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Zhu, Wen-Jiang,Huang, Chu-Ying,Li, Chuan,Peng, Wei,Wen, Tian-Fu,Yan, Lv-Nan,Li, Bo,Wang, Wen-Tao,Xu, Ming-Qing,Yang, Jia-Yin,Jiang, Li Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.12
Background: The prognosis of patients with hepatocellular carcinoma (HCC) after curative resection varies greatly. Few studies had investigated the risk factors for early recurrence (recurrence-free time ${\leq}$ 1 year) of hepatitis B virus (HBV)-related HCCs meeting Milan criteria. Methods: A retrospective analysis was performed on the 224 patients with HCC meeting Milan criteria who underwent curative liver resection in our center between February 2007 and March 2012. The overall survival (OS) rate, recurrence-free survival (RFS) rate and risk factors for early recurrence were analyzed. Results: After a median follow-up of 33.3 months, HCC reoccurred in 105 of 224 patients and 32 died during the period. The 1-, 3- and 5-year OS rates were 97.3%, 81.6% and 75.6% respectively, and the 1-, 3- and 5-year RFS rates were 73.2%, 53.7% and 41.6%. Cox regression showed alpha-fetoprotein (AFP) > 800 ng/ml (HR 2.538, 95% CI 1.464-4.401, P=0.001), multiple tumors (HR 2.286, 95% CI 1.123-4.246, P=0.009) and microvascular invasion (HR 2.518, 95% CI 1.475-4.298, P=0.001) to be associated with early recurrence (recurrence-free time ${\leq}$ 1-year) of HCC meeting Milan criteria. Conclusions: AFP > 800 ng/ml, multiple tumors and microvascular invasion are independent risk factors affecting early postoperative recurrence of HCC. In addition resection appears capable of replacing liver transplantation in some situations with safety and a better outcome.
( Jiang Li Juan ),( Wen Juan Wu ),( Hai Wu ),( Son Sik Ryang ),( Jian Zhou ),( Wei Wu ),( Tao Li ),( Jian Guo ),( Hong Hai Wang ),( Shui Hua Lu ),( Yao Li ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.9
We combined real-time RT-PCR and real-time PCR (R/P) assays using a hydrolysis probe to detect Mycobacterium tuberculosis complex (MTBC)-specific 16S rRNA and its rRNA gene (rDNA). The assay was applied to 28 nonrespiratory and 207 respiratory specimens from 218 patients. Total nucleic acids (including RNA and DNA) were extracted from samples, and results were considered positive if the repeat RT-PCR threshold cycle was ≤35 and the ratio of real-time RT-PCR and real-time PCR load was ≥1.51. The results were compared with those from existing methods, including smear, culture, and real-time PCR. Following resolution of the discrepant results between R/P assay and culture, the overall sensitivity, specificity, positive predictive values (PPV), and negative predictive values (NPV) of all samples (including nonrespiratory and respiratory specimens) were 98.2%, 97.2%, 91.7%, and 99.4%, respectively, for R/P assay, and 83.9%, 89.9%, 72.3%, and 94.7%, respectively, for real-time PCR. Furthermore, the R/P assay of four patient samples showed a higher ratio before treatment than after several days of treatment. We conclude that the R/P assay is a rapid and accurate method for direct detection of MTBC, which can distinguish viable and nonviable MTBC, and thus may guide patient therapy and public health decisions.
