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采用异位生态组合修复系统研究九龙江支流浦林溪污染水体不同形态磷净化效果及其对磷形态百分比的影响，并分析了异位生态组合修复系统各处理单元水体磷形态与环境因子的相关性。结果表明，异位生态组合修复系统对总磷（TP）、溶解态总磷（DTP）、可溶性正磷酸盐（DP）和颗粒态磷（PP）的平均总去除率分别为84.3%、84.4%、90.8%和78.9%，其中对DP净化效果最好。在异位生态组合修复系统各处理单元中，当原水水体中磷浓度较低时，泥膜共生高效混凝净水系统对TP、DTP和DP的净化效果良好，平均去除率分别可达81.4%、76.0%、84.8%，对PP的平均去除率可达66.7%；当原水水体中磷浓度较高时，泥膜共生高效混凝净水系统对TP、DTP和DP的平均去除率分别为37.8%、44.6%和45.8%，对PP的净化效果显著，平均去除率可达93.2%。当泥膜共生高效混凝净水系统出水水体磷浓度较低时，对TP和DTP的净化效果均表现为生态塘Ⅱ>生态塘Ⅰ，而对DP对TP、DTP的净化效果表现为生态塘Ⅰ>生态塘Ⅱ。对PP的净化效果均表现为生态塘Ⅱ>生态塘Ⅰ。生态塘Ⅲ对TP、DTP的净化效果存在波动，对DP的净化效果较为显著，平均去除率可达94.1%，对PP的净化效果一般。除泥膜共生高效混凝净水系统出水外，浦林溪污染水体和经异位生态组合修复系统处理的水体磷形态均以PP为主，不同形态磷占总磷百分比依次为PP>DTP>DP。Pearson相关性分析显示，异位生态组合修复系统不同处理单元水体各形态磷与pH、水温和溶解氧之间表现出不同的相关性。

【目的】探讨不同程度近视患者黄斑中心凹下脉络膜厚度与等效球镜度、眼轴长度、眼压和血压的关系。【方法】采用横断面研究收集90例近视患者，其中低、中、高度近视各30例，使用相干光断层扫描仪的深度增强成像模式获得黄斑中心凹下脉络膜厚度、客观验光加主觉验光获得等效球镜度、非接触式眼光学生物测量仪测量眼轴长度、非接触式眼压计测量眼压、汞柱式血压计测量收缩压和舒张压，取所有受试者的右眼数据进行单因素方差分析、线性相关和回归分析。【结果】低、中、高度近视患者黄斑中心凹下脉络膜厚度（μm）分别为（295 ± 75）、（223 ± 66）、（176 ± 50），三组患者间等效球镜度、眼轴长度、黄斑中心凹下脉络膜厚度的差异均具有统计学意义（P < 0.05），眼压、收缩压和舒张压的差异均无统计学意义（P > 0.05）。高度近视组脉络膜厚度值与等效球镜度、眼轴、眼压、收缩压、舒张压均呈负相关（r = -0.721，-0.481，-0.415，-0.571，-0.598，P 皆< 0.05）；中度近视组脉络膜厚度值与等效球镜度、眼轴、眼压呈负相关（r = -0.686，-0.551，-0.460，P 皆< 0.05），与收缩压及舒张压均不相关（P > 0.05）；低度近视组脉络膜厚度值与等效球镜度、眼轴、眼压、收缩压及舒张压均呈不相关（P > 0.05）。高度近视组中等效球镜度每增加-1 D脉络膜厚度减少24 μm，眼轴每增加1 mm脉络膜厚度减少37 μm。中度近视组中等效球镜度每增加-1 D脉络膜厚度减少16 μm，眼轴每增加1 mm脉络膜厚度减少21 μm。【结论】中度及高度近视患者的黄斑中心凹下脉络膜厚度随等效球镜度、眼轴、眼压的增加而变薄；血压是影响高度近视患者的黄斑中心凹下脉络膜厚度的重要影响因素之一。

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Excessive fat deposition in the belly of poultry will increase the pressure of lipid metabolism in highproducing organism, which is not conducive to the efficient production of poultry meat products. Arginine plays an important role in lipid metabolism and fat deposition as an essential basic amino acid for poultry growth and development. The paper summarized the mechanism of arginine in lipid metabolism and abdominal fat deposition and its application effect in poultry, to provide a reference for the mechanism study of arginine in improve lipid metabolism in poultry. [ABSTRACT FROM AUTHOR]

