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Zhang Feng

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https://www.readbyqxmd.com/read/29334574/improved-long-term-volume-retention-of-svf-gel-grafting-with-enhanced-angiogenesis-and-adipogenesis
#1
Yuteng Zhang, Junrong Cai, Tao Zhou, Yao Yao, Ziqing Dong, Feng Lu
BACKGROUND: The apoptosis of mature adipocytes after fat grafting can result in chronic inflammation, absorption, and fibrosis, leading to unpredictable outcomes. Selective elimination of mature adipocytes may result in better outcomes and a different underlying retention mode. We previously developed a mature-adipocyte-free product, SVF-gel, derived from lipoaspirate, which eliminates adipocytes while preserving the stromal vascular fraction. This study investigated the retention and regeneration mode of SVF-gel grafting...
January 10, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29334160/fine-tuning-of-molecular-packing-and-energy-level-through-methyl-substitution-enabling-excellent-small-molecule-acceptors-for-nonfullerene-polymer-solar-cells-with-efficiency-up-to-12-54
#2
Zhenghui Luo, Haijun Bin, Tao Liu, Zhi-Guo Zhang, Yankang Yang, Cheng Zhong, Beibei Qiu, Guanghao Li, Wei Gao, Dongjun Xie, Kailong Wu, Yanming Sun, Feng Liu, Yongfang Li, Chuluo Yang
A novel small molecule acceptor MeIC with a methylated end-capping group is developed. Compared to unmethylated counterparts (ITCPTC), MeIC exhibits a higher lowest unoccupied molecular orbital (LUMO) level value, tighter molecular packing, better crystallites quality, and stronger absorption in the range of 520-740 nm. The MeIC-based polymer solar cells (PSCs) with J71 as donor, achieve high power conversion efficiency (PCE), up to 12.54% with a short-circuit current (JSC ) of 18.41 mA cm-2 , significantly higher than that of the device based on J71:ITCPTC (11...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29334128/improved-liver-r2-mapping-by-pixel-wise-curve-fitting-with-adaptive-neighborhood-regularization
#3
Changqing Wang, Xinyuan Zhang, Xiaoyun Liu, Taigang He, Wufan Chen, Qianjin Feng, Yanqiu Feng
PURPOSE: To improve liver R2* mapping by incorporating adaptive neighborhood regularization into pixel-wise curve fitting. METHODS: Magnetic resonance imaging R2* mapping remains challenging because of the serial images with low signal-to-noise ratio. In this study, we proposed to exploit the neighboring pixels as regularization terms and adaptively determine the regularization parameters according to the interpixel signal similarity. The proposed algorithm, called the pixel-wise curve fitting with adaptive neighborhood regularization (PCANR), was compared with the conventional nonlinear least squares (NLS) and nonlocal means filter-based NLS algorithms on simulated, phantom, and in vivo data...
January 15, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29334102/ru-nanoparticles-dispersed-on-magnetic-yolk-shell-nanoarchitectures-with-fe3o4-core-and-sulfoacid-containing-periodic-mesoporous-organosilica-shell-as-bifunctional-catalysts-for-direct-conversion-of-cellulose-to-isosorbide
#4
Ying Yang, Wen Zhang, Feng Yang, Biao Zhou, Dehong Zeng, Na Zhang, Guoming Zhao, Shijie Hao, Xin Zhang
A green and sustainable approach for biorefining involves the development of bifunctional catalysts for the one-pot conversion of cellulosic biomass to isosorbide. This requires highly efficient, easily separated and versatile metal-acid catalysts for hydrolysis-hydrogenation-dehydration cascade reactions. Herein, we report a new type of metal-acid bifunctional catalyst by dispersing Ru nanoparticles (NPs) on magnetic yolk-shell nanoarchitectures comprising an Fe3O4 core and a sulfoacid (SO3H)-containing periodic mesoporous organosilica shell...
January 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29333956/high-efficiency-treatment-of-pta-wastewater-using-a-biogas-jet-assisted-anaerobic-fluidized-bed-reactor
#5
Wei Zhang, Yangyang Feng, Yingwen Chen, Peiwen Li, Shemin Zhu, Shubao Shen
In this paper, a new type of biogas jet assisted anaerobic fluidized bed reactor loaded with a polypropylene (PP) carrier, has been proposed. There was a clear improvement in the fluidized state due to the biogas assisted input when the gas/water ratio was set at 1:3 with a suitable carrier loading of 60%. When the circulating water flow is 30 L/min assisted with biogas 10 L/min, the mixing time shortens from 26 s to 18 s. The performance of anaerobic biodegradation on wastewater treatment was improved largely...
