海藻硫酸多糖抗氧化与抗肿瘤作用的实验研究 |
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引用本文: | 滕霞 丛建波. 海藻硫酸多糖抗氧化与抗肿瘤作用的实验研究[J]. 营养学报, 1998, 20(1): 48-52 |
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作者姓名: | 滕霞 丛建波 |
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作者单位: | 军事医学科学院放射医学研究所,军事医学科学院卫生学环境医学研究所 |
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摘 要: | 目的:观察海藻硫酸多糖(SP)对正常及荷瘤小鼠肝匀浆及红细胞中SOD,GSH-Px活性及脂质过氧化产物MDA含量的影响,探讨其抗氧化与抗肿瘤之间的关系。结果:移植肿瘤S180使肝组织中SOD,GSH-Px活性分别由113.73±8.17降至71.41±10.98mg/L(P<0.05),32.34±0.05降至29.96±0.16U(P<0.01),MDA含量由0.234±0.001增至0.280±0.012(P<0.05),腹腔注射或口服SP则使SOD,GSH-Px活性增至118.77±18.92mg/L(P<0.05),36.58±1.06U(P<0.01),MDA含量降至0.104±0.039(P<0.01)。且腹腔注射SP100mgkg-1d-1×10d可使肿瘤抑制率达39.13%,口服SP200mgkg-1d-1×10d也能使肿瘤抑制率达28.04%。结论:SP抑瘤作用的机理可能与抗氧化有关。
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关 键 词: | 海藻硫酸多糖 S180肉瘤 超氧化物歧化酶 谷胱甘肽过氧化物 酶脂质过氧化 |
TX THE EXPERIMENTAL STUDY ON THE ANTIOXIDATIVE AND ANTITUMOR EFFECTS OF SULFATED POLYSACCHARIDES FROM SEAWEEDS |
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Abstract: | The purpose of this study was to investigate the antioxidative and antitumor effects of sulfated polysaccharides from seaweeds(SP) and the relationship between them. The results showed that when given intraperitoneally(ip) or per os(po), SP could significantly inhibit the growth of Sarcoma 180, the inhibition rates being 38.9% (SP 50mg·kg-1 ip) and 2804% (SP 200mg·kg-1 po) respectively. Tumor bearing decreased the SOD and GSH Px activities from 113.73±8.17 to 71.41±10.98 mg·L-1 (P<0.05) and from 32.34±0.05 to 29.96±0.16 U (P<0.05), and increased the MDA level from 0.234±0.001 to 0.280±0012 (P<0.05) in liver, while SP increased SOD and GSH Px activities to 118.77±1892mg·L-1 (P<0.05, SP 200mg·kg-1 po) and 36.58±1.06U (P<0.01, SP 100mg·kg-1 ip) respectively and decreased MDA level to 0.104±0.039 (P<0.01, SP 50mg·kg-1 ip). The results suggest that the antitumor effect of SP may be releated to antioxidation. |
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Keywords: | sulfated polysaccharides from seaweeds(SP) Sarcoma 180(S180) superoxidedismutase(SOD) glutathione peroxidase(GSH Px) lipid peroxidation |
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