文献类型： 外文期刊

作者： Zhang, Ju ¹ ; Jia, Dong-Sheng ³ ; Zhao, Shi-Hao ¹ ; Xie, Xiao-Liang ³ ; Chen, Hong ⁴ ; Li, Hai-Feng ⁴ ;

作者机构： 1.Hebei Univ Econ & Business, Coll Biol Sci & Engn, Shijiazhuang 050072, Hebei, Peoples R China

2.Hebei Poultry Meat Deep Proc Technol Innovat Ctr, Shijiazhuang 050072, Hebei, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Inst Cash Crop, Shijiazhuang 050061, Hebei, Peoples R China

4.Guangdong Pharmaceut Univ, Sch Biosci & Biopharmaceut, Guangzhou 510006, Peoples R China

关键词： Lycium ruthenicum Murr.; Caenorhabditis elegans; Aging; Oxidative stress; Reactive oxygen species; Antioxidant enzyme

期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.831； 五年影响因子：0.768 ）

ISSN： 0030-9923

年卷期： 2020 年 52 卷 3 期

页码：

收录情况： SCI

摘要： In order to investigate the anti-aging effects of Lycium ruthenicum Murr. granules (HGQ) and potential underlying mechanism of actions, Caenorhabditis elegans was exploited as model organisms. The anti-aging capacity of HGQ was determined by lifespan and lipofuscin fluorescence assays in wild-type C. elegans N2. Calorie restriction pathway was detected by pharyngeal pumping rate assay and lifespan examination in sir-2.1 mutant nematodes. The antioxidant activity of HGQ was investigated by determining reactive oxygen species (ROS) level, paraquat-stress survival rate, malondialdehyde (MDA) content as well as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities. We observed that HGQ exerted little effect on the growth of wild-type N2 nematodes at concentration < 0.6 mg/ml, and 0.05 mg/ml of the HGQ significantly prolonged the lifespan and reduced the lipofuscin level in N2 nematodes. However, the HGQ failed to influence the pharyngeal pumping rate in N2 nematodes or to affect the lifespan of sir-2.1 mutant nematode VC199, indicating the anti-aging effect of HGQ is independent of calorie restriction pathway. Further experiments showed that the HGQ decreased ROS and MDA contents and increased the survival rate and SOD (not CAT or GPx) activities in paraquat-stressed N2 nematodes. Our results suggest that HGQ can effectively delay the senescence of C. elegans, and this effect may be related with its significant antioxidant activity.