期刊
SAUDI PHARMACEUTICAL JOURNAL
卷 26, 期 5, 页码 685-693出版社
ELSEVIER
DOI: 10.1016/j.jsps.2018.02.022
关键词
Guiera senegalensis; HPTLC; beta-Amyrin; beta-Sitosterol; Lupeol; Ursolic acid; Antioxidant; Antiviral; Anti-HBV
资金
- Deanship of Scientific Research at King Saud University [RG-1435-053]
Guiera senegalensis J. F. Gmel is a broad-spectrum African folk-medicinal plant, having activities against fowlpox and herpes viruses. Very recently, we have shown the anti-hepatitis B vius (HBV) potential of G. senegalensis leaves extract (GSLE). Here, we report the antioxidative and hepatoprotective efficacy of GSLE, including HPTLC quantification of four biomarkers of known antioxidative and antiviral activities. In cultured liver cells (HuH7) GSLE attenuated DCFH-induced oxidative stress and cytotoxicity. This was supported by in vitro DPPH radical-scavenging and beta-carotene-linoleic acid bleaching assays that showed strong antioxidant activity of GSLE. Further, two simple and sensitive HPTLC methods (I and II) were developed and validated to quantify beta-amyrin, beta-sitosterol, lupeol, ursolic acid in GSLE. While HPTLC-I (hexane: ethylacetate; 75: 25; v/v) enabled quantification of b-amyrin (Rf = 0.39; 20.64 mu g/mg) and b-sitosterol (Rf = 0.25; 18.56 mu g/mg), HPTLC-II (chloroform: methanol; 97: 3; v/v) allowed estimation of lupeol (Rf = 0.47; 6.72 mu g/mg) and ursolic acid (Rf = 0.23; 5.81 mu g/mg) in GSLE. Taken together, the identified biomarkers strongly supported the antioxidant and anti-HBV potential of GSLE, suggesting its activity via abating the oxidative stress. To our knowledge, this is the first report on HPTLC analysis of these biomarkers in G. senegalensis that could be adopted for standardization and quality-control of herbal-formulations. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
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