Article Publish Status: FREE
Abstract Title:

Antioxidant activities in vitro and hepatoprotective effects of Nelumbo nucifera leaves in vivo.

Abstract Source:

Afr J Tradit Complement Altern Med. 2014 ;11(3):85-91. Epub 2014 Apr 3. PMID: 25371567

Abstract Author(s):

Lin Yuan, Xuezhu Gu, Zhenhua Yin, Wenyi Kang

Article Affiliation:

Lin Yuan


BACKGROUND: Herbal medicines played a major role in the treatment of hepatic disorders, and a number of medicinal plants and their compounds were widely used for the treatment of these disorders, and oxidant stress injury was one of the mechanism of liver injury.

MATERIALS AND METHODS: Antioxidant activity of Nelumbo nucifera leaves (NU) extracts was assayed by the methods of scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzo-thiazoline-6-sulfonicacid) (ABTS) radical and ferric reducing antioxidant power (FRAP) in vitro. By intraperitoneal injection carbon tetrachloride (CCl4) to establish acute liver injury model in mice, the levels of Glutamic-pyruvic transaminase (GPT), glutamic-oxaloacetic transaminase (GOT), superoxide dismutase (SOD) and the content of and maleicdialdehyde (MDA) were detected to evaluate hepatoprotective effect of NU using corresponding test kit.

RESULTS: EtOAC (NUEA) and n-BuOH extracts (NUBU) of N. nucifera leaves had good scavenging DPPH and ABTS radical activity and ferric reducing antioxidant power in vitro. DPPH radical scavenging activity and ferric reducing antioxidant power of NUEA (IC50= 6.68±0.29 µg/mL, RACT50=1749.82±67.03 µmol/g) and NUBU (IC50= 4.61±0.01 µg/mL, RACT50=1995.27±135.71 µmol/g ) were higher than that of BHT (IC50=8.76±0.20 µg/mL, RACT50=1581.68±97.41 µmol/g) and Dangfeiliganning (IC50=28.06±0.17 µg/mL, RACT50=1028.55±3.28 µmol/g). ABTS radical scavengingactivity of NUEA (IC50= 5.32±0.12 µg/mL) and NUBU (IC50= 8.16±0.27 µg/mL) were higher than that of Dangfeiliganning (IC50= 9.76±0.16 µg/mL). Thus, hepatoprotective effect of NUEA and NUBU was evaluated on CCl4-induced acute liver injury mice. The results showed that the levels of GOT and GPTin each treatment group significantly decreased (p<0.001 and p<0.01, p<0.05, respectively) except for the group of NUEA (130.8 mg/kg) (p>0.05). The contents of malondialdehyde (MDA) in liver in groups of NUEA (523 mg/kg), NUBU (840.5 and 420.5 mg/kg, repectively) had significant decrease (p<0.001 and p<0.05, respectively), and the level of SOD in liver for each treatment group could significantly decrease (p<0.001, p<0.05, respectively).

CONCLUSION: NUEA and NUBU had significantly hepatoprotective effect for Calcium tetrachloride CCl4-induced liver injury, which might be attributable to its antioxidant activity.

Study Type : Animal Study, In Vitro Study

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