Research Article

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Celiac disease (CD) is a multifactorial, inflammatory small bowel disorder characterized by nutrient malabsorption resulting from mucosal damage, the latter induced by cereal products like barley, oat, and wheat. Oxidative stress has previously been reported to play an important role in the pathogenesis of CD. In the present study, we aimed to evaluate the frequency of polymorphisms that ... more

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Annotation of the transcriptome of the dimorphic fungus Paracoccidioides brasiliensis has set the grounds for a global understanding of its metabolism in both mycelium and yeast forms. This fungus is able to use the main carbohydrate sources, including starch, and it can store reduced carbons in the form of glycogen and trehalose; these provide energy reserves that are ... more

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Automatic annotation; Bioinformatics; Differential transcriptome; Expressed sequence tags; Paracoccidioides brasiliensis

Paracoccidioides brasiliensis is the etiological agent of paracoccidioidomycosis, an endemic mycosis of Latin America. This fungus presents a dimorphic character; it grows as a mycelium at room temperature, but it is isolated as yeast from infected individuals. It is believed that the transition from mycelium to yeast is important for the infective process. The Functional ... more

M.M. Brígido; M.Emilia M.T. Walter; M.Emilia M.T. Walter; A.G. Oliveira; M.K. Inoue; D.S. Anjos; E.F.O. Sandes; J.J. Gondim; M.José de A. Carvalho; N.F. Almeida; M.Sueli Soar Felipe
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Knee replacement surgery is an ischemia/reperfusion model, as it uses tourniquet applied to the knee area to stop the blood flow during the operation. Fifty patients that were undergoing elective arthroscopic knee surgery were included in our study. Human 8-oxoguanine glycosylase 1 (hOGG1) is an enzyme to repair specific DNA lesions and a good marker of hydroxyl radical damage to DNA. XPD ... more

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Oxidative stress; Polymorphism; Sickle cell anemia; Superoxide dismutase

Oxidative stress may be contributory to the pathophy­siology of the abnormalities that underlie the clinical course of sickle cell anemia. We looked for a possible genetic association between the functional polymorphism Ala-9Val in the human Mn-SOD gene and sickle cell anemia. One hundred and twenty-seven patients with sickle cell anemia and 127 healthy controls were recruited into the ... more

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Anthocyanins, which are found in some food, including Thai black sticky rice, are reported to have health-promoting properties. Oxidative stress plays a major role in the pathogenesis of many degenerative diseases induced by free radicals, such as cardiovascular disease, stroke and cancer. We evaluated the anthocyanin-rich extract (ARE) from Thai black sticky rice for antioxidative and ... more

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Glucose metabolism; Glucose transport; hydrogen peroxide; Oxidative stress; Schizosaccharomyces pombe; Thiamine

The relationship between glucose repression and the oxidative stress response was investigated in Schizosaccharomyces pombe wild type cells (972h-) and glucose repression resistant mutant type cells (ird11). We aimed to reveal the mechanism of simultaneous resistance to glucose repression and oxidative stress in ird11 mutants. ... more

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Familial Mediterranean fever; Gene polymorphism; Glutathione peroxidase; Inflammation; Oxidative stress; Paraoxonase

Familial Mediterranean fever (FMF) is an autosomal recessive disorder and is the most frequent of the periodic febrile inflammatory syndromes. The pathogenesis of the disease is not completely understood, even though the FMF gene has been identified. Oxidative stress and inflammation may play a role in the pathogenesis of FMF. We investigated gene polymorphisms of the antioxidative ... more

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Ascorbate peroxidase; H2O2; Jatropha curcas; Oxidative stress; Salt stress

Ascorbate peroxidase (APX) plays a central role in the ascorbate-glutathione cycle and is a key enzyme in cellular H2O2 me­tabolism. It includes a family of isoenzymes with different character­istics, which are identified in many higher plants. In the present study, we isolated the APX gene from Jatropha curcas L, which is similar with other ... more

Y. Chen; J. Cai; F. .X.Yang; B. Zhou; L.R. Zhou
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Bioinformatics; Cancer; Expressed sequence tags; Gene discovery; ORESTES

The Human Cancer Genome Project generated about 1 million expressed sequence tags by the ORESTES method, principally with the aim of obtaining data from cancer. Of this total, 341,680 showed no similarity with sequences in the public transcript databases, referred to as “no-match”. Some of them represent low abundance or difficult to detect human transcripts, but part of these ... more

Rda Silva Fonseca; D.Maria Carraro; H. Brentani

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