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21篇 您的检索式:作者名="SONG Yanru"
    题名 作者 年代 出处 被引量
1Identification of seed-specific promoter nap300 and its comparison with 7S promoter显示文摘By fusing seed-specific promoter nap300 with β-glucuronidase gene, it was found that this about 300bp DNA fragment was sufficient to direct seed-specific gene expression. The substitution mutation in both distB and proxB elements had a little effect on the expression efficiency and almost no effect on the organ-specific expression pattern. In the experiment designed to compare nap300 with 7S promoter, the result showed that tissue specificity for nap300 was higher than that for 7S, and its expression level was lower than 7S's. There was no big difference in their expression pattern, and the maximal activity stage for the two promoters was identical, which indicated they could be used simultaneously for expressing different foreign genes in seeds.ZHANG Jingyu, LI Li and SONG Yanru(Key Laboratory of Photosynthesis and Enviromental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China) 2002Progress in Natural Science:Materials International2002,12,10:9
2Relation between phytohormone level and vascular bridge differentiation in graft union of explanted internode autografting显示文摘Development of the graft union of explanted internode autografting of cucumber ( Cu-cumis sativus Linn.) cultured in vitro is regulated by plant hormones exogenously added to the media. The levels of auxin (indole-3-acetic acid, IAA) and zeatin plus zeatin riboside (Z+ ZR) in graft unions and in 4 parts of the graft union have been analyzed by ELISA assay.Shanfa Lu Yanru Song 1999Chinese Science Bulletin1999,44,20:8
3Lignin biosynthesis by suppression of two O-methyl-transferases显示文摘Caffeic acid O-methyltransferase (COMT) and caffeoyl-CoA-3-O-methyltransferase (CCoAOMT) genes encode two methyltransferases at different substrate levels in lignin biosynthesis. We constructed two single antisense expression vectors containing the cDNA of COMT or CCoAOMT genes and one dual antisense expression vector containing cDNAs of both OMTs genes. The antisense constructs were transferred into tobacco mediated by Agrobac-terium tumefacience. PCR-Southern analysis indicated that antisense cDNAs had been integrated into the genome of the transgenic tobacco. The antisense genes were also expressed at transcriptional level displayed by Northern dot analysis. Klason lignin assay of 3-month-old transgenic tobaccos showed that repression in COMT or CCoAOMT alone could result in reduction of lignin content, more reduction was caused by suppression in CCoAOMT than in COMT. Furthermore, simultaneous suppression of both COMT and CCoAOMT resulted in more reduction than that of single gene, which indicatedZHAO Huayan WEI Jianhua ZHANG Jinyu LIU Huirong WANG Tai SONG Yanru 2002Chinese Science Bulletin2002,47,13:7
4Characterization of 500 Chinese patients with cervical esophageal cancer by clinicopathological and treatment outcomes显示文摘Objective: There are no comprehensive studies on survival outcomes and optimal treatment protocols for cervical esophageal cancer(CEC), due to its rare clinical prevalence. Our objective was to determine the relationship between pathological characteristics, treatment protocols, and survival outcomes in Chinese CEC patients.Methods: A total of 500 Chinese CEC patients were selected from our 500,000 esophageal and gastric cardia carcinoma database(1973–2018). There were two main groups: patients treated with surgery, and patients receiving non-surgical treatments(radiotherapy, radiochemotherapy, and chemotherapy). The Chi-square test and Kaplan–Meier method were used to compare the continuous variables and survival.Results: Among the 500 CEC patients, 278(55.6%) were male, and the median age was 60.9 ± 9.4 years. A total of 496 patients(99.2%) were diagnosed