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Wu Z, Wang T, Chen J, Zhang Y, Lv G. Sweet corn association panel and genome-wide association analysis reveal loci for chilling-tolerant germination. Sci Rep 2024; 14:10791. [PMID: 38734751 PMCID: PMC11088700 DOI: 10.1038/s41598-024-61797-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 05/09/2024] [Indexed: 05/13/2024] Open
Abstract
Sweet corn is highly susceptible to the deleterious effects of low temperatures during the initial stages of growth and development. Employing a 56K chip, high-throughput single-nucleotide polymorphism (SNP) sequencing was conducted on 100 sweet corn inbred lines. Subsequently, six germination indicators-germination rate, germination index, germination time, relative germination rate, relative germination index, and relative germination time-were utilized for genome-wide association analysis. Candidate genes were identified via comparative analysis of homologous genes in Arabidopsis and rice, and their functions were validated using quantitative real-time polymerase chain reaction (qRT-PCR). The results revealed 35,430 high-quality SNPs, 16 of which were significantly correlated. Within 50 kb upstream and downstream of the identified SNPs, 46 associated genes were identified, of which six were confirmed as candidate genes. Their expression patterns indicated that Zm11ΒHSDL5 and Zm2OGO likely play negative and positive regulatory roles, respectively, in the low-temperature germination of sweet corn. Thus, we determined that these two genes are responsible for regulating the low-temperature germination of sweet corn. This study contributes valuable theoretical support for improving sweet corn breeding and may aid in the creation of specific germplasm resources geared toward enhancing low-temperature tolerance in sweet corn.
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Affiliation(s)
- Zhenxing Wu
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, 322100, China
| | - Tingzhen Wang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, 322100, China
| | - Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, 322100, China
| | - Yun Zhang
- Horticultural Research Institute, Jilin City Academy of Agricultural Sciences, Jilin, 132000, China
| | - Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, 322100, China.
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2
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Lv G, Li Y, Wu Z, Zhang Y, Li X, Wang T, Ren W, Liu L, Chen J, Zhang Y. Maize actin depolymerizing factor 1 (ZmADF1) negatively regulates pollen development. Biochem Biophys Res Commun 2024; 703:149637. [PMID: 38354464 DOI: 10.1016/j.bbrc.2024.149637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
The normal development of pollen grains and the completion of double fertilization in embryos are crucial for both the sexual reproduction of angiosperms and grain production. Actin depolymerizing factor (ADF) regulates growth, development, and responses to biotic and abiotic stress by binding to actin in plants. In this study, the function of the ZmADF1 gene was validated through bioinformatic analysis, subcellular localization, overexpression in maize and Arabidopsis, and knockout via CRISPR/Cas9. The amino acid sequence of ZmADF1 exhibited high conservation and a similar tertiary structure to that of ADF homologs. Subcellular localization analysis revealed that ZmADF1 is localized mainly to the nucleus and cytoplasm. The ZmADF1 gene was specifically expressed in maize pollen, and overexpression of the ZmADF1 gene decreased the number of pollen grains in the anthers of transgenic Arabidopsis plants. The germination rate of pollen and the empty seed shell rate in the fruit pods of the overexpressing plants were significantly greater than those in the wild-type (WT) plants. In maize, the pollen viability of the knockout lines was significantly greater than that of both the WT and the overexpressing lines. Our results confirmed that the ZmADF1 gene was specifically expressed in pollen and negatively regulated pollen quantity, vigor, germination rate, and seed setting rate. This study provides insights into ADF gene function and possible pathways for improving high-yield maize breeding.
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Affiliation(s)
- Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Yunfeng Li
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Zhengxin Wu
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Yahui Zhang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Xiangnan Li
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Tingzheng Wang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Wenchuang Ren
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Lei Liu
- College of Life Science & Biotechnology, Mianyang Normal University, Mianyang, 621000, China
| | - Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China.
| | - Yuanyuan Zhang
- College of Life Science & Biotechnology, Mianyang Normal University, Mianyang, 621000, China.
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Fang R, Lv G, Zhang X, Chen J, Chen X, Wang B. Preharvest 24-epibrassinolide treatment prolongs harvest duration and shelf life in sweet corn. Food Chem (Oxf) 2023; 7:100179. [PMID: 37583676 PMCID: PMC10423688 DOI: 10.1016/j.fochms.2023.100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/17/2023] [Accepted: 08/05/2023] [Indexed: 08/17/2023]
Abstract
Sweet corn is perishable and have limited harvest duration and shelf life due to their quality deterioration. Reactive oxygen species (ROS) are one of the most predominant factors for maintaining quality of sweet corn during and after harvest. Brassinosteroids (BRs) can enhance the activity of antioxidant enzymes and decrease the ROS level in plants. In this study, we found that a bioactive BR (24-epibrassinolide, EBR) treatment before harvest markedly inhibited change of quality indicators (MDA content, weight loss rate, and soluble sugar content) during and after harvest. Further analysis revealed that EBR promoted the activity and transcriptions of antioxidant enzymes, maintaining lower ROS level in kernels. Meanwhile, exogenous EBR increased the expression level of genes controlling sucrose transport in sweet corn kernels. Bioinformatics and binding analysis identified that BR transcription factor ZmBES1/ZmBZR1-10 might potentially bind to and upregulate transcriptions of antioxidant enzyme genes including SOD and POD genes, and sucrose transport-related genes including SUT and SWEET genes. These results indicated that exogenous application of EBR ameliorates quality during and after harvest by improving the antioxidant capacity and photosynthetic assimilates accumulation rate of sweet corn, thus prolonging harvest duration and shelf life in sweet corn.
