE To explore the biomarkers and molecular mechanism of Huanglianjiedu decoction(HJD) on high fat diet-induced experimental atherosclerosis in rats.METHODS SD male rats were randomly dividedinto five groups(n=8):normal control group,model group,and three dosage groups(1.5,3 and 6 g crude drug per kilogram of body weight).Atherosclerosis was induced by the combination of regular intraperitoneal injection of vitamin D3 and high fat diet for 8 weeks.HJD was administered by oral gavage from the third week once per day and until the end of the study.After the final administration,the blood samples were collected for biochemical analyses [total cholesterol(TC),triglycerides(TG),highdensity lipoprotein(HDL-C),low-density cholesterol(LDL-C)] and blood gas analyses(PaO_2,PaCO_2,pH,ctHb,etc);the abdominal aorta sections were stained with hematoxylin and eosin for histopathology;the liver homogenate were determined for MDA,SOD,OX-LDL,MCP-1 and VCAM-1.The plasma samples were detected using ultraper formance liquid chromatography coupled with quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS).The data of endogenous compounds were preliminarily preprocessed by software Progenesis QI and then analyzed by multivari.ate statistical analysis software EZinfo 2.0 to screen the distinguished biomarkers and the metabolic pathways were analyzed through website http://www.metaboanalyst.ca/.RESULTS Compared with the normal control group,the content of TC,TG,LDL-C,PaCO_2,MDA,Ox-LDL,MCP-1 and VCAM-1 were significantly increased and HDL-C,PaO_2,ctHb and SOD decreased in the atherosclerosis rats.HJD could significantly attenuated the high fat-induced atherosclerosis pathological injury and the abovementioned indexes(P<0.05).The five groups could be clearly distinguished using the metabolomics method.The administration groups profile exhibited an apparent returning trend from that of the model group and that of the normal control group.Twenty-one endogenous metabolites has been significantly changed in atherosclerosis rats.HJD could remarkably up-regulate 5-L-glutamyl-taurine,L-beta-aspartylL-glutamic acid,histidinyl-hydroxyproline,tryptophyl-alanine,4′-O-methyl-(-)-epicatechin,and downregulate protoporphyrin IX,azelaic acid,lacto-N-triaose,cinnamoylglycine and 9′-carboxy-alpha-tocotri.enol.CONCLUSION The beneficial effect of HJD in high fat-induced atherosclerosis rats may be due to anti-oxidant and anti-inflammatory.And it is suggested that HJD may affect the model rats through tryptophan metabolism,taurine and hypotaurine metabolism,histidine metabolism,lysine degradation and porphyrin and chlorophyll metabolism pathway.
文摘采用液液萃取(liquid-liquid extraction,LLE)和顶空固相微萃取(headspace solid-phase microextraction,HS-SPME)结合全二维气相色谱-飞行时间质谱(comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry,GC×GC-TOFMS)技术解析了天龙泉米香型白酒挥发性组分特征。采用该技术并结合多种检索比对方式在天龙泉米香型白酒中鉴定出挥发性化合物505种,其中339种为天龙泉米香型白酒的潜在香气活性组分,包括86种酯类、50种芳香族、42种醇类、40种醛类、32种含氧杂环化合物、30种酮类、25种萜烯类、19种有机酸类、11种含硫化合物和4种含氮杂环化合物,表明了米香型白酒中香气成分的多样性和复杂性。在挥发性香气化合物含量角度上,不同贮存期的米香型白酒样品呈现明显差异,在时间维度上具有一定规律。其中,变化较大的化合物是醇类化合物、酯类化合物和醛类化合物,可能是受到了企业生产工艺的调整和陈化过程中发生的化学反应共同影响。该研究更深入地认识了米香型白酒的挥发性风味物质,丰富了米香型白酒风味化学的研究体系。
