Centro Universitario Do Planalto Of Araxa

Araxá, Brazil

Centro Universitario Do Planalto Of Araxa

Araxá, Brazil
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Pimentel A.J.B.,Federal University of Viçosa | Ribeiro G.,Federal University of Pampa | de Souza M.A.,Federal University of Viçosa | Moura L.M.,Federal University of Viçosa | And 2 more authors.
Bragantia | Year: 2013

The methods used for selecting crosses in one crop species are not necessarily appropriate for others. The present study aimed to evaluate the application of diallel analysis, genetic diversity, parental average, and the Jinks and Pooni method for the selection of parents and superior segregating populations for the grain yield character in wheat. Thus, two experiments were conducted and the treatments were arranged in lattice (experiment I) and randomized blocks with individual information within the plot (experiment II). Twelve parental individuals and 36 segregating populations in the F3 generation resulting from the crossing of these parents in a partial diallel arrangement were evaluated. The application of the evaluated methodologies led to distinct results. The parental average and genetic diversity alone are not efficient prediction methods. The methodology of Jinks and Pooni presents practical limitation because it is not adequate for wheat crop system. Among the evaluated methodologies, diallel analysis is the most promising method for the identification of parents and superior segregating populations.

Coelho J.M.O.,Catholic University of Brasília | Sales M.M.,Catholic University of Brasília | Moraes J.F.V.N.,Catholic University of Brasília | Moraes J.F.V.N.,Federal University of Vale do São Francisco | And 13 more authors.
Journal of Exercise Physiology Online | Year: 2011

Acute bouts of exercise can reduce arterial stiffness in elderly, but the effect of exercise seems to be influenced by genetic factors. The aim of this study was to verify the influence of the angiotensin converting enzyme (ACE) gene's insertion/deletion polymorphism and acute aerobic exercise in the ambulatory arterial stiffness index (AASI) of elderly women. Twenty-five elderly women (70.9 ± 6.1 yrs; 25.2 ± 2.7 kg/m2), previously genotyped for the ACE gene's I/D polymorphism, participated in this study. The volunteers were submitted to an incremental test to identify anaerobic threshold (AT). Afterwards, they underwent two sessions: a 90% AT Session and a Control Session. The AASI was measured during the 24 hrs after the sessions. In conclusion, exercise performed at 90% AT reduced arterial stiffness of the elderly subjects', especially carriers of the D/D ACE gene genotype.

Santana H.A.P.,Catholic University of Brasília | Santana H.A.P.,Centro Universitario Do Planalto Of Araxa | Moreira S.R.,Federal University of Vale do São Francisco | Neto W.B.,Catholic University of Brasília | And 10 more authors.
BMC Cardiovascular Disorders | Year: 2011

Background: The absence of the I allele of the angiotensin converting enzyme (ACE) gene has been associated with higher levels of circulating ACE, lower nitric oxide (NO) release and hypertension. The purposes of this study were to analyze the post-exercise salivary nitrite (NO 2 -) and blood pressure (BP) responses to different exercise intensities in elderly women divided according to their ACE genotype.Methods: Participants (n = 30; II/ID = 20 and DD = 10) underwent three experimental sessions: incremental test - IT (15 watts workload increase/3 min) until exhaustion; 20 min exercise 90% anaerobic threshold (90% AT); and 20 min control session without exercise. Volunteers had their BP and NO 2 -measured before and after experimental sessions.Results: Despite both intensities showed protective effect on preventing the increase of BP during post-exercise recovery compared to control, post-exercise hypotension and increased NO 2 -release was observed only for carriers of the I allele (p < 0.05).Conclusion: Genotypes of the ACE gene may exert a role in post-exercise NO release and BP response. © 2011 Santana et al; licensee BioMed Central Ltd.

