oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 189 )

2018 ( 283 )

2017 ( 286 )

2016 ( 385 )

Custom range...

Search Results: 1 - 10 of 224302 matches for " NAIARA C; COELHO NORONHA "
All listed articles are free for downloading (OA Articles)
Page 1 /224302
Display every page Item
Genetic polymorphism of GSTM1 in women with breast cancer and interact with reproductive history and several clinical pathologies
JOSé JUVENAL LINHARES,ISMAEL DALE COTRIM GUERREIRO DA SILVA,NAIARA C NOGUEIRA DE SOUZA,EMMANUELLE COELHO NORONHA
Biological Research , 2005,
Abstract: Due to the conflicting results regarding the association between breast cancerand the GSTM1 null mutation, our aim was to research this associationin a Brazilian population and correlations withsmoking, reproductive history and several clinical pathologies. A case-control study was performed on 105 women with breast cancer and 278 controls. Extraction of DNA was accomplished according to the protocol of the GFX kit and polymorphism analysis by the PCR technique. The control and experimental groups were compared and statistical analysis assessed by X2 or Fisher's exact test. The deletion in the GSTM1 gene in the breast cancer group had a prevalence of 32 (30.4%) individuals with the presence of null mutation. In the control group, the null mutation was present in 104 (37.4%) women. Upon comparison of the two groups, no statistically significant difference of the GSTM1 gene was observed, with an odds ratio (OR) of 0.74, 95%, confidence interval (CI) 0.45 - 1.20, p = 0.277. The results conclusively show that singlegene GSTM1 polymorphisms do not confer a substantial risk of breastcancer to its carriers. Furthermore, in this study no correlation was found between GSTs andsmoking, reproductive history and several clinical pathologies with respect to cancer risk.
Genetic polymorphism of GSTM1 in women with breast cancer and interact with reproductive history and several clinical pathologies
LINHARES,JOSé JUVENAL; GUERREIRO DA SILVA,ISMAEL DALE COTRIM; NOGUEIRA DE SOUZA,NAIARA C; COELHO NORONHA,EMMANUELLE; FERRARO,ODAIR; DE CARVALHO,CRISTINA VALLETA; CHADA BARACAT,EDMUND; FARAH BARACAT,FAUSTO;
Biological Research , 2005, DOI: 10.4067/S0716-97602005000200017
Abstract: due to the conflicting results regarding the association between breast cancer and the gstm1 null mutation, our aim was to research this association in a brazilian population and correlations with smoking, reproductive history and several clinical pathologies. a case-control study was performed on 105 women with breast cancer and 278 controls. extraction of dna was accomplished according to the protocol of the gfx? kit and polymorphism analysis by the pcr technique. the control and experimental groups were compared and statistical analysis assessed by x2 or fisher's exact test. the deletion in the gstm1 gene in the breast cancer group had a prevalence of 32 (30.4%) individuals with the presence of null mutation. in the control group, the null mutation was present in 104 (37.4%) women. upon comparison of the two groups, no statistically significant difference of the gstm1 gene was observed, with an odds ratio (or) of 0.74, 95%, confidence interval (ci) 0.45 - 1.20, p = 0.277. the results conclusively show that single gene gstm1 polymorphisms do not confer a substantial risk of breast cancer to its carriers. furthermore, in this study no correlation was found between gsts and smoking, reproductive history and several clinical pathologies with respect to cancer risk.
Polimorfismo do gene do receptor de progesterona (PROGINS) em mulheres com cancer de mama: estudo caso-controle
Linhares, José Juvenal;Silva, Ismael Dale Cotrim Guerreiro da;Souza, Naiara Correa Nogueira de;Noronha, Emmanuelle Coelho;Ferraro, Odair;Baracat, Fausto Farah;
Revista Brasileira de Ginecologia e Obstetrícia , 2005, DOI: 10.1590/S0100-72032005000800007
