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1Modeling study of regional severe hazes over mid-eastern China in January 2013 and its implications on pollution prevention and control显示文摘The Nested Air Quality Prediction Model System(NAQPMS)was used to investigate the temporal and spatial variations of PM2.5over tropospheric central eastern China in January 2013.The impact of regional transport and its implications on pollution prevention and control were also examined.Comparison between simulated and observed PM2.5showed NAQPMS was able to reproduce the evolution of PM2.5during heavy haze episodes.The results indicated that regional transport of PM2.5played an important role in regional haze episodes in the city cluster including Hebei,Beijing and Tianjin(HBT).The cross-city clusters transport outside HBT and transport among cities inside HBT contributed 20%–35%and 26%–35%of PM2.5as compared with local emission,in HBT respectively.To meet the Air Quality Standards for Grade II,90%,90%and65%of emissions would have to be cut down in Hebei,Tianjin and Beijing,if non-control strategy was taken in the surrounding city clusters of HBT.This implicated that control of emissions in one city cluster is not sufficient to reduce regional haze events,and joint efforts among city clusters are essential.Besides regional transports,two-way feedback between boundary-layer evolution and PM2.5also significantly contributed to the formation of heavy hazes,which contributed 30%of monthly average PM2.5concentration in HBT.WANG ZiFa LI Jie WANG Zhe YANG WenYi TANG Xiao GE BaoZhu YAN PinZhong ZHU LiLi CHEN XueShun CHEN HuanSheng WAND Wei LI JianJun LIU Bing WANG XiaoYan WAND Wei ZHAO YiLin LU Ning SU DeBin 2014Science China Earth Sciences2014,57,1:106
2Washed microbiota transplantation vs.manual fecal microbiota transplantation:clinical findings,animal studies and in vitro screening显示文摘Fecal microbiota transplantation(FMT)by manual preparation has been applied to treat diseases for thousands of years.However,this method still endures safety risks and challenges the psychological endurance and acceptance of doctors,patients and donors.Population evidence showed the washed microbiota preparation with microfiltration based on an automatic purification system followed by repeated centrifugation plus suspension for three times significantly reduced FMT-related adverse events.This washing preparation makes delivering a precise dose of the enriched microbiota feasible,instead of using the weight of stool.Intraperitoneal injection in mice with the fecal microbiota supernatant obtained after repeated centrifugation plus suspension for three times induced less toxic reaction than that by the first centrifugation following the microfiltration.The toxic reactions that include death,the change in the level of peripheral white blood cells,and the proliferation of germinal center in secondary lymphoid follicles in spleen were noted.The metagenomic next-generation sequencing(NGS)indicated the increasing types and amount of viruses could be washed out during the washing process.Metabolomics analysis indicated metabolites with pro-inflammatory effects in the fecal microbiota supernatant such as leukotriene B4,corticosterone,and prostaglandin G2 could be removed by repeated washing.Near-infrared absorption spectroscopy could be served as a rapid detection method to control the quality of the washingprocess.In conclusion,this study for the first time provides evidence linking clinical findings and animal experiments to support that washed microbiota transplantation(WMT)is safer,more precise and more quality-controllable than the crude FMT by manual.Ting Zhang Gaochen Lu Zhe Zhao Yafei Liu Quan Shen Pan Li Yaoyao Chen Haoran Yin Huiquan Wang Cicilia Marcella Bota Cui Lei Cheng Guozhong Ji Faming Zhang 2020Protein & Cell2020,11,4:44
3Laser-induced breakdown spectroscopy in China显示文摘导致激光的故障光谱学(解放) 多年由于它象很少或没有样品准备那样的唯一的特征为化学分析被认为是一个未来超级明星,遥感,并且快并且多元素分析。中国解放社区是在世界上的最动态地发展中的社区之一。工作的目的是检查什么为解放开发在中国被做了并且基于全面地位的理解,为未来发展识别挑战和机会。在这份报纸,从中国解放社区的科学贡献为下列四个方面被考察:基础,乐器学,处理并且当模特儿的数据,和应用程序;并且在中国的解放开发的驱动力被分析,为成功的解放申请的关键问题被讨论,并且按照我们的意见,改进技术并且在中国认识到大规模商品化的潜在的方向被建议。Zhe Wang Ting-Bi Yuan Zong-Yu Hou Wei-Dong Zhou Ji-Dong Lu Hong-Bin Ding Xiao-Yan Zeng 2014Frontiers of physics2014,9,4:30
