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https://www.readbyqxmd.com/read/28636190/uchl1-promotes-invasion-of-breast-cancer-cells-through-activating-akt-signaling-pathway
#1
Yanhong Luo, Jianfeng He, Chunlin Yang, Matthew Orange, Xingcong Ren, Nick Blair, Tao Tan, Jin-Ming Yang, Hua Zhu
As a de-ubiquitin enzyme, ubiquitin C-terminal hydrolase (UCH)-L1 has been shown to be overexpressed in several human cancers. However, the function of UCH-L1 in invasion of breast cancers is still unclear. Here we report that the expression of UCH-L1 is significantly higher in cancer cells with higher invasive ability. While ectopic UCH-L1 expression failed to alter cell proliferation in MCF-7 cells, it caused a significant upregulation of cellular invasion. Furthermore, siRNA mediated knockdown of UCH-L1 led to suppression of invasion in UCH-L1 overexpressing MCF-7 cells...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28635311/type-d-personality-but-not-type-a-behavior-pattern-is-associated-with-coronary-plaque-vulnerability
#2
Ping Lin, Ling Li, Yini Wang, Zhenjuan Zhao, Guojie Liu, Wei Chen, Hui Tao, Xueqin Gao
Personality traits are associated with major adverse coronary events (MACE) in patients with coronary artery disease (CAD). However, the link between personality traits and intravascular morphology in CAD patients is poorly understood. This study investigated the relationship between personality traits, specifically Type A behavior pattern and Type D personality, and plaque vulnerability. After adjustment for demographic and clinical factors, multivariable regression analysis showed no association between Type A and optical coherence tomography indices...
June 21, 2017: Psychology, Health & Medicine
https://www.readbyqxmd.com/read/28634606/a-new-aie-multi-block-polyurethane-copolymer-material-for-subcellular-microfilament-imaging-in-living-cells
#3
Yu-Qing Niu, Tao He, Jun Song, Si-Ping Chen, Xiang-Yu Liu, Zhi-Gang Chen, Ying-Jie Yu, Shi-Guo Chen
A multi-block fluorescent amphiphilic polyurethane copolymer (TPE-PU), self-assembling into hairy, water-soluble micelles, is used as a subcellular microfilament probe in living cells.
June 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28634473/toxic-effects-of-prodigiosin-secreted-by-hahella-sp-ka22-on-harmful-alga-phaeocystis-globosa
#4
Huajun Zhang, Hui Wang, Wei Zheng, Zhiyuan Yao, Yun Peng, Su Zhang, Zhong Hu, Zhen Tao, Tianling Zheng
Application of algicidal compounds secreted by bacteria is a promising and environmentally friendly strategy to control harmful algal blooms (HABs). Years ago prodigiosin was described as an efficient algicidal compound, but the details about the effect of prodigiosin on algal cells are still elusive. Prodigiosin shows high algicidal activity on Phaeocystis globosa, making it a potential algicide in HAB control. When P. globosa were treated with prodigiosin at 5 μg/mL, algae cells showed cytoplasmic hypervacuolization, chloroplast and nucleus rupture, flagella missing, and cell fracture, when observed by scanning electron microscope and transmission electron microscopy...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28634409/characterization-of-the-3d-structure-of-a-cultivated-land-surface-and-its-influence-on-wheat-seedlings-growth-using-kinect
#5
Tao Liu, Wen Chen, Fujian Li, Wei Wu, Chengming Sun, Jinfeng Ding, Xinkai Zhu, Wenshan Guo
The quality of wheat emergence has a significant impact on the subsequent growth and development of seedlings. The structure of cultivated land surfaces is an important factor influencing wheat seedlings growth. However, few studies have investigated this. In this study, three-dimensional structural parameters of cultivated land surfaces were collected using 3D imaging equipment, and the effects of different grades of lands on the emergence and growth of wheat were evaluated. The evaluation criteria for the soil blocks was designed according to the ISO-25178-2 standard, and the wheat emergence rate, speed, tillering capacity per plant, dry weight per plant, and final yields of different grades of cultivated land were investigated...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634402/enhanced-antiviral-and-antifibrotic-effects-of-short-hairpin-rnas-targeting-hbv-and-tgf-%C3%AE-in-hbv-persistent-mice
#6
