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| 1 | Promoter hypermethylation of CDH1, FHIT, MTAP and PLAGL1 in gastric adenocarcinoma in individuals from Northern Brazil显示文摘AIM: To evaluate the methylation status of CDH1, FHIT, MTAP and PLAGL1 promoters and the association of these findings with clinico-pathological characteristics. METHODS: Methylation-specific PCR (MSP) assay was performed in 13 nonneoplastic gastric adenocarcinoma, 30 intestinal-type gastric adenocarcinoma and 35 diffuse- type gastric adenocarcinoma samples from individuals in Northern Brazil. Statistical analyses were performed using the chi-square or Fisher’s exact test to assess associations between methylation status and clinico- pathological characteristics. RESULTS: Hypermethylation frequencies of CDH1, FHIT, MTAP and PLAGL1 promoter were 98.7%, 53.9%, 23.1% and 29.5%, respectively. Hypermethylation of three or four genes revealed a significant association with diffuse-type gastric cancer compared with nonneoplastic cancer. A higher hypermethylation frequency wassignificantly associated with H pylori infection in gastric cancers, especially with diffuse-type. Cancer samples without lymph node metastasis showed a higher FHIT hypermethylation frequency. MTAP hypermethylation was associated with H pylori in gastric cancer samples, as well as with diffuse-type compared with intestinal-type. In diffuse-type, MTAP hypermethylation was associated with female gender. CONCLUSION: Our findings show differential gene methylation in tumoral tissue, which allows us to conclude that hypermethylation is associated with gastric carcinogenesis. MTAP promoter hypermethylation can be characterized as a marker of diffuse-type gastric cancer, especially in women and may help in diagnosis, prognosis and therapies. The H pylori infectious agent was present in 44.9% of the samples. This infection may be correlated with the carcinogenic process through the gene promoter hypermethylation, especially the MTAP promoter in diffuse-type. A higher H pylori infection in diffuse-type may be due to greater genetic predisposition. | Mariana Ferreira Leal Eleonidas Moura Lima Patrícia Natália Oliveira Silva Paulo Pimentel Assumpo Danielle Queiroz Calcagno Spencer Luiz Marques Payo Rommel Rodríguez Burbano Marília de Arruda Cardoso Smith | 2007 | World Journal of Gastroenterology2007,13,18: | 24 |
| 2 | Role of mi RNAs and their potential to be useful as diagnostic and prognostic biomarkers in gastric cancer显示文摘Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic mi RNAs and downregulated tumour-suppressor mi RNAs in this type of cancer. In this review, we provide an overview of the role of mi RNAs, pointing to their potential to be useful as diagnostic and/or prognostic biomarkers in gastric cancer. Moreover, we discuss the influence of polymorphisms and epigenetic modifications on mi RNA activity. | Kelly Cristina da Silva Oliveira Taíssa Maíra Thomaz Araújo Camila Inagaki Albuquerque Gabriela Alcantara Barata Carolina Oliveira Gigek Mariana Ferreira Leal Fernanda Wisnieski Fernando Augusto Rodrigues Mello Junior André Salim Khayat Paulo Pimentel de Assumpcao Rommel Mário Rodriguez Burbano Marília Cardoso Smith Danielle Queiroz Calcagno | 2016 | World Journal of Gastroenterology2016,22,35: | 11 |
| 3 | Interrelationship between chromosome 8 aneuploidy,C-MYC amplification and increased expression in individuals from northern Brazil with gastric adenocarcinoma显示文摘AIM: To investigate chromosome 8 numerical aberra- tions, C-MYC oncogene alterations and its expression in gastric cancer and to correlate these findings with histo- pathological characteristics of gastric tumors. METHODS: Specimens were collected surgically from seven patients with gastric adenocarcinomas. Immu- nostaining for C-MYC and dual-color fluorescence in situ hybridization (FISH) for C-MYC gene and chromosome 8 centromere were performed. RESULTS: All the cases showed chromosome 8 aneu- ploidy and C-MYC amplification, in both the diffuse and intestinal histopathological types of