研究简报

N-乙酰半胱氨酸对脂多糖刺激仔猪空肠黏膜抗氧化能力的影响

展开
  • 武汉工业学院,动物营养与饲料科学湖北省重点实验室,武汉 430023
张伟(1982—),男,湖北天门人,硕士研究生,研究方向为生理活性物质与营养代谢调控。E-mail: zw5263@163.com

收稿日期: 2010-11-29

  网络出版日期: 2011-05-16

基金资助

武汉市学科带头人计划项目(200951830554)、湖北省自然科学基金计划创新群体项目(2007ABC009)

Effects of Dietary N-acetylcysteine on the Antioxidant Capacity of Jejunal Mucosa of Piglets Challenged with Lipopolysaccharide

Expand
  • Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China

Received date: 2010-11-29

  Online published: 2011-05-16

摘要

本试验旨在研究N-乙酰半胱氨酸(NAC)对脂多糖(LPS)慢性刺激仔猪空肠黏膜抗氧化能力的影响。选用18头健康仔猪[平均体重为(1158±026) kg],随机分为3个组(对照组、LPS组、NAC组),每组6个重复,每个重复1头猪。对照组和LPS组饲喂基础饲粮,NAC组饲喂基础饲粮+005% NAC。在试验第10天、第13天和第20天清晨,LPS组和NAC组仔猪腹膜注射100 μg/kg BW的LPS,对照组注射相应剂量的灭菌生理盐水。第21天屠宰,取小肠黏膜样品,待测。结果表明:1)LPS刺激降低了仔猪空肠黏膜超氧化物歧化酶(SOD,P<0.01)和过氧化氢酶(CAT,P<0.01)活性,提高了一氧化氮合酶(NOS,P<0.05)和诱导型一氧化氮合酶(iNOS,P<0.01)活性;饲粮中添加005%的NAC提高了LPS刺激仔猪空肠黏膜CAT活性(P<0.01),降低了iNOS活性(P<0.01)。2)LPS刺激提高了仔猪空肠黏膜丙二醛(MDA,P<0.05)、过氧化氢(H2O2,P<0.05)、超氧阴离子(O-2,P<0.01)含量和氧化型谷胱甘肽/还原型谷胱甘肽(GSSG/GSH,P<0.01);饲粮中添加0.05%的NAC降低了LPS刺激仔猪空肠黏膜MDA(P<0.05)、H2O2(P<0.05)、O-2含量(P<001)和GSSG/GSH(P<0.01)。由此可知,饲粮中添加005%NAC能有效缓解LPS刺激对仔猪肠黏膜抗氧化能力的负影响。

本文引用格式

张伟,杨震国,侯永清,丁斌鹰,朱惠玲,刘玉兰,王蕾 . N-乙酰半胱氨酸对脂多糖刺激仔猪空肠黏膜抗氧化能力的影响[J]. 动物营养学报, 2011 , 23(05) : 842 -847 . DOI: 10.3969/j.issn.1006-267x.2011.05.019

Abstract

The study was conducted to investigate the effects of N-acetylcystine (NAC) on the antioxidant capacity of jejunal mucosa of piglets chronically challenged with lipopolysaccharide (LPS). Eighteen healthy piglets [average body weight, (11.58±0.26) kg] were randomly allocated into 3 groups (control group, LPS group and NAC group). Each group included 6 replicates with one piglet per replicate. The control group and LPS group were fed the basal diet, and NAC group was fed the basal diet supplemented with 0.05% NAC. On d 10, 13 and 20, piglets in the LPS and NAC groups were injected intraperitoneally with LPS at 100 μg/kg BW, whereas piglets in the control group were injected intraperitoneally with normal sterile saline at the same volume. On d 21, all pigs were sacrificed to obtain jejunal mucosa for analysis. The results showed as follows: 1) LPS challenge reduced the activities of superoxide dismutase (SOD, P<0.01) and catalase (CAT, P<0.01), and increased the activities of nitric oxide synthase (NOS, P<0.05) and inducible nitric oxide synthase (iNOS, P<0.01) in jejunal mucosa of the piglets; the supplementation of 0.05% NAC in the diet increased CAT activity (P<0.01), and reduced iNOS activity (P<0.01) in jejunal mucosa of the piglets challenged with LPS 2) LPS challenge increased the contents of malondialdehyde (MDA, P<0.05), hydrogen peroxide (H2O2, P<0.05) and superoxide anion (O-2, P<0.01), and glutathione oxidized/glutathione (GSSG/GSH, P<0.01) ratio in jejunal mucosa of the piglets; the supplementation of 0.05% NAC in the diet reduced the contents of MDA (P<0.05), H2O2 (P<0.05) and O-2 (P<0.01), and GSSG/GSH ratio (P<0.01) in jejunal mucosa of the piglets challenged with LPS In conclusion, the supplementation of 0.05% NAC in the diet can effectively alleviate the oxidative stress in intestinal mucosa of the piglets induced by LPS challenge.[Chinese Journal of Animal Nutrition, 2011, 23(5):842 -847]

参考文献

[1]刘坚,侯永清,丁斌鹰,等.α-酮戊二酸对脂多糖应激仔猪肠黏膜能量代谢的影响[J].动物营养学报,2009,21(6):892-896.

