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420篇 您的检索式:作者名="ALVES D"
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1Enamel microabrasion: An overview of clinical and scientific considerations显示文摘Superficial stains and irregularities of the enamelare generally what prompt patients to seek dental intervention to improve their smile. These stains or defects may be due to hypoplasia, amelogenesis imperfecta, mineralized white spots, or fluorosis, for which enamel microabrasion is primarily indicated. Enamel microabrasion involves the use of acidic and abrasive agents, such as with 37% phosphoric acid and pumice or 6% hydrochloric acid and silica, applied to the altered enamel surface with mechanical pressure from a rubber cup coupled to a rotatory mandrel of a lowrotation micromotor. If necessary, this treatment can be safely combined with bleaching for better esthetic results. Recent studies show that microabrasion is a conservative treatment when the enamel wear is minimal and clinically imperceptible. The most important factor contributing to the success of enamel microabrasion is the depth of the defect, as deeper, opaque stains, such as those resulting from hypoplasia, cannot be resolved with microabrasion, and require a restorative approach. Surface enamel alterations that result from microabrasion, such as roughness and microhardness, are easily restored by saliva. Clinical studies support the efficacy and longevity of this safe and minimally invasive treatment. The present article presents the clinical and scientific aspects concerning the microabrasion technique, and discusses the indications for and effects of the treatment, including recent works describing microscopic and clinical evaluations.Núbia Inocencya Pavesi Pini Daniel Sundfeld-Neto Flavio Henrique Baggio Aguiar Renato Herman Sundfeld Luis Roberto Marcondes Martins José Roberto Lovadino Débora Alves Nunes Leite Lima 2015World Journal of Clinical Cases2015,3,1:6
2Relationship between Th17 immune response and cancer显示文摘Cancer is the second leading cause of death worldwide and epidemiological projections predict growing cancer mortality rates in the next decades.Cancer has a close relationship with the immune system and,although Th17 cells are known to play roles in the immune response against microorganisms and in autoimmunity,studies have emphasized their roles in cancer pathogenesis.The Th17 immune response profile is involved in several types of cancer including urogenital,respiratory,gastrointestinal,and skin cancers.This type of immune response exerts pro and antitumor functions through several mechanisms,depending on the context of each tumor,including the protumor angiogenesis and exhaustion of T cells and the antitumor recruitment of T cells and neutrophils to the tumor microenvironment.Among other factors,the paradoxical behavior of Th17 cells in this setting has been attributed to its plasticity potential,which makes possible their conversion into other types of T cells such as Th17/Treg and Th17/Th1 cells.Interleukin(IL)-17 stands out among Th17-related cytokines since it modulates pathways and interacts with other cell profiles in the tumor microenvironment,which allow Th17 cells to prevail in tumors.Moreover,the IL-17 is able to mediate pro and antitumor processes that influence the development and progression of various cancers,being associated with variable clinical outcomes.The understanding of the relationship between the Th17 immune response and cancer as well as the singularities of carcinogenic processes in each type of tumor is crucial for the identification of new therapeutic targets.Hanna Santos Marques Breno Bittencourt de Brito Filipe Antônio França da Silva Maria Luísa Cordeiro Santos Júlio César Braga de Souza Thiago Macêdo Lopes Correia Luana Weber Lopes Nayara Silva de Macêdo Neres Rafael Santos Dantas Miranda Dórea Anna Carolina Saúde Dantas Lorena Lôbo Brito Morbeck Iasmin Souza Lima Amanda Alves de Almeida Maiara Raulina de Jesus Dias Fabrício Freire de Melo 2021World Journal of Clinical Oncology2021,12,10:5
