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Abstract Title:

Chlorella vulgaris triggers apoptosis in hepatocarcinogenesis-induced rats.

Abstract Source:

J Zhejiang Univ Sci B. 2009 Jan;10(1):14-21. PMID: 19198018

Abstract Author(s):

Emey Suhana Mohd Azamai, Suhaniza Sulaiman, Shafina Hanim Mohd Habib, Mee Lee Looi, Srijit Das, Nor Aini Abdul Hamid, Wan Zurinah Wan Ngah, Yasmin Anum Mohd Yusof

Abstract:

Chlorella vulgaris (CV) has been reported to have antioxidant and anticancer properties. We evaluated the effect of CV on apoptotic regulator protein expression in liver cancer-induced rats. Male Wistar rats (200~250 g) were divided into eight groups: control group (normal diet), CDE group (choline deficient diet supplemented with ethionine in drinking water to induce hepatocarcinogenesis), CV groups with three different doses of CV (50, 150, and 300 mg/kg body weight), and CDE groups treated with different doses of CV (50, 150, and 300 mg/kg body weight). Rats were sacrificed at various weeks and liver tissues were embedded in paraffin blocks for immunohistochemistry studies. CV, at increasing doses, decreased the expression of anti-apoptotic protein, Bcl-2, but increased the expression of pro-apoptotic protein, caspase 8, in CDE rats, which was correlated with decreased hepatocytes proliferation and increased apoptosis as determined by bromodeoxy-uridine (BrdU) labeling and terminal deoxynucleotidyl transferase mediated dUTP nick-end labeling (TUNEL) assay, respectively. Our study shows that CV has definite chemopreventive effect by inducing apoptosis via decreasing the expression of Bcl-2 and increasing the expression of caspase 8 in hepatocarcinogenesis-induced rats

Study Type : Animal Study
Additional Links
Pharmacological Actions : Apoptotic : CK(2958) : AC(2075)

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