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Mut P, Bertoni B, Sapiro R, Hidalgo PC, Torres A, Azambuja C, Sans M. Insights into the Y chromosome human diversity in Uruguay. Am J Hum Biol 2023; 35:e23963. [PMID: 37493343 DOI: 10.1002/ajhb.23963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/26/2023] [Accepted: 07/04/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND With regard to the origin of its population and microevolutionary processes, Uruguay exhibits distinctive features that distinguish it from other countries in Latin America, while at the same time sharing several similarities. In this article, we will focus on the variability of paternal genetic lineages in two geographical regions with different histories that can be considered as examples of distinct populations for the continent. In general terms, the genetic diversity is a result of different demographic processes related to the American conquest and colonisation. These resulted in distinct ancestral components which vary geographical and depend on the distribution by sex within these components. In Uruguay, native maternal haplogroups are significantly more frequent in the North. Although there are several studies about the geneticvariability of Uruguay, little is known about male genetic lineages. AIMS The aim of this work is to present an updated study of the male genetic variability of the Uruguayan population. METHODS We analyzed 13 biallelic markers and 27 STRs located in the male-specific region of the Y chromosome for 157 males: 98 from the capital, Montevideo, and 59 from Tacuarembó. RESULTS Almost all haplogroups found in both locations are European (99% and 93.2% respectively). One Sub-Saharan African haplogroup was found in Montevideo (1%) and 2 in Tacuarembó (3%), while Native haplogroups were found only in Tacuarembó, evidencing a strong sex-biased admixture. By crossing genetic and genealogical information we could relate European haplogroups with different waves and times of migrations. DISCUSSION Network analysis indicated a very diverse male population, suggesting that European migrants came from heterogeneous geographic locations and in different waves. Tacuarembó has closer population affinities with Iberian populations while Montevideo is more diverse. Male population expansion expansion, can be explained by the large number of migrants that arrived during the XIX century and the first half of the XX century. CONCLUSIONS The Uruguayan male gene pool is the result of several migration waves with diverse origins, with strong sex-biased admixture that can be explained by the European migration, the violence against the indigenous males, and the segregation of the Africansadmixture that can be explained due to European migration, violence against Natives, and segregation against African males.admixture that can be explained due to European migration, violence against Natives, and segregation against African males.admixture that can be explained due to European migration, violence against Natives, and segregation against African males.admixture that can be explained due to European migration, violence against Natives, and segregation of hte Africans.
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Affiliation(s)
- Patricia Mut
- Departamento de Antropología Biológica, Facultad de Humanidades y Ciencias de la Educación, UdelaR, Montevideo, Uruguay
| | - Bernardo Bertoni
- Departamento de Genética, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - Rossana Sapiro
- Departamento de Histología y Embriología, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - Pedro C Hidalgo
- Polo de Desarrollo Universitario Diversidad Genética Humana, Centro Universitario Noreste, Tacuarembó, Uruguay
| | | | | | - Mónica Sans
- Departamento de Antropología Biológica, Facultad de Humanidades y Ciencias de la Educación, UdelaR, Montevideo, Uruguay
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Lopes MQP, Teixeira RLF, Cabello PH, Nery JAC, Sales AM, Nahn J. R. EP, Moreira MV, Stahlke EVR, Possuelo LG, Rossetti MLR, Rabahi MF, Silva LFM, Leme PA, Woods WJ, Nobre ML, de Oliveira MLWDR, Narahashi K, Cavalcanti M, Suffys PN, Boukouvala S, Gallo MEN, Santos AR. Human N-acetyltransferase 2 ( NAT2) gene variability in Brazilian populations from different geographical areas. Front Pharmacol 2023; 14:1278720. [PMID: 38035025 PMCID: PMC10684696 DOI: 10.3389/fphar.2023.1278720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction: Several polymorphisms altering the NAT2 activity have already been identified. The geographical distribution of NAT2 variants has been extensively studied and has been demonstrated to vary significantly among different ethnic population. Here, we describe the genetic variability of human N-acetyltransferase 2 (NAT2) gene and the predominant genotype-deduced acetylation profiles of Brazilians. Methods: A total of 964 individuals, from five geographical different regions, were genotyped for NAT2 by sequencing the entire coding exon. Results: Twenty-three previously described NAT2 single nucleotide polymorphisms (SNPs) were identified, including the seven most common ones globally (c.191G>A, c.282C>T, c.341T>C, c.481C>T, c.590G>A, c.803A>G and c.857G>A). The main allelic groups were NAT2*5 (36%) and NAT2*6 (18.2%), followed to the reference allele NAT2*4 (20.4%). Combined into genotypes, the most prevalent allelic groups were NAT2*5/*5 (14.6%), NAT2*5/*6 (11.9%) and NAT2*6/*6 (6.2%). The genotype deduced NAT2 slow acetylation phenotype was predominant but showed significant variability between geographical regions. The prevalence of slow acetylation phenotype was higher in the Northeast, North and Midwest (51.3%, 45.5% and 41.5%, respectively) of the country. In the Southeast, the intermediate acetylation phenotype was the most prevalent (40.3%) and, in the South, the prevalence of rapid acetylation phenotype was significantly higher (36.7%), when compared to other Brazilian states (p < 0.0001). Comparison of the predicted acetylation profile among regions showed homogeneity among the North and Northeast but was significantly different when compared to the Southeast (p = 0.0396). The Southern region was significantly different from all other regions (p < 0.0001). Discussion: This study contributes not only to current knowledge of the NAT2 population genetic diversity in different geographical regions of Brazil, but also to the reconstruction of a more accurate phenotypic picture of NAT2 acetylator profiles in those regions.
