Screening, identification and activity evaluation of pancreatic lipase inhibition in Prunella vulgaris / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 4665-4671, 2018.
Article
de Zh
| WPRIM
| ID: wpr-771535
Bibliothèque responsable:
WPRO
ABSTRACT
Pancreatic lipase (PL) inhibitors were firstly screened from Prunella vulgaris with PL immobilized on carboxylic acid-terminated magnetic nanoparticles, then these possible inhibitors were identified by LC-MS/MS and mixed standards. Finally, their inhibitory effects and types on PL were tested by p-nitrophenol method. The results showed that four PL inhibitors were screened out from P. vulgaris and confirmed by LC-MS/MS and mixed standards. The IC₅₈ and inhibition types were as follows: caffeic acid [(252.3±3.6) mg·L⁻¹, anti-competitive inhibition], rutin [(91.2±1.6)mg·L⁻¹, competitive inhibition], hesperidin [(31.5±4.4) mg·L⁻¹, competitive inhibition] and ursolic acid [(41.3±2.2) mg·L⁻¹, competitive inhibition]. Their inhibitive types and abilities on PL were related to their molecular size, hydrophobicity and the number of hydrogen bond with PL triplet.
Mots clés
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Extraits de plantes
/
Chromatographie en phase liquide
/
Prunella
/
Spectrométrie de masse en tandem
/
Triacylglycerol lipase
Type d'étude:
Diagnostic_studies
/
Screening_studies
langue:
Zh
Texte intégral:
China Journal of Chinese Materia Medica
Année:
2018
Type:
Article