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Tong Tang

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https://www.readbyqxmd.com/read/28077654/neutralization-of-diverse-human-cytomegalovirus-strains-conferred-by-antibodies-targets-viral-gh-gl-pul128-131-pentameric-complex
#1
Sha Ha, Fengsheng Li, Matthew C Troutman, Daniel C Freed, Aimin Tang, John W Loughney, Dai Wang, I-Ming Wang, Josef Vlasak, David C Nickle, Richard R Rustandi, Melissa Hamm, Pete A DePhillips, Ningyan Zhang, Jason S McLellan, Hua Zhu, Stuart P Adler, Michael A McVoy, Zhiqiang An, Tong-Ming Fu
: Human cytomegalovirus (HCMV) is the leading cause of congenital viral infection and developing a prophylactic vaccine is of high priority to public health. We recently reported a replication-defective human cytomegalovirus with restored pentameric complex gH/gL/pUL128-131 for prevention of congenital HCMV infection. While the quantity of vaccine-induced antibody responses can be measured in a viral neutralization assay, assessing the quality of such responses, including the ability of vaccine-induced antibodies to cross neutralize the field strains of HCMV, remains a challenge...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28077315/inhibition-of-inos-alleviates-cognitive-deficits-and-depression-in-diabetic-mice-through-downregulating-the-no-sgc-cgmp-pkg-signal-pathway
#2
Xiao Yan Zhou, Fang Zhang, Chang Jiang Ying, Jing Chen, Ling Chen, Jing Dong, Yue Shi, Mang Tang, Xiao Tong Hu, Zhi Hua Pan, Na Na Xu, Kui Yang Zheng, Ren Xian Tang, Yuan Jian Song
Diabetes mellitus often results in a number of complications involving impaired brain function, including cognitive deficits and depression. However, the potential mechanisms for diabetes-related cognitive deficits and depression are not fully understood. Neurons in the hippocampal, cortical and amygdala functional regions are more susceptible to damage during hyperglycemia. Neuroprotection in the brain can rescue cognitive deficits and depression induced by hyperglycemia. This study investigated the potential mechanisms underlying diabetes-related congnitive deficits and depression, determined whether the inflammatory factor inducible nitric oxide synthase (iNOS) and the nitric oxide (NO)/soluble guanylyl cyclases (sGC)/cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG) pathway, play key roles in cognitive deficits and depression associated...
January 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28074221/exploring-the-thermostable-properties-of-halohydrin-dehalogenase-from-agrobacterium-radiobacter-ad1-by-a-combinatorial-directed-evolution-strategy
#3
Zhiyun Wu, Wenfeng Deng, Yapei Tong, Qian Liao, Dongmin Xin, Huashun Yu, Juan Feng, Lixia Tang
As a crucial factor for biocatalysts, protein thermostability often arises from a combination of factors that are often difficult to rationalize. In this work, the thermostable nature of halohydrin dehalogenase from Agrobacterium radiobacter AD1 (HheC) was systematically explored using a combinatorial directed evolution approach. For this, a mutagenesis library of HheC mutants was first constructed using error-prone PCR with low mutagenesis frequency. After screening approximately 2000 colonies, six mutants with eight mutation sites were obtained...
January 10, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28070976/efficient-deep-blue-electroluminescence-based-on-phenanthroimidazole-dibenzothiophene-derivatives-with-different-oxidation-states-of-sulfur-atom
#4
Xiangyang Tang, Tong Shan, Qing Bai, Hongwei Ma, Xin He, Ping Lu
Developing efficient deep blue materials is a long term research focus in the field of organic light emitting diodes (OLEDs). In this paper, we report two deep blue molecules, PITO and PISF, which share similar chemical structures but exhibit different photophysical and device properties. These two molecules consist of phenanthroimidazole and dibenzothiophene analogues. The distinction of their chemical structures lies in the different oxidation states of the S atom. For PITO, the S atom is oxidized and the resulting structure dibenzothiophene S,S-dioxide becomes electron deficient...
January 10, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28064404/heterogeneous-nanomechanical-properties-of-type-i-collagen-in-longitudinal-direction
#5
Ming Tang, Tong Li, Neha S Gandhi, Kevin Burrage, YuanTong Gu
Collagen is an abundant structural biopolymer in mammal vertebrates, providing structural support as well as mechanical integrity for connective tissues such as bone, ligament, and tendon. The mechanical behaviours of these tissues are determined by the nanomechanics of their structures at different hierarchies and the role of collagen structures in the extracellular matrix. Some studies revealed that there is significant microstructural difference in the longitudinal direction of the collagen fibril, which challenges the conventional rod-like assumption prevalently adopted in the existing studies...
