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42篇 您的检索式:作者名="Qingqing Fang"
    题名 作者 年代 出处 被引量
1Self-monitoring of blood glucose in type 2 diabetic patients in China:current status and influential factors显示文摘Yuan Li Guo Xiaohui Xiong Zhenzhen Lou Qingqing Shen Li Zhao Fang Sun Zilin Li Jianwei 2014Chinese Medical Journal2014,,2:21
2The heterogeneity of islet autoantibodies and the progression of islet failure in type 1 diabetic patients显示文摘Type 1 diabetes mellitus is heterogeneous in many facets. The patients suffered from type 1 diabetes present several levels of islet function as well as variable number and type of islet-specific autoantibodies. This study was to investigate prevalence and heterogeneity of the islet autoantibodies and clinical phenotypes of type 1 diabetes mellitus; and also discussed the process of islet failure and its risk factors in Chinese type 1 diabetic patients. A total of 1,291 type 1 diabetic patients were enrolled in this study. Demographic information was collected. Laboratory tests including mixed-meal tolerance test, human leukocyte antigen alleles, hemoglobin A1 c, lipids, thyroid function and islet autoantibodies were conducted. The frequency of islet-specific autoantibody in newly diagnosed T1 DM patients(duration shorter than half year) was 73% in East China. According to binary logistic regressions, autoantibody positivity, longer duration and lower Body Mass Index were the risk factors of islet failure. As the disease developed, autoantibodies against glutamic acid decarboxylase declined as well as the other two autoantibodies against zinc transporter 8 and islet antigen 2. The decrease of autoantibodies was positively correlated with aggressive beta cell destruction. Autoantibodies can facilitate the identification of classic T1 DM from other subtypes and predict the progression of islet failure. As there were obvious heterogeneity in autoantibodies and clinical manifestation in different phenotypes of the disease, we should take more factors into consideration when identifying type 1 diabetes mellitus.Jin Liu Lingling Bian Li Ji Yang Chen Heng Chen Yong Gu Bingqin Ma Wei Gu Xinyu Xu Yun Shi Jian Wang Dalong Zhu Zilin Sun Jianhua Ma Hui Jin Xing Shi Heng Miao Bing Xin Yan Zhu Zhenwen Zhang Ruifang Bu Lan Xu Guangde Shi Wei Tang Wei Li Dongmei Zhou Jun Liang Xingbo Cheng Bimin Shi Jixiang Dong Ji Hu Chen Fang Shao Zhong Weinan Yu Weiping Lu Chenguang Wu Li Qian Jiancheng Yu Jialin Gao Xiaoqiang Fei Qingqing Zhang Xueqin Wang Shiwei Cui Jinluo Cheng Ning Xu Guofeng Wang Guoqing Han Chunrong Xu Yun Xie Minmin An Wei Zhang Zhixiao Wang Yun Cai Qi Fu Yu Fu Shuai Zheng Fan Yang Qingfang Hu Hao Dai Yu Jin Zheng Zhang Kuanfeng Xu Yifan Li Jie Shen Hongwen Zhou Wei He Xuqin Zheng Xiao Han Liping Yu Jinxiong She Mei Zhang Tao Yang 2016Science China(Life Sciences)2016,59,9:5
3Rejection of insulin therapy among patients with type 2 diabetes in China: reasons and recommendations显示文摘Xiong Zhenzhen Yuan Li Guo Xiaohui Lou Qingqing Zhao Fang Shen Li Zhang Mingxia Sun Zilin 2014Chinese Medical Journal2014,,20:4
4A multi-axis robot-based bioprinting system supporting natural cell function preservation and cardiac tissue fabrication显示文摘Despite the recent advances in artificial tissue and organ engineering,how to generate large size viable and functional complex organs still remains as a grand challenge for regenerative medicine.Three-dimensional bioprinting has demonstrated its advantages as one of the major methods in fabricating simple tissues,yet it still faces difficulties to generate vasculatures and preserve cell functions in complex organ production.Here,we overcome the limitations of conventional bioprinting systems by converting a six degree-of-freedom robotic arm into a bioprinter,therefore enables cell printing on 3D complex-shaped vascular scaffolds from all directions.We also developed an oil bath-based cell printing method to better preserve cell natural functions after printing.Together with a self-designed bioreactor and a repeated print-and-culture strategy,our bioprinting system is capable to generate vascularized,contractible,and long-term survived cardiac tissues.Such bioprinting strategy mimics the in vivo organ development process and presents a promising solution for in vitro fabrication of complex organs.Zeyu Zhang Chenming Wu Chengkai Dai Qingqing Shi Guoxin Fang Dongfang Xie Xiangjie Zhao Yong-Jin Liu Charlie CLWang Xiu-Jie Wang 2022Bioactive Materials2022,7,12:4