Franca-Botelho A.C.,Federal University of Minas Gerais | Franca-Botelho A.C.,Centro Universitario Do Planalto Of Araxa | Franca J.L.,Centro Universitario Do Planalto Of Araxa | Franca J.L.,University of Sao Paulo | And 4 more authors.
Research Journal of Parasitology | Year: 2010

This study aimed to evaluate the phagocytic ability of Entamoeba histolytica and Entamoeba dispar strains and the oxidative stress response. Erythrocytes and mononuclear (MN) and polymorphonuclear (PMN) leukocytes, were separated from peripheral blood. The samples were fractionated over a Ficoll-Paque density gradient. Then they were incubated with trophozoites of the virulent E. histolytica (HM1-IMSS) and avirulent (ICB-32) strain and E. dispar (ICB-ADO) nonpathogenic. Superoxide anion was determined by its reaction with cytochrome chromogen and SOD release by the nitroblue tétrazolium reduction test. The results show that the virulence of E. histolytica was correlated to their phagocytic activity. The virulent strain indeed presented greater eiythrophagocytic and leuchophagocytic activity. The interaction between MN and E. histolytica provoked larger SOD release and smaller superoxide concentration compared to the values obtained in the PMN and E. histolytica interaction, where the largest concentration of superoxide was observed in the PMN and ICB-32 interaction, which caused significant amoeba death. The results indicate that these E. histolytica virulent strains are more efficient in inhibiting the oxidative burst of MN and that avirulent strains stimulate the production of superoxide for PMN, making the latter more susceptible to death. © 2010 Academic Journals Inc.

Franca-Botelho A.C.,Centro Universitario Do Planalto Of Araxa | Lopes R.P.,Centro Universitario Do Planalto Of Araxa | Franca J.L.,University of Sao Paulo | Gomes M.A.,Federal University of Minas Gerais
Research Journal of Parasitology | Year: 2011

The purpose of this review is to report the scientific advances of amoebiasis, especially focusing the innate immune response and the oxidative stress related to the infection. Amoebiasis is a significant cause of morbidity and mortality, affects about 50 million persons and leads to approximately 100.000 deaths worldwide each year. As to the virulence, the different strains of Entamoeba histolytica and Entamoeba dispar can be characterized in several forms. The main ones are: the capacity of inducing liver abscess in hamsters, the erythrophagocytosis and the cytopathic effect on VERO cells. The tissue invasion by E. histolytica trophozoites induces a humoral immune response, which may persist for several years, being verified by the levels of antibodies. However, it is the cellular immune response that has been described as the most effective one. It still remains unclear whether, the oxidative stress generated at the inflammatory sites of amoebiasis gives rise to benefits or injuries to the host, or if both possibilities may coexist, depending on other factors such as, for instance, the type of strain and the profile of the host immune response. A better understanding on the relationship between parasite and the host immune response is crucial for the development of vaccines and for the improvement of therapeutic alternatives to amoebiasis. © 2011 Academic Journals Inc.

Franca-Botelho A.C.,Centro Universitario Do Planalto Of Araxa | Ferreira M.C.,Centro Universitario Do Planalto Of Araxa | Franca J.L.,Centro Universitario Do Planalto Of Araxa | Franca J.L.,University of Sao Paulo | And 2 more authors.
Asian Pacific Journal of Cancer Prevention | Year: 2012

In this review, we describe the patterns of known immunological components in breastmilk and examine the relationship between breastfeeding and reduced risk of breast cancer. The top risk factors for breast cancer are a woman's age and family history, specifically having a first-degree relative with breast cancer. Women that have a history of breastfeeding have been shown to have reduced rates of breast cancer. Although the specific cause has not been elucidated, previous studies have suggested that breastfeeding reduces the risk of breast cancer primarily through two mechanisms: the differentiation of breast tissue and reduction in the lifetime number of ovulatory cycles. In this context, one of the primary components of human milk that is postulated to affect cancer risk is alpha-lactalbumin. Tumour cell death can be induced by HAMLET (a human milk complex of alpha-lactalbumin and oleic acid). HAMLET induces apoptosis only in tumour cells, while normal differentiated cells are resistant to its effects. Therefore, HAMLET may provide safe and effective protection against the development of breast cancer. Mothers should be encouraged to breastfeed their babies because the complex components of human milk secretion make it an ideal food source for babies and clinical evidence has shown that there is a lower risk of breast cancer in women who breastfed their babies.

