维普中文期刊产品整合服务
373篇 您的检索式:作者名="Sandra C"
    题名 作者 年代 出处 被引量
1Microbiota modification by probiotic supplementation reduces colitis associated colon cancer in mice显示文摘AIM To investigate the effect of probiotic supplementation during the development of an experimental model of colitis associated colon cancer(CAC). METHODS C57 BL/6 mice received an intraperitoneal injection of azoxymethane(10 mg/kg), followed by three cycles of sodium dextran sulphate diluted in water(5% w/v). Probiotic group received daily a mixture of Lactobacillus acidophilus, Lactobacil us rhamnosus and Bifidobacterium bifidum. Microbiota composition was assessed by 16 Sr RNA Illumina Hi Seq sequencing. Colon samples were collected for histological analysis. Tumor cytokines was assessed by Real Time-PCR(Polymerase Chain Reaction); and serum cytokines by Multiplex assay. All tests were two-sided. The level of significance was set at P < 0.05. Graphs were generated and statistical analysis performed using the software Graph Pad Prism 5.0. The project was approved by the institutional review board committee. RESULTS At day 60 after azoxymethane injection, the mean number of tumours in the probiotic group was 40% lower than that in the control group, and the probiotic group exhibited tumours of smaller size(< 2 mm)(P < 0.05). There was no difference in richness and diversity between groups. However, there was a significant difference in beta diversity in the multidimensional scaling analysis. The abundance of the genera Lactobacillus, Bifidobacterium, Allobaculum, Clostridium XI and Clostridium XVⅢ increased in the probiotic group(P < 0.05). The microbial change was accompanied by reduced colitis, demonstrated by a 46% reduction in the colon inflammatory index; reduced expression of the serum chemokines RANTES and Eotaxin; decreased p-IKK and TNF-α and increased IL-10 expression in the colon. CONCLUSION Our results suggest a potential chemopreventive effect of probiotic on CAC. Probiotic supplementation changes microbiota structure and regulates the inflammatory response, reducing colitis and preventing CAC.Maria Carolina S Mendes Daiane SM Paulino Sandra R Brambilla Juliana A Camargo Gabriela F Persinoti José Barreto C Carvalheira 2018World Journal of Gastroenterology2018,24,18:17
2PPIs are not associated with a lower incidence of portal-hypertension-related bleeding in cirrhosis显示文摘AIM:To determine if proton pump inhibitor use in cirrhotic patients with endoscopic findings of portal hypertension is associated with a lower frequency of gastrointestinal bleeding.METHODS:Patients with cirrhosis and endoscopic findings related to portal hypertension,receiving or not receiving proton pump inhibitor (PPI) therapy,were included retrospectively.We assigned patients to two groups:group 1 patients underwent PPI therapy and group 2 patients did not undergo PPI therapy.RESULTS:One hundred and five patients with a median age of 58 (26-87) years were included,57 (54.3%) of which were women.Esophageal varices were found in 82 (78%) patients,portal hypertensive gastropathy in 72 (68.6%) patients,and gastric varices in 15 (14.3%) patients.PPI therapy was used in 45.5% of patients (n=48).Seventeen (16.1%) patients presented with upper gastrointestinal bleeding;in 14/17 (82.3%) patients,bleeding was secondary to esophageal varices,and in 3/17 patients bleeding was attributed to portal hypertensive gastropathy.Bleeding related to portal hypertension according to PPI therapy occurred in 18.7% (n=9) of group 1 and in 14% (n=8) of group 2 (odds ratio:0.83,95% confidence interval:0.5-1.3,P=0.51).CONCLUSION:Portal hypertension bleeding is not associated with PPI use.These findings do not support the prescription of PPIs in patients with chronic liver disease with no currently accepted indication.Mauricio Garcia-Saenz-de-Sicilia Francisco Sanchez-Avila Norberto C Chavez-Tapia Gustavo Lopez-Arce Sandra Garcia-Osogobio Roberto Ruiz-Cordero Felix I Tellez-Avila 2010World Journal of Gastroenterology2010,16,46:6
