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761篇 您的检索式:作者名="Kan Wang"
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1Changes of Reactive Oxygen Species and Related Enzymes in Mitochondrial Respiration During Storage of Harvested Peach Fruits显示文摘Peach fruits [Prumus persica (L.) Batsch, cv. Yuhuasanhao] were used as materials to investigate the changes of reactive oxygen species (ROS) and related enzymes in mitochondria respiration during storage and then their influence on senescence of harvested Peach fruits was studied. The results showed that low temperature (5℃) strongly inhibited the reduction of firmness and the increase in respiration rate. During storage at ambient temperature (20℃), ROS had a cumulative process while malondialdehye (MDA) content continued to increase in associated with enhanced membrane lipid peroxidation. Lipoxygenase (LOX) activity was strongly inhibited under the low temperature condition. The activities of succinic dehydrogenase (SDH), cytochrome C oxidase (CCO), and Ca2+-ATPase declined to a certain extent at ambient temperature, while they showed higher activities at low temperature, which may be related to lower membrane lipid peroxidation at low temperature. Higher Ca2+ content at ambient temperature may be responsible for impairment of mitochondrial function, thus, leading to fruit senescence. The results showed that under low temperature condition, the low accumulation of ROS and the low level of membrane lipid peroxidation could maintain the function of mitochondria that would help to delay the senescence of peach fruits. These suggested a close relationship existed between ROS metabolism and mitochondrial respiration. It can be inferred that the low temperature helps to delay senescence of peach fruits via suppression of ROS and related enzymes, maintain better homeostasis of Ca2+ in mitochondria and thus better mitochondrial functions.KAN Juan WANG Hong-mei JIN Chang-hai 2011Agricultural Sciences in China2011,10,1:28
2Risk factors for early recurrence of small hepatocellular carcinoma after curative resection显示文摘BACKGROUND:Poorer prognosis is seen in patients with hepatocellular carcinoma (HCC) after curative hepatic resection with early recurrence (≤1 year) than in those with late recurrence (>1 year).This study aimed to identify risk factors for postoperative early recurrence of small HCC (≤3 cm in diameter).METHODS:The study population consisted of 158 patients who underwent curative resection for small HCC between January 2002 and July 2004.Risk factors for early recurrence were analyzed.RESULTS:Thirty-three (20.8%) patients developed early recurrence after surgery.Univariate analysis showed the following significant risk factors for early recurrence in small HCC:serum alpha-fetoprotein (AFP) level >100 ng/ml,lack of tumor capsule formation,microscopic vascular invasion,high Edmonson-Steiner grades,and cytokeratin-19 (CK-19) expression (P<0.05).Multivariate stepwise logistic regression analysis showed that serum AFP level >100 ng/ml (odds ratio 2.561,95% confidence interval 1.057 to 6.206,P=0.037) and microscopic vascular invasion (odds ratio 4.549,95% confidence interval 1.865 to 11.097,P=0.001) were independent factors.CONCLUSIONS:Postoperative early recurrence is related to serum AFP level >100 ng/ml and microscopic vascular invasion in patients with small HCC.Adjuvant therapy and careful follow-up are required for patients with these risk factors.Zhou, Yan-Ming Yang, Jia-Mei Li, Bin Yin, Zheng-Feng Xu, Feng Wang, Bin Xu, Wen Kan, Tong 2010Hepatobiliary & Pancreatic Diseases International2010,9,1:24
