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16篇 您的检索式:作者名="Lingling Mei"
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1Toxicological effects involved in risk assessment of rare earth lanthanum on roots of Vicia faba L.seedlings显示文摘Combined chemical analyses and biological measurements were utilized to investigate potential toxicological effects and possible mechanisms involved in risk assessment of rare earth elements (REEs) on Vicia faba L.seedlings,which were hydroponically cultivated and exposed to various concentrations of lanthanum (La) for 15 days.The results showed that La contents in both the solution and roots increased with the increase of extraneous La,contributing to hormetic dose responses of superoxide dismutase (SOD),catalase (CAT),guaiacol peroxidase (GPX),ascorbate peroxidase (APX) and endoprotease (EP) isozymes activities,and HSP 70 production enhanced at low doses but suppressed at higher doses of La.These physiological responses constituted antioxidant and detoxification systems against La-induced oxidative stress.The elevated La levels also contributed to oxidatively modified proteins,which were most responsible for subsequent cell death and growth retardation of the roots.By combination of hormetic and traditional threshold dose levels,the threshold dose range was deduced to be 108-195 μg La/g dry weight in the roots,corresponding to 0.90-3.12 mg/L of soluble La in the culture solution.It suggests that persistent applications of REEs may lead to potential ecological risk in the environment.Chengrun Wang Mei He Wen Shi Jessie Wong Tao Cheng Xiaorong Wang Lingling Hu Fenfen Chen 2011Journal of Environmental Sciences2011,23,10:9
2Correlation analysis of Treg/Th17 cells and related cytokines in patients with psoriasis vulgaris显示文摘OBJECTIVE: To investigate potential differences in circulating levels of T regulatory (Treg)/T helper 17 (Th17) cells, related inflammatory cytokines and specific transcription factors in healthy individuals and patients with psoriasis conforming to one of three Traditional Chinese Medicine (TCM) syndromes: blood-heat syndrome (BHS), blood-stasis syndrome (BSS) and blood-dryness syndrome (BDS). METHODS: Sixty-seven patients with psoriasis were recruited and assigned to one of three corresponding TCM syndrome groups: BHS (n = 40), BSS (n = 14) and BDS (n = 13 patients). The control group comprised 21 healthy individuals. The circulating levels of Treg/Th17 cells in peripheral blood were assessed using flow cytometry;the levels of inflammatory cytokines interleukin (IL)-10 and tumor necrosis factor (TNF)-α by enzyme-linked immunosorbent assay;and the mRNA expression of T cell-specific transcription factors retinoic acid-related orphan receptor γt (RORγt) and forkhead box P3 (Foxp3) by quantitative real-time PCR. RESULTS: The ratio of Th17 cells and the levels of TNF-α and RORγt were all significantly higher in the BHS and BSS groups than the control group (P < 0.05), while the ratio of Treg cells and the levels of IL-10 and Foxp3 mRNA in the BHS group were significantly lower compared with the control group (P < 0.05). No significant differences were seen between the BSS group and the control group. The ratio of Th17 cells and the levels of TNF-α and RORγt in the BDS group were not significantly different from those of the control group;however, the ratio of Treg cells and the levels of IL-10 and Foxp3 were all lower than those in the healthy controls (P < 0.05). CONCLUSION: Compared with healthy individuals, the ratio of Th17 cells and the levels of related cytokines were higher, while the ratio of Treg cells and the levels of related cytokines were lower, in the peripheral blood of psoriasis/BHS patients;corresponding results for the BSS and BDS groups also showed differences. We propose that patterns of differentiation of immunological cells in psoriasis patients are reflected in corresponding TCM blood syndromes.Qu Tiange Mei Chencheng Zeng Yajun Li Lingling Duan Xingwu 2019Journal of Traditional Chinese Medicine2019,39,5:8