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Affiliation(s)
- Ruiqiu Fang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang 322100, China
| | - Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang 322100, China
| | - Xianwen Zhang
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
| | - Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang 322100, China
| | - Xiaolong Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang 322100, China
| | - Bin Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
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Chen J, Bian Y, Wu Z, Li X, Wang T, Lv G. Accumulation Rule of Sugar Content in Corn Stalk. Plants (Basel) 2023; 12:1373. [PMID: 36987060 PMCID: PMC10055673 DOI: 10.3390/plants12061373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 06/19/2023]
Abstract
The primary parts of corn stalks are the leaves and the stems, which comprise the cortex and the pith. Corn has long been cultivated as an grain crops, and now it is a primary global source of sugar, ethanol, and biomass-generated energy. Even though increasing the sugar content in the stalk is an important breeding goal, progress has been modest in many breeding researchers. Accumulation is the gradual rise in quantity when new additions are made. The challenging characteristics of such sugar content in corn stalks are below the protein, bio-economy, and mechanical injury. Hence, in this research, plant water-content-enabled micro-Ribonucleic acids (PWC-miRNAs) were designed to increase the sugar content in corn stalks following an accumulation rule. High-throughput sequencing of the transcriptome, short RNAs, and coding RNAs was performed here; leaf and stem degradation from two early-maturing Corn genotypes revealed new information on miRNA-associated gene regulation in corn during the sucrose accumulation process. For sugar content in corn stalk, PWC-miRNAs were used to establish the application of the accumulation rule for data-processing monitoring throughout. Through simulation, management, and monitoring, the condition is accurately predicted, providing a new scientific and technological means to improve the efficiency of the construction of sugar content in corn stalks. The experimental analysis of PWC-miRNAs outperforms sugar content in terms of performance, accuracy, prediction ratio, and evaluation. This study aims to provide a framework for increasing the sugar content of corn stalk.
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Affiliation(s)
- Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China; (J.C.); (Z.W.); (X.L.); (T.W.)
| | - Yunlong Bian
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China;
| | - Zhenxing Wu
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China; (J.C.); (Z.W.); (X.L.); (T.W.)
| | - Xiangnan Li
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China; (J.C.); (Z.W.); (X.L.); (T.W.)
| | - Tingzhen Wang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China; (J.C.); (Z.W.); (X.L.); (T.W.)
| | - Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China; (J.C.); (Z.W.); (X.L.); (T.W.)
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Chen J, Cao J, Bian Y, Zhang H, Li X, Wu Z, Guo G, Lv G. Identification of Genetic Variations and Candidate Genes Responsible for Stalk Sugar Content and Agronomic Traits in Fresh Corn via GWAS across Multiple Environments. Int J Mol Sci 2022; 23:ijms232113490. [PMID: 36362278 PMCID: PMC9655584 DOI: 10.3390/ijms232113490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/10/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
The stem and leaves of fresh corn plants can be used as green silage or can be converted to biofuels, and the stalk sugar content and yield directly determine the application value of fresh corn. To identify the genetic variations and candidate genes responsible for the related traits in fresh corn, the genome-wide scan and genome-wide association analysis (GWAS) were performed. A total of 32 selective regions containing 172 genes were detected between sweet and waxy corns. Using the stalk sugar content and seven other agronomic traits measured in four seasons over two years, the GWAS identified ninety-two significant single nucleotide polymorphisms (SNPs). Most importantly, seven SNPs associated with the stalk sugar content were detected across multiple environments, which could explain 13.68–17.82% of the phenotypic variation. Accessions differing in genotype for certain significant SNPs showed significant variation in the stalk sugar content and other agronomic traits, and the expression levels of six important candidate genes were significantly different between two materials with different stalk sugar content. The genetic variations and candidate genes provide valuable resources for future studies of the molecular mechanism of the stalk sugar content and establish the foundation for molecular marker-assisted breeding of fresh corn.
