38 results on '"Hong Ni"'
Search Results
2. Nitrogen-doped biochar from algal biomass: preparation, modification, and application
- Author
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Feng, Yiming, Wu, Xiaodan, Hong, Ni, Zhang, Linxue, Zhang, Xuexin, Liu, Yuhuan, Zheng, Hongli, Zhang, Qi, Ruan, Roger, and Cobb, Kirk
- Abstract
Biochar derived from biomass conversion has gained widespread use in environmental applications due to its cost-effectiveness, environmental benefits, and potential for carbon neutralization. However, due to restricted pore structure and limited surface-active sites of virgin biochar, modification is usually required to improve its performance. But these modifications can increase the costs associated with pretreatment processing for biochar utilization. Algae biomass (such as algae and microalgae) is characterized by its diverse varieties, rapid propagation rate, and excellent stability, making it a highly suitable raw material for adsorbents. Nitrogen doping is one of the most commonly used methods to enhance the catalytic performance of biochar materials. The utilization of algal biomass as a foundational material, in combination with nitrogen doping, has demonstrated superior catalytic performance surpassing that of virgin biochar. In this paper, we provide a comprehensive review of the research progress on algal biomass, analyzing the pyrolysis mechanism of algal biomass and the advantages and limitations of several methods for preparing nitrogen-doped biochar. Furthermore, we explore the practical applications of nitrogen-doped biochar in catalysis, pollutant adsorption, and supercapacitors, offering valuable insights for the ongoing development of algal nitrogen-doped biochar.
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- 2023
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3. CIRCULATING MIRNA-1-3P AS BIOMARKER OF ACCELERATED SARCOPENIA IN PATIENTS DIAGNOSED WITH CHRONIC HEART FAILURE.
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RUI XU, SHUAI CUI, LING CHEN, XIN-CHUN CHEN, LING-LING MA, HONG-NI YANG, and FANG-MEI WEN
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- 2022
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4. Electroless Deposition of Pure Co on TaN Substrate for Interconnect Metallization.
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Li-Na Qiu, Zi-Hong Ni, Ying-Jie Wang, Chun-Feng Hu, and Xin-Ping Qu
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ELECTROLESS deposition ,SURFACE roughness ,THIN films ,REDUCING agents ,NUCLEATION ,TRENCHES - Abstract
This work explores the electroless deposition of pure Co film on TaN substrate using Ti
3+ as a reducing agent for interconnect metallization. Continuous and dense electroless-deposited (ELD) Co thin films with low surface roughness are obtained on the blanket and patterned structures using colloidal Sn/Pd activation. The effects of the Pd activation process on the Co nucleation, growth mechanisms, and the properties of the deposited Co films have been investigated in detail. The properties of the activated Pd nuclei decide the morphology and quality of the ELD Co films. The XPS results indicate that the ELD Co film is nearly pure Co film, with the metallic Co concentration of 99.2 at% and 99.4 at% for the as-deposited and annealed films, respectively. The resistivity of the Co film in 60 nm thick is as low as 13.6 μΩ·cm. Our results reveal that the ELD Co film is nanocrystalline with a mixture of the HCP and FCC structures. Further, the conformal ELD Co layer with good step coverage is deposited into the nanoscale trenches. [ABSTRACT FROM AUTHOR]- Published
- 2022
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5. ISSAAC-seq enables sensitive and flexible multimodal profiling of chromatin accessibility and gene expression in single cells
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Xu, Wei, Yang, Weilong, Zhang, Yunlong, Chen, Yawen, Hong, Ni, Zhang, Qian, Wang, Xuefei, Hu, Yukun, Song, Kun, Jin, Wenfei, and Chen, Xi
- Abstract
Joint profiling of chromatin accessibility and gene expression from the same single cell provides critical information about cell types in a tissue and cell states during a dynamic process. Here, we develop in situ sequencing hetero RNA–DNA-hybrid after assay for transposase-accessible chromatin-sequencing (ISSAAC-seq), a highly sensitive and flexible single-cell multi-omics method to interrogate chromatin accessibility and gene expression from the same single nucleus. We demonstrated that ISSAAC-seq is sensitive and provides high quality data with orders of magnitude more features than existing methods. Using the joint profiles from over 10,000 nuclei from the mouse cerebral cortex, we uncovered major and rare cell types and cell-type specific regulatory elements and identified heterogeneity at the chromatin level within established cell types defined by gene expression. Finally, we revealed distinct dynamics and relationships of gene expression and chromatin accessibility during an oligodendrocyte maturation trajectory.
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- 2022
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6. A mycovirus modulates the endophytic and pathogenic traits of a plant associated fungus
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Zhou, Lingling, Li, Xuepei, Kotta-Loizou, Ioly, Dong, Kaili, Li, Shifang, Ni, Dejiang, Hong, Ni, Wang, Guoping, and Xu, Wenxing
- Abstract
Fungi are generally thought to live in host plants with a single lifestyle, being parasitism, commensalism, or mutualism. The former, known as phytopathogenic fungi, cause various plant diseases that result in significant losses every year; while the latter, such as endophytic fungi, can confer fitness to the host plants. It is unclear whether biological factors can modulate the parasitic and mutualistic traits of a fungus. In this study, we isolated and characterized a mycovirus from an endophytic strain of the fungus Pestalotiopsis theae, a pathogen of tea (Camellia sinensis). Based on molecular analysis, we tentatively designated the mycovirus as Pestalotiopsis theae chrysovirus-1 (PtCV1), a novel member of the family Chrysoviridae, genus Alphachrysovirus. PtCV1 has four double-stranded (ds) RNAs as its genome, ranging from 0.9 to 3.4 kbp in size, encapsidated in isometric particles. PtCV1 significantly reduced the growth rates of its host fungus in vitro (ANOVA; P-value < 0.001) and abolished its virulence in planta(ANOVA; P-value < 0.001), converting its host fungus to a non-pathogenic endophyte on tea leaves, while PtCV1-free isolates were highly virulent. Moreover, the presence of PtCV1 conferred high resistance to the host plants against the virulent P. theaestrains. Here we report a mycovirus that modulates endophytic and phytopathogenic fungal traits and provides an alternative approach to biological control of plant diseases caused by fungi.