Lauren. No significant difference (P < 0.05) was observed between the level ofchromosome 8 ploidy and the site, stage or histological type of the adenocarcinomas. C-MYC high amplification, like homogeneously stained regions (HSRs) and double minutes (DMs), was observed only in the intestinal-type. Structural rearrangement of C-MYC, like translocation, was observed only in the diffuse type. Regarding C-MYC gene, a significant difference (P < 0.05) was observed between the two histological types. The C-MYC protein was expressed in all the studied cases. In the intestinal- type the C-MYC immunoreactivity was localized only in the nucleus and in the diffuse type in the nucleus and cytoplasm. CONCLUSION: Distinct patterns of alterations between intestinal and diffuse types of gastric tumors support the hypothesis that these types follow different genetic path- ways. | Danielle Queiroz Calcagno Mariana Ferreira Leal Aline Damaceno Seabra Andre Salim Khayat Elizabeth Suchi Chen Samia Demachki Paulo Pimentel Assumpcao Mario Henrique Girao Faria Silvia Helena Barem Rabenhorst Márcia Valéria Pitombeira Ferreira Marília de Arruda Cardoso Smith Rommel Rodríguez Burbano | 2006 | World Journal of Gastroenterology2006,12,38: | 9 |
| 4 | MYC and gastric adenocarcinoma carcinogenesis显示文摘MYC is an oncogene involved in cell cycle regulation,cell growth arrest,cell adhesion,metabolism,ribosome biogenesis,protein synthesis,and mitochondrial function. It has been described as a key element of several carcinogenesis processes in humans. Many studies have shown an association between MYC deregulation and gastric cancer. MYC deregulation is also seen in gastric preneoplastic lesions and thus it may have a role in early gastric carcinogenesis. Several studies have suggested that amplification is the main mechanism of MYC deregulation in gastric cancer. In the present review,we focus on the deregulation of the MYC oncogene in gastric adenocarcinoma carcinogenesis,including its association with Helicobacter pylori (H pylori) and clinical applications. | Danielle Queiroz Calcagno Mariana Ferreira Leal Paulo Pimentel Assumpo Marília de Arruda Cardoso Smith Rommel Rodríguez Burbano | 2008 | World Journal of Gastroenterology2008,14,39: | 8 |
| 5 | Clinical implication of 14-3-3 epsilon expression in gastric cancer显示文摘AIM:To evaluate for the first time the protein and mRNA expression of 14-3-3εin gastric carcinogenesis.METHODS:14-3-3εprotein expression was determined by western blotting,and mRNA expression was examined by real-time quantitative RT-PCR in gastric tumors and their matched non-neoplastic gastric tissue samples.RESULTS:Authors observed a significant reduction of 14-3-3εprotein expression in gastric cancer(GC)samples compared to their matched non-neoplastic tissue.Reduced levels of 14-3-3εwere also associated with diffuse-type GC and early-onset of this pathology.Our data suggest that reduced 14-3-3εmay have a role in gastric carcinogenesis process.CONCLUSION:Our results reveal that the reduced 14-3-3εexpression in GC and investigation of 14-3-3ε interaction partners may help to elucidate the carcino-genesis process. | Mariana Ferreira Leal Danielle Queiroz Calcagno Smia Demachki Paulo Pimentel Assumpo Roger Chammas Rommel Rodríguez Burbano Marília de Arruda Cardoso Smith | 2012 | World Journal of Gastroenterology2012,18,13: | 6 |
| 6 | Green tea polyphenols inhibit testosterone production in rat Leydig cells显示文摘这研究调查了绿茶摘录(GTE ) 和它的多酚的尖锐效果成分,(-)-epigallocatechin-3-gallate (EGCG ) 和(-)-epicatechin (EC ) ,在由在 vitro 的老鼠 Leydig 房间的基础、刺激的睾丸激素生产上。在一个 Percoll 坡度净化的 Leydig 房间与 GTE, EGCG 或 EC 和睾丸激素先锋 androstenedione 为 3 h 被孵化,当面或任何一个蛋白质 kinase A (PKA ) 的缺席或蛋白质 kinase C (PKC ) 使活跃之物。效果的可逆性被 pretreating 房间与 GTE 或 EGCG 为 15 min 学习,允许他们为 1 h 恢复并且为有人的 chorionic 的 2 h 质问他们 gonadotropin (hCG ) , luteinizing 荷尔蒙释放荷尔蒙(LHRH ) , 22 (R)-hydroxycholesterol 或 androstenedione。GTE 和 EGCG,然而并非 EC,禁止了基础、刺激 kinase 的睾丸激素生产。在预告的处理条件下面, hCG/LHRH-stimulated 或 22 (R)-hydroxycholesterol-induced 睾丸激素生产上的 GTE/EGCG 的更高的集中的禁止的效果被维持,而支持 androstenedione 的睾丸激素生产回来了控制层次。在 GTE/EGCG 的更低的集中, 22 (R)-hydroxycholesterol-supported 睾丸激素生产上的这些多酚的禁止的效果被颠倒。GTE 的禁止的效果可以被它一个 gallate 组的主要部件, EGCG,和存在的行动在它的结构解释在禁止睾丸激素生产为它的高功效似乎重要。位于 GTE 和 EGCG 的效果下面的机制包含表明 P450 方面链劈开酶和 17-hydroxysteroid 脱氢酶功能的小径,以及抑制的 PKA/PKC 的抑制。 | Marina S. Figueiroa Juliany S. B. Cesar Vieira Disleide S. Leite Ruben C. O. Andrade Filho Fabiano Ferreira Patricia S. Gouveia Daniel P. Udrisar Maria I. Wanderley | 2009 | Asian Journal of Andrology2009,11,3: | 4 |