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Affiliation(s)
- Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310004, China
| | - Jinming Cao
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Yunlong Bian
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Hui Zhang
- Zhejiang Agricultural Technology Extension Center, Hangzhou 310004, China
| | - Xiangnan Li
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310004, China
| | - Zhenxing Wu
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310004, China
| | - Guojin Guo
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310004, China
| | - Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310004, China
- Correspondence: ; Tel.: +86-013454997051
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Lv G, Chen X, Ying D, Li J, Fan Y, Wang B, Fang R. Marker-assisted pyramiding of γ-tocopherol methyltransferase and glutamate formiminotransferase genes for development of biofortified sweet corn hybrids. PeerJ 2022; 10:e13629. [PMID: 35818359 PMCID: PMC9270877 DOI: 10.7717/peerj.13629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/02/2022] [Indexed: 01/22/2023] Open
Abstract
Micronutrients, including vitamins, minerals, and other bioactive compounds, have tremendous impacts on human health. Much progress has been made in improving the micronutrient content of inbred lines in various crops through biofortified breeding. However, biofortified breeding still falls short for the rapid generation of high-yielding hybrids rich in multiple micronutrients. Here, we bred multi-biofortified sweet corn hybrids efficiently through marker-assisted selection. Screening by molecular markers for vitamin E and folic acid, we obtained 15 inbred lines carrying favorable alleles (six for vitamin E, nine for folic acid, and three for both). Multiple biofortified corn hybrids were developed through crossing and genetic diversity analysis.
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Affiliation(s)
- Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang, China
| | - Xiaolong Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang, China
| | - Duo Ying
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang, China
| | - Jiansheng Li
- National Maize Improvement Center of China, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Yinghu Fan
- Chuxiong Academy of Agricultural Sciences, Chuxiong, China
| | - Bin Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Ruiqiu Fang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang, China
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7
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Song N, Kan S, Pang Q, Mei H, Zheng H, Li D, Cui F, Lv G, An R, Li P, Xiong Z, Fan S, Zhang M, Chen Y, Qiao Q, Liang X, Cui M, Li D, Liao Q, Li X, Liu W. A prospective study on vulvovaginal candidiasis: multicentre molecular epidemiology of pathogenic yeasts in China. J Eur Acad Dermatol Venereol 2021; 36:566-572. [PMID: 34908189 DOI: 10.1111/jdv.17874] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Vulvovaginal candidiasis (VVC) is frequent in women of reproductive age, but very limited data are available on the epidemiology in cases of VVC in China. OBJECTIVES The current study has been conducted to reveal the prevalence, species distribution of yeast causing VVC and molecular genetics of Candida albicans in China. METHODS Vaginal swabs were collected from 543 VVC outpatients recruited in 12 hospitals in China between September 2017 and March 2018. They were preliminarily incubated on Sabouraud dextrose agar and then positive subjects of which were then transmitted to our institute for further identification. CHROMagar™ was used to isolate Candida species, and all isolates were finally identified by DNA sequencing. Multilocus sequence typing (MLST) was used to analyse phylogenetic relationships of the various C. albicans isolates. RESULTS Eleven different yeast species were identified in 543 isolates, among which C. albicans (84.7%) was the most frequent, followed by C. glabrata (8.7%). We obtained 117 unique diploid sequence types from 451 clinical C. albicans isolates and 92 isolates (20.4%) belonged to a New Clade. All the strains appearing in the New Clade were from northern China and they were isolated from non-recurrent VVC. CONCLUSIONS Our findings suggest that C. albicans are still the main cause of VVC in China and the majority of C. albicans isolates belongs to Clade 1 with DST 79 and DST 45 being two most common. Moreover, the New Clade revealed in our study seems to be specific to northern China.
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Affiliation(s)
- N Song
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - S Kan
- Shanghai Skin Disease Hospital, Department of Medical Mycology, Tongji University School of Medicine, Shanghai, China
| | - Q Pang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H Zheng
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - D Li
- Department of Microbiology/Immunology, Georgetown University, Washington, DC, USA
| | - F Cui
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - R An
- The First Affiliated Teaching Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Li
- Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Z Xiong
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fan
- Peking University Shenzhen Hospital, Shenzhen, China
| | - M Zhang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Chen
- The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Q Qiao
- The Affiliated Hospital of Inner Mongolia Medical University, Huhehaote, China
| | - X Liang
- Peking University People's Hospital, Beijing, China
| | - M Cui
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - D Li
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Q Liao
- Department of Obstetrics and Gynecology, Beijing Tsinghua Changgung Hospital, School of Clinical Medical, Tsinghua University, Beijing, China
| | - X Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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8
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Yang Y, Wang P, Zheng J, Lv G, Mao R, Zhou D. Cerebral fungal abscess resembling high-grade glioma: A case report in an immunocompromised patient. Neurochirurgie 2020; 66:494-496. [PMID: 33053402 DOI: 10.1016/j.neuchi.2020.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/29/2020] [Accepted: 09/02/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Y Yang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - P Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - J Zheng
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - G Lv
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - R Mao
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - D Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China.