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Affiliation(s)
- Márcia Quinhones P. Lopes
- Laboratory of Molecular Biology Applied to Mycobacteria, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Raquel Lima F. Teixeira
- Laboratory of Molecular Biology Applied to Mycobacteria, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Pedro Hernan Cabello
- Laboratory of Human Genetics, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - José Augusto C. Nery
- Leprosy Laboratory, Souza Araújo Outpatient Clinic, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Anna Maria Sales
- Leprosy Laboratory, Souza Araújo Outpatient Clinic, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | | | | | | | - Lia Gonçalves Possuelo
- Department of Molecular Biology and Biotechnology, IB and Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria Lucia R. Rossetti
- Department of Molecular Biology and Biotechnology, IB and Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marcelo F. Rabahi
- Anuar Auad Infectious Disease Reference Hospital, Goiania, GO, Brazil
| | | | | | | | | | | | | | | | - Philip Noel Suffys
- Laboratory of Molecular Biology Applied to Mycobacteria, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Sotiria Boukouvala
- Laboratory of Molecular Genetics and Pharmacogenomics - Toxicogenomics, Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Maria Eugênia N. Gallo
- Leprosy Laboratory, Souza Araújo Outpatient Clinic, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Adalberto Rezende Santos
- Laboratory of Molecular Biology Applied to Mycobacteria, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
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Köksal Z, Meyer OL, Andersen JD, Gusmão L, Mogensen HS, Pereira V, Børsting C. Pitfalls and challenges with population assignments of individuals from admixed populations: Applying Genogeographer on Brazilian individuals. Forensic Sci Int Genet 2023; 67:102934. [PMID: 37713981 DOI: 10.1016/j.fsigen.2023.102934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/06/2023] [Accepted: 09/06/2023] [Indexed: 09/17/2023]
Abstract
The assignment of individuals to a population can be of importance for the identification of mass disaster victims or criminal offenders in the field of forensic genetics. This assignment is based on biostatistical methods that process data of ancestry informative markers (AIMs), which are selected based on large allele frequency differences between the populations of interest. However, population assignments of individuals with an admixed genetic background are challenging. Admixed individuals are genetic mosaics of chromosomal segments from the parental populations, which may lead to ambiguous or no population assignment. This is problematic since admixture events are a substantial part of human history. In this study, we present challenges of interpreting the evidential weight of population assignments. We used Genogeographer for likelihood ratio (LR) calculations and Brazilians as examples of admixed individuals. Brazilians are a very heterogenous population representing a three-way admixture between Native Americans, Europeans, and Africans. Ancestry informative markers were typed in a total of 589 individuals from Brazil using the Precision ID Ancestry Panel. The Brazilians were assigned to six metapopulations (East Asia, Europe, Middle East, North Africa, South-Central Asia, Sub-Saharan Africa) defined in the Genogeographer software and LRs were calculated if the AIM profile was not an outlier in all metapopulations and simulated two-way (1:1) admixtures of the six metapopulations. Population assignments failed for 55% of the samples. These samples had significantly higher genetic contributions from East Asia, South-Central Asia and Sub-Saharan Africa, and significantly lower genetic contributions from Europe. Most of the individuals with population assignments were assigned to the metapopulations of Middle East (58%) or North Africa (36%), followed by Europe (4%), South-Central Asia (1%), and Sub-Saharan Africa (1%). For 8% of the samples, population assignments were only possible when assignments to simulated two-way (1:1) admixtures of the six metapopulations were considered. Most of these individuals were assigned to two-way admixtures of North Africa, South-Central Asia, or Sub-Saharan Africa. Relatively low median likelihood ratios (LRs<1000) were observed when comparing population likelihoods for Europe, Middle East, North Africa, South-Central Asia, or simulated 1:1 admixtures of these metapopulations. Comparisons including East Asian or Sub-Saharan African populations resulted in larger median LRs (LR>1010). The results suggested that the Precision ID Ancestry Panel provided too little information and that additional markers specifically selected for sub-continental differentiation may be required for accurate population assignment of admixed individuals. Furthermore, a Genogeographer database with additional populations including admixed populations would be advantageous for interpretation of admixed AIM profiles. It would likely increase the number of population assignments and illustrate alternatives to the most likely population, which would be valuable information for the case officer when writing the case report.
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Affiliation(s)
- Zehra Köksal
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Olivia Luxford Meyer
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeppe Dyrberg Andersen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Helle Smidt Mogensen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Vania Pereira
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Claus Børsting
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Fleskes RE, Owsley DW, Bruwelheide KS, Barca KG, Griffith DR, Cabana GS, Schurr TG. Historical genomes elucidate European settlement and the African diaspora in Delaware. Curr Biol 2023; 33:2350-2358.e7. [PMID: 37207647 DOI: 10.1016/j.cub.2023.04.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 02/01/2023] [Accepted: 04/24/2023] [Indexed: 05/21/2023]
Abstract
The 17th-century colonization of North America brought thousands of Europeans to Indigenous lands in the Delaware region, which comprises the eastern boundary of the Chesapeake Bay in what is now the Mid-Atlantic region of the United States.1 The demographic features of these initial colonial migrations are not uniformly characterized, with Europeans and European-Americans migrating to the Delaware area from other countries and neighboring colonies as single persons or in family units of free persons, indentured servants, or tenant farmers.2 European colonizers also instituted a system of racialized slavery through which they forcibly transported thousands of Africans to the Chesapeake region. Historical information about African-descended individuals in the Delaware region is limited, with a population estimate of less than 500 persons by 1700 CE.3,4 To shed light on the population histories of this period, we analyzed low-coverage genomes of 11 individuals from the Avery's Rest archaeological site (circa 1675-1725 CE), located in Delaware. Previous osteological and mitochondrial DNA (mtDNA) sequence analyses showed a southern group of eight individuals of European maternal descent, buried 15-20 feet from a northern group of three individuals of African maternal descent.5 Autosomal results further illuminate genomic similarities to Northwestern European reference populations or West and West-Central African reference populations, respectively. We also identify three generations of maternal kin of European ancestry and a paternal parent-offspring relationship between an adult and child of African ancestry. These findings expand our understanding of the origins and familial relationships in late 17th and early 18th century North America.
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Affiliation(s)
- Raquel E Fleskes
- Department of Anthropology, University of Connecticut, Storrs, CT 06269, USA; Department of Anthropology, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Douglas W Owsley
- Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA.
| | - Karin S Bruwelheide
- Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA
| | - Kathryn G Barca
- Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA
| | | | - Graciela S Cabana
- Department of Anthropology, University of Tennessee, Knoxville, TN 37996, USA; Molecular Anthropology Laboratories, University of Tennessee, Knoxville, TN 37996, USA
| | - Theodore G Schurr
- Department of Anthropology, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Sampaio B, Dos Santos Silva AM, de Sá Paiva Leitão Júnior S, de Souza Liberal AT, da Cruz HLA, de Queiroz Balbino V. Allelic frequencies distribution and forensic parameters of 23 autosomal short tandem repeats in the population of the State of Pernambuco, Brazil. Leg Med (Tokyo) 2022; 59:102112. [PMID: 35839577 DOI: 10.1016/j.legalmed.2022.102112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/30/2022] [Accepted: 07/01/2022] [Indexed: 10/31/2022]
Abstract
Located in the Northeast Region, the Pernambuco State is one of the 27 federative units of Brazil. Here, we determined populational data for 23 short tandem repeat (STR) markers - CSF1PO, FGA, TH01, TPOX, vWA, D1S1656, D2S1338, D2S441, D3S1358, D5S818, D7S820, D8S1179, D10S1248, D12S391, D13S317, D16S539, D18S51, D19S433, D21S11, D22S1045, PENTA D, PENTA E and SE33 - of the Pernambuco population. The sample consisted of 767 healthy, adult, unrelated individuals (437 males, 330 females) born and resident in the State of Pernambuco. STRs were amplified using three multiplex kits, according to the availability: PowerPlex® Fusion 6C System (Promega Corporation), PowerPlex® Fusion System (Promega Corporation) and GlobalFiler™ Express (Thermo Fisher Scientific). Allelic frequencies, forensic parameters and Hardy-Weinberg equilibrium determinations were estimated for all the 23 loci. No deviations from the Hardy-Weinberg equilibrium were observed for any of the markers, after Bonferroni correction. We observed that the most and less informative markers were SE33 and TPOX, respectively. The combined power of discrimination (CPD) was 0.99999999999999999999999999999, and the combined power of exclusion (CPE) was 0.99999999997. The cumulative typical paternity index was 37,919,301,869.3021. Interpopulation analyses (Nei's genetic distance) based on the expanded CODIS core loci was performed between the Pernambuco sample and other global populations. Pernambuco was the closest Brazilian population to African group and stayed distant from the Native American group. This work contributed to show that a panel of 23 autosomal STR loci is very informative, being able for forensic applications related in this population.