| 7 | Gene and cell therapy based treatment strategies for inflammatory bowel diseases显示文摘Inflammatory bowel diseases(IBD)are a group of chronic inflammatory disorders most commonly affecting young adults.Currently available therapies can result in induction and maintenance of remission,but are not curative and have sometimes important side effects.Advances in basic research in IBD have provided new therapeutic opportunities to target the inflammatory process involved.Gene and cell therapy approaches are suitable to prevent inflammation in the gastrointestinal tract and show therefore potential in the treatment of IBD.In this review,we present the current progress in the field of both gene and cell therapy and future prospects in the context of IBD.Regarding gene therapy,we focus on viral vectors and their applications in preclinical models.The focus for cell therapy is on regulatory T lymphocytes and mesenchymal stromal cells,their potential for the treatment of IBD and the progress made in both preclinical models and clinical trials. | Sander van der Marel Anna Majowicz Sander van Deventer Harald Petry Daniel W Hommes Valerie Ferreira | 2011 | World Journal of Gastrointestinal Pathophysiology2011,2,6: | 3 |
| 8 | Exercise manual for liver disease patients显示文摘AIM: To increase inspiratory muscle strength and improve the quality of life of candidates for liver transplantation.METHODS: Twenty-three candidates for liver transplantation participated in the control group and 14 made up the intervention group. The control group consisted of 18 men and 5 women, body mass index(BMI) 27.3 ± 4.5 kg/m2 and Model for End-Stage Liver Disease(MELD) 18.2 ± 6.1. The intervention group consisted of 11 men and 3 women, BMI 28.6 ± 5.4 kg/m2 and MELD 18 ± 4.5. The presence or absence of ascites was identified in the first patient evaluation and after three months. We evaluated maximal inspiratory pressure(MIP) and maximal expiratory pressure, spirometry, root mean square(RMS) of diaphragm and rectus abdominis, and the quality of life. The exercises were performed daily by patients at home for three months and were supervised at distance monthly. The manual consisted of diaphragmatic breathing exercises, diaphragmatic isometric exercise, Threshold IMT®, lifting upper limbs with a bat and strengthening the abdomen. RESULTS: There was significant difference(P = 0.01) between the first(initial) and the third month(final) MIP in the control group and in the intervention group, but there was no difference(P = 0.45) between the groups.The RMS of the diaphragm was lower(P = 0.001) and the functional capacity was higher(P = 0.006) in the intervention group compared to the control. The general health and mental health domains received higher scores after three months in the control group(P = 0.01) and the intervention group(P = 0.004), but there was no significant difference between them. The comparison between the presence of initial ascites with the presence of ascites was performed after three months in the control group(P = 0.083) and intervention group(P = 0.31). There was no significant difference, in relation to the presence of ascites after three months between groups(P = 0.21). In the intervention group, patients with ascites at the end of the time period had decreased scores on the social aspects SF-36 domain(P = 0.023) compared to those who had no ascites. CONCLUSION: The proposed exercises provide an increase in the inspiratory muscle strength and improve functional capacity, consequently bettering the quality of life of liver disease patients. | Vivian Limongi Daniele Costa Dos Santos Aurea Maria de Oliveira da Silva Ilka de Fátima Santana Ferreira Boin Raquel Silveira Bello Stucchi | 2016 | World Journal of Transplantation2016,6,2: | 3 |
