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| Registros recuperados: 189 | |
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| Brito, Orlando Gonçalves; Andrade Júnior, Valter Carvalho de; Azevedo, Alcinei Mistico de; Donato, Luan Mateus Silva; Silva, Lidiane Rodrigues; Ferreira, Marcos Aurélio Miranda. |
| The aim of this study was to obtain information for the genetic improvement of kale through repeatability and phenotypic stabilization studies and to compare methodologies that represent the reliability of the estimated parameters. Thirty-three half-sib progenies were evaluated in a randomized block design with three replicates and six plants per plot. Eight harvests were evaluated in terms of the yield of fresh leaves, number of shoots, number of leaves and average mass of leaves. Then, a phenotypic repeatability and stabilization study was performed, estimating the genetic parameters σ2a, σ²g, σ²e, and the coefficient of environmental variation and repeatability using the frequentist and Bayesian methodologies. To evaluate the reliability of these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Improvement; Genetics; Brassica oleracea var. Acephala; Crops.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42606 |
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| Brito, Orlando Gonçalves; Andrade Júnior, Valter Carvalho de; Azevedo, Alcinei Mistico de; Donato, Luan Mateus Silva; Silva, Lidiane Rodrigues; Ferreira, Marcos Aurélio Miranda. |
| The aim of this study was to obtain information for the genetic improvement of kale through repeatability and phenotypic stabilization studies and to compare methodologies that represent the reliability of the estimated parameters. Thirty-three half-sib progenies were evaluated in a randomized block design with three replicates and six plants per plot. Eight harvests were evaluated in terms of the yield of fresh leaves, number of shoots, number of leaves and average mass of leaves. Then, a phenotypic repeatability and stabilization study was performed, estimating the genetic parameters σ2a, σ²g, σ²e, and the coefficient of environmental variation and repeatability using the frequentist and Bayesian methodologies. To evaluate the reliability of these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Improvement; Genetics; Brassica oleracea var. Acephala; Crops.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42606 |
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| SOUZA,ELISA S.T. DE; ARAÚJO,LUIZA F. DE; ALENCAR,DAYSE O. DE; SANTOS,SIDNEY E.B. DOS; SILVA Jr,WILSON A.; FERREIRA,CRISTIANE A.; BADDINI-MARTINEZ,JOSÉ. |
| The higher proportion of smokers among Black people in Brazil has been attributed to socioeconomic disparities, but genetic factors could also contribute for this finding. This study aimed at investigating associations between smoking status with genetically defined ethnic ancestry and socioeconomic features in Brazilians. Blood samples were collected from 448 volunteers (66.7% male; age: 37.1±11.4 years) classified as current smokers (CS: 60.9%), former smokers (FS: 8.9%) and never smokers (NS: 30.1%). Individual interethnic admixtures were determined using a 48 insertion-deletion polymorphisms ancestry-informative-marker panel. CS showed a lower amount of European ancestry than NS (0.837±0.243 X 0.883±0.194, p≤0.05) and FS (0.837±0.243 X 0.864±0.230,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Smoking; Ethnicity and health; Genetics; CYP2A6. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100447 |
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| Tonet,A.C; Karnikowski,M; Moraes,C.F; Gomes,L; Karnikowski,M.G.O; Córdova,C; Nóbrega,O.T. |
| In worldwide studies, interleukin-6 (IL-6) is implicated in age-related disturbances. The aim of the present report was to determine the possible association of IL-6 -174 C/G promoter polymorphism with the cytokine profile as well as with the presence of selected cardiovascular risk features. This was a cross-sectional study on Brazilian women aged 60 years or older. A sample of 193 subjects was investigated for impaired glucose regulation, diabetes, hypertension, and dyslipidemia. Genotyping was done by direct sequencing of PCR products. IL-6 and C-reactive protein were quantified by high-sensitivity assays. General linear regression models or the Student t-test were used to compare continuous variables among genotypes, followed by adjustments for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytokine; Interleukin-6; Genetics; Elderly; Cardiovascular disease; Brazil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000100008 |
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| Salazar,L.A.; Cavalli,S.A.; Hirata,M.H.; Diament,J.; Forti,N.; Giannini,S.D.; Nakandakare,E.R.; Bertolami,M.C.; Hirata,R.D.C.. |
| Familial hypercholesterolemia (FH) is a metabolic disorder inherited as an autosomal dominant trait characterized by an increased plasma low-density lipoprotein (LDL) level. The disease is caused by several different mutations in the LDL receptor gene. Although early identification of individuals carrying the defective gene could be useful in reducing the risk of atherosclerosis and myocardial infarction, the techniques available for determining the number of the functional LDL receptor molecules are difficult to carry out and expensive. Polymorphisms associated with this gene may be used for unequivocal diagnosis of FH in several populations. The aim of our study was to evaluate the genotype distribution and relative allele frequencies of three... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Familial hypercholesterolemia; DNA polymorphism; Atherosclerosis; Genetics; LDL receptor. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001100006 |
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| Freitas,S.R.S.; Cabello,P.H.; Moura-Neto,R.S.; Dolinsky,L.C.; Lima,A.B.; Barros,M.; Bittencourt,I.; Cordovil,I.L.. |
| Essential hypertension is a disease multifactorially triggered by genetic and environmental factors. The contribution of genetic polymorphisms of the renin-angiotensin-aldosterone system and clinical risk factors to the development of resistant hypertension was evaluated in 90 hypertensive patients and in 115 normotensive controls living in Southwestern Brazil. Genotyping for insertion/deletion of angiotensin-converting enzyme, angiotensinogen M235T, angiotensin II type 1 receptor A1166C, aldosterone synthase C344T, and mineralocorticoid receptor A4582C polymorphisms was performed by PCR, with further restriction analysis when required. The influence of genetic polymorphisms on blood pressure variation was assessed by analysis of the odds ratio, while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential hypertension; Renin-angiotensin- aldosterone system; Polymorphisms; Genetics. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000300005 |