January 15, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29333763/polymer-passivated-inorganic-cesium-lead-mixed-halide-perovskites-for-stable-and-efficient-solar-cells-with-high-open-circuit-voltage-over-1-3-v
#6
Qingsen Zeng, Xiaoyu Zhang, Xiaolei Feng, Siyu Lu, Zhaolai Chen, Xue Yong, Simon A T Redfern, Haotong Wei, Haiyu Wang, Huaizhong Shen, Wei Zhang, Weitao Zheng, Hao Zhang, John S Tse, Bai Yang
Cesium-based trihalide perovskites have been demonstrated as promising light absorbers for photovoltaic applications due to their superb composition stability. However, the large energy losses (Eloss ) observed in inorganic perovskite solar cells has become a major hindrance impairing the ultimate efficiency. Here, an effective and reproducible method of modifying the interface between a CsPbI2 Br absorber and polythiophene hole-acceptor to minimize the Eloss is reported. It is demonstrated that polythiophene, deposited on the top of CsPbI2 Br, can significantly reduce electron-hole recombination within the perovskite, which is due to the electronic passivation of surface defect states...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29332954/determination-of-the-boltzmann-constant-with-cylindrical-acoustic-gas-thermometry-new-and-previous-results-combined
#7
X J Feng, J T Zhang, H Lin, K A Gillis, J B Mehl, M R Moldover, K Zhang, Y N Duan
We report a new determination of the Boltzmann constant kB using a cylindrical acoustic gas thermometer. We determined the length of the copper cavity from measurements of its microwave resonance frequencies. This contrasts with our previous work (Zhang et al 2011 Int. J. Thermophys.32 1297, Lin et al 2013 Metrologia50 417, Feng et al 2015 Metrologia52 S343) that determined the length of a different cavity using two-color optical interferometry. In this new study, the half-widths of the acoustic resonances are closer to their theoretical values than in our previous work...
October 2017: Metrologia
https://www.readbyqxmd.com/read/29332953/determination-of-the-molar-mass-of-argon-from-high-precision-acoustic-comparisons
#8
X J Feng, J T Zhang, M R Moldover, I Yang, M D Plimmer, H Lin
This article describes the accurate determination of the molar mass M of a sample of argon gas used for the determination of the Boltzmann constant. The method of one of the authors (Moldover et al 1988 J. Res. Natl. Bur. Stand.93 85-144) uses the ratio of the square speed of sound in the gas under analysis and in a reference sample of known molar mass. A sample of argon that was isotopically-enriched in 40Ar was used as the reference, whose unreactive impurities had been independently measured. The results for three gas samples are in good agreement with determinations by gravimetric mass spectrometry; (〈Macoustic/Mmass-spec〉 - 1) = (-0...
June 2017: Metrologia
https://www.readbyqxmd.com/read/29332922/role-of-gene-polymorphisms-haplotypes-and-plasma-level-of-tgf-%C3%AE-1-in-susceptibility-to-in-stent-restenosis-following-coronary-implantation-of-bare-metal-stent-in-chinese-han-patients
#9
Hai-Jian Chen, Ni Mo, Yan-Feng Zhang, Guo-Zhu Su, Han-Dong Wu, Fang Pei
Transforming growth factor (TGF)-β1 has been implicated in the pathogenesis of restenosis. However, the role of TGF-β1 polymorphisms in development of in-stent restenosis (ISR) after coronary bare metal stent (BMS) implantation in Chinese Han population has not been reported to date. The aim of this study was to explore the association between TGF-β1 gene polymorphisms (-509C/T and 869T/C) and its plasma level in Chinese Han patients with BMS-ISR.We investigated 419 patients after successful coronary stent placement...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29332918/plasmatic-microrna-signatures-in-elderly-people-with-stable-and-unstable-angina
#10
Yuxia Cui, Junxian Song, Sufang Li, Chongyou Lee, Feng Zhang, Hong Chen
We aimed to investigate the distinctive miRNA profiles in the plasma of elderly patients with unstable angina (UA) and stable angina (SA), and to find more effective markers of UA in elderly people. We compared miRNA expression levels in plasma samples from 10 elderly patients with UA and 10 elderly patients with SA by using microarray-based miRNA chip, and then performed validation with Real-time PCR. Mir-1202, mir-1207-5p, and mir-1225-5p showed a statistically significant down-regulation (P < 0.05), while mir-3162-3p showed an up-regulation (P < 0...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29332456/the-combined-antitumor-effects-of-125i-radioactive-particle-implantation-and-cytokine-induced-killer-cell-therapy-on-xenograft-hepatocellular-carcinoma-in-a-mouse-model