Isolation, Culture and Identification of Porcine Skeletal Muscle Satellite Cells
Li, Bo-jiang,Li, Ping-hua,Huang, Rui-hua,Sun, Wen-xing,Wang, Han,Li, Qi-fa,Chen, Jie,Wu, Wang-jun,Liu, Hong-lin Asian Australasian Association of Animal Productio 2015 Animal Bioscience Vol.28 No.8
The objective of this study was to establish the optimum protocol for the isolation and culture of porcine muscle satellite cells. Mononuclear muscle satellite cells are a kind of adult stem cell, which is located between the basal lamina and sarcolemma of muscle fibers and is the primary source of myogenic precursor cells in postnatal muscle. Muscle satellite cells are a useful model to investigate the mechanisms of muscle growth and development. Although the isolation and culture protocols of muscle satellite cells in some species (e.g. mouse) have been established successfully, the culture system for porcine muscle satellite cells is very limited. In this study, we optimized the isolation procedure of porcine muscle satellite cells and elaborated the isolation and culture process in detail. Furthermore, we characterized the porcine muscle satellite cells using the immunofluorecence. Our study provides a reference for the isolation of porcine muscle satellite cells and will be useful for studying the molecular mechanisms in these cells.
A NEURAL NETWORK EXPERT SYSTEM FOR AERONAUTIC MAINTENANCE QUALITY EVALUATION
Li, Jiang Wen,Jun, Li Ting,He, Liu Long 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1
It is a new way for AI to apply ANNs (Artificial Neural Networks) to expert system. ANNs provide an effective solution to the provlems encountered in building systems that emulate a management expert. In this artical, taking the advantage of learning algorithms of ANNs to simulate management experts experience, we build an expert system for aeronautic maintenance quality evaluation. Results showed that it is practicable and reliable.
Study on economic performances of multi-span suspension bridges part 2: parametric study
Li-wen Zhang,Ru-cheng Xiao,Bin Sun,Yang Jiang,Xue-yi Zhang,Dong-li Zhuang,Yun-gang Zhou,Xue Tu 국제구조공학회 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.47 No.2
Economic performances of consecutive multi-span suspension bridges are studied. The material amount and cost estimation formulas of the bridges have been derived in the part 1 of the study. A parametric study is carried out based on the formulas for investigating the different factors’ effect on the bridge cost. The factors include the bridge sag, the bridge span, the bridge foundation and the environment condition, etc. Then, an economical layout of the bridges is proposed for different conditions. Lastly, a selection of suspension bridge types is discussed based on the economy of bridges.
Study on economic performances of multi-span suspension bridges part 1: simple estimation formulas
Li-wen Zhang,Ru-cheng Xiao,Bin Sun,Yang Jiang,Xue-yi Zhang,Dong-li Zhuang,Yun-gang Zhou,Xue Tu 국제구조공학회 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.47 No.2
A study on economic performances of consecutive multi-span suspension bridges is carried out. In this part of the study, material amount and structural cost estimation formulas of the bridges is derived based on the structural ultimate carrying capacity. The bridge cost includes the part of superstructure and the part of substructure. Three types of bridge foundations, bored piles, concrete caissons and floating foundations, are considered in substructure. These formulas are to be used for the parametric study of the bridge cost in order to define its more economical layout under different conditions in the part two of the study.
Li, Wen-Jun,Kroppenstedt, Reiner M.,Wang, Dong,Tang, Shu-Kun,Lee, Jae-Chan,Park, Dong-Jin,Kim, Chang-Jin,Xu, Li-Hua,Jiang, Cheng-Lin Microbiology Society 2006 International journal of systematic and evolutiona Vol.56 No.5
