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803篇 您的检索式:作者名="Rui Lu"
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1Biochemical characteristics of neonatal cholestasis induced by citrin deficiency显示文摘AIM:To explore differences in biochemical indices between neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) and that with other etiologies. METHODS:Patients under 6 mo of age who were referred for investigation of conjugated hyperbiliru-binaemia from June 2003 to December 2010 were eligible for this study. After excluding diseases affecting the extrahepatic biliary system, all patients were screened for the two most common SLC25A13 mutations; the coding exons of the entire SLC25A13 gene was sequenced and Western blotting of citrin protein performed in selected cases. Patients in whom homo-zygous or compound heterozygous SLC25A13 mutation and/or absence of normal citrin protein was detected were defined as having NICCD. Cases in which no specific etiological factor could be ascertained after a com-prehensive conjugated hyperbilirubinaemia work-up were defined as idiopathic neonatal cholestasis (INC). Thirty-two NICCD patients, 250 INC patients, and 39 infants with cholangiography-confirmed biliary atresia (BA) were enrolled. Laboratory values at their first visit were abstracted from medical files and compared. RESULTS:Compared with BA and INC patients, the NICCD patients had significantly higher levels of total bile acid (TBA) [all measures are expressed as median (inter-quartile range):178.0 (111.2-236.4) μmol/L in NICCD vs 112.0 (84.9-153.9) μmol/L in BA and 103.0 (70.9-135.3) μmol/L in INC, P = 0.0001]. The NICCD patients had significantly lower direct bilirubin [D-Bil 59.6 (43.1-90.9) μmol/L in NICCD vs 134.0 (115.9-151.2) μmol/L in BA and 87.3 (63.0-123.6) μmol/L in INC, P = 0.0001]; alanine aminotransferase [ALT 34.0 (23.0-55.0) U/L in NICCD vs 108.0 (62.0-199.0) U/L in BA and 84.5 (46.0-166.0) U/L in INC, P = 0.0001]; aspartate aminotransferase [AST 74.0 (53.5-150.0) U/L in NICCD vs 153.0 (115.0-239.0) U/L in BA and 130.5 (81.0-223.0) U/L in INC, P = 0.0006]; albumin [34.9 (30.7-38.2) g/L in NICCD vs 38.4 (36.3-42.2) g/L in BA and 39.9 (37.0-42.3) g/L in INC, P = 0.0001]; glucose [3.2 (2.0-4.4) mmol/L in NICCD vs 4.1 (3.4-5.1) mmol/L in BA and 4.0 (3.4-4.6) mmol/L in INC, P = 0.0014] and total cholesterol [TCH 3.33 (2.97-4.00) mmol/L in N ICCD vs 4.57 (3.81-5.26) mmol/L in BA and 4.00 (3.24-4.74) mmol/L in INC, P = 0.0155] levels. The D-Bil to total bilirubin (T-Bil) ratio was significantly lower in NICCD patients [all measures are expressed as median (inter-quartile range):0.54 (0.40-0.74)] than that in BA patients [0.77 (0.72-0.81), P = 0.001] and that in INC patients [0.74 (0.59-0.80), P = 0.0045]. A much higher AST/ALT ratio was found in NICCD patients [2.46 (1.95-3.63)] compared to BA patients [1.38 (0.94-1.97), P = 0.0001] and INC patients [1.48 (1.10-2.26), P = 0.0001]. NICCD patients had significantly higher TBA/D-Bil ratio [3.36 (1.98-4.43) vs 0.85 (0.72-1.09) in BA patients and 1.04 (0.92-1.14) in INC patients, P = 0.0001], and TBA/TCH ratio [60.7 (32.4-70.9) vs 24.7 (19.8-30.2) in BA patients and 24.2 (21.4-26.9) in INC patients, P = 0.0001] compared to the BA and INC groups. CONCLUSION:NICCD has significantly different bio- chemical indices from BA or INC. TBA excretion in NICCD appeared to be more severely disturbed than that of bilirubin and cholesterol.Jian-She Wang Xiao-Hong Wang Ying-Jie Zheng Hai-Yan Fu Rui Chen Yi Lu Ling-Juan Fang Takeyori Saheki Keiko Kobayashi 2012World Journal of Gastroenterology2012,18,39:35
