维普中文期刊产品整合服务
7篇 您的检索式:作者名="Qi Hongjing"
    题名 作者 年代 出处 被引量
1Transient acquisition of cross-species infectivity during the evolution of SARS-CoV-2显示文摘Since the coronavirus disease 2019(COVID-19)pandemic began,its causative agent,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has spread worldwide.During the global transmission of SARS-CoV-2,mutations in the viral genome have gradually accumulated and have led to the emergence of variants.These emerging variants;including 501Y.V1,501Y.V2 and 501Y.V3(also called the alpha,beta and gamma variants,respectively),rapidly became the predominant epidemic strains and subsequently spread worldwide.Qi Chen Xing-Yao Huang Meng-Xu Sun Rui-Ting Li Hongjing Gu Ying Tian Rong-Rong Zhang Dan Luo Chao Zhou Yifei Zhang Tianshu Cao Na-Na Zhang Yong-Qiang Deng Xiao-Feng Li Cheng-Feng Qin 2021National Science Review2021,8,11:3
2A new gain-of-function OsGS2/GRF4 allele generated by CRISPR/Cas9 genome editing increases rice grain size and yield显示文摘Grain size is one of the most important factors affecting rice grain quality and yield,and attracts great attention from molecular biologists and breeders.In this study,we engineered a CRISPR/Cas9 system targeting the miR396 recognition site of the rice GS2 gene,which encodes growth-regulating factor 4(OsGRF4)and regulates multiple agronomic traits including grain size,grain quality,nitrogen use efficiency,abiotic stress response,and seed shattering.In contrast to most previous genome editing efforts in which indel mutations were chosen to obtain null mutants,a mutant named GS2^(E) carrying an in-frame 6-bp deletion and 1-bp substitution within the miR396-targeted sequence was identified.GS2^(E) plants showed increased expression of GS2 in consistent with impaired repression by miR396.As expected,the gain-of-function GS2^(E) mutant exhibited multiple beneficial traits including increased grain size and yield and bigger grain length/width ratio.Thousand grain weight and grain yield per plant of GS2^(E) plants were increased by 23.5%and 10.4%,respectively.These improved traits were passed to hybrids in a semidominant way,suggesting that the new GS2^(E) allele has great potential in rice improvement.Taken together,we report new GS2 germplasm and describe a novel gene-editing strategy that can be widely employed to improve grain size and yield in rice.This trait-improvement strategy could be applied to other genes containing miRNA target sites,in particular the conserved miR396-GRF/GIF module that governs plant growth,development and environmental response.Wenshu Wang Weipeng Wang Yanlin Pan Chao Tan Hongjing Li Ya Chen Xingdan Liu Jing Wei Nian Xu Yu Han Han Gu Rongjian Ye Qi Ding Chonglie Ma 2022The Crop Journal2022,10,4:3
3Rice In Vivo RNA Structurome Reveals RNA Secondary Structure Conservation and Divergence in Plants显示文摘RNA 第二等的结构在基因规定起一个关键作用。瑞斯(Oryza sativa ) 是在世界上的最重要的食物庄稼之一。然而,在米饭的 RNA 结构几乎没被学习。这里,我们成功地产生了在 ? 在米饭的 vivo Structure-seq 图书馆。我们发现 mRNAs 的结构的灵活性可能与生物功能的动力学联系。更高的 N 6-methyladenosine (m 6 一) 修正趋于在 3 UTR 有更少的 RNA 结构,而 GC 内容显著地不影响在 ? 维持象翻译那样的有效生物过程的 vivo mRNA 结构。在米饭和 Arabidopsis 之间的 RNA structurome 的比较分析揭示了内容不导致的那更高的 GC 更强壮的结构和更少 RNA 结构的灵活性。而且,我们发现了在顺序和在米饭和 Arabidopsis 之间的 orthologs 的结构保存之间的弱关联。顺序并且在的保存和分叉 ? vivo RNA 结构对应于多样、特定的生物过程。我们的结果显示那 RNA 第二等的结构可能把选择的分开的层提供给在 monocot 和 dicot 之间的顺序。因此,我们的学习暗示那 RNA 结构在各种各样的生物进程不同地演变在被子植物进化期间在开发和 adaptational 灵活性维持坚韧性。Hongjing Deng Jitender Cheema Hang Zhang Hugh Woolfenden Matthew Norris Zhenshan Liu Qi Liu Xiaofei Yang Minglei Yang Xian Deng Xiaofeng Cao Yiliang Ding 2018Molecular Plant2018,11,4:2