4Risk factors for lymph node metastasis and evaluation of reasonable surgery for early gastric cancer显示文摘AIM: To give the evidence for rationalizing surgical therapy for early gastric cancer with different lymph node status. METHODS: A series of 322 early gastric cancer patients who underwent gastrectomy with more than 15 lymph nodes retrieved were reviewed in this study. The rate of lymph node metastasis was calculated. Univariate and multivariate analyses were performed to evaluate the independent factors for predicting lymph node metastasis. RESULTS: No metastasis was detected in No.5, 6 lymph nodes (LN) during proximal gastric cancer total gastrectomy, and in No.10, 11p, 11d during for combined resection of spleen and splenic artery and in No.15 LN during combined resection of transverse colon mesentery. No.11p, 12a, 14v LN were proved negative for metastasis. The global metastastic rate was 14.6% for LN, 5.9% for mucosa, and 22.4% for submucosa carcinoma, respectively. The metastasis in group Ⅱ?was almost limited in No.7, 8a LN. Multivariate analysis identified that the depth of invasion, histological type and lymphatic invasion were independent risk factors for LN metastasis. No metastasis from distal cancer (≤ 1.0 cm in diameter) was detected in group Ⅱ?LN. The metastasis rate increased significantly when the diameter exceeded 3.0 cm. All tumors (≤ 1.0 cm in diameter) with LN metastasis and mucosa invasion showed a depressed macroscopic type, and all protruded carcinomas were > 3.0 cm in diameter. CONCLUSION: Segmental/subtotal gastrectomy plus D1/D1 + No.7 should be performed for carcinoma (≤ 1.0 cm in diameter, protruded type and mucosa invasion).Subtotal gastrectomy plus D2 or D1 + No.7, 8a, 9 is the most rational operation, whereas No.11p, 12a, 14v lymphadenectomy should not be recommended routinely for poorly differentiated and depressed type of submucosa carcinoma (> 3.0 cm in diameter). Total gastrectomy should not be performed in proximal, so does combined resection or D2+/D3 lymphadenectomy.Ying-Ying Xu Bao-Jun Huang Zhe Sun Chong Lu Yun-Peng Liu 2007World Journal of Gastroenterology2007,13,38:27
5Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential显示文摘Fifteen heavy-duty diesel vehicles were tested on chassis dynamometer by using typical heavy duty driving cycle and fuel economy cycle. The air from the exhaust was sampled by 2,4-dinitrophenyhydrazine cartridge and 23 carbonyl compounds were analyzed by high performance liquid chromatography. The average emission factor of carbonyls was 97.2 mg/km, higher than that of light-duty diesel vehicles and gasoline-powered vehicles. Formaldehyde, acetaldehyde, acetone and propionaldehyde were the species with the highest emission factors. Main influencing factors for carbonyl emissions were vehicle type, average speed and regulated emission standard, and the impact of vehicle loading was not evident in this study. National emission of carbonyls from diesel vehicles exhaust was calculated for China, 2011, based on both vehicle miles traveled and fuel consumption. Carbonyl emission of diesel vehicle was estimated to be 45.8 Gg, and was comparable to gasolinepowered vehicles(58.4 Gg). The emissions of formaldehyde, acetaldehyde and acetone were 12.6, 6.9, 3.8 Gg, respectively. The ozone formation potential of carbonyls from diesel vehicles exhaust was 537 mg O3 /km, higher than 497 mg O3 /km of none-methane hydrocarbons emitted from diesel vehicles.Dong Dong Min Shao Yue Li Sihua Lu Yanjun Wang Zhe Ji Dagang Tang 2014Journal of Environmental Sciences2014,26,1:20
65-Methylcytosine RNA Methylation in Arabidopsis Thaliana显示文摘5-Methylcytosine (m 5 C ) 是描绘得好的 DNA 修正,并且主要也在初核质和优核质在丰富的非编码的 RNA 被报导。然而,分发和 m 5 在植物 mRNAs 的 C 仍然保持大部分未知。这里,我们报导 RNA m 5 在由使用 m 5 C RNA immunoprecipitation 由一条深定序的途径列在后面(m 5 C-RIP-seq ) 。LC-MS/MS 和点污点分析揭示 m 5 在各种各样的纸巾并且在不同发展阶段的 C mRNA 修正。m 5 C-RIP-seq 分析识别了 6045 m 5 在 4465 的 C 山峰在年轻幼苗表示了基因。我们发现那 m 5 C 在编码序列,二座山峰在开始 codons 以后并且在站 codons 前立即定位了被充实,并且随低翻译与 mRNAs 被联系活动。我们进一步表明了那 RNA (cytosine-5 )-methyltransferase,tRNA 特定的 methyltransferase 4B (TRM4B ) ,展览 m 5 C RNA methyltransferase 活动。在 TRM4B 的变化在根开发和减少的 m 5 C 山峰。TRM4B 影响涉及根开发的基因的抄本层次,它断然与他们的 mRNA 稳定性和 m 5 C 层次。我们的结果建议那 m 5 在 mRNA 的 C 是新 epitranscriptome 标记 inArabidopsis,并且这修正的那条规定是基因的不可分的部分规章的网络位于 \O 下面植物开发。Xuean Cui Zhe Liang Lisha Shen Qian Zhang Shengjie Bao Yuke Geng Bin Zhang Vonny Leo Leah A. Vardy Tiegang Lu Xiaofeng Gu Hao Yu 2017Molecular Plant2017,10,11:19
