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| 1 | Special Section:SARS-CoV-2 Preliminary evidence from a multicenter prospective observational study of the safety and efficacy of chloroquine for the treatment of COVID-19显示文摘Effective therapies are urgently needed for the SARS-CoV-2 pandemic.Chloroquine has been proved to have antiviral effect against coronavirus in vitro.In this study,we aimed to assess the efficacy and safety of chloroquine with different doses in COVID-19.In this multicenter prospective observational study,we enrolled patients older than 18 years old with confirmed SARS-CoV-2 infection excluding critical cases from 12 hospitals in Guangdong and Hubei Provinces.Eligible patients received chloroquinephosphate s00 mg,orally,once(half dose)or twice(full dose)daily.Patients treated with non-chloroquine therapy were included as historical controls.The primary endpoint is the time to undetectable viral RNA.Secondary outcomes include the proportion of patients with undetectable viral RNA by day 10 and 14,hospitalization time,duration of fever,and adverse events.A total of 197 patients completed chloroquine treatment,and 176patients were included as historical controls.The median time to achieve an undetectable viral RNA was shorter in chloroquine than in non-chloroquine(absolute difference in medians-6.0 days;95%CI-6.0 to—4.0).The duration of fever is shorter in chloroquine(geometric mean ratio 0.6;95%CIO.5 to 0.8).No serious adverse events were observed in the chloroquine group.Patients treated with half dose experienced lower rate of adverse events than with full dose.Although randomized trials are needed for further evaluation,this study provides evidence for safety and efficacy of chloroquine in COVID-19 and suggests that chloroquine can be a cost-effective therapy for combating the COVID-19 pandemic. | Mingxing Huang Man Li Fei Xiao Pengfei Pang Jiabi Liang Tiantian Tang Shaoxuan Liu Binghui Chen Jingxian Shu Yingying You Yang Li Meiwen Tang Jianhui Zhou Guanmin Jiang Jingfen Xiang Wenxin Hong Songmei He Zhaoqin Wang Jianhua Feng Changqing Lin Yinong Ye Zhilong Wu Yaocai Li Bei Zhong Ruilin Sun Zhongsi Hong Jing Liu Huili Chen Xiaohua Wang Zhonghe Li Duanqing Pei Lin Tian Jinyu Xia Shanping Jiang Nanshan Zhong Hong Shan | 2020 | National Science Review2020，7，9： | 20 |
| 2 | Identification and characterization of BoPUB3: a novel interaction protein with S-locus receptor kinase in Brassica oleracea L.显示文摘Armadillo repeat containing 1 (ARC1) is phosphorylated by S-locus receptor kinase (SRK) and functions as a positive regulator in self-incompatibility response of Brassica. However, ARC1 only causes partial breakdown of the self-incompatibility response, and other SRK downstream factors may also participate in the self-incompatibility signaling pathway. In the present study, to search for SRK downstream targets, a plant U-box protein 3 (BoPUB3) was identified from the stigma of Brassica oleracea L. BoPUB3 was highly expressed in the stigma, and its expression was increased with the stigma development and reached to the highest level in the mature-stage stigma. BoPUB3, a 76.8-kDa protein with 697 amino acids, is a member of the PUB-ARM family and contains three domain characteristics of BoARC1, including a U-box N-terminal domain, a U-box motif, and a C-terminal arm repeat domain. The phylogenic tree showed that BoPUB3 was close to BoARC1. The synteny analysis revealed that B. oleracea chromosomal region containing BoPUB3 had high synteny with the Arabidopsis thaliana chromosomal region containing AtPUB3 (At3G54790). In addition, the subcellular localization analysis showed that BoPUB3 primarily localized in the plasma membrane and also in the cytoplasm. The combination of the yeast two-hybrid and in vitro binding assay showed that both BoPUB3 and BoARC1 could interact with SRK kinase domain, and SRK showed much higher level of β-galactosidase activity in its interaction with BoPUB3 than with BoARC1. These results implied that BoPUB3 is a novel interactor with SRK, which lays a basis for further research on whether PUB3 participates in the self-incompatibility signaling pathway. | Songmei Shi Qiguo Gao Tonghong Zuo Zhenze Lei Quanming Pu Yukui Wang Guixi Liu Xinhua He Xuesong Ren Liquan Zhu | 2019 | Acta Biochimica et Biophysica Sinica2019，51，7： | 2 |
| 3 | Physiological Dynamics and Transcriptomic Analysis of Cut Roses‘Carola’Treated with KNO_(3)显示文摘The consumption of cut roses(Rosa hybrida)has always ranked first in the world.However,it is vulnerable to rapid petal and leaf wilting due to leaf stomatal water loss,which seriously affects its ornamental quality and economic value.Stomatal movement,a key in plant physiological processes,is influenced by potassium and nitrate.Advancing comprehension of its physiological and molecular mechanism holds promise for preserving the freshness of cut roses.This study observed the impacts of different concentrations of KNO_(3) vase treatments on stomatal opening and water loss in cut rose‘Carola’leaves,as well as their transcriptional responses to KNO_(3).Water loss rates were influenced by KNO_(3) concentrations,with the 25 and 75 mmol/L treatments exhibiting the highest water loss rates.The stomatal aperture reached its widest value when treated with 75 mmol/L KNO_(3).Transcriptional sequencing analysis was performed to identify differentially expressed genes(DEGs)of which 5456 were up-regulated,and 6607 were down-regulated associated with photosynthesis,starch and sucrose metabolism,metabolic pathways,plant-pathogen interaction,plant hormone signal transduction,and related pathways.246 DEGs were selected related to response to KNO_(3) treatment,of which gene ontology(GO)enrichment were nitrate and terpenoid metabolism,ion transport,and response to stimuli.Further heatmap analysis revealed that several genes related to nitrate transport a metabolism,K+transport,vacuoles,and aquaporin were in close association with the response to KNO_(3) treatment.Weighted gene co-expression network analysis(WGCNA)revealed that hub genes,including LAX2,TSJT1,and SCPL34 were identified in turquoise,black,and darkgreen module.Transcription factors such as NAC021,CDF3,ERF053,ETR2,and ARF6 exhibited regulatory roles in the response to KNO_(3) treatment under light conditions.These findings provide valuable insights into the physiological and molecular mechanisms underlying the response of cut rose leaves to KNO_(3) treatment. | Songmei Liu Yuheng Wu Hongmei Li Dongli Cai Huiling Liang Changchun Ye Shenggen He | 2023 | Phyton-International Journal of Experimental Botany2023，92，12： | 0 |
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