3Identification of coastal wetlands of international importance for waterbirds:a review of China Coastal Waterbird Surveys 2005–2013显示文摘Background:China's coastal wetlands belong to some of the most threatened ecosystems worldwide.The loss and degradation of these wetlands seriously threaten waterbirds that depend on wetlands.Methods:The China Coastal Waterbird Census was organized by volunteer birdwatchers in China's coastal region.Waterbirds were surveyed synchronously once every month at 14 sites,as well as irregularly at a further 18 sites,between September 2005 and December 2013.Results:A total of 75 species of waterbirds met the 1 % population level Ramsar listing criterion at least once at one site.The number of birds of the following species accounted for over 20 % of the total flyway populations at a single site:Mute Swan(Cygnus olor),Siberia Crane(Grus leucogeranus),Far Eastern Oystercatcher(Haematopus osculans),Bar-tailed Godwit(Limosa lapponica),Spotted Greenshank(Tringa guttifer),Great Knot(Calidris tenuirostris),Spoon-billed Sandpiper(Calidris pygmeus),Saunders' s Gull(Larus saundersi),Relict Gull(Larus relictus),Great Cormorant(Phalacrocorax carbo),Eurasian Spoonbill(Platalea leucorodia),Black-faced Spoonbill(Platalea minor) and Dalmatian Pelican(Pelecanus crispus).A total of 26 sites supported at least one species of which their number met the1 % criterion.Forty-two species met the 1 % criterion in the Yellow River Delta,Shandong;29 at the Cangzhou coast,Hebei and 26 species at the Lianyungang coast,Jiangsu.Conclusions:The results highlight the international importance of China's coastal wetlands for waterbirds.This study also demonstrates that participation of local birdwatchers in waterbird surveys results in data that are invaluable not only for understanding the current status of waterbirds in China's coastal regions but also for waterbird conservation and management.Qingquan Bai Jianzhong Chen Zhihong Chen Guotai Dong Jiangtian Dong Wenxiao Dong Vivian Wing Kan Fu Yongxiang Han Gang Lu Jing Li Yang Liu Zhi Lin Derong Meng Jonathan Martinez Guanghui Ni Kai Shan Renjie Sun Suixing Tian Fengqin Wang Zhiwei Xu Yat-tung Yu Jin Yang Zhidong Yang Lin Zhang Ming Zhang Xiangwu Zeng 2015Chinese Birds2015,,3:20
4Upregulation of Chemokine CXCL12 in the Dorsal Root Ganglia and Spinal Cord Contributes to the Development and Maintenance of Neuropathic Pain Following Spared Nerve Injury in Rats显示文摘Emerging evidence indicates that CXCL12/CXCR4 signaling is involved in chronic pain. However, few studies have systemically assessed its role in direct nerve injury-induced neuropathic pain and the underlying mechanism. Here, we determined that spared nerve injury(SNI)increased the expression of CXCL12 and its cognate receptor CXCR4 in lumbar 5 dorsal root ganglia(DRG)neurons and satellite glial cells. SNI also induced longlasting upregulation of CXCL12 and CXCR4 in the ipsilateral L4–5 spinal cord dorsal horn, characterized by CXCL12 expression in neurons and microglia, and CXCR4 expression in neurons and astrocytes. Moreover, SNIinduced a sustained increase in TNF-a expression in the DRG and spinal cord. Intraperitoneal injection(i.p.) of the TNF-a synthesis inhibitor thalidomide reduced the SNI-induced mechanical hypersensitivity and inhibited the expression of CXCL12 in the DRG and spinal cord.Intrathecal injection(i.t.) of the CXCR4 antagonist AMD3100, both 30 min before and 7 days after SNI,reduced the behavioral signs of allodynia. Rats given an i.t.or i.p. bolus of AMD3100 on day 8 of SNI exhibited attenuated abnormal pain behaviors. The neuropathic pain established following SNI was also impaired by i.t. administration of a CXCL12-neutralizing antibody. Moreover,repetitive i.t. AMD3100 administration prevented the activation of ERK in the spinal cord. The mechanical hypersensitivity induced in na?