食品科学 ›› 2020, Vol. 41 ›› Issue (1): 121-126.doi: 10.7506/spkx1002-6630-20190623-269

• 营养卫生 • 上一篇    下一篇

黑灵芝多糖对丙烯酰胺致大鼠肝脏氧化损伤的保护作用

江国勇,雷艾彤,杨莹,余强,谢建华,陈奕   

  1. (南昌大学 食品科学与技术国家重点实验室,江西 南昌 330047)
  • 出版日期:2020-01-15 发布日期:2020-01-19
  • 基金资助:
    国家自然科学基金地区科学基金项目(21866021);江西省自然科学基金青年重点项目(20171ACB21015); 江西省青年科学家(井冈山之星)培养对象资助项目(20142BCB23005); 2018年江西省研究生创新专项资金项目(YC2018-S010)

Protective Effect of Ganoderma atrum Polysaccharides against Acrylamide-Induced Liver Injury in Rats

JIANG Guoyong, LEI Aitong, YANG Ying, YU Qiang, XIE Jianhua, CHEN Yi   

  1. (State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China)
  • Online:2020-01-15 Published:2020-01-19

摘要: 目的:研究黑灵芝多糖(Ganoderma atrum polysaccharides,PSG)对丙烯酰胺(acrylamide,AA)诱导大鼠肝脏氧化损伤的保护作用。方法:60 只雄性SD大鼠随机分成6 组,每组10 只,分别为正常组(等体积生理盐水)、模型组(20 mg/kg mb AA溶液)、阳性组(200 mg/kg mb N-乙酰-L-半胱氨酸(N-acetyl-L-cysteine,NAC))和PSG低、中、高剂量组(50、100、200 mg/kg mb)。各给药组给予相应剂量药物0.5 h后,口腔灌胃AA溶液,连续30 d。肝组织经苏木素-伊红染色,观察病理情况;测定血清谷丙转氨酶(alanine transaminase,ALT)、谷草转氨酶(aspartateaminotransferase,AST)、碱性磷酸酶(alkaline phosphatase,ALP)活力、甘油三酯(triglyceroles,TG)浓度、白细胞介素(interleukin,IL)-1β、IL-10质量浓度;同时检测肝组织匀浆中丙二醛(malondialdehyde,MDA)含量和过氧化氢酶(catalase,CAT)、谷胱甘肽过氧化物酶(glutathione peroxidase,GSH-Px)、超氧化物歧化酶(superoxide dismutase,SOD)活力。结果:PSG处理能显著改善AA导致血清AST、ALT、ALP活力,TG浓度和IL-1β质量浓度的显著升高及IL-10质量浓度的显著下降(P<0.05),肝脏组织中SOD、CAT、GSH-Px活力的显著下降和MDA含量的显著升高(P<0.05),以及肝组织的病理性损伤。结论:PSG对AA诱导的大鼠肝脏损伤具有显著保护作用。

关键词: 黑灵芝多糖, 丙烯酰胺, 氧化损伤, 肝脏损伤

Abstract: Purpose: This study aimed to investigate the protective effect of Ganoderma atrum polysaccharides (PSG) on acrylamide (AA)-induced liver injury in rats. Methods: A total of 60 SD male rats were randomly divided into 6 groups of 10 each: normal control, model (20 mg/kg mb of AA), positive control (N-acetyl-L-cysteine, NAC; at 200 mg/kg mb) and low-, medium and high-dose PSG treatment groups (at doses of 50, 100 and 200 mg/kg mb). The rats in the normal control group were given normal saline at the same volume as the corresponding drugs for the other groups. Starting from half an hour after the administration, the AA aqueous solution was orally administered for 30 continuous days. Pathological observation of liver tissues was performed by hematoxylin and eosin (HE) staining. The activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) and the concentrations of triglyceride (TG) and interleukin (IL-1β and IL-10) in serum were measured. Then, the activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) and the content of MDA in liver tissue homogenate were measured. Results: AA significantly increased AST, ALT and ALP activity as well as TG and IL-1β concentration, and decreased IL-10 levels in serum (P < 0.05); significantly reduced the activity of SOD and CAT and GSH-Px and increased MDA content in liver tissue (P < 0.05); and caused pathological liver injury. PSG obviously attenuated all these negative effects. Conclusion: Ganoderma atrum polysaccharides can have a significant protective effect on acrylamide-induced liver injury.

Key words: Ganoderma atrum polysaccharides, acrylamide, oxidative damage, liver injury

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