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Affiliation(s)
- Bruno Sampaio
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil.
| | - Abigail Marcelino Dos Santos Silva
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil
| | - Sérgio de Sá Paiva Leitão Júnior
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil
| | - Anna Theresa de Souza Liberal
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil
| | - Heidi Lacerda Alves da Cruz
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil
| | - Valdir de Queiroz Balbino
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco (PE), Brazil
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Testing the Ion AmpliSeq™ HID Y-SNP Research Panel v1 for performance and resolution in admixed South Americans of haplogroup Q. Forensic Sci Int Genet 2022; 59:102708. [DOI: 10.1016/j.fsigen.2022.102708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 11/18/2022]
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Joerin-Luque IA, Augusto DG, Calonga-Solís V, de Almeida RC, Lopes CVG, Petzl-Erler ML, Beltrame MH. Uniparental markers reveal new insights on subcontinental ancestry and sex-biased admixture in Brazil. Mol Genet Genomics 2022; 297:419-435. [DOI: 10.1007/s00438-022-01857-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 01/04/2022] [Indexed: 10/19/2022]
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Avila E, Speransa PA, Lindholz CG, Kahmann A, Alho CS. Haplotype distribution in a forensic full mtDNA genome database of admixed Southern Brazilians and its association with self-declared ancestry and pigmentation traits. Forensic Sci Int Genet 2021; 57:102650. [PMID: 34972071 DOI: 10.1016/j.fsigen.2021.102650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/01/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND The advent of massively parallel sequencing (MPS) applications focused on the generation of forensic-quality full mitochondrial genome sequences led to a popularization of the technique on a global scale. However, the lack of forensic-graded population databases has refrained a wider adoption of full genome sequences as the industry standard, despite its better discrimination capacity of individual maternal lineages. PURPOSE This work describes a forensic-oriented full mtDNA genome database comprised of 480 samples from a Southern Brazilian population. METHODS A collection of mitochondrial sequences were obtained from low-pass, full genome DNA sequencing results. The complete sample set was evaluated regarding haplotype composition and distribution. Summary statistics and forensic parameters were calculated and are presented for the database, with detailed information concerning the impact of removing genetic information in the form of specific variants or increasingly larger genomic regions. Interpopulational analysis comparing haplotypical diversity in Brazilian and 26 worldwide populations was also performed. The association between mitochondrial genetic variability and phenotypic diversity was also evaluated in populations, with self-declared ancestry and three distinct phenotypic pigmentation traits (eyes, skin and hair colors) as parameters. RESULTS The presented database can be used to evaluate mitochondrial-related genetic evidence, providing LR values of up to 20,465 for unobserved haplotypes. Haplotype distribution in Southern Brazil seems to be different than the remaining of the country, with a larger contribution of maternal lines with European origin. Despite association can be found between lighter and darker phenotypes or self-declared ancestry and haplotype distribution, prediction models cannot be reliably proposed due to the admixed nature of the Brazilian population. CONCLUSIONS The proposed database provides a basis for statistical calculation and frequency estimation of full mitochondrial genomes, and can be part of an integrated, representative, national database comprising most of the genetic diversity of maternal lineages in the country.
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Affiliation(s)
- Eduardo Avila
- Forensic Genetics Laboratory, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Technical Scientific Section, Federal Police Department in Rio Grande do Sul State, Porto Alegre, RS, Brazil; National Institute of Science and Technology - Forensic Science, Porto Alegre, RS, Brazil.
| | - Pietro Augusto Speransa
- Forensic Genetics Laboratory, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Catieli Gobetti Lindholz
- Forensic Genetics Laboratory, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Alessandro Kahmann
- National Institute of Science and Technology - Forensic Science, Porto Alegre, RS, Brazil; Institute of Mathematics, Statistics and Physics, Federal University of Rio Grande, Rio Grande, RS, Brazil.
| | - Clarice Sampaio Alho
- Forensic Genetics Laboratory, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; National Institute of Science and Technology - Forensic Science, Porto Alegre, RS, Brazil.
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Simão F, Ribeiro J, Vullo C, Catelli L, Gomes V, Xavier C, Huber G, Bodner M, Quiroz A, Ferreira AP, Carvalho EF, Parson W, Gusmão L. The Ancestry of Eastern Paraguay: A Typical South American Profile with a Unique Pattern of Admixture. Genes (Basel) 2021; 12:1788. [PMID: 34828394 PMCID: PMC8625094 DOI: 10.3390/genes12111788] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 11/17/2022] Open
Abstract
Immigrants from diverse origins have arrived in Paraguay and produced important demographic changes in a territory initially inhabited by indigenous Guarani. Few studies have been performed to estimate the proportion of Native ancestry that is still preserved in Paraguay and the role of females and males in admixture processes. Therefore, 548 individuals from eastern Paraguay were genotyped for three marker sets: mtDNA, Y-SNPs and autosomal AIM-InDels. A genetic homogeneity was found between departments for each set of markers, supported by the demographic data collected, which showed that only 43% of the individuals have the same birthplace as their parents. The results show a sex-biased intermarriage, with higher maternal than paternal Native American ancestry. Within the native mtDNA lineages in Paraguay (87.2% of the total), most haplogroups have a broad distribution across the subcontinent, and only few are concentrated around the Paraná River basin. The frequency distribution of the European paternal lineages in Paraguay (92.2% of the total) showed a major contribution from the Iberian region. In addition to the remaining legacy of the colonial period, the joint analysis of the different types of markers included in this study revealed the impact of post-war migrations on the current genetic background of Paraguay.
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Affiliation(s)
- Filipa Simão
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro 20550-013, Brazil; (F.S.); (J.R.); (A.P.F.); (E.F.C.)
| | - Julyana Ribeiro
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro 20550-013, Brazil; (F.S.); (J.R.); (A.P.F.); (E.F.C.)
| | - Carlos Vullo
- DNA Forensic Laboratory, Argentinean Forensic Anthropology Team, Córdoba 14001, Argentina; (C.V.); (L.C.)
| | - Laura Catelli
- DNA Forensic Laboratory, Argentinean Forensic Anthropology Team, Córdoba 14001, Argentina; (C.V.); (L.C.)
| | - Verónica Gomes
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4099-002 Porto, Portugal;
- Institute of Pathology and Molecular Immunology, University of Porto (IPATIMUP), 4099-002 Porto, Portugal
| | - Catarina Xavier
- Institute of Legal Medicine, Medical University of Innsbruck, 6020 Innsbruck, Austria; (C.X.); (G.H.); (M.B.)
| | - Gabriela Huber
- Institute of Legal Medicine, Medical University of Innsbruck, 6020 Innsbruck, Austria; (C.X.); (G.H.); (M.B.)
| | - Martin Bodner
- Institute of Legal Medicine, Medical University of Innsbruck, 6020 Innsbruck, Austria; (C.X.); (G.H.); (M.B.)
| | - Alfredo Quiroz
- Instituto de Previsión Social, Asunción 100153, Paraguay;
| | - Ana Paula Ferreira
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro 20550-013, Brazil; (F.S.); (J.R.); (A.P.F.); (E.F.C.)
| | - Elizeu F. Carvalho
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro 20550-013, Brazil; (F.S.); (J.R.); (A.P.F.); (E.F.C.)
| | - Walther Parson
- Institute of Legal Medicine, Medical University of Innsbruck, 6020 Innsbruck, Austria; (C.X.); (G.H.); (M.B.)
- Forensic Science Program, The Pennsylvania State University, State College, PA 16801, USA
| | - Leonor Gusmão
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro 20550-013, Brazil; (F.S.); (J.R.); (A.P.F.); (E.F.C.)
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Azulay RSDS, Porto LC, Silva DA, Tavares MDG, Reis RMDF, Nascimento GC, Damianse SDSP, Rocha VCDC, Magalhães M, Rodrigues V, Carvalho PRVB, Faria MDS, Gomes MB. Genetic ancestry inferred from autosomal and Y chromosome markers and HLA genotypes in Type 1 Diabetes from an admixed Brazilian population. Sci Rep 2021; 11:14157. [PMID: 34239025 PMCID: PMC8266844 DOI: 10.1038/s41598-021-93691-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 06/29/2021] [Indexed: 12/19/2022] Open
Abstract
This study aimed to investigate the relationship between genetic ancestry inferred from autosomal and Y chromosome markers and HLA genotypes in patients with Type 1 Diabetes from an admixed Brazilian population. Inference of autosomal ancestry; HLA-DRB1, -DQA1 and -DQB1 typifications; and Y chromosome analysis were performed. European autosomal ancestry was about 50%, followed by approximately 25% of African and Native American. The European Y chromosome was predominant. The HLA-DRB1*03 and DRB1*04 alleles presented risk association with T1D. When the Y chromosome was European, DRB1*03 and DRB1*04 homozygote and DRB1*03/DRB1*04 heterozygote genotypes were the most frequent. The results suggest that individuals from Maranhão have a European origin as their major component; and are patrilineal with greater frequency from the R1b haplogroup. The predominance of the HLA-DRB1*03 and DRB1*04 alleles conferring greater risk in our population and being more frequently related to the ancestry of the European Y chromosome suggests that in our population, the risk of T1D can be transmitted by European ancestors of our process miscegenation. However, the Y sample sizes of Africans and Native Americans were small, and further research should be conducted with large mixed sample sizes to clarify this possible association.