3Bcl-2 degradation is an additional pro-apoptotic effect of polo-like kinase inhibition in cholangiocarcinoma cells显示文摘AIM To examine the influence on apoptotic mechanisms following inhibition of polo-like kinases as therapeuticallyapproach for cholangiocellular cancer treatment. METHODS As most cholangiocarcinomas are chemotherapyresistant due to mechanisms preventing tumor cell death, we investigated the effect of Cisplatin on cholangiocellular carcinoma(CCA) cell lines KMCH-1 and Mz-Ch-1. Polo-like kinases(PLK) are important regulators of the cell cycle and their inhibition is discussed as a potential therapy while PLK inhibition can regulate apoptotic mediators. Here, cells were treated with PLK inhibitor BI6727(Volasertib), Cisplatin, and in combination of both compounds. Cell viability was assessed by MTT; apoptosis was measured by DAPI staining and caspase-3/-7 assay. Western blot and q RT-PCR were used to measure expression levels of apoptosis-related molecules Bax and Bcl-2. RESULTS The cell viability in the CCA cell lines KMCH-1 and Mz-Ch-1 was reduced in all treatment conditions compared to vehicle-treated cells. Co-treatment with BI6727 and cisplatin could even enhance the cytotoxic effect of cisplatin single treatment. Thus, co-treatment of cisplatin with BI6727 could slightly enhance the cytotoxic effect of the cisplatin in both cell lines whereas there was evidence of increased apoptosis induction solely in Mz-Ch-1 as compared to KMCH-1. Moreover, PLK inhibition decreases protein levels of Bcl-2; an effect that can be reversed by the proteasomal degradation inhibitor MG-132. In contrast, protein levels of Bax were not found to be altered by PLK inhibition. These findings indicate that cytotoxic effects of Cisplatin in Mz-Ch-1 cells can be enhanced by co-treatment with BI6727.CONCLUSION In conclusion, BI6727 treatment can sensitize CCA cells to cisplatin-induced apoptosis with proteasomal Bcl-2 degradation as an additional pro-apoptotic effect.Svenja Sydor Sami Jafoui Lena Wingerter Sandra Swoboda Joachim C Mertens Guido Gerken Ali Canbay Andreas Paul Christian D Fingas 2017World Journal of Gastroenterology2017,23,22:5
4Bile leakage after loop closure vs clip closure of the cystic duct during laparoscopic cholecystectomy:A retrospective analysis of a prospective cohort显示文摘BACKGROUND Laparoscopic cholecystectomy(LC)is one of the most frequently performed surgical procedures.Cystic stump leakage is an underestimated,potentially life threatening complication that occurs in 1%-6%of the patients.With a secure cystic duct occlusion technique during LC,bile leakage becomes a preventable complication.AIM To investigate the effect of polydioxanone(PDS)loop closure of the cystic duct on bile leakage rate in LC patients.METHODS In this retrospective analysis of a prospective cohort,the effect of PDS loop closure of the cystic duct on bile leakage complication was compared to patients with conventional clip closure.Logistic regression analysis was used to develop a risk score to identify bile leakage risk.Leakage rate was assessed for categories of patients with increasing levels of bile leakage risk.RESULTS Of the 4359 patients who underwent LC,136(3%)underwent cystic duct closure by a PDS loop.Preoperatively,loop closure patients had significantly more complicated biliary disease compared to the clipped closure patients.In the loop closure cohort,zero(0%)bile leakage occurred compared to 59 of 4223(1.4%)clip closure patients.For patients at increased bile leakage risk(risk score≥1)rates were 1.6%and up to 13%(4/30)for clip closure patients with a risk score≥4.This risk increase paralleled a stepwise increase of actual bile leakage complication for clip closure patients,which was not observed for loop closure patients.CONCLUSION Cystic duct closure with a PDS loop during LC may reduce bile leakage in patients at increased risk for bile leakage.Sandra C Donkervoort Lea M Dijksman Aafke H van Dijk Emile A Clous Marja A Boermeester Bert van Ramshorst Djamila Boerma 2020World Journal of Gastrointestinal Surgery2020,12,1:4