- Published
- 2021
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7. A mycovirus modulates the endophytic and pathogenic traits of a plant associated fungus
- Author
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Zhou, Lingling, Li, Xuepei, Kotta-Loizou, Ioly, Dong, Kaili, Li, Shifang, Ni, Dejiang, Hong, Ni, Wang, Guoping, and Xu, Wenxing
- Abstract
Fungi are generally thought to live in host plants with a single lifestyle, being parasitism, commensalism, or mutualism. The former, known as phytopathogenic fungi, cause various plant diseases that result in significant losses every year; while the latter, such as endophytic fungi, can confer fitness to the host plants. It is unclear whether biological factors can modulate the parasitic and mutualistic traits of a fungus. In this study, we isolated and characterized a mycovirus from an endophytic strain of the fungus Pestalotiopsis theae, a pathogen of tea (Camellia sinensis). Based on molecular analysis, we tentatively designated the mycovirus as Pestalotiopsis theae chrysovirus-1 (PtCV1), a novel member of the family Chrysoviridae, genus Alphachrysovirus. PtCV1 has four double-stranded (ds) RNAs as its genome, ranging from 0.9 to 3.4 kbp in size, encapsidated in isometric particles. PtCV1 significantly reduced the growth rates of its host fungus in vitro (ANOVA; P-value < 0.001) and abolished its virulence in planta(ANOVA; P-value < 0.001), converting its host fungus to a non-pathogenic endophyte on tea leaves, while PtCV1-free isolates were highly virulent. Moreover, the presence of PtCV1 conferred high resistance to the host plants against the virulent P. theaestrains. Here we report a mycovirus that modulates endophytic and phytopathogenic fungal traits and provides an alternative approach to biological control of plant diseases caused by fungi.
- Published
- 2021
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8. Molecular and biological characterization of melon-infecting squash leaf curl China virus in China
- Author
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WU, Hui-jie, LI, Meng, HONG, Ni, PENG, Bin, and GU, Qin-sheng
- Abstract
It has been reported that squash leaf curl China virus (SLCCNV) infects some Cucurbitaceae crops except for melon (Cucumis meloL.). A new disease of melon exhibiting severe leaf curl and dwarfing was observed in Hainan Province of China. In this study, the pathogen was identified as SLCCNV through biological and molecular characterization. The isolate (SLCCNV-HN) possess a bipartite genome, DNA-A (HM566112.1) with the highest nucleotide identity (99%) to SLCCNV-Hn (MF062251.1) pumpkin and SLCCNV-Hn61 (AM260205.1) squash isolates from China, whereas DNA-B (HM566113.1) with the highest nucleotide identity (99%) to SLCCNV-Hn (MF062252.1). Phylogenetic analyses based on the full-length SLCCNV-HN DNA-A and -B sequences indicated that SLCCNV-HN melon isolate is clustered with SLCCNV-Hn pumpkin, SLCCNV-Hn61 and SLCCNV-SY squash isolates from southern China, forming an independent cluster. Infectious clone of SLCCNV-HN was constructed and the melon plants were inoculated and the infection rate is 100%, the systemic symptoms in melon showed identical to those of melon plants infected in fields. Additionally, melon plants transmission of this virus by Bemisia tabaciwith a transmission rate of 95% (19/20) showed leaf curl and dwarf symptoms 15 days post transmission, thereby fulfilling Koch's postulates. Analysis of genomic organization and phylogenetic trees indicated that SLCCNV-HN melon isolate belongs to the Begomovirusgenus. To the best of our knowledge, this is the first characterization of melon-infecting SLCCNV through its genome, infectious clone and transmission.
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- 2020
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9. Diploid genome architecture revealed by multi-omic data of hybrid mice
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Han, Zhijun, Cui, Kairong, Placek, Katarzyna, Hong, Ni, Lin, Chengqi, Chen, Wei, Zhao, Keji, and Jin, Wenfei
- Abstract
Although mammalian genomes are diploid, previous studies extensively investigated the average chromatin architectures without considering the differences between homologous chromosomes. We generated Hi-C, ChIP-seq, and RNA-seq data sets from CD4 T cells of B6, Cast, and hybrid mice, to investigate the diploid chromatin organization and epigenetic regulation. Our data indicate that inter-chromosomal interaction patterns between homologous chromosomes are similar, and the similarity is highly correlated with their allelic coexpression levels. Reconstruction of the 3D nucleus revealed that distances of the homologous chromosomes to the center of nucleus are almost the same. The inter-chromosomal interactions at centromere ends are significantly weaker than those at telomere ends, suggesting that they are located in different regions within the chromosome territories. The majority of A|B compartments or topologically associated domains (TADs) are consistent between B6 and Cast. We found 58% of the haploids in hybrids maintain their parental compartment status at B6/Cast divergent compartments owing to ciseffect. About 95% of the trans-effected B6/Cast divergent compartments converge to the same compartment status potentially because of a shared cellular environment. We showed the differentially expressed genes between the two haploids in hybrid were associated with either genetic or epigenetic effects. In summary, our multi-omics data from the hybrid mice provided haploid-specific information on the 3D nuclear architecture and a rich resource for further understanding the epigenetic regulation of haploid-specific gene expression.
