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95篇 您的检索式:作者名="Xiao Lin ZENG"
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1Clinical trial with traditional Chinese medicine intervention ''tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'' for chronic hepatitis B-associated liver failure显示文摘AIM:To study the clinical efficacy of traditional Chinese medicine(TCM)intervention'tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'('TTK')for treating liver failure due to chronic hepatitis B.METHODS:We designed the study as a randomized controlled clinical trial.Registration number of Chinese Clinical Trial Registry is Chi CTR-TRC-12002961.A total of 144 patients with liver failure due to infection with chronic hepatitis B virus were enrolled in this randomized controlled clinical study.Participants were randomly assigned to the following three groups:(1)a modern medicine control group(MMC group,36patients);(2)a'tonifying qi and detoxification'('TQD')group(72 patients);and(3)a'tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'('TTK')group(36patients).Patients in the MMC group received general internal medicine treatment;patients in the'TQD'group were given a TCM formula'tonifying qi and detoxification'and general internal medicine treatment;patients in the'TTK'group were given a TCM formula of'TTK'and general internal medicine treatment.All participants were treated for 8 wk and then followed at 48 wk following their final treatment.The primaryefficacy end point was the patient fatality rate in each group.Measurements of various virological and biochemical indicators served as secondary endpoints.The one-way analysis of variance and the t-test were used to compare patient outcomes in the different treatment groups.RESULTS:At the 48-wk post-treatment time point,the patient fatality rates in the MMC,'TQD',and'TTK'groups were 51.61%,35.38%,and 16.67%,respectively,and the differences between groups were statistically significant(P<0.05).However,there were no significant differences in the levels of hepatitis B virus DNA or prothrombin activity among the three groups(P>0.05).Patients in the'TTK'group had significantly higher levels of serum total bilirubin compared to MMC subjects(339.40μmol/L±270.09μmol/L vs 176.13μmol/L±185.70μmol/L,P=0.014).Serum albumin levels were significantly increased in both the'TQD'group and'TTK'group as compared with the MMC group(31.30 g/L±4.77g/L,30.72 g/L±2.89 g/L vs 28.57 g/L±4.56 g/L,P<0.05).There were no significant differences in levels of alanine transaminase among the three groups(P>0.05).Safety data showed that there was one case of stomachache in the'TQD'group and one case of gastrointestinal side effect in the'TTK'group.CONCLUSION:Treatment with'TTK'improved the survival rates of patients with liver failure due to chronic hepatitis B.Additionally,liver tissue was regenerated and liver function was restored.Han-Min Li Zhi-Hua Ye Jun Zhang Xiang Gao Yan-Ming Chen Xin Yao Jian-Xun Gu Lei Zhan Yang Ji Jian-Liang Xu Ying-He Zeng Fan Yang Lin Xiao Guo-Guang Sheng Wei Xin Qi Long Qing-Jing Zhu Zhao-Hong Shi Lian-Guo Ruan Jia-Yao Yang Chang-Chun Li Hong-Bin Wu Sheng-Duo Chen Xin-La Luo 2014World Journal of Gastroenterology2014,20,48:20
