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116篇 您的检索式:作者名="Camelia"
    题名 作者 年代 出处 被引量
1Sulforaphane Protects Astrocytes Against Oxidative Stress and Delayed Death Caused by Oxygen and Glucose Deprivation显示文摘氧化应激是缺血再灌注后星形胶质细胞损伤和死亡的重要分子机制之一,可能成为有效的干预靶点。下述治疗策略可减轻缺血再灌注条件下产生的多种反应性氮氧化合物损伤。这种方法可通过使用化学试剂或适当条件促进转录活化因子NRF2从细胞浆转入细胞核,并与抗氧化基因反应位点结合,来诱导缺血再灌注后损伤细胞的Ⅱ期基因反应。本研究将验证如下假说:NRF2基因表达通路激活剂sulforaphane能对体外无氧无糖环境处理的培养皮质星形胶质细胞起神经保护作用。将皮质星形胶质细胞暴露于无氧无糖环境(OGD)4 h,于干预前48 h或干预后给予5μMsulforaphane(NRF2基因表达通路激活剂)培养48 h,两种培育条件下细胞死亡均明显减少。免疫细胞化学结果表明干预前给予sulforaphane处理,细胞中DNA/RNA氧化标志物8-hydroxy-2-deox-yguanosine的表达在恢复给氧4 h后降低,两种培育条件下胞浆内及胞核内NRF2的免疫反应均增强且NQO1(NRF2转录活化基因产物)的表达和酶活性均增强。本研究提示sulforaphane可通过激活NRF2抗氧化基因表达通路,减少体外缺氧再灌注后星形胶质细胞的死亡。CAMELIA A.DANILOV KRISH CHANDRASEKARAN JENNIFER RACZ LUCIAN SOANE CAROL ZIELKE AND GARY FISKUM 2009神经损伤与功能重建2009,4,2:12
2Impact of Clostridium difficile infection on inflammatory bowel disease outcome: A review显示文摘Although a considerable number of studies support a substantial increase in incidence, severity, and healthcare costs for Clostridium difficile infection(CDI) in inflammatory bowel disease(IBD), only few evaluate its impact on IBD outcome. Medline and several other electronic databases from January 1993 to October 2013 were searched in order to identify potentially relevant literature. Most of the studies showed that IBD patients with CDI present a greater proportion of worse outcomes than those without CDI. These patients have longer length of hospital stay, higher rates of colectomies, and increased mortality. Patients with ulcerative colitis are more susceptible to CDI and have more severe outcomes than those with Crohn's disease. However, studies reported variable results in both short-and long-term outcomes. Contrasting results were also found between studies using nationwide data and those reporting from single-center, or between some NorthAmerican and European studies. An important limitation of all studies analyzed was their retrospective design. Due to contrasting data often provided by retrospective studies, further prospective multi-center studies are necessary to evaluate CDI impact on IBD outcome. Until then, a rapid diagnosis and adequate therapy of infection are of paramount importance to improve IBD patients' outcome. The aim of this article is to provide up to date information regarding CDI impact on outcome in IBD patients.Anca Trifan Carol Stanciu Oana Stoica Irina Girleanu Camelia Cojocariu 2014World Journal of Gastroenterology2014,20,33:11
3Systematic review of the old and new concepts in the epithelial-mesenchymal transition of colorectal cancer显示文摘Epithelial-to-mesenchymal transition(EMT) is defined as the transformation of an epithelial cell into a spindle cell with the loss of membrane E-cadherin expression and the gain of mesenchymal markers positivity. In the field of colorectal cancer(CRC), first data about EMT was published in 1995 and more than 400 papers had been written up to March 2016. Most of them are focused on the molecular pathways and experimentally-proved chemoresistance. In the present article, an update in the field of EMT in CRC based on the review of the literature and personal experience of the authors is presented. The information about the molecular and immunohistochemical(IHC) particularities of these processes and their possible role in the prognosis of CRC were also up-dated. This article focuses on the IHC quantification of the EMT, the immunoprofile of tumor buds and on the relation between EMT, angiogenesis, and stem cells activation. The EMT-induced chemoresistance vs chemotherapyor radiotherapy-induced EMT and cellular senescence was also synthesized for both conventional and targeted therapy. As a future perspective, the EMTangiogenesis-stemness link could be used as a possible valuable parameter for clinical follow-up and targeted therapeutic oncologic management of patients with CRC. Association of dexamethasone and angiotensin converting enzyme inhibitors combined with conventional chemotherapies could have clinical benefits in patients with CRC. The main conclusion is that, although many studies have been published, the EMT features are still incompletely elucidated and newly discovered EMT markers provide confusing data in understanding this complicated process, which might have significant clinical impact.Simona Gurzu Camelia Silveanu Annamaria Fetyko Vlad Butiurca Zsolt Kovacs Ioan Jung 2016World Journal of Gastroenterology2016,22,30:8