¨ve rats by i.t. CXCL12 was alleviated by pretreatment with the MEK inhibitor PD98059. Collectively, our results revealed that TNF-a might mediate the upregulation of CXCL12 in the DRG and spinal cord following SNI, and that CXCL12/CXCR4 signaling via ERK activation contributes to the development and maintenance of neuropathic pain.Liying Bai Xinru Wang Zhisong Li Cunlong Kong Yonghui Zhao Jun-Liang Qian Quancheng Kan Wei Zhang Ji-Tian Xu 2016Neuroscience Bulletin2016,32,1:20
5STUDY ON THE SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOYS BY DSC显示文摘Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB andFeCuNbSiB were studied by isothermal and non-isothermal DSC technique. It wasfound that the shock wave crystallization is very perfect, the fraction crystallized isvery close to 100%, though the period of crystallization is very short, only about10-4-10-6 s. Their produced phases differ from the parent phase in structure andcomposition. The high velocity of the transformation is very difficult to explain by thediffusion theory of solid state phase transition.H. Y. Zhao, H. Wang, Q.J. Liu, J.D. Kan and Z.Q. LiuDepartment of Materials Science and Engineering, Yunnan University, Kunming 650091, China 2002Acta Metallurgica Sinica(English Letters)2002,15,5:18
6Efficacy and safety of sunitinib in the treatment of metastatic renal cell carcinoma显示文摘背景酷氨酸 kinase 禁止者(TKI ) sunitinib,为变形肾的房间癌(RCC ) 的第一线治疗的首先指向的代理人,指向脉管的 endothelial 生长因素(VEGF ) 小径。如果高血压是有效预兆的 factor.Methods,这研究的目的是在对待变形清楚房间的 RCC 调查 sunitinib 的功效和安全并且证实有变形 RCC 的 36 个病人的一个总数在 2008 年 6 月和 2010 年 12 月之间被注册。在他们之中, 29 个案例是第一线治疗, 7 个案例在首要的 cytokine 或 sorafinib 治疗上的前进。所有病人的病理被证实在清楚的房间类型占优势。Sunitinib 单音治疗在每日的口头的治疗的重复 6 星期的周期被管理 4 个星期,到 2 个星期列在后面离开在 34 个病人;并且 3 个病人连续地与 37.5 mg/d 被管理直到疾病前进或不能接受的毒性发生了。全面反应率和安全被评估。我们根据中部的后续是的血压 level.Results 把病人划分了成组 A 和组 B 15 个月(10 个周期,范围 1.5-30.0 月(1-20 周期)) 。十个病人(29.4 ) 完成了部分回答(PR ) ;23 个病人(67.6 ) 表明了持续 2 个周期的稳定的疾病(SD ) 。十七个病人(50 ) 在后续期间得了进步疾病(PD ) 。中部的没有前进的幸存(PFS ) 是 15 个月(范围 3.0-28.5 ) 月。9 个病人的一个总数死了;全面幸存没被到达;死亡病人的中部的幸存时间是 13 个月(范围 7-24 ) 月。最普通的不利事件是手脚症候群(77.8 ) , thrombocytopenia (75.0 ) ,高血压(61.1 ) 和腹泻(46.0 ) 。最不利的事件由治疗打断是可逆的。22 个病人(61.1 ) 得了高血压;并且高血压与很长时间被联系到疾病前进和长全面的幸存(P=0.004, 0.000,分别地) 这研究的结果表明的 .Conclusions 功效和可管理的不利事件与变形清楚的房间 RCC 为病人在首要或第二线的治疗作为一个单个代理人 sunitinib 介绍。进一步,联系 sunitinib 的高血压可以是为在变形 RCC 的治疗功效的一个强壮的预兆的标记。LI Xue-song WU Xiang ZHAO Peng-ju HUANG Li-hua SONG Yi GONG Kan SHEN Cheng YU Wei SONG Gang ZHAO Zheng ZHANG Zheng ZHANG Qian WANG Gang HE Zhi-song ZHOU Li-qun JIN Jie 2011Chinese Medical Journal2011,,18:17
7Prognostic factors in the surgical treatment of caudate lobe hepatocellular carcinoma显示文摘AIM:To evaluate the short-and long-term outcomes of liver resection for caudate lobe hepatocellular carcinoma (HCC).METHODS:We retrospectively analyzed 114 consecutive patients with HCC,originating from the caudate lobe,who underwent resection between January 2001 and January 2007.Univariate and multivariate analyses were performed on several clinicopathologic variables to determine the factors affecting long-term outcome and intrahepatic recurrence.RESULTS:Overall mortality and morbidity were 0% and 18%,respectively.After a median follow-up of 31 mo (interquartile range,11-66 mo),tumor recurrence had occurred in 76 patients (66.7%).The 1-,3-,and 5-year disease-free survival rates were 65.7%,38.1%,and 18.4%,respectively.The 1-,3-,and 5-year overall survival rates were 76.1%,54.7%,and 31.8%,respectively.Univariate analysis showed that subsegmental location of the tumor (45.7% vs 16.2%,P=0.01),liver cirrhosis (12.3% vs 47.9%,P=0.03),surgical