• Title/Summary/Keyword: Nanjing Institute

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An Immunological Approach to ABA Receptor and its Gene

  • Xie Zhou;Jin, Zhen-hua;Zheng, Zhi-fu;Kai Xia;Zhang, Neng-gang;Wan, Yin-sheng;Sang, Yong-ming;Chen, Kao-shan;Liu, Shi-ming
    • Proceedings of the Botanical Society of Korea Conference
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    • 1996.06a
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    • pp.68-78
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    • 1996
  • Two types of immunoloigcal probes, anti-ABBP Abs, have been developed. The purified ABBP from ABA-C1-BSA-sepharose 4B column was identified by PAGE and appeared in one band of about 56KD, as well as showed a specific binding ability and a high affinity for ABA (Kd2.0$\times$10-9 mol/L). Unexpectedly, the existence of rRNA with a length of around 300 nucleotides could be found, when the ABBP was digested with proteinase K and identified by eletrophorsis on an agarose gel (1%). As a result, about 120 cDNA clones coding maize 17s RNA and only one cDNA clone coding ABBP (24cDNA) were obtained from 200,000 seperated phage plaques by the anti-ABBP pAbs. 24cDNA had 1075bp and contained an open reading frame coding 254 amino acids. The anti-idiotypic Ab raised against an ABA MAb showed the ability of either mimicking ABA or competing with ABA. The localization of ABBPs in plant cell was investigated.

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Differential Impacts on Bacterial Composition and Abundance in Rhizosphere Compartments between Al-Tolerant and Al-Sensitive Soybean Genotypes in Acidic Soil

  • Wen, Zhong-Ling;Yang, Min-Kai;Fazal, Aliya;Liao, Yong-Hui;Cheng, Lin-Run;Hua, Xiao-Mei;Hu, Dong-Qing;Shi, Ji-Sen;Yang, Rong-Wu;Lu, Gui-Hua;Qi, Jin-Liang;Hong, Zhi;Qian, Qiu-Ping;Yang, Yong-Hua
    • Journal of Microbiology and Biotechnology
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    • v.30 no.8
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    • pp.1169-1179
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    • 2020
  • In this study, two soybean genotypes, i.e., aluminum-tolerant Baxi 10 (BX10) and aluminumsensitive Bendi 2 (BD2), were used as plant materials and acidic red soil was used as growth medium. The soil layers from the inside to the outside of the root are: rhizospheric soil after washing (WRH), rhizospheric soil after brushing (BRH) and rhizospheric soil at two sides (SRH), respectively. The rhizosphere bacterial communities were analyzed by high-throughput sequencing of V4 hypervariable regions of 16S rRNA gene amplicons via Illumina MiSeq. The results of alpha diversity analysis showed that the BRH and SRH of BX10 were significantly lower in community richness than that of BD2, while the WRH exhibited no significant difference between BX10 and BD2. Among the three sampling compartments of the same soybean genotype, WRH had the lowest community richness and diversity while showing the highest coverage. Beta diversity analysis results displayed no significant difference for any compartment between the two genotypes, or among the three different sampling compartments for any same soybean genotype. However, the relative abundance of major bacterial taxa, specifically nitrogen-fixing and/or aluminum-tolerant bacteria, was significantly different in the compartments of the BRH and/or SRH at phylum and genus levels, indicating genotype-dependent variations in rhizosphere bacterial communities. Strikingly, as compared with BRH and SRH, the WRH within the same genotype (BX10 or BD2) always had an enrichment effect on rhizosphere bacteria associated with nitrogen fixation.

Elevated Serum Ferritin Levels in Patients with Hematologic Malignancies

  • Zhang, Xue-Zhong;Su, Ai-Ling;Hu, Ming-Qiu;Zhang, Xiu-Qun;Xu, Yan-Li
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.15
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    • pp.6099-6101
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    • 2014
  • Purpose: To retrospectively analyze variability and clinical significance of serum ferritin levels in Chinese patients with hematologic malignancies. Materials and Methods: Serum ferritin were measured by radioimmunoassay, using a kit produced by the Beijing Institute of Atomic Energy. Patients with hematologic malignancies, and treated in the Department of Hematology in Nanjing First Hospital and fulfilled study criteria were recruited. Results: Of 473 patients with hematologic malignancies, 262 patients were diagnosed with acute leukemia, 131 with lymphoma and 80 with multiple myeloma. Serum ferritin levels of newly diagnosed and recurrent patients were significantly higher than those entering complete remission stage or in the control group (p<0.001). Conclusions: Serum ferritin lever in patients with hematologic malignancies at early stage and recurrent stage are significantly increased, so that detection and surveillance of changes of serum ferritin could be helpful in assessing conditions and prognosis of this patient cohort.