- Published
- 2020
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10. Comprehensive analysis of full genome sequence and Bd-milRNA/target mRNAs to discover the mechanism of hypovirulence in Botryosphaeria dothideastrains on pear infection with BdCV1 and BdPV1
- Author
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Hu, Wangcheng, Luo, Hui, Yang, Yuekun, Wang, Qiong, Hong, Ni, Wang, Guoping, Wang, Aiming, and Wang, Liping
- Abstract
Pear ring rot disease, mainly caused by Botryosphaeria dothidea, is widespread in most pear and apple-growing regions. Mycoviruses are used for biocontrol, especially in fruit tree disease. BdCV1 (Botryosphaeria dothideachrysovirus 1) and BdPV1 (Botryosphaeria dothideapartitivirus 1) influence the biological characteristics of B. dothideastrains. BdCV1 is a potential candidate for the control of fungal disease. Therefore, it is vital to explore interactions between B. dothideaand mycovirus to clarify the pathogenic mechanisms of B. dothideaand hypovirulence of B. dothideain pear. A high-quality full-length genome sequence of the B. dothideaLW-Hubei isolate was obtained using Single Molecule Real-Time sequencing. It has high repeat sequence with 9.3% and DNA methylation existence in the genome. The 46.34 Mb genomes contained 14,091 predicted genes, which of 13,135 were annotated. B. dothideawas predicted to express 3833 secreted proteins. In bioinformatics analysis, 351 CAZy members, 552 transporters, 128 kinases, and 1096 proteins associated with plant-host interaction (PHI) were identified. RNA-silencing components including two endoribonuclease Dicer, four argonaute (Ago) and three RNA-dependent RNA polymerase (RdRp) molecules were identified and expressed in response to mycovirus infection.Horizontal transfer of the LW-C and LW-P strains indicated that BdCV1 induced host gene silencing in LW-C to suppress BdPV1 transmission. To investigate the role of RNA-silencing in B. dothideadefense, we constructed four small RNA libraries and sequenced B. dothideamicro-like RNAs (Bd-milRNAs) produced in response to BdCV1 and BdPV1 infection. Among these, 167 conserved and 68 candidate novel Bd-milRNAs were identified, of which 161 conserved and 20 novel Bd-milRNA were differentially expressed. WEGO analysis revealed involvement of the differentially expressed Bd-milRNA-targeted genes in metabolic process, catalytic activity, cell process and response to stress or stimulus. BdCV1 had a greater effect on the phenotype, virulence, conidiomata, vertical and horizontal transmission ability, and mycelia cellular structure biological characteristics of B. dothideastrains than BdPV1 and virus-free strains. The results obtained in this study indicate that mycovirus regulates biological processes in B. dothideathrough the combined interaction of antiviral defense mediated by RNA-silencing and milRNA-mediated regulation of target gene mRNA expression.
- Published
- 2019
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11. Molecular, serological and biological characterization of a novel Apple stem pitting virusstrain from a local pear variety grown in China
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LI, Liu, ZHENG, Meng-meng, MA, Xiao-fang, LI, Yuan-jun, LI, Qing-yu, WANG, Guo-ping, and HONG, Ni
- Abstract
Apple stem pitting virus(ASPV) is an important causal agent of pear diseases. Nowadays, the infection status and molecular characteristics of the virus in old pear trees have never been investigated. In this study, we provide the first complete genome sequence of an ASPV isolate LYC from an over 300-year-old tree of a local Pyrus bretschneidericultivar ‘Chili’ specifically grown at Laiyang area in China. ASPV-LYC possesses a chimeric genome consisting of 9 273 nucleotides excluding a poly(A) tail at its 3’ end and harboring a recombination region in its open reading frame (ORF1) with Aurora-1 and KL9 identified as the major and minor parents. Western blot analysis with antisera against recombinant coat proteins (CPs) of three ASPV isolates from pear indicates that ASPV-LYC is serologically related to these ASPV isolates, but with differential activities. Further biological tests on indicator plants of Pyronia veitchiishow that ASPV-LYC can induce serious leaf and stem symptoms as other ASPV isolates. The results provide an important information for understanding molecular evolution of ASPV and suggest a need to prevent dissemination of the isolate among pear trees.
- Published
- 2019
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12. ASSOCIATION OF BONE MINERAL DENSITY WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN POSTMENOPAUSAL WOMEN.