2Safety and efficacy of ciprofol vs.propofol for sedation in intensive care unit patients with mechanical ventilation:a multi-center,open label,randomized,phase 2 trial显示文摘Background:Ciprofol(HSK3486;Haisco Pharmaceutical Group Co.,Ltd.,Chengdu,China),developed as a novel 2,6-disubstituted phenol derivative showed similar tolerability and efficacy characteristics as propofol when applicated as continuous intravenous infusion for 12 h maintenance sedation in a previous phase 1 trial.The phase 2 trial was designed to investigate the safety,efficacy,and pharmacokinetic characteristics of ciprofol for sedation of patients undergoing mechanical ventilation.Methods:In this multicenter,open label,randomized,propofol positive-controlled,phase 2 trial,39 Chinese intensive care unit patients receiving mechanical ventilation were enrolled and randomly assigned to a ciprofol or propofol group in a 2:1 ratio.The ciprofol infusion was started with a loading infusion of 0.1-0.2 mg/kg for 0.5-5.0 min,followed by an initial maintenance infusion rate of 0.30 mg·kg^(-1)·h^(-1),which could be adjusted to an infusion rate of 0.06 to 0.80 mg·kg^(-1)·h^(-1),whereas for propofol the loading infusion dose was 0.5-1.0 mg/kg for 0.5-5.0 min,followed by an initial maintenance infusion rate of 1.50 mg·kg^(-1)·h^(-1),which could be adjusted to 0.30-4.00 mg·kg^(-1)·h^(-1)to achieve-2 to+1 Richmond Agitation-Sedation Scale sedation within 6-24 h of drug administration.Results:Of the 39 enrolled patients,36 completed the trial.The median(min,max)of the average time to sedation compliance values for ciprofol and propofol were 60.0(52.6,60.0)min and 60.0(55.2,60.0)min,with median difference of 0.00(95%confidence interval:0.00,0.00).In total,29(74.4%)patients comprising 18(69.2%)in the ciprofol and 11(84.6%)in the propofol group experienced 86 treatment emergent adverse events(TEAEs),the majority being of severity grade 1 or 2.Drug-and sedation-related TEAEs were hypotension(7.7%vs.23.1%,P=0.310)and sinus bradycardia(3.8%vs.7.7%,P=1.000)in the ciprofol and propofol groups,respectively.The plasma concentration-time curves for ciprofol and propofol were similar.Conclusions:ciprofol is comparable to propofol with good tolerance and efficacy for sedation of Chinese intensive care unit patients undergoing mechanical ventilation in the present study setting.Trial registration:ClinicalTrials.gov,NCT04147416.Yongjun Liu Xiangyou Yu Duming Zhu Jun Zeng Qinhan Lin Bin Zang Chuanxi Chen Ning Liu Xiao Liu Wei Gao Xiangdong Guan 2022Chinese Medical Journal2022,,9:19
3YAP promotes osteogenesis and suppresses adipogenic differentiation by regulatingβ-catenin signaling显示文摘YAP(yes-associated protein) is a transcriptional factor that is negatively regulated by Hippo pathway, a conserved pathway for the development and size control of multiple organs. The exact function of YAP in bone homeostasis remains controversial. Here we provide evidence for YAP's function in promoting osteogenesis, suppressing adipogenesis, and thus maintaining bone homeostasis.YAP is selectively expressed in osteoblast(OB)-lineage cells. Conditionally knocking out Yap in the OB lineage in mice reduces cell proliferation and OB differentiation and increases adipocyte formation, resulting in a trabecular bone loss. Mechanistically, YAP interacts with β-catenin and is necessary for maintenance of nuclear β-catenin level and Wnt/β-catenin signaling. Expression of β-catenin in YAP-deficient BMSCs(bone marrow stromal cells) diminishes the osteogenesis deficit. These results thus identify YAP-β-catenin as an important pathway for osteogenesis during adult bone remodeling and uncover a mechanism underlying YAP regulation of bone homeostasis.Jin-Xiu Pan Lei Xiong Kai Zhao Peng Zeng Bo Wang Fu-Lei Tang Dong Sun Hao-han Guo Xiao Yang Shun Cui Wen-Fang Xia Lin Mei Wen-Cheng Xiong 2018Bone Research2018,6,2:19
4Sex- and region- specific alterations of basal amino acid and monoamine metabolism in the brain of aquaporin -4 knockout mice显示文摘Yi Fan Jing Zhang Xiu - Lan Sun Lin Gao Xiao - Ning Zeng Jian - Hua Ding Cong Cao Ling Niu Gang Hu 2005中国药理通讯2005,22,4:14