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Objective: Angiogenesis is a key pathologic process for the development and metastasis of solid tumors. Blocking this event can effectively prevent tumor development and malignant transformation. A secreted protein YKL-40 is an angiogenic factor. In this study, we created a new humanized anti-YKL-40 monoclonal antibody, named Rosazumab, and investigated its effects on angiogenesis induced by YKL-40 in vitro. Methods: Western blot was engaged to define the specific binding of Rosazumab to YKL-40. The specificity and purity of Rosazumab were also analyze by Western blot and Coomassie blue staining. Live/Dead staining was used to determine cytotoxicity of this antibody. Rosazumab was introduced to human microvascular endothelial cells HMVECs in Transwell to detect the effect on the cell migration, and in Matrigel to detect the effect on microtubule formation in the presence of recombinant protein YKL-40 or conditioned medium from brain tumor cell line GSDC. Results: Western blot showed that Rosazumab specifically recognized YKL-40, Coomassie brilliant blue staining further confirmed its purity and specificity. Live/dead study did not exhibit the cytotoxicity of different doses of Rosazumab to the cells. Transwell assay showed that the antibody effectively blocked HMVEC migration and tube formation by neutralizing recombinant protein YKL-40 and the YKL-40 in the conditioned medium of GSDC. Conclusions: Rosazumab, the first humanized YKL-40 monoclonal antibody has high specificity to bind to YKL-40 and low cytotoxicity. The antibody can effectively inhibit angiogenesis induced by YKL-40 in vitro, which lays the foundation for the following studies in vitro. Therefore, our study may provide a new therapeutic tool targeting YKL-40-induced tumor angiogenesis and subsequent metastasis of malignant tumors in the future. [ABSTRACT FROM AUTHOR]

[Objectives] We evaluated the effects of soil waterlogging on growth, root morphology and grain yield of wheat. [Methods] Wheat cultivars Ningmai 13 and Wanmai 52' were used. At anthesis, potted plants were shifted in a water-filled container for different duration (0,3,6 and 9 d. as W0. W3, W6 and W9, respectively). [Results] Short-term waterlogging (W3) had no significant effect on the growth and yield of wheat cultivars. However, long-term waterlogging W6 and W9 significantly reduced total root length, average root diameter, root dry matter weight, total volume and total surface area of both wheats. Increasing waterlogging durations significantly increased malonaldehyde(MDA) content and peroxidase (POD) activity in the root tissues of wheat cultivars measured at 7,14 and 21 days after anthesis. W6 and W9 treated plants had a significantly lower root superoxidase dismutase (SOD) than that of WO at 21 days after anthesis. W6 and W9 significantly reduced total plant dry biomass, harvest index, thousand kernel weight and total gain yield total surface area measured at 21 days after anthesis. [Conclusions]Short-term waterlogging had no significant effect on root morphology, I of the two wheat cultivars at maturity. In addition, kernels per spike were significantly reduced by waterlogging (W6 and W9) in cultivar Wanmai 52' only. Wheat grain yield at maturity had significant positive correlation with total dry matter weight, total root volume and dry matter allocation above the ground and the yield in both of wheat cultivars. While, long-term waterlogging significantly affected root morphology in both cultivars used in this study, with no significant growth recovery up to 21 days after anthesis. Then long-term water logging reduced the dry weight of grain and the proportion of grain dry weight above ground that ultimately led to yield penalties. [ABSTRACT FROM AUTHOR]

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Objective This study aimed to investigate the differential gene expression of rabbit bone marrow stromal cells (MSCs) through the regulation of endothelial progenitor cells derived from peripheral blood (EPCs) exosomes. Methods EPC-exos co-cultured with MSCs were used as the experimental group, and MSCs cultured separately were used as the control group. The gene chip was sent for detection to screen out the molecular network module and key genes after 14 days. Results 1772 differentially expressed genes were screened from high-throughput microarray data, of which 664 were up-regulated and 1108 were down-regulated. The differentially expressed genes were mainly related to the localization of organelles, the proliferation and cell cycle of organelles such as chromosomes and centromeres. In the pathways regulated by EPC-exos, the P53 pathway, the MARK pathway and the ketone synthesis and degradation pathway showed significant differences. Conclusion The relevant genes screened by gene chip method may play an important role in promoting the biological function of EPC-exos in regulating MSCs, and provide the theoretical basis for tissue and organ repair by exosomes. [ABSTRACT FROM AUTHOR]

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