margin (18.5% vs 54.6%,P=0.04),vascular invasion (37.9% vs 23.2%,P=0.04) and extended caudate resection (42.1% vs 15.4%,P=0.04) were related to poorer long-term survival.Multivariate analysis showed that only subsegmental location of the tumor,liver cirrhosis and surgical margin were significant independent prognostic factors.CONCLUSION:Hepatectomy was an effective treatment for HCC in the caudate lobe.The subsegmental location of the tumor,liver cirrhosis and surgical margin affected long-term survival.Peng Liu,Jia-Mei Yang,Wen-Yang Niu,Tong Kan,Feng Xie,Dian-Qi Li,Ye Wang,Yan-Ming Zhou,Department of Special Treatment and Liver Transplantation,Eastern Hepatobiliary Surgery Hospital,Second Military Medical University,Shanghai 200438,China Peng Liu,Department of Hepatobiliary Surgery,Navy General Hospital,Beijing 100037,China 2010World Journal of Gastroenterology2010,16,9:15
8Altered Lignin Biosynthesis Improves Cellulosic Bioethanol Production in Transgenic Maize Plants Down-Regulated for Cinnamyl Alcohol Dehydrogenase显示文摘Cinnamyl 白酒脱氢酶(CAD ) 是涉及 monolignol 生合成的最后步的关键酶。木质素生产上的 CAD 下面规定的效果在玉米通过一条转基因的途径被调查。转基因的 CAD-RNAi 植物显示出在房间墙作文取决于分析织物和表演改变的酶的减小的不同的度。没有影响全部的木质素内容, CAD-RNAi 茎的细胞墙在 S-to-G 比率与细微减小包含木质素聚合物。另外,这些房间墙积累纤维素和 arabinoxylans 的高水平。相反, CAD-RNAi 中肋的房间墙在全部的木质素内容并且房间墙多糖介绍减小。,在 vitro degradability,试金显示出那到不同程度, CAD 活动的压抑导致的变化生产了中肋和比野类型的植物更可能减解的茎。在这块地里种的 CAD-RNAi 植物介绍了野类型的显型并且生产了干燥生物资源的更高的数量。有纤维质的 bioethanol 试金表明 CAD-RNAi 生物资源生产了乙醇的高水平与相比野类型,使 CAD 成为一个好目标两个都改进玉米 lignocellulosic 生物资源的营养、精力充沛的值。Silvia Fornale Montserrat Capellades Antonio Encina Kan Wang Sami Irara Catherine Lapierre Katia Ruel Jean-Paul Joseleaue Jordi Berenguer Pere Puigdomenech Joan Rigau David Caparros-Ruiz 2012Molecular Plant2012,5,4:14
9Circulating tumor DNA 5-hydroxymethylcytosine as a novel diagnostic biomarker for esophageal cancer显示文摘Xin Tian Baofa Sun Chuanyuan Chen Chunchun Gao Ji Zhang XingYu Lu Linchen Wang Xiangnan Li Yurong Xing Ruijuan Liu Xiao Han Zheng Qi Xiaojian Zhang Chuan He Dali Han Yun-Gui Yang Quancheng Kan 2018Cell Research2018,28,5:12
10Research advances in the treatment of Alzheimer's disease with polysaccharides from traditional Chinese medicine显示文摘Alzheimer's disease(AD) is a neurodegenerative disorder characterized by the loss of patients' memory and their cognitive abilities and the mechanism is not completely clear. Although a variety of drugs have been approved for the AD treatment, substances which can prevent and cure AD are still in great need. The effect of polysaccharides from traditional Chinese medicine(TCM) on anti-AD has gained great progress and attained more and more attention in recent years. In this review, research advances in TCM-polysaccharides on AD made in this decade are summarized.LIU Qin WANG Shun-Chun DING Kan 2017Chinese Journal of Natural Medicines2017,15,9:12
11MAGNETIC RESONANCE IMAGING CHARACTERISTICS AND SURGICAL RESULTS OF ADRENOCORTICOTROPIN-SECRETING PITUITARY ADENOMAS显示文摘Objective To evaluate magnetic resonance imaging(MRI)characteristics and surgical results of adrenocorticotropin(ACTH)-secreting pituitary adenomas.Methods MRI characteristics and relationship between MRI positive rate and surgical results of 266 patients with pathologically confirmed Cushing's disease were analyzed retrospectively.All patients underwent thin-section sagittal and coronal scans of the pituitary gland before and after administration of gadolinium-diethylene triamine pentaacetic acid(Gd-DTPA)on a 1.5 Tesla MRI scanner,and dynamic enhanced MRI was performed in 39 patients.All patients underwent transsphenoidal adenomectomy.Endocrinological examinations and assessments were performed.Results Preoperative MRI revealed normal