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Jiang L, Lv G, Liu L, Wu B, Xu Z, Li Y. Characterization of the complete mitochondrial genome of the paddy frog Fejervarya multistriata (Anura: Dicroglossidae) and its phylogeny. Mitochondrial DNA B Resour 2020. [DOI: 10.1080/23802359.2020.1731359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Lichun Jiang
- Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology, Mianyang Normal University, Mianyang, Sichuan, P.R. China
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang, Sichuan, P.R. China
| | - Guihua Lv
- Dongyang Institute of Maize Research, Zhejiang Academy of Agricultural Sciences, Dongyang, Zhejiang, P.R. China
| | - Lei Liu
- Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology, Mianyang Normal University, Mianyang, Sichuan, P.R. China
| | - Bingxiu Wu
- Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology, Mianyang Normal University, Mianyang, Sichuan, P.R. China
| | - Zhongwen Xu
- Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology, Mianyang Normal University, Mianyang, Sichuan, P.R. China
| | - Yu Li
- Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology, Mianyang Normal University, Mianyang, Sichuan, P.R. China
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Lv G, Zhang DL, Wang D, Pan L, Liu Y. Synthesis, Crystal Structure, Anti-Bone Cancer Activity and Molecular Docking Investigations of the Heterocyclic Compound 1-((2S,3S)-2-(Benzyloxy)Pentan-3-yl) -4-(4-(4-(4-Hydroxyphenyl)Piperazin-1-yl) Phenyl)-1H-1,2,4-Triazol-5(4H)-One. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619070205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Qiao R, Li X, Han X, Wang K, Lv G, Ren G, Li X. Population structure and genetic diversity of four Henan pig populations. Anim Genet 2019; 50:262-265. [PMID: 30883844 DOI: 10.1111/age.12775] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2019] [Indexed: 12/22/2022]
Abstract
To investigate the population structure and genetic diversity of Henan indigenous pig breeds, samples from a total of 78 pigs of 11 breeds were collected, including four pig populations from Henan Province, three Western commercial breeds, three Chinese native pig breeds from other provinces and one Asian wild boar. The genotyping datasets were obtained by genotyping-by-sequencing technology. We found a high degree of polymorphism and rapid linkage disequilibrium decay in Henan pigs. A neighbor-joining tree, principal component analysis and structure analysis revealed that the Huainan and Erhualian pigs were clustered together and that the Queshan black pigs were clearly grouped together but that the Nanyang and Yuxi pigs were extensively admixed with Western pigs. In addition, heterozygosity values might indicate that Henan indigenous pigs, especially the Queshan black and Huainan pigs, were subjected to little selection during domestication. The results presented here indicate that Henan pig breeds were admixed from Western breeds, especially Nanyang and Yuxi pigs. Therefore, establishment of purification and rejuvenation systems to implement conservation strategies is urgent. In addition, it is also necessary to accelerate genetic resources improvement and utilization using modern breeding technologies, such as genomic selection and genome-wide association studies.
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Affiliation(s)
- R Qiao
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - K Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Lv
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Ren
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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He Y, Zheng H, Li X, Lv G, Liu W. 881 Comparison of Sensititre YeastOne® colorimetric antifungal panel with routine CLSI tests against dematiaceos fungi. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Zhan P, Dukik K, Li D, Sun J, Stielow JB, Gerrits van den Ende B, Brankovics B, Menken SBJ, Mei H, Bao W, Lv G, Liu W, de Hoog GS. Phylogeny of dermatophytes with genomic character evaluation of clinically distinct Trichophyton rubrum and T. violaceum. Stud Mycol 2018; 89:153-175. [PMID: 29910521 PMCID: PMC6002342 DOI: 10.1016/j.simyco.2018.02.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Trichophyton rubrum and T. violaceum are prevalent agents of human dermatophyte infections, the former being found on glabrous skin and nail, while the latter is confined to the scalp. The two species are phenotypically different but are highly similar phylogenetically. The taxonomy of dermatophytes is currently being reconsidered on the basis of molecular phylogeny. Molecular species definitions do not always coincide with existing concepts which are guided by ecological and clinical principles. In this article, we aim to bring phylogenetic and ecological data together in an attempt to develop new species concepts for anthropophilic dermatophytes. Focus is on the T. rubrum complex with analysis of rDNA ITS supplemented with LSU, TUB2, TEF3 and ribosomal protein L10 gene sequences. In order to explore genomic differences between T. rubrum and T. violaceum, one representative for both species was whole genome sequenced. Draft sequences were compared with currently available dermatophyte genomes. Potential virulence factors of adhesins and secreted proteases were predicted and compared phylogenetically. General phylogeny showed clear gaps between geophilic species of Arthroderma, but multilocus distances between species were often very small in the derived anthropophilic and zoophilic genus Trichophyton. Significant genome conservation between T. rubrum and T. violaceum was observed, with a high similarity at the nucleic acid level of 99.38 % identity. Trichophyton violaceum contains more paralogs than T. rubrum. About 30 adhesion genes were predicted among dermatophytes. Seventeen adhesins were common between T. rubrum and T. violaceum, while four were specific for the former and eight for the latter. Phylogenetic analysis of secreted proteases reveals considerable expansion and conservation among the analyzed species. Multilocus phylogeny and genome comparison of T. rubrum and T. violaceum underlined their close affinity. The possibility that they represent a single species exhibiting different phenotypes due to different localizations on the human body is discussed.
