针对高脂饮食引起血脂升高这一广泛性问题,本文研究通过紫山药高抗性淀粉(HRS)干预高脂饮食诱导的高脂血症金黄地鼠,改善其盲肠菌群,实现调节脂质代谢和糖代谢水平。结果表明,高脂饮食诱导后金黄地鼠出现高血脂症状并伴有血糖升高。高剂...针对高脂饮食引起血脂升高这一广泛性问题,本文研究通过紫山药高抗性淀粉(HRS)干预高脂饮食诱导的高脂血症金黄地鼠,改善其盲肠菌群,实现调节脂质代谢和糖代谢水平。结果表明,高脂饮食诱导后金黄地鼠出现高血脂症状并伴有血糖升高。高剂量HRS(1.5 g/100 g bw)干预4周后,内脏器官和周边脂肪质量显著减小,血液中甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白胆固醇(LDL-C)显著降低,高密度脂蛋白胆固醇(HDL-C)显著升高,血糖含量显著降低(P<0.05)。HRS干预后金黄地鼠盲肠中厚壁菌门的数量减少,拟杆菌门和变形菌门的数量增加,代表性优势细菌瘤胃球菌科、毛螺菌科、拟杆菌科S24-7组和梭菌属的丰度增加,有效改善了其盲肠菌群的失衡。展开更多
为探究氧化对羊肉肌原纤维蛋白理化和分子特性的影响,通过对经不同时间氧化的羊肉肌原纤维蛋白的羰基、总巯基、二聚酪氨酸含量和表面疏水性、紫外吸收光谱、内源荧光光谱、傅里叶变换红外光谱、粒径和十二烷基硫酸钠-聚丙烯酰胺凝胶电...为探究氧化对羊肉肌原纤维蛋白理化和分子特性的影响,通过对经不同时间氧化的羊肉肌原纤维蛋白的羰基、总巯基、二聚酪氨酸含量和表面疏水性、紫外吸收光谱、内源荧光光谱、傅里叶变换红外光谱、粒径和十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(sodium dodecyl sulfate-polyacrylamide gel electrophoresis,SDS-PAGE)进行分析,结果表明:随着氧化时间的延长,肌原纤维蛋白羰基、二聚酪氨酸含量和表面疏水性上升,总巯基含量下降,内源荧光强度降低。氧化使肌原纤维蛋白的粒径增大,Zeta电位的绝对值降低。傅里叶变换红外光谱分析表明蛋白质二级结构发生改变,α-螺旋相对含量先增加后降低,无规卷曲相对含量无明显变化,β-折叠相对含量呈现降低趋势,β-转角相对含量则先降低后增加。SDS-PAGE表明蛋白质氧化引起蛋白质分子间交联。胱氨酸含量随着氧化时间延长呈上升趋势,而其他氨基酸含量呈降低趋势。展开更多
This paper investigates the resource scheduling for heterogeneous vehicular networks, where some moving vehicles are selected and scheduled as helping relays to assist information transmission between the roadside inf...This paper investigates the resource scheduling for heterogeneous vehicular networks, where some moving vehicles are selected and scheduled as helping relays to assist information transmission between the roadside infrastructure and other moving vehicles. For such a system, we propose a mobile-service based max-min fairness resource scheduling scheme, where service amount which is more suitable for high mobility scenarios is adopted to characterize the information transmission capacity of the links and the max-min criteria is adopted to meet the fairness requirement of the moving vehicles. Simulation results demonstrate the effectiveness of our proposed scheme. It is shown that our proposed scheme archives higher throughput and better fairness compared with random scheduling scheme and non-relaying scheme.展开更多
文摘针对高脂饮食引起血脂升高这一广泛性问题,本文研究通过紫山药高抗性淀粉(HRS)干预高脂饮食诱导的高脂血症金黄地鼠,改善其盲肠菌群,实现调节脂质代谢和糖代谢水平。结果表明,高脂饮食诱导后金黄地鼠出现高血脂症状并伴有血糖升高。高剂量HRS(1.5 g/100 g bw)干预4周后,内脏器官和周边脂肪质量显著减小,血液中甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白胆固醇(LDL-C)显著降低,高密度脂蛋白胆固醇(HDL-C)显著升高,血糖含量显著降低(P<0.05)。HRS干预后金黄地鼠盲肠中厚壁菌门的数量减少,拟杆菌门和变形菌门的数量增加,代表性优势细菌瘤胃球菌科、毛螺菌科、拟杆菌科S24-7组和梭菌属的丰度增加,有效改善了其盲肠菌群的失衡。
文摘为探究氧化对羊肉肌原纤维蛋白理化和分子特性的影响,通过对经不同时间氧化的羊肉肌原纤维蛋白的羰基、总巯基、二聚酪氨酸含量和表面疏水性、紫外吸收光谱、内源荧光光谱、傅里叶变换红外光谱、粒径和十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(sodium dodecyl sulfate-polyacrylamide gel electrophoresis,SDS-PAGE)进行分析,结果表明:随着氧化时间的延长,肌原纤维蛋白羰基、二聚酪氨酸含量和表面疏水性上升,总巯基含量下降,内源荧光强度降低。氧化使肌原纤维蛋白的粒径增大,Zeta电位的绝对值降低。傅里叶变换红外光谱分析表明蛋白质二级结构发生改变,α-螺旋相对含量先增加后降低,无规卷曲相对含量无明显变化,β-折叠相对含量呈现降低趋势,β-转角相对含量则先降低后增加。SDS-PAGE表明蛋白质氧化引起蛋白质分子间交联。胱氨酸含量随着氧化时间延长呈上升趋势,而其他氨基酸含量呈降低趋势。
基金supported by the Chinese Postdoctoral Science Foundation No. 2015M570937the Open Research Fund of National Mobile Communications Research Laboratory,Southeast University No. 2014D03+2 种基金the National High-Tech R&D Program(863 Program) No.2015AA010301the National Natural Science Foundation of Chinaunder Grant No.61572072the Fundamental Research Funds for the Central Universities "Research on the System of Personalized Education using Big Data"
文摘This paper investigates the resource scheduling for heterogeneous vehicular networks, where some moving vehicles are selected and scheduled as helping relays to assist information transmission between the roadside infrastructure and other moving vehicles. For such a system, we propose a mobile-service based max-min fairness resource scheduling scheme, where service amount which is more suitable for high mobility scenarios is adopted to characterize the information transmission capacity of the links and the max-min criteria is adopted to meet the fairness requirement of the moving vehicles. Simulation results demonstrate the effectiveness of our proposed scheme. It is shown that our proposed scheme archives higher throughput and better fairness compared with random scheduling scheme and non-relaying scheme.
