TY - JOUR
T1 - Antioxidants of Phyllanthus emblica L. Bark Extract Provide Hepatoprotection against Ethanol-Induced Hepatic Damage
T2 - A Comparison with Silymarin
AU - Chaphalkar, Renuka
AU - Apte, Kishori G.
AU - Talekar, Yogesh
AU - Ojha, Shreesh Kumar
AU - Nandave, Mukesh
N1 - Publisher Copyright:
© 2017 Renuka Chaphalkar et al.
PY - 2017
Y1 - 2017
N2 - Phyllanthus emblica L. (amla) has been used in Ayurveda as a potent rasayan for treatment of hepatic disorders. Most of the pharmacological studies, however, are largely focused on PE fruit, while the rest of the parts of PE, particularly, bark, remain underinvestigated. Therefore, we aimed to investigate the protective effect of the hydroalcoholic extract of Phyllanthus emblica bark (PEE) in ethanol-induced hepatotoxicity model in rats. Total phenolic, flavonoid, and tannin content and in vitro antioxidant activities were determined by using H2O2 scavenging and ABTS decolorization assays. Our results showed that PEE was rich in total phenols (99.523±1.91 mg GAE/g), total flavonoids (389.33±1.25 mg quercetin hydrate/g), and total tannins (310±0.21 mg catechin/g), which clearly support its strong antioxidant potential. HPTLC-based quantitative analysis revealed the presence of the potent antioxidants gallic acid (25.05 mg/g) and ellagic acid (13.31 mg/g). Moreover, one-month PEE treatment (500 and 1000 mg/kg, p.o.) followed by 30-day 70% ethanol (10 mL/kg) administration showed hepatoprotection as evidenced by significant restoration of ALT (p<0.01), AST (p<0.001), ALP (p<0.05), and TP (p<0.001) and further confirmed by liver histopathology. PEE-mediated hepatoprotection could be due to its free radical scavenging and antioxidant activity that may be ascribed to its antioxidant components, namely, ellagic acid and gallic acid. Thus, the results of the present study support the therapeutic claims made in Ayurveda about Phyllanthus emblica.
AB - Phyllanthus emblica L. (amla) has been used in Ayurveda as a potent rasayan for treatment of hepatic disorders. Most of the pharmacological studies, however, are largely focused on PE fruit, while the rest of the parts of PE, particularly, bark, remain underinvestigated. Therefore, we aimed to investigate the protective effect of the hydroalcoholic extract of Phyllanthus emblica bark (PEE) in ethanol-induced hepatotoxicity model in rats. Total phenolic, flavonoid, and tannin content and in vitro antioxidant activities were determined by using H2O2 scavenging and ABTS decolorization assays. Our results showed that PEE was rich in total phenols (99.523±1.91 mg GAE/g), total flavonoids (389.33±1.25 mg quercetin hydrate/g), and total tannins (310±0.21 mg catechin/g), which clearly support its strong antioxidant potential. HPTLC-based quantitative analysis revealed the presence of the potent antioxidants gallic acid (25.05 mg/g) and ellagic acid (13.31 mg/g). Moreover, one-month PEE treatment (500 and 1000 mg/kg, p.o.) followed by 30-day 70% ethanol (10 mL/kg) administration showed hepatoprotection as evidenced by significant restoration of ALT (p<0.01), AST (p<0.001), ALP (p<0.05), and TP (p<0.001) and further confirmed by liver histopathology. PEE-mediated hepatoprotection could be due to its free radical scavenging and antioxidant activity that may be ascribed to its antioxidant components, namely, ellagic acid and gallic acid. Thus, the results of the present study support the therapeutic claims made in Ayurveda about Phyllanthus emblica.
UR - http://www.scopus.com/inward/record.url?scp=85010664446&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85010664446&partnerID=8YFLogxK
U2 - 10.1155/2017/3876040
DO - 10.1155/2017/3876040
M3 - Article
C2 - 28168009
AN - SCOPUS:85010664446
SN - 1942-0900
VL - 2017
JO - Oxidative medicine and cellular longevity
JF - Oxidative medicine and cellular longevity
M1 - 3876040
ER -