Lei Ye, Fangming Kan, Tao Yan, Jiaqi Cao, Leiliang Zhang, Zhijian Wu, Wuping Li
The hepatitis B virus (HBV) causes acute and chronic liver infection, which may lead to liver cirrhosis and hepatocellular carcinoma. Current treatments including interferons and nucleotide analogs, have limited therapeutic effects, underscoring the need to identify effective therapeutic options to inhibit HBV replication and prevent complications. Previous animal models mimicking chronic HBV infection do not faithfully reflect disease progression in humans. Here, we used our established HBV-persistent mouse line with liver fibrosis to evaluate the efficacy of novel therapies...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634367/proteomic-analysis-reveals-large-amounts-of-decomposition-enzymes-and-major-metabolic-pathways-involved-in-algicidal-process-of-trametes-versicolor-f21a
#7
Xueyan Gao, Congyan Wang, Wei Dai, Shenrong Ren, Fang Tao, Xingbing He, Guomin Han, Wei Wang
A recent algicidal mode indicates that fungal mycelia can wrap and eliminate almost all co-cultivated algal cells within a short time span. However, the underlying molecular mechanism is rarely understood. We applied proteomic analysis to investigate the algicidal process of Trametes versicolor F21a and identified 3,754 fungal proteins. Of these, 30 fungal enzymes with endo- or exoglycosidase activities such as β-1,3-glucanase, α-galactosidase, α-glucosidase, alginate lyase and chondroitin lyase were significantly up-regulated...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634365/different-levels-of-blood-pressure-different-benefit-from-dual-antiplatelet-therapy-in-minor-stroke-or-tia-patients
#8
Jie Xu, Yongli Tao, Hao Li, Hongqiu Gu, Xuewei Xie, Xia Meng, Yuming Xu, Yilong Wang, Yongjun Wang
The study aimed to evaluate whether the benefits of dual antiplatelet therapy would be influenced by blood pressure (BP) levels, among acute minor stroke or transient ischemic attack (TIA). In CHANCE (Clopidogrel in High-Risk Patients with Acute Nondisabling cerebrovascular Events) trail, Patients were stratified by systolic BP (SBP) and diastolic BP (DBP) level measured on admission, respectively, using the supine position BP within 24 hours after symptoms onset. The primary efficacy outcome was stroke recurrence, bleeding was the safety outcome...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634288/qsva-framework-for-rna-quality-correction-in-differential-expression-analysis
#9
Andrew E Jaffe, Ran Tao, Alexis L Norris, Marc Kealhofer, Abhinav Nellore, Joo Heon Shin, Dewey Kim, Yankai Jia, Thomas M Hyde, Joel E Kleinman, Richard E Straub, Jeffrey T Leek, Daniel R Weinberger
RNA sequencing (RNA-seq) is a powerful approach for measuring gene expression levels in cells and tissues, but it relies on high-quality RNA. We demonstrate here that statistical adjustment using existing quality measures largely fails to remove the effects of RNA degradation when RNA quality associates with the outcome of interest. Using RNA-seq data from molecular degradation experiments of human primary tissues, we introduce a method-quality surrogate variable analysis (qSVA)-as a framework for estimating and removing the confounding effect of RNA quality in differential expression analysis...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28634148/iodine-and-freeze-drying-enhanced-high-resolution-microct-imaging-for-reconstructing-3d-intraneural-topography-of-human-peripheral-nerve-fascicles
#10
Liwei Yan, Yongze Guo, Jian Qi, Qingtang Zhu, Liqiang Gu, Canbin Zheng, Tao Lin, Yutong Yu, Zitao Zeng, Sha Yu, Shuang Zhu, Xiang Zhou, Xi Zhang, Yunfei Du, Zhi Yao, Yao Lu, Xiaolin Liu
BACKGROUND: The precise annotation and accurate identification of the topography of fascicles to the end organs are prerequisites for studying human peripheral nerves. NEW METHOD: In this study, we present a feasible imaging method that acquires 3D high-resolution (HR) topography of peripheral nerve fascicles using an iodine and freeze-drying (IFD) micro-computed tomography (microCT) method to greatly increase the contrast of fascicle images. RESULTS: The enhanced microCT imaging method can facilitate the reconstruction of high-contrast HR fascicle images, fascicle segmentation and extraction, feature analysis, and the tracing of fascicle topography to end organs, which define fascicle functions...