Abstract: purpose: to analyze the correlation between progins polymorphism and breast cancer. methods: a case-control study was carried out from april to october 2004. the genotypes of 50 women with breast cancer and 49 healthy women were analyzed. the 306-base pair alu insertion polymorphism in the g intron of progesterone receptor gene was detected by polymerase chain reaction and analyzed on 2% agarose gel stained with ethidium bromide. the control and experimental groups were compared regarding genotypes using the statistical epi-info 6.0 program and for frequencies the exact fisher test or c2 test were used. p value smaller p than 5% was considered to be significant. results: in relation to progins we found in the studied population a prevalence of 62 (62.6%) wild homozygous, 35 (35.3%) heterozygous individuals and two (2.1%) cases with the presence of the mutation. regarding progins polymorphism, significance was not evidenced when cases and controls were compared, as related to homozygosis (62 vs 65.3%), heterozygosis (36 vs 34,6%) or the mutation (2.0 vs 2.1%), with p=0.920 (or=1.01), 0.891 (or=1.06), and 0.988 (or=1.10), respectively. conclusions: the results show that single-gene progins polymorphism does not confer a substantial risk of breast cancer to its carriers.
?El éxito del viejo o del nuevo hacer?: Las prácticas evaluativas en tres escuelas municipa?es de educación básica de Coyaique, región de Aysén, Chile
SCHUCK,NAIARA C;
Magallania (Punta Arenas) , 2012, DOI: 10.4067/S0718-22442012000200006
Abstract: educational evaluation is subject to discussion in all latin-american countries, and in this consideration we have sought to analyze the characteristics shown by the assessment systems used in three public schools of basic level education (emeb) of the city of coyhaique, aysén region - chile, and especially if they promote what is proposed by the ministry of education in regard to school evaluation.
El éxito del viejo o del nuevo hacer?: Las prácticas evaluativas en tres escuelas municipa es de educación básica de Coyaique, región de Aysén, Chile Success in the old or new way of doing?: Assessment practices in three basic level public education school of Coyhaique, Aisén region, Chile
NAIARA C SCHUCK
Magallania , 2012,
Abstract: Se entiende que la Evaluación Educacional es tema de discusión en todos los países de América Latina, y en este marco se ha buscado analizar las características que presentan las evaluaciones realizadas en tres escuelas municipales de educación básica (EMEB) de la comuna de Coyhaique, Región de Aysén - Chile, y en especial, si las mismas promocionan lo que es planteado por el Ministerio de Educación en lo que se refiere a la evaluación escolar. Educational Evaluation is subject to discussion in all Latin-American countries, and in this consideration we have sought to analyze the characteristics shown by the assessment systems used in three public schools of basic level education (EMEB) of the city of Coyhaique, Aysén Region - Chile, and especially if they promote what is proposed by the Ministry of Education in regard to school evaluation.
Caracteriza??o física e química de acerolas provenientes de diferentes regi?es de cultivo
Brunini, Maria Amalia;Macedo, Naiara Barbosa;Coelho, Cristina Vieira;Siqueira, Gabriela Ferraz de;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000300027
Abstract: the physical and chemical characteristics of west indian cherry from 8 regions of cultivation in s?o paulo state were evaluated by this paper. the fruits were harvested from march to april 2003. the results were evaluated in an experimental delineation totally randomized. the average results of weight varied from 3.56 to 7.29g and it was highest in west indian cherry fruits harvested in orchards from guariba, guará and pioneiros region. the average sharp index and diameter oscillated from 0.86 to 1.24 and 2.02 to 2.37cm, respectively. the west indian cherry fruits from orchards situated in bonfim paulista and aparecida do salto presented the highest red color. the fruit firmness varied from 144.73 to 246.00 n.cm-2, and the fruits harvested in orchards situated in bonfim paulista, aparecida do salto and guará region presented the smallest fruits firmness. the obrix ranged from 5.67 to 8.22, and it was highest in west indian cherry fruits harvested in orchards from porto ferreira and guará region suggesting a small potential for postharvest conservation. the ph varied from 2.39 to 4.00, the titrable acidity, expressed as g of malic acid per 100g, ranged from 0.504 to 1.112 and the soluble sugar content ranged from 3.06 to 8.42g of glicose per 100g. the west indian cherry fruits harvested in orchards situated in bonfim paulista, aparecida do salto and ituverava region showed the highest ascorbic acid value.