#11
Junyong Zhang, Nian Wu, Zhengrong Lian, Huyi Feng, Qing Jiang, Xianfeng Chen, Jianping Gong, Zhengrong Qiao
The combination of radiotherapy and immunotherapy has shown great promise in eradicating tumors. For example, 125I radioactive particle implantation and cytokine-induced killer cell therapies have demonstrated efficacy in treating hepatocellular carcinoma. However, the mechanism of this combination therapy remains unknown. In this study, we utilized cytokine-induced killer cells obtained from human peripheral blood mononuclear cells along with 125I radioactive particle implantation to treat subcutaneous hepatocellular carcinoma xenograft tumors in BALB/c nude mice...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29332452/the-dnmt3b-579g-t-polymorphism-is-significantly-associated-with-the-risk-of-gastric-cancer-but-not-lung-cancer-in-chinese-population
#12
Bifeng Chen, Jingdong Wang, Xiuli Gu, Jingli Zhang, Jiankun Zhang, Xianhong Feng
The -149C>T and -579G>T, 2 single nucleotide polymorphisms in de novo methyltransferase 3B gene promoter, have been previously reported to potentially alter the promoter activity and to influence cancer risk. However, the results from previous studies remain conflicting rather than conclusive. In view of this, we conducted a case-control study and then a meta-analysis to examine the association between these 2 single-nucleotide polymorphisms with risk of lung and gastric cancer in Chinese population. The genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism and confirmed by sequencing...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29332449/mir-452-3p-a-potential-tumor-promoter-that-targets-the-cpeb3-egfr-axis-in-human-hepatocellular-carcinoma
#13
Hui Tang, Jianwen Zhang, Zhenyu Yu, Linsen Ye, Kun Li, Fan Ding, Xiao Feng, Wei Meng
PURPOSE: We proposed to investigate the effects of miR-452-3p on the proliferation and mobility of hepatocellular carcinoma (HCC) cells by targeting cytoplasmic polyadenylation element binding protein 3/estimated glomerular filtration rate (CPEB3/EGFR) axis. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect miR-452-3p expression in 84 pairs of HCC tissues and adjacent tissues. Luciferase reporter assay was employed to examine the relationship between miR-452-3p and CPEB3...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29332353/aesculetin-6-7-dihydroxycoumarin-exhibits-potent-and-selective-antitumor-activity-in-human-acute-myeloid-leukemia-cells-thp-1-via-induction-of-mitochondrial-mediated-apoptosis-and-cancer-cell-migration-inhibition
#14
Jian Gong, Wei-Guo Zhang, Xiao-Fen Feng, Mei-Juan Shao, Chao Xing
PURPOSE: The main target of the present research was to examine the antitumor properties of aesculetin in human acute myeloid leukemia cancer cells (THP-1) and peripheral blood mono-nucleated cells (PBMCs) (used as normal cell line model) along with the determination of its effects on induction of apoptosis, inhibition of cancer cell migration and changes in Bcl-2/Bax protein expressions. METHODS: MTT colorimetric bioassay was performed to study the impact of this natural compound on cytotoxicity of both cell types...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332194/the-active-glycosides-from-urtica-fissa-rhizome-decoction
#15
Mengyue Wang, Ying Zhang, Hao Zhang, Xiaoru Feng, Xiaobo Li
Using bioassay guided fractionation, 16 glycosides, including two new compounds (1 and 2), were isolated from the anticomplement and anti-inflammatory portion of an Urtica fissa rhizome decoction used for arthritis. Several compounds were found to possess significant anticomplement and anti-inflammatory activities. This study revealed that glycosides played an important role in the therapeutic effects of Urtica fissa rhizome.
January 13, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29332156/enterocytozoon-bieneusi-genotypes-in-tibetan-sheep-and-yaks
#16
Qiang Zhang, Jinzhong Cai, Pei Li, Lin Wang, Yaqiong Guo, Chunhua Li, Mengtong Lei, Yaoyu Feng, Lihua Xiao
Few studies have been conducted on the distribution of Enterocytozoon bieneusi genotypes in Tibetan sheep and yaks, which live outdoors in extreme climate with high altitude. In this study, fecal specimens from 312 Tibetan sheep and 554 yaks in Qinghai, China, were collected and examined for E. bieneusi by PCR-sequence analysis of the ribosomal internal transcribed spacer. Among them, 73 (23.4%) specimens from Tibetan sheep and 40 (7.2%) from yaks were positive for E. bieneusi. There were eight E. bieneusi genotypes in Tibetan sheep, including three known ones (BEB6, COS-I, and NESH5) and five novel ones (named as CHS13-CHS17)...
