OBJECTIVE To explore the hypolipidemic mechanisms of the total phenylpropanoid glycosides fromLigustrum robustum(Roxb.) Blume(LRTPG) in hamsters using proteomics technique.METHODS The hamsters were fed with a high fat...OBJECTIVE To explore the hypolipidemic mechanisms of the total phenylpropanoid glycosides fromLigustrum robustum(Roxb.) Blume(LRTPG) in hamsters using proteomics technique.METHODS The hamsters were fed with a high fat diet to induce hyperlipidemia.Then LRTPG of high(1.2 g·kg^(-1)),medium(0.6 g·kg^(-1)) and low(0.3 g·kg^(-1)) doses were administrated daily for 4 weeks.Then the concentrations of plasma and hepatic lipids were determined using enzymic methods.The total protein was extracted from livers of the model group and the group treated with the high dose of LRTPG for label-free quantitative proteomics.RESULTS LRTPG significantly reduced the concentrations of plasma and hepatic lipids in hamsters fed a high fat diet.The proteomics data showed that a total of 2231 proteins were identified,and 549 proteins were found to be differentially expressed between the model group and the group treated with LRTPG.Among the 549 proteins,93 proteins were up-regulated and 59 proteins were down-regulated,and 397 proteins were absent or not.And some of these proteins were much related to the lipid metabolism.Further,gene ontology(GO) analysis indicated metabolic process,transport,oxidation-reduction process,phosphorylation,signal transduction,lipid metabolic process were the main biological processes that those differentially expressed proteins participated.KEGG pathway analysis showed that those proteins were involved in several metabolic pathways including oxidative phosphorylation,non-alcoholic fatty liver disease(NAFLD),PI3K-Akt signaling pathway,cAMP signaling pathway,cGMP-PKG signaling pathway.CONCLUSION The proteomics study could provide valuable clues to help us to understand the hypolipidemic mechanisms of LRTPG much better.展开更多
The volatile oils of the three kinds of kudingcha 〔young shoots from Ligustrum henryi Hemsl., young shoots and mature leaves from L. robustrum (Roxb.) Bl.〕 were extracted with simultaneous steam distillation extract...The volatile oils of the three kinds of kudingcha 〔young shoots from Ligustrum henryi Hemsl., young shoots and mature leaves from L. robustrum (Roxb.) Bl.〕 were extracted with simultaneous steam distillation extract(SDE) and analyzed and identified by GC-MS. 82 constituents had been identified out of the volatile oils. The major constituents were linalool, alloaromadendrene, gerenial, cedrol, 2-(1,1-dimethylethyl)-phenol, 3,7-dimethyl-1,6-octadien-3-ol, (+)-α-terpineol, γ-elemene, citral and phytol, etc.展开更多
目的:研究粗壮女贞乙醇提取物的化学成分。方法:采用硅胶、大孔树脂、凝胶、MCI GEL CHP 20P等柱色谱法和半制备液相色谱等技术对粗壮女贞乙醇提取物的成分进行分离纯化,通过其理化性质和NMR、MS等谱学技术进行结构鉴定。结果:从粗壮女...目的:研究粗壮女贞乙醇提取物的化学成分。方法:采用硅胶、大孔树脂、凝胶、MCI GEL CHP 20P等柱色谱法和半制备液相色谱等技术对粗壮女贞乙醇提取物的成分进行分离纯化,通过其理化性质和NMR、MS等谱学技术进行结构鉴定。结果:从粗壮女贞降血脂活性部位分离得到12个化合物。经鉴定分别为粗壮女贞苷C(1),粗壮女贞苷D(2),粗壮女贞苷B(3),大波斯菊苷(4),粗壮女贞苷K(5),对甲氧基肉桂酸(6),对羟基肉桂酸(7),(+)-环橄榄树脂素(8),丁香脂素-4,4'-O-β-D-双葡萄苷(9),芹菜素-7-O-β-D-芦丁糖苷(10),香叶木素-7-O-β-D-葡萄糖苷(11),异类叶升麻苷(12)。结论:化合物7和9首次从该种植物中分离得到,化合物6、8、10和11首次从该属植物中分离得到。展开更多
基金supported by the PUMC(Peking Union Medical College)Youth Fund(3332015142) National Natural Science Foundation of China(81703746)
文摘OBJECTIVE To explore the hypolipidemic mechanisms of the total phenylpropanoid glycosides fromLigustrum robustum(Roxb.) Blume(LRTPG) in hamsters using proteomics technique.METHODS The hamsters were fed with a high fat diet to induce hyperlipidemia.Then LRTPG of high(1.2 g·kg^(-1)),medium(0.6 g·kg^(-1)) and low(0.3 g·kg^(-1)) doses were administrated daily for 4 weeks.Then the concentrations of plasma and hepatic lipids were determined using enzymic methods.The total protein was extracted from livers of the model group and the group treated with the high dose of LRTPG for label-free quantitative proteomics.RESULTS LRTPG significantly reduced the concentrations of plasma and hepatic lipids in hamsters fed a high fat diet.The proteomics data showed that a total of 2231 proteins were identified,and 549 proteins were found to be differentially expressed between the model group and the group treated with LRTPG.Among the 549 proteins,93 proteins were up-regulated and 59 proteins were down-regulated,and 397 proteins were absent or not.And some of these proteins were much related to the lipid metabolism.Further,gene ontology(GO) analysis indicated metabolic process,transport,oxidation-reduction process,phosphorylation,signal transduction,lipid metabolic process were the main biological processes that those differentially expressed proteins participated.KEGG pathway analysis showed that those proteins were involved in several metabolic pathways including oxidative phosphorylation,non-alcoholic fatty liver disease(NAFLD),PI3K-Akt signaling pathway,cAMP signaling pathway,cGMP-PKG signaling pathway.CONCLUSION The proteomics study could provide valuable clues to help us to understand the hypolipidemic mechanisms of LRTPG much better.
文摘The volatile oils of the three kinds of kudingcha 〔young shoots from Ligustrum henryi Hemsl., young shoots and mature leaves from L. robustrum (Roxb.) Bl.〕 were extracted with simultaneous steam distillation extract(SDE) and analyzed and identified by GC-MS. 82 constituents had been identified out of the volatile oils. The major constituents were linalool, alloaromadendrene, gerenial, cedrol, 2-(1,1-dimethylethyl)-phenol, 3,7-dimethyl-1,6-octadien-3-ol, (+)-α-terpineol, γ-elemene, citral and phytol, etc.
文摘目的:研究粗壮女贞乙醇提取物的化学成分。方法:采用硅胶、大孔树脂、凝胶、MCI GEL CHP 20P等柱色谱法和半制备液相色谱等技术对粗壮女贞乙醇提取物的成分进行分离纯化,通过其理化性质和NMR、MS等谱学技术进行结构鉴定。结果:从粗壮女贞降血脂活性部位分离得到12个化合物。经鉴定分别为粗壮女贞苷C(1),粗壮女贞苷D(2),粗壮女贞苷B(3),大波斯菊苷(4),粗壮女贞苷K(5),对甲氧基肉桂酸(6),对羟基肉桂酸(7),(+)-环橄榄树脂素(8),丁香脂素-4,4'-O-β-D-双葡萄苷(9),芹菜素-7-O-β-D-芦丁糖苷(10),香叶木素-7-O-β-D-葡萄糖苷(11),异类叶升麻苷(12)。结论:化合物7和9首次从该种植物中分离得到,化合物6、8、10和11首次从该属植物中分离得到。