results in 41(15.4%)cases,microadenoma in 179(67.3%),macroadenoma in 42(15.8%),and huge adenoma in 4(1.5%).Pituitary apoplexy was found in 13(4.9%)cases.Positive rate of ACTH-secreting adenomas was 84.6%(225/266)on MRI scans,and that of small microadenomas was 87.2%(34/39)on dynamic enhanced MRI scans.Preoperative endocrinological tests of 199 cases supported the diagnosis of typical Cushing's disease,while the other 67 cases had atypical endocrinological results.The endocrinological cure rate,remission rate,and inefficacy rate were 85.7%,7.9%,and 6.4%,respectively.There was no difference in the initial endocrinological cure rate between the patients with positive and normal MRI results(90% vs.87.8%,P=0.904).Conclusions Enhanced coronal pituitary MRI is helpful for preoperative localization of ACTH-secreting pituitary microadenoma.Dynamic enhanced MRI may improve detection rate of microadenoma.There is no marked difference in the surgical results for patients with preoperative MRI results indicating presence or absence of microadenoma.Bing Xing Kan Deng Zu-yuan Ren Chang-bao Su Ren-zhi Wang Yi Yang Wen-bin Ma Yong-ning Li 2008Chinese Medical Sciences Journal2008,23,1:9
12Meta-analysis of the efficacy of probiotics in Helicobacter pylori eradication therapy显示文摘AIM:To evaluate the role of probiotics in the standard triple Helicobacter pylori therapy.METHODS:In this meta-analysis,we investigated the efficacy of probiotics in a standard triple H.pylori therapy in adults.Searches were mainly conducted in MEDLINE/Pub Med,EMBASE,and the Cochrane Central Register of Controlled Trials.Fourteen studies met our criteria,and the quality of these studies was assessedusing the Jadad scale.We used STATA version 12.0to extract data and to calculate the odds ratios(ORs),which are presented with the corresponding 95%confidence intervals(CIs).The data are presented as forest plots.RESULTS:The pooled ORs for the eradication rates calculated by intention-to-treat analysis and perprotocol analysis in the probiotic group vs the control group were 1.67(95%CI:1.38-2.02)and 1.68(95%CI:1.35-2.08),respectively,using the fixed-effects model.The sensitivity of the Asian studies was greater than that of the Caucasian studies(Asian:OR=1.78,95%CI:1.40-2.26;Caucasian:OR=1.48,95%CI:1.06-2.05).The pooled OR for the incidence of total adverse effects was significantly lower in the probiotic group(OR=0.49,95%CI:0.26-0.94),using the random effects model,with significant heterogeneity(I2=85.7%).The incidence of diarrhea was significantly reduced in the probiotic group(OR=0.21,95%CI:0.06-0.74),whereas the incidence of taste disorders,metallic taste,vomiting,nausea,and epigastric pain did not differ significantly between the probiotic group and the control group.CONCLUSION:Supplementary probiotic preparations during standard triple H.pylori therapy may improve the eradication rate,particularly in Asian patients,and the incidence of total adverse effects.Rong Zhu Kan Chen Yuan-Yuan Zheng Hua-Wei Zhang Jun-Shan Wang Yu-Jing Xia Wei-Qi Dai Fan Wang Miao Shen Ping Cheng Yan Zhang Cheng-Fen Wang Jing Yang Jing-Jing Li Jie Lu Ying-Qun Zhou Chuan-Yong Guo 2014World Journal of Gastroenterology2014,20,47:9
13A Review on the 3D Printing of Functional Structures for Medical Phantoms and Regenerated Tissue and Organ Applications显示文摘医学模型或模具已广泛应用于医学培训和医患互动领域,同时也日益应用于手术规划、医学计算模型、算法核实和验证以及医疗器械的开发等方面。这种新应用需要高保真度、患者特异性及模拟组织结构的医学模具,其不仅能够模拟人体器官的几何结构,而且还具有器官的功能。随着三维(3D)打印和3D生物打印技术的快速发展,许多研究人员已经开始使用增材制造技术来生产具有多种功能的医学模具。本文综述了3D打印和3D生物打印技术在制作功能性医学模具和生物结构方面的应用。特别讨论了3D打印功能性医学模具(即组织模拟医学模具、放射性医学模具和生理医学模具)及被用于再生组织和器官的3D生物打印模具的制备(即混合模式支架材料、可转换支架和集成传感器)工艺、发展现状以及未来发展趋势。Kan Wang Chia-Che Ho Chuck Zhang Ben Wang 2017Engineering2017,3,5:9