3The role of transcriptional factor D-site-binding protein in circadian CCL2 gene expression in anti-Thy1 nephritis显示文摘Mesangial proliferative glomerulonephritis(MsPGN)is an inflammatory disease,but both the nature of disease progression and its regulation remain unclear.In the present study,we monitored the course of anti-Thy1 nephritis from days 1 to 5 and established gene expression profiles at each time point using microarrays to explore the development of inflammation.According to the gene expression profiles,macrophage infiltration(triggered by CCL2 activation)was evident on day 1 and enhanced inflammation over the next few days.We screened for genes with expression levels similar to CCL2 and found that the upregulation of the circadian gene albumin D-site-binding protein(DBP)was involved in CCL2 activation in mesangial cells.More importantly,CCL2 expression showed oscillatory changes similar to DBP,and DBP induced peak CCL2 expression at 16:00 a clock on day 1 in the anti-Thy1 nephritis model.We knocked down DBP through transfection with a small interfering RNA(siRNA)and used RNA sequencing to identify the DBP-regulated TNF-α-CCL2 pathway.We performed chromatin immunoprecipitation sequencing(ChIP-Seq)and the dual luciferase assay to show that DBP bound to the TRIM55 promoter,regulating gene expression and in turn controlling the TNF-α-CCL2 pathway.In conclusion,DBP-regulated circadian CCL2 expression by the TRIM55-TNF pathway in injured mesangial cells at an early stage,which promoted macrophage recruitment and in turn triggered infiltration and inflammation in a model of anti-Thy1 nephritis.Yang Lu Yan Mei Lei Chen Lingling Wu Xu Wang Yingjie Zhang Bo Fu Xizhao Chen Yuansheng Xie Guangyan Cai Xueyuan Bai Qinggang Li Xiangmei Chen 2019Cellular & Molecular Immunology2019,16,9:7
4Effect of Jiawei Shenfu decoction on tumor necrosis factor-alpha and nuclear factor-kappa B in patients who have chronic heart failure with syndromes of deficiency of heart Yang显示文摘OBJECTIVE:To examine the clinical efficacy of Jiawei Shenfu decoction on tumor necrosis factor-alpha (TNF-cα) and nuclear factor-kappa B (NF-KB) levels in patients who have chronic heart failure with syndromes of deficiency of heart Yang.METHODS:A total of 63 patients with syndromes of deficiency of heart Yang (chronic heart failure)were enrolled.Patients were randomly divided into the control group and Jiawei Shenfu group.All patients received standard medications for treatment of chronic heart failure.Patients in the Jiawei Shenfu group were additionally provided Jiawei Shenfu decoction one dose daily.Treatments continued for 4 consecutive weeks.The primary endpoint was the change in plasma B-type natriuretic peptide (BNP),NF-KB,and TNF-cα levels during 4 weeks of treatment.RESULTS:At the 4-week follow-up,a significant reduction in BNP levels compared with baseline was observed in both groups,but the Jiawei Shenfu decoction group showed a significantly greater reduction than did the control group.The Jiawei Shenfu group also showed superior performance regarding the Minnesota Living with Heart Failure Questionnaire score,the Chinese medicine syndrome score,heart rate,left ventricular ejection fraction,and 6-min walking distance compared with the control group.The degree of changes in NF-KB and TNF-α levels in the Jiawei Shenfu group was more significant than that in the control group.CONCLUSION:Routine medicine combined with Jiawei Shenfu decoction for patients with heart Yang deficiency syndrome in chronic heart failure can improve the left ventricular ejection fraction and cardiac function,and reduce BNP levels.The mechanism may be related to inhibition of pro-inflammatory cytokines and the NF-KB-induced kinase pathway,leading to amelioration of the inflammatory response.Yu Mei Guo Hangyuan Ye Lingling Bian Jiaping Ma Lijuan Zheng Chunli 2019Journal of Traditional Chinese Medicine2019,39,3:6
5The 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
6Application of microcalorimetry of Escherichia coli growth and discrimin antanalysis to the quality assessment of a Chinese herbal injection(Yinzhihuang)显示文摘This paper describes a novel approach to the quality control of a Chinese herbal injection based on microca lorimetric determination of its effect on the biothermal active fingerprint(BTAF)of Escherichia coli(E.coli)growth.Yinzhihuang Injection(YZHI)was selected for this proof of concept study.Reference samples of Y ZHI were collected and compared with test(stressed)samples prepared under different stress conditions.The BTAF of E.coli growth was found to be affected by YZHI and the changes were analyzed on the basis of eleven biothermokinetic parameters.Similarity and multivariate statistical analysis were used to investi-gate the differences between reference and test samples and discriminant analysis was used to delineate the altered samples.Reference samples were found to have coincident BTAFs with similarity index>0.99.Stressed samples showed differences in the BTAF which increased in line with decreased quality.Discriminant formulae were developed based on a sensitivity parameter which could identify all altered samples.In conclusion,BTAF can be used to assess the quality of YZHI both qualitatively and quantitatively and has the potential to provide a sensitive method for quality control of Chinese herbal injections.Yongshen Ren Ping Zhang Dan Yan Yan Yan Longhu Chen Lingling Qiu Zhinan Mei Xiaohe Xiao 2012Acta Pharmaceutica Sinica B2012,2,3:3