January 7, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28060753/clostridium-difficile-colonization-in-preoperative-colorectal-cancer-patients
#6
Yi Zheng, Yun Luo, Yinxiang Lv, Chen Huang, Qinsong Sheng, Peng Zhao, Julian Ye, Weiqin Jiang, Lulu Liu, Xiaojun Song, Zhou Tong, Wenbin Chen, Jianjiang Lin, Yi-Wei Tang, Dazhi Jin, Weijia Fang
The entire process of Clostridium difficile colonization to infection develops in large intestine. However, the real colonization pattern of C. difficile in preoperative colorectal cancer patients has not been studied. In this study, 33 C. difficile strains (16.1%) were isolated from stool samples of 205 preoperative colorectal cancer patients. C. difficile colonization rates in lymph node metastasis patients (22.3%) were significantly higher than lymph node negative patients (10.8%) (OR=2.314, 95%CI=1.023-5...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28060091/midface-distraction-osteogenesis-using-a-modified-external-device-with-elastic-distraction-for-crouzon-syndrome
#7
Haizhou Tong, Lei Liu, Xiaojun Tang, Tao Song, Ningbei Yin, Zhiyong Zhang, Zhenmin Zhao
PURPOSE: Midface distraction osteogenesis has been popularized for the correction of midface hypoplasia associated with exophthalmos and obstructive sleep apnea in patients with Crouzon syndrome. The purpose of this study was to present the method of utilizing the modified external device with elastic distraction for the midface advancement in Crouzon syndrome, and the clinical outcomes and skeletal changes were analyzed. METHODS: Five consecutive patients with Crouzon syndrome underwent Le Fort III osteotomy with midface advancement using a modified external device with elastic distraction...
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28059501/a-high-quantum-yield-mitochondria-targeting-near-infrared-fluorescent-probe-for-imaging-native-hypobromous-acid-in-living-cells-and-in-vivo
#8
Xiaojun Liu, Aishan Zheng, Dongrui Luan, Xiaoting Wang, Fanpeng Kong, Lili Tong, Kehua Xu, Bo Tang
The discovery that hypobromous acid (HOBr) can regulate the activity of collagen IV has attracted great attention. However, HOBr as an important reactive small molecule has hardly ever been studied using a detection method suitable for organisms. Herein, a high-quantum-yield mitochondria-targeting near-infrared (NIR) fluorescent probe for HOBr, RhSN-mito, was designed. RhSN-mito was easily obtained by the Suzuki cross-coupling reaction. The test results show that RhSN-mito can rapidly respond to HOBr with ultrasensitivity and high selectivity...
January 5, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28059206/spatial-division-multiplexed-brillouin-distributed-sensing-based-on-a-heterogeneous-multicore-fiber
#9
Zhiyong Zhao, Yunli Dang, Ming Tang, Borui Li, Lin Gan, Songnian Fu, Huifeng Wei, Weijun Tong, Ping Shum, Deming Liu
We have experimentally investigated spatial-division multiplexed (SDM) Brillouin optical time-domain analysis in a heterogeneous multicore fiber whose central core and six outer cores are made from different preforms, showing a ∼70  MHz Brillouin frequency shift (BFS) difference between them. It reveals that the heterogeneous central core and the outer cores have different temperature sensitivities, but their strain sensitivities are almost the same. By making use of the distinct temperature coefficients of these two kinds of cores, simultaneous and discriminative temperature and strain measurements are achieved...
January 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28038468/variation-of-lifespan-in-multiple-strains-and-effects-of-dietary-restriction-and-bmfoxo-on-lifespan-in-silkworm-bombyx-mori
#10
Jiangbo Song, Dongmei Tang, Zhiquan Li, Xiaoling Tong, Jianfei Zhang, Minjin Han, Hai Hu, Cheng Lu, Fangyin Dai
Established animal models have accelerated our understanding of the mechanisms involved in lifespan determination. However, more experimental animals are required to clarify the complex mechanisms behind the phenomena of aging and lifespan. In this study, we reported the variation of lifespan in nine distinct silkworm strains. Lifespan correlated significantly with BmFoxO gene expression in the representative silkworm strains tested (Xiafang, Dazao-N, and N4). In general, the female silkworm was longer lived than the male of the same strain...
