维普中文期刊产品整合服务
65篇 您的检索式:作者名="Chan Ning"
    题名 作者 年代 出处 被引量
1SlMYB75,an MYB-type transcription factor,promotes anthocyanin accumulation and enhances volatile aroma production in tomato fruits显示文摘Genetic manipulation of genes to upregulate specific branches of metabolic pathways is a method that is commonly used to improve fruit quality.However,the use of a single gene to impact several metabolic pathways is difficult.Here,we show that overexpression of the single gene SlMYB75(SlMYB75-OE)is effective at improving multiple fruit quality traits.In these engineered fruits,the anthocyanin content reached 1.86mg g−1 fresh weight at the red-ripe stage,and these SlMYB75-OE tomatoes displayed a series of physiological changes,including delayed ripening and increased ethylene production.In addition to anthocyanin,the total contents of phenolics,flavonoids and soluble solids in SlMYB75-OE fruits were enhanced by 2.6,4,and 1.2 times,respectively,compared to those of wild-type(WT)fruits.Interestingly,a number of aroma volatiles,such as aldehyde,phenylpropanoid-derived and terpene volatiles,were significantly increased in SlMYB75-OE fruits,with some terpene volatiles showing more than 10 times higher levels than those in WT fruits.Consistent with the metabolic assessment,transcriptomic profiling indicated that the genes involved in the ethylene signaling,phenylpropanoid and isoprenoid pathways were greatly upregulated in SlMYB75-OE fruits.Yeast one-hybrid and transactivation assays revealed that SlMYB75 is able to directly bind to the MYBPLANT and MYBPZM cis-regulatory elements and to activate the promoters of the LOXC,AADC2 and TPS genes.The identification of SlMYB75 as a key regulator of fruit quality attributes through the transcriptional regulation of downstream genes involved in several metabolic pathways opens new avenues towards engineering fruits with a higher sensory and nutritional quality.Wei Jian Haohao Cao Shu Yuan Yudong Liu Juanfang Lu Wang Lu Ning Li Jianhui Wang Jian Zou Ning Tang Chan Xu Yulin Cheng Yanqiang Gao Wanpeng Xi Mondher Bouzayen Zhengguo Li 2019Horticulture Research2019,6,1:39
2Hydrogen sulfide regulates abiotic stress tolerance and biotic stress resistance in Arabidopsis显示文摘Hydrogen sulfide(H_2S) is an important gaseous molecule in various plant developmental processes and plant stress responses.In this study,the transgenic Arabidopsis thaliana plants with modulated expressions of two cysteine desulfhydrases,and exogenous H_2S donor(sodium hydrosulfide,NaHS) and H_2S scavenger(hypotaurine,HT) pre-treated plants were used to dissect the involvement of H_2S in plant stress responses.The cysteine desulfhydrases overexpressing plants and NaHS pre-treated plants exhibited higher endogenous H_2S level and improved abiotic stress tolerance and biotic stress resistance,while cysteine desulfhydrases knockdown plants and HT pre-treated plants displayed lower endogenous H_2S level and decreased stress resistance.Moreover,H_2S upregulated the transcripts of multiple abiotic and biotic stress-related genes,and inhibited reactive oxygen species(ROS) accumulation.Interestingly,MIR393-mediated auxin signaling including MIR393a/b and their target genes(TIR1,AFB1,AFB2,and AFB3) was transcriptionally regulated by H_2S,and was related with H_2S-induced antibacterial resistance.Moreover,H_2S regulated 50 carbon metabolites including amino acids,organic acids,sugars,sugar alcohols,and aromatic amines.Taken together,these results indicated that cysteine desulfhydrase and H_2S conferred abiotic stress tolerance and biotic stress resistance,via affecting the stress-related gene expressions,ROS metabolism,metabolic homeostasis,and MIR393-targeted auxin receptors.Haitao Shi Tiantian Ye Ning Han Hongwu Bian Xiaodong Liu Zhulong Chan 2015Journal of Integrative Plant Biology2015,57,7:26