7N6-Methyladenine DNA Methylation in Japonica and Indica Rice Genomes and Its Association with Gene Expression,Plant Development, and Stress Responses显示文摘N6-Methyladenine (6mA)DNA methylation has recently been implicated as a potential new epigenetic marker in eukaryotes,including the dioot modelArabidopsis thaliana.However,the conservation and divergence of 6mA distribution patterns and functions in plants remain elusive.Here we report high-quality 6mA methylomes at single-nucleotide resolution in rice based on substantially improved genome sequences of two rice cultivars,Nipponbare (Nip;Japonica)and 93-11 (Indica).Analysis of 6mA genomic distribution and its association with transcription suggest that 6mA distribution and function is rather conserved between rice and Arabidopsis.We found that 6mA levels are positively correlated with the expression of key stressrelated genes,which may be responsible for the difference in stress tolerance between Nip and 93-11. Moreover,we showed that mutations in DDM1 cause defects in plant growth and decreased 6mA level. Our results reveal that 6mA is a conserved DNA modification that is positively associated with gene expression and contributes to key agronomic traits in plants.Qian Zhang Zhe Liang Xuean Cui Changmian Ji Yun Li Pingxian Zhang Jingrong Liu Adeel Riaz Pu Yao Min Liu Yunpeng Wang Tiegang Lu Hao Yu Donglei Yang Hongkun Zheng Xiaofeng Gu 2018Molecular Plant2018,11,12:18
8Characteristic dysbiosis of gut microbiota of Chinese patients with diarrhea-predominant irritable bowel syndrome by an insight into the pan-microbiome显示文摘Background:Irritable bowel syndrome(IBS)is reported associated with the alteration of gut microbial composition termed as dysbiosis.However,the pathogenic mechanism of IBS remains unclear,while the studies of Chinese individuals are scarce.This study aimed to understand the concept of dysbiosis among patients with Chinese diarrhea-predominant IBS(IBS-D),as a degree of variance between the gut microbiomes of IBS-D population and that of a healthy population.Methods:The patients with IBS-D were recruited(assessed according to the Rome III criteria,by IBS symptom severity score)from the Outpatient Department of Gastroenterology of Peking University Third Hosp让al,and volunteers as healthy controls(HCs)were enrolled,during 2013.The 16S rRNA sequences were extracted from fecal samples.Ribosomal database project resources,basic local alignment search tool,and SparCC software were used to obtain the phylotype composition of samples and the internal interactions of the microbial community.Herein,the non-parametric test,Wilcoxon rank-sum test was carried out to find the statistical significance between HC and IBS-D groups.All the P values were adjusted to q values to decrease the error rate.Results:The study characterized the gut microbiomes of Chinese patients with IBS-D,and demonstrated that the dysbiosis could be characterized as directed alteration of the microbiome composition leading to greater disparity between relative abundance of two phyla,Bacteroidetes(Z=4.77,q=1.59×10^-5)and Firmicutes(Z=-3.87,q=5.83×10^-4).Moreover,it indicated that the IBS symptom features were associated with the dysbiosis of whole gut microbiome,instead of one or several certain genera even they were dominating.Two genera,Bacteroides and Lachnospiracea incertae sedis,were identified as the core genera,meanwhile,the non-core genera contribute to a larger pan-microbiome of the gut microbiome.Furthermore,the dysbiosis in patients with IBS-D was associated with a reduction of network complexity of the interacted microbial community(HC us.IBS-D:639 vs.154).The disordered metabolic functions of patients with IBS-D were identified as the potential influence of gut microbiome on the host(significant difference with q<0.01 between HC and IBS-D).Conclusions:This study supported the view of the potential influence of gut microbiome on the symptom of Chinese patients with IBS-D,and further characterized dysbiosis in Chinese patients with IBS-D,thus provided more pathological evidences for IBS-D with the further understanding of dysbiosis.Zhe Wang Cong-Min Xu Yi-Xuan Liu Xiao-Qi Wang Lu Zhang Mo Li Shi-Wei Zhu Zhong-Jie Xie Pei-Hong Wang Li-Ping Duan Huai-Qiu Zhu 2019Chinese Medical Journal2019,,8:15