| 9 | Women in the boardroom and their impact on governance and performance显示文摘 | Renée B. Adams Daniel Ferreira | 2009 | Journal of Financial Economics2009,,2: | 3 |
| 10 | Balanced propofol sedation administered by nonanesthesiologists:The first Italian experience显示文摘AIM:To assess the efficacy and safety of a balanced approach using midazolam in combination with propofol,administered by nonanesthesiologists,in a large series of diagnostic colonoscopies.METHODS:Consecutive patients undergoing diagnostic colonoscopy were sedated with a single dose of midazolam(0.05 mg/kg)and lowdose propofol(starter bolus of 0.5 mg/kg and repeated boluses of 10 to 20 mg).Induction time and deepest level of sedation,adverse and serious adverse events,as well as recovery times,were prospectively assessed.Cecal intubation and adenoma detection rates were also collected.RESULTS:Overall,1593 eligible patients were included.The median dose of propofol administered was 70 mg(range:40120 mg),and the median dose of midazolam was 2.3 mg(range:24 mg).Median induction time of sedation was 3 min(range:14 min),and median recovery time was 23 min(range:1040 min).A moderate level of sedation was achieved in 1561(98%) patients,whilst a deep sedation occurred in 32(2%) cases.Transient oxygen desaturation requiring further oxygen supplementation occurred in 8(0.46%;95% CI:0.2%0.8%)patients.No serious adverse event was observed.Cecal intubation and adenoma detection rates were 93.5%and 23.4%(27.8%for male and 18.5%for female,subjects),respectively.CONCLUSION:A balanced sedation protocol provided a minimalization of the dose of propofol needed to target a moderate sedation for colonoscopy,resulting in a high safety profile for nonanesthesiologist propofol sedation. | Alessandro Repici Nico Pagano Cesare Hassan Alessandra Carlino Giacomo Rando Giuseppe Strangio Fabio Romeo Angelo Zullo Elisa Ferrara Eva Vitetta Daniel de Paula Pessoa Ferreira Silvio Danese Massimo Arosio Alberto Malesci | 2011 | World Journal of Gastroenterology2011,17,33: | 2 |
| 11 | Vascular-confined multi-passage discoidal nanoconstructs for the low-dose docetaxel inhibition of triple-negative breast cancer growth显示文摘Taxane efficacy in triple negative breast cancer(TNBC)is limited by insufficient tumor accumulation and severe off-target effects.Nanomedicines offer a unique opportunity to enhance the anti-cancer potency of this drug.Here,1,000 nm×400 nm discoidal polymeric nanoconstructs(DPN)encapsulating docetaxel(DTXL)and the near infrared compound Iipid-Cy5 were engineered.DPN were obtained by filling multiple times cylindrical wells in a poly(vinyl alcohol)template with a polymer mixture comprising poly(lactic-co-glycolic acid)(PLGA)and poly(ethylene glycol)diacrylate(PEG-DA)chains together with therapeutic and imaging agents.The resulting“multi-passage”DPN exhibited higher DTXL loading,Iipid-Cy5 stability,and stiffness as compared to the conventional'single-passage'approach.Confocal microscopy confirmed that DTXL-DPN were not taken up by MDA-MB-231 cells but would rather sit next to the cell membrane and slowly release DTXL thereof.Empty DPN had no toxicity on TNBC cells,whereas DTXL-DPN presented a cytotoxic potential comparable to free DTXL(IC_(50)=2.6 nM±1.0 nM vs.7.0 nM±1.09 nM at 72 h).In orthotopic murine models,DPN accumulated in TNBC more efficiently than free-DTXL.With only 2 mg/kg DTXL,intravenously administered every 2 days for a total of 13 treatments,DTXL-DPN induced tumor regression and were associated to an overall 80%survival rate as opposed to a 30%survival rate for free-DTXL,at 120 days.All untreated mice succumbed before 90 days.Collectively,this data demonstrates that vascular confined multi-passage DPN,biomimicking the behavior of circulating platelets,can efficiently deliver chemotherapeutic molecules to malignant tissues and effectively treat orthotopic TNBC at minimal taxane doses. | Alessia Felici Daniele Di Mascolo Miguel Ferreira Simone Lauciello Luca Bono Andrea Armirotti Arunkumar Pitchaimani Anna Lisa Palange Paolo Decuzzi | 2022 | Nano Research2022,15,1: | 2 |
