The effectiveness and safety of HuangQiXiXin decoction for cough variant asthma:protocol for a systematic review

Objective:A comprehensive and updated systematic review is needed to evaluate the effectiveness and safety of HuangQiXiXin decoction(HQXXD)for cough variant asthma(CVA).The aim of this systematic review protocol is to comprehensively assess the effectiveness and safety of HQXXD for CVA.Methods:An overall search for studies in main English and Chinese electronic databases from their inception to January 2021 will be performed.Randomized controlled trials regarding HQXXD for CVA will be included.We will use RevMan 5.3 software to perform statistical analysis and meta-analysis.Results:The findings of this systematic review will be disseminated through peer-reviewed publications.Conclusion:The systematic review will provide more evidence regarding the effectiveness and safety of HQXXD for CVA.

Smart phosphorescence from solid to water through progressive assembly strategy based on dual phosphorescent sources

Developing smart room-temperature phosphorescence(RTP)materials with facile and efficient strategies have attracted increasing attention.Herein,tunable RTP materials with two phosphorescent sources and stepwise enhanced phosphorescence in water are obtained through an in-situ self-assembly strategy based on the sensitization of phosphors by trimesic acid(TMA)through simple doping and the rigidification of phosphors by hydrogen-bonded organic frameworks(HOFs).As expected,doped TMA+phosphors simultaneously promote the RTP emission of phosphors and maintain TMA phosphorescence.In-situ assembled HOF(MATMA)@phosphors facilitate smart RTP emission in water due to the coexistence of phosphorescent HOF(MA-TMA)host and phosphors guest.Additionally,such RTP materials with good processability demonstrate the application potential in information security,benefitting from their varied afterglow lifetimes and easy luminous recognition in the darkness.This work will inspire the design of dual phosphorescent source RTP systems and provide new strategies for the development of smart RTP materials in water.

Construction of potential idiopathic pulmonary fibrosis related microRNA and messenger RNA regulatory network

To the Editor:Idiopathic pulmonary fibrosis(IPF)is a kind of lung disease characterized by chronic and progressive pulmonary fibrosis with unknown etiology,whose pathological manifestation is usual interstitial pneumonia.111 However,the prognosis of IPF was still poor,and the median survival time after diagnosis was about 2 to 3 years Therefore,it seems important to seek and develop an effective therapeutic modality for IPF.Through base pairs of intramolecular complementary sequences of messenger RNA(mRNA),microRNA(miRNA)plays a key role in RNA silencing and post-transcriptional gene expression regulation.

全反式维甲酸的生成是视网膜中全反式视黄醛的一种解毒代谢途径（英文）

目的:探讨视网膜中全反式视黄醛(atRal)能否代谢生成全反式维甲酸(atRA),并比较两者对视网膜色素上皮细胞(RPE)的细胞毒性作用,以阐明atRA生成的意义。创新点:建立atRA的超高效液相串联质谱(UPLCMS/MS)检测方法,并证明atRA的生成是视网膜中atRal的重要解毒代谢通路。方法:利用UPLC-MS/MS分别检测猪眼神经视网膜及RPE层中atRA的含量;利用ARPE-19细胞系模拟atRal在RPE中累积,用UPLC-MS/MS检测细胞内及培养基中atRA的含量,并用定量聚合酶链反应(qP CR)检测CYP26b1的表达;利用CCK8、DCFH-DA染色、qP CR、westernblot等方法对比等浓度atRA和atRal在RPE细胞中所诱导的细胞毒性、氧化应激、凋亡相关蛋白表达水平;用UPLC-MS/MS检测视网膜atRal清除障碍的ABCA4-/-RDH8-/-小鼠眼球中atRA及全反式视黄醇。结论:明确atRA在正常视网膜中能够代谢产生;证明其形成有利于RPE细胞中累积的atRal迅速代谢消除;其自身诱导细胞氧化应激的能力显著低于atRal,因而能显著减弱后者的细胞毒性。