3Evaluation of a simulation-based workshop on clinical performance for emergency physicians and nurses显示文摘BACKGROUND: Simulation-based medical education has been growing rapidly and becomes one of the most popular teaching methods for improving patient safety and patient care. The Simulation Subcommittee of the Hong Kong College of Emergency Medicine organized an educational program emphasizing the team training, clinical decision-making and communication skills. This study aimed to evaluate the attitude of the participants toward a new training program and the change in the knowledge on clinical performance in emergency physicians and nurses after attending the educational program.METHODS: A course evaluation form was filled in by the participants at the end of the workshop. An assessment of 20 multiple-choice questions with 5 options was administered to the participants before and after the 2-day simulation-based training workshop.RESULTS: A total of 72 doctors and nurses working in the Accident and Emergency Department were enrolled. The average pretest and posttest scores were 12 and 14.3 respectively. The percentage improvement in the mean score of the pretest and posttest was 11.5%. The Chi-square test showed signifi cant improvement in the pretest and posttest score grading(P=0.00). Paired t-test revealed signifi cant difference between the mean scores of the pretest and posttest(P=0.00).CONCLUSIONS: Participants had positive attitude toward this new training program. Significant improvement of the knowledge on clinical performance in healthcare professionals in the Accident and Emergency Department was observed after the participation in this simulation-based educational program.Chi Ho Chan Tung Ning Chan Man Cheuk Yuen Wai Kit Tung 2015World Journal of Emergency Medicine2015,6,1:14
4Dapper1 promotes autophagy by enhancing the Beclinl -Vps34-Atg14L complex formation显示文摘Benvu Ma Weipeng Cao Wenxia Li Chan Gao Zhen Qi Yan Zhao Jun Du Hua Xue Junya Peng Jun Wen Hua Chen Yuanheng Ning Lei Huang Hong Zhang Xiang Gao Li Yu Ye-Guang Chen 2014Cell Research2014,24,8:12
5OsELF3-2, an Ortholog of Arabidopsis ELF3, Interacts with the E3 Ligase APIP6 and Negatively Regulates Immunity against Magnaporthe oryzae in Rice显示文摘Dear Editor, The ubiquitin proteasome system (UPS) is a highly regulated mechanism of intracellular protein degradation in eukaryotes.The UPS comprises three key enzymes:ubiquitin-activating enzyme E1,ubiquitin-conjugating enzyme E2,and ubiquitin ligase enzyme E3.There are nearly 1500 E3 ligase genes in rice and Arabidopsis genomes that target substrates for many biological processes for plant growth and tolerance to abiotic and biotic stresses.Yuese Ning Xuetao Shi Ruyi Wang Jiangbo Fan Chan Ho Park Chongyang Zhang Ting Zhang Xinhao Ouyang Shigui Li Guo-Liang Wang 2015Molecular Plant2015,8,11:8
6Two VOZ transcription factors link an E3 ligase and an NLR immune receptor to modulate immunity in rice显示文摘Nucleotide-binding leucine-rich repeat(NLR)proteins play critical roles in plant immunity.However,how NLRs are regulated and activate defense signaling is not fully understood.The rice(Oryza sativa)NLR receptor Piz-t confers broad-spectrum resistance to the fungal pathogen Magnaporthe oryzae and the RING-type E3 ligase AVRPIZ-T INTERACTING PROTEIN 10(APIP10)negatively regulates Piz-t accumulation.In this study,we found that APIP10 interacts with two rice transcription factors,VASCULAR PLANT ONEZINC FINGER 1(OsVOZ1)and OsVOZ2,and promotes their degradation through the 26S proteasome pathway.OsVOZ1 displays transcriptional repression activity while OsVOZ2 confers transcriptional activation activity in planta.The osvoz1 and osvoz2 single mutants display modest but opposite M.oryzae resistance in the non-Piz-t background.However,the osvoz1 osvoz2 double mutant exhibits strong dwarfism and cell death,and silencing of both genes via RNA interference also leads to dwarfism,mild cell death,and enhanced resistance to M.oryzae in the non-Piz-t background.Both OsVOZ1 and OsVOZ2 interact with Piz-t.Double silencing of OsVOZ1 and OsVOZ2 in the Piz-t background decreases Piz-t protein accumulation and transcription,reactive oxygen species-dependent cell death,and resistance to M.oryzae containing AvrPiz-t.Taken together,these results indicate that OsVOZ1 and OsVOZ2 negatively regulate basal defense but contribute positively to Piz-t-mediated immunity.Jiyang Wang Ruyi Wang Hong Fang Chongyang Zhang Fan Zhang Zeyun Hao Xiaoman You Xuetao Shi Chan Ho Park Kangyu Hua Feng He Maria Bellizzi Kieu Thi Xuan Vo Jong-Seong Jeon Yuese Ning Guo-Liang Wang 2021Molecular Plant2021,14,2:8
