NLRP3炎性反应小体在缺血再灌注急性肾损伤大鼠肾组织中的表达研究

目的:研究NLRP3炎性反应小体在缺血再灌注急性肾损伤大鼠肾组织中的表达。方法:选取SD雄性大鼠14只,平均分为缺血再灌注组(A组)和假手术组(B组),对比两组之间血肌酐、尿素氮变化及NLRP3表达的差异情况。结果:A组大鼠血肌酐、尿素氮水平明显高于B组大鼠,差异有统计学意义(P<0.05);免疫组化显示缺血再灌注急性肾损伤组大鼠肾小管上皮细胞NLRP3的表达显著增强;病理学检查显示缺血再灌注组大鼠肾小管间质损伤较严重。结论:缺血再灌注急性肾损伤会伴随血肌酐水平升高以及肾组织NLRP3表达增强。厦门市科技局2016科技惠民项目[项目编号:3502Z20164060

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies