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1The role of whole brain radiation therapy in the management of newly diagnosed brain metastases: a systematic review and evidence-based clinical practice guideline显示文摘Gaspar LE Mehta MP Patchell RA Burri SH Robinson PD Morris RE Ammirati M Andrews DW Asher AL Cobbs CS Kondziolka D Linskey ME Loeffler JS McDermott M Mikkelsen T Olson JJ Paleologos NA Ryken TC Kalkanis SN. 2010中国神经肿瘤杂志2010,8,1:98
2Adverse events with bismuth salts for Helicobacter pylori eradication:Systematic review and meta-analysis显示文摘AIM: To assess the safety of bismuth used in Helico- bacter pylori (H pylori) eradication therapy regimens. METHODS: We conducted a systematic review and meta-analysis. MEDLINE and EMBASE were searched (up to October 2007) to identify randomised controlled tri- als comparing bismuth with placebo or no treatment, or bismuth salts in combination with antibiotics as part of eradication therapy with the same dose and duration of antibiotics alone or, in combination, with acid suppres- sion. Total numbers of adverse events were recorded. Data were pooled and expressed as relative risks with 95% confidence intervals (CI). RESULTS: We identified 35 randomised controlled tri- als containing 4763 patients. There were no serious adverse events occurring with bismuth therapy. There was no statistically significant difference detected in total adverse events with bismuth [relative risk (RR) = 1.01; 95% CI: 0.87-1.16], specific individual adverse events, with the exception of dark stools (RR = 5.06; 95% CI: 1.59-16.12), or adverse events leading to withdrawal of therapy (RR = 0.86; 95% CI: 0.54-1.37). CONCLUSION: Bismuth for the treatment of H pylori is safe and well-tolerated. The only adverse event oc- curring significantly more commonly was dark stools.Alexander C Ford Peter Malfertheiner Monique Giguère José Santana Mostafizur Khan Paul Moayyedi 2008World Journal of Gastroenterology2008,14,48:62
3Gut microbiota imbalance and colorectal cancer显示文摘The gut microbiota acts as a real organ. The symbiotic interactions between resident micro-organisms and the digestive tract highly contribute to maintain the gut homeostasis. However, alterations to the microbiome caused by environmental changes(e.g., infection, diet and/or lifestyle) can disturb this symbiotic relationship and promote disease, such as inflammatory bowel diseases and cancer. Colorectal cancer is a complex association of tumoral cells, non-neoplastic cells and a large amount of micro-organisms, and the involvement of the microbiota in colorectal carcinogenesis is becoming increasingly clear. Indeed, many changes in the bacterial composition of the gut microbiota have been reported in colorectal cancer, suggesting a major role of dysbiosis in colorectal carcinogenesis. Some bacterial species have been identified and suspected to play a role in colorectal carcinogenesis, such as Streptococcus bovis, Helicobacter pylori, Bacteroides fragilis, Enterococcus faecalis, Clostridium septicum, Fusobacterium spp. and Escherichia coli. The potential pro-carcinogenic effects of these bacteria are now better understood. In this review, we discuss the possible links between the bacterial microbiota and colorectal carcinogenesis, focusing on dysbiosis and the potential pro-carcinogenic properties of bacteria, such as genotoxicity and other virulence factors, inflammation, host defenses modulation, bacterial derived metabolism, oxidative stress and anti-oxidative defenses modulation. We lastly describe how bacterial microbiota modifications could represent novel prognosis markers and/or targets for innovative therapeutic strategies.Johan Gagnière Jennifer Raisch Julie Veziant Nicolas Barnich Richard Bonnet Emmanuel Buc Marie-Agnès Bringer Denis Pezet Mathilde Bonnet 2016World Journal of Gastroenterology2016,22,2:76