5Structural Characterization of Glucan Produced by Lactobacillus sake L-7 from Sausage显示文摘A linear glucan was produced by Lactobacillus sake L-7 isolated from homemade sausage. Cultivation of the strain in Man–Rogosa–Sharpe(MRS) medium containing 50 g/L sucrose yielded 5.3 g/L of purified exopolysaccharide(EPS). The EPS was characterized by gas chromatography(GC), Fourier-transform infrared(FT-IR) spectroscopy, high-performance sizeexclusion chromatography(HPSEC), nuclear magnetic resonance(NMR) spectroscopy, and scanning electron microscopy(SEM). The monosaccharide composition of the EPS was glucose, and its molecular weight was 1 × 10~7 Da. The FT-IR and NMR spectra revealed that the L-7 EPS was a linear glucan with α-(1 → 6) glucosidic bonds. SEM images of the dried EPS revealed a hollow tubular structure. The water solubility index and water holding capacity of L-7 EPS were 96 and 272%, respectively. The results of hydrolysis indicated that L-7 EPS was not susceptible to hydrolysis by physiological barriers and can be used as a soluble dietary fiber with health benefits. All these characteristics suggest that L-7 EPS might have potential applications in the food, cosmetic, and pharmaceutical industries.Fang Feng Qingqing Zhou Yanfang Yang Fangkun Zhao Renpeng Du Ye Han Zhijiang Zhou 2019Transactions of Tianjin University2019,25,1:3
6Efficient and secure auditing scheme for outsourced big data with dynamicity in cloud显示文摘Big data offers significant benefits; however, security and privacy problems must be considered,especially with regard to outsourced big data. Auditing outsourced big data is an important factor in security and privacy. However, most of the existing auditing techniques are not suitable for outsourced big data due to their high computational and communication costs at the auditor and the data owner (DO) side. In this paper, we propose an efficient auditing scheme for outsourced big data based on algebraic signatures and an XOR-homomorphic function, that can achieve numerous advantages, such as fewer challenges and proofs,non-block verification, data privacy preservation, and lower computational and communication costs. The proposed scheme enables a trusted third-party auditor, on behalf of DOs, to audit the outsourced data in a cloud. Thus, reducing the computational burden on the DOs. Subsequently, we construct a new data structure called a Record Table(RTable) and extend the basic auditing scheme to support the data dynamic operations. As our extended scheme does not use public key encryption, the entire process of updating the data incurs only a small computational and communication overhead with regard to the auditor, the DOs,and the cloud server. Finally, the proposed basic scheme is proved secure under the security model against various attacks. Analysis of the performance shows that both our basic scheme and extended scheme are highly efficient.Qingqing GAN Xiaoming WANG Xuefeng FANG 2018Science China(Information Sciences)2018,61,12:3
7Thermal-reductive transformations of carbon dioxide catalyzed by small molecules using earth-abundant elements显示文摘In the present review, we summarize the progress for thermal reductive transformations of CO2 catalyzed by small homogeneous catalysts using earth-abundant elements. Three main types of transformations categorized by the use of different reductants(hydrogen, hydrosilanes, and boranes), in which no C–C bond formation is involved, are surveyed.Muhua Liu Tian Qin Qingqing Zhang Chi Fang Yao Fu Bo-Lin Lin 2015Science China Chemistry2015,58,10:3