5Design of the Full-disk Magneto Graph (FMG) onboard the ASO-S显示文摘The Full-disk Magneto Graph(FMG),a payload onboard the Advanced Space Solar Observatory(ASO-S),will measure the vector magnetic field in the photosphere.The instrument consists of a frontwindow filter,a telescope,an LCVR polarimeter,an image-stabilization system,a seven-stage tunable Lyot filter,a CMOS camera with 4096×4096 pixels and a pair of calibration/focus wheels.In this paper,we describe the design of the FMG instrument and provide a summary of test observations carried out with the FMG prototype.Yuan-Yong Deng Hai-Ying Zhang Jian-Feng Yang Fu Li Jia-Ben Lin Jun-Feng Hou Zhen Wu Qian Song Wei Duan Xian-Yong Bai Dong-Guang Wang Juan Lv Wei Ge Jia-Ning Wang Zhao-Ying Zheng Chen-Jie Wang Nan-Ge Wang Hou-Kun Ni Yi-Zhong Zeng Yang Zhang Xiao Yang Ying-Zi Sun Zhi-Yong Zhang Xiao-Fan Wang 2019Research in Astronomy and Astrophysics2019,19,11:14
6Characterizing a large outbreak of dengue fever in Guangdong Province, China显示文摘Background:Dengue cases have been reported each year for the past 25 years in Guangdong Province,China with a recorded historical peak in 2014.This study aims to describe the epidemiological characteristics of this large outbreak in order to better understand its epidemic factors and to inform control strategies.Methods:Data for clinically diagnosed and laboratory-confirmed dengue fever cases in 2014 were extracted from the China Notifiable Infectious Disease Reporting System.We analyzed the incidence and characteristics of imported and indigenous cases in terms of population,temporal and spatial distributions.Results:A total of 45224 dengue fever cases and 6 deaths were notified in Guangdong Province in 2014,with an incidence of 47.3 per 100000 people.The elderly(65+years)represented 11.7%of total indigenous cases with the highest incidence(72.3 per 100000).Household workers and the unemployed accounted for 23.1%of indigenous cases.The majority of indigenous cases occurred in the 37th to 44th week of 2014(September and October)and almost all(20 of 21)prefecture-level cities in Guangdong were affected.Compared to the non-Pearl River Delta Region,the Pearl River Delta Region accounted for the majority of dengue cases and reported cases earlier in 2014.Dengue virus serotypes 1(DENV-1),2(DENV-2)and 3(DENV-3)were detected and DENV-1 was predominant(88.4%).Conclusions:Dengue fever is a serious public health problem and is emerging as a continuous threat in Guangdong Province.There is an urgent need to enhance dengue surveillance and control,especially for the high-risk populations in high-risk areas.Jian-Peng Xiao Jian-Feng He Ai-Ping Deng Hua-Liang Lin Tie Song Zhi-Qiang Peng Xiao-Cheng Wu Tao Liu Zhi-Hao Li Shannon Rutherford Wei-Lin Zeng Xing Li Wen-Jun Ma Yong-Hui Zhang 2016Infectious Diseases of Poverty2016,5,1:13
7First dark matter search results from the PandaX-Ⅰ experiment显示文摘We report on the first dark-matter(DM)search results from PandaX-I,a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory.In the 37-kg liquid xenon target with 17.4 live-days of exposure,no DM particle candidate event was found.This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results.The minimum upper limit,3.7×10-44cm2,for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49 GeV/c2at 90%confidence level.XIAO MengJiao XIAO Xiang ZHAO Li CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HU Jie HUANG XingTao JI XiangDong JU YongLin LEI SiAo LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing STEPHENSON Scott TAN AnDi TARL Greg WANG HongWei WANG JiMin WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIE PengWei YOU YingHui ZENG XiongHui ZHANG Hua ZHANG Tao ZHU ZhongHua 2014Science China(Physics,Mechanics & Astronomy)2014,57,11:10