[2]高运苓,吴信,周锡红,等.精氨酸和精氨酸生素对断奶仔猪氧化应激的影响[J].农业现代化研究,2010,31(4):484-487.

[3]MCCORD J M. Human disease, free radicals, and the oxidant/antioxidant balance[J]. Clinical Biochemistry, 1993, 26(5):351-357.

[4]张再重,王瑜,王烈,等.N-乙酰半胱氨酸对肠屏障功能障碍防治作用的研究现状[J].临床军医杂志,2007,35(5):756-759.

[5]GREGORY S, KELLY K D. Clinical applications of N-acetylcysteine[J]. Alternative Medicine Review, 1998, 3(2):114-127.

[6]鲍红荣,童立力.N-乙酰半胱氨酸的药理作用及其临床应用[J].浙江临床医学,2008,10(9):1274-1275.

[7]NISHI K, ODA T, TAKABUCHI S, et al. LPS induces hypoxia-inducible factor 1 activation in macrophage-differentiated cells in a reactive oxygen species-dependent manner[J]. Antioxidants & Redox Signaling, 2008, 10(5):983-995.

[8]谭亚男,尹宗宁.羟胺法测定小鼠组织中自由基含量[J].中国生化药物杂志,2009,30(5):330-332.

[9]BARBUL A. Arginine, biochemistry, physiology and therapeutic implications[J]. Journal of Parenteral and Enteral Nutrition, 1986, 10(2):227-238.

[10]吴华香,宋作佳,周君富.老年糖尿病患者自由基与微血管并发症关系的探讨[J].中华老年医学杂志,2002,21(4):254-256.

[11]李永塘.α-酮戊二酸对脂多糖刺激仔猪肝脏形态结构及生理功能的影响[D].硕士学位论文.武汉:武汉工业学院,2009:26.

[12]SRIDHARAN S, SHYAMALADEVI C S. Protective effect of N-acetylcysteine against gamma ray induced damages in rats-biochemical evaluations[J]. Indian Journal of Experimental Biology, 2002, 40(2):181-186.

[13]王国燕,邓学端,何永蜀,等.人参皂甙Rg1对脂多糖/D-氨基半乳糖诱导的小鼠肝炎及一氧化氮合酶的影响[J].世界华人消化杂志,2000,8(11):1317.

[14]TACHE Y, PERDUE M H. Role of peripheral CRF signalling pathways in stress-related alterations of gut motility and mucosal function[J]. Neurogastroenterology and Motility, 2004, 16(11):137-142.

[15]VIEIRA H, KROEMER G. Mitochondria as targets of apoptosis regulation by nitric oxide[J]. IUBMB Life, 2003, 55(10/11):613-616.

[16]巫国谊,赵有蓉,郭树华.N-乙酰半胱氨酸对肝损伤大鼠体内NO水平及NOS活性的影响[J].重庆医科大学学报,2005,30(3):383-389.

[17]王乖娟,刘卫兵,荆鲁华,等.银屑宁胶囊对心得安致豚鼠银屑病样皮损NO和MDA水平的影响[J].中国中西医结合皮肤性病学杂志,2005,4(3):166-168.

[18]王永梅.自由基与谷胱甘肽过氧化物酶[J].解放军药学学报,2005,21(5):369-371.

[19]ELLIOTT S J, KOLIWAD S K. Redox control of ion channel activity in vascular endothelial cells by glutathione[J]. Microcirculation, 1997, 36(4):341-347.

[20]宋玉果,王涤新.谷胱甘肽作为脂质过氧化损伤指标的研究[J].中华预防医学杂志,1999,33(5):317-319.

[21]田新强,许瑞龄,尹蕾.N-乙酰半胱氨酸对脂多糖诱导的小鼠肝MAPK磷酸化的影响[J].中国病理生理杂志,2008,24(8):1565-1569.

[22]刘平洋.谷胱甘肽对断奶仔猪的促生长作用及其机制[D].硕士学位论文.广州:华南农业大学,2002:2.

[23]乔小蓉,张静,郑海霞,等.血清氧化-还原态的检测及其与细胞损伤的关系[J].四川生理科学杂志,2004,26(1):16-21.

[24]刘垒,王永才,周勤飞,等.普生源对断奶仔猪生长性能、抗氧化能力和细胞免疫功能的影响[J].饲料工业,2008,29(15):26-28.

[25]胡尧,张丽丽,侯永清,等.N-乙酰半胱氨酸对脂多糖应激仔猪生长性能及血液生化指标的影响[J].动物营养学报,2010,22(4):1007-1011.
文章导航

/