| 12 | Recovery of zinc sulphate from industrial effluents by liquid - liquid extraction using D2EHPA ( di - 2 - ethylhexyl phosphoric acid) 显示文摘 | Daniel Dayrell Pereira Srnia Denise Ferreira Rocha Marcelo Borges Mansur | 2007 | Separation and Purification Technology2007,53,1: | 1 |
| 13 | Pro- and Anti-inflammatory Cytokines in Steatosis and Steatohepatitis显示文摘 | Fabiola Rabelo Claudia P. M. S. Oliveira Joel Faintuch Daniel F. C. Mazo Vicencia M. R. Lima Jose Tadeu Stefano Hermes V. Barbeiro Francisco G. Soriano Venancio A. Ferreira Alves Flair J. Carrilho | 2010 | Obesity Surgery2010,,7: | 1 |
| 14 | Plant extracts to control Alternaria alternata in Murcott tangor fruits显示文摘 | Daniel Diego Costa Carvalho Eduardo Alves Renato Barbosa Camargos Denilson Ferreira Oliveira José Roberto Soares Scolforo Douglas Ant?nio de Carvalho Tereza Raquel Samia Batista | 2011 | Revista Iberoamericana de Micologia2011,,4: | 1 |
| 15 | High HIF-1α expression genotypes in oral lichen planus显示文摘 | Carlos Alberto Carvalho Fraga Lucas Rodrigues Alves Luciano Marques-Silva Adriana Alkmim Sousa Antonio Sérgio Barcala Jorge Sabrina Ferreira Jesus Daniel Nogueira Vilela Ugo Borges Pinheiro Kimberly Marie Jones Alfredo Maurício Batista Paula André Luiz Se | 2013 | Clinical Oral Investigations2013,,9: | 1 |
| 16 | Antithrombotic treatment in chronic heart failure and sinus rhythm: Systematic review显示文摘AIM: To assess the efficacy and safety of antithrombotic drugs(antiplatelet or anticoagulant drugs) compared to no antithrombotic treatment or placebo in patients with heart failure(HF) and sinus rhythm. METHODS: We searched Medline and Cochrane Library for randomized controlled trials evaluating antithrombotic treatment and no antithrombotic treatment in patients with HF and sinus rhythm. Risk ratio(RR) and 95%CIs were estimated performing meta-analysis with random effects method. RESULTS: Two studies met the inclusion criteria: Heart failure Long-term Antithrombotic Study and Warfarin/Aspirin Study in Heart failure, with 336 patients and mean follow-up 1.8-2.25 years. Stroke risk was not reduced by acetylsalicylic acid(RR = 1.18, 95%CI: 0.17-8.15), oral anticoagulation(RR = 0.30, 95%CI: 0.03-2.65) or overall antithrombotic drugs(RR = 0.52, 95%CI: 0.10-2.74). Acetylsalicylic acid showed a significant increased risk of worsening HF(RR = 1.78, 95%CI: 1.08-2.92), while oral anticoagulation had no impact in this outcome(RR = 1.03, 95%CI: 0.61-1.75). Overall antithrombotic drugs showed a significant risk increase of major bleeding(RR = 6.99, 95%CI: 0.89-54.64). CONCLUSION: Best available evidence does not support the routine use of antithrombotic drugs in patients with HF and sinus rhythm. These drugs, particularly oral anti-coagulation has the hazard of increase significantly major bleeding risk. | Daniel Caldeira Inês Cruz Rita Calé Cristina Martins Helder Pereira Joaquim J Ferreira Fausto J Pinto Joo Costa | 2015 | World Journal of Meta-Analysis2015,3,1: | 1 |
| 17 | Sliding Transformers for Linear Contactless Power Delivery显示文摘 | Jacobus M Barnard Jan A Ferreira Jacobus Daniel van WyK | 1997 | IEEE Transactions on Industrial Electronics1997,44,: | 1 |
| 18 | Understanding the relationship between founder–CEOs and firm performance显示文摘 | Renée Adams Heitor Almeida Daniel Ferreira | 2008 | Journal of Empirical Finance2008,,1: | 1 |
| 19 | Trypanocidal activity and acute toxicity assessment of triterpene acids显示文摘 | DANIELE D FERREIRA S ESPERANDIM V R | 2010 | Parasitology Research2010,106,4: | 1 |
| 20 | Increased oxidative stress in prefrontal cortex and hippocampus is related to depressive-like behavior in streptozotocin-diabetic rats显示文摘 | Helen de Morais Camila P. de Souza Luisa M. da Silva Daniele M. Ferreira Maria Fernanda Werner Roberto Andreatini Joice M. da Cunha Janaina M. Zanoveli | 2014 | Behavioural Brain Research2014,,: | 1 |