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Affiliation(s)
- P Zhan
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Dermatology Hospital of Jiangxi Provinces, Jiangxi Dermatology Institute, Nanchang, China.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - K Dukik
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - D Li
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Georgetown University Medical Center, Department of Microbiology and Immunology, Washington, DC, USA
| | - J Sun
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - J B Stielow
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | | | - B Brankovics
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - S B J Menken
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Bao
- Nanjing General Hospital of Nanjing Command, Nanjing, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - G S de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
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Chen B, Fan G, Sun W, Shang X, Shi S, Wang S, Lv G, Wu C. Usefulness of diffusion-tensor MRI in the diagnosis of Parkinson variant of multiple system atrophy and Parkinson's disease: a valuable tool to differentiate between them? Clin Radiol 2017; 72:610.e9-610.e15. [DOI: 10.1016/j.crad.2017.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/21/2016] [Accepted: 02/03/2017] [Indexed: 11/26/2022]
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15
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Chen F, Dai Z, Kang Y, Lv G, Keller ET, Jiang Y. Effects of zoledronic acid on bone fusion in osteoporotic patients after lumbar fusion. Osteoporos Int 2016; 27:1469-1476. [PMID: 26556733 PMCID: PMC4792656 DOI: 10.1007/s00198-015-3398-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/03/2015] [Indexed: 10/22/2022]
Abstract
UNLABELLED Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the duration of time to fusion, improves the fusion rate, prevents the subsequent adjacent vertebral compression fractures, improves the clinical outcomes, and prevents immobilization-induced bone loss in the hip. INTRODUCTION The objective of the study was to explore the effects of zoledronic acid on the healing process in osteoporotic patients following spinal fusion in a randomized, placebo-controlled, and triple-blinded study. METHODS Seventy-nine osteoporotic patients with single-level degenerative spondylolisthesis were randomly assigned to receive either zoledronic acid infusion (zoledronic acid group) or saline infusion (controls) after spinal fusion. Functional radiography and CT scans were used to evaluate fusion status. Bone formation was graded into three categories: Grade A (bridging bone bonding with adjacent vertebral bodies), Grade B (bridging bone bonding with either superior or inferior vertebral body), or Grade C (incomplete bony bridging). A solid fusion was defined as less than 5° of angular motion with Grade A or B bone formation. Adjacent vertebral compression fractures (VCF) were assessed on MRI at 12 months after surgery. Serum level of carboxy terminal cross-linked telopeptide of type I collagen (β-CTX) and amino-terminal propeptide of type I procollagen (PINP) was measured. Bone mineral density (BMD) was measured by DXA. Oswestry Disability Index (ODI) was used to assess the clinical outcomes. RESULTS Grade A or B bridging bone was more frequently observed in zoledronic acid group at 3, 6, and 9 months post-operation compared to the control group (p < 0.05). At 12 -months post-operation, bridging bone and solid fusion were not significantly different between groups. No patients in zoledronic acid group showed aVCF, whereas six patients (17 %) in the control group did (p < 0.05). Both β-CTX and PINP were suppressed in zoledronic acid group. BMD at the femoral neck decreased rapidly and did not return to the preoperative level in the controls at 3 (-1.4 %), 6 (-2.5 %), and 12 (-0.8 %) months after surgery. Zoledronic acid prevented this immobilization-induced bone loss and increased BMD. ODI showed the improved clinical outcomes compared with controls at 9 and 12 months post-surgery. CONCLUSION Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the time to fusion, improves the fusion rate, prevents subsequent aVCFs, and improves clinical outcomes.