<P>Five novel Nocardiopsis strains isolated from hypersaline soils in China were subjected to a polyphasic analysis to determine their taxonomic position. All of the novel isolates could grow on agar plates at NaCl concentrations of up to 18 % (w/v), with optimum growth at 5-8 %. The DNA G+C contents of the novel strains ranged from 67.9 to 73.2 mol%. The morphological and chemotaxonomic characteristics of the isolates matched those described for members of the genus Nocardiopsis. Based on their 16S rRNA gene sequence analysis, DNA-DNA hybridization values and phenotypic characteristics, including the composition of cell-wall amino acids and sugars, menaquinones, polar lipids and cellular fatty acids, the isolates are proposed as representing five novel species of the genus Nocardiopsis. The novel species are proposed as Nocardiopsis gilva sp. nov. [type strain YIM 90087T (=KCTC 19006T=CCTCC AA 2040012T=DSM 44841T)], Nocardiopsis rosea sp. nov. [type strain YIM 90094T (=KCTC 19007T=CCTCC AA 2040013T=DSM 44842T), Nocardiopsis rhodophaea sp. nov. [type strain YIM 90096T (=KCTC 19049T=CCTCC AA 2040014T=DSM 44843T), Nocardiopsis chromatogenes sp. nov. [type strain YIM 90109T (=KCTC 19008T=CCTCC AA 2040015T=DSM 44844T) and Nocardiopsis baichengensis sp. nov. [type strain YIM 90130T (=KCTC 19009T=CCTCC AA 2040016T=DSM 44845T). On the basis of the chemotaxonomic data, the description of the recently described species Nocardiopsis salina Li et al. 2004 is emended.</P>
Citricoccus alkalitolerans sp. nov., a novel actinobacterium isolated from a desert soil in Egypt
Li, Wen-Jun,Chen, Hua-Hong,Zhang, Yu-Qin,Kim, Chang-Jin,Park, Dong-Jin,Lee, Jae-Chan,Xu, Li-Hua,Jiang, Cheng-Lin Microbiology Society 2005 International journal of systematic and evolutiona Vol.55 No.1
<P>An actinobacterium, strain YIM 70010<SUP>T</SUP>, which was isolated from a desert soil sample collected in Egypt, was subjected to a polyphasic taxonomy study. The organism was alkalitolerant and its optimum growth occurred at pH 8·0-9·0. The isolate contained chemotaxonomic markers that were characteristic of the genus <I>Citricoccus</I>, i.e. the peptidoglycan type Lys-Gly-Glu (variation A4<I>α</I>), the predominant menaquinone MK-9(H2) and a polar lipid profile consisting of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and two unknown glycolipids. The major fatty acids were anteiso-C15 : 0 and iso-C15 : 0. The G+C content of the genomic DNA was 63·8 mol%. Strain YIM 70010<SUP>T</SUP> exhibited a 16S rRNA gene sequence similarity of 99·6 % and DNA-DNA relatedness value of 56 % with <I>Citricoccus muralis</I> DSM 14442<SUP>T</SUP>. The phenotypic characteristics and DNA-DNA relatedness data indicate that strain YIM 70010<SUP>T</SUP> can be distinguished from <I>C. muralis</I> (DSM 14442<SUP>T</SUP>). Therefore, on the basis of the polyphasic taxonomic data presented, a novel species of the genus <I>Citricoccus</I>, <I>Citricoccus alkalitolerans</I> sp. nov. (type strain, YIM 70010<SUP>T</SUP>=CCTCC AA 203008<SUP>T</SUP>=DSM 15665<SUP>T</SUP>=KCTC 19012<SUP>T</SUP>) is proposed.</P>
Wen Li,Xue-ping Li,Yuan-zhi Shao,Jiang-hui Xie,Wei-xin Chen,Zhi-qiang Jin 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.6
Real-time reverse transcriptase (RT)-PCR using SYBR GreenI was applied to quantify sucrose phosphate synthase (SPS) mRNA expression at different storage days during the natural ripening (with no treatment), inhibited ripening with ethylene absorbent and accelerated ripening by treatment with propylene of banana fruit. The results showed that expression level of SPS mRNA were significantly different between 3 kinds of ripening fruit. Expression of SPS mRNA in fruit treated with propylene was dramatically promoted, the peak of SPS mRNA expression in these fruits appeared 16 days earlier than that in fruit with natural ripening. On the contrary, when fruit applied with ethylene absorbent, SPS mRNA expression was remarkably inhibited, the amount of SPS mRNA expression were significantly lower than that in naturally ripened fruit. These results indicated that the expression level of SPS mRNA of banana fruit can be impacted by regulating ethylene evolution, and that close relationships may exist between SPS mRNA expression and SPS activity, fruit softening, respiration rate, and ethylene production during ripening of banana fruit.