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Affiliation(s)
- Rossana Santiago de Sousa Azulay
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil.
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil.
| | - Luís Cristóvão Porto
- Histocompatibility and Cryopreservation Laboratory (HLA), Rio de Janeiro State University (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Dayse Aparecida Silva
- DNA Diagnostic Laboratory (LDD), Rio de Janeiro State University (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria da Glória Tavares
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
| | | | - Gilvan Cortês Nascimento
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
| | - Sabrina da Silva Pereira Damianse
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
| | - Viviane Chaves de Carvalho Rocha
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
| | - Marcelo Magalhães
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
- Clinical Research Center of the University Hospital of the Federal University of Maranhão (CEPEC - HUUFMA), São Luís, Brazil
| | - Vandilson Rodrigues
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
| | - Paulo Ricardo Vilas Boas Carvalho
- Histocompatibility and Cryopreservation Laboratory (HLA), Rio de Janeiro State University (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Manuel Dos Santos Faria
- Service of Endocrinology, University Hospital of the Federal University of Maranhão (HUUFMA/EBSERH), Rua Barão de Itapary, 227, Centro, São Luís, Maranhão, 65020-070, Brazil
- Research Group in Clinical and Molecular Endocrinology and Metabology (ENDOCLIM), São Luís, Brazil
- Clinical Research Center of the University Hospital of the Federal University of Maranhão (CEPEC - HUUFMA), São Luís, Brazil
| | - Marília Brito Gomes
- Diabetes Unit, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
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Phylogeographic review of Y chromosome haplogroups in Europe. Int J Legal Med 2021; 135:1675-1684. [PMID: 34216266 DOI: 10.1007/s00414-021-02644-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/16/2021] [Indexed: 10/20/2022]
Abstract
The Y chromosome has been widely explored for the study of human migrations. Due to its paternal inheritance, the Y chromosome polymorphisms are helpful tools for understanding the geographical distribution of populations all over the world and for inferring their origin, which is really useful in forensics. The remarkable historical context of Europe, with numerous migrations and invasions, has turned this continent into a melting pot. For this reason, it is interesting to study the Y chromosome variability and how it has contributed to improving our knowledge of the distribution and development of European male genetic pool as it is today. The analysis of Y lineages in Europe shows the predominance of four haplogroups, R1b-M269, I1-M253, I2-M438 and R1a-M420. However, other haplogroups have been identified which, although less frequent, provide significant evidence about the paternal origin of the populations. In addition, the study of the Y chromosome in Europe is a valuable tool for revealing the genetic trace of the different European colonizations, mainly in several American countries, where the European ancestry is mostly detected by the presence of the R1b-M269 haplogroup. Therefore, the objective of this review is to compile the studies of the Y chromosome haplogroups in current European populations, in order to provide an outline of these haplogroups which facilitate their use in forensic studies.
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Ambrosio IB, Braganholi DF, Orlando LBM, Andrekenas NC, da Mota Pontes I, da Silva DA, Astolfi-Filho S, de Carvalho EF, Cicarelli RMB, Gusmão L. Mutational data and population profiling of 23 Y-STRs in three Brazilian populations. Forensic Sci Int Genet 2020; 48:102348. [PMID: 32707472 DOI: 10.1016/j.fsigen.2020.102348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/22/2020] [Accepted: 06/26/2020] [Indexed: 11/18/2022]
Abstract
Y-chromosomal STRs are important markers in forensic genetics, due to some peculiar characteristics. The absence of recombination makes them a useful tool to infer kinship in complex cases involving distant paternal relatives, or to infer paternal bio-geographic ancestry. The presence of a single copy, being transmitted from father to son, allow tracing mutational events in Y-STRs without ambiguity. For the statistical interpretation of forensic evidences based on Y-STR profiles, it is necessary to have estimates on both mutation rates and haplotype frequencies. In this work, 407 father-son duos from São Paulo and Rio de Janeiro states and 204 unrelated individuals from Manaus were analyzed. Haplotype frequencies and mutation rates for the Y-STRs from the PowerPlex Y23 commercial kit were estimated. Thirty-six mutations were observed in 15 of the 22 Y-STRs analyzed, for an average mutation rate of 3.84 × 10-3 (95 % CI 2.69 × 10-3 to 5.32 × 10-3). All mutations in GAAA repeats occurred in alleles with 13 or more uninterrupted units. Mutations in GATA repeats were observed in alleles with 9-17 uninterrupted units. An analysis carried out in different father's age groups showed an increase of 2.48 times the mutation rate in the age group of 40-50 years, when compared to the 20-30 age group, in agreement with the described for autosomal STRs. A high haplotype diversity was found in the three Brazilian populations. Pairwise genetic distance analysis (FST) showed no significant differences between the three populations in this study, which were also close to populations with strong European influence. The highest distances among the Brazilian populations were with São Gabriel da Cachoeira, which has a high Native American ancestry.
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Affiliation(s)
- Isabela Brunelli Ambrosio
- Laboratório de Investigação de Paternidade, NAC - Faculdade de Ciências Farmacêuticas (FCFAr), Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), São Paulo, Brazil.
| | - Danilo Faustino Braganholi
- Laboratório de Investigação de Paternidade, NAC - Faculdade de Ciências Farmacêuticas (FCFAr), Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), São Paulo, Brazil
| | - Larissa Barros Muniz Orlando
- Laboratório de Genética Forense, do Instituto de Criminalística "Lorena do Santos Baptista" da Polícia Civil do Estado do Amazonas, Manaus, AM, Brazil
| | - Natalia Carolina Andrekenas
- Laboratório de Investigação de Paternidade, NAC - Faculdade de Ciências Farmacêuticas (FCFAr), Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), São Paulo, Brazil
| | - Isabel da Mota Pontes
- Laboratório de Diagnóstico Molecular, Universidade Federal do Amazonas/UFAM, Manaus, AM, Brazil
| | - Dayse Aparecida da Silva
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Spartaco Astolfi-Filho
- Laboratório de Diagnóstico Molecular, Universidade Federal do Amazonas/UFAM, Manaus, AM, Brazil
| | | | - Regina Maria Barretto Cicarelli
- Laboratório de Investigação de Paternidade, NAC - Faculdade de Ciências Farmacêuticas (FCFAr), Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), São Paulo, Brazil
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
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Schaan AP, Gusmão L, Jannuzzi J, Modesto A, Amador M, Marques D, Rabenhorst SH, Montenegro R, Lopes T, Yoshioka FK, Pinto G, Santos S, Costa L, Silbiger V, Ribeiro-Dos-Santos Â. New insights on intercontinental origins of paternal lineages in Northeast Brazil. BMC Evol Biol 2020; 20:15. [PMID: 31996123 PMCID: PMC6990597 DOI: 10.1186/s12862-020-1579-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/09/2020] [Indexed: 12/29/2022] Open
Abstract
Background The current Brazilian population is the product of centuries of admixture between intercontinental founding groups. Although previous results have revealed a heterogeneous distribution of mitochondrial lineages in the Northeast region, the most targeted by foreign settlers during the sixteenth century, little is known about the paternal ancestry of this particular population. Considering historical records have documented a series of territorial invasions in the Northeast by various European populations, we aimed to characterize the male lineages found in Brazilian individuals in order to discover to what extent these migrations have influenced the present-day gene pool. Our approach consisted of employing four hierarchical multiplex assays for the investigation of 45 unique event polymorphisms in the non-recombining portion of the Y-chromosome of 280 unrelated men from several Northeast Brazilian states. Results Primary multiplex results allowed the identification of six major haplogroups, four of which were screened for downstream SNPs and enabled the observation of 19 additional lineages. Results reveal a majority of Western European haplogroups, among which R1b-S116* was the most common (63.9%), corroborating historical records of colonizations by Iberian populations. Nonetheless, FST genetic distances show similarities between Northeast Brazil and several other European populations, indicating multiple origins of settlers. Regarding Native American ancestry, our findings confirm a strong sexual bias against such haplogroups, which represented only 2.5% of individuals, highly contrasting previous results for maternal lineages. Furthermore, we document the presence of several Middle Eastern and African haplogroups, supporting a complex historical formation of this population and highlighting its uniqueness among other Brazilian regions. Conclusions We performed a comprehensive analysis of the major Y-chromosome lineages that form the most dynamic migratory region from the Brazilian colonial period. This evidence suggests that the ongoing entry of European, Middle Eastern, and African males in the Brazilian Northeast, since at least 500 years, was significantly responsible for the present-day genetic architecture of this population.