5Systematic review of cystic duct closure techniques in relation to prevention of bile duct leakage after laparoscopic cholecystectomy显示文摘AIM To study the effect of different techniques of cystic duct closure on bile leakage after laparoscopic cholecystectomy(LC) for biliary disease.METHODS A systematic search of MEDLINE, Cochrane and EMBASE was performed. Rate of cystic duct leakage(CDL) was the primary outcome. Risk of bias was evaluated. Odds ratios were analyzed for comparison of techniques and pooled event rates for non-comparative analyses. Pooled event rates were compared for each of included techniques.RESULTS Out of 1491 articles, 38 studies were included. A total of 47491 patients were included, of which 38683(81.5%)underwent cystic duct closure with non-locking(metal)clips. All studies were of low-moderate methodological quality. Only two studies reported separate data on uncomplicated and complicated gallbladder disease. For overall CDL, an odds ratio of 0.4(95%CI: 0.06-2.48)was found for harmonic energy vs clip closure and an odds ratio of 0.17(95%CI: 0.03-0.93) for locking vs non-locking clips. Pooled CDL rate was around 1% for harmonic energy and metal clips, and 0% for locking clips and ligatures. CONCLUSION Based on available evidence it is not possible to either recommend or discourage any of the techniques for cystic duct closure during LC with respects to CDL,although data point out a slight preference for locking clips and ligatures vs other techniques. No separate recommendation can be made for complicated gallbladder disease.Aafke H van Dijk Stijn van Roessel Philip R de Reuver Djamila Boerma Marja A Boermeester Sandra C Donkervoort 2018World Journal of Gastrointestinal Surgery2018,10,6:3
6Function and regulation of self-reactive marginal zone B cells in autoimmune arthritis显示文摘Polyreactive 天生类型的 B 房间说明在圆周表示自我反应的许多 B 房间。这些 B 房间的不适当的规定可以是位于自体免疫的疾病下面的一个重要因素。这里,我们在导致骨胶原的关节炎(中央情报局) 的开发探索了自我反应的天生的 B 房间的影响,风湿性关节炎的一个鼠标模型。我们显示出那个脾的边缘的地区(MZ ) ,然而并非 B-1 B 房间在 naı 展出自发的 IgM 反应到自体同源的骨胶原 II; ¨ ve 老鼠。在有在完全的 Freund’ 的 heterologous 骨胶原 II 的免疫之上;骨胶原反应的 MZ B 房间很快扩展了的 s 助手,当 B-1 B 房间显示出谦虚反骨胶原回答时。MZ B 房间被像使用费的受体(TLR ) 容易激活 4 并且在 vitro,导致的增长和 cytokine 分泌物的 9-ligands,暗示 B 房间受体和 TLR 的那个双约会可以把有免疫力的反应提升到自我抗原。而且,告知骨胶原的 MZ B 房间显示出在 vivo 在 IgG 反骨胶原抗体的 vitro 和正式就职由血缘的 T 房间增长思考了的重要介绍抗原的能力。在 1 和 2 表明了的补充受体是缺乏的 MZ B 房间增加了增长和 cytokine 生产,当时 Fcγ房间的受体 IIb 缺乏导致增加的 cytokine 生产和抗原表示。在结论,我们的数据在中央情报局作为自体免疫的反应的开始者加亮自我反应的 MZ B 房间,在补充和 Fc 受体在在房间控制自我反应是相关的的地方。Anna-Karin E Palm Heike C Friedrich Anja Mezger Maya Salomonsson Linda K Myers Sandra Kleinau 2015Cellular & Molecular Immunology2015,12,4:3
7Novel p19 Protein Engages IL-12p40 to Form a Cytokine, IL-23, with Biological Activities Similar as Well as Distinct from IL-12显示文摘Birgit Oppmann Robin Lesley Bianca Blom Jackie C Timans Yuming Xu Brisdell Hunte Felix Vega Nancy Yu Jing Wang Komal Singh Francesca Zonin Elena Vaisberg Tatyana Churakova Man-ru Liu Daniel Gorman Janet Wagner Sandra Zurawski Yong-Jun Liu John S Abrams Ke 2000Immunity2000,,5:2
8Risk factors for endophthalmitis following cataract surgery-our experience at a tertiary eye care centre in India显示文摘AIM: To determine the risk factors for acute endophthalmitis after cataract extraction in a tertiary care centre in India.·METHODS: We performed a nested case control study within a retrospective cohort. The surgical records of all patients with clinically diagnosed endophthalmitis within one month after cataract surgery, performed between January 2006 and December 2009, were reviewed. These were compared with randomly selected age and gender-matched controls, from patients having routine cataract surgery within ±1wk of the endophthalmitis case.Univariable and multivariable analysis were performed to identify risk factors for endophthalmitis.