3Percutaneous radiofrequency ablation for early hepatocellular carcinoma: Risk factors for survival显示文摘AIM: To evaluate outcomes of radiofrequency ablation(RFA) therapy for early hepatocellular carcinoma(HCC) and identify survival- and recurrence-related factors. METHODS: Consecutive patients diagnosed with early HCC by computed tomography(CT) or magnetic resonance imaging(MRI)(single nodule of ≤ 5 cm, or multi-(up to 3) nodules of ≤ 3 cm each) and who underwent RFA treatment with curative intent between January 2010 and August 2011 at the Instituto do Cancer do Estado de S o Paulo, Brazil were enrolled in the study. RFA of the liver tumors(with 1.0 cm ablative margin) was carried out under CT-fluoro scan and ultrasonic image guidance of the percutaneous ablation probes. Procedure-related complications were recorded. At 1-mo post-RFA and 3-mo intervals thereafter, CT and MRI were performed to assess outcomes of complete response(absence of enhancing tissue at the tumor site) or incomplete response(enhancing tissue remaining at the tumor site). Overall survival and diseasefree survival rates were estimated by the Kaplan-Meier method and compared by the log rank test or simple Cox regression. The effect of risk factors on survival was assessed by the Cox proportional hazard model. RESULTS: A total of 38 RFA sessions were performed during the study period on 34 patients(age in years: mean, 63 and range, 49-84). The mean follow-up time was 22 mo(range, 1-33). The study population showed predominance of male sex(76%), less severe liver disease(Child-Pugh A, n = 26; Child-Pugh B, n = 8), and single tumor(65%). The maximum tumor diameters ranged from 10 to 50 mm(median, 26 mm). The initial(immediately post-procedure) rate of RFAinduced complete tumor necrosis was 90%. The probability of achieving complete response was significantly greater in patients with a single nodule(vs patients with multi-nodules, P = 0.04). Two patients experienced major complications, including acute pulmonary edema(resolved with intervention) and intestinal perforation(led to death). The 1- and 2-year overall survival rates were 82% and 71%, respectively. Sex, tumor size, initial response, and recurrence status influenced survival, but did not reach the threshold of statistical significance. Child-Pugh class and the model for end-stage liver disease score were identified as predictors of survival by simple Cox regression, but only Child-Pugh class showed a statistically significant association to survival in multiple Cox regression analysis(HR = 15; 95%CI: 3-76 mo; P = 0.001). The 1-and 2-year cumulative disease-free survival rates were 65% and 36%, respectively. CONCLUSION: RFA is an effective therapy for local tumor control of early HCC, and patients with preserved liver function are the best candidates.Luciana Kikuchi Marcos Menezes Aline L Chagas Claudia M Tani Regiane SSM Alencar Marcio A Diniz Venncio AF Alves Luiz Augusto Carneiro D’Albuquerque Flair José Carrilho 2014World Journal of Gastroenterology2014,20,6:5
4Effects of essential oils on Aedes aegypti larvae: Alternatives to environmentally safe insecticides显示文摘W.J. Silva G.A.A. Dória R.T. Maia R.S. Nunes G.A. Carvalho A.F. Blank P.B. Alves R.M. Mar?al S.C.H. Cavalcanti 2007Bioresource Technology2007,,8:2
5Impact of Complex Crohn’s Disease on the Outcome of Laparoscopic Ileocecal Resection: A Comparative Clinical Study in 124 Patients显示文摘Perrine Goyer Arnaud Alves Frédéric Bretagnol Yoram Bouhnik Patrice Valleur Yves Panis 2009Diseases of the Colon & Rectum2009,,:2
6Clinical hematological and biochemical parameters in Swiss,BALB/c,C57BL/6 and B6D2F1 Mus musculus显示文摘Background:Animal models are widely used in scientific research in order to obtain information from a whole organism under a specific set of experimental conditions.Various lineages of mice have been used to investigate diseases and new therapeutic strategies,and,consequently,hematological and biochemical tests in these laboratory animals are essential to validate scientific studies.Our study seeks to establish reference values for hematological and biochemical parameters of four lineages of mice.Methods:We evaluated the hematological and biochemical profiles of 20 males