A Substrate Fed-Batch Biphasic Catalysis Process for the Production of Natural Crosslinking Agent Genipin with Fusarium solani ACCC 36223

  • Zhu, Yuyao;Zhao, Botao;Huang, Xiaode;Chen, Bin;Qian, Hua
    • Journal of Microbiology and Biotechnology
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    • v.25 no.6
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    • pp.814-819
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    • 2015
  • The natural crosslinking agent genipin has been applied widely in biomedicines and foods nowadays. Because of the special hemiacetal ring structure in its molecule, it can only be prepared by hydrolysis of geniposide according to biocatalysis. In this research, strategies including aqueous-organic biphasic catalysis and substrate fed-batch mode were adopted to improve the biocatalysis process of genipin. A 10 L ethyl acetate-aqueous biphasic system with geniposide fed-batch led to a satisfying genipin yield. With Fusarium solani ACCC 36223, 15.7 g/l genipin in the ethyl acetate phase was obtained, corresponding to space-time yields of 0.654 g l-1 h-1.

Design, Synthesis and Evaluation of Pentacyclic Triterpenoids Similar to Glycyrrhetinic Acid Via Combination of Chemical and Microbial Modification as Glycogen Phosphorylases Inhibitor

  • Zhu, Yuyao;Zhang, Jian;Huang, Xiaode;Chen, Bin;Qian, Hua;Zhao, Botao
    • Journal of Microbiology and Biotechnology
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    • v.28 no.11
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    • pp.1876-1882
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    • 2018
  • A series of pentacyclic triterpenoids similar to glycyrrhetinic acid were designed and synthesized via the combination of chemical modification and microbial catalysis. All products were screened for the glycogen phosphorylases inhibitory activities in vitro. Within this series of derivatives, compound 5 displayed good inhibitory activities with $IC_{50}$ value of $27.7{\mu}M$, which is better than that of the other derivatives and glycyrrhetinic acid. Structure-activity relationship (SAR) analysis of these inhibitors was also discussed.

Impact of a Glyphosate-Tolerant Soybean Line on the Rhizobacteria, Revealed by Illumina MiSeq

  • Lu, Gui-Hua;Zhu, Yin-Ling;Kong, Ling-Ru;Cheng, Jing;Tang, Cheng-Yi;Hua, Xiao-Mei;Meng, Fan-Fan;Pang, Yan-Jun;Yang, Rong-Wu;Qi, Jin-Liang;Yang, Yong-Hua
    • Journal of Microbiology and Biotechnology
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    • v.27 no.3
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    • pp.561-572
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    • 2017
  • The global commercial cultivation of transgenic crops, including glyphosate-tolerant soybean, has increased widely in recent decades with potential impact on the environment. The bulk of previous studies showed different results on the effects of the release of transgenic plants on the soil microbial community, especially rhizosphere bacteria. In this study, comparative analyses of the bacterial communities in the rhizosphere soils and surrounding soils were performed between the glyphosate-tolerant soybean line NZL06-698 (or simply N698), containing a glyphosate-insensitive EPSPS gene, and its control cultivar Mengdou12 (or simply MD12), by a 16S ribosomal RNA gene (16S rDNA) amplicon sequencing-based Illumina MiSeq platform. No statistically significant difference was found in the overall alpha diversity of the rhizosphere bacterial communities, although the species richness and evenness of the bacteria increased in the rhizosphere of N698 compared with that of MD12. Some influence on phylogenetic diversity of the rhizosphere bacterial communities was found between N698 and MD12 by beta diversity analysis based on weighted UniFrac distance. Furthermore, the relative abundances of part rhizosphere bacterial phyla and genera, which included some nitrogen-fixing bacteria, were significantly different between N698 and MD12. Our present results indicate some impact of the glyphosate-tolerant soybean line N698 on the phylogenetic diversity of rhizosphere bacterial communities together with a significant difference in the relative abundances of part rhizosphere bacteria at different classification levels as compared with its control cultivar MD12, when a comparative analysis of surrounding soils between N698 and MD12 was used as a systematic contrast study.