2Regulatory B cells in autoimmune diseases显示文摘因为他们的能力, B 房间通常被认为是有免疫力的反应的积极管理者生产抗体,包括自身抗体。因为 B 房间用作介绍抗原的房间并且在有免疫力的回答施加另外的调节功能,抗体的生产便于最佳的 CD4 +T 房间激活。然而,某些 B 房间能否定地也由生产规章的 cytokines 并且直接经由 cell-to-cell 接触与病原的 T 房间交往调整有免疫力的反应。B 房间的这些类型被定义为规章的 B (Breg ) 房间。Breg 房间的规章的函数在发炎的鼠标模型被表明了,癌症,移植,并且特别地在 autoimmunity。在这评论,我们集中于在人的自体免疫的疾病导致发展的理解和 Breg 房间的功能和 B 房间的含意的最近的进展。Min Yang Ke Rui Shengjun Wang Liwei Lu 2013Cellular & Molecular Immunology2013,10,2:32
3Deep seismic reflection profile across the juncture zone between the Tarim Basin and the West Kunlun Mountains显示文摘Fine structures of the crust and upper mantle of the basin-and-range juncture on the northwestern margin of the Qinghai-Tibetan Plateau are first delineated by the deep seismic reflection profile across the juncture zone between the Tarim Basin and the West Kunlun Mountains. Evidence is found for the northward subduction of the northwest marginal lithosphere of the Qinghai-Tibetan Plateau and its collision with Tarim lithosphere beneath the West Kunlun Mountains. The lithosphere image of the face-to-face subduction and collision determines the coupling relationship between the Tarim Basin and the West Kunlun Mountains at the lithosphere scale and reflects the process of continent- continent collision.GAO Rui HUANG Dongding LU Deyuan QIAN Guihua LI Yingkang KUANG Chaoyang Li Qiusheng LI Pengwu Feng Rujin Guan Ye 2000Chinese Science Bulletin2000,45,24:30
4Geophysical survey and geodynamic study of crust and upper mantle in the Qinghai-Tibet Plateau显示文摘Rui Gao Zhanwu Lu Qiusheng Li Ye Guan Jisheng Zhang Rizheng He Liyan Huang 2005Episodes2005,28,4:26
5Paleoproterozoic reworking of ancient crust in the Cathaysia Block,South China:Evidence from zircon trace elements,U-Pb and Lu-Hf isotopes显示文摘A combined study of zircon LA-ICP-MS U-Pb dating, trace elements and Hf isotope was carried out for gneissic granite from the Sanzhishu area in Jingning, SW Zhejiang Province. Nearly all the zircons separated from the granite exhibited oscillatory zoning and high Th/U ratios (>0.1). The REE profile showed a pronounced positive Ce anomaly, negative Eu anomaly and an enrichment of HREE, which are typical characteristics of magmatic zircon. Thirteen concordant or nearly concordant analytical data yielded a weighted mean 207Pb/206Pb age of 1860±13 Ma (MSWD=0.084), representing the formation age of the granite. The magmatic zircons had negative εHf(t) values of -15.6 to -10.0 and two-stage Hf model ages of 3.1 to 3.4 Ga, indicating that the granites were formed by reworking of ancient crust. The major- and trace-element data indicate that the gneissic granites are metaluminous high-K calc-alkaline rocks and exhibit the same geochemical characteristics as aluminous A-type granites, implying the emplacement of the granite in a post-orogenic extensional tectonic setting. We conclude that the Pa-leoproterozoic crustal reworking event in the Cathaysia Block of South China marked the transition from assembly to break-up of the Columbia supercontinent.LIU Rui ZHOU Han Wen ZHANG Li ZHONG ZengQiu ZENG Wen XIANG Hua JIN Song LU Xin Qian LI ChunZhong 2009Chinese Science Bulletin2009,54,9:22
6Size distribution of chemical elements and their source apportionment in ambient coarse, fine, and ultrafine particles in Shanghai urban summer atmosphere显示文摘Ambient coarse particles (diameter 1.8-10 μm), fine particles (diameter 0.1-1.8 μm), and ultrafine particles (diameter < 0.1 μm) in the atmosphere of the city of Shanghai were sampled during the summer of 2008 (from Aug 27 to Sep 08). Microscopic characterization of the particles was investigated by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDX). Mass concentrations of Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Rb, Sr, and Pb in the size-resolved particles were quantified by using synchrotron radiation X-ray fluorescence (SRXRF). Source apportionment of the chemical elements was analyzed by means of an enrichment