期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
黄芩汤通过调控内质网应激减轻小鼠溃疡性结肠炎
1
作者 邱建国 邱一桐 +9 位作者 李国荣 张林生 郑雪 姚泳江 王熙丹 黄海阳 张凤敏 苏冀彦 郑学宝 黄晓其 《南方医科大学学报》 CAS CSCD 北大核心 2024年第11期2172-2183,共12页
目的观察黄芩汤对小鼠溃疡性结肠炎(UC)细胞凋亡的影响并探讨其作用机制。方法将雄性Balb/c小鼠随机分为:正常组、模型组、美沙拉嗪组(5-ASA,200 mg/kg)、黄芩汤低、中、高剂量组(HQDL,2.275 g/kg;HQDM,4.55 g/kg;HQDH,9.1 g/kg),8只/... 目的观察黄芩汤对小鼠溃疡性结肠炎(UC)细胞凋亡的影响并探讨其作用机制。方法将雄性Balb/c小鼠随机分为:正常组、模型组、美沙拉嗪组(5-ASA,200 mg/kg)、黄芩汤低、中、高剂量组(HQDL,2.275 g/kg;HQDM,4.55 g/kg;HQDH,9.1 g/kg),8只/组。各组自由饮食,除正常组自由饮用无菌水外,其余各组小鼠自由饮用3%DSS溶液,持续7d以建立UC模型。取结肠组织采用HE、AB-PAS和TUNEL染色分别观察结肠损伤和细胞凋亡情况,采用ELISA法检测炎症因子表达变化;采用Western blotting、免疫组化和qRT-PCR法分别检测肠道化学屏障、机械屏障、内质网应激等相关指标的蛋白或基因表达变化。结果与模型组相比,黄芩汤干预下的UC小鼠,DAI评分和宏观评分下降(P<0.01),TUNEL染色荧光强度下降(P<0.01)。促炎因子IL-6、TNF-α、IL-1β、IL-8表达减少(P<0.01),MUC2和TFF3的基因表达升高(P<0.05),Claudin-1、Occludin和E-cadherin的蛋白表达升高(P<0.05),GRP78、CHOP和Caspase-12的基因和蛋白表达下降(P<0.01)、PERK、eIF2α和IRE1α的磷酸化表达降低(P<0.05),Bcl-2/Bax蛋白表达比例升高(P<0.01)和Caspase-3的蛋白表达降低(P<0.01)。结论黄芩汤能够抑制UC小鼠的细胞凋亡反应并改善肠道屏障功能,其机制可能与PERK和IRE1α信号通路介导的内质网应激有关。 展开更多
关键词 溃疡性结肠炎 黄芩汤 内质网应激 细胞凋亡
下载PDF
Neighborhood Modularization‑based Artificial Bee Colony Algorithm for Disassembly Planning with Operation Attributes 被引量:1
2
作者 Hongfei Guo linsheng zhang +3 位作者 Yaping Ren Leilei Meng Zhongwei Zhou Jianqing Li 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2022年第6期165-177,共13页
The recycling and remanufacturing of end-of-life products are significant for environmental protection and resource conservation.Disassembly is an essential process of remanufacturing end-of-life products.Effective di... The recycling and remanufacturing of end-of-life products are significant for environmental protection and resource conservation.Disassembly is an essential process of remanufacturing end-of-life products.Effective disassembly plans help improve disassembly efficiency and reduce disassembly costs.This paper studies a disassembly planning problem with operation attributes,in which an integrated decision of the disassembly sequence,disassembly directions,and disassembly tools are made.Besides,a mathematical model is formulated with the objective of minimizing the penalty cost caused by the changing of operation attributes.Then,a neighborhood modularization-based artificial bee colony algorithm is developed,which contains a modular optimized design.Finally,two case studies with different scales and complexities are used to verify the performance of the proposed approach,and experimental results show that the proposed algorithm outperforms the two existing methods within an acceptable computational time. 展开更多
关键词 End-of-life products Disassembly planning Artificial bee colony Neighborhood modularization
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部