7Prevalence of Listeria in Chinese food products from 13 provinces between 2000 and 2007 and virulence characterization of Listeria monocytogenes isolates 显示文摘CHEN Jianshun ZHANG Xiaofeng MEI Lingling 2009Foodborn Pathogenes and Disease2009,6,1:1
8Engineering large-scaled electrochromic semiconductor films as reproductive SERS substrates for operando investigation at the solid/liquid interfaces显示文摘Although surface-enhanced Raman spectroscopy(SERS)has been applied for gathering fingerprint information,even in single molecule analysis,the decayed Raman signals in aqueous solutions largely obstruct the on-site insight reaction process.In this study,large-scaled semiconductor films with multi-walled(TiO_(2)/WO_(3)/TiO_(2))nanopore distribution are fabricated by combining electrochemical anodization and sputtering technique,and then employed as the SERS substrates for detection of molecules at the solid/liquid interfaces.Given the remarkably improved electrochromic property of the multi-walled film,such SERS substrates were endowed with tunable oxygen vacancy(VO)density and distribution via simply applying electrochemical bias voltage,which enabled one to achieve an enhanced charge transfer efficiency and thus a remarkably increased Raman signal even in solution.The VO-rich SERS substrate is highly repeatable,thus providing a reliable platform for in-situ monitoring of the target molecules or intermediates at the solid/liquid interfaces.Lingling Yang Jiuju Feng Jia-Ning Wang Zhida Gao Jingwen Xu Ye Mei Yan-Yan Song 2022Chinese Chemical Letters2022,33,12:1
9Parathyroid hormone induces differentiation of mesenchymal stromal/stem cells by enhancing bone morphogenetic protein signaling显示文摘Bing Yu Xiaoli Zhao Chaozhe Yang Janet Crane Lingling Xian William Lu Mei Wan Xu Cao 2012J Bone Miner Res2012,,9:1
10Transplantationof Adipose Stromal Cells Promotes Neovascularizationof Random Skin Flaps显示文摘Lingling Sheng Mei Yang Hua Li 2011The Tohoku Journal of Experi-mental Medicine2011,224,3:1
11Evaluation of spatial-temporal variations and trends in surface water quality across a rural-suburban-urban interface显示文摘Kun Mei Lingling Liao Yuanli Zhu Ping Lu Zhenfeng Wang Randy A. Dahlgren Minghua Zhang 2014Environmental Science and Pollution Research2014,,13:1
12Puerarin suppresses proliferation of endometriotic stromal cells in part via differential recruitment of nuclear receptor coregulators to estrogen receptor-α显示文摘Mei Ji Yuhuan Liu Shengsheng Yang Dongxia Zhai Danying Zhang Lingling Bai Zhenzhi Wang Jin Yu Chaoqin Yu Zailong Cai 2013Journal of Steroid Biochemistry and Molecular Bio2013,,:1
13Surveillance and examination of microbial contamination in ice cream in China显示文摘This study investigated the microbial contamination of ice cream in China.A total of 2887 ice cream samples were collected from different regions of China.Contamination by the aerobic plate count(APC),coliforms,and three foodborne pathogens,Listeria monocytogenes(L.monocytogenes),Staphylococcus aureus(S.aureus),and Salmonella spp.,was detected in the samples.L.monocytogenes isolates were further analyzed for antibiotic susceptibility and multi-locus sequence typing(MLST).The results showed that APC was more than 10^(5) colony forming units(CFU)/g in 6.10%(176/2887)and coliform was more than 10^(2) CFU/g in 15.69%(453/2887)of all samples.The positive rates of S.aureus,L.monocytogenes,and Salmonella spp.were 0.66%,0.62%,and 0.10%,respectively.Among these,S.aureus contamination was more than 102 CFU/g in two samples,and L.monocytogenes in the positive sample was in the range of 0.3-240 most probable number(MPN)/g.with a median of 4.3 MPN/g.The hygienic status of the packaged samples was much better than that of the bulk samples(P<0.05).Catering samples were more frequently and heavily contaminated than samples from retail and wholesale outlets(P<0.05).No significant differences were observed in samples bought from urban and rural areas(P>0.05).For 18 L.monocytogenes strains isolated from ice cream,the resistance rate of nine antibiotics was 5.56%(1/18).By MLST,the L.monocytogenes strains were classified into nine sequence types(STs),of which ST8 was the most common(six isolates).These results indicate that a potential health risk to the public may be caused by ice cream,particularly in susceptiblepopulations.Lin Yan Xiaoyan Pei Junjie Miao Ying Li Shuran Yang Zixin Peng Xiaorong Yang Lingling Mei Qingwen Yang Huan Ren Dajin Yang Hongmei Shi 2022Food Quality and Safety2022,6,3:0
