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| Souza,Aracele Maria de; Resende,Sarah Stela; Sousa,Taís Nóbrega de; Brito,Cristiana Ferreira Alves de. |
| Abstract The genetic background of the Brazilian population is mainly characterized by three parental populations: European, African, and Native American. The aim of this study was to overview the genetic ancestry estimates for different Brazilian geographic regions and analyze factors involved in these estimates. In this systematic scoping review were included 51 studies, comprehending 81 populations of 19 states from five regions of Brazil. To reduce the potential of bias from studies with different sampling methods, we calculated the mean genetic ancestry weighted by the number of individuals. The weighted mean proportions of European, African, and Native American ancestries were 68.1%, 19.6%, and 11.6%, respectively. At the regional level, the highest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scoping review; Genetic ancestry; Brazilian population; Genetic admixture. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400495 |
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| Urbano,L; Portilla,E.C; Builes,J.J; Gusmão,L; Sierra-Torres,C.H. |
| Genetic markers with allele distribution differences in human populations provide human ancestry information that can be used to evaluate admixture proportions in different ethnic groups, including stratification in genetic association studies. The aim of this study was to determine the African, European and Native American admixture proportion by making use of 46 insertion-deletion informative ancestry record markers set in 500 Latin American people in the Department of Cauca, Colombia. Allelic frequencies were established, Hardy Weinberg test was performed, comparisons in genetic distances among population groups were estimated using Arlequin v 3.5, and STRUCTURE v 2.3.4 software was used to determine the population’s ancestry admixture. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic ancestry; InDels; AIMs; Latin America; Human populations. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332016000300004 |
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| Lins,Tulio C.; Pires,Alause S.; Paula,Roberta S.; Moraes,Clayton F.; Vieira,Rodrigo G.; Vianna,Lucy G.; Nobrega,Otávio T.; Pereira,Rinaldo W.. |
| The prevalence of metabolic disorders varies among ethnic populations and these disorders represent a critical health care issue for elderly women. This study investigated the correlation between genetic ancestry and body composition, metabolic traits and clinical status in a sample of elderly women. Clinical, nutritional and anthropometric data were collected from 176 volunteers. Genetic ancestry was estimated using 23 ancestry-informative markers. Pearsons correlation test was used to examine the relationship between continuous variables and an independent samples t-test was used to compare the means of continuous traits within categorical variables. Overall ancestry was a combination of European (57.49%), Native American (25.78%) and African (16.73%).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dyslipidemia; Genetic ancestry; Lipid profile; Obesity; Postmenopausal women. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400005 |
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