4Pseudomembranous colitis associated with a triple therapy for Helicobacter pylori eradication显示文摘Helicobacter pylori(H.pylori)is one of the most common chronic bacterial infections in humans,affecting half of world’s population.Therapy for H.pylori infection has proven to be both effective and safe.The oneweek triple therapy including proton pump inhibitor,clarithromycin,and amoxicillin or metronidazole is still recommended as a first-line treatment to eradicate H.pylori infection in countries with low clarithromycin resistance.Generally,this therapy is well-tolerated,with only a few and usually minor side effects.However,rare but severe adverse effects such as pseudomembranous colitis have been reported,Clostridium difficile(C.difficile)infection being the main causative factor in all cases.We report the cases of two women who developed pseudomembranous colitis after a 1-wk triple therapy consisting of pantoprazole 20 mg bid,clarithromycin 500 mg bid,and amoxicillin 1 g bid to eradicate H.pylori infection.A limited colonoscopy showed typical appearance of pseudomembranous colitis,and the stool test for C.difficile toxins was positive.Rapid resolution of symptoms and negative C.difficile toxins were obtained in both patients with oral vancomycin.No relapse occurred during a four and eleven-month,respectively,follow up.These cases suggest that physicians should have a high index of suspicion for pseudomembranous colitis when evaluate patients with diarrhea following H.pylori eradication therapy.Anca Trifan Irina Girleanu Camelia Cojocariu Catalin Sfarti Ana Maria Singeap Carmen Dorobat Lucia Grigore Carol Stanciu 2013World Journal of Gastroenterology2013,19,42:5
5A systematic review and meta-analysis of laparoscopic versus open distal pancreatectomy for benign and malignant lesions of the pancreas: It’s time to randomize显示文摘Arianeb Mehrabi Mohammadreza Hafezi Jalal Arvin Majid Esmaeilzadeh Camelia Garoussi Golnaz Emami Julia K?ssler-Ebs Beat Peter Müller-Stich Markus W. Büchler Thilo Hackert Markus K. Diener 2014Surgery2014,,:4
6Evaluation of oxidative stress levels in obesity and diabetes by the free oxygen radical test and free oxygen radical defence assays and correlations with anthropometric and laboratory parameters显示文摘BACKGROUND Obesity and diabetes are associated with high levels of oxidative stress.In Romanian patients with obesity and(or)diabetes,this association has not been sufficiently explored.AIM To evaluate oxidative stress in obese and(or)diabetic subjects and to investigate the possible correlations between oxidative stress and anthropometric/biochemical parameters.METHODS Oxidative stress was evaluated from a single drop of capillary blood.Reactive oxygen species(ROS)were evaluated using the free oxygen radical test(FORT).The free oxygen radical defence(FORD)assay was used to measure antioxidant levels.RESULTS FORT levels were higher in obese subjects(3.04±0.36 mmol/L H2O2)vs controls(2.03±0.14 mmol/L H2O2)(P<0.0001).FORD levels were lower in obese subjects(1.27±0.13 mmol/L Trolox)vs controls(1.87±1.20 mmol/L Trolox)(P=0.0072).Obese diabetic subjects had higher FORT values(3.16±0.39 mmol/L H2O2)vs non-diabetic counterparts(2.99±0.33 mmol/L H2O2)(P=0.0233).In obese subjects,FORT values correlated positively with body mass index(BMI)(r=0.48,P=0.0000),waist circumference(WC)(r=0.31,P=0.0018),fasting plasma glucose(FPG)(r=0.31,P=0.0017),total cholesterol(TC)(r=0.27,P=0.0068)and uric acid(r=0.36,P=0.0001).FORD values correlated negatively with BMI(r=-0.43,P=0.00001),WC(r=-0.28,P=0.0049),FPG(r=-0.25,P=0.0130),TC(r=-0.23,P=0.0198)and uric acid(r=-0.35,P=0.0002).In obese diabetic subjects,FORT values correlated positively with BMI(r=0.49,P=0.0034)and TC(r=0.54,P=0.0217).FORD values were negatively associated with BMI(r=-0.54,P=0.0217)and TC(r=-0.58,P=0.0121).CONCLUSION Oxidative stress levels,as measured by the FORT and FORD assays,were higher in obese subjects vs controls.ROS levels were elevated in diabetic obese patients vs obese non-diabetic patients and controls.Mihnea-Alexandru Găman Mirela Elena Epîngeac Camelia Cristina Diaconu Amelia Maria Găman 2020World Journal of Diabetes2020,11,5:3
7Establishment of Withania somnifera Hairy Root Cultures for the Production of Withanolide A显示文摘Withania sominifera (Indian ginseng) was transformed by Agrobacterium rhizogenes. Explants from seedling roots, stems, hypocotyls, cotyledonary nodal segments, cotyledons and young leaves were inoculated with A. rhizogenes strain R1601. Hairy (transformed) roots were induced from cotyledons and leaf explants. The transgenic status of hairy roots was confirmed by polymerase chain reaction using nptII and rolB specific primers and, subsequently, by Southern analysis for the presence of nptII and rolB genes in the genomes of transformed roots. Four clones of hairy roots were established; these differed in their morphology. The doubling time of faster growing cultures