Eintrag weiter verarbeiten

Tannin-rich extracts from Lannea stuhlmannii and Lannea humilis (Anacardiaceae) exhibit hepatoprotective activities in vivo via enhancement of the anti-apoptotic protein Bcl-2

Gespeichert in:

Veröffentlicht in: Scientific reports volume:8; 8(2018) Artikel-Nummer 9343, 16 Seiten; extent:16; year:2018
Personen und Körperschaften: Sobeh, Mansour (VerfasserIn), Wink, Michael (VerfasserIn)
Titel: Tannin-rich extracts from Lannea stuhlmannii and Lannea humilis (Anacardiaceae) exhibit hepatoprotective activities in vivo via enhancement of the anti-apoptotic protein Bcl-2/ Mansour Sobeh, Mona F. Mahmoud, Rehab A. Hasan, Mohamed A. O. Abdelfattah, Omar M. Sabry, Mosad A. Ghareeb, Assem M. El-Shazly & Michael Wink
Format: E-Book-Kapitel
Sprache: Englisch
veröffentlicht:
19 June 2018
Gesamtaufnahme: : Scientific reports, 8(2018) Artikel-Nummer 9343, 16 Seiten
, volume:8
Quelle: Verbunddaten SWB
Lizenzfreie Online-Ressourcen
Details
Zusammenfassung: The potential hepatoprotective activities of two Lannea species were explored in vivo. Furthermore, the binding activities of their main polyphenols to the antiapoptotic protein Bcl-2 were investigated. Based on HPLC-MS/MS results, 22 secondary metabolites were characterized in L. stuhlmannii (mainly tannins), while 20 secondary metabolites (mainly sulphated tannins) were identified in L. humilis. Both extracts exhibited substantial antioxidant activities in vitro and counteracted D-galactosamine induced intoxication in rats in vivo and increased the total antioxidant capacity (TAC) of liver tissues. In addition to reducing the elevated levels of AST and total bilirubin, both extracts significantly attenuated the deleterious histopathologic changes in liver after D-galactosamine-intoxication. Also, both extracts protected hepatocytes from apoptotic cell death and increased the expression of the anti-apoptotic protein Bcl-2. The identified compounds from both extracts can bind to the Bcl-2: Bim (BH3) interface with an appreciable binding free energy. Hydrogen and ionic bonds and hydrophobic interactions with amino acid residues in the hydrophobic face of Bim (BH3) domain were discovered. To sum up, L. humilis and L. stuhlmanni exhibited promising hepatoprotective activities in vivo against D-GalN-induced liver injury and their hepatoprotection is due to the antioxidant and anti-apoptotic effects of tannins and proanthocyanidins.
Beschreibung: Gesehen am 25.07.2018
Umfang: 16
ISSN: 2045-2322
DOI: 10.1038/s41598-018-27452-8