· RESULTS: Of the total 33 856 cataract surgeries performed during this period, there were 57 cases of postoperative acute endophthalmitis that met our study criteria. Thus, the overall incidence of endophthalmitis in our cohort was 1.6 per 1000 cataract extractions performed. Mean age of cases was 55.9y(SD: 10.9y) and for controls was 55.6y(SD: 9.8y). Thirty-five cases(61.4%)and 133 controls(59.6%) were males. Median time of onset of endophthalmitis was 4d(IQR 2-9d; range: 1-30d).Thirty-nine cases(68.4%) presented within 7d and 27 cases(47.4%) were culture positive. Two hundred and twenty-three age and gender matched controls were selected. In multivariate analysis, endophthalmitis was associated with posterior capsular rupture(PCR) during surgery(OR 6.98, 95%CI: 2.22-21.98), phacoemulsification via scleral incision with a foldable intraocular lens(IOL)implantation(OR 3.02, 95%CI: 1.13-8.04) and ocular comorbidity(OR 2.32, 95%CI: 1.11-4.87).·CONCLUSION: PCR, presence of ocular co-morbidity,and phacoemulsification via scleral incision with foldable-IOL were found to be independent risk factors for acute endophthalmitis.Rohit C.Khanna Vanita Pathak Ray Madhavi Latha Sandra D Cassard Annie Mathai Garudadri C Sekhar 2015International Journal of Ophthalmology(English edition)2015,8,6:2
9Development of Junction Elements from Study of the Bionics显示文摘The applications of bionic methodology developed by the Laboratory of Design and Material Selection as basis in the creation of junction elements were demonstrated. These elements favor the application of Ecodesign in reference to the effec-tiveness of product dismount aiming the reduction of ambient impact in all its phases of use. The creation,the development and the confection of new junction elements were described,and case studies of new products developed specifically with this purpose were presented.Wilson Kindlein Junior Luis Henrique Alves Cndido André Canal Marques Sandra Souza dos Santos Maurício da Silva Viegas 2007Journal of Bionic Engineering2007,4,1:2
10Applicability of in situ or transplanted lichens for assessment of atmospheric pollution in Patagonia, Argentina 显示文摘Susana C Sandra L 2004Journal of Atmospheric Chemistry2004,49,:1
11Double-blind, placebo- controlled study of the use of amphetamine in the treatment of aphasia显示文摘Delaina WB Sandra C Rajeshwari NA 2001Stroke2001,32,9:1
12Incidence and predictors of glaucoma following surgery for congenital cataract in the first year of life in V ictoria, A ustralia显示文摘Jonathan B Ruddle Sandra E Staffieri Jonathan G Crowston Justin C Sherwin David A Mackey 2013Clin Experiment Ophthalmol2013,,7:1
13Human 4: anovel inducible peptide with a specific salt-sensitive spect nun of antimicrobial activity显示文摘Garcia C Krause A SandraS 2001J FASEB2001,15,:1
14Flavour analysis of Greek white wine by solid-phase microextraction-capillary gas chromatography-mass spectrometry显示文摘DEMYTTENAERE J C R DAGHER C SANDRA P 2003J Chromatogr A2003,985,12:1
15Double-Blind, Placebo- Controlled Study of the Use of Amph-etamine in the Treatment of Aphasia显示文摘Delaina WB Sandra C Rajeshwari NA 2001Stroke2001,32,:1
16Influence of H2O2 and Fe(Ⅲ) in the photodegradation显示文摘MIGUEL R ANDREAS K SANDRA C 2000Photochem & Photobiol A:Chem2000,133,:1
17Rate equation for the degradation of nitrobenzene by 'Fenton-like' reagent显示文摘Miguel R Andreas K Sandra C et ol 2003Advances in EnvironmentalResearch2003,7,2:1
18Efficacy of amannan oligosaccharide(Bio-Mos)for improving nursery pigperformance显示文摘Miguel J C Sandra L Rodriguez-Zas Pettigrew J E 2004Journal of Swine Health and Production2004,12,6:1
19Ultrasound enhancement of Liposome-mediated cell transfection caused by cavitation effects显示文摘Sandra K Peter P Ulrich C 2000Ultrasound Med Biol2000,26,:1
20Antimalarial quinolines and artemisinin inhibit endocytosis in plasmodium falciparum显示文摘Heinrich C Donelly A Ursula M Sandra A Joanne E Brandon W 2004Antimicro Agents Chemother2004,48,:1
返回顶部 每页显示:
共19页 首页 上一页 第1页 下一页 末页 /19 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费