9Astragaloside Ⅳ inhibits pathological functions of gastric cancer-associated fibroblasts显示文摘AIM To investigate the inhibitory effect of astragaloside IV on the pathological functions of cancer-associated fibroblasts,and to explore the underlying mechanism.METHODS Paired gastric normal fibroblast(GNF) and gastric cancer-associated fibroblast(GCAF) cultures were established from resected tissues. GCAFs were treated with vehicle control or different concentrations of astragaloside Ⅳ. Conditioned media were prepared from GNFs,GCAFs,control-treated GCAFs,and astragaloside Ⅳ-treated GCAFs,and used to culture BGC-823 human gastric cancer cells. Proliferation,migration and invasion capacities of BGC-823 cells were determined by MTT,wound healing,and Transwell invasion assays,respectively. The action mechanism of astragaloside Ⅳ was investigated by detecting the expression of micro RNAs and the expression and secretion of the oncogenic factor,macrophage colonystimulating factor(M-CSF),and the tumor suppressive factor,tissue inhibitor of metalloproteinase 2(TIMP2),in different groups of GCAFs. The expression of the oncogenic pluripotency factors SOX2 and NANOG in BGC-823 cells cultured with different conditioned media was also examined.RESULTS GCAFs displayed higher capacities to induce BGC-823 cell proliferation,migration,and invasion than GNFs(P < 0.01). Astragaloside Ⅳ treatment strongly inhibited the proliferation-,migration-and invasion-promoting capacities of GCAFs(P < 0.05 for 10 μmol/L,P < 0.01 for 20 μmol/L and 40 μmol/L). Compared with GNFs,GCAFs expressed a lower level of micro RNA-214(P < 0.01) and a higher level of micro RNA-301 a(P < 0.01). Astragaloside Ⅳ treatment significantly upregulated micro RNA-214 expression(P < 0.01) and down-regulated micro RNA-301 a expression(P < 0.01) in GCAFs. Reestablishing the micro RNA expression balance subsequently suppressed M-CSF production(P < 0.01) and secretion(P < 0.05),and elevated TIMP2 production(P < 0.01) and secretion(P < 0.05). Consequently,the ability of GCAFs to increase SOX2 and NANOG expression in BGC-823 cells was abolished by astragaloside Ⅳ.CONCLUSION Astragaloside Ⅳ can inhibit the pathological functions of GCAFs by correcting their dysregulation of micro RNA expression,and it is promisingly a potent therapeutic agent regulating tumor microenvironment.Zhen-Fei Wang Da-Guang Ma Zhe Zhu Yong-Ping Mu Yong-Yan Yang Li Feng Hao Yang Jun-Qing Liang Yong-Yan Liu Li Liu Hai-Wen Lu 2017World Journal of Gastroenterology2017,23,48:15
10High HIV incidence epidemic among men who have sex with men in china: results from a multi-site cross-sectional study显示文摘Background:Recent upsurge of new HIV infections among men who have sex with men(MSM)is a major concern in China.Paucity of national-level information regarding the burden and predictors of this progressive epidemic of new infections called for a multi-centric,timely and comprehensive investigation.Methods:Mixed methods were used to recruit MSM from seven cities in China between 2012 and 2013.Recent and established HIV infections were estimated by Western Blot and BED HIV-1 capture enzyme immunoassay.Syphilis and herpes simplex virus-2(HSV-2)were also tested.Results:A total of 4496 eligible MSM were recruited.The majority was aged≤35 years(77.5%),migrants(60.3%),never married(69.8%),and played receptive role in anal sex(70.5%).The HIV prevalence was 9.9%,and 41.9%were recently infected,with sensitivity/specificity adjusted HIV incidence of 8.9(95%CI:7.6-10.2)/100 Person-Years.The prevalence of history HSV-2 and syphilis were 12.5%and 8.5%,respectively.Recent HIV infection was associated with having multiple male partners(aOR=1.4,95%CI 