4Treatment Strategy for Chylothorax after Resection for Lung Cancer—16 Case Report显示文摘OBJECTIVE To review the experience of iatrogenic chylothorax after pul- monary resections for lung cancer and to evaluate our treatment strategy. METHODS From July 1997 through December 2003, a total of 1,546 pa- tients underwent pulmonary resection (at least lobectomy) and systematic mediastinal lymph node dissection for lung cancer in our division. Sixteen patients had a postoperative chylothorax complication. All of these pa- tients in this study were conservatively treated (closed drainage) with complete oral intake cessation and total parenteral nutrition. RESULTS All patients had their condition cured with conservative treat- ment. The duration of the treatment was 6-21 days. The patients were given normal diet for a mean of 9.8 days after chylothorax diagnosis. CONCLUSION If the correct treatment strategy is selected, most cases of chylothorax after pulmonary resection with systematic mediastinal lymph node dissection can be cured with a conservative strategy.Hongjing Jiang Changli Wang Zhenqing Zhao Xiaolin Li Doliong Qi Liqun Gong 2006Chinese Journal of Clinical Oncology2006,3,3:1
5显示文摘Qi Hongjing Zhang Yuhui 2007Surface and Coatings Technology2007,201,:1
6Cellular chemokine CCL18 increases matrix metalloproteinases expression and promotes ovarian cancer cell invasion and metastasis in vivo显示文摘Objective:To study the effect of cell chemokine(CC motif)ligand 18(CCL18)on ovarian cancer proliferation and metastasis.Methods:This study first analyzed the effects of overexpression of CCL18 on the growth in a subcutaneous ovarian cancer xenografts mouse model.Real-time quantitative PCR was used to detect the expression of matrix metalloproteinases(MMPs)in xenografts tissues.Then,an ovarian cancer orthotropic xenografts model was used to access the effect of CCL18 on ovarian cancer metastasis.Results:Over expressing CCL18 in SKOV3 cells did not significantly promote the tumor growth of subcutaneous xenografts.But the mRNA levels of MMP1,MMP7,MMP11 and MMP15 were significantly increased(P <0.05).The mRNA level of MMP12 was not changed(P >0.05).In orthotopic xenografts ovarian cancer mouse model,metastasis appeared in more organs in CCL 18 overexpressed SKOV3 cells than GFP/SKOV3 cells.Conclusion:CCL18 increased the expression of MMPs in ovarian cancer cells and promoted metastasis of ovarian cancer cells in vivo.Yan Feng Qiaoyun Yin Hongjing Yu Lijun Shi Qi Wang 2018广西医科大学学报2018,35,9:0
7Preparation of high performance YGdBCO films by low fluorine TFA-MOD process显示文摘YBCO films doped with different contents of gadolinium(Gd) were prepared by the low-fluorine(low-F)trifluoroacetate metal-organic deposition(MOD) method.The effects of flow rate and holding time of the firing(crystallization) stage on the superconducting properties of YxGd1-xBa2 Cu3 O7-δ(YGdBCO) films were investigated.The phase formation and texture were characterized by the X-ray diffraction(XRD),which indicate that severe degradation of the microstructure will be induced with the inappropriate flow rate.The surface morphology and element distribution were investigated by the scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS).The results show that increasing the holding time of the firing stage is effective for the further decomposition of residual impurity phase on the surface.The mechanisms of the phase and surface evolution are also discussed.Finally,a high critical current density(Jc) value of 5.4 MA/cm2 was achieved in the Y0.9Gd0.1BCO film fabricated by the cooperative control of the flow rate and holding time of the firing stage,which are contributed to the formation of excellent texture,homogeneous microstructure and dense surface of the YGdBCO films.Zebin Dong Fazhu Ding Hua Zhang Hongjing Shang Daxing Huang Wenjuan Xu Taiguang Li Qi Zou Hongwei Gu 2020Journal of Rare Earths2020,38,7:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费