4Endoscopic ultrasound elastography for evaluation of lymph nodes and pancreatic masses:A multicenter study显示文摘AIM:To evaluate the ability of endoscopic ultrasound(EUS) elastography to distinguish benign from malignant pancreatic masses and lymph nodes.METHODS:A multicenter study was conducted and included 222 patients who underwent EUS examination with assessment of a pancreatic mass(n=121) or lymph node(n=101).The classification as benign or malignant,based on the real time elastography pattern,was compared with the classif ication based on the B-mode EUS images and with the fi nal diagnosis obtained by EUS-guided fi ne needle aspiration(EUS-FNA) and/or by surgical pathology.An interobserver study was performed.RESULTS:The sensitivity and specificity of EUS elastography to differentiate benign from malignant pancreatic lesions are 92.3% and 80.0%,respectively,compared to 92.3% and 68.9%,respectively,for the conventional B-mode images.The sensitivity and specificity of EUS elastography to differentiate benign from malignant lymph nodes was 91.8% and 82.5%,respectively,compared to 78.6% and 50.0%,respectively,for the B-mode images.The kappa coefficient was 0.785 for the pancreatic masses and 0.657 for the lymph nodes.CONCLUSION:EUS elastography is superior compared to conventional B-mode imaging and appears to be able to distinguish benign from malignant pancreatic masses and lymph nodes with a high sensitivity,specificity and accuracy.It might be reserved as a second line examination to help characterise pancreatic masses after negative EUS-FNA and might increase the yield of EUS-FNA for lymph nodes.Marc Giovannini Botelberge Thomas Bories Erwan Pesenti Christian Caillol Fabrice Esterni Benjamin Monges Geneviève Arcidiacono Paolo Deprez Pierre Yeung Robert Schimdt Walter Schrader Hanz Szymanski Carl Dietrich Christoph Eisendrath Pierre Van Laethem Jean-Luc Devière Jacques Vilmann Peter Saftoiu Andrian 2009World Journal of Gastroenterology2009,15,13:48
5血管内超声去肾交感神经术治疗高血压:一项多中心,国际,单盲,随机,假手术对照试验显示文摘早期研究表明,基于射频的去肾交感神经术可降低中度高血压患者的血压。研究者研究了在没有使用抗高血压药物的情况下,使用血管内超声去。肾交感神经术是否会降低高血压患者的动态血压。刘青 叶鹏 Azizi M Schmieder RE Mahfoud F Weber MA Daemen J Davies J Basile J Kirtane AJ Wang Y Lobo MD Saxena M Feyz L Rader F Lurz P Sayer J Sapoval M Levy T Sanghvi K Abraham J Sharp ASP Fisher NDL Bloch MJ Reeve-Stoffer H Coleman L Mullin C Mauri L 2018中华高血压杂志2018,26,10:27
6欧洲骨质疏松和骨关节炎临床及经济学协会(ESCEO)和中国骨关节炎领域专家联合发表声明:ESCEO膝骨关节炎治疗规则应同样适用于中国患者显示文摘2014年12月,欧洲骨质疏松和骨关节炎临床及经济学协会(ESCEO)发布了膝骨关节炎(OA)治疗规则。此篇论文提供了中国OA专家将治疗规则应用于中国临床所做的评估和认可,目的是就如何为膝关节OA患者制定治疗流程提出切实可行的建议。在治疗的第1步,建议采用对症的缓慢起效骨关节炎治疗药物(SYSADOA)作为药物维持疗法,关于SYSADOA只有处方药结晶型硫酸氨基葡萄糖(p CGS)和处方药硫酸软骨素提供了高质量的证据。同时可合并扑热息痛等非甾体抗炎药物(NSAIDs),但只能作为紧急镇痛药物。外用非甾体抗炎药(NSAIDs)也可对症治疗。口服NSAIDs在第2步持续症状的高级治疗中维持核心作用。但是,口服NSAIDs在胃肠道和心血管安全性方面存在较大差异性。关节内注射透明质酸可产生持续临床益处,接受一个治疗疗程后,效应可持续长达6个月。作为手术之前的最后一步,缓释型曲马多(一种较弱的阿片类物质)可产生持续镇痛作用,且耐受性较好。张志毅 段新旺 古洁若 黄慈波 姜林娣 林进 刘湘源 李泽光 马丽 齐文成 钱先 王吉波 王美美 武丽君 伍沪生 肖卫国 郑毅 张卓莉 Olivier Bruyère Jean-Yves Reginster Cyrus Cooper 2016中国实用内科杂志2016,36,9:20
7Peripheral nerve regeneration and intraneural revascularization显示文摘Peripheral nerves are particularly vulnerable to injuries and are involved in numerous pathologies for which specific treatments are lacking. This review summarizes the pathophysiological features of the most common traumatic nerve injury in humans and the different animal models used in nerve regeneration studies. The current knowledge concerning Wallerian degeneration and nerve regrowth is then described. Finally, the involvement of intraneural vascularization in these processes is addressed. As intraneural vascularization has been poorly studied, histological experiments were carried out from rat sciatic nerves damaged by a glycerol injection. The results, taken together with the data from literature, suggest that revascularization plays an important role in peripheral nerve regeneration and must therefore be studied more carefully.Martial Caillaud Laurence Richard Jean-Michel Vallat Alexis Desmoulière Fabrice Billet 2019Neural Regeneration Research2019,14,1:20
8多孔泡沫材料的声吸收特性显示文摘为了结合泡沫金属兼有的高吸声和高热传导两种特性以进一步提高其吸声性能,回顾了泡沫金属材料的应用和声学建模;通过对泡沫金属和用于制造泡沫金属的高分子基体材料的实验,比较了作者提出的声波通过泡沫金属传播的3种黏滞模型的预测结果,结果表明所有模型在泡沫金属典型胞元尺寸所对应的低雷诺数范围内是有效的(假定声波为线性,幅值低于160dB).卢天健 Iain D. J. Dupère Ann P. Dowling 2007西安交通大学学报2007,41,7:18
9Minimally invasive surgery for gastric cancer: A comparison between robotic, laparoscopic and open surgery显示文摘AIM To investigate the role of minimally invasive surgery for gastric cancer and determine surgical, clinical, and oncological outcomes.METHODS This is a propensity score-matched case-control study, comparing three treatment arms: robotic gastrectomy(RG), laparoscopic gastrectomy(LG), open gastrectomy(OG). Data collection started after sharing a specific study protocol. Data were recorded through a tailored and protected web-based system. Primary outcomes: harvested lymph nodes, estimated blood loss, hospital stay, complications rate. Among the secondary outcomes, there are: operative time, R0 resections, POD of mobilization, POD of starting liquid diet and soft solid diet. The analysis includes the evaluation of type and grade of postoperative complications. Detailed information of anastomotic leakages is also provided.RESULTS The present analysis was carried out of 1026 gastrectomies. To guarantee homogenous distribution of cases, patients in the RG, LG and OG groups were 1:1:2 matched using a propensity score analysis with a caliper = 0.2. The successful matching resulted in a total sample of 604 patients(RG = 151; LG = 151; OG = 302). The three groups showed no differences in all baseline patients characteristics, type of surgery(P = 0.42) and stage of the disease(P = 0.16). Intraoperative blood loss was significantly lower in the LG(95.93 ± 119.22) and RG(117.91 ± 68.11) groups compared to the OG(127.26 ± 79.50, P = 0.002). The mean number of retrieved lymph nodes was similar between the RG(27.78 ± 11.45), LG(24.58 ± 13.56) and OG(25.82 ± 12.07) approach. A benefit in favor of the minimally invasive approaches was found in the length of hospital stay(P < 0.0001). A similar complications rate was found(P = 0.13). The leakage rate was not different(P = 0.78) between groups.CONCLUSION Laparoscopic and robotic surgery can be safely performed and proposed as possible alternative to open surgery. The main highlighted benefit is a faster postoperative functional recovery.Amilcare Parisi Daniel Reim Felice Borghi Ninh T Nguyen Feng Qi Andrea Coratti Fabio Cianchi Maurizio Cesari Francesca Bazzocchi Orhan Alimoglu Johan Gagnière Graziano Pernazza Simone D'Imporzano Yan-Bing Zhou Juan-Santiago Azagra Olivier Facy Steven T Brower Zhi-Wei Jiang Lu Zang Arda Isik Alessandro Gemini Stefano Trastulli Alexander Novotny Alessandra Marano Tong Liu Mario Annecchiarico Benedetta Badii Giacomo Arcuri Andrea Avanzolini Metin Leblebici Denis Pezet Shou-Gen Cao Martine Goergen Shu Zhang Giorgio Palazzini Vito D'Andrea Jacopo Desiderio 2017World Journal of Gastroenterology2017,23,13:17