factor method. Our results showed that the average mass concentrations of coarse particles, fine particles and ultrafine particles in the summer air were 9.38 ± 2.18, 8.82 ± 3.52, and 2.02 ± 0.41 μg/m3, respectively. The mass percentage of the fine particles accounted for 51.47% in the total mass of PM10, indicating that fine particles are the major component in the Shanghai ambient particles. SEM/EDX results showed that the coarse particles were dominated by minerals, fine particles by soot aggregates and fly ashes, and ultrafine particles by soot particles and unidentified particles. SRXRF results demonstrated that crustal elements were mainly distributed in the coarse particles, while heavy metals were in higher proportions in the fine particles. Source apportionment revealed that Si, K, Ca, Fe, Mn, Rb, and Sr were from crustal sources, and S, Cl, Cu, Zn, As, Se, Br, and Pb from anthropogenic sources. Levels of P, V, Cr, and Ni in particles might be contributed from multi-sources, and need further investigation.Senlin Lu Rui Zhang Zhenkun Yao Fei Yi Jingjing Ren Minghong Wu Man Feng Qingyue Wang 2012Journal of Environmental Sciences2012,24,5:22
7Somatosensory neuron types identified by high-coverage single-cell RNA-sequencing and functional heterogeneity显示文摘感觉神经原被不同发信号的网络和接受特征区分。因此,感觉神经原类型能被连接基于 transcriptome 的神经原与感觉显型打字定义。这里,我们分类老鼠的 somatosensory 神经原由高范围的单个房间的定序 RNA 的背面的根中心(DRG )(10 950 ±1 218 基因每神经原) 并且神经原基于尺寸的层次聚类。而且,对皮肤的刺激作出回应的单个 DRG 神经原被记录用一在里面 vivo 整个房间的补丁夹钳技术并且由神经原类型分类基因标记。小直径 DRG 神经原被分类进低阀值的 mechanoreceptor 的一种类型和 mechanoheat nociceptors (MHN ) 的五种类型。每 MHN 类型进一步被分成二种子类型。大 DRG 神经原被分成四种类型,包括表示联系 BAI1 的蛋白质 2-like 的 neurexophilin 1 快车 MHN 和机械 nociceptors (MN ) 1 (Baiap2l1 ) 。表示 trafficking 蛋白质粒子建筑群 3-like 和 Baiap2l1 显著的 MN 的 Mechanoreceptors 各被细分进二种子类型。这些结果为编目 somatosensory 神经原和他们的 transcriptome 数据库提供一个新系统。Chang-Lin Li Kai-Cheng Li Dan Wu Yan Chen Hao Luo Jing-Rong Zhao Sa-Shuang Wang Ming-Ming Sun Ying-Jin Lu Yan-Qing Zhong Xu-Ye Hu Rui Hou Bei-Bei Zhou Lan Bao Hua-Sheng Xiao Xu Zhang 2016Cell Research2016,26,1:21
8Caledonian reworking of Paleoproterozoic basement in the Cathaysia Block: Constraints from zircon U-Pb dating, Hf isotopes and trace elements显示文摘A combined study of zircon U-Pb dating, Hf isotopes and trace elements has been carried out for granodioritic neosomes of migmatites from the Tianjingping area in northwestern Fujian Province. Zircons are characterized by zoning, higher Th/U ratios (mostly ≥0.1), HREE enrichment, and positive Ce and negative Eu anomalies, and show features similar to magmatic or anatectic zircons. Apparent 206Pb/238U ages for the zircons are 447±2 Ma (95% conf., MSWD = 0.88), corresponding to a Caledonian event. εHf(t) values are ?13.3 to ?9.7, indicating a crustal source. Two-stage Hf model ages are 1.7 to 1.9 Ga, suggesting that protolith of the migmates was probably formed in the Paleoproterozoic. The granodioritic neosomes have the characteristics of peraluminous calc-alkaline granite, and their REE patterns and trace elements spidergrams show features of middle to upper crustal rocks. Together with previous studies, we conclude that the protolith of the Cathaysia basement in the Tianjingping area was likely formed in the middle-late Paleoproterozoic and experienced partial melting during the Caledonian period. The recognition of Caledonian reworking of the Paleoproterozoic basement in the Cathaysia Block provides a new insight into the tectonic evolution of the Cathaysia Block in the Caledonian pe- riod and the interaction between the Cathaysia Block and the Yangtze Block.ZENG Wen ZHANG Li ZHOU HanWen ZHONG ZengQiu XIANG Hua LIU Rui JIN Song LU XinQian LI ChunZhong 2008Chinese Science Bulletin2008,53,6:21