Juliano R.C.,Federal University of Uberlandia | Juliano R.C.,Centro Universitario Do Planalto Of Araxa | Travencolo B.A.N.,Federal University of Uberlandia | Soares M.S.,Federal University of Uberlandia | Maia M.D.A.,Federal University of Uberlandia
Proceedings of the International Conference on Software Engineering and Knowledge Engineering, SEKE | Year: 2013

Use cases are widely used in early software development phases such as requirements analysis. In this paper, we investigate how use case similarity can impact the classes that implement them. We studied whether the similarity of use cases can have impact on the lines of code shared between them and on metrics of classes that implement them, such as coupling, cohesion and method complexity. We have also successfully applied an automated approach to assess the similarity of use case names.We found that there is a statistically significant correlation, although not strong, between use case similarity and sharing of lines of code. Interestingly, we have also found that classes that are shared between different use cases tend to have lower cohesion. Moreover, classes that are shared between similar use cases tend to have higher method complexity in classes. We found no relation between use case similarity and coupling. Copyright © 2013 by Knowledge Systems Institute Graduate School.

Londe V.,Federal University of Ouro Preto | da Silva J.C.,Centro Universitario Do Planalto Of Araxa
Acta Botanica Brasilica | Year: 2014

Despite their extreme importance for environmental balance, riparian forests have been severely disturbed over time. This study aimed to identify grass species and determine their distribution in a disturbed stretch of riparian forest along Pimentas creek, in the municipality of Matutina, which is in the state of Minas Gerais, Brazil. Among four plots established within the study area, we recorded Pennisetum purpureum Schumach., Urochloa mutica (Forssk.) T.Q. Nguyen, Urochloa decumbens (Stapf) R.D. Webster, Paspalum notatum Flüggé and Andropogon bicornis L. The most common species was Pennisetum purpureum, which occurred in all of the plots, more frequently in those that had been disturbed. The proportions of exotic and native grasses, as well as their distribution, differed significantly among the plots. The distribution of the grass species varied according to the level of degradation of the creek bank, occurring more frequently where the bank had been disturbed. Therefore, we assume that grasses can be used as indicators of degradation in riparian zones. We also found that grasses are less efficient in preventing erosion than is the typical riparian vegetation.

Fransozo A.,São Paulo State University | Teixeira G.M.,Federal University of Mato Grosso do Sul | Gomes R.R.,São Paulo State University | Silva J.C.,Centro Universitario Do Planalto Of Araxa | Bolla Jr. E.A.,São Paulo State University
Acta Scientiarum - Biological Sciences | Year: 2012

Deformities and abnormalities in crustaceans have been associated to genetic problem, which occurred during molt process, damage caused by ectobionts, predators or environmental stress caused by chemical wastes. Some crab specimens collected in the São Paulo littoral were found having body abnormalities. They belong to the following crab species: Callinectes ornatus (Ordway, 1863), Arenaeus cribrarius (Lamarck, 1818) and Leurocyclus tuberculosus (H. Milne Edwards; Lucas, 1843). Samplings were performed by trawling during July 2008, August and October 2009 at the Ubatuba region, São Paulo State, Brazil. Body abnormalities were verified in the cheliped dactyl (C. ornatus an adult male), carapace deformities (A. cribrarius an adult male) and abdominal alterations (C. ornatus an adult female; L. tuberculosus an adult male and an ovigerous female). The record and analysis of such occurrences can help in the distinction of natural or human impact caused alterations. In this way, the occurrence study of this kind of body alterations could provide tools in order to control unprotected environmental areas, as well as bring subsides to understand the unusual variations during the ontogeny of important species in the benthic community.

De Freitas C.H.,Centro Universitario Do Planalto Of Araxa | De Freitas C.H.,São Paulo State University | De Araujo A.,Centro Universitario Do Planalto Of Araxa
Herpetological Bulletin | Year: 2011

Vehicles running over vertebrates has been an increasing challenge to the local conservation of some herpetofauna. The Amphisbaenidae are fossorial reptiles which are poorly known ecologically. Biological and natural history data were obtained from three specimens of Amphisbaenia alba that were found dead along 8320 km survey of highways. The rarity of road kill and the importance of the species conservation are discussed.

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