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Affiliation(s)
- Ana Paula Schaan
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 - Cidade Universitária Prof. José Silveira Netto - Guamá, Belém, PA, 66075-110, Brazil
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), Institute of Biology, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Juliana Jannuzzi
- DNA Diagnostic Laboratory (LDD), Institute of Biology, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Antonio Modesto
- Center for Oncology Research, Federal University of Pará, Belém, PA, 66073-005, Brazil
| | - Marcos Amador
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 - Cidade Universitária Prof. José Silveira Netto - Guamá, Belém, PA, 66075-110, Brazil
| | - Diego Marques
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 - Cidade Universitária Prof. José Silveira Netto - Guamá, Belém, PA, 66075-110, Brazil
| | - Silvia Helena Rabenhorst
- Pathology and Legal Medicine Department, Federal University of Ceará, Fortaleza, CE, 60020-181, Brazil
| | - Raquel Montenegro
- Pathology and Legal Medicine Department, Federal University of Ceará, Fortaleza, CE, 60020-181, Brazil
| | - Thayson Lopes
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI, 64202-020, Brazil
| | - France Keiko Yoshioka
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI, 64202-020, Brazil
| | - Giovanny Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI, 64202-020, Brazil
| | - Sidney Santos
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 - Cidade Universitária Prof. José Silveira Netto - Guamá, Belém, PA, 66075-110, Brazil
| | - Lorenna Costa
- Clinical and Toxicological Analyses Department, Federal University of Rio Grande do Norte, Natal, RN, 59300-000, Brazil
| | - Vivian Silbiger
- Clinical and Toxicological Analyses Department, Federal University of Rio Grande do Norte, Natal, RN, 59300-000, Brazil
| | - Ândrea Ribeiro-Dos-Santos
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 - Cidade Universitária Prof. José Silveira Netto - Guamá, Belém, PA, 66075-110, Brazil. .,Center for Oncology Research, Federal University of Pará, Belém, PA, 66073-005, Brazil.
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Jannuzzi J, Ribeiro J, Alho C, de Oliveira Lázaro e Arão G, Cicarelli R, Simões Dutra Corrêa H, Ferreira S, Fridman C, Gomes V, Loiola S, da Mota MF, Ribeiro-dos-Santos Â, de Souza CA, de Sousa Azulay RS, Carvalho EF, Gusmão L. Male lineages in Brazilian populations and performance of haplogroup prediction tools. Forensic Sci Int Genet 2020; 44:102163. [DOI: 10.1016/j.fsigen.2019.102163] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/25/2019] [Accepted: 09/19/2019] [Indexed: 11/26/2022]
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15
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Analysis of 124 SNP loci included in HID Ampliseq identity panel in a small population of Rio de Janeiro, Brazil. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2019. [DOI: 10.1016/j.fsigss.2019.09.093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Cesar P, Dhyani A, Augusto Schwade L, Acordi P, Xerez Albuquerque C, Nina R, De Paula EV, Fraiji N. Epidemiological, clinical, and severity characterization of sickle cell disease in a population from the Brazilian Amazon. Hematol Oncol Stem Cell Ther 2019; 12:204-210. [DOI: 10.1016/j.hemonc.2019.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 03/21/2019] [Accepted: 04/28/2019] [Indexed: 11/25/2022] Open
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Sperb-Ludwig F, Pinheiro FC, Bettio Soares M, Nalin T, Ribeiro EM, Steiner CE, Ribeiro Valadares E, Porta G, Fishinger Moura de Souza C, Schwartz IVD. Glycogen storage diseases: Twenty-seven new variants in a cohort of 125 patients. Mol Genet Genomic Med 2019; 7:e877. [PMID: 31508908 PMCID: PMC6825860 DOI: 10.1002/mgg3.877] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/07/2019] [Accepted: 07/08/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Hepatic glycogen storage diseases (GSDs) are a group of rare genetic disorders in which glycogen cannot be metabolized to glucose in the liver because of enzyme deficiencies along the glycogenolytic pathway. GSDs are well-recognized diseases that can occur without the full spectrum, and with overlapping in symptoms. METHODS We analyzed a cohort of 125 patients with suspected hepatic GSD through a next-generation sequencing (NGS) gene panel in Ion Torrent platform. New variants were analyzed by pathogenicity prediction tools. RESULTS Twenty-seven new variants predicted as pathogenic were found between 63 variants identified. The most frequent GSD was type Ia (n = 53), followed by Ib (n = 23). The most frequent variants were p.Arg83Cys (39 alleles) and p.Gln347* (14 alleles) in G6PC gene, and p.Leu348Valfs (21 alleles) in SLC37A4 gene. CONCLUSIONS The study presents the largest cohort ever analyzed in Brazilian patients with hepatic glycogenosis. We determined the clinical utility of NGS for diagnosis. The molecular diagnosis of hepatic GSDs enables the characterization of diseases with similar clinical symptoms, avoiding hepatic biopsy and having faster results.