10声学多孔材料的孔结构优化显示文摘介绍了一种基于微结构的声学模型,可用来对多孔材料的微组织结构进行优化,从而使多孔材料具备最佳的声学性能.该模型是一种适用于低雷诺数的非稳态线性声学模型,主要微结构考虑平行排列的柱形杆件或圆球列阵,包括3个子模型:①声波传播方向平行于圆柱形杆件的子模型;②声波传播方向垂直于圆柱形杆件的子模型;③声波在圆球列阵中传播和吸收的子模型.前2个子模型通过考虑多边形周期边界条件的影响,计及了相邻圆柱形杆件间的交互作用.由于模型是线性的,因此可以结合起来描述任意角度入射声波的传播特性.第3个子模型可用于描述胞状多孔材料中节点处的情形.文中利用这3个子模型来扩大吸声材料的设计空间,根据不同用途所要求的声学特性计算最优的胞元结构,并对这种模型的应用领域进行了分析讨论.Iain D.J.Dupère 卢天健 Ann P.Dowling 2007西安交通大学学报2007,41,11:15
11高危患者目标血压与心血管病预后显示文摘指南推荐血压目标值应〈140/90 mmHg(1mmHg=0.133kPa)以减少心血管事件的发生。但与其他心血管病预后(如冠状动脉事件)相比,包括脑卒中及心力衰竭在内的心血管病预后与收缩压下降关系更密切。一些心血管事件(如冠状动脉事件)风险在收缩压低时亦增高,风险-收缩压关系呈J形曲线,而脑卒中与血压不是J形曲线关系。B?hm M Schumacher H Teo KK Lonn EM Mahfoud F Mann JF Mancia G Redon J Schmieder RE Sliwa K Weber MA Williams BYusuf S 曲浥晨 叶鹏 2017中华高血压杂志2017,25,6:14
12RESEARCH ON THE EVALUATION METHOD OF FRICTION AND LUBRICATION IN DEEP DRAWING显示文摘The deformation characteristic of bland in deep drawing is discussed. It is pointed out that the friction and lubrication conditions in for drawing are different from that in mechanical motion or machine work or other plastic process. The common test methods in laboratories are analyzed. It shows that though all those test methods can test the friction coefficient, the probe test method is most suitable for the research of friction and lubrication and the process in deep drawing, for this method is identical with the actual work condition either from the test principle or deformation status of the blank. Last the successful application in the deep drawing simulator newly developed the the probe method are intro- duced in detail.D. N. He, X. F. Yin, H. Z. Thao, D. L*, X. Y. Ruan, J. L. Cheng and J. Y. Jiang 1) Shanghai Jiao Tong University, National Die & Mold CAD E. R. C, Shanghai 200030, China 2) Shanghai Vopkswagen Automotive Company Ltd., Shanghai 201805, China Manuscript re 2000Acta Metallurgica Sinica(English Letters)2000,13,2:13
13Effects of Predeformation on the Reverse Martensitic Transformation of TiNi Shape Memory Alloy显示文摘DSC was used to study the effects of predeformation on the reverse martensitic transformation of near-equiatomic TiNi alloy. Both the start temperature A. and the finish temperature Af of the reverse transformation increased with increasing degree of predeformation, but the algebraic difference between A. and Af decreased with increasing predeformation until it reached a minimum value, then remained unchanged with further deformation. Transformation heat also increased with increasing predeformation until it reached a maximum value, then decreased with further predeformation. All the phenomena above were considered to be closely related With the release of elastic strain energy during predeformation.Yanjun ZHENG, Lishan CUI and Fan ZHANG (Department of Materials Science and Engineering, University of Petroleum, Beijing 102200, China) Dazhi YANG (Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China) 2000Journal of Materials Science & Technology2000,16,6:13