January 14, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29331977/clinical-outcomes-and-prognostic-factors-in-patients-with-spinal-dural-arteriovenous-fistulas-a-prospective-cohort-study-in-two-chinese-centres
#17
Yongjie Ma, Sichang Chen, Chao Peng, Chunxiu Wang, Guilin Li, Chuan He, Ming Ye, Tao Hong, Lisong Bian, Jiang Liu, Zhichao Wang, Adnan I Qureshi, Feng Ling, Hongqi Zhang
BACKGROUND: The short-term outcomes and prognostic factors of patients with spinal dural arteriovenous fistulas (SDAVFs) have not been defined in large cohorts. OBJECTIVE: To define the short-term clinical outcomes and prognostic factors in patients with SDAVFs. METHODS: A prospective cohort of 112 patients with SDAVFs were included consecutively in this study. The patients were serially evaluated with the modified Aminoff and Logue's Scale (mALS) one day before surgery and at 3 months, 6 months and 12 months after treatment...
January 13, 2018: BMJ Open
https://www.readbyqxmd.com/read/29331887/idh1r132h-promotes-malignant-transformation-of-benign-prostatic-epithelium-by-dysregulating-micrornas-involvement-of-igf1r-akt-stat3-signaling-pathway
#18
Lili Zhang, Mei Qi, Tingting Feng, Jing Hu, Lin Wang, Xinjun Li, Wei Gao, Hui Liu, Meng Jiao, Zhen Wu, Xinnuo Bai, Yifan Bie, Long Liu, Bo Han
Risk stratification using molecular features could potentially help distinguish indolent from aggressive prostate cancer (PCa). Mutations in isocitrate dehydrogenase (IDH) acquire an abnormal enzymatic activity, resulting in the production of 2-hydroxyglutarate and alterations in cellular metabolism, histone modification, and DNA methylation. Mutant IDH1 has been identified in various human malignancies, and IDH1R132H constituted the vast majority of mutational events of IDH1. Most recent studies suggested that IDH1 mutations define a methylator subtype in PCa...
January 11, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29331529/effect-of-acids-produced-from-carbohydrate-metabolism-in-cryoprotectants-on-the-viability-of-freeze-dried-lactobacillus-and-prediction-of-optimal-initial-cell-concentration
#19
Shumao Cui, Feng Hang, Xiaoming Liu, Zhiyuan Xu, Zhenmin Liu, Jianxin Zhao, Hao Zhang, Wei Chen
For the industrial production of probiotics powder, various sugars have been used as cryoprotectants to preserve probiotics during freeze-drying. Some of these sugars can be metabolized by Lactobacillus with the production of acids during the mix. In this study, we investigated the effect of acids on ATPase, β-galactosidase, lactate dehydrogenase (LDH), integrity and fluidity of cell membrane and the survival rate of Lactobacillus during freeze-drying. In the presence of Lactobacillus, acids were produced from cryoprotectants containing fermentable sugars before freezing, resulting in a decrease in the pH of the bacterial suspension to below 5...
January 11, 2018: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29331495/role-of-bcl2l10-in-regulating-buffalo-bubalus-bubalis-oocyte-maturation
#20
Yu-Lin Huang, Huan-Jing Wang, Fu-Mei Chen, Xiu-Ling Zhao, Qiang Fu, Peng-Fei Zhang, Li-Ping Pu, Feng-Ling Huang, Yang-Qing Lu, Ming Zhang
It has been reported that BCL2L10 is abundantly and specifically expressed in adult human and mouse oocytes and played a very important role in oocytes maturation and early embryonic development. This study is to investigate the expression pattern of BCL2L10 in buffalo ovaries and its effect on the in vitro maturation of buffalo oocytes, so as to dissect mechanism of oocytes maturation and provide theoretical guidance for improvement of the in vitro maturation of buffalo oocytes. The results showed that BCL2L10 gene was enriched in ovary and the expression of BCL2L10 was oocyte specific and up-regulated during oocyte maturation...
December 30, 2017: Theriogenology
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