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Affiliation(s)
- Fernanda Sperb-Ludwig
- Post‐Graduation Program in Genetics and Molecular BiologyUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
- Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN)Hospital de Clínicas de Porto AlegrePorto AlegreBrazil
| | - Franciele Cabral Pinheiro
- Post‐Graduation Program in Genetics and Molecular BiologyUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
- Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN)Hospital de Clínicas de Porto AlegrePorto AlegreBrazil
| | - Malu Bettio Soares
- Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN)Hospital de Clínicas de Porto AlegrePorto AlegreBrazil
| | - Tatiele Nalin
- Post‐Graduation Program in Genetics and Molecular BiologyUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
| | | | | | - Eugênia Ribeiro Valadares
- Departamento de Propedêutica ComplementarFaculdade de Medicina da Universidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Gilda Porta
- Hospital Infantil Menino JesusSão PauloBrazil
| | | | - Ida Vanessa Doederlein Schwartz
- Post‐Graduation Program in Genetics and Molecular BiologyUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
- Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN)Hospital de Clínicas de Porto AlegrePorto AlegreBrazil
- Medical Genetics ServiceHospital de Clínicas de Porto AlegrePorto AlegreBrazil
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18
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Santos Stange V, Silva dos Reis R, Mariano Garcia de Souza Rodrigues F, Lima Lugon M, Mayumi Vieira C, de Paula F, de Vargas Wolfgramm dos Santos E, Madeira Álvares da Silva-Conforti A, Drumond Louro I, Gusmão L. Stratification among European descent and admixed Brazilian populations of Espírito Santo for 27 Y-STRs. Forensic Sci Int Genet 2019; 41:e20-e22. [DOI: 10.1016/j.fsigen.2019.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 03/06/2019] [Accepted: 03/21/2019] [Indexed: 11/29/2022]
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Hwa HL, Wu MY, Lin CP, Hsieh WH, Yin HI, Lee TT, Lee JCI. A single nucleotide polymorphism panel for individual identification and ancestry assignment in Caucasians and four East and Southeast Asian populations using a machine learning classifier. Forensic Sci Med Pathol 2019; 15:67-74. [PMID: 30649693 DOI: 10.1007/s12024-018-0071-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2018] [Indexed: 11/26/2022]
Abstract
Single nucleotide polymorphism (SNP) profiling is an effective means of individual identification and ancestry inferences in forensic genetics. This study established a SNP panel for the simultaneous individual identification and ancestry assignment of Caucasian and four East and Southeast Asian populations. We analyzed 220 SNPs (125 autosomal, 17 X-chromosomal, 30 Y-chromosomal, and 48 mitochondrial SNPs) of the DNA samples from 563 unrelated individuals of five populations (89 Caucasian, 234 Taiwanese Han, 90 Filipino, 79 Indonesian and 71 Vietnamese) and 18 degraded DNA samples. Informativeness for assignment (In) was used to select ancestry informative SNPs (AISNPs). A machine learning classifier, support vector machine (SVM), was used for ancestry assignment. Of the 220 SNPs, 62 were individual identification SNPs (IISNPs) (51 autosomal and 11 X-chromosomal SNPs) and 191 were AISNPs (100 autosomal, 13 X-chromosomal, 30 Y-chromosomal, and 48 mitochondrial SNPs). The 51 autosomal IISNPs offered cumulative random match probabilities (cRMPs) ranging from 1.56 × 10-21 to 3.16 × 10-22 among these five populations. Using AISNPs with the SVM, the overall accuracy rate of ancestry inference achieved in the testing dataset between Caucasian, Taiwanese Han, and Filipino populations was 88.9%, whereas it was 70.0% between Caucasians and each of the four East and Southeast Asian populations. For the 18 degraded DNA samples with incomplete profiling, the accuracy rate of ancestry assignment was 94.4%. We have developed a 220-SNP panel for simultaneous individual identification and ethnic origin differentiation between Caucasian and the four East and Southeast Asian populations. This SNP panel may assist with DNA analysis of forensic casework.
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Affiliation(s)
- Hsiao-Lin Hwa
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, No. 1, Sec. 1, Jen Ai Rd, Taipei, 100, Taiwan
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, No. 7 Chung Shan S. Rd, Taipei, 100, Taiwan
- Department of Medical Genetics, National Taiwan University Hospital, No. 7 Chung Shan S. Rd, Taipei, 100, Taiwan
| | - Ming-Yih Wu
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, No. 7 Chung Shan S. Rd, Taipei, 100, Taiwan
| | - Chih-Peng Lin
- Yourgene Bioscience, No.376-5 Fuxing Rd., Shulin Dist, New Taipei City, 238, Taiwan
| | - Wei Hsin Hsieh
- Yourgene Bioscience, No.376-5 Fuxing Rd., Shulin Dist, New Taipei City, 238, Taiwan
| | - Hsiang-I Yin
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, No. 1, Sec. 1, Jen Ai Rd, Taipei, 100, Taiwan
| | - Tsui-Ting Lee
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, No. 1, Sec. 1, Jen Ai Rd, Taipei, 100, Taiwan
| | - James Chun-I Lee
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, No. 1, Sec. 1, Jen Ai Rd, Taipei, 100, Taiwan.
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Alonso Morales LA, Casas-Vargas A, Rojas Castro M, Resque R, Ribeiro-dos-Santos ÂK, Santos S, Gusmão L, Usaquén W. Paternal portrait of populations of the middle Magdalena River region (Tolima and Huila, Colombia): New insights on the peopling of Central America and northernmost South America. PLoS One 2018; 13:e0207130. [PMID: 30439976 PMCID: PMC6237345 DOI: 10.1371/journal.pone.0207130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/25/2018] [Indexed: 11/18/2022] Open
Abstract
The valley of the Magdalena River is one of the main population pathways in Colombia. The gene pool and spatial configuration of human groups in this territory have been outlined throughout three historical stages: the Native pre-Hispanic world, Spanish colonization, and XIX century migrations. This research was designed with the goal of characterizing the diversity and distribution pattern of Y-chromosome lineages that are currently present in the Tolima and Huila departments (middle Magdalena River region). Historic cartography was used to identify the main geographic sites where the paternal lineages belonging to this area have gathered. Twelve municipalities were chosen, and a survey that included genealogical information was administered. Samples collected from 83 male volunteers were analyzed for 48 Y-SNPs and 17 Y-STRs. The results showed a highly diverse region characterized by the presence of 16 sublineages within the major clades R, Q, J, G, T and E and revealed that 93% (n = 77) of haplotypes were different. Among these haplogroups, European-specific R1b-M269 lineages were the most representative (57.83%), with six different subhaplogroups and 43 unique haplotypes. Native American paternal ancestry was also detected based on the presence of the Q1a2-M3*(xM19, M194, M199) and Q1a2-M346*(xM3) lineages. Interestingly, all Q1a2-M346*(xM3) samples (n = 7, with five different haplotypes) carried allele six at the DYS391 locus. This allele has a worldwide frequency of 0.169% and was recently associated with a new Native subhaplogroup. An in-depth phylogenetic analysis of these samples suggests the Tolima and Huila region to be the principal area in all Central and South America where this particular Native lineage is found. This lineage has been present in the region for at least 1,809 (+/- 0,5345) years.
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Affiliation(s)
- Luz Angela Alonso Morales
- Populations Genetics and Identification Group, Institute of Genetics, Universidad Nacional de Colombia, Bogotá, Colombia
- * E-mail: (LAAM); (WU)
| | - Andrea Casas-Vargas
- Populations Genetics and Identification Group, Institute of Genetics, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Madelyn Rojas Castro
- Populations Genetics and Identification Group, Institute of Genetics, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Rafael Resque
- Laboratório de Toxicologia e Química Farmacêutica, Departamento de Ciências da Saúde e Biológicas, Universidade Federal do Amapá, Macapá, Brazil
| | - Ândrea Kelly Ribeiro-dos-Santos
- Human and Medical Genetics Laboratory, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, state of Pará (PA), Brazil
| | - Sidney Santos
- Human and Medical Genetics Laboratory, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, state of Pará (PA), Brazil
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), Institute of Biology, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - William Usaquén
- Populations Genetics and Identification Group, Institute of Genetics, Universidad Nacional de Colombia, Bogotá, Colombia
- * E-mail: (LAAM); (WU)
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Genetic Association with Subgingival Bacterial Colonization in Chronic Periodontitis. Genes (Basel) 2018; 9:genes9060271. [PMID: 29882907 PMCID: PMC6027454 DOI: 10.3390/genes9060271] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 12/27/2022] Open
Abstract
Chronic periodontitis is the most prevalent form of inflammatory destructive bone disease and has been affecting humans since antiquity. Evidence suggest that genetic factors can highly influence periodontitis risk, modulating disease elements such as the susceptibility to microbial colonization and the nature of subsequent host-microbe interaction. Several single-nucleotide polymorphisms (SNPs) have been associated with the occurrence of periodontitis, but the full range of genetic influence in periodontitis outcomes remains to be determined. In this context, this study comprises an analysis of possible correlation between periodontitis-related genetic variants with changes in the subgingival microbiological pattern performed in a Brazilian population (n = 167, comprising 76 chronic periodontitis patients and 91 healthy subjects). For the genetic characterization, 19 candidate SNPs were selected based on the top hits of previous large genome wide association studies (GWAS), while the subgingival microbiota was characterized for the presence and relative quantity of 40 bacterial species by DNA-DNA checkerboard. The case/control association test did not demonstrate a significant effect of the target SNPs with the disease phenotype. The polymorphism rs2521634 proved significantly associated with Tannerella forsythia, Actinomyces gerencseriae, Fusobacterium periodonticum, and Prevotella nigrescens; rs10010758 and rs6667202 were associated with increased counts of Porphyromonas gingivalis; and rs10043775 proved significantly associated with decreased counts of Prevotella intermedia. In conclusion, we present strong evidence supporting a direct connection between the host’s genetic profile, specifically rs2521634, rs10010758, rs6667202, and rs10043775 polymorphisms, and the occurrence of chronic periodontitis-associated bacteria.