8Convergent genomic signatures of high-altitude adaptation among domestic mammals显示文摘Abundant and diverse domestic mammals living on the Tibetan Plateau provide useful materials for investigating adaptive evolution and genetic convergence.Here,we used 327 genomes from horses,sheep,goats,cattle,pigs and dogs living at both high and low altitudes,including 73 genomes generated for this study,to disentangle the genetic mechanisms underlying local adaptation of domestic mammals.Although molecular convergence is comparatively rare at the DNA sequence level,we found convergent signature of positive selection at the gene level,particularly the EPAS1 gene in these Tibetan domestic mammals.We also reported a potential function in response to hypoxia for the gene C10 orf67,which underwent positive selection in three of the domestic mammals.Our data provide an insight into adaptive evolution of high-altitude domestic mammals,and should facilitate the search for additional novel genes involved in the hypoxia response pathway.Dong-Dong Wu Cui-Ping Yang Ming-Shan Wang Kun-Zhe Dong Da-Wei Yan Zi-Qian Hao Song-Qing Fan Shu-Zhou Chu Qiu-Shuo Shen Li-Ping Jiang Yan Li Lin Zeng He-Qun Liu Hai-Bing Xie Yun-Fei Ma Xiao-Yan Kong Shu-Li Yang Xin-Xing Dong Ali Esmailizadeh David M Irwin Xiao Xiao Ming Li Yang Dong Wen Wang Peng Shi Hai-Peng Li Yue-Hui Ma Xiao Gou Yong-Bin Chen Ya-Ping Zhang 2020National Science Review2020,7,6:7
9Untreated Prior Pulmonary Tuberculosis Adversely Affects Pregnancy Outcomes in Infertile Women Undergoing in vitro Fertilization and Embryo Transfer: A Large Retrospective Cohort Study显示文摘Objective Prior pulmonary tuberculosis(PTB) on chest X-ray(CXR) was commonly found in infertile patients receiving examinations before in vitro fertilization and embryo transfer(IVF-ET). It was unclear whether untreated PTB would affect pregnancy outcomes after IVF-ET.Method We conducted a retrospective cohort study of 14,254 infertile patients who had received IVFET at Peking University Third Hospital in 2017. Prior PTB was defined as the presence of signs suggestive of old or inactive PTB on CXR, with or without a clinical TB history. Patients who had prior PTB on CXR but had not received a clinical diagnosis and anti-TB therapy were included for analysis. Live birth,clinical pregnancy, and miscarriage rates were compared between the untreated PTB and non-PTB groups.Results The untreated PTB group had significantly lower clinical pregnancy(31.7% vs. 38.1%) and live birth(23.8% vs. 30.6%) rates than the non-PTB group(both P < 0.001). Multivariate analysis revealed that untreated PTB was a risk factor for decreased live birth rate [odds ratio(OR), 0.80;95% confidence interval(CI), 0.66–0.98;P = 0.028] in all patients and for increased miscarriage(OR, 4.19;95% CI,1.69–10.39;P = 0.002) and decreased live birth(OR, 0.45;95% CI, 0.24–0.83;P = 0.011) rates in patients with unexplained infertility.Conclusions Untreated PTB was associated with adverse pregnancy outcomes after IVF-ET, especially in patients with unexplained infertility, highlighting the clinical significance of PTB in this specific patient population.GAI Xiao Yan CHI Hong Bin ZENG Lin CAO Wen Li CHEN Li Xue ZHANG Chen LU Ming NING Lan Ding CHANG Chun ZHANG Wei Xia LIU Ping LI Rong SUN Yong Chang QIAO Jie 2021Biomedical and Environmental Sciences2021,34,2:6