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RUI XU, YUAN ZHANG, XIN-CHUN CHEN, YU-QING LI, LING-LING MA, RUI GONG, and HONG-NI YANG
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- 2019
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13. Effect of in vitrosub-culture of sandy pear on variant structure of apple stem grooving virus
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Hu, Guo-jun, Wang, Guo-ping, and Hong, Ni
- Abstract
In vitroculture of sand pear (Pyrus pyrifolia) cv. Huanghua (HH) infected with apple stem grooving virus (ASGV) was conducted and the titer and variant mutations of the virus in sub-culture were analyzed. The results showed that ASGV could replicate stably in 20 successive sub-cultures. The 500 bp PCR products of ASGV in each sub-culture were cloned and used for single-strand conformation polymorphism analysis. The results demonstrated that there was a dominant molecular variant of ASGV in vitroand that the variant structure of ASGV is stable in sub-culturing. The rate of the main haplotype in the 20 passages was from 78.0% to 95.7%. To clarify the origin of subordinate haplotypes, the error rate of our RT-PCR assay (5.4× 10−4/nt) was computed and the results indicated that the mutations which appeared in sub-passages were acquired from artificial operation and not produced by viral replication.
- Published
- 2019
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14. Size Distribution of Soot Particles in Premixed n-Heptane and Methylcyclohexane Flames.
- Author
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Baiyang Lin, Hao Gu, Hong Ni, Bin Guan, Zhongzhao Li, Dong Han, Zhen Huang, and He Lin
- Published
- 2018
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15. Association of coronary artery calcium with bone mineral density in postmenopausal women
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Xu, Rui, Yang, Hong-Ni, Li, Yu-Qing, Wang, Qing-Fang, Guo, Ai-Hua, Ayiti, Aliya, Chen, Xin-Chun, Gong, Rui, Banu, Guli, Jian, Li-Dang, Gao, Yun, Sheng, Ke, and Maimti, Yasinjan
- Published
- 2016
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16. Meeting the Psychoeducational Needs of Ethnic Minority Students: A Discussion of the Necessity of Multicultural Competence.
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Chieh Li, Hong Ni, and Stoianov, Diana
- Subjects
SCHOOL psychology ,MINORITY students ,CULTURAL competence ,PROBLEM solving ,MULTICULTURALISM - Abstract
In addition to a critique of the primary components of Frisby's article, the value of multicultural competence and training school psychologists is defended. Although acknowledging some weaknesses concerning the value of multicultural competence, these problems should not overshadow the continuous efforts of the researchers who address the challenges, such as conceptualization of multiculturalism in school psychology and identifying critical competencies; responsive training in school psychology; and evidence-based practices in critical areas such as assessment, consultation, and systems-level interventions with culturally diverse students and their schools and communities. Therefore, we argue that what our field needs is to improve multicultural research, teaching, and practice rather than abandon multiculturalism. [ABSTRACT FROM AUTHOR]
- Published
- 2015
17. The analytical determination and electrochemiluminescence behavior of amoxicillin
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Shen, Li-Hua, Wang, Hong-Ni, Chen, Pei-Jing, Yu, Chun-Xia, Liang, Yao-Dong, and Zhang, Cheng-Xiao
- Abstract
A novel electrochemiluminescence (ECL) luminophor of amoxicillin was studied and found to generate ECL following the oxidation or reduction of amoxicillin. The amoxicillin oxidation state was also found to eliminate the reduction state, generating ECL. When solutions of amoxicillin were scanned between +1.5 V and −1.0 V with a graphite electrode in the presence of cetyltrimethyl ammonium bromide using KC1 as the supporting electrolyte, ECL emissions were observed at potentials of −0.7 V and +0.5 V. The ECL intensity at −0.7 V was enhanced by H2O2. Based on these findings, an ECL method for the determination of the amoxicillin concentration is proposed. The ECL intensities were linear with amoxicillin concentrations in the range of 1.8 × 10−8 g/mL to 2.5 × 10−7 g/mL, and the limit of detection (signal/noise = 3) was 5 × 10−9 g/mL. The florescence of amoxicillin had the greatest emission intensity in a neutral medium, with the emission wavelength dependent on the excitation wavelength. The experiments on the ECL mechanism for amoxicillin found that the electrochemical oxidation products of dissolved oxygen and active oxygen species contributed to the ECL process. The data also suggest that the hydroxyl group of amoxicillin contributed to its ECL emission.
- Published
- 2016
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18. Identification and characterization of Colletotrichum fructicola causing black spots on young fruits related to bitter rot of pear (Pyrus bretschneideri Rehd.) in China.
- Author
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Jiang, Jingjing, Zhai, Hongyan, Li, Huannan, Wang, Zhenhua, Chen, Yongsen, Hong, Ni, Wang, Guoping, Chofong, Gilbert Nchongboh, and Xu, Wenxing
- Subjects
COLLETOTRICHUM ,GRAPE anthracnose ,FRUIT ,BITTERNESS (Taste) ,PEAR fruit-borer ,NUCLEOTIDE sequence - Abstract
Abstract: In recent years, Pyrus bretschneideri Rehd. var. ‘Suli’ has been damaged by a disease characterized by the presence of black spots on young fruit in China, which was always followed by severe bitter rot on matured fruits. The etiology of these symptoms and their relationship with the bitter rot was unknown. A colony was routinely isolated from young and matured ‘Suli’ pear fruits showing black spots and rot symptoms, respectively. This fungal colony was identified as Colletotrichum fructicola based on morphological characteristics and DNA sequence data of 7 regions. C. fructicola was confirmed to be capable of eliciting both black spots and bitter rot symptoms by completion of Koch's Postulates. The results suggested that the disease characterized by the presence of black spots on young fruits is indeed an early stage of the bitter rot observed on matured fruits of ‘Suli’ pear. Variety resistance analysis indicated an obvious resistance variation possessed by the pear varieties generally cultured in China, with black spots only occurring on some pear varieties. Our results also indicated that wounding can break the quiescent infections, enhance the infectivity of C. fructicola, and lead to more rapid rot of young and matured fruits. These results provided a clear clue that C. fructicola can invade some varieties of P. bretschneideri Rehd. directly without entry via wounds, but subsequently turned into quiescent infection and causing black spots on the fruit surface. The quiescent infection acts as a pathogenic factor responsible for bitter rot of matured fruits. The influence of temperature and pH conditions for growth and colony morphology of C. fructicola were also evaluated. The characterization of C. fructicola causing bitter rot of pear (P. bretschneideri) is expected to provide useful information for controlling this economically important disease. [Copyright &y& Elsevier]
- Published
- 2014
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19. Fasting glucagon-like peptide-1 in patients with overt hyperthyroidism and euthyroid congenital hypothyroidism.