7Compliance among infants exposed to hepatitis B virus in a post-vaccination serological testing program in four provinces in China显示文摘Background:Mother to child transmission of hepatitis B virus(HBV)remains the most common form of HBV infection in China.Prevention of HBV vertical transmission involves timely administration of the complete hepatitis B vaccine(HepB)series and hepatitis B immunoglobulin.Post-vaccination serological testing(PVST)is utilized to determine an infant's outcome after HBV exposure and completion of HepB series.We aim to determine the frequency of compliance with a PVST testing cascade for HBV infected mothers and analyze factors associated with infant lost to follow up(LTFU).Methods:We conducted a retrospeaive cohort review of previously collected data in Fujian,Jiangxi,Zhejiang and Chongqing provinces in China from 1 June 2016-31 December 2017.The study population included all HBV-exposed infants and their mothers.SAS software was used for statistical analyses.Bivariate and multivariate regression analyses(presented in odds ratio[OR]with 95%confidence intervals[CI])were used to compare the proportional differences of factors associated with PVST not being completed.Results:Among enrolled 8474 target infants,40%of them transferred out of the study provinces without further information and 4988 were eligible for PVST.We found 20%(994)of infants were not compliant with the testing cascade:55%of LTFU occurred because parents refused venous blood sample collection or failure of sample collection in the field,16%transferred out after 6 months of age,and 10%of families chose to have independent,confidential PVST completed without reporting results.High PVST noncompliance rates were more likely to be from Fujian(aOR=17.0,95%CI:9.7-29.9),Zhejiang(aOR=5.7,95%Cl:3.2-10.1)and Jiangxi(aOR=1.9,95%CI:1.0-3.4),and from HBV e antigen positive mother(aOR=1.2,95%CI:1.1-1.4).Conclusions:This study found that the LTFU rate reached 20%in PVST program,which was a significant problem.We recommend implementing a national elearonic information system for tracking HBV at risk mother-infant pairs;encourage further research in developing a less invasive means of completing PVST,and take effective measures nationally to reduce HBV stigma.Without reducing the loss to follow up rate among infants eligible for PVST,elimination of vertical HBV transmission will be impossible.Hui Zheng Guo-Min Zhang Po-Lin Chan Fu-Zhen Wang Lance Everett Rodewald Ning Miao Xiao-Jin Sun Zun-Dong Yin Jeffrey Edwards Hua-Qing Wang 2019Infectious Diseases of Poverty2019,8,4:5
8Tetramethylpyrazine stimulates cystic fibrosis transmembrane conductance regulator-mediated anion secretion in distal colon of rodents显示文摘AIM: To investigate the effect of tetramethylpyrazine (TMP), an active compound from Ligustiun Wollichii Franchat, on electrolyte transport across the distal colon of rodents and the mechanism involved.METHODS: The short-circuit current (ISC) technique in conjunction with pharmacological agents and specific inhibitors were used in analyzing the electrolyte transport across the distal colon of rodents. The underlying cellular signaling mechanism was investigated by radioimmunoassay analysis (RIA) and a special mouse model of cystic fibrosis.RESULTS: TMP stimulated a concentration-dependent rise in ISC, which was dependent on both Cl- and HCO3-, and inhibited by apical application of diphenylamine-2,2'-dicarboxylic acid (DPC) and glibenclamide, but resistant to 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid disodium salt hydrate (DIDS). Removal of Na+ from basolateral solution almost completely abolished the ISC response to TMP, but it was insensitive to apical Na+ replacement or apical Na+channel blocker, amiloride. Pretreatment of colonic mucosa with BAPTA-AM, a membrane-permeable selective Ca2+chelator, did not significantly alter the TMP-induced ISC. No additive effect of forskolin and 3-isobutyl-1-methylxanthine (IBMX) was observed on the