Ancestries
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. How history and geography may explain the distribution in the Comorian archipelago of a novel mutation in DNA repair-deficient xeroderma pigmentosum patients
Abstract Xeroderma pigmentosum (XP) is a rare, genetic, autosomal nucleotide excision repair-deficient disease characterized by sun-sensitivity and early appearance of skin and ocular tumors. Thirty-two black-skinned XP from Comoros, located in the Indian Ocean, were counted, rendering this area the highest world prevalence of XP. These patients exhibited a
Genet. Mol. Biol.. Publicado em: 13/12/2019
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2. A systematic scoping review of the genetic ancestry of the Brazilian population
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 inclu
Genet. Mol. Biol.. Publicado em: 14/11/2019
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3. Interethnic admixture and the evolution of Latin American populations
A general introduction to the origins and history of Latin American populations is followed by a systematic review of the data from molecular autosomal assessments of the ethnic/continental (European, African, Amerindian) ancestries for 24 Latin American countries or territories. The data surveyed are of varying quality but provide a general picture of the p
Genet. Mol. Biol.. Publicado em: 2014
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4. Genetic signatures of parental contribution in black and white populations in Brazil
Two hundred and three individuals classified as white were tested for 11 single nucleotide polymorphisms plus two insertion/deletions in their Y-chromosomes. A subset of these individuals (n = 172) was also screened for sequences in the first hypervariable segment of their mitochondrial DNA (mtDNA). In addition, complementary studies were done for 11 of the
Publicado em: 2010
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5. DNA tests probe the genomic ancestry of Brazilians
We review studies from our laboratories using different molecular tools to characterize the ancestry of Brazilians in reference to their Amerindian, European and African roots. Initially we used uniparental DNA markers to investigate the contribution of distinct Y chromosome and mitochondrial DNA lineages to present-day populations. High levels of genetic ad
Brazilian Journal of Medical and Biological Research. Publicado em: 11/09/2009
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6. Genetic signatures of parental contribution in black and white populations in Brazil
Two hundred and three individuals classified as white were tested for 11 single nucleotide polymorphisms plus two insertion/deletions in their Y-chromosomes. A subset of these individuals (n = 172) was also screened for sequences in the first hypervariable segment of their mitochondrial DNA (mtDNA). In addition, complementary studies were done for 11 of the
Genetics and Molecular Biology. Publicado em: 10/01/2009
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7. Association of polymorphisms at the ADIPOR1 regulatory region with type 2 diabetes and body mass index in a Brazilian population with European or African ancestry
Association studies between ADIPOR1 genetic variants and predisposition to type 2 diabetes (DM2) have provided contradictory results. We determined if two single nucleotide polymorphisms (SNP c.-8503G>A and SNP c.10225C>G) in regulatory regions of ADIPOR1 in 567 Brazilian individuals of European (EA; N = 443) or African (AfA; N = 124) ancestry from rural (qu
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-06
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8. Resistência cultural afro-descendente na zona leste de São Paulo: o movimento negro "Fala Negão Fala Mulher" (1980-2008)
In the present work I analyze the construction of conceptions of pertaining and ancestry among groups african-descendants, more specifically the negro movement Fala Negão Fala Mulher. The trajectory of these people that seek to support theirs cause on culture, theirs modes and practice in theirs experience of life. Having the city of São Paulo as place of
Publicado em: 2008
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9. Análise de polimorfismo no gene CTLA-4 em pacientes com paracoccidioidomicose
The CTLA-4 protein is mainly expressed in activated T cells and plays an essential role in the immune response through its regulatory effect on T cell activation. This activity is mediated by the binding of CTLA-4 to molecules of the B7 family that are expressed by antigen-presenting cells. Polymorphisms of the CTLA-4 gene have been correlated to several aut
Publicado em: 2008
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10. Genetic potential of population Ouro Negro x BRS Valente bean families / Potencial genético de famílias de feijoeiro da população Ouro Negro x BRS Valente
This work shows the analysis of 192 segregating families derived from the crossing of Ouro Negro and BRS Valente cultivars. The purpose is to develop black beans lines that are resistant to antracnose (Colletotrichum lindemuthianum) and rust (Uromyces appendiculatus), and also to have desirable agronomic traits such as high productivity of grain, erect archi
Publicado em: 2008
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11. Ecogenômica de archaea e monitoramento de comunidades de procariotos redutores de sulfato: aplicações na indústria de petróleo e gás
The human activities responsible for the ambient degradation in the modern world are diverse. The industrial activities are preponderant in the question of the impact consequences for brazilian ecosystems. Amongst the human activities, the petroliferous industry in operation in Potiguar Petroliferous Basin (PPB) displays the constant risk of ambient impacts
Publicado em: 2008
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12. Insecticide and fungicide activity of the ethanolic extracts of Pachira aquatica in Aubl Hypothenemus hampei (Ferrari) and Fusarium sp / ATIVIDADE INSETICIDA E FUNGICIDA DO EXTRATO ETANÓLICO DE Pachira aquatica AUBL SOBRE Hypothenemus hampei (FERRARI) E Fusarium sp
The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae), is considered as one of the principals plagues of the coffee tree, attacking the fruits all maturation phases. It possesses a short biological cycle and has a great capacity of proliferation, thus causing a phytossanitary problem in all the producing regions of coffee. Initial ef
Publicado em: 2006