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Poloni S, Sperb-Ludwig F, Borsatto T, Weber Hoss G, Doriqui MJR, Embiruçu EK, Boa-Sorte N, Marques C, Kim CA, Fischinger Moura de Souza C, Rocha H, Ribeiro M, Steiner CE, Moreno CA, Bernardi P, Valadares E, Artigalas O, Carvalho G, Wanderley HYC, Kugele J, Walter M, Gallego-Villar L, Blom HJ, Schwartz IVD. CBS mutations are good predictors for B6-responsiveness: A study based on the analysis of 35 Brazilian Classical Homocystinuria patients. Mol Genet Genomic Med 2018; 6:160-170. [PMID: 29352562 PMCID: PMC5902399 DOI: 10.1002/mgg3.342] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/13/2017] [Accepted: 09/22/2017] [Indexed: 11/10/2022] Open
Abstract
Background Classical homocystinuria (HCU) is a monogenic disease caused by the deficient activity of cystathionine β‐synthase (CβS). The objective of this study was to identify the CBS mutations in Brazilian patients with HCU. Methods gDNA samples were obtained for 35 patients (30 families) with biochemically confirmed diagnosis of HCU. All exons and exon‐intron boundaries of CBS gene were sequenced. Gene expression analysis by qRT‐PCR was performed in six patients. Novel missense point mutations were expressed in E. coli by site‐directed mutagenesis. Results Parental consanguinity was reported in 16 families, and pyridoxine responsiveness in five (15%) patients. Among individuals from the same family, all presented the same phenotype. Both pathogenic mutations were identified in 29/30 patients. Twenty‐one different mutations were detected in nine exons and three introns; being six common mutations. Most prevalent were p.Ile278Thr (18.2%), p.Trp323Ter (11.3%), p.Thr191Met (11.3%), and c.828+1G>A (11.3%). Eight novel mutations were found [c.2T>C, c.209+1delG, c.284T>C, c.329A>T, c.444delG, c.864_868delGAG c.989_991delAGG, and c.1223+5G>T]. Enzyme activity in E. coli‐expressed mutations was 1.5% for c.329A>T and 17.5% for c.284T>C. qRT‐PCR analysis revealed reduced gene expression in all evaluated genotypes: [c.209+1delG; c.572C>T]; [c.2T>C; c.828+1G>A]; [c.828+1G>A; c.1126G>A]; [c.833T>C; c.989_991delAGG]; [c.1058C>T; c.146C>T]; and [c.444delG; c.444delG]. The expected phenotype according to the genotype (pyridoxine responsiveness) matched in all cases. Conclusions Most patients studied were pyridoxine nonresponsive and presented early manifestations, suggesting severe phenotypes. Many private mutations were observed, but the four most prevalent mutations together accounted for over 50% of mutated alleles. A good genotype–phenotype relationship was observed within families and for the four most common mutations.
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Affiliation(s)
- Soraia Poloni
- Post-Graduation Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Fernanda Sperb-Ludwig
- Post-Graduation Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Taciane Borsatto
- Post-Graduation Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Giovana Weber Hoss
- Post-Graduation Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | - Emília K Embiruçu
- Complexo Hospitalar Professor Edgard Santos, Universidade do Estado da Bahia, Salvador, Brazil.,Universidade do Estado da Bahia, Salvador, Brazil
| | - Ney Boa-Sorte
- Complexo Hospitalar Professor Edgard Santos, Universidade do Estado da Bahia, Salvador, Brazil.,Universidade do Estado da Bahia, Salvador, Brazil
| | - Charles Marques
- Hospital das Clínicas de Ribeirão Preto, Ribeirão Preto, Brazil
| | - Chong A Kim
- Universidade de São Paulo, São Paulo, Brazil
| | | | - Helio Rocha
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcia Ribeiro
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | - Osvaldo Artigalas
- Children's Hospital, Grupo Hospitalar Conceição, Porto Alegre, Brazil.,Genetics Unit, Hospital Materno-Infantil Presidente Vargas, Porto Alegre, Brazil
| | | | - Hector Y C Wanderley
- Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória, Vitória, Brazil
| | - Johanna Kugele
- Laboratory for Clinical Biochemistry and Metabolism, University Medical Center, Freiburg, Germany
| | - Melanie Walter
- Laboratory for Clinical Biochemistry and Metabolism, University Medical Center, Freiburg, Germany
| | - Lorena Gallego-Villar
- Laboratory for Clinical Biochemistry and Metabolism, University Medical Center, Freiburg, Germany
| | - Henk J Blom
- Laboratory for Clinical Biochemistry and Metabolism, University Medical Center, Freiburg, Germany
| | - Ida Vanessa D Schwartz
- Post-Graduation Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Basic Research and Advanced Investigations in Neurosciences (BRAIN), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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500 years later: Understanding the genetic ancestry of the southeast region, brazil. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2017. [DOI: 10.1016/j.fsigss.2017.09.174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Genetic characterization of four Brazilian states with 25 Yfiler®Plus markers. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2017. [DOI: 10.1016/j.fsigss.2017.09.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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CCR5Δ32 (rs333) polymorphism is associated with decreased risk of chronic and aggressive periodontitis: A case-control analysis based in disease resistance and susceptibility phenotypes. Cytokine 2017; 103:142-149. [PMID: 28969941 DOI: 10.1016/j.cyto.2017.09.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/14/2017] [Accepted: 09/21/2017] [Indexed: 02/06/2023]
Abstract
Chronic and aggressive periodontitis are infectious diseases characterized by the irreversible destruction of periodontal tissues, which is mediated by the host inflammatory immune response triggered by periodontal infection. The chemokine receptor CCR5 play an important role in disease pathogenesis, contributing to pro-inflammatory response and osteoclastogenesis. CCR5Δ32 (rs333) is a loss-of-function mutation in the CCR5 gene, which can potentially modulate the host response and, consequently periodontitis outcome. Thus, we investigated the effect of the CCR5Δ32 mutation over the risk to suffer periodontitis in a cohort of Brazilian patients (total N=699), representative of disease susceptibility (chronic periodontitis, N=197; and aggressive periodontitis, N=91) or resistance (chronic gingivitis, N=193) phenotypes, and healthy subjects (N=218). Additionally, we assayed the influence of CCR5Δ32 in the expression of the biomarkers TNFα, IL-1β, IL-10, IL-6, IFN-γ and T-bet, and key periodontal pathogens P. gingivalis, T. forsythia, and T. denticola. In the association analysis of resistant versus susceptible subjects, CCR5Δ32 mutant allele-carriers proved significantly protected against chronic (OR 0.49; 95% CI 0.29-0.83; p-value 0.01) and aggressive (OR 0.46; 95% CI 0.22-0.94; p-value 0.03) periodontitis. Further, heterozygous subjects exhibited significantly decreased expression of TNFα in periodontal tissues, pointing to a functional effect of the mutation in periodontal tissues during the progression of the disease. Conversely, no significant changes were observed in the presence or quantity of the periodontal pathogens P. gingivalis, T. forsythia, and T. denticola in the subgingival biofilm that could be attributable to the mutant genotype.