TMP-induced ISc, but it was significantly reduced by a protein kinase A inhibitor, H89.RIA results showed that TMP (1 mmol/L) elicited a significant increase in cellular cAMP production, which was similar to that elicited by the adenylate cyclase activator, forskolin (10 μmol/L). The TMP-elicited ISC as well as forskolin- or IBMX-induced ISC were abolished in mice with homozygous mutation of the cystic fibrosis transmembrane conductance regulator (CFTR) presenting defective CFTR functions and secretions.CONCLUSION: TMP may stimulate cAMP-dependent and CFTR-mediated Cl- and HCO3- secretion. This may have implications in the future development of alternative treatment for constipation.Qiong He Jin-Xia Zhu Ying Xing Lai-Ling Tsang Ning Yang Dewi Kenneth Rowlands Yiu-Wa Chung Hsiao-Chang Chan 2005World Journal of Gastroenterology2005,11,27:4
9Tumor Suppressor Functions of miR-133a in Colorectal Cancer显示文摘Yujuan Dong Junhong Zhao Chung-Wah Wu Lijing Zhang Xiaodong Liu Wei Kang Wing-Wah Leung Ning Zhang Francis K.L. Chan Joseph J.Y. Sung Simon S.M. Ng Jun Yu 2013Molecular Cancer Research2013,,9:3
10PIWIL1 governs the crosstalk of cancer cell metabolism and immunosuppressive microenvironment in hepatocellular carcinoma显示文摘Altered energy metabolism of cancer cells shapes the immune cell response in the tumor microenvironment that faclitates tumorprogression.Herein,we reported the novel of tumor cell-expressed Piwi Like RNA-Mediated Gene Silencing 1(PWL1)in mediatingthe crosstlk of fatty acid metabolism and immune response of human hepatocellular carcinoma(HCC).PlWIL1 expression in HCCwas increased compared to normal hepatic tissues and was positively correlated with the proliferation rate of HCC cell ines.PIWL1overexpression accelerated in vitro proliferation and in vivo growth of HCC tumors,while PIWL1 knockdown showed opositeeffects.PIWL1 increased oxygen consumption and energy production via fatty acid metabolism without altering aerobic glycolysis.lnhibition of fatty acid metablism abolished PWIL1-induced HCC prolferation and growth.RNA-seq analysis revealed that immunesystem regulation might be involved,which was echoed by the experimental observation that PIWL1-overexpressing HCC cellsattracted myeloid-derived suppressor cells(MDSCs)into the tumor microenvironment.MDSCs depletion reduced the prolferationand growth of PlWIL1-overexpressing HCC tumors.Complement C3,whose secretion was induced by PIWL1 in HCC cells,mediatesthe interaction of HCC cells with MDSCs by activated p38 MAPK signaling in MDSCs,which in turn initiated expression of immunosuppressive cytokine L10.Neutralizing lL10 secretion reduced the immunosuppressive activity of MDSCs in the microenvironment of PIWL1-overexpressing HCC.Taken together,our study unraveled the critical role of PIWL1 in initiating theinteraction of cancer cell metabolism and immune cell response in HCC.Tumor cell-expressed PlIWL1 may be a potential target forthe devellopment of novel HCC treatment.Ning Wang Hor-Yue Tan Yuanjun Lu Yau-Tuen Chan Di Wang Wei Guo Yu Xu Cheng Zhang Feiyu Chen Guoyi Tang Yibin Feng 2021Signal Transduction and Targeted Therapy2021,6,3:2
11Recent progress in quantitative analysis of DNA adducts of nephrotoxin aristolochic acid显示文摘Aristolochic acid (AA), a mixture of structure-related nitrophenanthrene carboxylic acid derivatives derived from Aristolochia spp, is associated with nephrotoxin and carcinogen. AA-DNA adducts induced by reductive metabolic activation of AA were detected in tissues of animals and in patients exposed to AA. The DNA adducts were generally used as biomarkers in toxicological study of AA. In this short review, quantitative analysis of AA-DNA adducts in various in vitro and in vivo systems by using 32P-postlabelling assay, HPLC-UV, HPLC-radiation monitor, HPLC-FLD, HPLC-ESI/MS and UPLC-MS/MS methods is discussed. The distribution of AA-DNA adducts in various tissues is also summarized.YUE Hao CHAN Wan YU KongJie GUO Lin LIU Ning LIU HuWei CAI ZongWei 2009Science China Chemistry2009,52,10:2
12General Mandelbrot Sets and Julia Sets with color symmetry from equivalent mappings of the modular group 显示文摘Chung K W Chan H S Y Chen Ning 2000Computer & Graphics2000,24,6:1