Testing quantum duality using cold Rydberg atoms
J. L. Noronha,C. Wotzasek
Physics , 2003, DOI: 10.1016/j.physletb.2004.09.053
Abstract: Classically, the dynamics of the chiral oscillator (CO) may be described by the Landau model (LM) through a well established mathematical procedure known as duality mapping. In this letter we show how this duality is broken in quantum mechanics due to the presence of a $Z_2$-anomaly in the CO. We give the theoretical basis for an experimental setup displaying the possibility to measure this global anomaly using cold Rydberg atoms.
Particle Ratios as a Probe of the QCD Critical Temperature
J. Noronha-Hostler,H. Ahmad,J. Noronha,C. Greiner
Physics , 2009, DOI: 10.1103/PhysRevC.82.024913
Abstract: We show how the measured particle ratios can be used to provide non-trivial information about the critical temperature of the QCD phase transition. This is obtained by including the effects of highly massive Hagedorn resonances on statistical models, which are used to describe hadronic yields. The inclusion of Hagedorn states creates a dependence of the thermal fits on the Hagedorn temperature, $T_H$, which is assumed to be equal to $T_c$, and leads to an overall improvement of thermal fits. We find that for Au+Au collisions at RHIC at $\sqrt{s_{NN}}=200$ GeV the best square fit measure, $\chi^2$, occurs at $T_c \sim 176$ MeV and produces a chemical freeze-out temperature of 172.6 MeV and a baryon chemical potential of 39.7 MeV.
Particle Ratios and the QCD Critical Temperature
J. Noronha-Hostler,J. Noronha,C. Greiner
Physics , 2010, DOI: 10.1088/0954-3899/37/9/094062
Abstract: We show how the measured particle ratios at RHIC can be used to provide non-trivial information about the critical temperature of the QCD phase transition. This is obtained by including the effects of highly massive Hagedorn resonances on statistical models, which are used to describe hadronic yields. Hagedorn states are relevant close to $T_c$ and have been shown to decrease $\eta/s$ to the KSS limit and allow for quick chemical equilibrium times in dynamical calculations of hadrons. The inclusion of Hagedorn states creates a dependence of the thermal fits on the Hagedorn temperature, $T_H$, which is assumed to be equal to $T_c$, and leads to an overall improvement of thermal fits. We find that for Au+Au collisions at RHIC at $\sqrt{s_{NN}}=200$ GeV the best square fit measure, $\chi^2$, occurs at $T_c \sim 176$ MeV and produces a chemical freeze-out temperature of 170.4 MeV and a baryon chemical potential of 27.8 MeV.
Increased Risk of Acute Myeloid Leukemia in Patients with CYP1A1 Polymorphisms  [PDF]
Luís Arthur Flores Pelloso, Ismael Dale Cotrim Guerreiro da Silva, Naiara C?rrea Nogueira de Souza, Mihoko Yamamoto, Maria de Lourdes L. Ferrari Chauffaille
Journal of Cancer Therapy (JCT) , 2013, DOI: 10.4236/jct.2013.45111
Abstract:

Acute Myeloid Leukemia (AML) is a group of genetically diverse hematopoietic malignancies arising from cell progenitors developing in the myeloid pathway or from primitive stem cells. Genetic susceptibility of AML may account for an increased risk of AML due to partial metabolism of or biocativation of carcinogens. Chemical compounds are metabolized by a two-tiered phase detoxifying system. Polymorphisms in these pathways may lead to DNA damage and development of AML. We determined the frequencies of carcinogen metabolism gene polymorphisms (CYP1A1, del{GSTM1} and del{GSTT1}) in a case control-study based on polymorphism analysis. Fifty-eight consecutively AML patients (median age 62 years) and 174 sex and age-matched control group were assessed by a PCR-RFLP assay. There were 51 de novo and 7 secondary AML. CYP1A1*2A and CYP1A1*2C polymorphisms were more frequent in CG than AML p < 0.001 and in contrast, CYP1A1*3 and CYP1A1*4 were more frequent in AML than CG p <

Page 1 /224302
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.