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Affiliation(s)
- F Chen
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Z Dai
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China.
| | - Y Kang
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - G Lv
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - E T Keller
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Y Jiang
- Osteoporosis and Arthritis Lab, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
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16
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Han X, Liu M, Wang S, Qian X, Lv G, Ma L, Zeng C, Shi Y. An Integrative Analysis of the Putative Gefitinib-Resistant Genes in a Lung Cancer Cell Line Model System. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv043.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Chen Y, Yu C, Lv G, Cao H, Yang S, Zhang Y, Yu J, Pan X, Li L. Rapid large-scale culturing of microencapsulated hepatocytes: a promising approach for cell-based hepatic support. Transplant Proc 2015; 46:1649-57. [PMID: 24935342 DOI: 10.1016/j.transproceed.2014.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/13/2014] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The efficacy of any bioartificial liver device requires both rapid production and proper bioactivity of the cells for the bioreactor. The goal of this study was to observe the effect of spinner speed and cell density on the proliferation of microencapsulated immortalized human hepatocytes (HepLL) and human hepatoma (HepG2) cells. MATERIALS AND METHODS Alginate-chitosan microcapsulated HepG2 and HepLL cells were randomly divided into 2 groups, and each group was further divided into 8 subgroups according to embedded cell density and spinner speed. The growth, metabolism, and functions of the encapsulated cells in each group were evaluated. RESULTS In each group, the cell number, ammonium removal, albumin synthesis, and diazepam clearance increased significantly with the spinner speed, whereas embedded cell density had no impact. Albumin synthesis, removal of ammonium, and diazepam clearance were significantly higher in the microencapsulated HepLL groups than in HepG2 cells at any time point, without any significant difference in cell numbers. CONCLUSIONS Spinner culture significantly promoted microencapsulated HepLL and HepG2 cell bioactivity. Wrapped cells had optimal function on day 10 in rolling culture groups. These data show that HepLL cells would be a promising candidate for cell-based liver support therapy.
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Affiliation(s)
- Y Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; Infectious Disease Department, The First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - C Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - G Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - H Cao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Y Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - J Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - X Pan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - L Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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He ZP, Wang BY, Lv G, Li CL, Yuan LY, Xu R, Chen K, Wang JY. Visible and near-infrared imaging spectrometer and its preliminary results from the Chang'E 3 project. Rev Sci Instrum 2014; 85:083104. [PMID: 25173243 DOI: 10.1063/1.4891865] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In order to conduct lunar surface mineral composition studies and content analysis, the Visible and Near-infrared Imaging Spectrometer (VNIS), one of the scientific payloads of the Chang'E 3 Yutu rover, has been developed to detect lunar surface objects and to obtain their reflectance spectra and geometric images. This is achieved with a 45° visual angle and at a height of 0.69 m. VNIS is equipped with a lunar surface calibration function, and the spectral range is 0.45-2.40 μm with a spectral resolution of 2-12 nm. It is capable of synchronously acquiring the full spectrum of lunar surface objects and in situ calibration. Here, we describe the VNIS and explain the preliminary results of the lunar surface exploration and calibration, which provides valuable information for scientific data processing and applications.
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Affiliation(s)
- Z P He
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - B Y Wang
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - G Lv
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - C L Li
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - L Y Yuan
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - R Xu
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - K Chen
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
| | - J Y Wang
- Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
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Cheng J, Zhang Z, Zheng Z, Lv G, Wang L, Tian B, Hua Y. Antioxidative and Hepatoprotective Activities of Deinoxanthin-Rich Extract from Deinococcus radiodurans R1 against Carbon Tetrachloride-Induced Liver Injury in Mice. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i4.14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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20
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Ma H, Lv G, Wang B. Does surgery influence the outcome of Aspergillus osteomyelitis? Clin Microbiol Infect 2014; 20:O788. [PMID: 24666933 DOI: 10.1111/1469-0691.12588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 02/05/2014] [Accepted: 02/06/2014] [Indexed: 02/01/2023]
Affiliation(s)
- H Ma
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
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Wang Y, Yin L, Lv G, Xu Y, Xu L, Qi Y, Zheng L, Peng J. Multiple compounds determination and fingerprint analysis ofAgrimonia pilosaLedeb by high-performance liquid chromatography. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li Y, Liu YJ, Lv G, Zhang DL, Zhang L, Li D. Propofol protects against hydrogen peroxide-induced apoptosis in cardiac H9c2 cells is associated with the NF-κB activation and PUMA expression. Eur Rev Med Pharmacol Sci 2014; 18:1517-1524. [PMID: 24899612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND AND AIMS Treatment with propofol has been found to attenuate oxidative stress injury in rat cardiac cells through the inhibition of programmed cell death. However, the underlying mechanism of this beneficial effect is not clear. Previous studies showed NF-κB (NF-κB) could be activated after oxidative stress in cardiac cells, and p53 up-regulated modulator of apoptosis (PUMA) is a direct target of NF-κB and mediates oxidative stress -induced apoptosis. Here, we report that propofol protects cardiac H9c2 cells from hydrogen peroxide (H2O2)-induced apoptosis by preventing the activation of NF-κB and PUMA upregulation. MATERIALS AND METHODS We first determined NF-κB activity, PUMA expression, proliferation and apoptosis after hydrogen peroxide treatment of the H9c2 cell line using electrophoretic mobility shift assay (EMSA), western blot assay, MTT and annexin V/PI assay. We, then, examined the effect of inhibition of NF-κB activity on the PUMA expression and hydrogen peroxide (H2O2)-induced apoptosis.We next examined the effect of inhibition of PUMA on hydrogen peroxide (H2O2)-induced apoptosis. In the end, we examined the effect of propofol pretreatment on NF-κB activity, PUMA expression and hydrogen peroxide (H2O2)-induced apoptosis. RESULTS We show that H2O2 treatment led to increases in NF-κB activity, PUMA protein levels in cardiac H9c2 cells. The induction of PUMA was mediated by the p65 component of NF-κB. The apoptotic effect of PUMA induction by H2O2 was in an NF-κB-dependent manner. We, further, demonstrate that pretreatment with propofol significantly decreased H2O2-induced apoptosis. Furthermore, propofol inhibits H2O2 induced NF-κB activity and subsequent PUMA expression. CONCLUSIONS our results reveal a new mechanism by which propofol inhibits H2O2-induced injury in cardiac H9c2 cells via decreasing NF-κB activation and PUMA expression. This inhibition improves cell survival, which provides a novel explanation for the pleiotropic effects of propofol that benefit the cardiac cells.