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Vieira TC, Duarte Gigonzac MA, Goulart Rodovalho R, Morais Cavalcanti L, Bernardes Minasi L, Melo Rodrigues F, da Cruz AD. Mutation rates in 21 autosomal short tandem repeat loci in a population from Goiás, Brazil. Electrophoresis 2017; 38:2791-2794. [DOI: 10.1002/elps.201700192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/20/2017] [Accepted: 07/29/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Thaís Cidália Vieira
- LaGene-Laboratory of Human Cytogenetics and Molecular Genetics; Secretary of State for Health of Goiás (LACEN/SESGO); Goiânia GO Brazil
- State University of Goiás (UEG); Goiânia GO Brazil
- Postgraduate Program in Genetics (MGene)/Replicon Research Center; Pontifical Catholic University of Goiás (PUC-GO); Goiânia GO Brazil
| | - Marc Alexandre Duarte Gigonzac
- LaGene-Laboratory of Human Cytogenetics and Molecular Genetics; Secretary of State for Health of Goiás (LACEN/SESGO); Goiânia GO Brazil
- State University of Goiás (UEG); Goiânia GO Brazil
- Postgraduate Program in Genetics (MGene)/Replicon Research Center; Pontifical Catholic University of Goiás (PUC-GO); Goiânia GO Brazil
| | | | | | - Lysa Bernardes Minasi
- Postgraduate Program in Genetics (MGene)/Replicon Research Center; Pontifical Catholic University of Goiás (PUC-GO); Goiânia GO Brazil
| | - Flávia Melo Rodrigues
- State University of Goiás (UEG); Goiânia GO Brazil
- Postgraduate Program in Genetics (MGene)/Replicon Research Center; Pontifical Catholic University of Goiás (PUC-GO); Goiânia GO Brazil
| | - Aparecido Divino da Cruz
- LaGene-Laboratory of Human Cytogenetics and Molecular Genetics; Secretary of State for Health of Goiás (LACEN/SESGO); Goiânia GO Brazil
- Postgraduate Program in Genetics (MGene)/Replicon Research Center; Pontifical Catholic University of Goiás (PUC-GO); Goiânia GO Brazil
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Schaan AP, Costa L, Santos D, Modesto A, Amador M, Lopes C, Rabenhorst SH, Montenegro R, Souza BDA, Lopes T, Yoshioka FK, Pinto G, Silbiger V, Ribeiro-dos-Santos Â. mtDNA structure: the women who formed the Brazilian Northeast. BMC Evol Biol 2017; 17:185. [PMID: 28793858 PMCID: PMC5549335 DOI: 10.1186/s12862-017-1027-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/26/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The distribution of mitochondrial DNA (mtDNA) lineages in Brazil is heterogeneous due to different regional colonization dynamics. Northeastern Brazil, although being an important region in terms of human imigration and ethnic admixture, has little information regarding its population mtDNA composition. Here, we determine which mitochondrial lineages contributed to the formation of the Northeastern Brazilian population. Our sample consisted of 767 individuals distributed as follows i) 550 individuals from eight Northeastern states (Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe, and Bahia) which were sequenced for mtDNA hypervariable segments I, II, and III; ii) 217 individuals from Alagoas and Pernambuco (previously published data). Data analysis was performed through sequence alignment and Haplogrep 2.0 haplogroup assignment tools. Furthermore, maternal ancestry distribution was contextualized and, when possible, related to historical events to better understand the biological interactions and population dynamics that occurred in this region since the beginning of colonization. RESULTS Unexpectedly, Amerindian mitochondrial ancestry was the highest in the Northeastern region overall, followed by African, European and non-Amerindian Asian, unlike previous results for this region. Alagoas and Pernambuco states, however, showed a larger African mtDNA frequency. The Northeastern region showed an intraregional heterogeneous distribution regarding ancestral groups, in which states/mesoregions located to the north had a prevalent Amerindian ancestral frequency and those to the south had predominance of African ancestry. Moreover, results showed great diversity of European haplogroups and the presence of non-Amerindian Asian haplogroups. CONCLUSIONS Our findings are in disagreement with previous investigations that suggest African mitochondrial ancestry is the most prevalent in the Brazilian Northeast. The predominance of Amerindian lineages exemplifies the importance of indigenous women in the formation of the population, despite intense African slave entry and conflicts with European settlers. The variable distribution of ancestral groups observed in the Northeast is in accordance with historical records showing the similarities with colonization dynamics occurred in the Amazon region and the Brazilian Southeast. Moreover, the variety of European haplogroups suggests multiple origins of founding groups, specially those found in Western European populations.
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Affiliation(s)
- Ana Paula Schaan
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
| | - Lorenna Costa
- Clinical and Toxicological Analyses Department, Federal University of Rio Grande do Norte, Natal, RN 59300-000 Brazil
| | - Diego Santos
- Clinical and Toxicological Analyses Department, Federal University of Rio Grande do Norte, Natal, RN 59300-000 Brazil
| | - Antonio Modesto
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
| | - Marcos Amador
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
| | - Camile Lopes
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
| | - Sílvia Helena Rabenhorst
- Pathology and Legal Medicine Department, Federal University of Ceará, Fortaleza, CE 60020-181 Brazil
| | - Raquel Montenegro
- Center of Research and Drug Development, Federal University of Ceará, Fortaleza, CE 60430-270 Brazil
| | - Bruno D. A. Souza
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
| | - Thayson Lopes
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI 64202-020 Brazil
| | - France Keiko Yoshioka
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI 64202-020 Brazil
| | - Giovanny Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, PI 64202-020 Brazil
| | - Vivian Silbiger
- Clinical and Toxicological Analyses Department, Federal University of Rio Grande do Norte, Natal, RN 59300-000 Brazil
| | - Ândrea Ribeiro-dos-Santos
- Human and Medical Genetics Laboratory, Federal University of Pará, Av. Augusto Corrêa, 01 – Cidade Universitária Prof. José Silveira Netto – Guamá, Belém, PA 66075-110 Brazil
- Center of Oncological Research, Federal University of Pará, Belém, PA 66073-005 Brazil
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Genetic diversity of human papillomavirus types 35, 45 and 58 in cervical cancer in Brazil. Arch Virol 2017; 162:2855-2860. [PMID: 28597068 DOI: 10.1007/s00705-017-3439-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 05/31/2017] [Indexed: 12/26/2022]
Abstract
In Brazil, most studies of intra-type variants of human papillomavirus (HPV) have focused on HPV16 and HPV18, but other high-risk HPV types have not been studied. Here, we report the prevalence of lineages and variants of HPV35, HPV45 and HPV58 in cervical cancers from the Amazonian and Southeast Brazilian regions. The most frequent sublineages were A1 for HPV35, B2 for HPV45, and A2 for HPV58. The Southeast region had a higher frequency of the B2 sublineage of HPV45, and for HPV35, the genetic and nucleotide sequence diversity were higher in the Southeast region, suggesting that regional factors are influencing the diversity and lineage prevalence.
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