8Defective Ni_(3)S_(2)nanowires as highly active electrocatalysts for ethanol oxidative upgrading显示文摘Electrochemical upgrading of biomass ethanol to value-added chemicals is promising for sustainable society.Here,we synthesize defective Ni_(3)S_(2) nanowires(NWs),which show high activity towards electrochemical oxidation of ethanol to acetate.The Ni_(3)S_(2) NWs are formed by the oriented attachment mechanism,and rich defects are introduced during the growth.A low onset potential of 1.31 V and high mass activity of 8,716 mA·mgNi^(-1) at 1.5 V are achieved using the synthesized Ni_(3)S_(2) NWs toward the ethanol electro-oxidation,which are better than the Ni(OH)2 NWs and the Ni_(3)S_(2) nanoparticles(NPs).And the selectivity for the acetate generation is ca.99%.The high activity of Ni_(3)S_(2) NWs is attributed to the easier oxidation of Ni(II)to the catalytically active Ni(III)species with the promotion from S component and rich defects.These results demonstrate that the defective NWs can be synthesized by the oriented attachment method and the defective Ni_(3)S_(2) NWs structure as the efficient nonnoble metal electrocatalysts for oxidative upgrading of ethanol.Yufeng Zhang Wei Zhu Jinjie Fang Zhiyuan Xu Yanrong Xue Di Liu Rui Sui Qingqing Lv Xuerui Liu Yongsheng Wang Wei Chen Zhongbin Zhuang 2022Nano Research2022,15,4:2
9Mn atomic layers under inert covers of graphene and hexagonal boron nitride prepared on Rh(111)显示文摘进 graphene 和它的支持的底层的接口的金属原子的置闰为削弱联合并且构造金属的接口的缘故成为了一个吸引人的话题在惰性的封面下面的原子层。然而,这新奇行为很少在类似的六角形的硼氮化物(h-BN ) 上被报导了在金属底层上综合了。这里,我们描述 Mn 置闰的比较研究进 graphene/Rh (111 ) 和 h-BN/Rh (111 ) 的接口,由使用解决 atomically 的扫描通道显微镜学(STM ) 和密度功能的理论(DFT ) 计算。置闰被退火执行同样扔的 Mn 簇,和进 h-BN/Rh (111 ) 的 Mn 置闰的开始的温度被发现是 80 瑩 ?? 数歡瀠睯牥搠湥楳祴漠 ??? ″坭洯吗?Yu Zhang Yanfeng Zhang Donglin Ma Qingqing Ji Wei Fang Jianping Shi Teng Gao Mengxi Liu Yabo Gao Yubin Chen Limei Xu Zhongfan Liu 2013Nano Research2013,6,12:2
10Isolation, Purification, and Characterization of Exopolysaccharide Produced by Leuconostoc Citreum N21 from Dried Milk Cake显示文摘A strain with high production of exopolysaccharide(EPS) was isolated from dried milk cake(a traditional fermented food from Inner Mongolia). The strain was called N21 and later identified as Leuconostoc citreum( Leu. citreum). The strain was cultured in Man-Rogosa-Sharpe medium containing 50 g/L of sucrose for 48 h at 30 °C and the EPS purified, with a yield of 24.5 g/L. An average molecular weight of 6.07 × 10~6 g/mol was determined by high-performance size-exclusion chromatography. The structure of the purified EPS was investigated through gas chromatography, ~1H and ^(13)C nuclear magnetic resonance spectroscopy, and Fourier transform infrared spectroscopy. The results demonstrated a polysaccharide composed of D-glucopyranose units in a linear chain with consecutive α(1 → 6) linkages. No branching was found in the structure of the exopolysaccharide. The purified EPS showed high water solubility and emulsibility. Based on the thermogravimetric curve, the degradation temperature of the EPS was 308.47 °C, which suggested that the dextran in the study exhibited high thermal stability. The results indicated that Leu. citreum N21 could be widely used to produce linear EPS and that the EPS has potential applications in food science and processing as a food additive.Yanfang Yang Fang Feng Qingqing Zhou Fangkun Zhao Renpeng Du Zhijiang Zhou Ye Han 2019Transactions of Tianjin University2019,25,2:2