with squamous cell carcinoma. In 171(34.2%) patients who received surgery, 22(12.9%) had undergone laryngectomy. In 322(64.4%) patients who received non-surgical treatments, 245(76.1%) received radiotherapy. Stratified survival analysis showed that only T stage was related with survival outcomes for CEC patients in the surgical group, and the outcomes between laryngectomy and non-laryngectomy patients were similar. It was noteworthy that the 5-year survival rate was similar in CEC patients among the different groups treated with surgery, radiotherapy, chemotherapy, or radiochemotherapy(P = 0.244). Conclusions: The CEC patients had similar survival outcomes after curative esophagectomy and radiotherapy, including those with or without total laryngectomy. These findings suggest that radiotherapy could be the initial choice for treatment of Chinese CEC patients.Peinan Chen Xueke Zhao Fuyou Zhou Xin Song Shoujia Hu Yan Jin Xianzeng Wang Xuena Han ZongminFan Ran Wang Bei Li Wenli Han Panpan Wang Jilin Li Lixin Wan Liguo Zhang Qide Bao Fubao Chang Yanru Qin Zhiwei Chang Jianwei Ku Haijun Yang Ling Yuan Jingli Ren Xuemin Li Lidong Wang 2020Cancer Biology & Medicine2020,17,1:6
5Pulping performance of transgenic poplar with depressed Caffeoyl-CoA O-methyltransferase显示文摘This paper evaluated pulping performance of 3-year-old field-grown transgenic poplar (Populus tremula × Populus alba). The transgenic poplar with anti-sense CCoAOMT had an about 13% decreased lignin content, in which a slight increment was found in S/G ratio. Chemical analysis showed that the transgenic poplar had significantly less benezene-ethanol extractive than that of control wood, but no significant differences were found in contents of ash, cold water extractive, hot water extractive, 1% NaOH extractive, holocellulose, pentosans and cellulose. Fiber assay demonstrated that down-regulation of CCoAOMT expression improved the fiber quality in transgenic poplar. Kraft pulping showed that lower lignin in transgenic poplar led to remarkable improved pulp quality and increased pulp yield.WEI JianHua WANG YanZhen WANG HongZhi LI RuiFen LIN Nan MA RongCai QU LeQing SONG YanRu 2008Chinese Science Bulletin2008,53,22:5
6Construction of plant seed-specific expression vectors pSCB and pSCAB and the obtainment of transgenic Brassica napus H165 expressing poly-3-hydroxybutyrate synthetic genes显示文摘The seed-specific promoter and transit peptide were amplified and fused to the three genes phbA, phbB and phbC encoding PHB synthetic enzymes, respectively. Seed-specific expression vectors pSCB containing phbC and phbB, and pSCAB containing phbC, phbB and phbA, were constructed by introducing the genes with promoter and peptide into the binary vector pBI101. Transgenic Brassica napus H165 were obtained by Agrobacterium-mediated transformation with these vectors. They were confirmed by PCR, Southern and RT-PCR analyses.Liang Ye Cong Li Yanru Song 2000Chinese Science Bulletin2000,45,13:4
7Automatic detection of ruminant cows’ mouth area during rumination based on machine vision and video analysis technology显示文摘In order to realize the automatic monitoring of ruminant activities of cows,an automatic detection method for the mouth area of ruminant cows based on machine vision technology was studied.Optical flow was used to calculate the relative motion speed of each pixel in the video frame images.The candidate mouth region with large motion ranges was extracted,and a series of processing methods,such as grayscale processing,threshold segmentation,pixel point expansion and adjacent region merging,were carried out to extract the real area of cows’mouth.To verify the accuracy of the proposed method,six videos with a total length of 96 min were selected for this research.The results showed that the highest accuracy was 87.80%,the average accuracy was 76.46%and the average running time of the algorithm was 6.39 s.All the results showed that this method can be used to detect the mouth area automatically,which lays the foundation for automatic monitoring of cows’ruminant behavior.Yanru Mao Dongjian He Huaibo Song 2019International Journal of Agricultural and Biological Engineering2019,12,1:4
