Target cell extraction coupled with LC-MS/MS analysis for screening potential bioactive components inGinkgo bilobaextract with preventive effect against diabetic nephropathy

2014 ◽  
Vol 29 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Jing-ying Qiu ◽  
Xu Chen ◽  
Xiao-xiao Zheng ◽  
Xiang-lan Jiang ◽  
Dong-zhi Yang ◽  
...  
2020 ◽  
Vol 18 (1) ◽  
pp. 265-274
Author(s):  
Wei-hong Chen ◽  
Zhen Luo ◽  
Zi-Wan Ning ◽  
Jiao Peng ◽  
Xiao-peng Hu ◽  
...  

AbstractExtracts of Cyclocarya paliurus (CP) leaves, a popular sweet tea, inhibit pancreatic β cell apoptosis and have potent hypoglycemic effects, but the identities of the anti-apoptotic bioactive components are still unknown. In the present study, a method using UPLC-Q-TOF/MS based on serum pharmacochemistry combined with target cell extraction was established to rapidly identify direct-acting pancreatic protectants from CP. After orally administering a set amount of CP extract to rats, blood samples were collected to characterize the components that can be absorbed into the blood using UPLC-Q-TOF/MS. Also, target cells (pancreatic β NIT-1 cells) were incubated with CP extract for 24 hours, and cells were collected to identify the components that can bind to the cells using UPLC-Q-TOF/MS. Finally, to evaluate the protective effect of the bioactive components of CP, MTT and TUNEL assays were performed on treated NIT-1 cell induced by streptozotocin (STZ). Three potential direct-acting pancreatic protectants -- kaempferol, quercetin, quadranoside IV -- were identified, and anti-apoptotic effects of kaempferol and quercetin were confirmed in STZ-induced NIT-1 cells. The findings indicate that this combined approach is a feasible, rapid, and expedient tool for capturing potential direct-acting components from natural products such as those from CP leaves.


2010 ◽  
Vol 4 (8-9) ◽  
pp. 697-705 ◽  
Author(s):  
Henning G. Hansen ◽  
Julie Overgaard ◽  
Maria Lajer ◽  
Frantisek Hubalek ◽  
Peter Højrup ◽  
...  

Author(s):  
Govindasamy Balasubramani ◽  
Rajendiran Ramkumar ◽  
Narayanaswamy Krishnaveni ◽  
Rajamani Sowmiya ◽  
Paramasivam Deepak ◽  
...  

2019 ◽  
Vol 4 (3) ◽  
pp. 180-184
Author(s):  
Vijetha Pendyala ◽  
Vidyadhara Suryadevara ◽  
Subbarao Jampani ◽  
Suhasini Jala

Present study was an attempt to investigate the bioactive components present in the leaves of Guaiacum officinale using gas chromatography-mass spectroscopy (GC-MS) analysis and study the antiinflammatory potential of those constituents using molecular docking studies. GC-MS analysis was done by standard protocol using the equipment JEOL GC MATE II. The identification of components was based on NIST (National Institute of Standards and Technology) Version-11 library as well as comparison of their retention indices. The molecular docking studies were done using the commercial docking software MCULE, 1-click docking. GC-MS analysis of the alcoholic extract showed the presence of ten compounds at different retention times. The phytoconstituent 8,11,14-eicosatrienoic acid was present at high concentration with % peak area of 43.3 at a retention time of 19.43 min followed by 5,7-dihydroxy-8-methoxy flavone (Wogonin) at a retention time of 17.73. All 10 compounds obtained from GC-MS analysis and diclofenac were used as the ligands in this study, with cyclooxygenase-2 (COX-2), phospholipase A2 and interleukin receptor as the molecular targets. in silico Docking studies revealed that the flavanoid Wogonin is having highest binding potential indicated by least docking score of -8.2, -8 and -6.9 kcal/mol on COX-2, phospholipase A2 and interleukin receptor respectively.


2010 ◽  
Vol 17 (Suppl 1) ◽  
pp. S46 ◽  
Author(s):  
Shumei Lin ◽  
Jiancheng Yang ◽  
Gaofeng Wu ◽  
Mei Liu ◽  
Xinhong Luan ◽  
...  

2011 ◽  
Vol 480-481 ◽  
pp. 513-518
Author(s):  
Qi Mei Liu ◽  
Wan Xi Peng

450°C-based pyrolysis- GC/MS technology was used to analyze the bioactive components of ethanol extractives of oil-tea cake. The analytical result showed that 38 peaks were obtained from the 450°C-based pyrolyzate of ethanol extractives of oil-tea cake, and 37 compounds representing 97.81 % of the total areas were identified (Table 1). The analytical result showed that the main components of ethanol extractives of oil-tea cake by 450°C-based pyrolysis- GC/MS were as: Benzene, 1,2,3-Trimethoxy-5-Methyl- (21.56%), Phenol, 3,4-Dimethoxy- (16.31%), 3',5'-Dimethoxyacetophenone (14.37%), 1,2-Ethanediamine, N-Ethyl- (6.62%), Indole (5.39%), Mequinol (4.13%), Phosphonic Acid, (P-Hydroxyphenyl)- (2.97%), 1,2-Cyclobutanedicarboxylic Acid, Cis- (1.67%), Bicyclo 3.1.0 Hexan-3-One (1.38%), Benzene, 1,4-Dimethoxy-2,3,5,6- Tetramethyl- (1.35%), 2h-Azepin-2-One, Hexahydro-1-(2-Propenyl)- (1.15), etc. The results of function analyses showed that the 450°C-based pyrolyzate of ethanol extractives of oil-tea cake can be used as rare natural medicinal materials, and value-added materials of spice, food and cosmetic industry.


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