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Affiliation(s)
- Y Li
- Department of Anesthesiology, Department of Clinical Laboratory, Cardiovascular Disease Hospital, Department of Internal Medicine-Cardiovascular; the Affiliated Hospital of Qingdao University, Qingdao, China.
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Wang W, Lin W, Hong B, Li X, Zhang M, Zhang L, Lv G. Effect of triptolide on malignant peripheral nerve sheath tumours in vitro and in vivo. J Int Med Res 2013; 40:2284-94. [PMID: 23321185 DOI: 10.1177/030006051204000626] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE Malignant peripheral nerve sheath tumours (MPNSTs) are invasive, hard-to-treat, soft tissue sarcomas. In this study, in vitro and in vivo effects of triptolide were investigated using human MPNST cell lines. METHODS Cultured STS-26T and ST88-14 cells were treated with 0-100 ng/ml triptolide (for determination of cell proliferation by sulphorhodamine B assay), with 12.5 ng/ml or 25 ng/ml triptolide (for analysis of caspase activity, effects on apoptotic pathway intermediates [by Western blots and flow cytometry], and for measurement of vascular endothelial growth factor [VEGF] and epidermal growth factor receptor [EGFR] levels by enzyme-linked immunosorbent assay). A xenograft model was established by injection of STS-26T cells into nude mice, and the effects of 250 μg/kg triptolide on tumour growth and apoptosis were compared with controls. RESULTS Triptolide significantly inhibited cell proliferation and induced apoptosis in vitro, through activation of caspases, in a dose- and time-dependent manner; VEGF and EGFR levels were suppressed. In vivo, triptolide inhibited the growth of STS-26T xenografts and reduced apoptosis. CONCLUSION Triptolide may have a therapeutic benefit in MPNST treatment.
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Affiliation(s)
- W Wang
- Department of General Surgery, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.
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Abstract
This meta-analysis evaluated the correlations between C-reactive protein (CRP) and obesity in Chinese adults and children. We searched three Chinese databases [Wanfang, WEIPU, and Chinese National Knowledge Infrastructure (CNKI)] in addition to PubMed. The search was restricted to only Chinese studies published online before January 9, 2013. Data from 28 articles were independently abstracted by two reviewers. The articles' characteristics were abstracted as follows: 1) first author name; 2) year of publication; 3) study population; 4) sample size; 5) sex, age, body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), and CRP level of the study population; 6) Pearson correlation coefficients, Spearman correlation coefficients, or odds ratios between CRP level and obesity. The metaanalysis was conducted to pool the Pearson correlation coefficients using a random-effects model. The pooled Pearson correlation coefficient between CRP and BMI was 0.45 [95% confidence interval (CI): 0.33-0.56] in Chinese adults and 0.46 (95% CI: 0.31-0.62) in Chinese children, and the pooled Pearson correlation coefficient was 0.32 (95% CI: 0.24-0.40) in the general Chinese population and 0.53 (95% CI: 0.42-0.64) in the obese Chinese population. Significant correlation was thus found between CRP and obesity in Chinese adults and children.