- Author
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Cheng, Jian-Ping, Yue, Hong-Ni, Ma, Shao-Gang, Jin, Yue, Xu, Wei, and Bai, Feng
- Abstract
Aim: To investigate the influence of overt hyperthyroidism and euthyroid congenital hypothyroidism on fasting glucagon-like peptide-1 (GLP-1) levels. Methods: A total of 30 untreated overt hyperthyroidism patients, 17 euthyroid congenital hypothyroidism children, and age- and sex-matched controls were enrolled. Levels of GLP-1, insulin, glucose, and homeostasis model assessment (HOMA-IR) were measured and evaluated. Results: Fasting GLP-1, blood glucose, insulin, and HOMR-IR levels were higher in patients with overt hyperthyroidism than in controls (p=0.030, p=0.008, p=0.004, p=0.037, respectively). These parameters in euthyroid hypothyroidism were similar to the controls. In euthyroid congenital hypothyroidism and overt hyperthyroidism patients, serum GLP-1 levels were not correlated with thyroid hormone, blood glucose, insulin, and HOMR-IR. Conclusions: Fasting GLP-1 levels in the peripheral circulation were significantly increased in overt hyperthyroidism, however, they were no different in euthyroid congenital hypothyroidism. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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20. Derivation and Long-Term Culture of an Embryonic Stem Cell-Like Line from Zebrafish Blastomeres Under Feeder-Free Condition
- Author
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Ho, Sing Yee, Goh, Crystal Wei Pin, Gan, Jen Yang, Lee, Youn Sing, Lam, Millie Kuen Kuen, Hong, Ni, Hong, Yunhan, Chan, Woon Khiong, and Shu-Chien, Alexander Chong
- Abstract
AbstractExisting zebrafish embryonic stem (ES) cell lines are derived and maintained using feeder layers. We describe here the derivation and long-term culture of an ES cell-like line derived from zebrafish blastomeres without the use of feeder cells. This line, designated as ZES1, has been maintained for more than 800 days in defined Dulbecco's modified Eagle's medium supplemented with fetal bovine serum, zebrafish embryo extract, trout serum, and human basic fibroblast growth factor. ZES1 cells possessed a morphology typical of ES cells, being round or polygonal in shape with a large nucleus and sparse cytoplasm and were mostly diploid. The cells formed individual colonies consisting of tightly packed cells that stained positively for alkaline phosphatase. ZES1 cells also formed embryoid bodies when transferred onto uncoated wells. The pluripotent nature of ZES1 cells was confirmed when they could be induced to differentiate in vitrointo several cell types, through low- or high-density culture conditions. Treatment with retinoic acid also induced the differentiation of ZES1 cells into primarily neuronal cells. Using immunostaining and real-time polymerase chain reaction, we showed that Sox2, a known pluripotent marker in mammalian ES cells, was also present in ZES1 cells. Chimera experiments revealed that fluorescent-labeled ZES1 cells microinjected into zebrafish blastulas participated in the formation of all three germ layers. Using GFP-labeled ZES1 cells, chimera germline transmission was also demonstrated at the F1generation. In conclusion, ZES1 cells possess both in vitroand in vivopluripotency characteristics, indicating that nonmammalian ES cells can be readily derived and maintained for a long term under feeder-free culture conditions.
- Published
- 2014
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21. Construction of the recombinant attenuated Salmonella typhimurium live vector vaccine strain expressing IBDV VP2 protein and its immunogenicity analysis.
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Xu Xin-Gang, Zhao Hong-ni, Chen Guang-da, Zhang Kuan, and Tong De-wen