8Expressing PHB synthetic genes through chloroplast genetic engineering显示文摘Chloroplast integration and expression vector containing expression cassettes for phbB, phbA, phbC and aadA genes was constructed and bombarded into the tobacco chloroplast genome. Transplastomic plants were analyzed with PCR and Southern blot. Their homoplastomy was also judged. Northern dot and RT-PCR analysis were employed to investigate transgene expression at transcriptional level. The results indicate that the chloroplast transformation system is compatible for poly-3-hydroxybutyrate (PHB) production.ZHANG Jingyu SU Ning ZHANG Zhonglin ZHAO Huayan ZHU Shengwei SONG Yanru 2002Chinese Science Bulletin2002,47,16:3
9Cloning and sequencing of phbA gene of poly-β-hydroxybuty rate synthesis and its expression analysis显示文摘The gene of the first key enzyme of poly-β-hydroxybutyrate synthesis, 3-ketothiolase, has been amplified and cloned from chromosomal DNA of Alcaligenes eutrophus H16 by PCR. DNA sequencing results show that phbA cloned in pBluescriptSK^+ has an identical sequence with that reported previously except for one base pair. The plant constitutive expression vector has been constructed and tobacco has been transformed in order to examine the phbA gene function and the efficiency of ctp gene product. SDS-polyacrylamide gel electrophoresis result shows that the ctp gene product could direct foreign protein into plastid efficiently and phbA gene could be translated into corresponding protein with correct size. The enzyme activity analysis of 3-ketothiolase shows that the enzyme could catalyze acetyl-CoA to form acetoacetylCoA.Liang Ye Cong Li Yanru Song 1999Chinese Science Bulletin1999,44,15:2
10Detection of circulating tumor cells in peripheral blood from patients with gastric cancer using piRNAs as markers显示文摘Long Cui Yanru Lou Xinjun Zhang Hui Zhou Hongxia Deng Haojun Song Xiuchong Yu Bingxiu Xiao Weihua Wang Junming Guo 2011Clinical Biochemistry2011,,13:2
11Chemical components of Speriphidium santolium Poijak 显示文摘Deng Yanru Song Aixin Wang Hanqing 2004Journal of the Chinese Chemical Society2004,51,3:1
12A study of Z-source dual-bridge matrix converter immune to abnormal input voltage disturbance and with high voltage transfer ratio显示文摘Song Weizhang Zhong Yanru Zhang Hao 2013IEEE Transactions on Industrial Informatics2013,9,2:1
13Electrolytic coloration of hydroxyl-doped sodium chloride crystals 显示文摘SONG Cuiying GU Hongen WU Yanru 2005J Lumin2005,113,:1
14Early Cretaceous intermediate-mafic dykes in the Dabie orogen, eastern China: Petrogenesis and implications for crust-mantle interaction 显示文摘Xu Haijin Ma Changqian Song Yanru Zhang Junfeng Ye Kai 2012Lithos2012,154,:1
15Progress of PHA production in transgenic plants显示文摘With its completely biodegradable ability, good physical and processing properties, and biocompatability, PHA has become the most attractive alternative to take the place of chemo-plastics and eliminate environmental pollution caused by chemo-plastics. Small-scale commercial production has been realized by bacterial fermentation, but thus produced PHATao Wang Liang Ye Yanru Song 1999Chinese Science Bulletin1999,44,19:0