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Affiliation(s)
- Y Zhao
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Zhou B, Liu M, Lv G, Zheng H, Wang Y, Sun J, Hou J. Quantification of hepatitis B surface antigen and E antigen: correlation between Elecsys and architect assays. J Viral Hepat 2013; 20:422-9. [PMID: 23647959 DOI: 10.1111/jvh.12044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 10/29/2012] [Indexed: 12/20/2022]
Abstract
Quantification of hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) and their change model during treatment are emerging as a useful tool for assessing the outcome of hepatitis B virus (HBV) infection and predicting the efficacy of antiviral therapy. The aim of this study was to compare the performance of the Elecsys and Architect assays for HBsAg and HBeAg quantification. Quantification of HBsAg and HBeAg, determined by these two assays, were assessed in 1292 sera from patients with chronic hepatitis B(CHB). HBeAg quantification in serum was performed by calibrating the results through HBeAg Paul-Ehrlich international (PEI) reference standard. The HBV genotype was determined by direct sequencing and phylogenetic analysis. Of 1292 samples, the distribution of genotype was 514 (39.78%) genotype B, 776 (60.06%) genotype C, 2 (0.16%) genotype D. The results of HBsAg and HBeAg quantification between the Architect and Elecsys assays were significantly correlated (HBsAg: r = 0.939; HBeAg: r = 0.987), independent of HBV genotype and treatment phase. The mean differences between the two methods (the log10 [Elecsys] - the log10 [Architect]) were 0.075 log10 IU/mL and -0.149 log10 PE IU/mL in quantifying HBsAg and HBeAg, respectively. This study demonstrates a high correlation between the Elecsys and the Architect assays in quantifying HBsAg and HBeAg, regardless of HBV genotype. Both the two assays can be used to monitor the HBsAg and HBeAg levels in patients with chronic hepatitis B.
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Affiliation(s)
- B Zhou
- Institute of Hepatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zhao Y, Lv G. Influence of temperature and storage duration on measurement of activated partial thromboplastin time, D-dimers, fibrinogen, prothrombin time and thrombin time, in citrate-anticoagulated whole blood specimens. Int J Lab Hematol 2013; 35:566-70. [PMID: 23718185 DOI: 10.1111/ijlh.12113] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 04/15/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Zhao
- Department of Laboratory Medicine; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou China
| | - G. Lv
- Department of Laboratory Medicine; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou China
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Wang X, Wang H, He B, Hui Y, Lv G, Li L, Wen H. Virological and molecular characterization of Kaposi’s sarcoma-associated herpesvirus strains from Xinjiang, China. Eur J Clin Microbiol Infect Dis 2011; 31:53-9. [DOI: 10.1007/s10096-011-1274-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Accepted: 04/12/2011] [Indexed: 10/18/2022]
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Pan X, Du W, Yu X, Sheng G, Cao H, Yu C, Lv G, Huang H, Chen Y, Li J, Li L. Establishment and Characterization of Immortalized Porcine Hepatocytes for the Study of Hepatocyte Xenotransplantation. Transplant Proc 2010; 42:1899-906. [DOI: 10.1016/j.transproceed.2009.11.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2009] [Accepted: 11/23/2009] [Indexed: 10/19/2022]
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Abstract
In this paper, we investigate knowledge reasoning within a simple framework called knowledge structure. We use variable forgetting as a basic operation for one agent to reason about its own or other agents\' knowledge. In our framework, two notions namely agents\' observable variables and the weakest sufficient condition play important roles in knowledge reasoning. Given a background knowledge base and a set of observable variables for each agent, we show that the notion of an agent knowing a formula can be defined as a weakest sufficient condition of the formula under background knowledge base. Moreover, we show how to capture the notion of common knowledge by using a generalized notion of weakest sufficient condition. Also, we show that public announcement operator can be conveniently dealt with via our notion of knowledge structure. Further, we explore the computational complexity of the problem whether an epistemic formula is realized in a knowledge structure. In the general case, this problem is PSPACE-hard; however, for some interesting subcases, it can be reduced to co-NP. Finally, we discuss possible applications of our framework in some interesting domains such as the automated analysis of the well-known muddy children puzzle and the verification of the revised Needham-Schroeder protocol. We believe that there are many scenarios where the natural presentation of the available information about knowledge is under the form of a knowledge structure. What makes it valuable compared with the corresponding multi-agent S5 Kripke structure is that it can be much more succinct.
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Zhao J, Liu W, Lv G, Shen Y, Wu S. Protothecosis successfully treated with amikacin combined with tetracyclines. Fallbericht. Protothecose erfolgreich mit Amikacin plus Tetracyclinen behandelt. Mycoses 2004; 47:156-8. [PMID: 15078433 DOI: 10.1046/j.1439-0507.2003.00955.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Summary We report a case of protothecosis in an 18-year-old female student caused by Prototheca zopfii successfully treated with amikacin combined with tetracyclines. Zusammenfassung Es wird über eine Protothecose, verursacht durch Prototheca zopfii, bei einer 18-jährigen Studentin berichtet, die erfolgreich mit Amikacin in Kombination mit Tetracyclinen behandelt wurde.
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Affiliation(s)
- J Zhao
- Department of Medical Mycology, Institute of Dermatology, Peking Union Medical College and Chinese Academy of Medical Sciences, Nanjing, China
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