9Serum sclerostin levels associated with lumbar spine bone mineral density and bone turnover markers in patients with postmenopausal osteoporosis显示文摘XU Xiao-juan SHEN Lin YANG Yan-ping LU Fu-rong ZHU Rui SHUAI Bo LI Cheng-gang WU Man-xiang 2013Chinese Medical Journal2013,,13:20
10The ChinaMAP analytics of deep whole genome sequences in 10,588 individuals显示文摘Metabolic diseases are the most common and rapidly growing health issues worldwide.The massive population-based human genetics is crucial for the precise prevention and intervention of metabolic disorders.The China Metabolic Analytics Project(ChinaMAP)is based on cohort studies across diverse regions and ethnic groups with metabolic phenotypic data in China.Here,we describe the centralized analysis of the deep whole genome sequencing data and the genetic bases of metabolic traits in 10,588 individuals from the ChinaMAP.The frequency spectrum of variants,population structure,pathogenic variants and novel genomic characteristics were analyzed.The individual genetic evaluations of Mendelian diseases,nutrition and drug metabolism,and traits of blood glucose and BMI were integrated.Our study establishes a large-scale and deep resource for the genetics of East Asians and provides opportunities for novel genetic discoveries of metabolic characteristics and disorders.Yanan Cao Lin Li Min Xu Zhimin Feng Xiaohui Sun Jieli Lu Yu Xu Peina Du Tiange Wang Ruying Hu Zhen Ye Lixin Shi Xulei Tang Li Yan Zhengnan Gao Gang Chen Yinfei Zhang Lulu Chen Guang Ning Yufang Bi Weiqing Wang The ChinaMAP Consortium 2020Cell Research2020,30,9:20
11Effects of Tongxinluo-facilitated cellular cardiomyoplasty with autologous bone marrow-mesenchymal stem cells on postinfarct swine hearts显示文摘<正> Background Treatment of ischemic heart disease remains an important challenge,though there have been enormousprogresses in cardiovascular therapeutics.This study was conducted to evaluate whether Tongxinluo(TXL)treatmentaround the transplantation of mesenchymal stem cells(MSCs)can improve survival and subsequent activities ofimplanted cells in swine hearts with acute myocardial infarction(AMI)and reperfusion.Methods Twenty-eight Chinese mini-pigs were divided into four groups including a control group(n=7);group 2,administration of low-dose TXL alone from the 3rd day prior to AMI to the 4th day post transplantation(n=7);group 3,MSCs alone(n=7)and group 4,TXL+MSCs(n=7).AMI models were made by occlusion of the left anterior descendingcoronary artery for 90 minutes.Autologous bone marrow-MSCs(3×10~7 cells/animal)were then injected into thepost-infarct myocardium immediately after AMI and reperfusion.The survival and differentiation of implanted cells in vivowere detected by immunofluorescent analysis.The data of cardiac function were obtained at baseline(1 week aftertransplantation)and endpoint(6 weeks after transplantation)by single photon emission computed tomography(SPECT)and magnetic resonance imaging(MRI).Apoptosis was detected by TUNEL assay and the oxidative stress level wasinvestigated in the post-infarct myocardium at endpoint.Results At endpoint,there was less fibrosis and inflammatory cell infiltration with more surviving myocardium in group 4than in the control group.In group 4 the survival and differentiation of implanted MSCs were significantly improved morethan that seen in group 3 alone(P<0.0001);the capillary density was also significantly greater than in the control group,group 2 or 3 both in the infarcted zone(P<0.0001)and the peri-infarct zone(P<0.0001).MRI showed that parameters atbaseline were not significantly different between the 4 groups.At endpoint,regional wall thickening and the left ventricularejection fraction were increased while the left ventricular mass index,dyskinetic segments and infarcted size weredecreased only in group 4 compared with control