143D C_f/SiBCN composites prepared by an improved polymer infiltration and pyrolysis显示文摘Using liquid poly(methylvinyl)borosilazanes(PMVBSZ)as precursor,carbon fiber reinforced SiBCN matrix composites(C_f/SiBCN)were fabricated by a modified polymer infiltration and pyrolysis(PIP)process.With dicumyl peroxide added as cross-linking agent,the PMVBSZ could be solidified at a low temperature of 120℃,leading to a high ceramic yield of~70%.The cross-linking mechanism and ceramization processes of the precursor were investigated in detail.Moreover,a modified infiltration technology was developed,which improved the efficiency and protected the precursor against moist air during PIP.Consequently,the obtained C_f/SiBCN composites had an oxygen content of around 1.22 wt%.Benefiting from the high ceramic yield and high efficiency of the modified PIP,C_f/SiBCN composites with an open porosity of~10%and uniform microstructure were obtained after only 7 cycles of PIP.The flexural strength and fracture toughness of the derived C_f/SiBCN composites were 371 MPa and 12.9 MPa·m^(1/2),respectively.This work provides a potential route for the fabrication of high performance C_f/SiBCN composites.Qi DING Dewei NI Zhen WANG Hao ZHONG Hongda WANG Haijun ZHOU Yanmei KAN Shaoming DONG 2018Journal of Advanced Ceramics2018,7,3:9
15One-pot hydrothermal fabrication of α-Fe_2O_3@C nanocomposites for electrochemical energy storage显示文摘A facile hydrothermal method was developed for the preparation of Fe_2O_3@C nanocomposites using FeCl_3·6H_2O as iron source and glucose as carbon source under alkaline condition. The morphology and structure of the as-prepared product were identified by transmission electron microscopy(TEM), high resolution transmission electron microscopy(HRTEM), field-emission scanning electron microscopy(FESEM),X-ray diffraction(XRD), Raman spectroscopy, Fourier Transform infrared spectroscopy(FTIR), and thermogravimetric analysis(TGA). The as-prepare α-Fe_2O_3@C nanocomposites were employed for supercapacitor electrode material. The synergistic combination of carbon electrical double-layer capacitance and α-Fe_2O_3 pseudo-capacitance established such nanocomposites as versatile platform for high performance supercapacitors. The synthesis method developed here is expected to obtain other metal oxide/carbon composite.Maiyong Zhu Jiarui Kan Jianmei Pan Wenjie Tong Qi Chen Jiacheng Wang Songjun Li 2019Journal of Energy Chemistry2019,28,1:9
16Effects of dynamic ventilatory factors on ventilatorinduced lung injury in acute respiratory distress syndrome dogs显示文摘BACKGROUND:Mechanical ventilation is a double-edged sword to acute respiratory distress syndrome(ARDS) including lung injury,and systemic inflammatory response high tidal volumes are thought to increase mortality.The objective of this study is to evaluate the effects of dynamic ventilatory factors on ventilator induced lung injury in a dog model of ARDS induced by hydrochloric acid instillation under volume controlled ventilation and to investigate the relationship between the dynamic factors and ventilator-induced lung injuries(VILI) and to explore its potential mechanisms.METHODS:Thirty-six healthy dogs were randomly divided into a control group and an experimental group.Subjects in the experimental group were then further divided into four groups by different inspiratory stages of flow.Two mL of alveolar fluid was aspirated for detection of IL-8 and TNF-α.Lung tissue specimens were also extracted for total RNA,IL-8 by western blot and observed under an electronic microscope.RESULTS:IL-8 protein expression was significantly higher in group B than in groups A and D.Although