13Theory of secure network coding显示文摘Cai Ning Chan T 2011IEEE Journals & Magazines2011,57,:1
14Diabetes in China: a societal so- lution for a personal challenge 显示文摘Chan JC Zhang Y Ning G 2014Lancet Diabetes Endocrinol2014,2,12:1
15Discovering rules for water demand prediction:an enhanced roughset approach显示文摘 SHAN Ning CHAN C 1996Engng Applic Artif Intell1996,9,6:1
16Discoveringrules for water demand prediction: An enhanced rough-setapproach显示文摘Aijun An Ning Shan Christine Chan 1996Engineering Applications of ArtificialIntelligence1996,9,6:1
17Diabetes in China:a societal solution for a personal challenge显示文摘Chan JC Zhang Y Ning G 2014Lancet Diabetes Endocrinol2014,2,12:1
18The dual effects of ethylene on the negative gravicurvature of arabidopsis inflorescence, an intriguing action model for the plant hormone ethylene显示文摘Ethylene was found to alter the shoot gravitropic response a century ago. However, its actual effects remained controversial over the century. In the present study, we investigated the effects of ethylene on the gravitropic response of Arabidopsis inflorescence and discovered that although the intact Arabidopsis inflorescence bent upward at the rate of 43° ±3°/h in the first 1.5 h under the given control growth conditions, it bent upward at a rate of 20°±3° and 64°±14°/h in the presence of exogenous ethylene if the plants were pretreated for 0.5 and 12 h, respectively, before the initiation of gravistimulation. The increase in gravicur-vature rate is proportional to the length of ethylene pre-treatment. The minimum ethylene pretreatment time required for achieving the maximum curvature rate is 10 -11 h with removal of exogenous ethylene. The stimulatory effect of ethylene on the inflorescence gravicurvature requires a latent period of time (1h) to become measurable. In contrast, the inhibitoryLU Bingwen PEI Lai Kwan CHAN Wai-Kin ZHANG Hong ZHU Guang LI Jiayang LI Ning 2001Chinese Science Bulletin2001,46,4:1
19Pancreatic melatonin enhances anti-tumor immunity in pancreatic adenocarcinoma through regulating tumor-associated neutrophils infiltration and NETosis显示文摘Tumor microenvironment contributes to poor prognosis of pancreatic adenocarcinoma(PAAD)patients.Proper regulation could improve survival.Melatonin is an endogenous hormone that delivers multiple bioactivities.Here we showed that pancreatic melatonin level is associated with patients'survival.In PAAD mice models,melatonin supplementation suppressed tumor growth,while blockade of melatonin pathway exacerbated tumor progression.This anti-tumor effect was independent of cytotoxicity but associated with tumor-associated neutrophils(TANs),and TANs depletion reversed effects of melatonin.Melatonin induced TANs infiltration and activation,therefore induced cell apoptosis of PAAD cells.Cytokine arrays revealed that melatonin had minimal impact on neutrophils but induced secretion of Cxcl2 from tumor cells.Knockdown of Cxcl2 in tumor cells abolished neutrophil migration and activation.Melatonin-induced neutrophils presented an N1-like anti-tumor phenotype,with increased neutrophil extracellular traps(NETs)causing tumor cell apoptosis through cell-to-cell contact.Proteomics analysis revealed that this reactive oxygen species(ROS)-mediated inhibition was fueled by fatty acid oxidation(FAO)in neutrophils,while FAO inhibitor abolished the anti-tumor effect.Analysis of PAAD patient specimens revealed that CXCL2 expression was associated with neutrophil infiltration.CXCL2,or TANs,combined with NET marker,can better predict patients'prognosis.Collectively,we discovered an anti-tumor mechanism of melatonin through recruiting N1-neutrophils and beneficial NET formation.Yau-tuen Chan Hor-yue Tan Yuanjun Lu Cheng Zhang Chien-shan Cheng Junyu Wu Ning Wang Yibin Feng 2023Acta Pharmaceutica Sinica B2023,13,4:1
20A centralized-light-source WDM access network utilizing inverse-RZ downstream signal with upstream data remodulation显示文摘Ning Deng Chun-Kit Chan Lian-Kuan Chen 2006Optical Fiber Technology2006,,1:1
返回顶部 每页显示:
共4页 首页 上一页 第1页 下一页 末页 /4 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