group(P<0.0001).SPECT showed that the area of perfusion defectwas significantly decreased at endpoint only in group 4 compared with control group(P<0.0001).TUNEL assay indicatedthat TXL administration significantly decreased cell apoptosis in peri-infarct myocardium in groups 2 and 4.Furthermore,superoxide dismutase(SOD)significantly increased and malondialdehyde(MDA)decreased in groups 2 and 4 by theadministration of TXL.Conclusions Our study demonstrates the following:(1)immediate intramyocardial injection of MSCs after AMI andreperfusion resulted in limited survival and differentiation potential of implanted cells in vivo,thus being incapable ofbeneficially affecting post-hearts;(2)TXL-facilitation resulted in a significant survival and differentiation potential ofimplanted cells in vivo via inhibition of apoptosis and oxidative stress,accompanied by significant benefits in cardiacfunction.Chin Med J 2007;120(16)QIAN Hai-yan YANG Yue-jin HUANG Ji GAO Run-lin DOU Ke-fei YANG Guo-sheng LI Jian-jun SHEN Rui HE Zuo-xiang LU Min-jie ZHAO Shi-hua 2007Chinese Medical Journal2007,,16:19
12Status of glycosylated hemoglobin and prediction of glycemic control among patients with insulin-treated type 2 diabetes in North China:a multicenter observational study显示文摘Background:Blood glucose control is closely related to type 2 diabetes mellitus(T2DM)prognosis.This multicenter study aimed to investigate blood glucose control among patients with insulin-treated T2DM in North China and explore the application value of combining an elastic network(EN)with a machine-learning algorithm to predict glycemic control.Methods:Basic information,biochemical indices,and diabetes-related data were collected via questionnaire from 2787 consecutive participants recruited from 27 centers in six cities between January 2016 and December 2017.An EN regression was used to address variable collinearity.Then,three common machine learning algorithms(random forest[RF],support vector machine[SVM],and back propagation artificial neural network[BP-ANN])were used to simulate and predict blood glucose status.Additionally,a stepwise logistic regression was performed to compare the machine learning models.Results:The well-controlled blood glucose rate was 45.82%in North China.The multivariable analysis found that hypertension history,atherosclerotic cardiovascular disease history,exercise,and total cholesterol were protective factors in glycosylated hemoglobin(HbAlc)control,while central adiposity,family history,T2DM duration,complications,insulin dose,blood pressure,and hypertension were risk factors for elevated HbAlc.Before the dimensional reduction in the EN,the areas under the curve of RF,SVM,and BP were 0.73,0.61,and 0.70,respectively,while these figures increased to 0.75,0.72,and 0.72,respectively,after dimensional reduction.Moreover,the EN and machine learning models had higher sensitivity and accuracy than the logistic regression models(the sensitivity and accuracy of logistic were 0.52 and 0.56;RF:0.79,0.70;SVM:0.84,0.73;BP-ANN:0.78,0.73,respectively).Conclusions:More than half of T2DM patients in North China had poor glycemic control and were at a higher risk of developing diabetic complications.The EN and machine learning algorithms are alternative choices,in addition to the traditional logistic model,for building predictive models of blood glucose control in patients with T2DM.Jiao Wang Meng-Yang Wang Hui Wang Hong-Wei Liu Rui Lu Tong-Qing Duan Chang-Ping Li Zhuang Cui Yuan-Yuan Liu Yuan-Jun Lyu Jun Ma 2020Chinese Medical Journal2020,,1:19
