6 results on '"MUNIZ, Maria Tereza Cartaxo"'
Search Results
2. Evaluation of IL-6 levels and +3954 polymorphism of IL-1β in burning mouth syndrome: A systematic review and meta-analysis.
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Campello, Camilla Porto, Pellizzer, Eduardo Piza, Vasconcelos, Belmiro Cavalcanti do Egito, Moraes, Sandra Lúcia Dantas, Lemos, Cleidiel Aparecido Araújo, and Muniz, Maria Tereza Cartaxo
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INTERLEUKIN-6 ,GENETIC polymorphisms ,INTERLEUKIN-1 ,BURNING mouth syndrome ,META-analysis ,INTERLEUKINS ,SALIVA - Abstract
This study evaluated IL-6 salivary levels as well as the +3954 polymorphism of IL-1β in patients with burning mouth syndrome and healthy individuals, through case-control studies. This systematic review and meta-analysis followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We conducted this research in PubMed/MEDLINE, Cochrane Library and Web of Science databases. The risk of bias was measured based in the Newcastle-Ottawa Scale. Researches with a group of patients with burning mouth syndrome and a control group in which the presence of the +3954 polymorphism of IL-1β and/ or IL-6 salivary levels through non-stimulated saliva were evaluated to detect if this interleukin concentrations are increased in patients and if the polymorphism is a risk factor for this syndrome. We identified seven studies with total of 440 participants, 229 patients with burning mouth syndrome and 211 healthy controls, ages 24-84 years old. The female gender was predominant. Patients in the majority of studies did not present increased levels of IL-6 and the +3954 polymorphism of IL-1β is not a risk factor for this syndrome. A few studies researched biomarkers in this pathology and more investigations are required not only to identify salivary levels and the polymorphism evaluated, but also other interleukins and polymorphisms in order to clarify the etiopathogenesis of this syndrome as well as for propose new diagnostic methods and treatments. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
3. APOE-ε4 polymorphism and cognitive deficit among the elderly population of Fernando de Noronha
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Garcia, Anália Nusya, Silva, Helker Albuquerque da, Silva, Renan Carlos, Leal, Eliane Maria Medeiros, Rodrigues, Lorena, Silva, Vanessa Cavalcante da, Dellalibera, Edileine, Freitas, Elizabete Malaquias, Ataíde Jr, Luiz, and Muniz, Maria Tereza Cartaxo
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elderly people ,idosos ,polimorfismos ,déficit cognitivo ,APOE ,polymorphism ,cognitive deficit - Abstract
BACKGROUND: Polymorphism of the gene for apolipoprotein E (APOE) is an important risk factor for the development of Alzheimer's disease. The ε4 allele of the APOE gene has been linked with a number of neuropsychiatric illnesses, and also with stress and depression among geriatric populations. OBJECTIVE: To identify APOE-ε4 polymorphism and correlate this with cognitive deficit among the elderly population of the island of Fernando de Noronha. METHOD: Neuropsychiatric tests (mini-mental state examination, verbal fluency test and clock drawing test) were applied to 52 elderly people without Alzheimer's disease. DNA was isolated from peripheral blood and genotyping of APOE was done by the PCR-RFLP method. RESULTS: 87% of the elderly population (mean age 69.6±7.0) had cognitive deficit. CONCLUSION: The observed frequency of the ε4 allele was 10%, but the correlation between the presence of ε4 and cognitive deficit in this population was not statistically significant. INTRODUÇÃO: Polimorfismos no gene da apoliproteína E (APOE) são importantes fatores de risco para o desenvolvimento da doença de Alzheimer (DA). O alelo ε4 do gene APOE tem sido relacionado com declínio cognitivo e algumas doenças neuropsiquiátricas, primariamente a doença de Alzheimer. OBJETIVO: Identificar os polimorfismos de APOE-ε4 e relacionar com deficit cognitivo na população idosa da ilha de Fernando de Noronha. MÉTODO: Foram aplicados testes neuropsiquiátricos (mini exame do estado mental, teste de fluência verbal e teste do relógio) em 52 idosos sem DA. O DNA foi isolado do sangue periférico e a genotipagem de APOE foi realizada por PCR-RFLP. RESULTADOS: 87% da população idosa com idade média de 69.6±7.0 apresentou déficit cognitivo. Foi observada uma freqüência de 10% do alelo ε4. CONCLUSÃO: Não foi encontrada significância estatística quando relacionada a presença deste alelo e déficit cognitivo nos idosos avaliados.