1.1-1.9),recreational drug use(aOR=2.2,95%CI 1.6-3.0),anal bleeding(aOR=2.1,95%CI 1.4-3.0),syphilis infection(aOR=2.8,95%CI 1.9-4.3)and history HSV-2 infection(aOR=2.3,95%CI 1.5-3.3).Conclusion:High rate of recent HIV infection is potentially resulting in progressive deterioration of the overall HIV epidemic among MSM in China.Targeted interventions to address high-risk MSM including those having multiple partners,history of recreational drug use and syphilis or HSV-2 infection seemed to be the need of the hour.Jun-Jie Xu Wei-Ming Tang Hua-Chun Zou Tanmay Mahapatra Qing-Hai Hu Geng-Feng Fu Zhe Wang Lin Lu Ming-Hua Zhuang Xi Chen Ji-Hua Fu Yan-Qiu Yu Jin-Xin Lu Yong-Jun Jiang Wen-Qing Geng Xiao-Xu Han Hong Shang 2016Infectious Diseases of Poverty2016,5,1:14
11PCA3 and TMPRSS2-ERG gene fusions as diagnostic biomarkers for prostate cancer显示文摘The incidence of prostate cancer(PCa) is rising steadily among males in many countries. Serum prostate-specific antigen(PSA) is widely applied to clinical diagnosis and screening of PCa. However, the so-called grey area of PSA levels 4.0–10.0 ng/m L has a low specificity of 25–40% resulting in a high rate of negative biopsy and overtreatment. So in order to treat PCa patients in early stage, there is an urgent need for new biomarkers in PCa diagnosis. The PCA3 gene, a non-coding RNA(nc RNA) that is highly expressed in prostate cancer(PCa) cells, has been identified as a molecular biomarkers to detect PCa, of which PCA3 has already under clinical application. PCA3 is strongly overexpressed in malignant prostate tissue compared to benign or normal adjacent one. Newly, PCA3 is considered to be a promising biomarker in clinical diagnosis and targeted therapy. The diagnostic significance of PCA3, however, is awaiting further researches. Moreover, it has been demonstrated recently that TMPRSS2-ERG gene fusion is identified as the predominant genetic change in patients diagnosed with PCa. Recent study revealed that combination of the PCA3 and TMPRSS2-ERG gene fusion test optimizes PCa detection compared with that of single biomarker, which would lead to a considerable reduction of the number of prostate biopsies. In this review, we focused on the potential use of PCA3 and TMPRSS2-ERG gene fusion detection in the diagnosis of PCa.Zheng Yang Lu Yu Zhe Wang 2016Chinese Journal of Cancer Research2016,28,1:13
12Effect of human umbilical cord-derived mesenchymal stem cells on lung damage in severe COVID-19 patients:a randomized,double-blind,placebo-controlled phase 2 trial显示文摘Treatment of severe Coronavirus Disease 2019(COVID-19)is challenging.We performed a phase 2 trial to assess the efficacy andsafety of human umbilical cord-mesenchymal stem cells(UC-MScs)to treat severe coViD-19 patients with lung damage,based onour phase 1 data.In this randomized,double-blind,and placebo-controlled trial,we recruited 101 severe coVID-19 patients withlung damage.They were randomly assigned at a 2:1 ratio to receive either UC-MSCs(4×10^(7)cells per infusion)or placebo on day 0,3,and 6.The primary endpoint was an altered proportion of whole lung lesion volumes from baseline to day 28.Other imagingoutcomes,6-minute walk test(6-MWT),maximum vital capacity,diffusing capacity,and adverse events were recorded and analyzed.In all,100 COVID-19 patients were finally received either UC-MSCs in=65)or placebo(n=35).UC-MSCs administrationexerted numerical improvement in whole lung lesion volume from baseline to day 28 compared with the placebo(the mediandifference was-13.31%,95%Cl-29.14%,2.13%,P=0.08).UC-MSCs significanty reduced the proportions of solid componentlesion volume compared with the placebo(median difference:-15.45%;95%CI-30.82%,-0.39%;P=0.043).The 6-MWT showedan increased distance in patients treated with UC-MSCs(difference:27.00 m;95%CI 0.00,57.00;P=0.057).The incidence of adverseevents was similar in the two groups.These results suggest that UC-MSCs treatment is a safe and potentially effective therapeuticapproach for COVID-19 patients with lung damage.A phase 3 trial is required to evaluate effects on reducing mortality andpreventing long-term pulmonary disability.Lei Shi Hai Huang Xuechun Lu Xiaoyan Yan Xiaojing Jiang Ruonan Xu Siyu Wang Chao Zhang Xin Yuan Zhe Xu Lei Huang Jun-Liang Fu Yuanyuan Li Yu Zhang Wei-Qi Yao Tianyi Liu Jinwen Song Liangliang Sun Fan Yang Xin Zhang Bo Zhang Ming Shi Fanping Meng Yanning Song Yongpei Yu Jiqiu Wen Qi Li Qing Mao Markus Maeurer Alimuddin Zumla Chen Yao Wei-Fen Xie Fu-Sheng Wang 2021Signal Transduction and Targeted Therapy2021,6,3:13
