Supplementation of Psidium guajava (Guava) fruit polysaccharide attenuates paracetamol-induced liver injury by enhancing the endogenous antioxidant activity

Aspalilah Alias, and Faizah Othman, and Abdul Rashid Li, and Aqilah Kamaruddin, and Rafizul Yusof, and Farida Hussan, (2015) Supplementation of Psidium guajava (Guava) fruit polysaccharide attenuates paracetamol-induced liver injury by enhancing the endogenous antioxidant activity. Sains Malaysiana, 44 (4). pp. 1129-1136. ISSN 0126-6039

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Official URL: http://www.ukm.my/jsm/english_journals/vol44num8_2...

Abstract

This study was aimed to determine the effect of polysaccharide from guava fruit on paracetamol (PCM)-induced liver injury. Aqueous extract of Psidium guajava fruit was treated with 95% ethanol to collect the water soluble polysaccharide precipitates. Thirty-eight male Sprague Dawley rats were divided into control (C), PPG400, PCM, PPG200+PCM and PPG400+PCM. The control and PCM groups received 0.9% normal saline orally while the rest were given 200 and 400 mg/kg of freeze-dried polysaccharide (PPG) per oral for fourteen days. At day 15, the animals were orally received PCM (2 g/kg) except the control and PPG400 groups which received 5% dimethyl sulfoxide. At day 16, the blood was collected to determine serum liver enzymes such as transaminases (AST and ALT). The liver tissue was harvested for determination of superoxide dismutase (SOD), glutathione (GSH), tumour necrosis factor-α (TNF-α), interleukin-6(IL6), microscopic changes and glycogen content. The PCM group showed significant higher level of AST, ALT, TNF-α and IL6 than those of group C. The PCM group showed glycogen depletion, vacuolisation, loss of cell membrane, inflammatory cells infiltration and distorted hepatocelluar cords and narrow sinusoidal spaces. However, those PCM-induced alterations were attenuated by the PPG supplementation. Therefore, the polysaccharide of Psidium guajava possesses hepatoprotective activity and can be used as a dietary supplementation for protection of liver.

Item Type:Article
Keywords:Antioxidant; guava; liver; paracetamol; polysaccharide
Journal:Sains Malaysiana
ID Code:9042
Deposited By: ms aida -
Deposited On:04 Oct 2015 10:41
Last Modified:14 Dec 2016 06:48

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