the IL-8 protein expression was decreased in group C compared with group B,the difference was not statistically significant.The TNF-α ray degree of group B was significantly higher than that in the other groups(P<0.01),especially in group C(P>0.05).The alveolar volume of subjects in group B was significantly smaller,and cavity infiltration and cell autolysis were marked with a significant thicker alveolar septa,disorder of interval structures,and blurring of collagenous and elastic fiber structures.A large number of necrotic debris tissue was observed in group B.CONCLUSION:Mechanical ventilation with a large tidal volume,a high inspiratory flow and a high ventilation frequency can cause significant damage to lung tissue structure.It can significantly increase the expression of TNF-α and IL-8 as well as their mRNA expression.Furthermore,the results of our study showed that small tidal ventilation significantly reduces the release of proinflammatory media.This finding suggests that greater deterioration in lung injury during ARDS is associated with high inspiratory flow and high ventilation rate.Rui-lan Wang Kan Xu Kang-long Yu Xue Tang Hui Xie 2012World Journal of Emergency Medicine2012,3,4:8
17Association of HER2 status with prognosis in gastric cancer patients undergoing R0 resection: A large-scale multicenter study in China显示文摘AIM: To determine whether the positive status of human epidermal growth receptor 2(HER2) can be regarded as an effective prognostic factor for patients with gastric cancer(GC) undergoing R0 resection.METHODS: A total of 1562 GC patients treated by R0 resection were recruited. HER2 status was evaluated in surgically resected samples of all the patients using immunohistochemical(IHC) staining. Correlations between HER2 status and clinicopathological characteristics were retrospective analyzed. Hazard ratios(HRs) and 95% confidence intervals(CIs) were estimated using Cox proportional hazard model, stratified by age, gender, tumor location and tumor-nodemetastasis(TNM) stage, with additional adjustment for potential prognostic factors.RESULTS: Among 1562 patients, 548(positive rate = 35.08%, 95%CI: 32.72%-37.45%) were HER2 positive. Positive status of HER2 was significantly correlated with gender(P = 0.004), minority(P < 0.001), tumor location(P = 0.001), pathological grade(P < 0.001), TNM stage(P < 0.001) and adjuvant radiotherapy(74.67% vs 23.53%, P = 0.011). No significant associations were observed between HER2 status and disease free survival(HR = 0.19, 95%CI: 0.96-1.46, P = 0.105) or overall survival(HR = 1.19, 95%CI: 0.96-1.48, P = 0.118) using multivariate analysis, although stratified analyses showed marginally statistically significant associations both in disease free survival and overall survival, especially among patients aged < 60 years or with early TNM stages(Ⅰ and Ⅱ). Categorical age, TNM stage, neural invasion, and adjuvant chemotherapy were, as expected, independent prognostic factors for both disease free survival and overall survival. CONCLUSION: The positive status of HER2 based on IHC staining was not related to the survival in patients with GC among the Chinese population.Guo-Shuang Shen Jiu-Da Zhao Jun-Hui Zhao Xin-Fu Ma Feng Du Jie Kan Fa-Xiang Ji Fei Ma Fang-Chao Zheng Zi-Yi Wang Bing-He Xu 2016World Journal of Gastroenterology2016,22,23:8