13Meta-analyses on prevalence of selected Parkinson’s nonmotor symptoms before and after diagnosis显示文摘Background:Nonmotor symptoms are common among patients with Parkinson’s disease(PD)and some may precede disease diagnosis.Methods:We conducted a meta-analysis on the prevalence of selected nonmotor symptoms before and after PD diagnosis,using random-effect models.We searched PubMed(1965 through October/November 2012)for the following symptoms:hyposmia,constipation,rapid eye movement sleep behavior disorder,excessive daytime sleepiness,depression,and anxiety.Eligible studies were publications in English with original data on one or more of these symptoms.Results:The search generated 2,373 non-duplicated publications and 332 met the inclusion criteria,mostly(n=320)on symptoms after PD diagnosis.For all symptoms,the prevalence was substantially higher in PD cases than in controls,each affecting over a third of the patients.Hyposmia was the most prevalent(75.5%in cases vs.19.1%in controls),followed by constipation(50%vs.17.7%),anxiety(39.9%vs.19.1%),rapid eye movement sleep behavior disorder(37.0%vs.7.0%),depression(36.6%vs.14.9%),and excessive daytime sleepiness(33.9%vs.10.5%).We observed substantial heterogeneities across studies and meta-regression analyses suggested that several factors might have contributed to this.However,the prevalence estimates were fairly robust in several sensitivity analyses.Only 20 studies had data on any symptoms prior to PD diagnosis,but still the analyses revealed higher prevalence in future PD cases than in controls.Conclusion:These symptoms are common among PD patients both before and after diagnosis.Further studies are needed to understand the natural history of nonmotor symptoms in PD and their etiological and clinical implications.Honglei Chen Edward J Zhao Wen Zhang Yi Lu Rui Liu Xuemei Huang Anna J Ciesielski-Jones Michele A Justice Deborah S Cousins Shyamal Peddada 2015Translational Neurodegeneration2015,4,1:18
14Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases显示文摘Rui Chen Lei Wang Xia Sheng Shu-Guang Piao Xin-Wen Nian Xin Cheng Tie Zhou Hui-Zhen Li Ya-Wei Liu Guang-Hua Chen Chun-Lei Zhang De-Pei Kong Guang-An Xiao Xin Lu Zhen-Yu Jia Zhi-Yong Liu Ying-Hao Sun 2018Asian Journal of Andrology2018,20,5:18
15The role of the HIF-1α/ALYREF/PKM2 axis in glycolysis and tumorigenesis of bladder cancer显示文摘Background:As a rate-limiting enzyme of glycolysis,pyruvate kinase muscle isozyme M2(PKM2)participates in tumor metabolism and growth.The regulatory network of PKM2 in cancer is complex and has not been fully studied in bladder cancer.The 5-methylcytidine(m5C)modification in PKM2 mRNA might participate in the pathogenesis of bladder cancer and need to be further clarified.This study aimed to investigate the biological function and regulatory mechanism of PKM2 in bladder cancer.Methods:The expression of PKM2 and Aly/REF export factor(ALYREF)was measured by Western blotting,qRT-PCR,and immunohistochemistry.The bioprocesses of bladder cancer cells were demonstrated by a series of experiments in vitro and in vivo.RNA immunoprecipitation,RNA-sequencing,and dualluciferase reporter assays were conducted to explore the potential regulatory mechanisms of PKM2 in bladder cancer.Results:In bladder cancer,we first demonstrated that ALYREF stabilized PKM2 mRNA and bound to its m5C sites in 3′-untranslated regions.Overexpression of ALYREF promoted bladder cancer cell proliferation by PKM2-mediated glycolysis.Furthermore,high expression of PKM2 and ALYREF predicted poor survival in bladder cancer patients.Finally,we found that hypoxia-inducible factor-1alpha(HIF-1α)indirectly up-regulated the expression of PKM2 by activating ALYREF in addition to activating its transcription directly.Conclusions:The m5C modification in PKM2 mRNA in the HIF-1α/ALYREF/PKM2 axis may promote the glucose metabolism of bladder cancer,providing a new promising therapeutic target for bladder cancer.Jing-Zi Wang Wei Zhu Jie Han Xiao Yang Rui Zhou Hong-Cheng Lu Hao Yu Wen-Bo Yuan Peng-Chao Li Jun Tao Qiang Lu Ji-Fu Wei Haiwei Yang 2021Cancer Communications2021,41,7:17