December 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/28017669/depression-can-be-prevented-by-astaxanthin-through-inhibition-of-hippocampal-inflammation-in-diabetic-mice
#11
Xiao-Yan Zhou, Fang Zhang, Xiao-Tong Hu, Jing Chen, Ren-Xian Tang, Kui-Yang Zheng, Yuan-Jian Song
The critical factor considered in a depression induced by diabetes is the inflammation eliciting hippocampal, amygdala and thalamic neuronal injury. Therefore, inhibiting inflammatory reactions in the brain and reducing neuronal injury can alleviate depression in rodents suffering from diabetes mellitus. The oral administration of astaxanthin has been employed in emotional disorders and diabetic complications due to its anti-depressant, anti-inflammatory and anti-apoptotic functions. However, it has not been reported whether astaxanthin can improve diabetes-related depression-like behavior, and its potential mechanisms have not been elucidated...
December 22, 2016: Brain Research
https://www.readbyqxmd.com/read/27997126/efficient-tumor-accumulation-penetration-and-tumor-growth-inhibition-achieved-by-polymer-therapeutics-the-effect-of-polymer-architectures
#12
Tong Shen, Xin Xu, Linyi Guo, Hao Tang, Tongxiang Diao, Zhihua Gan, Guan Zhang, Qingsong Yu
To obtain high tumor-specific accumulation, strong tumor penetration and low off-target uptake, we developed a series of polymer therapeutics with different architectures, including random, block, and brush-like structure, based on the classic N-(2-hydroxypropyl) methacrylamide polymers. The influence of polymer architecture on biological properties such as cellular uptake, blood clearance, and biodistribution have been investigated. Besides small micelles whose sizes were determined by polymer architectures, large aggregates formed by micelle aggregation could also be observed...
December 20, 2016: Biomacromolecules
https://www.readbyqxmd.com/read/27986563/role-and-mechanism-of-pten-in-adiponectin-induced-osteogenesis-in-human-bone-marrow-mesenchymal-stem-cells
#13
Xuhong Liu, Tong Chen, Yuwei Wu, Zhihui Tang
Human bone marrow-derived stromal cells (hBMSC) are multi-potent stem cells that can differentiate into osteogenic and adipogenic lineages. Adiponectin (APN) is an adipocyte-derived hormone that modulates a series of metabolic processes. Recent studies revealed a relationship between APN and bone regeneration, though the underlying mechanism was not fully examined. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) is a tumor suppressor and a therapeutic target for the metabolic syndrome. Its deletion mutants increase osteoblast activity and bone mineral density...
December 13, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27960480/ultrafast-polarized-single-photon-emission-from-m-plane-ingan-quantum-dots-on-gan-nanowires
#14
Tim J Puchtler, Tong Wang, Christopher X Ren, Fengzai Tang, Rachel A Oliver, Robert A Taylor, Tongtong Zhu
We demonstrate single-photon emission from self-assembled m-plane InGaN quantum dots (QDs) embedded on the side-walls of GaN nanowires. A combination of electron microscopy, cathodoluminescence, time-resolved microphotoluminescence (μPL), and photon autocorrelation experiments give a thorough evaluation of the QD structural and optical properties. The QD exhibits antibunched emission up to 100 K, with a measured autocorrelation function of g((2))(0) = 0.28(0.03) at 5 K. Studies on a statistically significant number of QDs show that these m-plane QDs exhibit very fast radiative lifetimes (260 ± 55 ps) suggesting smaller internal fields than any of the previously reported c-plane and a-plane QDs...
December 14, 2016: Nano Letters
https://www.readbyqxmd.com/read/27943407/a-novel-and-generalized-lithium-ion-battery-configuration-utilizing-al-foil-as-both-anode-and-current-collector-for-enhanced-energy-density
#15
Bifa Ji, Fan Zhang, Maohua Sheng, Xuefeng Tong, Yongbing Tang
A novel battery configuration based on an aluminum foil anode and a conventional cathode is developed. The aluminum foil plays a dual role as both the active anode material and the current collector, which enhances the energy density of the packaged battery, and reduces the production cost. This generalized battery configuration has high potential for application in next-generation lithium-ion batteries.
December 12, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27929195/deciphering-the-binding-behaviours-of-bsa-using-ionic-aie-active-fluorescent-probes
#16
Jiaqi Tong, Ting Hu, Anjun Qin, Jing Zhi Sun, Ben Zhong Tang
The binding behaviours of a transport protein, bovine serum albumin (BSA), in its native, unfolding and refolding states have been probed by monitoring the emission changes of two exogenous AIE-active fluorescent probes, M2 and M3, which are designed to be anionic and cationic, respectively. Due to their AIE properties, both M2 and M3 display emission enhancement when bound to the hydrophobic cavity of BSA. The binding site of M2 and M3 is found to be subdomain IIA. Then, the BSA + M2 and BSA + M3 systems are utilized to fluorescently signal the conformation changes of BSA caused by various external stimuli, including thermally or chemically induced denaturation...