16Molecular characterization of OsPRP1 from rice,which is expressed preferentially in anthers显示文摘A proline-rich protein-encoding cDNA encoded by a rice gene, OsPRP1, was isolated by PCR-mediated RNA subtraction hybridization strategy and rapid amplification of cDNA ends. The deduced protein consists of 224 amino acids with the highest level of proline residue (14.29%). Following the putative signal peptide, OsPRP1 contains two structural domains, of which the N-terminal domain lacks Pro-rich repetitive sequences, and the C-terminal domain has two repetitive proline-rich sequences of 18 amino acid residues with PEPK motifs. Southern blot and sequence analysis show that OsPRP1 exists as four copies in rice genome and is localized in rice chromosome 10. RT-PCR experiments reveal that OsPRP1 is expressed preferentially in spikelets and buds with lower levels in roots and leaves. In situ hybridization indicates that OsPRP1 transcripts are present at high levels in pollen mother cells (PMCs), meiotic PMCs, tapetal cells and vascular bundle cells of flower organs. The expression of OsPRP1 in anthers has temporal specificity. The transcripts are accumulated at high levels in PMCs, at the highest levels in meiotic PMCs and at undetectable levels in uninucleate pollen. In buds the transcripts are only detected in the epidermal cells of coleoptiles and leaf primordial.WU Xiaohuai, MAO Aijun, WANG Rong, WANG Tai, SONG Yanru & TONG Zhe Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Correspondence should be addressed to Wang Tai (e-mail: twang@ ns.ibcas.ac.cn) 2003Chinese Science Bulletin2003,48,22:0
17Genetic polymorphisms in genes regulating cell death and prognosis of patients with rectal cancer receiving postoperative chemoradiotherapy显示文摘Objective:The identification of biomarkers for predicting chemoradiotherapy efficacy is essential to optimize personalized treatment.This study determined the effects of genetic variations in genes involved in apoptosis,pyroptosis,and ferroptosis on the prognosis of patients with locally advanced rectal cancer receiving postoperative chemoradiotherapy(CRT).Methods:The Sequenom MassARRAY was used to detect 217 genetic variations in 40 genes from 300 patients with rectal cancer who received postoperative CRT.The associations between genetic variations and overall survival(OS)were evaluated using hazard ratios(HRs)and 95%confidence intervals(CIs)computed using a Cox proportional regression model.Functional experiments were performed to determine the functions of the arachidonate 5-lipoxygenase(ALOX5)gene and the ALOX5 rs702365 variant.Results:We detected 16 genetic polymorphisms in CASP3,CASP7,TRAILR2,GSDME,CASP4,HO-1,ALOX5,GPX4,and NRF2 that were significantly associated with OS in the additive model(P<0.05).There was a substantial cumulative effect of three genetic polymorphisms(CASP4 rs571407,ALOX5 rs2242332,and HO-1 rs17883419)on OS.Genetic variations in the CASP4 and ALOX5 gene haplotypes were associated with a higher OS.We demonstrated,for the first time,that rs702365[G]>[C]represses ALOX5 transcription and corollary experiments suggested that ALOX5 may promote colon cancer cell growth by mediating an inflammatory response.Conclusions:Polymorphisms in genes regulating cell death may play essential roles in the prognosis of patients with rectal cancer who are treated with postoperative CRT and may serve as potential genetic biomarkers for individualized treatment.Hongxia Chen Luxi Yin Jie Yang Ningxin Ren Jinna Chen Qixuan Lu Ying Huang Yanru Feng Weihu Wang Shulian Wang Yueping Liu Yongwen Song Yexiong Li Jing Jin Wen Tan Dongxin Lin 2023Cancer Biology & Medicine2023,20,4:0
18Efficient selective activation of sorbitol C–O bonds over C–C bonds on CoGa(221)generated by lattice-induction strategy显示文摘Sorbitol is a primary platform compound in the conversion of cellulose.The conversion of sorbitol to C_(6) hydrocarbons requires a complete cleavage of C–O bonds and meanwhile the inhibition of C–C cleavage.Here,we demonstrated an efficient selective cleavage of C–O over C–C bond on the(221)facet of supported CoGa.A selectivity of 94%to C_(6) hydrocarbon with conversion of 97%has been achieved.The selective C–O cleavage was demonstrated by tuning the exposed facet as(221)or(110).The supported CoGa was prepared simply by reduction of Co and Ga-containing layered double hydroxides(CoZnGaAl-LDHs),the exposed facets of CoGa crystallites were controlled by tailoring the temperature-programmed rate in the reduction.By reducing CoZnGaAl-LDHs,CoGa(221)was exposed with a temperature-programmed rate of 5℃/min under the induction of ZnO lattice,while CoGa(110)was exposed with a rate of 10℃/min.Ying Kong Yanru Zhu Zhe An Jian Zhang Xin Shu Hongyan Song Qipeng Yuan Jing He 2023Nano Research2023,16,5:0