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| Gerbase-DeLima,M.; Pereira-Santos,A.; Sesso,R.; Temin,J.; Aragão,E.S.; Ajzen,H.. |
| The objective of the present study was to investigate a possible association between HLA class II antigens and idiopathic focal segmental glomerulosclerosis (FSGS). HLA-A, -B, -DR and -DQ antigens were determined in 19 Brazilian patients (16 white subjects and three subjects of Japanese origin) with biopsy-proven FSGS. Comparison of the HLA antigen frequencies between white patients and white local controls showed a significant increase in HLA-DR4 frequency among FSGS patients (37.7 vs 17.2%, P<0.05). In addition, the three patients of Japanese extraction, not included in the statistical analysis, also presented HLA-DR4. In conclusion, our data confirm the association of FSGS with HLA-DR4 previously reported by others, thus providing further... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Focal segmental glomerulosclerosis; Genetics; HLA antigens; MHC. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000300010 |
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| Massoni Neto,L.M.; Bianchi,C.P.; Ab'Saber,A.M.; Parra,E.R.; Takagaki,T.; Pereira,J.C.; Soares,F.A.; Leite,K.; Capelozzi,V.L.. |
| Malignancy of pulmonary large cell carcinomas (LCC) increases from classic LCC through LCC with neuroendocrine morphology (LCCNM) to large cell neuroendocrine carcinomas (LCNEC). However, the histological classification has sometimes proved to be difficult. Because the malignancy of LCC is highly dependent on proteins with functions in the cell cycle, DNA repair, and apoptosis, p53 has been targeted as a potentially useful biological marker. p53 mutations in lung cancers have been shown to result in expression and protein expression also occurs in the absence of mutations. To validate the importance of both p53 protein expression (by immunostaining) and p53 gene mutations in lung LCC (by PCR-single strand conformational polymorphism analysis of exons 5, 6,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Large cell carcinoma; P53; Genetics; Molecular biology; Lung cancer; Mutation analysis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800004 |
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| Zhang,Zhenguo; Zhou,Jun. |
| ABSTRACT: Biodiversity plays a key role in human welfare by providing agricultural, economic, and health benefits. However, following the industrial revolution, the rapid expansion of the human population and subsequent economic activities have caused a dramatic loss in global biodiversity, resulting in significant disturbances to ecosystems and our own living conditions. Accordingly, the conservation of biodiversity has become one of the most important challenges for humanity. The vast numbers of plants, animals, and microorganisms, the enormous genetic diversity of these species and the different ecosystems to which these organisms belong are all part of a biologically diverse planet. A substantial proportion of the world’s biodiversity has been... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Ecosystem; Agriculture; Conservation; Genetics; Human welfare. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000500400 |
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| Clevenger, Anthony P; Western Transportation Institute, Montana State University; apclevenger@gmail.com; Sawaya, Michael A; Department of Ecology, Montana State University; mikesawaya@hotmail.com. |
| Intuitively, wildlife crossing structures should enhance the viability of wildlife populations. Previous research has demonstrated that a broad range of species will use crossing structures, however, questions remain as to whether these measures actually provide benefits to populations. To assess this, studies will need to determine the number of individuals using crossings, their sex, and their genetic relationships. Obtaining empirical data demonstrating population-level benefits for some species can be problematic and challenging at best. Molecular techniques now make it possible to identify species, individuals, their sex, and their genetic relatedness from hair samples collected through non-invasive genetic sampling (NGS). We describe efforts to pilot... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Banff National Park; DNA; Genetics; Non-invasive; Road ecology; Ursus americanus; Ursus arctos; Wildlife crossing structure. |
| Ano: 2010 |
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| Tonini,Gustavo; Siqueira,Frank. |
| Background: Discovering biomarkers is a fundamental step to understand and deal with genetic diseases. Methods using classic Computer Science algorithms have been adapted in order to support processing large biological data sets, aiming to find useful information to understand causing conditions of diseases such as cancer. Results: This paper describes some promising biomarker discovery methods based on several grid architectures. Each technique has some features that make it more suitable for a particular grid architecture. This matching depends on the parallelizing capabilities of the method and the resource availability in each processing/storage node. Conclusion: The study described in this paper analyzed the performance of biomarker discovery methods... |
| Tipo: Journal article |
Palavras-chave: Feature selection; Genetics; Parallel computing; Pattern detection; Performance. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000500013 |
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| Villela,Thais R.; Freire,Bruna L.; Braga,Nathalia T. P.; Arantes,Rodrigo R.; Funari,Mariana F. A.; Alexander,Jorge A L; Silva,Ivani N.. |
| Abstract Laron’s syndrome (LS) is a rare genetic disorder characterized by insensitivity to growth hormone (GH). Up to the present time, over 70 mutations of GH receptor (GHR) gene have been identified leading to GH/insulin-like growth factor type 1 (IGF1) signaling pathway defect. The number of LS patients worldwide is unknown, as many are probably undiagnosed. We report two sibs from a consanguineous family from Minas Gerais, southeastern Brazil. The parents have three children. The older, a 4-years-old girl was 80.2 cm tall (-5.7 SDS height/age), and the youngest sister, aged 3 years, was 73.2 cm tall (-5.82 SDS height/age). Their clinical and biochemical features are typical of LS patients, such as high serum level of GH and low IGF1 concentrations. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Laron Syndrome; Growth hormone; Growth hormone receptor; Genetics. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500102 |
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| Registros recuperados: 189 | |
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