and 20 females from the lineages Swiss(heterogeneous),BALB/c and C57BL/6(isogenic),and B6D2F1(hybrid),totaling 160 mice.Analysis were standardized using the systems pocH-100iV Diff™for 19 hematological parameters and VITROS®350 for 12 biochemical parameters.Results:Results are shown as means and standard deviation,grouped by lineage and genre.Comparing the values obtained in this study with the values from previous studies,some variations were detected,which could be explained by differences in methodologies or individual variability.Conclusion:Thus our study shows that knowledge and disclosure of the values of physiological parameters of laboratory animals is necessary,and emphasises the importance of considering variations influenced by gender,lineage and genotype in the choice of the best experimental model.Giorgio Silva-Santana Juliet Cunha Bax Débora Cristina Silva Fernandes Daniela Tendler Leibel Bacellar Cleber Hooper Alexandre Alves Souza Oliveira Dias Cristina Barbosa Silva Aline Moreira de Souza Simone Ramos Ricardo Alexandre Santos Thainara Ramos Pinto Mariana Antunes Ramão Ana Luíza Mattos-Guaraldi 2020Animal Models and Experimental Medicine2020,3,4:2
7NEW TOXOPLASMA GONDII GENOTYPES ISOLATED FROM FREE-RANGE CHICKENS FROM THE FERNANDO DE NORONHA, BRAZIL: UNEXPECTED FINDINGS显示文摘Dubey J P Rajendran C Costa D G C Ferreira L R Kwok O C H Qu D Su C Marvulo M F V Alves L C Mota R A Silva J C R 2010The Journal of Parasitology2010,,4:2
8Effects of a Saccharomyces cerevisiae yeast on ruminal fermentation and fibre degradation of maize silages in cows显示文摘Guedes C M Gon alves D Rodrigues M A M 2008Anim Feed Sci Tech2008,145,1:1
9Adsorption of chromium (VI) ion from aqueous solution by succinylated mercerized cellulose functionalized with quaternary ammonium groups显示文摘Leandro Vinícius Alves Gurgel Júlio César Perin de Melo Jorge Carvalho de Lena Laurent Frédéric Gil 2009Bioresource Technology2009,,13:1
10On systems of elliptic equations involving subcritical or critical Sobolev exponents显示文摘Alves C O Filho D C de M Souto M A S 2000Nonlinear Analysis2000,42,:1
11Inertia effects in axisymmetrically deformed cylindrical shells under axial impact显示文摘Karagiozova D Alves M Jones N 2000International Journal of Impact Engineering2000,24,:1
12A geometric interpretation for transmission real losses minimization through the optimal power flow and its influence on voltage collapse显示文摘Alves D A Costa G R M 2002Electric Power Systems Research2002,62,:1
13Laser-induced contamination mitigation on the ALADIN laser for ADM-Aeolus显示文摘Wernham D Alves J Pettazzi F 2010Proceedings ofSPIE(S0277-786X)2010,7842,:1
14Parameterized fast deeoupled power flow methods for obtaining the maximum loading point of power systems Part Ⅰ and Part Ⅱ显示文摘Alves D A Da Silva L C P Castro C A 2004Electric Power Systems Research2004,69,:1
15The relationship between temporal changes in blood pressure and changes in cogni- tive function : Atherosclerosis risk in communities (ARIC) study 显示文摘Alves de Moraes S Szklo M Knopman D 2002Prev Med2002,35,3:1
16Transition from progressive buckling to global bending of circular shells under axial impact-Part Ⅰ: Experimental and numerical observations 显示文摘KARAGIOZOVA D MarcIlio Alves 2004International Journal of Solids and Structures2004,41,:1
17Phosdhatidvlserine reverses reserpine: induced amnesia显示文摘ALVES C S ANDREATINI R CUNHA C D 2000European Journal of Pharmacology2000,404,12:1
18Life- threatening thromboeytopenia and nephrotic syndrome due to focal segmental glomerulosclerosis associated with pegy- lated interferon alpha-2b and ribavirin treatment for hepatitis 显示文摘Alves Couto C Costa Faria L Dias Ribeiro D 2006Liver Int2006,26,10:1
19Thermal decom- position and structural reconstruction effect on Mg-Fe-based hydro- talcite compounds 显示文摘Ferreira O P Alves O L Gouveia D X et ol 2004Journal of Solid State Chemistry2004,177,9:1
20Transition from progressive buckling to global bending of circular shells under axial impact-Part Ⅱ Theoretical analysis 显示文摘KARAGIOZOVA D Marcllio Alves 2004International Journal of Solids and Structures2004,41,:1
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