14How we can improve patients’comfort after Milligan- Morgan open haemorrhoidectomy显示文摘AIM:To demonstrate the value of Diosmin(flavonidic fraction)in the management of post-haemorhoidectomic symptoms.METHODS:Eighty-six consecutive patients with grades ⅢandⅣacute mixed hemorrhoids admitted to the Anorectal Surgical Department of First Affiliated Hospital,Xinjiang Medical University from April 2009 to April 2010,were enrolled in this study.An observerblinded,randomized trial was conducted to compare post-haemorhoidectomic symptoms with use of Diosmin flavonidic fraction vs placebo.Eighty-six patients were randomly allocated to receive Diosmin flavonidic fraction 500 mg for 1 wk(n=43)or placebo(n=43).The Milligan-Morgan open haemorrhoidectomy was performed by a standardized diathermy excision method.Pain,bleeding,heaviness,pruritus,wound edema and mucosal discharge were observed after surgery.The postoperative symptoms and hospitalization time were recorded.RESULTS:The mean age of the Diosmin group and controls was 53.2 and 51.3 years,respectively.In Diosmin group,haemorrhoid piles were of the third degree in 33 patients and the fourth degree in 10;and in the control group,29 were of the third degree and 14 were of the fourth degree.There was no statistically significance in age,gender distribution,degree and number of excised haemorrhoid piles,and the mean duration of haemorrhoidal disease between the two groups.There was a statistically significant improvement in pain,heaviness,bleeding,pruritus from baseline to the 8th week after operation(P<0.05).Patients taking Diosmin had a shorter hospitalization stay after surgery(P< 0.05).There was also a significant improvement on the proctoscopic appearance(P<0.001).However,there was no statistical difference between the two groups in terms of wound mucosal discharge.Two patients experienced minor bleeding at the 8th week in Diosmin group,and underwent surgery.CONCLUSION:Diosmin is effective in alleviating postoperational symptoms of haemorrhoids.Therefore,it should be considered for the initial treatment after haemorrhoid surgery.However,further prospective randomized trials are needed to confirm the findings of this study.Ma-Mu-Ti-Jiang A ba-bai-ke-re Hong-Guo Huang Wen-Ni Re Kai Fan Hui Chu Er-Ha-Ti Ai Mai-Mai-Ti-Tu-Er-Xun KE Li-Mu Yi-Rui Wang Hao Wen 2011World Journal of Gastroenterology2011,17,11:13
15Pancreatic ductal system obstruction and acute recurrent pancreatitis显示文摘Acute recurrent pancreatitis is a clinical entity largely associated with pancreatic ductal obstruction. This latter includes congenital variants, of which pancreas divisum is the most frequent but also controversial, chronic pancreatitis, tumors of the pancreaticobiliary junction and sphincter of Oddi dysfunction. This review summarizes current knowledge about diagnostic work-up and therapy of these conditions.M Delhaye C Matos M Arvanitakis J Devière 2008World Journal of Gastroenterology2008,14,7:12
16离心泵叶轮内旋转流场激光测量的研究显示文摘采用双焦激光流速仪对离心泵叶轮内旋转流场和叶轮出口附近的泵涡壳流速场,选择3个不同方位的窗口进行了测量。所测量的3种不同运行工况,其流量分别为设计流量的1.0,0.70和0.38。不同窗口测得的两叶片间流道的流速分布表明,即使在设计工况下,整个叶轮各叶片间的流速分布也不是对称的。叶轮出口处的液流角从叶片吸入侧向叶片压力侧增大,叶片吸入侧出现脱流。这在非设计工况尤其明显,并同时产生二次流。在流量为0.38设计流量时,二次流较强。液流相对运动的主流从在叶片进口处的吸入侧转移到叶片出口处的压力侧。刘超 Deot.,RE 1994江苏农学院学报1994,15,4:11