June 17, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28634134/a-terminal-rectal-mass-ultimately-identified-by-histopathology-examination
#11
Tao Shi, Li-Tian Wang, Gang Liu
No abstract text is available yet for this article.
June 17, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28634122/mapping-the-binding-interface-in-a-non-covalent-size-variant-of-a-monoclonal-antibody-using-native-mass-spectrometry-hydrogen-deuterium-exchange-mass-spectrometry-and-computational-analysis
#12
Yuetian Yan, Hui Wei, Sutjano Jusuf, Stanley R Krystek, Jie Chen, Guodong Chen, Richard T Ludwig, Li Tao, Tapan K Das
Variants of monoclonal antibody containing an extra light chain has been reported in protein products(1-3). Due to potential impact on potency and immunogenicity, it is important to understand the formation mechanism of such variants so that appropriate control strategies can be implemented to assure product quality. In a model monoclonal antibody, we observed a size variant with an extra light chain non-covalently associated with the monomer (later named as "1.2mer"). The interaction between monomer and the extra light chain was characterized by native spray and hydrogen/deuterium exchange mass spectrometry (HDX MS) techniques...
June 17, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28634059/a-pumpkin-polysaccharide-induces-apoptosis-by-inhibiting-the-jak2-stat3-pathway-in-human-hepatoma-hepg2-cells
#13
Weixi Shen, Chunhong Chen, Yuanyuan Guan, Xiaowei Song, Yinghua Jin, Jingfang Wang, Yu Hu, Tao Xin, Qiuying Jiang, Li Zhong
The purpose of this study is to investigate the effect of a purified polysaccharide (PPPF) from pumpkin fruit on the Janus activated kinase (JAK)/signal transducer and activator of transcription (STAT) signaling during apoptotic process. The results showed that PPPF or STAT3 siRNA inhibits the cell growth of HepG2 cells via induction of apoptosis. Moreover, PPPF is able to suppress both constitutive and IL-6-induced phosphorylation of STAT3 (on Tyr705) and subsequent nuclear translocation in cancer cells. Such inhibition is found to be achieved through down-regulation of constitutive phosphorylation of JAK2, but not JAk1, c-Src, ERK1/2, and Akt, which means STAT3 tyrosine phosphorylation in HepG2 cells following PPPF treatment is associated with a reduction in JAK2 activity...
June 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28633950/a-multi-scale-integrated-modeling-framework-to-measure-comprehensive-impact-of-coastal-reclamation-activities-in-yellow-river-estuary-china
#14
Yan Xu, Yanpeng Cai, Tao Sun, Qian Tan
In this paper, an improved multi-scale integrated modeling framework has been established to evaluate coastal reclamation intensity (CRI). About 7 indicators are considered, including ecological degradation intensity (EDI), hydrodynamic disturbance (IHD), engineering types, water quality, economic investment, population growth, and reclaimed land area. Meanwhile, an integrated framework enhanced methods in terms of (a) measuring intensity of ecological degradation process under multi-scale impact, (b) developing the indicator system of CRI, and discussing the driving forces and trends of coastal reclamation, (c) determining fuzzy preference relations of weight and calculating the specific value of CRI with the case study areas of Yellow River estuary from 2000 to 2015...
June 17, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28633640/biological-mechanisms-discriminating-growth-rate-and-adult-body-weight-phenotypes-in-two-chinese-indigenous-chicken-breeds
#15
Tengfei Dou, Sumei Zhao, Hua Rong, Dahai Gu, Qihua Li, Ying Huang, Zhiqiang Xu, Xiaohui Chu, Linli Tao, Lixian Liu, Changrong Ge, Marinus F W Te Pas, Junjing Jia
BACKGROUND: Intensive selection has resulted in increased growth rates and muscularity in broiler chickens, in addition to adverse effects, including delayed organ development, sudden death syndrome, and altered metabolic rates. The biological mechanisms underlying selection responses remain largely unknown. Non-artificially-selected indigenous Chinese chicken breeds display a wide variety of phenotypes, including differential growth rate, body weight, and muscularity. The Wuding chicken breed is a fast growing large chicken breed, and the Daweishan mini chicken breed is a slow growing small chicken breed...