16Microwave Exposure Impairs Synaptic Plasticity in the Rat Hippocampus and PC12 Cells through Over-activation of the NMDA Receptor Signaling Pathway显示文摘Objective The aim of this study is to investigate whether microwave exposure would affect the N-methyl-D-aspartate receptor(NMDAR) signaling pathway to establish whether this plays a role in synaptic plasticity impairment. Methods 48 male Wistar rats were exposed to 30 m W/cm2 microwave for 10 min every other day for three times. Hippocampal structure was observed through H&E staining and transmission electron microscope. PC12 cells were exposed to 30 m W/cm2 microwave for 5 min and the synapse morphology was visualized with scanning electron microscope and atomic force microscope. The release of amino acid neurotransmitters and calcium influx were detected. The expressions of several key NMDAR signaling molecules were evaluated. Results Microwave exposure caused injury in rat hippocampal structure and PC12 cells, especially the structure and quantity of synapses. The ratio of glutamic acid and gamma-aminobutyric acid neurotransmitters was increased and the intracellular calcium level was elevated in PC12 cells. A significant change in NMDAR subunits(NR1, NR2 A, and NR2B) and related signaling molecules(Ca2+/calmodulin-dependent kinase II gamma and phosphorylated c AMP-response element binding protein) were examined. Conclusion 30 m W/cm2 microwave exposure resulted in alterations of synaptic structure, amino acid neurotransmitter release and calcium influx. NMDAR signaling molecules were closely associated with impaired synaptic plasticity.XIONG Lu SUN Cheng Feng ZHANG Jing GAO Ya Bing WANG Li Feng ZUO Hong Yan WANG Shui Ming ZHOU Hong Mei XU Xin Ping DONG Ji YAO Bin Wei ZHAO Li PENG Rui Yun 2015Biomedical and Environmental Sciences2015,28,1:16
17-765G > C COX-2 polymorphism may be a susceptibility marker for gastric adenocarcinoma in patients with atrophy or intestinal metaplasia显示文摘AIM: To investigate the relationship between the -765G > C COX-2 polymorphism and the development of different gastric lesions: atrophy or intestinal metaplasia and gastric adenocarcinoma. METHODS: A cross-sectional study was performed involving 320 Portuguese individuals (210 without evidence of neoplastic disease, 73 patients with gastric adenocarcinomas and 37 with atrophy or intestinal metaplasia) using a PCR-RFLP method. RESULTS: -765C allele was overrepresented in the patients with gastric adenocarcinoma (51%) when compared either with the control group (38%) or patients with atrophy or intestinal metaplasia (27%). Callele was found to be very common in our population (0.22), and a multivariate logistic regression analysis revealed nearly 3-fold increased risk for the progression to gastric adenocarcinoma in patients with atrophy or intestinal metaplasia carrying the -765C allele (OR = 2.67, 95% CI = 1.03-6.93; P = 0.04).considered as another susceptibility marker for gastric adenocarcinoma development in patients with atrophy or intestinal metaplasia.Carina Pereira Hugo Sousa Paula Ferreira Maria Fragoso Luís Moreira-Dias Carlos Lopes Rui Medeiros Mário Dinis-Ribeiro 2006World Journal of Gastroenterology2006,12,34:16
18Enhancing both selectivity and coking-resistance of a single-atom Pd1/C3N4 catalyst for acetylene hydrogenation显示文摘选择加氢是在化学升级的一个重要工业催化过程,在因为他们的高加氢活动,基于 Pd 的催化剂广泛地被使用的地方。然而,因为重焦炭形成,差的选择和短催化剂一生是主要担心。在这个工作,原子地驱散 Pd 原子成功地在 graphitic 碳氮化物上被综合(g-C 3 用原子层免职的 N 4) 。没有 Pd nanoparticle (NP ) ,改正错误的高角度的环形的黑暗地的扫描传播电子显微镜学(HAADF 茎) 证实了孤立的 Pd 原子的主导的存在形成。在在过量乙烯的乙炔的选择加氢期间, g-C 3 N 4-supported Pd NP 催化剂比常规 Pd/Al 2 O 3 和 Pd/SiO 2 催化剂。在原处, X 光检查光致核裂变光谱学表明可观的费用从 Pd NP 转到 g-C 3 N 4 多半在催化表演改进起一个重要作用。更给人深刻印象地,单个原子的 Pd 1/C3 N 4 催化剂展出了两种更高的乙烯选择和更高的 coking 抵抗。我们的工作证明单个原子的 Pd 催化剂是在加氢反应改进选择和焦炭抵抗的一个有希望的候选人。Xiaohui Huang Yujia Xia Yuanjie Cao Xusheng Zheng Haibin Pan Junfa Zhu Chao Ma Hengwei Wang Junjie Li Rui You Shiqiang Wei Weixin Huang Junling Lu 2017Nano Research2017,10,4:16