14Novel biomonitoring method for determining five classes of legacy and alternative flame retardants in human serum samples显示文摘Flame retardants(FRs)are ubiquitous in environment and biota and may pose harm to human health.In recent years,concern regarding legacy and alternative FRs has been intensified due to their widespread production and increasing contamination in environmental and human matrices.In this study,we developed and validated a novel analytical method for simultaneous determination of legacy and alternative FRs,including polychlorinated naphthalenes(PCNs),short-and middle-chain chlorinated paraffins(SCCPs and MCCPs),novel brominated flame retardants(NBFRs),and organophosphate esters(OPEs)in human serum.Serum samples were prepared by liquid-liquid extraction using ethyl acetate,and purified with Oasis®HLB cartridge and Florisil–silica gel columns.Instrumental analyses were carried out using gas chromatography-triple quadrupole mass spectrometry,highresolution gas chromatography coupled with high-resolution mass spectrometry,and gas chromatography coupled with quadrupole time-of-flight mass spectrometry,respectively.The proposed method was validated for linearity,sensitivity,precision,accuracy,and matrix effects.Method detection limits for NBFRs,OPEs,PCNs,SCCPs,and MCCPs were 4.6×10^(–4)–8.6×10^(–2),4.3×10^(–3)–1.3,1.1×10^(–5)–1.0×10^(–4),1.5,and 9.0×10–1 ng/mL,respectively.Matrix spike recoveries ranged from 73%–122%,71%–124%,75%–129%,92%–126%,and 94%–126%for NBFRs,OPEs,PCNs,SCCPs,and MCCPs,respectively.The analytical method was applied for detection of real human serum.CPs were the dominant FRs in serum,indicating CPs were widely presented in human serum and should be pay more attention for their health risk.Xiaolin Guan Gaoxin Zhang Lingling Meng Mei Liu Liyuan Zhang Chuxuan Zhao Yingming Li Qinghua Zhang Guibin Jiang 2023Journal of Environmental Sciences2023,,9:0
15A proteome-wide screen identifies valosin-containing protein as an essential regulator of podocyte endoplasmic reticulum stress显示文摘To investigate proteins expressed in the renal tissue of the passive Heymann nephritis (pHN) rat model,we prepared pHN rat models with anti-FxA1 serum and analyzed the proteins differentially expressed in the kidney tissue with label-free liquid chromatography-tandem mass spectrometry.We then analyzed in depth the endoplasmic reticulum stress (ERS)-related protein using an online bioinformatics platform.Forty-one differential proteins and their annotations were obtained.Gene Ontology (GO) function analysis showed that 16 proteins were involved in cellular metabolism and 22 were proteins related to catalytic activity,including protein folding or ATPase.Protein-GO networks indicated that VCP could interact with the ERS marker HSPa5,with both involved in a single pathway.On inhibition of podocyte VCP by RNAi under normal conditions,the HSPa5 expression level did not change,but when the cell was subjected to ERS by tunicamycin,HSPa5 expression significantly increased with RNAi of VCP when compared with the tunicamycin-treated group.Our results showed that ERS plays an important role in podocyte injury of membranous nephropathy and is mediated by an HSPa5-VCP signaling pathway,in which the most predominant proteins are those related to cellular metabolism and catalytic activity.HUANG ZhiYong HONG Quan XUE Peng PAUL Goulding FENG Zhe WANG LiYuan MEI Yan WU LingLing CHEN XiangMei WU Di 2012Chinese Science Bulletin2012,57,20:0
16Synthesis and characterization of CoS ball in cage structures显示文摘Ball in cage structures of cobalt sulfide have been successfully prepared by a facile one-pot hydrothermal synthesis approach employing Co(NO3)2·6H2O as the cobalt source and S=C(NH2)2 as the sulfur source. The effects of the reaction parameters (volume ratio of distilled water to ethanol, reaction time and reaction temperature) on the morphology and size of the CoS structures were investigated. The synthesized product was characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It has been confirmed that the volume ratio of distilled water to ethanol played a key role in the formation of the ball in cage structures, and the formation mechanism of the CoS ball in cage structures was also proposed. The electrochemical capacitance performances of the CoS products were studied, and the CoS ball in cage structures show excellent energy storage characteristics.CHEN Xu MEI Jie QIN ZhiYong SONG LingLing ZHANG XiaoBo LI XiaoYun BAO HaiFeng SHI JianJun ZHAO HuanYu 2013Science China Chemistry2013,56,4:0
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