10Smoking Behavior Among Secondary School Students--China, 2021显示文摘Summary What is already known about this topic?In 2019,China CDC conducted the National Youth Tobacco Survey among secondary school students,and the prevalence rates of ever,current,and frequent smoking were 17.9%,5.9%,and 1.8%,respectively.What is added by this report?The prevalence rate of cigarette use in males decreased largely from 2019 to 2021 in China,while it increased in 18 provincial-level administrative divisions(PLADs)for females.The tobacco control situation remains challenging among vocational senior high school(VSHS)students.Significant geographical disparities existed in cigarette use.What are the implications for public health practice?Targeted tobacco control policies aimed at VSHS students are needed,specifically those PLADs with higher smoking rates.Additionally,close attention should be paid to female smokers.Xinying Zeng Xinbo Di Shiwei Liu Huiyu Xie Zida Meng Lin Xiao 2022China CDC weekly2022,4,21:5
11Inadequate glycaemic control and antidiabetic therapy among inpatients with type 2 diabetes in Guangdong Province of China显示文摘背景糖尿病 mellitus 在调查的 China.We 在最近的年里变得流行在来自在广东省教医院的十所大学的类型 2 糖尿病的住院病人之中的多糖症和不适当的 glycaemic 控制的流行,中国。当 HbA1c() 6.5%.Therapeutic 政体包括了没有干预,在糖尿病的病人的方法不适当的 glycaemic 控制被定义,生活方式仅仅,口头的 antiglycemic 代理人(OA ) ,加 OA (insulin+OA ) 的胰岛素,或胰岛素仅仅。Antidiabetic 管理包括了 monotherapy,两倍治疗,三元组或四倍的治疗。在有已知的历史的 493 个糖尿病的住院病人之中的结果, 75%had HbA1c6.5%.Inadequate 葡萄糖控制率更经常比在 OA 政体(71%)( PO.001 )上在 insulin+OA 政体(97%)上在病人被看见,并且在联合治疗(81%-96%)上的病人更经常比 monotherapy (75%)( P0.05 ),胰岛素上的 .Patients 由吝啬的 HbA1c , glycemic 控制率,糖尿病持续时间, microvascular 复杂并发症,和 BMI ( P0.01 )在 OA 上与病人显著地不同。这研究看了类型 2 糖尿病的病人的那 glycaemic 控制的结论为胰岛素的收到的胰岛素和开始时间通常是谁的病人败坏了 delayed.It 依赖临床医生从传统的逐步的治疗搬到更活跃、早的联合 antidiabetic 治疗提供更好的葡萄糖控制。BI Yan YAN Jin-hua LIAO Zhi-hong LI Yan-bing ZENG Long-yi TANG Kuan-xiao XUE Yao-ming YANG Hua-zhang LI Lu CAI De-hong WU Ge ZHANG Fan LIN Shao-da XIAO Zheng-hua ZHU Da-long WENG Jian-ping 2008Chinese Medical Journal2008,,8:5
12Cells in G_2/M phase increased in human nasopharyngeal carcinoma cell line by EBV-LMP1 through activation of NF-кB and AP-1显示文摘Although previous studies showed that the principal oncoprotein encoded by Epstein-Barr virus, latent membrane protein 1 (LMP1), could induce the nasopharyngeal carcinoma cells in G2/M phase increased, littleis known about the target molecules and mechanisms. The present study demonstrated that LMP1 couldinduce the accumulation of p53 protein and upregulate its transactivity in a dose dependent manner, whichresulted in the decrease of the kinase activity of cdc2/cyclin B complex and inducing arrest at G2/M phasethrough the activation of NF-kB and AP-1 signaling pathways, and the effect of NF-kB was more obviousthan that of AP-1. This study provided some significant evidence for further elucidating the molecular mechanisms that LMP1 had effects on the surveillance mechanism of cell cycle and promoting the survivalof transformed cells and tumorigenesis.LIN DENG,JING YANG,XIAO RONG ZHAO,XI YUN DENG,LIANG ZENG,HUAN HUA GU,MIN TANG,YA CAOCancer Research Institute,Xiangya School of Medicine,Central South University,Xiangya Road 88,Chang-sha,Hunan 410078,China 2003Cell Research2003,13,3:5