December 8, 2016: Faraday Discussions
https://www.readbyqxmd.com/read/27928493/putting-an-ultrahigh-concentration-of-amine-groups-into-a-metal-organic-framework-for-co2-capture-at-low-pressures
#17
Pei-Qin Liao, Xun-Wei Chen, Si-Yang Liu, Xu-Yu Li, Yan-Tong Xu, Minni Tang, Zebao Rui, Hongbing Ji, Jie-Peng Zhang, Xiao-Ming Chen
Tremendous efforts have been devoted to increasing the CO2 capture performance of porous materials, especially for low CO2 concentration environments. Here, we report that hydrazine can be used as a diamine short enough to functionalize the small-pore metal-organic framework [Mg2(dobdc)] (H4dobdc = 2,5-dihydroxyl-1,4-benzenedicarboxylic acid). By virtue of the ultrahigh concentration of free amine groups (6.01 mmol g(-1) or 7.08 mmol cm(-3)) capable of reversible carbamic acid formation, the new material [Mg2(dobdc)(N2H4)1...
October 19, 2016: Chemical Science
https://www.readbyqxmd.com/read/27921235/transplantation-of-collagen-scaffold-with-autologous-bone-marrow-mononuclear-cells-promotes-functional-endometrium-reconstruction-via-downregulating-%C3%AE-np63-expression-in-asherman-s-syndrome
#18
Guangfeng Zhao, Yun Cao, Xianghong Zhu, Xiaoqiu Tang, Lijun Ding, Haixiang Sun, Juan Li, Xinan Li, Chenyan Dai, Tong Ru, Hui Zhu, Jingjie Lu, Caimei Lin, Jingmei Wang, Guijun Yan, Huiyan Wang, Lei Wang, Yimin Dai, Bin Wang, Ruotian Li, Jianwu Dai, Yan Zhou, Yali Hu
Asherman's syndrome (AS) is a common disease that presents endometrial regeneration disorder. However, little is known about its molecular features of this aregenerative endometrium in AS and how to reconstruct the functioning endometrium for the patients with AS. Here, we report that ΔNp63 is significantly upregulated in residual epithelial cells of the impaired endometrium in AS; the upregulated-ΔNp63 induces endometrial quiescence and alteration of stemness. Importantly, we demonstrate that engrafting high density of autologous bone marrow mononuclear cells (BMNCs) loaded in collagen scaffold onto the uterine lining of patients with AS downregulates ΔNp63 expression, reverses ΔNp63-induced pathological changes, normalizes the stemness alterations and restores endometrial regeneration...
December 1, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27901544/quantitative-urinalysis-using-aggregation-induced-emission-bioprobes-for-monitoring-chronic-kidney-disease
#19
Tong Chen, Ni Xie, Lucia Viglianti, Yabin Zhou, Hui Tan, Ben Zhong Tang, Youhong Tang
Early detection and appropriate management of chronic kidney disease can reduce the progression of kidney failure and cardiovascular disease. The urine albumin to creatinine ratio (UACR) test is a standard urine test for identifying individuals at high risk of developing progressive kidney disease. In this study, IDATPE, a novel fluorescent probe with aggregation-induced emission (AIE) features, is successfully developed for creatinine detection and quantitation. An excellent correlation between fluorescent light intensity and creatinine concentration is achieved...
November 30, 2016: Faraday Discussions
https://www.readbyqxmd.com/read/27901088/tunable-microwave-metasurfaces-for-high-performance-operations-dispersion-compensation-and-dynamical-switch
#20
He-Xiu Xu, Shiwei Tang, Shaojie Ma, Weijie Luo, Tong Cai, Shulin Sun, Qiong He, Lei Zhou
Controlling the phase distributions on metasurfaces leads to fascinating effects such as anomalous light refraction/reflection, flat-lens focusing, and optics-vortex generation. However, metasurfaces realized so far largely reply on passive resonant meta-atoms, whose intrinsic dispersions limit such passive meta-devices' performances at frequencies other than the target one. Here, based on tunable meta-atoms with varactor diodes involved, we establish a scheme to resolve these issues for microwave metasurfaces, in which the dispersive response of each meta-atom is precisely controlled by an external voltage imparted on the diode...
November 30, 2016: Scientific Reports
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