11E3 ligase FBXW7 aggravates TMPD-induced systemic lupus erythematosus by promoting cell apoptosis显示文摘Systemic lupus erythematosus(SLE)is a systemic autoimmune disease,and the pathogenesis of SLE has not been fully elucidated.The E3 ubiquitin ligase FBXW7 has been well characterized in cancer as a tumor suppressor that can promote the ubiquitination and subsequent degradation of various oncoproteins;however,the potential role of FBXW7 in autoimmune diseases is unclear.In the present study,we identified that FBXW7 is a crucial exacerbating factor for SLE development and progression in a mouse model induced by 2,6,10,14-tetramethylpentadecane(TMPD).Myeloid cell-specific FBXW7-deficient(Lysm+FBXW7f/f)C57BL/6 mice showed decreased immune complex accumulation,glomerulonephritis,glomerular mesangial cell proliferation,and basemembrane thickness in the kidney.Lysm+FBXW7f/f mice produced fewer anti-Sm/RNP and anti-ANA autoantibodies and showed a decreased MHC II expression in B cells.In Lysm+FBXW7f/f mice,we observed that cell apoptosis was reduced and that fewer CD11b+Ly6Chi inflammatory monocytes were recruited to the peritoneal cavity.Consistently,diffuse pulmonary hemorrhage(DPH)was also decreased in Lysm+FBXW7f/f mice.Mechanistically,we clarified that FBXW7 promoted TMPD-induced cell apoptosis by catalyzing MCL1 degradation through K48-linked ubiquitination.Our work revealed that FBXW7 expression in myeloid cells played a crucial role in TMPD-induced SLE progression in mice,which may provide novel ideas and theoretical support for understanding the pathogenesis of SLE.Zhenlu Chong Chunjing Bao Jia He Tianxiao Chen Lijia Zhong Gaopeng Li Huanle Li Lutong Fang Yinjing Song Guoxiang Fu Xuyan Yang Lihua Lai Yang Liu Qingqing Wang 2018Cellular & Molecular Immunology2018,15,12:2
12A Comparative Study of Electrochemical Capacitance of Graphene Oxide Affected by Oligomers of p-phenylenediamine and Hydrazine Hydrate in Solvothermal Condition显示文摘A systematic investigation of the graphene oxide composite reduced by either p-phenylenediamine oligomers or hydrazine hydrate was performed with field emission scanning electron microscopy,high resolution transmission electron microscopy,X-ray diffraction,fourier transform infrared,and X-ray photoelectron spectroscopy analyses.The electrical capacitance of the composite was evaluated by a cyclic voltammetry technique,while the properties of these prototype supercapacitors were measured by a chronopotentiometry technique.It was found that,under the solvothermal condition,the graphene oxide reduced by p-phenylenediamine oligomers was observed to have higher electrical capacitance than that reduced by hydrazine.The improved electrical capacitance can be attributed to that p-phenylenediamine oligomers are the more effective spacers for graphene layers;and they could also provide some pseudo-capacitance to the graphene oxide composite based on their conjugate structure.The results imply that graphene oxide modified by diamine oligomers has a good potential in energy storage devices.ZHANG Qingqing ZHANG Qingwu LU Hao WANG Wei FANG Tian LIU Hongying LIU Jiaji WANG Shuangshuang 2020Journal of Wuhan University of Technology(Materials Science)2020,35,2:2
13GPP(composition of Ganoderma lucidum polysaccharides and Polyporus umbellatus polysaccharides) protects against DSS-induced murine colitis by enhancing immune function and regulating intestinal flora显示文摘Previous study have demonstrated that a compound composed of water-soluable Ganoderma lucidum polysaccharides(GLP)and Polyporus umbellatus polysaccharides(PUP)in a ratio of 3:1 named GPP enhances innate immune function in mice through enhancing the function of macrophage cells and activity of natural killer(NK)cells.Here in our research,we further investigated the effect of GPP on the diversity and composition of intestinal flora,and explored its effect on colitis model mice.The immunoregulatory verification experiments of GPP were conducted in both normal and DSS-induced mice model.Our research showed that GPP increased the diversity of intestinal microorganisms in mice with the extension of administration time.Daily GPP intake attenuated DSS-induced colon injury,protected the splenic lymphocyte proliferation