Outcomes Based on Risk Assessment of Anastomotic Leakage after Rectal Cancer Surgery

  • Gong, Jian-Ping;Yang, Liu;Huang, Xin-En;Sun, Bei-Cheng;Zhou, Jian-Nong;Yu, Dong-Sheng;Zhou, Xin;Li, Dong-Zheng;Guan, Xin;Wang, Dong-Feng
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.2
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    • pp.707-712
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    • 2014
  • Purpose: Anastomotic leakage (AL) is associated with high morbidity and mortality, high reoperation rates, and increased hospital length of stay. Here we investigated the risk factors for AL after anterior resection for rectal cancer with a double stapling technique. Patients and Methods: Data for 460 patients who underwent primary anterior resection with a double stapling technique for rectal carcinoma at a single institution from 2003 to 2007 were prospectively collected. All patients experienced a total mesorectal excision (TME) operation. Clinical AL was defined as the presence of leakage signs and confirmed by diagnostic work-up according to ICD-9 codes 997.4, 567.22 (abdominopelvic abscess), and 569.81 (fistula of the intestine). Univariate and logistic regression analyses of 20 variables were undertaken to determine risk factors for AL. Survival was analysed using the Cox regression method. Results: AL was noted in 35 (7.6%) of 460 patients with rectal cancer. :Median age of the patients was 65 (50-74) and 161 (35%) were male. The diagnosis of AL was made between the 6th and 12th postoperative day (POD; mean 8th POD). After univariate and multivariate analysis, age (p=0.004), gender (p=0.007), tumor site (p<0.001), preoperative body mass index (EMI) (p<0.001), the reduction of TSGF on 5th POD less than 10U/ml (p=0.044) and the pH value of pelvic dranage less than or equal to 6.978 on 3rd POD (p<0.001) were selected as 6 independent risk factors for AL. It was shown that significant differences in survival of the patients were AL-related (p<0.001), high ASA score related (p=0.036), high-level EMI related (p=0.007) and advanced TNM stage related

A quantitative method for detecting meat contamination based on specific polypeptides

  • Feng, Chaoyan;Xu, Daokun;Liu, Zhen;Hu, Wenyan;Yang, Jun;Li, Chunbao
    • Animal Bioscience
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    • v.34 no.9
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    • pp.1532-1543
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    • 2021
  • Objective: This study was aimed to establish a quantitative detection method for meat contamination based on specific polypeptides. Methods: Thermally stable peptides with good responses were screened by high resolution liquid chromatography tandem mass spectrometry. Standard curves of specific polypeptide were established by triple quadrupole mass spectrometry. Finally, the adulteration of commercial samples was detected according to the standard curve. Results: Fifteen thermally stable peptides with good responses were screened. The selected specific peptides can be detected stably in raw meat and deep processed meat with the detection limit up to 1% and have a good linear relationship with the corresponding muscle composition. Conclusion: This method can be effectively used for quantitative analysis of commercial samples.

Potential Predictors of Sensitivity to Pemetrexed as First-line Chemotherapy for Patients with Advanced Non-Squamous NSCLCs

  • Lu, Yan-Yan;Huang, Xin-En;Xu, Lin;Liu, De-Gan;Cao, Jie;Wu, Xue-Yan;Liu, Jin;Xiang, Jin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.2005-2008
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    • 2013
  • Background: Pemetrexed (PEM) is effective in first-line treatment for patients with non-squamous non-small cell lung cancer (NSCLC). However there are currently no definitive determinants to certify which patients could benefit from PEM. To improve the efficacy of PEM combined with platinum as first-line therapy for advanced non-squamous NSCLC, we conducted this retrospective study to detect potential determinants of this regimen. Methods: We recruited 109 patients with advanced non-squamous NSCLC who received PEM with a platinum as first-line therapy from June 2006 to February 2013 in Jiangsu Cancer Hospital. Multiple variables (age, sex, smoking, degree of cell differentiation, hemoglobin, platinum drugs combined, positions of metastasis) were selected. Logistic regression analysis was used to analyse relationships between these variables and tumor response. Result: In univariate analysis, we found that age and platinum significantly influenced the results of PEM therapy (P<0.05). In multivariable analysis, no factors were independently significant. Conclusion: Our analysis did not suggest that the age, sex, metastasis of liver or other organs, hemoglobin, smoking history and pathological differentiation are associated with the response of PEM. We should conduct further analyses with larger sample size to reconfirm this issue.