Genetic Signatures
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Green turtle (Chelonia mydas) genetic diversity at Paranaguá Estuarine Complex feeding grounds in Brazil
Sea turtles are marine reptiles that undertake long migrations through their life, with limited information regarding juvenile stages. Feeding grounds (FGs), where they spend most of their lives, are composed by individuals from different natal origins, known as mixed stock populations. The aim of this study was to assess genetic composition, natal origins a
Genet. Mol. Biol.. Publicado em: 2015-09
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2. Genetic and morphological characterisation of a new species of the genus Hysterothylacium (Nematoda) from Paralichthys isosceles Jordan, 1890 (Pisces: Teleostei) of the Neotropical Region, state of Rio de Janeiro, Brazil
Taking into account the difficulties of taxonomic identification of larval anisakid nematodes based on morphological characters, genetic analyses were performed, together with those usually applied, in order to identify anisakid larvae found in the flounder Paralichthys isosceles from the littoral of the state of Rio de Janeiro, Brazil. The analysis of 1,820
Memórias do Instituto Oswaldo Cruz. Publicado em: 2012-03
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3. Personalized medicine: caught between hope, hype and the real world
Genomic and personalized medicine have become buzz phrases that pervade all fields of medicine. Rapid advances in "-omics" fields of research (chief of which are genomics, proteinomics, and epigenomics) over the last few years have allowed us to dissect the molecular signatures and functional pathways that underlie disease initiation and progression and to i
Clinics. Publicado em: 2012
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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. História Evolutiva do HIV-1 no Brasil
Characterizing the different HIV-1 subtypes prevalent in a geographic region as well as understanding the origin and dissemination of these subtypes are essential to define prevention and intervention strategies targeting local HIV/AIDS epidemics. The present study analyzed 895 pol sequences, available at GenBank, aiming to describe the main HIV-1 subtypes p
Publicado em: 2010
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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. Identification of genetic signatures in coding region of the small subunit ribosomal RNA of Cryptosporidium spp.: molecular characterization of samples from mammals and birds / Identificação de assinaturas genéticas em região codificadora da menor unidade ribossômica de Cryptosporidium spp: caracterização molecular de amostras de mamíferos e aves
The objectives of this study were to identify 18S rDNA sequences of Cryptosporidium spp. From various species of hosts and to avaluate the variability in gene sequences of this locus, aiming the design of molecular probes with better diagnostic efficiency for the detection and identification of this parasite. It was collected 392 samples of domestic animals
Publicado em: 2009
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8. Caracterização molecular de isolados de Trypanosoma cruzi obtidos de mulheres durante a fase crônica da doença de Chagas
Chagas disease is a zoonotic disease caused by a protozoan plagued called Trypanosoma cruzi, it is a particular problem in Latin America, where it is estimated that 12 to 14 million people are infected. The populations of Trypanosoma cruzi can be divided into two major groups, the Trypanossoma cruzi I (TCI) and Trypanossoma cruzi II (TCII), the last being mo
Publicado em: 2008
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9. Evolução de terrenos tectono-metamórficos da Serrania do Ribeira e Planalto Alto Turvo (SP, PR) / Evolution of tectono-metamorphic terranes of the Ribeira Ridge and Alto Turvo Plateau, SE Brazil
Numerous Precambrian terranes of enigmatic origin are recognized in the Ribeira Valley and Alto Turvo Plateau regions (Southeastern Brazil), based on contrasting evolutive histories and distinct lithotectonic, metamorphic and structural patterns. These suspect terranes form three major composite terranes juxtaposed during the late Brasiliano Cycle: Apiaí Te
Publicado em: 2008
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10. Polymorphism of the Human Immunodeficiency Virus Type 1 in Brazil: Genetic Characterization of the nef Gene and Implications for Vaccine Design
Most of the Brazilian HIV-1 samples have been characterized based on the structural genes (env, gag and pol) and no data concerning the variability of the accessory genes such as nef have been available so far. Considering the role of the nef on virus biology and the inclusion of this region in some HIV/AIDS vaccine products under testing, the purpose of thi
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-06
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11. Distinctive genetic signatures in the Libyan Jews
Unlinked autosomal microsatellites in six Jewish and two non-Jewish populations were genotyped, and the relationships among these populations were explored. Based on considerations of clustering, pairwise population differentiation, and genetic distance, we found that the Libyan Jewish group retains genetic signatures distinguishable from those of the o
The National Academy of Sciences.
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12. Distinguishing human ethnic groups by means of sequences from Helicobacter pylori: Lessons from Ladakh
The history of mankind remains one of the most challenging fields of study. However, the emergence of anatomically modern humans has been so recent that only a few genetically informative polymorphisms have accumulated. Here, we show that DNA sequences from Helicobacter pylori, a bacterium that colonizes the stomachs of most humans and is usually transmitted
National Academy of Sciences.