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- 2008
4. The role of methylenetetrahydrofolate reductase in acute lymphoblastic leukemia in a Brazilian mixed population
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Zanrosso, Crisiane Wais, Hatagima, Ana, Emerenciano, Mariana, Ramos, Flávio, Figueiredo, Alexandre, Félix, Têmis Maria, Segal, Sandra L., Guigliani, Roberto, Muniz, Maria Tereza Cartaxo, and Pombo-de-Oliveira, Maria S.
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GENETIC polymorphisms , *LYMPHOBLASTIC leukemia , *LEUKEMIA - Abstract
Abstract: The polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene are associated with leukemogenesis. In order to investigate the influence of two polymorphisms in the MTHFR gene, 677C>T and 1298A>C, on the risk of acute lymphoblastic leukemia (ALL) we performed a case–control study in children from different Brazilians’ regions. Genotyping of 176 ALL and 199 unselected healthy subjects was performed using PCR-RFLP assay. There was no association between the 677C>T or 1298A>C and risk of ALL in total case–control sample. However, 677T allele was linked to a decrease risk of ALL [odds ratio (OR), 0.43; 95% confidence interval (CI), 0.22–0.86], whereas the 1298A>C polymorphism presents an elevated risk factor [OR, 2.01; 95% CI, 1.01–3.99] in non-White children. Our investigation provides interesting data concerning the opposite effect of A1298C polymorphisms, particularly in the light of relatively scarce data regarding the MTHFR role in leukemia susceptibility in different populations. [Copyright &y& Elsevier]
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- 2006
- Full Text
- View/download PDF
5. Avaliação de polimorfismos de único nucleotídeo (SNPs) envolvidos com a gravidade da doença hepática crônica causada pelo vírus da hepatite C (HCV)
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CARMO, Rodrigo Feliciano do, CAVALCANTI, Maria do Socorro de Mendonça, MOURA, Patrícia Muniz Mendes Freire de, MUNIZ, Maria Tereza Cartaxo, AROUCHA, Dayse Célia Barbosa Lins, BEZERRA, Marcos André Cavalcanti, and SOUZA, Valdênia Maria Oliveira de
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Hepatite C ,Fibrose hepática ,CIENCIAS [OUTROS] ,Polymorphism ,Hepatic fibrosis ,Hepatitis C ,Polimorfismo - Abstract
Submitted by Mario BC (mario@bc.ufrpe.br) on 2016-06-28T12:52:01Z No. of bitstreams: 1 Rodrigo Feliciano do Carmo.pdf: 3731491 bytes, checksum: 86d8eb6b218e10bf0ba32ef83c2d9050 (MD5) Made available in DSpace on 2016-06-28T12:52:01Z (GMT). No. of bitstreams: 1 Rodrigo Feliciano do Carmo.pdf: 3731491 bytes, checksum: 86d8eb6b218e10bf0ba32ef83c2d9050 (MD5) Previous issue date: 2016-05-23 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The hepatitis C virus (HCV) represents a worldwide health problem, with over 170 million people infected all over the world, corresponding to almost 3% of the world’s population. Approximately 70% of the individuals will develop the chronic form of the disease; 25% will develop cirrhosis and about 5% among the cirrhotic will develop hepatocellular carcinoma (HCC). The reason why some individuals evolve more rapidly to the severe forms is still unknown, however, several studies have pointed the influence of genetic factors of the host which are involved with the disease progression in the liver. Single nucleotide polymorphisms (SNPs) are the most common type of genetic variation in humans, and they might alter serum levels or even the function of important proteins. Pentraxin 3 (PTX3) is an acute phase protein that is able to bind the surface of microorganisms and to regulate the complement system. Studies have demonstrated that PTX3 may influence positively the progression of various types of cancer. Additionally, some studies have demonstrated an important influence of a chromosomic region (6q23), associated with the progression of liver fibrosis in schistosomiasis. The IL22RA2 gene is located in this region e may be associated with the severity of fibrosis in HCV, once this gene codifies an inhibitor of an important cytokine correlated with the repair of liver damage, the interleukin-22 (IL-22). Thus, the aim of the present study was to associate the severity of the liver disease caused by HCV with SNPs in the PTX3 and IL22RA2 genes, as well as to identify new SNPs through exome sequencing approach. Patients with chronic hepatitis C were recruited and attended at the service of Gastrohepatology of the Oswaldo Cruz University Hospital/Liver Institute of Pernambuco (Recife, Pernambuco, Brazil) between August 2010 and December 2014. The detection of SNPs was performed by real time PCR using TaqMan probes (Thermo Fisher Scientific). Regarding the exome sequencing, it was used the IonTorrent platform (Thermo Fisher Scientific). A total of three studies were performed, the first study identified two polymorphisms (rs6570136 and rs2064501) on the IL22RA2 gene, associated with the severity of hepatic fibrosis, in a total of 532 patients. It was observed a higher frequency of genotypes GG/GA of rs6570136 and TT/TC of rs2064501 in the group of individuals with severe fibrosis (p=0,007 OR 1,7 and p=0,004 OR 2,4). On the second study, with a total of 524 patients, it was possible to notice a significant association of the genotype AA in the PTX3 gene (rs2305619) with risk of HCC (p=0.024 OR 1,94). Finally, the exome sequencing was carried in 9 HCC cases and 10 cirrhotic controls, where it was possible to identify two genes (PRSS58 and SOCS5), which are possibly associated with the development of HCC. Therefore, through this study we have demonstrated, for the first time, the association of SNPs in IL22RA2, PTX3, PRSS58 and SOCS5 with the progression of the hepatic disease caused by HCV. Other studies are needed in order to evaluate the use of these SNPs as progression markers of hepatitis C; as well as to evaluate the possible use of these molecules as therapeutic targets. O vírus da hepatite C (HCV) representa um problema de saúde mundial, acometendo mais de 170 milhões de pessoas em todo o mundo, o que corresponde a cerca de 3% da população mundial. Aproximadamente 70% dos indivíduos irão desenvolver a forma crônica da doença, 25% desenvolverão cirrose e cerca de 5% dos cirróticos desenvolverão carcinoma hepatocelular (HCC). O motivo pelo qual alguns indivíduos evoluem mais rapidamente para formas mais graves ainda é desconhecido, entretanto diversos estudos têm apontado a influência de fatores genéticos do hospedeiro envolvidos com a progressão da doença no fígado. Polimorfismos de único nucleotídeo (SNPs) são o tipo de variação genética mais comum em humanos, e podem influenciar os níveis séricos ou até mesmo a função de proteínas importantes. A pentraxina 3 (PTX3) é uma proteína de fase aguda capaz de se ligar a microrganismos e de regular o sistema complemento. Estudos têm demonstrado que a PTX3 pode influenciar positivamente a progressão de vários tipos de câncer. Além disso, alguns estudos têm demonstrado uma grande influência de uma região cromossômica (6q23) associada com a progressão da fibrose hepática na esquistossomose. O gene IL22RA2 está localizado nesta região e poderia estar associado com a gravidade da fibrose no HCV, uma vez que este gene codifica um inibidor de uma importante citocina envolvida com a reparação de danos hepáticos, a interleucina-22 (IL-22). Portanto, o objetivo do presente trabalho foi associar a gravidade da doença hepática causada pelo HCV, com SNPs nos genes PTX3 e IL22RA2, assim como identificar novos SNPs através da técnica de sequenciamento de exoma. Foram recrutados pacientes com hepatite C crônica, atendidos no serviço de Gastrohepatologia do Hospital Universitário Oswaldo Cruz/Instituto do Fígado de Pernambuco (Recife-PE, Brasil) entre agosto de 2010 e dezembro de 2014. A detecção dos SNPs foi realizada por PCR em tempo real através de sondas TaqMan®. Para o sequenciamento do exoma, foi utilizada a plataforma IonTorrent®. Um total de três estudos foram realizados, o primeiro estudo identificou dois polimorfismos (rs6570136 e rs2064501) no gene IL22RA2, associados com a gravidade da fibrose hepática, em um total de 532 pacientes. Foi observada uma maior frequência dos genótipos GG/GA do rs6570136 e TT/TC do rs2064501 no grupo de indivíduos com fibrose grave (p=0,007 OR 1,7 e p=0,004 OR 2,4). No segundo estudo, com um total de 524 pacientes, foi possível observar uma associação significativa do genótipo AA no gene PTX3 (rs2305619) com o risco de HCC (p=0.024 OR 1,94). Por fim, foi realizado o sequenciamento do exoma de 9 casos com HCC e 10 controles cirróticos, onde foi possível identificar dois genes (PRSS58 e SOCS5) possivelmente associados com o desenvolvimento de HCC. Portanto, através do presente estudo, foi demonstrado pela primeira vez a associação de SNPs no IL22RA2, PTX3, PRSS58 e SOCS5 com a progressão da doença hepática causada pelo HCV. Outros estudos são necessários para avaliar o uso desses SNPs como marcadores de progressão da hepatite C, bem como avaliar o possível uso dessas moléculas como alvos terapêuticos.
