Iron chelator deferoxamine reduces preneoplastic lesions in liver induced by choline-deficient L-amino acid-defined diet in rats

被引:33
作者
Sakaida, I [1 ]
Hironaka, K [1 ]
Uchida, K [1 ]
Okita, K [1 ]
机构
[1] Yamaguchi Univ, Sch Med, Dept Internal Med 1, Ube, Yamaguchi 755, Japan
关键词
preneoplastic lesion; enzyme-altered lesion; liver fibrosis; free radical; iron;
D O I
10.1023/A:1026661508553
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
The aim of this study was to investigate whether an iron chelator, deferoxamine (DFO) can prevent lipid peroxidation, resulting in reduced liver injury as well as reducing preneoplastic lesions induced by a choline-deficient L-amino acid-defined (CDAA) diet. CDAA diet administration resulted in an increased serum ALT level (367 +/- 58) after two weeks, but simultaneous DFO treatment for two weeks reduced this elevation of ALT as well as malondialdehyde (MDA) production in the liver. Feeding rats a CDAA diet for 12 weeks led to the development of severe liver fibrosis and preneoplastic lesions detected as enzyme-altered lesions. DFO treatment prevented the expression of activated stellate cells, resulting in the reduction of liver fibrosis as well as reducing the development of preneoplastic lesions. These results indicate that iron chelation can reduce the development of preneoplastic lesions in a CDAA diet model.
引用
收藏
页码:560 / 569
页数:10
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