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Antioxidant and drug detoxification potential of aqueous extract of Annona senegalensis leaves in carbon tetrachloride-induced hepatocellular damage.

Abstract：

CONTEXT: Despite the myriad uses of Annona senegalensis Pers. (Annonaceae) leaves in folklore medicine of Nigeria, the basis is yet to be substantiated by scientific investigations. OBJECTIVES: To investigate the antioxidant (in vitro and in vivo) and drug detoxification potential of aqueous extract of A. senegalensis leaves in CCl₄-induced hepatocellular damage. MATERIALS AND METHODS: In vitro antioxidant activity of the aqueous extract of A. senegalensis leaves was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH), H₂O₂, superoxide ion, 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulfonate) (ABTS) and ferric ion models while in vivo antioxidant and drug detoxification activities of the extract at 100, 200, and 400 mg/kg body weight were done by assaying the levels of enzymic and non-enzymic indices in CCl₄-induced hepatocellular damage. RESULTS: The extract at 1 mg/mL scavenged DPPH, H₂O₂, superoxide ion, and ABTS radicals, whereas ferric ion was significantly (P <0.05) reduced. The levels of alkaline and acid phosphatases, alanine and aspartate aminotransferases, superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glucose-6-phosphate dehydrogenase, reduced glutathione, vitamins C and E, glutathione S-transferase, nicotinamide adenine dinucleotide (reduced):Quinone oxidoreductase, uridyl diphosphoglucuronyl transferase, malondialdehyde, and lipid hydroperoxide that decreased in CCl₄ treated animals were significantly attenuated by the extract in a manner similar to the animals treated with the reference drug. DISCUSSION AND CONCLUSION: The ability of the aqueous extract of A. senegalensis leaves to scavenge free radicals in vitro and reversal of CCl₄-induced hepatocellular damage in rats suggest antioxidant and drug detoxification activities. Overall, this study has justified the rationale behind some of the medicinal uses of the plant in folklore medicine of Nigeria.

journal_name

Pharm Biol

journal_title

Pharmaceutical biology

authors

Ajboye TO,Yakubu MT,Salau AK,Oladiji AT,Akanji MA,Okogun JI

doi

10.3109/13880209.2010.483247

subject

Has Abstract

pub_date

2010-12-01 00:00:00

pages

1361-70

issue

eissn

1388-0209

issn

1744-5116

journal_volume

pub_type

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Antioxidant and drug detoxification potential of aqueous extract of Annona senegalensis leaves in carbon tetrachloride-induced hepatocellular damage.