ability,enhanced the serum hemolysin synthesis,and increased peripheral phagocytes and NK cell activity in model mice.Comparisons of the predominant gene pathways of the bacterial microbiota showed that DNA repair and recombination,base mismatch repair pathways was stronger in GPP-treatment group than in control group,indicating the possible molecular mechanisms of immune function regulation.Our study showed that GPP regulated immune function in both health and colitis model,and had a positive effect on maintaining intestinal flora homeostasis.Liyuan Li Yannan Guo Qing Huang Xiaojin Shi Qingqing Liu Fang Wang Qingfei Liu Kang Yu Zhao Wang 2022Food Science and Human Wellness2022,11,4:2
14Doping effect on crystal structure and magnetic properties of chromium substituted strontium hexaferrite nanoparticles显示文摘Fang Qingqing Cheng Hui Huang Kai 2005J Magn Magn Mater2005,,294:1
15Profile of pediatric glaucoma patients in Shanghai Eye, Ear, Nose and Throat Hospital显示文摘Fang Yuan Long Qingqing Guo Wenyi Sun Xinghuai 2014Chinese Medical Journal2014,,8:1
16Multi-armed poly( l -glutamic acid)-graft-polypropyleneinime as effective and serum resistant gene delivery vectors显示文摘Xuan Zhang Haimei Hu Tiebang Liu Yeya Yang Yuefeng Peng Qingqing Cai Lijing Fang 2014International Journal of Pharmaceutics2014,,:1
17Pulsed laser deposition of Li-N dual acceptor in p-ZnO: (Li, N) thin film and the p-ZnO: ( Li, N )/n-ZnO homoj unctions on Si ( 100 ) 显示文摘YANG Jingjing FANG Qingqing WANG Weina 2014Journal of Applied Physics2014,115,12:1
18Antihyperglycemic, antihyperlipidemic and antioxidant effects of ethanol and aqueous extracts of Cyclocarya paliurus leaves in type 2 diabetic rats显示文摘Qingqing Wang Cuihua Jiang Shengzuo Fang Junhu Wang Yun Ji Xulan Shang Yicheng Ni Zhiqi Yin Jian Zhang 2013Journal of Ethnopharmacology2013,,3:1
19Dop ing effect on crystal structure and magnetic properties of chromium substituted strontium hexaferrite nanoparticles 显示文摘Fang Qingqing Cheng Hui Huang Kai 2005J Magn Magn Mater2005,294,:1
20Landscape genetic analyses reveal host association of mitochondrial haplotypes in the Asian corn borer,Ostrinia furnacalis显示文摘Crop expansion often leads to high pest pressure.These pests may have fitness trade-offs related to host use,and some host-associated genotypes may benefit and increase in frequency.However,evidence concerning the effect of host availability on spatial distribution and frequency of mitochondrial haplotypes is scarce.We studied genetic variation of the Asian corn borer,Ostrinia furnacalis(Guenée),across a large area during 2 years(2016 and 2017).Mitochondrial sequence data were obtained from 530 individuals collected from 79 locations in Shandong Province,China.In total,155 haplotypes were found based on the combined cytochrome oxidase subunit 1(COI)and COII genes.Three haplotypes(H2,H12,and H23)were dominant,whereas most of the other haplotypes occurred in low frequency.A haplotype network showed that the 155 haplotypes can be grouped into three clusters.Haplotype clusters seemed to be randomly distributed.The frequency of H12(in Cluster 1)was positively correlated with maize crop proportion,but negatively correlated with other crops(primarily vegetables,oilseed crops,and cotton)at all spatial scales(1-,3-,and 5-km radius).Cluster 2 had haplotype H23,and this cluster was negatively correlated with semi-natural habitats.Cluster 3 had no dominant haplotype and was not affected by landscape factors.We conclude that H12 may be a maize-associated haplotype.Further study is needed to verify the possibility that the carriers of this haplotype may possess some fitness trade-offs.Our study highlights the importance of host availability in O.furnacalis haplotype distribution and frequency.Zhaoke Dong Chao Li Qingqing Zhang Lili Li Zengbin Lu Fang Ouyang Yingying Song Yi Yu Xingyuan Men 2021Insect Science2021,28,4:1
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