13MiR-122-5p suppresses the proliferation, migration, and invasion of gastric cancer cells by targeting LYN显示文摘Gastric cancer(GC)is one of malignant tumors with high mortality and morbidity in the world.MicroRNA-122(miR-122)acts as a tumor suppressor in a variety of cancers and has been found to be dominant in gastric adenocarcinoma.However,the specific biological function of miR-122-5p in GC is not completely clear.In this study,we found that miR-122-5p was low-expressed in GC tissues and cell lines by using qRT-PCR.Overexpression of miR-122-5p inhibited the proliferation,migration,and invasion of GC cells by using CCK-8 and transwell assays.On the contrary,downregulation of miR-122-5p promoted the proliferation,migration,and invasion of GC cells.In addition,we found that the expression of LYN,an Src family tyrosine kinase,was inversely correlated with miR-122-5p expression in GC tissues by using western blot analysis,immunohistochemistry,and qRT-PCR assays.Meanwhile,luciferase assay results indicated that LYN is a direct target of miR-122-5p in GC cells.Moreover,silencing LYN expression by its siRNA inhibited the proliferation,migration,and invasion of GC cells.Importantly,overexpression of LYN restored miR-122-5p-mediated inhibition of the proliferation,migration,and invasion of GC cells.Taken together,our results indicated miR-122-5p inhibited the proliferation,migration,and invasion by targeting LYN in GC.Lei Meng Zhangming Chen Zhe Jiang Ting Huang Jie Hu Panquan Luo Hongli Zhang Mengqi Huang Lei Huang Yu Chen Ming Lu A-man Xu Songcheng Ying 2020Acta Biochimica et Biophysica Sinica2020,52,1:12
14Neddylation of PTEN regulates its nuclear import and promotes tumor development显示文摘PTEN tumor suppressor opposes the PI3K/Akt signaling pathway in the cytoplasm and maintains chromosomal integrity in the nucleus.Nucleus–cytoplasm shuttling of PTEN is regulated by ubiquitylation,SUMOylation and phosphorylation,and nuclear PTEN has been proposed to exhibit tumor-suppressive functions.Here we show that PTEN is conjugated by Nedd8 under high glucose conditions,which induces PTEN nuclear import without effects on PTEN stability.PTEN neddylation is promoted by the XIAP ligase and removed by the NEDP1 deneddylase.We identify Lys197 and Lys402 as major neddylation sites on PTEN.Neddylated PTEN accumulates predominantly in the nucleus and promotes rather than suppresses cell proliferation and metabolism.The nuclear neddylated PTEN dephosphorylates the fatty acid synthase(FASN)protein,inhibits the TRIM21-mediated ubiquitylation and degradation of FASN,and then promotes de novo fatty acid synthesis.In human breast cancer tissues,neddylated PTEN correlates with tumor progression and poor prognosis.Therefore,we demonstrate a previously unidentified pool of nuclear PTEN in the Nedd8-conjugated form and an unexpected tumor-promoting role of neddylated PTEN.Ping Xie Zhiqiang Peng Yujiao Chen Hongchang Li Mengge Du Yawen Tan Xin Zhang Zhe Lu Chun-Ping Cui Cui Hua Liu Fuchu He Lingqiang Zhang 2021Cell Research2021,31,3:11
15Endovascular treatment with or without intravenous alteplase for acute ischaemic stroke due to basilar artery occlusion显示文摘Background and purpose It remains controversial if endovascular treatment(EVT)can improve the outcome of patients with acute basilar artery occlusion(BAO).This study aims to compare the functional outcomes between EVT with and without intravenous thrombolysis(IVT)first in patients who had acute ischaemic stroke(AIS)due to BAO.Methods Patients who had AIS with BAO who underwent EVT within 24 hours of onset were enrolled in this multicentre cohort study,and the efficacy and safety were compared between IVT+EVT and direct EVT.The primary outcome was 90-day functional independence.All outcomes were assessed with adjusted OR(aOR)from the multivariable logistic