19Two surgical procedures for esophagogastric variceal bleeding in patients with portal hypertension显示文摘AIM:To determine the clinical value of a splenorenal shunt plus pericardial devascularization(PCVD)in portal hypertension(PHT)patients with variceal bleeding.METHODS:From January 2008 to November 2012,290 patients with cirrhotic portal hypertension were treated surgically in our department for the prevention of gastroesophageal variceal bleeding:207 patients received a routine PCVD procedure(PCVD group),and83 patients received a PCVD plus a splenorenal shunt procedure(combined group).Changes in hemodynamic parameters,rebleeding,encephalopathy,portal vein thrombosis,and mortality were analyzed.RESULTS:The free portal pressure decreased to 21.43±4.35 mmHg in the combined group compared with24.61±5.42 mmHg in the PCVD group(P<0.05).The changes in hemodynamic parameters were more significant in the combined group(P<0.05).The long-term rebleeding rate was 7.22%in the combined group,which was lower than that in the PCVD group(14.93%),(P<0.05).CONCLUSION:Devascularization plus splenorenal shunt is an effective and safe strategy to control esophagogastric variceal bleeding in PHT.It should be recommended as a first-line treatment for preventing bleeding in PHT patients when surgical interventions are considered.Lin Yang Li-Juan Yuan Rui Dong Ji-Kai Yin Qing Wang Tao Li Jiang-Bin Li Xi-Lin Du Jian-Guo Lu 2013World Journal of Gastroenterology2013,19,48:15
20A Deep Learning Method for Bias Correction of ECMWF 24–240 h Forecasts显示文摘Correcting the forecast bias of numerical weather prediction models is important for severe weather warnings.The refined grid forecast requires direct correction on gridded forecast products,as opposed to correcting forecast data only at individual weather stations.In this study,a deep learning method called CU-net is proposed to correct the gridded forecasts of four weather variables from the European Centre for Medium-Range Weather Forecast Integrated Forecasting System global model(ECMWF-IFS): 2-m temperature,2-m relative humidity,10-m wind speed,and 10-m wind direction,with a forecast lead time of 24 h to 240 h in North China.First,the forecast correction problem is transformed into an image-toimage translation problem in deep learning under the CU-net architecture,which is based on convolutional neural networks.Second,the ECMWF-IFS forecasts and ECMWF reanalysis data(ERA5) from 2005 to 2018 are used as training,validation,and testing datasets.The predictors and labels(ground truth) of the model are created using the ECMWF-IFS and ERA5,respectively.Finally,the correction performance of CU-net is compared with a conventional method,anomaly numerical correction with observations(ANO).Results show that forecasts from CU-net have lower root mean square error,bias,mean absolute error,and higher correlation coefficient than those from ANO for all forecast lead times from 24 h to 240 h.CU-net improves upon the ECMWF-IFS forecast for all four weather variables in terms of the above evaluation metrics,whereas ANO improves upon ECMWF-IFS performance only for 2-m temperature and relative humidity.For the correction of the 10-m wind direction forecast,which is often difficult to achieve,CU-net also improves the correction performance.Lei HAN Mingxuan CHEN Kangkai CHEN Haonan CHEN Yanbiao ZHANG Bing LU Linye SONG Rui QIN 2021Advances in Atmospheric Sciences2021,38,9:15
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