June 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28633518/the-optimization-of-siderophore-production-by-bacillus-sp-pz-1-and-its-potential-enhancement-on-phytoextration-of-pb-from-soil
#16
Sumei Yu, Chunying Teng, Xin Bai, Jinsong Liang, Tao Song, Liying Dong, Yu Jin, Juanjuan Qu
In this study, the siderophore-producing characteristics and conditions of Bacillus sp. PZ-1 were investigated and the enhancement of siderophores on Pb uptake and translocation in Brassica juncea were determined. Results of single factor experiment showed that glucose, pH and Pb(NO3)2 could stimulate PZ-1 growth and siderophore production. The maximum siderophore production of 90.52% siderophore units was obtained by response surface methodology optimization at glucose concentration of 21.84 g/l, pH 6.18 and Pb(NO3)2 concentration of 245...
June 21, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28633116/spatial-and-temporal-variation-in-autochthonous-and-allochthonous-contributors-to-increased-organic-carbon-and-nitrogen-burial-in-a-plateau-lake
#17
Changchun Huang, Ling Yao, Yunlin Zhang, Tao Huang, Mingli Zhang, A-Xing Zhu, Hao Yang
Increased organic carbon and nitrogen accumulation rates (OCAR and ONAR) in lake sediment significantly regulate the global carbon cycle. However, the reasons for and contributors to the increased OCAR and ONAR are unclear. Seven sediment cores, collected in July 2014 from Dianchi Lake, China, were used to evaluate the effects of autochthonous and allochthonous sources on OCAR and ONAR. The results indicate that OCAR and ONAR increased by factors of 4.33 and 7.34 over the past hundred years (1900-2000), particularly after algal blooms began to occur frequently (beginning in the 1980s)...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28633005/autophagy-impairment-mediated-by-s-nitrosation-of-atg4b-leads-to-neurotoxicity-in-response-to-hyperglycemia
#18
Yazi Li, Yuying Zhang, Lei Wang, Ping Wang, Yanhong Xue, Xiaopeng Li, Xinhua Qiao, Xu Zhang, Tao Xu, Guanghui Liu, Peng Li, Chang Chen
The majority of diabetic patients develop neuropathy and there is an increasing prevalence of neurodegeneration in the central nervous system (CNS). However, the mechanism behind is poorly understood. Here we first observed that macroautophagy/autophagy was suppressed in the hippocampus of diabetic GK rats with hyperglycemia, whereas it was unchanged in ob/ob mice without hyperglycemia. Autophagy could be directly inhibited by high glucose in mouse primary hippocampal neurons. Moreover, autophagy was protective in high-glucose-induced neurotoxicity...
June 20, 2017: Autophagy
https://www.readbyqxmd.com/read/28632985/healable-reconfigurable-reprocessable-thermoset-shape-memory-polymer-with-highly-tunable-topological-rearrangement-kinetics
#19
Zizheng Fang, Ning Zheng, Qian Zhao, Tao Xie
The unique capability of topological rearrangement for dynamic covalent polymer networks has enabled various unusual properties (self-healing, solid-state plasticity, and reprocessability) that are not found in conventional thermosets. Achieving these properties in one network in a synergetic fashion can open up new opportunities for shape memory polymer. To accomplish such a goal, the freedom to tune topological rearrangement kinetics is critical. This is, however, challenging to achieve. In this work, two sets of dynamic bonds (urethane and hindered urea) are incorporated into a hybrid network for synthesizing shape memory poly(urea-urethane)...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28632762/dot1l-inhibitor-improves-early-development-of-porcine-somatic-cell-nuclear-transfer-embryos
#20
Jia Tao, Yu Zhang, Xiaoyuan Zuo, Renyun Hong, Hui Li, Xing Liu, Weiping Huang, Zubing Cao, Yunhai Zhang
Incomplete epigenetic reprogramming of the genome of donor cells causes poor early and full-term developmental efficiency of somatic cell nuclear transfer (SCNT) embryos. Previous research indicate that inhibition of the histone H3 K79 methyltransferase DOT1L, using a selective pharmacological inhibitor EPZ004777 (EPZ), significantly improved reprogramming efficiency during the generation of mouse induced pluripotent stem cells. However, the roles of DOT1L in porcine nuclear transfer-mediated cellular reprogramming are not yet known...
2017: PloS One
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