- Published
- 2011
22. Large-Scale Controlled Synthesis of FeCo Nanocubes and Microcages by Wet Chemistry.
- Author
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Xian-Wen Wei, Guo-Xing Zhu, Yuan-Jun Liu, Yong-Hong Ni, You Song, and Zheng Xu
- Published
- 2008
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23. Fasting glucagon-like peptide-1 in patients with overt hyperthyroidism and euthyroid congenital hypothyroidism
- Author
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Cheng, Jian-Ping, Yue, Hong-Ni, Ma, Shao-Gang, Jin, Yue, Xu, Wei, and Bai, Feng
- Abstract
AbstractAim:To investigate the influence of overt hyperthyroidism and euthyroid congenital hypothyroidism on fasting glucagon-like peptide-1 (GLP-1) levels.Methods:A total of 30 untreated overt hyperthyroidism patients, 17 euthyroid congenital hypothyroidism children, and age- and sex-matched controls were enrolled. Levels of GLP-1, insulin, glucose, and homeostasis model assessment (HOMA-IR) were measured and evaluated.Results:Fasting GLP-1, blood glucose, insulin, and HOMR-IR levels were higher in patients with overt hyperthyroidism than in controls (p=0.030, p=0.008, p=0.004, p=0.037, respectively). These parameters in euthyroid hypothyroidism were similar to the controls. In euthyroid congenital hypothyroidism and overt hyperthyroidism patients, serum GLP-1 levels were not correlated with thyroid hormone, blood glucose, insulin, and HOMR-IR.Conclusions:Fasting GLP-1 levels in the peripheral circulation were significantly increased in overt hyperthyroidism, however, they were no different in euthyroid congenital hypothyroidism.
- Published
- 2013
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24. Chemical Analysis and Antioxidant Activities In Vitro of Polysaccharide Extracted from Corn Silk
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He, Yu Tang, Gao, Hong Ni, Xu, Yong Xia, Pan, Xiao Ming, and Li, Jian Rong
- Abstract
Corn silk polysaccharide (CSP) was investigated for the treatment of different kinds of diseases. In order to characterize the chemical properties and antioxidant activities of CSP, the CSP was isolated from corn silk and purified by DE-52 cellulose column chromatography. Four components were separated, and the highest one named CSP-A. The CSP-A was characterized by FTIR and the monosaccharide components were analyzed by HPLC. The FTIR spectra indicated that CSP-A was characteristic of β-glucosidic bond and α-glycosidic bond. The CSP-A mainly comprised of glucose, galactose, arabinose, mannose, rhamnose. The antioxidant activities of CSP were determined by hydroxyl radical (•OH) and DPPH radicals scavenging assays. When the concentration of CSP was 10mg/mL, the scavenging capacity of •OH and DPPH could reach to 40% and 48%, respectively.
- Published
- 2012
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25. Effect of Probiotic lactobacillus Strains on Angiotensin I Converting Enzyme Inhibitory Activity from Fermented Goat Milk
- Author
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Chen, He, Ji, Zhe, Shu, Guo Wei, and Xing, Hong Ni
- Abstract
Goat milk was fermented by different strains of lactic acid bacterias in anaerobic tube, strains with high angiotensin converting enzyme (ACE) inhibitory activity were screened from 28 probiotic Lactobacillus strains by the criteria of ACE inhibitory activity and pH. The results showed that 20 strains had ACE inhibitory activity and among them the activity of 4 strains were extremely high, they were Lactobacillus reuteri, Lactobacillus bulgaricus, Lactobacillus rhamnosu and Lactobacillus helveticu. In vitro experiments, the ACE inhibitory activity of goat milk fermented by these 4 strains reached 95.92%, 84.61%, 82.79% and 78.57%, respectively. After incubation, pH of them were 6.17, 3.88, 5.24 and 3.71, respectively.
- Published
- 2012
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26. Novel RGD Peptidomimetics Embedding 1,2,3-Triazole as Central Scaffold; Synthesis and v3 Integrin Affinity
- Author
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Hong Ni, Ming, Esposito, Emiliano, Castorina, Massimo, and Dal Pozzo, Alma
- Abstract
Ten new RGD (Arginine-Glycine-Aspartic acid) peptidomimetics have been synthesized and screened for their affinity to v3 integrin receptor. Arginine and Aspartic acid mimetic subunits were connected through 1,2,3-triazole as central scaffold by click chemistry, affording the final products with good yields. Among them, compounds 3f-j exhibited high affinity to the receptor,with IC50 in the low nanomolar range, comparable to that of the reference compound Cilengitide.
- Published
- 2011
27. Novel RGD Peptidomimetics Embedding 1,2,3-Triazole as Central Scaffold; Synthesis and ..v..3 Integrin Affinity
- Author
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Hong Ni, Ming, Esposito, Emiliano, Castorina, Massimo, and Pozzo, Alma Dal
- Abstract
Ten new RGD (Arginine-Glycine-Aspartic acid) peptidomimetics have been synthesized and screened for their affinity to ..v..3 integrin receptor. Arginine and Aspartic acid mimetic subunits were connected through 1,2,3-triazole as central scaffold by click chemistry, affording the final products with good yields. Among them, compounds 3f-j exhibited high affinity to the receptor,with IC50 in the low nanomolar range, comparable to that of the reference compound Cilengitide.
- Published
- 2011
28. Germ cell sex prior to meiosis in the rainbow trout
- Author
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Li, Mingyou, Shen, Qian, Wong, Foong, Xu, Hongyan, Hong, Ni, Zeng, Lingbing, Liu, Lin, Wei, Qiwei, and Hong, Yunhan
- Abstract
Germ cells make two major decisions when they move from an indeterminate state to their final stage of gamete production. One decision is sexual commitment for sperm or egg production, and the other is to maintain mitotic division or entry into meiosis. It is unclear whether the two decisions are made as a single event or separate events, because there has been no evidence for the presence of germ cell sex prior to meiosis. Here we report direct evidence in the fish rainbow trout that gonia have distinct sexuality. We show that dazl expression occurs in both male and female gonia but exhibits differential intracellular distribution. More strikingly, we show that bouleis highly expressed in male gonia but absent in female gonia. Therefore, mitotic gonia possess sex, sperm/egg decision and mitosis/meiosis decision are two independent events, and sperm/egg decision precedes mitosis/meiosis decision in rainbow trout, making this organism a unique vertebrate model for mechanistic understanding of germ cell sex differentiation and relationship between the two decisions.
