Hepatoprotective Effect of Arctium lappa Root Extract on Cadmium Toxicity in Adult Wistar Rats
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This study was performed to determine the effects of Arctium lappa (Al) to protect against cadmium damage in the rat liver. Male rats received a single i.p. dose of CdCl2 (1.2 mg/kg body weight (BW)) with or without Al extract administered daily by gavage (300 mg/kg BW) for 7 or 56 days. After 7 days, Al caused plasma transaminase activity to diminish in groups Al (glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT)) and CdAl (GPT). After 56 days, GOT and GPT plasma activities were reduced in the Cd group. No alteration in plasma levels of creatinine, total bilirubin, and total protein were observed. GOT liver activity increased in the Cd group. No alteration was observed in superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), and malondialdehyde (MDA) dosage. In the Cd group, hepatocyte proportion decreased and sinusoid capillary proportion increased. In the Al and CdAl groups, the nuclear proportion increased and the cytoplasmic proportion decreased. The hepatocyte nucleus density reduced in Cd and increased in the Al group. After 56 days, there was no alteration in the Cd group. In Al and CdAl groups, the nuclear proportion increased without cytoplasmic proportion variation, but the sinusoid capillary proportion was reduced. The hepatocyte nucleus density decreased in the Cd group and increased in the Al and CdAl groups. In conclusion, the liver function indicators showed that A. lappa protected the liver against cadmium toxicity damage.
KeywordsLiver Cadmium A. lappa Plasma parameters Stereology Oxidative stress
This work was supported by grants and scholarships from the Fundação de Amparo à Pesquisa do Estado de São Paulo (grant number 2006 ⁄06142-8).
Conflict of Interest
The authors declare that there is no conflict of interest.
- 13.Habig WH, Pabst MJ, Jakoby WB (1970) Glutathione S-transferases: the first enzymatic step in mercapturic acid formation. J Biol Chem 249:7130–7139Google Scholar
- 16.Ashafa AOT, Yakubu MT, Grierson DS, Afolayan AJ (2009) Effects of aqueous extract from the leaves of Chrysocoma ciliata L. on some biochemical parameters of Wistar rats. Afr J Biotechnol 8:1425–1430Google Scholar
- 21.Renugadevi J, Prabu SM (2010) Naringenin protects against cadmium-induced oxidative renal dysfunction in rats. Toxicology 256:128–134Google Scholar