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- 2016
6. Estudo do polimorfismo da kappa- caseína e alfa-lactoalbumina em bovinos Girolando, do Brasil e Siboney, de Cuba
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FREITAS, Soraya Farias de Andrade, BARBOSA, Severino Benone Paes, GOMES FILHO, Manoel Adrião, SANTORO, Kleber Régis, MAIA, Maria de Mascena Diniz, MUNIZ, Maria Tereza Cartaxo, SOUZA, Paulo Eleutério de, and RIBEIRO, Maria Norma
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Bovino ,ZOOTECNIA [CIENCIAS AGRARIAS] ,Leite ,Milk protein ,Polymorphism ,Bos taurus indicus ,Bos taurus taurus ,Proteína lactéa ,Polimorfismo - Abstract
Submitted by (edna.saturno@ufrpe.br) on 2017-05-18T12:44:39Z No. of bitstreams: 1 Soraya Farias de Andrade Freitas.pdf: 720574 bytes, checksum: 5bdec2199a6c7a1051ac90567718753f (MD5) Made available in DSpace on 2017-05-18T12:44:39Z (GMT). No. of bitstreams: 1 Soraya Farias de Andrade Freitas.pdf: 720574 bytes, checksum: 5bdec2199a6c7a1051ac90567718753f (MD5) Previous issue date: 2013-07-17 Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Milk is a food of nutritional and functional importance for all phases of life; however, of all constituents, the fat and protein components are considered to be the most economical value within milk quality payment programs. This fact suggests a greater importance given to these constituents by the main actors of the milk production chain within the economic scenario (MADALENA, 2000). Dürr (2004) reports that milk fat and protein concentrations vary mainly depending on the nutritional management and genetic potential of the animals. As a consequence of the genetic differences responsible for the variation of 25% of the total milk production and 50% in the variations of fat, protein and non-greasy solids (GONYON et al., 1987) ). According to Bonfatti et al. (2010), it is estimated that the additive genetic variance for milk composition characteristics is between 14 and 39% of the total variance. In relation to the polymorphisms of the genes coding for the main milk proteins, such as caseins, β-Lg and α-La, these became markers of interest in milk production, composition and processing. They are excellent models for understanding the behavior of the dairy raw material during the industrial process, since they are closely related to the milk casein fraction, the main protein portion involved with the high yield in the production of cheeses and other derivatives. In addition, genetic polymorphisms of milk proteins are frequently used for the characterization of several breeds of animal production (CAROLI et al., 2010). In order to promote improvements in the genetics of milk production, composition and processing characteristics, research in the field of molecular biology has made it possible to map and identify genomic, transcriptomic and proteomic levels of polymorphisms that contribute to variations in milk composition , In this way, the process of selection of animals in breeding programs. In view of the above, the objective of this research was to study the genetic polymorphisms of kappa-casein and alpha-lactalbumin in cattle of the Girolando and Siboney races O leite é um alimento de importância nutricional e funcional para todas as fases da vida, entretanto, de todos os constituintes, os componentes gordura e proteína são considerados os de maior valor econômico dentro dos programas de pagamento de leite por qualidade. Esse fato sugere uma maior importância dada a esses constituintes pelos principais atores da cadeia produtiva leiteira dentro do cenário econômico (MADALENA, 2000). Dürr (2004) relata que as concentrações de gordura e proteína do leite variam principalmente em função do manejo nutricional e potencial genético dos animais. Desta forma, como principal fator de variação têm-se os efeitos das diferenças genéticas responsáveis pela variação de 25% do total da produção de leite e 50% nas variações dos teores de gordura, proteína e sólidos não gordurosos (GONYON et al., 1987). Segundo Bonfatti et al. (2010), estima-se que a variância genética aditiva para as características de composição do leite encontra-se entre 14 e 39% da variância total. Com relação aos polimorfismos dos genes que codificam as principais proteínas do leite, como as caseínas, β-Lg e α-La, estes se tornaram marcadores de interesse na produção, composição e beneficiamento do leite. São excelentes modelos de compreensão do comportamento da matéria prima láctea durante o processo industrial, já que estão intimamente relacionados à fração caseínica do leite, principal porção proteica envolvida com o alto rendimento na produção de queijos e demais derivados. Além disso, os polimorfismos genéticos das proteínas lácteas são frequentemente utilizados para a caracterização de diversas raças de produção animal (CAROLI et al., 2010). Deste modo, para promover melhorias na genética das características de produção, composição e beneficiamento do leite, pesquisas no ramo da biologia molecular têm possibilitado realizar o mapeamento e identificação em nível genômico, transcriptômico e proteômico dos polimorfismos que contribuem para variações na composição do leite facilitando, desta forma, o processo de seleção dos animais em programas de melhoramento genético. Diante do exposto, o objetivo desta pesquisa foi estudar os polimorfismos genéticos da kappa-caseína e alfa-lactoalbumina em bovinos das racas Girolando e Siboney.
- Published
- 2013
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