13Fast-Suppressor Screening for New Components in Protein Trafficking,Organelle Biogenesis and Silencing Pathway in Arabidopsis thaliana Using DEX-Inducible FREE1-RNAi Plants显示文摘Membrane trafficking is essential for plant growth and responses to external signals.The plant unique FYVE domain-containing protein FREE1 is a component of the ESCRT complex(endosomal sorting complex required for transport).FREE1 plays multiple roles in regulating protein trafficking and organelle biogenesis including the formation of intraluminal vesicles of multivesicular body(MVB),vacuolar protein transport and vacuole biogenesis,and autophagic degradation.FREE1 knockout plants show defective MVB formation,abnormal vacuolar transport,fragmented vacuoles,accumulated autophagosomes,and seedling lethality.To further uncover the underlying mechanisms of FREE1 function in plants,we performed a forward genetic screen for mutants that suppressed the seedling lethal phenotype of FREE1-RNAi transgenic plants.The obtained mutants are termed as suppressors of free1(sof).To date,229 putative sof mutants have been identified.Barely detecting of FREE1 protein with M3plants further identified 84 FREE1-related suppressors.Also145 mutants showing no reduction of FREE1 protein were termed as RNAi-related mutants.Through next-generation sequencing(NGS)of bulked DNA from F2mapping population of two RNAi-related sof mutants,FREE1-RNAi T-DNA inserted on chromosome 1 was identified and the causal mutation of putative sof mutant is being identified similarly.These FREE1-and RNAi-related sof mutants will be useful tools and resources for illustrating the underlying mechanisms of FREE1 function in intracellular trafficking and organelle biogenesis,as well as for uncovering the new components involved in the regulation of silencing pathways in plants.Qiong Zhao Caiji Gao PoShing Lee Lin Liu Shaofang Li Tangjin Hu Jinbo Shen Shuying Pan Hao Ye Yunru Chen Wenhan Cao Yong Cui Peng Zeng Sheng Yu Yangbin Gao Liang Chen Beixin Mo Xin Liu Shi Xiao Yunde Zhao Silin Zhong Xuemei Chen Liwen Jiang 2015Journal of Genetics and Genomics2015,42,6:4
14Antidepressant-like effect of active fraction of Polyrhachisvicina Roger in a rat depression model显示文摘OBJECTIVE: To investigate the antidepressant-likeeffect of active fraction of Polyrhachis vicina Roger(AFPR) in a rat depression model, and to elucidate the underlying mechanism.METHODS: AFPR was extracted with ethanol followed by petroleum ether. Its antidepressant-like effect was investigated in mice by tail suspension test(TST), forced swimming test(FST) and open field test(OPT). A repeated dose of reserpine(0.5 mg/kg, daily for 14 d) was used to establish a rat depression model. Fluoxetine was used as positive control agent. The effect of AFPR on reserpine-induced ptosis, hypothermia and akinesia, the levels of monoamines and their metabolites, and the activity of monoamine oxidase(MAO) in hippocampus and prefrontal cortex were determined.RESULTS: Administration of AFPR by gavage at 160 and 320 mg/kg significantly reduced the duration of immobility in the FST and TST, and did not affect locomotor activity in the OPT. In the reserpine-induced depression model, AFPR attenuated anhedonia, demonstrated by reversing hypothermia, akinesia and sucrose consumption. AFPR significantly increased the concentration of monoamines, including dopamine, serotonin, noradrenaline and acetylcholine.CONCLUSION: AFPR normalized the metabolism rates of noradrenaline, serotonin and dopamine,and the activity of MAO, which were altered by chronic reserpine exposure. The findings suggest that modulation of the monoaminergic neurotransmitter system likely underlies the antidepressant-like effect of AFPR.Wei Guining Chu Shifeng Su Qibiao Su Hua Lin Meiyu He Fei Lu Wenjie Lu Guoshou Huang Zhoufeng Tan Xiao Lin Xiao Zeng Xianbiao Wei Baowei Chen Naihong 2018Journal of Traditional Chinese Medicine2018,38,1:4