was 8-14 d with a fivefold increase in biomass after 28 d compared with cultured, non-transformed seedling roots. MS-based liquid medium was superior for the growth of transformed roots compared with other culture media evaluated (SH, LS and N6), with MS-based medium supplemented with 40 g/L sucrose being optimal for biomass production. Cultured hairy roots synthesized withanolide A, a steroidal lactone of medicinal and therapeutic value. The concentration of withanolide A in transformed roots (157.4 μg/g dry weight) was 2.7-fold more than in non-transformed cultured roots (57.9 μg/g dry weight).Hosakatte N. Murthy Camelia Dijkstra Paul Anthony Daniel A. White Mike R. Davey J. Brian Power Eun J. Hahn Kee Y. Paek 2008Journal of Integrative Plant Biology2008,50,8:3
8Local Therapy with Continued EGFR Tyrosine Kinase Inhibitor Therapy as a Treatment Strategy in EGFR-Mutant Advanced Lung Cancers That Have Developed Acquired Resistance to EGFR Tyrosine Kinase Inhibitors显示文摘Helena A. Yu Camelia S. Sima James Huang Stephen B. Solomon Andreas Rimner Paul Paik M. Catherine Pietanza Christopher G. Azzoli Naiyer A. Rizvi Lee M. Krug Vincent A. Miller Mark G. Kris Gregory J. Riely 2013Journal of Thoracic Oncology2013,,3:2
9Platinum nanoparticles coated by graphene layers: A low-metal loading catalyst for methanol oxidation in alkaline media显示文摘Platinum catalysts play a major role in the large scale commercialization of direct methanol fuel cells(DMFC).Here,we present a procedure to create a nanostructural graphene-platinum(Gr Pt)composite containing a small amount(5.3 wt%)of platinum nanoparticles coated with at least four layers of graphene.The composite,as Gr Pt ink,was deposited on a glassy carbon electrode and its electrocatalytic activity in a methanol oxidation reaction(MOR)was evaluated in a 1 M CH3OH/1 M NaOH solution.The results indicated an enhanced catalytic performance of GrPt towards MOR in alkaline media compared with the Pt/C material.Electron energy-loss spectroscopy and X-ray photoelectron spectroscopy(recorded before and after the electrochemical assays)were employed to analyze the changes in the chemical composition of the nanomaterial and to explain the transformations that took place at the electrode surface.Our findings suggest that growing of graphene on platinum nanoparticles improve the catalytic performance of platinum-graphene composites towards MOR in alkaline media.Camelia Berghian-Grosan Teodora Radu Alexandru R.Biris Monica Dan Cezara Voice Fumiya Watanabe Alexandru S.Biris Adriana Vulcu 2020Journal of Energy Chemistry2020,29,1:2
10Axillary dissection versus no axillary dissection in patients with sentinel-node micrometastases (IBCSG 23–01): a phase 3 randomised controlled trial显示文摘Viviana Galimberti Bernard F Cole Stefano Zurrida Giuseppe Viale Alberto Luini Paolo Veronesi Paola Baratella Camelia Chifu Manuela Sargenti Mattia Intra Oreste Gentilini Mauro G Mastropasqua Giovanni Mazzarol Samuele Massarut Jean-Rémi Garbay Janez Zgajn 2013Lancet Oncology2013,,4:2
11Some heuristic methods for solving p-median problems with a cover- age constraint 显示文摘SaEZ-AGUADO J S CAMELIA P T 2012European Journal of Operational Research2012,220,:1
12Vascularendothelium in atherosclerosis显示文摘Anca V Sima Camelia S Stancu Maya Simionescu 2009Cell and Tissue Reserch2009,335,:1
13Electrostatic Spray Deposited Zinc Oxide Films for Gas Sensor Applications 显示文摘Camelia M G Joop S Marline L 2007Applied Surface Science2007,253,18:1
14Application of the empirical mode decomposition and Hilbert - Huang transform to reflection seismic data显示文摘Bradley M B Camelia K 2007Geophysics2007,72,3:1
15Detection of organophosphorus insecticides with immobilized acetylcholinesterase-comparative study of two enzyme sensors显示文摘Silvana A Alina A Camelia B 2002Anal Bioanal Chem2002,374,:1
16Rapid optimization of electroporation conditions for plant cells, protoplasts, and pollen显示文摘James A. Saunders Chin Ho Lin Bi Huei Hou Jianping Cheng Nombasa Tsengwa Jhy Jhu Lin Camelia R. Smith Maria S. McIntosh Sally Wert1 1995Molecular Biotechnology1995,,3:1
17Antibodies against hu- man oxidized low-density lipoprotein (LDL) as markers for human plasma modified lipoproteins 显示文摘Luminita Ra Camelia S Felicia A 2004Med Sci Monit2004,10,:1
18Aiming for sustainability in the tour operating business显示文摘CAMELIA MT 0,,13:1
19Multi-objective OLSR for proactive routing in MANET with delay,energy,and link lifetime predictions显示文摘Guo Zhi-hao Malakooti S Camelia S 2011Applied Mathematical Modeling2011,35,3:1
20Tests of quantum gravity from observations of gamma - ray bursts 显示文摘Amelino - Camelia G Ellis J Mavromatos N E 1998Nature1998,393,:1
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