regression.In addition,a meta-analysis was performed on all recently published pivotal studies on functional independence after EVT in patients with BAO.Results Of 310 enrolled patients with BAO,241(78%)were treated with direct EVT and 69(22%)with IVT+EVT.Direct EVT was associated with a worse functional outcome(aOR,0.46(95%CI 0.24 to 0.85),p=0.01).IVT+EVT was associated with a lower percentage of patients who needed≥3 passes of stent retriever(10.14%vs 20.75%).The meta-analysis regression revealed a potential positive correlation between bridging with IVT first and functional independence(r=0.14(95%CI 0.05 to 0.24),p<0.01).Conclusions This study showed that compared with direct EVT,EVT with IVT first was associated with better functional outcomes in patients with BAO treated within 24 hours of onset.The meta-analysis demonstrated similar favourable efficacy of IVT first followed by EVT in patients with BAO.Ximing Nie David Wang Yuehua Pu Yufei Wei Qixuan Lu Hongyi Yan Xin Liu Lina Zheng Jingyi Liu Xinxuan Yang Yarong Ding Dacheng Liu Wanying Duan Zhe Zhang Zhonghua Yang Miao Wen Weibin Gu Xinyi Hou Xinyi Leng Yuesong Pan Zhongrong Miao Liping Liu 2022Stroke & Vascular Neurology2022,7,3:10
16Effectiveness of Jinying capsule on pelvic inflammatory disease in patients with symptom pattern of damp and heat accumulation: a double-blinded, multicenter, randomized, placebo-controlled clinical trial显示文摘OBJECTIVE: To evaluate the therapeutic effectiveness and safety of Jinying capsule on pelvic inflammatory disease(PID) in patients with symptoms identified as the pattern of damp and heat accumulation in terms of Traditional Chinese Medicine(TCM).METHODS: We conducted a double-blinded, multicenter, randomized, placebo-controlled clinical trial which included 155 patients diagnosed with PID and identified as symptom pattern of damp and heat accumulation. They were randomly divided into experimental group(n = 78) and control group(n = 77) according to a random number table. The treatment lasted for a period of 28 d. The experimental group was given Jinying capsules and oral levofloxacin plus oral metronidazole for first 7 d.They continued with Jinying capsules and levofloxacin placebo and metronidazole placebo for another 7 d. For the remaining 14 d, they continued with Jinying capsules only. Whereas, the control group was treated with oral levofloxacin and metronidazole and Jinying capsule placebo for the first 14 d in the same way as the experimental group and then continued with Jinying capsule placebo only for the remaining 14 d. The clinical efficacy was assessed using McCormack scale, TCM symptom pattern scores, physicochemical indexes including white blood cell and erythrocyte sedimentation rate, C-reaction protein, smear of vaginal discharge,and pelvic ultrasound.RESULTS: Comparing McCormack scale between both groups after treatment, the difference in curative effect between both groups was significant (P = 0.0269). The cure rate of the experimental group and control group is 76.32% and 59.46% respectively at week 4. Comparing TCM symptom pattern scores between both groups before and after treatment, the differences in total effective rate were both significant(P < 0.05). The curative effect rate of experimental group is 2.63% and 13.70% of the control group at week 1(P = 0.0131), and73.33% of the experimental group and 56.94% of the control group at week 4(P = 0.0369). No significant differences were found between the two groups on the Physicochemical indexes(all P >0.05). No adverse events or reactions occurred in the experimental groups.CONCLUSION: Jinying capsule can reduce the dosage of antibiotics needed for PID treatment, and improve the symptoms in PID patients.Yang Yan Lu Yao Zhou Deping Pei Fenglan Li Qin Chen Shuqiong Wang Qiufeng Wang Yanting Jin Zhe Liu Yanxia 2020Journal of Traditional Chinese Medicine2020,40,3:10
17含垂直裂纹的厚热障涂层的热稳定性及力学性能(英文)显示文摘采用循环热暴露及热震试验研究含或不含垂直裂纹的厚热障涂层的热稳定性和失效机制。先采用空气等离子喷涂技术在基体表面制备150μm厚的连接涂层,再在该涂层上采用空气等离子喷涂技术制备2000μm厚的热障涂层。含或不含垂直裂纹的热障涂层的粘附强度分别为24.7和11.0 MPa,表明含垂直裂纹的热障涂层的界面稳定性更高。循环热暴露及热震试验表明其热稳定性更高。含或不含垂直裂纹的热障涂层的硬度分别为6.6和5.3GPa,经循环热暴露试验后分别升高至9.5和5.5 GPa。实验表明上层涂层中垂直裂纹的存在有利于延长热障涂层高温环境的寿命。Zhe LU Min-Sik KIM Sang-Won MYOUNG Je-Hyun LEE Yeon-Gil JUNG In-Soo KIM Chang-Yong JO 2014Transactions of Nonferrous Metals Society of China2014,24,S1:9