- Published
- 2011
- Full Text
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29. Medaka fish stem cells and their applications
- Author
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Yi, MeiSheng, Hong, Ni, Li, ZhenDong, Yan, Yan, Wang, DanKe, Zhao, HaoBin, and Hong, YunHan
- Abstract
Stem cells are present in developing embryos and adult tissues of multicellular organisms. Owing to their unique features, stem cells provide excellent opportunities for experimental analyses of basic developmental processes such as pluripotency control and cell fate decision and for regenerative medicine by stem cell-based therapy. Stem cell cultures have been best studied in 3 vertebrate organisms. These are the mouse, human and a small laboratory fish called medaka. Specifically, medaka has given rise to the first embryonic stem (ES) cells besides the mouse, the first adult testis-derived male stem cells spermatogonia capable of test-tube sperm production, and most recently, even haploid ES cells capable of producing Holly, a semi-cloned fertile female medaka from a mosaic oocyte created by microinjecting a haploid ES cell nucleus directly into a normal oocyte. These breakthroughs make medaka a favoring vertebrate model for stem cell research, the topic of this review.
- Published
- 2010
- Full Text
- View/download PDF
30. Aerobics instructors in fitness clubs in China.
- Author
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Xian-xiong Li, Fang Yang, and Xiang-hong Ni
- Abstract
The article presents a study that analyzes the situation of aerobic instructors in fitness clubs in China. It cites the adoption of literature study, questionnaire, and expert interview for the study. The research finds out that some instructors have no certificate and mostly doing their job for health and economic reasons. Moreover, it states that it is difficult to say that these instructors did their job for social advantage or recognition.
- Published
- 2009
31. Microwave-assisted Extraction of Phenolic Compounds from Grape Seed
- Author
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Hong, Ni, Yaylayan, VaroujanA., Vijaya Raghavan, G.S., Paré, J. R.Jocelyn, and Bélanger, JacquelineM. R.
- Abstract
AbstractA microwave-assisted extraction technique was developed to optimize the extraction of phenolic compounds from grape seeds. The microwave power (300-150W) and time of extraction (20-200s) were varied during the optimization process. The polyphenol content of the resulting extracts were measured as mg of tannic acid equivalent per gram of crude extract (mg TAE/g of crude extract), using a Folin-Ciocalteau reagent. In general, neither the time nor the power had a significant effect on the overall % yield (average of 13.5%) and on the polyphenol content (392 mg TAE/g of crude extract) of the extracts. However, when the solvent polarity was changed by the addition of 10% water, the yield increased to 15.2% and the polyphenol content increased to 429 mg TAE/g of crude extract.
- Published
- 2001
- Full Text
- View/download PDF
32. Microwave-assisted Extraction of Phenolic Compounds from Grape Seed
- Author
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Hong, Ni, Yaylayan, Varoujan, Raghavan, G. S. Vijaya, Paré, J. R. Jocelyn, and Bélanger, Jacqueline
- Abstract
A microwave-assisted extraction technique was developed to optimize the extraction of phenolic compounds from grape seeds. The microwave power (300-150W) and time of extraction (20-200s) were varied during the optimization process. The polyphenol content of the resulting extracts were measured as mg of tannic acid equivalent per gram of crude extract (mg TAE/g of crude extract), using a Folin-Ciocalteau reagent. In general, neither the time nor the power had a significant effect on the overall % yield (average of 13.5%) and on the polyphenol content (392 mg TAE/g of crude extract) of the extracts. However, when the solvent polarity was changed by the addition of 10% water, the yield increased to 15.2% and the polyphenol content increased to 429 mg TAE/g of crude extract.
- Published
- 2001
- Full Text
- View/download PDF
33. The Mediator subunit MED20 organizes the early adipogenic complex to promote development of adipose tissues and diet-induced obesity
- Author
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Tang, Wen-Shuai, Weng, Li, Wang, Xu, Liu, Chang-Qin, Hu, Guo-Sheng, Yin, Shu-Ting, Tao, Ying, Hong, Ni-Na, Guo, Huiling, Liu, Wen, Wang, Hong-Rui, and Zhao, Tong-Jin
- Abstract
MED20 is a non-essential subunit of the transcriptional coactivator Mediator complex, but its physiological function remains largely unknown. Here, we identify MED20 as a substrate of the anti-obesity CRL4-WDTC1 E3 ubiquitin ligase complex through affinity purification and candidate screening. Overexpression of WDTC1 leads to degradation of MED20, whereas depletion of WDTC1 or CUL4A/B causes accumulation of MED20. Depleting MED20 inhibits adipogenesis, and a non-degradable MED20 mutant restores adipogenesis in WDTC1-overexpressing cells. Furthermore, knockout of Med20in preadipocytes abolishes development of brown adipose tissues. Removing one allele of Med20in preadipocytes protects mice from diet-induced obesity and reverses weight gain in Cul4a-or Cul4b-depleted mice. Chromatin immunoprecipitation sequencing (ChIP-seq) analysis reveals that MED20 organizes the early adipogenic complex by bridging C/EBPβ and RNA polymerase II to promote transcription of the central adipogenic factor, PPARγ. Our findings have thus uncovered a critical role of MED20 in promoting adipogenesis, development of adipose tissue and diet-induced obesity.