17Sonographic appearance of anal cushions of hemorrhoids显示文摘AIM To evaluate the diagnostic value of different sonographic methods in hemorrhoids.METHODSForty-two healthy volunteers and sixty-two patients with gradesⅠ-Ⅳhemorrhoids received two different sonographic examinations from January 2013 to January2016 at the First and Second Hospitals of Xinjiang Medical University in a prospective way.We analyzed the ultrasonographic findings of these participants and evaluated the outcomes.Resected gradesⅢandⅣhemorrhoid tissues were pathologically examined.The concordance of ultrasonographic results with pathologyresults was assessed with the Cohen’s kappa coefficient.RESULTS All healthy volunteers and all patients had no particular complications related to sonography.There were no statistically significant differences between the participants regarding age(P=0.5919),gender(P=0.4183),and persistent symptoms(P>0.8692).All healthy control participants had nospecial findings.However,30 patients with hemorrhoids showed blood signals around the dentate line on ultrasonography.When gradesⅠandⅡhemorrhoids were analyzed,there were no significant differences between transrectal ultrasound(TRUS),transperianal ultrasound(TPUS),and transvaginal ultrasound(TVUS)(P>0.05).GradesⅢandⅣhemorrhoids revealed blood flow with different directions which could be observed as a'mosaic pattern'.In patients with gradesⅢandⅣhemorrhoids,the number of patients with'mosaic pattern'as revealed by TRUS,TPUS and TVUS was 22,12,and 4,respectively.Patients with gradesⅢandⅣdisease presented with a pathologically abnormal cushion which usually appeared as a'mosaic pattern'in TPUS and an arteriovenous fistula in pathology.Subepithelial vessels of resected gradesⅢandⅣhemorrhoid tissues were manifested by obvious structural impairment and retrograde and ruptured changes of internal elastic lamina.Some parts of the Trietz’s muscle showed hypertrophy and distortion.Arteriovenous fistulas and venous dilatation were obvious in the anal cushion of hemorhoidal tissues.After pathological results with arteriovenous fistulas were taken as the standard reference,we evaluated the compatibility between the two methods according to the Cohen’s kappa coefficiency calculation.The compatibility(Cohein kappa co-efficiency value)between'mosaic pattern'in the TPUS and arteriovenous fistula in pathology was very good(?=0.8939).When compared between different groups,TRUS presented the advantage that the mosaic pattern could be confirmed in more patients,especially for group A.There was a statistical difference when comparing group A with group B or C(P<0.05 for both).There were obvious statistical differences between group A and group B with regard to the vessel diameter and blood flow velocity measured by TRUS(P<0.05).CONCLUSION Patients with gradesⅢandⅣhemorrhoids present with a pathologically abnormal cushion which usually appears as a'mosaic pattern'in sonography,which is in accord with an arteriovenous fistula in pathology.There are clearly different hemorrhoid structures shown by sonography.'Mosaic pattern'may be a parameter for surgical indication of gradesⅢandⅣhemorrhoids.Adilijiang Aimaiti Ma Mu Ti Jiang A Ba Bai Ke Re Irshat Ibrahim Hui Chen Maimaitituerxun Tuerdi Mayinuer 2017World Journal of Gastroenterology2017,23,20:11
18铝合金焊缝疲劳开裂的原位同步辐射X射线成像显示文摘基于第三代高精度同步辐射X射线三维成像技术,开展表面经抛光的铝合金光纤激光-脉冲电弧复合焊接头疲劳裂纹萌生和扩展的原位可视化研究.结果表明,疲劳裂纹均优先从样品(亚或次)表面或角(亚)表面上的焊接气孔处萌生和扩展,并呈现典型的I型表面半椭圆或四分之一椭圆(或圆形)裂纹形貌.一旦裂纹萌生,裂纹在表面的扩展速率低于内部,且存在局部加速和停滞现象,萌生源的特征长度越大,则裂纹萌生和扩展寿命越短,裂纹形貌为高度非线性的空间特征.此外基于经典Newman表面半椭圆形裂纹形貌预测结果与试验基本一致.吴圣川 胡雅楠 付亚楠 Buffière J Y 2015焊接学报2015,36,12:11