15prognostic significance of pretreatment serum carcinoembryonic antigen levels in gastric cancer with pathological lymph node-negative: A large sample singlecenter retrospective study显示文摘AIM To assess whether elevated serum carcinoembryonic antigen(CEA) is in the inferior prognosis for pathological lymph node-negative(p N_0) gastric cancer(GC) patients who underwent D_2 gastrectomy.METHODS About 469 p N0 GC patients,who received D^2 radical gastrectomy were retrospectively analyzed. The X-tile plots cut-off point for CEA were 30.02 ng/m L using minimum P-value from log-rank χ~2 statistics,and p N_0 GC patients were assigned to two groups: those more than 30.02 ng/m L(n = 48;CEA-high group) and those less than 30.02 ng/m L(n = 421;CEA-low group). Clinicopathologic characteristics were compared usingPearson's χ2 or Fisher's exact tests,and survival curves were so manufactured using the Kaplan-Meier method. Univariate and multivariate analysis were carried out using the logistic regression method.RESULTS The percentage of vessel carcinoma embolus(31.35% vs 17.1%) and advanced GC(T_(2-4b))(81.25% vs 65.32%) were higher in CEA-high group than CEA-low group. The CEA-positive patients had a significantly poorer prognosis than the CEA-nagetive patients in terms of overall survival(57.74% vs 90.69%,P < 0.05),and no different was found between subgroup of T category,differentiation,nerve invasion,and vessel carcinoma embolus(all P > 0.05). Multivariate survival analysis showed that CEA(OR = 4.924),and T category(OR = 2.214) were significant prognostic factors for stage p N0 GC(all P < 0.05). Besides,only T category(OR = 1.962) was an independent hazard factor in the CEA-high group(P < 0.05).CONCLUSION Those pretreatment serum CEA levels over 30.02 ng/m L on behalf of worse characteristics and unfavourable tumor behavior,and a poor prognosis for a nearly doubled risk of mortality in GC patients.Jun Xiao Zai-Sheng Ye Sheng-Hong Wei Yi Zeng Zhen-Meng Lin Yi Wang Wen-Hao Teng Lu-Chuan Chen 2017World Journal of Gastroenterology2017,23,48:4
16Tobacco Use and Exposure Among Secondary School Students — China, 2019显示文摘Summary What is already known about this topic?Using the framework of the global youth tobacco survey(GYTS),China CDC conducted the first round of a national tobacco survey among junior high school(JHS)students in 2014,indicating that 17.9%and 5.9%of respondents were experimental and current cigarette smokers,respectively.Shiwei Liu Lin Xiao Xinying Zeng Xinbo Di Xinhua Li 2020China CDC weekly2020,2,22:4
17Clinical and Pathological Features of Riedel's Thyroiditis显示文摘Objective To evaluate the clinical and pathological features of Riedel's thyroiditis(RT),and current diagnostic and treatment methods for that disease.Methods Five RT cases identified by surgery and pathological examinations at Peking Union Medical College Hospital from 1985 to 2009 were analyzed and compared with the cases reported in the literature in terms of clinical and pathological features.Immunohistochemical staining of kappa and lambda light chains was carried out for RT tissues from all the five patients.Results All the five cases were females,aged 45-55 years.Elevation of serum thyroid autoantibodies was found in only one patient,who had longer disease duration than the others.Pathological examination revealed invasive fibrosclerosis of the thyroid follicles,thyroid capsule,and the surrounding tissues.In RT tissues,the number of cells containing lambda chains was a little higher than those containing kappa chains.Conclusions RT is a rare disease which might be more common in middle-aged females than in other populations.Pathological features include the destruction of thyroid follicle,extension into surrounding tissues by inflammatory cells and fibrous tissues.Immunohistochemical staining of kappa and lambda chains could help diagnose RT.Lin Lu Feng Gu Wei-xin Dai Wu-yi Li Jie Chen Yu Xiao Zheng-pei Zeng 2010Chinese Medical Sciences Journal2010,25,3:4