- Published
- 2021
- Full Text
- View/download PDF
34. A One-Step Procedure for Facile Preparation of D-Glucopyranosides with a free 2-OH from O-Peracetylated β-D-Glucopyranose
- Author
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Liu, Mei-Zheng, Fan, Hong-Ni, Guo, Zhong-Wu, and Hui, Yong-Zheng
- Abstract
Glycosylations and deacetylations of 2-O-acetyl of O-peracetylated β-D-glucopyranose were realized in one step by reactions with 4.0 equivalents of alcohols and 1.5 equivalents of trifluoroborane etherate. Thus, various β-D-glucopyranosides with a free hydroxyl group on C-2 were conveniently prepared and applied for synthesis of Glcl → 2 linked disaccharides.
- Published
- 1996
- Full Text
- View/download PDF
35. Microcomputer system for automatic identification of theCryptococcus neoformansand its clinical application
- Author
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Yue-chen, Zheng, Jian-min, Xie, Bing, Wei, Zhao-ru, Zhu, Yan-qing, Wu, Shi-hong, Ni, Zhi-jian, Tan, Cai-ming, Luo, Xin, Liu, and Yan, Zhou
- Abstract
In this study, microcomputer image processing and pattern recognitiontechnology, and the knowledge of morphology and optical characteristics ofCryptococcus neoformanswere used for identification ofCryptococcus neoformans. Four groups of mice were lethally infected with standard strain, Wuhan strain, American B-2643 strain and Var. Shanghainesis of theCryptococcus neoformans. The samples collected included mice brain, lung, kidney, liver, small intestine tissue and were observed under a light microscope. More than 600 images of the fungus were input into a microcomputer. A system of computer for automatic identification of theCryptococcus neoformanswas developed. The technique involved image preprocessing, image segmenting, coding of line-length on the edge, curve fitting, extracting of image feature, building of image library and feature data bank etc. And then, 768 images of the clinical samples and other fungus samples whose morphological features tend to be confused withCryptococcus neoformanswere input into microcomputer and subjected to automatic identification. TheCryptococcus neoformanswas accurately identified within 15 min, and the consistence rate with results of routine culture was 98 %.
- Published
- 1995
- Full Text
- View/download PDF
36. Microcomputer system for automatic identification of the Cryptococcus neoformans and its clinical application
- Author
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Yue-chen, Zheng, Jian-min, Xie, Bing, Wei, Zhao-ru, Zhu, Yan-qing, Wu, Shi-hong, Ni, Zhi-jian, Tan, Cai-ming, Luo, Xin, Liu, and Yan, Zhou
- Abstract
Summary: In this study, microcomputer image processing and pattern recognitiontechnology, and the knowledge of morphology and optical characteristics ofCryptococcus neoformans were used for identification ofCryptococcus neoformans. Four groups of mice were lethally infected with standard strain, Wuhan strain, American B-2643 strain and Var. Shanghainesis of theCryptococcus neoformans. The samples collected included mice brain, lung, kidney, liver, small intestine tissue and were observed under a light microscope. More than 600 images of the fungus were input into a microcomputer. A system of computer for automatic identification of theCryptococcus neoformans was developed. The technique involved image preprocessing, image segmenting, coding of line-length on the edge, curve fitting, extracting of image feature, building of image library and feature data bank etc. And then, 768 images of the clinical samples and other fungus samples whose morphological features tend to be confused withCryptococcus neoformans were input into microcomputer and subjected to automatic identification. TheCryptococcus neoformans was accurately identified within 15 min, and the consistence rate with results of routine culture was 98 %.
- Published
- 1995
- Full Text
- View/download PDF
37. Synthesis and Characterization of Barium Sulfate Nanotubes.
- Author
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Xiao-Jing Lu, Xian-Wen Wei, Jian Sun, Yong-Hong Ni, Guang-Chao Zhao, and Yin Ye
- Subjects
BARIUM sulfate ,NANOTUBES ,CHEMICAL reactors ,TRANSMISSION electron microscopes ,SCANNING electron microscopes ,X-ray diffractometers - Abstract
Tubular barium sulfate, having diameters in the range of 200-350 nm and length up to 30 microns, was fabricated by a nanochannel reactor and characterized by scanning electron microscope, transmission electron microscope, and X-ray diffractometer. The process is very simple, efficient and easy to control, which can be used to prepare a wide range of tubular inorganic nanomaterials. [ABSTRACT FROM AUTHOR]
- Published
- 2004
- Full Text
- View/download PDF
38. Comparison of labeling methods and time course of traumatic brain injury-induced cell death in mice.
- Author
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Chengliang Luo, Xiping Chen, Hong Ni, Qianqian Li, Rui Yang, Yuxia Sun, Guangyou Zhu, and Luyang Tao
- Abstract
The article discusses a study which compared the roles of Propidium iodide (Pi) to transferase dUTP nick-end labeling (TUNEL) and Fluoro-Jade B staining in the detection of neural cell death and explored the cell death time course induced by traumatic brain injury (TBI). TUNEL labels apoptotic nuclei and used in cell death studies while Fluoro-Jade B is an anionic dye that stains cells and neurites of degenerating neurons. Results revealed that Pi labeling is more sensitive and reliable in detecting cell death and in estimating cell death time course.
- Published
- 2010
- Full Text
- View/download PDF
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