18Hard X-ray Imager (HXI) onboard the ASO-S mission显示文摘Hard X-ray Imager(HXI)is one of the three scientific instruments onboard the Advanced Spacebased Solar Observatory(ASO-S)mission,which is proposed for the 25th solar maximum by the Chinese solar community.HXI is designed to investigate the non-thermal high-energy electrons accelerated in solar flares by providing images of solar flaring regions in the energy range from 30 keV to 200 keV.The imaging principle of HXI is based on spatially modulated Fourier synthesis and utilizes about 91 sets of bi-grid sub-collimators and corresponding LaBr3 detectors to obtain Fourier components with a spatial resolution of about 3 arcsec and a time resolution better than 0.5 s.An engineering prototype has been developed and tested to verify the feasibility of design.In this paper,we present background,instrument design and the development and test status of the prototype.Zhe Zhang Deng-Yi Chen Jian Wu Jin Chang Yi-Ming Hu Yang Su Yan Zhang Jian-Ping Wang Yao-Ming Liang Tao Ma Jian-Hua Guo Ming-Sheng Cai Yong-Qiang Zhang Yong-Yi Huang Xiao-Yan Peng Zong-Bin Tang Xuan Zhao Hong-He Zhou Lian-Guo Wang Jing-Xing Song Miao Ma Guang-Zhou Xu Jian-Feng Yang Di Lu Ying-Hong He Jin-You Tao Xiao-Long Ma Bao-Gang Lv Yan-Ping Bai Cai-Xia Cao Yu Huang Wei-Qun Gan 2019Research in Astronomy and Astrophysics2019,19,11:9
19CD147-spike protein is a novel route for SARS-CoV-2 infection to host cells显示文摘In face of the everlasting battle toward COVID-19 and the rapid evolution of SARS-CoV-2,no specific and effective drugs for treating this disease have been reported until today.Angiotensin-converting enzyme 2(ACE2),a receptor of SARS-CoV-2,mediates the virus infection by binding to spike protein.Although ACE2 is expressed in the lung,kidney,and intestine,its expressing levels are rather low,especially in the lung.Considering the great infectivity of COVID-19,we speculate that SARS-CoV-2 may depend on other routes to facilitate its infection.Here,we first discover an interaction between host cell receptor CD147 and SARS-CoV-2 spike protein.The loss of CD147 or blocking CD147 in Vero E6 and BEAS-2B cell lines by anti-CD147 antibody,Meplazumab,inhibits SARSCoV-2 amplification.Expression of human CD147 allows virus entry into non-susceptible BHK-21 cells,which can be neutralized by CD147 extracellular fragment.Viral loads are detectable in the lungs of human CD147(hCD147)mice infected with SARS-CoV-2,but not in those of virus-infected wild type mice.Interestingly,virions are observed in lymphocytes of lung tissue from a COVID-19 patient.Human T cells with a property of ACE2 natural deficiency can be infected with SARS-CoV-2 pseudovirus in a dosedependent manner,which is specifically inhibited by Meplazumab.Furthermore,CD147 mediates virus entering host cells by endocytosis.Together,our study reveals a novel virus entry route,CD147-spike protein,which provides an important target for developing specific and effective drug against COVID-19.Ke Wang Wei Chen Zheng Zhang Yongqiang Deng Jian-Qi Lian Peng Du Ding Wei Yang Zhang Xiu-Xuan Sun Li Gong Xu Yang Lei He Lei Zhang Zhiwei Yang Jie-Jie Geng Ruo Chen Hai Zhang Bin Wang Yu-Meng Zhu Gang Nan Jian-Li Jiang Ling Li Jiao Wu Peng Lin Wan Huang Liangzhi Xie Zhao-Hui Zheng Kui Zhang Jin-Lin Miao Hong-Yong Cui Min Huang Jun Zhang Ling Fu Xiang-Min Yang Zhongpeng Zhao Shihui Sun Hongjing Gu Zhe Wang Chun-Fu Wang Yacheng Lu Ying-Ying Liu Qing-Yi Wang Huijie Bian Ping Zhu Zhi-Nan Chen 2020Signal Transduction and Targeted Therapy2020,5,1:9
20Continuity for Maximal Multilinear Bochner-Riesz Operators on Hardy and Herz Hardy Spaces显示文摘让 maxiamal multilinear Bochner 鈥揜i esz 操作员被 Bochner 鈥 ? Riesz 操作员和 D 伪 A 鈭 ? 嘴唇尾(| 伪产生|=m) 。一些哈迪和 Herz 类型哈迪上的操作员的连续性被获得。关键词 Bochner 鈥揜i esz 操作员 - Multilinear 操作员 - 强壮的空间 - Herz 空间 - Lipschitz 空间先生(2000 ) 题目分类 42B20 - 42B25 由公民 973 工程(19990751 ) 和 NNSF 支持了(资助:号码 10271071 )Lan Zhe LIU Shan Zhen LU 2006Acta Mathematica Sinica,English Series2006,22,1:8
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