18Dietary encapsulated essential oils and organic acids mixture improves gut health in broiler chickens challenged with necrotic enteritis显示文摘Background:The poultry industry is in need of effective antibiotic alternatives to control outbreaks of necrotic enteritis(NE)due to Clostridium perfringens.In the present study,we investigated the effects of dietary supplementation with a blend of encapsulated essential oils and organic acids(BLJ)on growth performance and gut health using a coinfection model of NE in broiler chickens.Methods:Two hundred and eighty-eight one-day-old male Arbor Acres broiler chicks were randomly assigned using a 2×2 factorial design into two groups fed either 0 or 500 mg/kg dietary BLJ and co-challenged(or not challenged for the control)with Eimeria spp./C.perfringens.Results:Infected birds fed the BLJ-supplemented diet exhibited an improved feed conversion ratio throughout the trial(P<0.01),a higher villus height and villus height/crypt depth ratio,and reduced intestinal C.perfringens counts,liver C.perfringens carriage,gut lesion scores and serum fluorescein isothiocyanate dextran(FITC-D)concentrations at 7 d postinfection compared with those of birds without BLJ supplementation(P<0.05).NE-infected birds fed BLJ exhibited significantly upregulated claudin-1 and IGF-2 mRNA levels(P<0.05),increased A20 mRNA expression and significantly downregulated TRAF-6,TNFSF15 and TOLLIP mRNA levels in the jejunum at 7 d post-infection compared with those in birds without BLJ supplementation(P<0.05).Compared with the uninfected and untreated birds,the uninfected birds fed BLJ displayed increased relative abundances of Lactobacillus and Coprococcus but reduced Rikenellaceae levels.Compared with the unsupplemented NE-challenged birds,infected birds fed BLJ showed an increased relative abundance of Unclassified_Lachnospiraceae and a significantly decreased relative abundance of Erysipelotrichaceae.Conclusion:BLJ supplementation improved growth performance and gut health in NE-infected broiler chickens by strengthening the intestinal barrier function,positively modulating the gut microbiota community and differentially regulating intestinal immune responses.Our results also suggested that adding BLJ effectively controlled NE infections after experimental Eimeria and Clostridium perfringens coinfection.Van Hieu Pham Liugang Kan Jinyu Huang Yanqiang Geng Wenrui Zhen Yuming Guo Waseem Abbas Zhong Wang 2020Journal of Animal Science and Biotechnology2020,11,3:8
19Mechanisms and clinical significance of quality of final kissing balloon inflation in patients with true bifurcation lesions treated by crush stenting technique显示文摘背景为吻的出现负责的机制未得到满足(KUS ) 在古典压碎 stenting 以后结果仍然保持不清楚。现在的学习瞄准了分析机制和 KUS 的临床的意义。有真分叉损害的 213 个病人与古典压碎 stenting 和最后的吻汽球通货膨胀( FKBI )对待的方法根据分支给视觉评价换新电线由估计了的方面的位置被分到上面、中间、更低的组,量的冠的分析( QCA )和 intravascular 超声( IVUS )。Angiographic 后续在 12 months.Results 被索引上面的组被 55.53 的一个更大的分叉角度描绘吗?ZHANG Jun-jie CHEN Shao-liang YE Fei YANG Song KAN Jing LIU Yue-qiang ZHOU Yong SUN Xue-wen ZHANG Ai-ping WANG Xin CHEN Jack 2009Chinese Medical Journal2009,,18:8
20Diluted ferromagnetic semiconductor(LaCa)(ZnMn)SbO isostructural to “1111” type iron pnictide superconductors显示文摘We report discovery of ferromagnetism in(LaCa)(ZnMn)SbO isostructural to the well-studied iron-based superconductor LaFeAs(O1 xFx).Spin is induced by partial substitution of Mn2+for Zn2+,while charge is induced by substitution of Ca2+for La3+within the parent compound LaZnSbO.Ferromagnetism with Curie temperature(TC)is observed up to 40 K at the spin doping 0.15 by introducing Mn2+into the Zn2+sites for(La0.95Ca0.05)(Zn1 xMnx)SbO.The Hall coefficient measurement indicates p-type carrier for(La0.95Ca0.05)(Zn0.9Mn0.1)SbO with concentration of n^1020cm 3showing anomalous Hall effect below TC.HAN Wei ZHAO Kan WANG XianCheng LIU QingQing NING FanLong DENG Zheng LIU Ying ZHU JinLong DING Cui MAN HuiYuan JIN ChangQing 2013Science China(Physics,Mechanics & Astronomy)2013,56,11:8
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