19Association of colorectal cancer with pathogenic Escherichia coli: Focus on mechanisms using optical imaging显示文摘AIM: To investigate the molecular or cellular mechanisms related to the infection of epithelial colonic mucosa by pks-positive Escherichia coli(E. coli) using optical imaging.METHODS: We choose to evaluate the tumor metabolic activity using a fluorodeoxyglucose analogue as 2-deoxyglucosone fluorescent probes and to correlate it with tumoral volume(mm^3). Inflammation measuring myeloperoxidase(MPO) activity and reactive oxygen species production was monitored by a bioluminescent(BLI) inflammation probe and related to histological examination and MPO levels by enzyme-linked immunosorbent assay(ELISA) on tumor specimens. The detection and quantitation of these two signals were validated on a xenograft model of human colon adenocarcinoma epithelial cells(HCT116) in nude mice infected with a pks-positive E. coli. The inflammatory BLI signal was validated intra-digestively in the colitisCEABAC10 DSS models, which mimicked Crohn's disease. RESULTS: Using a 2-deoxyglucosone fluorescent probe, we observed a high and specific HCT116 tumor uptake in correlation with tumoral volume(P = 0.0036). Using the inflammation probe targeting MPO, we detected a rapid systemic elimination and a significant increase of the BLI signal in the pks-positive E. coli-infected HCT116 xenograft group(P < 0.005). ELISA confirmed that MPO levels were significantly higher(1556 ± 313.6 vs 234.6 ± 121.6 ng/m L P = 0.001) in xenografts infected with the pathogenic E. coli strain. Moreover, histological examination of tumor samples confirmed massive infiltration of pks-positive E. coli-infected HCT116 tumors by inflammatory cells compared to the uninfected group. These data showed that infection with the pathogenic E. coli strain enhanced inflammation and ROS production in tumors before tumor growth. Moreover, we demonstrated that the intra-digestive monitoring of inflammation is feasible in a reference colitis murine model(CEABAC10/DSS).CONCLUSION: Using BLI and fluorescence optical imaging, we provided tools to better understand hostpathogen interactions at the early stage of disease, such as inflammatory bowel disease and colorectal cancer.Julie Veziant Johan Gagnière Elodie Jouberton Virginie Bonnin Pierre Sauvanet Denis Pezet Nicolas Barnich Elisabeth Miot-Noirault Mathilde Bonnet 2016World Journal of Clinical Oncology2016,7,3:10
20H2O2-Activated Up-Regulation of Glutathione in Arabidopsis Involves Induction of Genes Encoding Enzymes Involved in Cysteine Synthesis in the Chloroplast显示文摘谷胱甘肽在对 H2O2 的反应是在细胞的氧化还原作用动态平衡并且,因此的一个关键播放器,但是调整激活氧化的谷胱甘肽合成的因素仍然是不清楚的。我们在有条件的 Arabidopsis 过氧化氢酶缺乏的异种(cat2 ) 调查了导致 H2O2 的谷胱甘肽合成。植物为 5 在提高的 CO2 从种子被种 ? 星期,然后处于短天或长天的条件转了到空气。处于任何条件在提高的 CO2 或野类型的植物比作 cat2,到在两个光周期的空气的 cat2 的转移在小时以内引起了叶谷胱甘肽水池的可测量的氧化。氧化在随后的天继续并且被谷胱甘肽的累积伴随。这效果在在短天内转移到空气的 cat2 是更强壮的,并且没被连接到可引出的活动或涉及谷胱甘肽合成的承诺的小径的抄本编码酶的可估计的增加。相反,它被丝氨酸, O-acetylserine,和半胱氨酸的增加伴随。在代谢物的这些变化被编码腺苷 phosphosulfate reductase (4 月) 的基因的正式就职伴随,特别地, APR3,以及编码 chloroplastic 的特定的丝氨酸 acetyltransferase 基因(SAT2.1 ) 坐了。标记这些基因的正式就职仅仅在处于短天的条件转移到空气的 cat2 被观察,在半胱氨酸和谷胱甘肽累积是很戏剧的的地方。不同于另外的容纳的基因,它在 cat2 显示出可以忽略的正式就职,相对许多 4 月和 SAT2.1 抄本密切为 H2O2 发信号与标记抄本被相关。一起,数据在谷胱甘肽合成的导致氧化剂的起来规定加重半胱氨酸合成的重要性并且建议叶绿体在这些情形下面做重要贡献到半胱氨酸生产。Guillaume Queval Dorothée Thominet Hélène Vanacker Myroslawa Miginiac-Maslow Bertrand Gakière Graham Noctor 2009Molecular Plant2009,2,2:10
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