18Preliminary experimental results by the prototype of Sanya Incoherent Scatter Radar显示文摘In the past decades,the Incoherent Scatter Radar(ISR)has been demonstrated to be one of the most powerful instruments for ionosphere monitoring.The Institute of Geology and Geophysics at the Chinese Academy of Sciences was founded to build a state-ofthe-art phased-array ISR at Sanya(18.3°N,109.6°E),a low-latitude station on Hainan Island,named the Sanya ISR(SYISR).As a first step,a prototype radar system consisting of eight subarrays(SYISR-8)was built to reduce the technical risk of producing the entire large array.In this work,we have summarized the preliminary experimental results based on the SYISR-8.The amplitude and phase among 256 channels were first calibrated through an embedded internal monitoring network.The mean oscillation of the amplitude and phase after calibration were about 1 dB and 5°,respectively,which met the basic requirements.The beam directivity was confirmed by crossing screen of the International Space Station.The SYISR-8 was further used to detect the tropospheric wind profile and meteors.The derived winds were evaluated by comparison with independent radiosonde and balloon-based GPS measurements.The SYISR-8 was able to observe several typical meteor echoes,such as the meteor head echo,range-spread trail echo,and specular trail echo.These results confirmed the validity and reliability of the SYISR-8 system,thereby reducing the technical risk of producing the entire large array of the SYISR to some extent.XinAn Yue WeiXing Wan Han Xiao LingQi Zeng ChangHai Ke BaiQi Ning Feng Ding BiQiang Zhao Lin Jin Chen Li MingYuan Li JunYi Wang HongLian Hao Ning Zhang 2020Earth and Planetary Physics2020,4,6:3
19Antitumour effects on human colorectal carcinomas cells by stable silencing of phospholipase C-gamma 1 with lentivirus-delivered siRNA显示文摘在大多数 colorectal 癌的背景, phospholipase C (PLC )-gamma 的水平 1 表情极大地被提高。PLC-gamma 1 的增加的表示可以在冒号 carcinogenesis 起一个重要作用,但是机制不是众所周知的。这研究的目的是由使用稳定地在生产 PLC-gamma 1 siRNA 的人的 colorectal 癌 LoVo cells.Methods Recombinant lentivirus 压制了 PLC-gamma 1 表示的 recombinant lentivirus 在冒号 carcinogenesis 评估 PLC-gamma 1 的角色被准备。在 LoVo 房间是由每 lentivirus 的 transduced 以后,稳定地, transduced 房间被 Blasticidin 选择。蛋白质和 PLC-gamma 1 的 mRNA 表示被西方污点、反向的抄写聚合酶链反应(RT-PCR ) 检验房间粘附,移植和 apoptosis 上的 lentivirus 的分析,和效果是在 PLC-gamma 1 缺乏的 analyzed.Results 马厩 LoVo 房间线,被建立。尤其是,没有影响 PLC 的另外的子类型的层次以便在冒号 carcinogenesis 的 PLC-gamma 1 的角色能是内长的 PLC-gamma 1 的 examined.Silencing , PLC-gamma 1 是 silenced 在 vitro 导致了粘附的有效抑制和 LoVo 房间的移植,5氟尿嘧啶的大增加导致了 apoptosis (30%-40%) LoVo cells.Conclusions PLC-gamma 1 可以在人的 colorectal 癌在转移和 anti-apoptosis 起一个重要作用。TAN Li XIAO Bing-xiang ZENG Wei-sen LIN Jun ZOU Zhi-peng XU Ai-min LUO Shen-qiu 2007Chinese Medical Journal2007,,9:3
200.5981μm Sum Frequency Mixing in KTP Crystal显示文摘Based on accurate values of refractive indices,the phase matching angles(θ_(m))and effective nonlinear coeficients(d_(eff))for type I and I I sum frequency mixing of 1.0795 and 1.3414μm radiations were calculated in KTP crystal.The optimum phase matching conditions are thatθm=75.74o in the XZ plane(Ф=0)and deff=17.42 × 10^(-9) esu.The calculated results agree well with the experimental results.Thus,the cw 0.5981μm sum frequency radiation was achieved in KTP crystal using a 1.0795 and 1.3414μm double-wavelength Nd:YAP cw laser.SHEN Hongyuan ZHOU Yuping LIN Wenxiong ZENG Ruirong YU Guifang HUANG Chenghui ZENG Zhengdong ZHANG Weijia JIA Shouquan JIANG Peizhi XIAO Chaoliang 1991Chinese Physics Letters1991,8,4:2
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