19Regeneration of Fe_(2)O_(3)-based high-temperature coal gas desulfurization sorbent in atmosphere with sulfur dioxide显示文摘Regeneration of a high-temperature coal gas desulfurization sorbent is a key technology in its industrial applications.A Fe_(2)O_(3)-based high-temperature coal gas desulfurizer was prepared using red mud from steel factory.The influences of regeneration temperature,space velocity and regeneration gas concentration in SO_(2) atmosphere on regeneration performances of the desulfurization sorbent were tested in a fixed bed reactor.The changes of phase and the composition of the Fe_(2)O_(3)-based high-temperature coal gas desulfurization sorbent before and after regeneration were examined by X-ray diffraction(XRD)and X-ray Photoelectron spectroscopy(XPS),and the changes of pore structure were characterized by the mercury intrusion method.The results show that the major products are Fe3O4 and elemental sulfur;the influences of regeneration temperature,space velocity and SO_(2) concentration in inlet on regeneration performances and the changes of pore structure of the desulfurization sorbent before and after regeneration are visible.The desulfurization sorbent cannot be regenerated at 500℃ in SO_(2) atmosphere.Within the range of 600℃-800℃,the time of regeneration becomes shorter,and the regeneration conversion increases as the temperature rises.The time of regeneration also becomes shorter,and the elemental sulfur content of tail gas increases as the SO_(2) concentration in inlet is increased.The increase in space velocity enhances the reactive course;the best VSP is 6000 h^(-1) for regeneration conversion.At 800℃,20 vol-%SO_(2) and 6000 h^(-1),the regeneration conversion can reach nearly to 90%.Ruizhuang ZHAO Ju SHANGGUAN Yanru LOU Jin SONG Jie MI Huiling FAN 2010Frontiers of Chemical Science and Engineering2010,4,4:0
20Low temperature one-pot synthesis of 1,1-diethoxyethane from ethanol on Bi/BiCeO_(x)with strong metal-support interactions显示文摘The direct conversion of ethanol to 1,1-diethoxyethane(DEE)through one-pot dehydrogenation-acetalization has attracted broad interest from both academia and industry.Based on thermodynamics,the oxidative dehydrogenation of alcohol to acetaldehyde requires high temperature to activate oxygen to realize the C-H cleavage,while the acetalization of acetaldehyde with ethanol is exothermic reversible reaction favorable at low temperature.The mismatching of the reaction condition for the two consecutive steps makes it a great challenge to achieve both high ethanol conversion and high DEE selectivity.This work reports a highly efficient bi-functional catalysis by Bi/BiCeO_(x)for one-pot oxidative dehydrogenation-acetalization route from ethanol to DEE under 150℃and ambient pressure,affording a selectivity of 98.5%±0.5%to DEE at an ethanol conversion of 87.0%±1.0%.An efficient tandem catalysis has been achieved on the interfacial Bi^(δ)+-Ov-Ce^(III)sites in Bi/BiCeO_(x)established by strong metal-support interaction,in which Biδ+-Ov-sites contribute to the oxidative dehydrogenation of ethanol at mild temperature,and-Ov-CeIII sites to the subsequent acetalization between the generated acetaldehyde and ethanol.Zhe An Jiayu Liu Meng Cao Jian Zhang Yanru Zhu Hongyan Song Xu Xiang Jing He 2023Nano Research2023,16,3:0
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