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Winful T, McCormack K, Mueller E, Chen L, Clemente MR, Torres JB. Exploring the legacy of African and Indigenous Caribbean admixture in Puerto Rico. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2023; 182:194-209. [PMID: 37525538 DOI: 10.1002/ajpa.24814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 05/23/2023] [Accepted: 06/23/2023] [Indexed: 08/02/2023]
Abstract
OBJECTIVES From an anthropological genetic perspective, little is known about the ethnogenesis of African descendants in Puerto Rico. Furthermore, historical interactions between Indigenous Caribbean and African descendant peoples that may be reflected in the ancestry of contemporary populations are understudied. Given this dearth of genetic research and the precedence for Afro-Indigenous interactions documented by historical, archeological, and other lines of evidence, we sought to assess the biogeographic origins of African descendant Puerto Ricans and to query the potential for Indigenous ancestry within this community. MATERIALS AND METHODS Saliva samples were collected from 58 self-identified African descendant Puerto Ricans residing in Puerto Rico. We sequenced whole mitochondrial genomes and genotyped Y chromosome haplogroups for each male individual (n = 25). Summary statistics, comparative analyses, and network analysis were used to assess diversity and variation in haplogroup distribution between the sample and comparative populations. RESULTS As indicated by mitochondrial haplogroups, 66% had African, 5% had European, and 29% had Indigenous American matrilines. Along the Y chromosome, 52% had African, 28% had Western European, 16% had Eurasian, and, notably, 4% had Indigenous American patrilines. Both mitochondrial and Y chromosome haplogroup frequencies were significantly different from several comparative populations. DISCUSSION Biogeographic origins are consistent with historical accounts of African, Indigenous American, and European ancestry. However, this first report of Indigenous American paternal ancestry in Puerto Rico suggests distinctive features within African descendant communities on the island. Future studies expanding sampling and incorporating higher resolution genetic markers are necessary to more fully understand African descendant history in Puerto Rico.
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Affiliation(s)
- Taiye Winful
- Department of Anthropology, Genetic Anthropology and Biocultural Studies Laboratory, Vanderbilt University, Nashville, Tennessee, USA
| | - Katie McCormack
- Department of Anthropology, Genetic Anthropology and Biocultural Studies Laboratory, Vanderbilt University, Nashville, Tennessee, USA
| | - Elsa Mueller
- Department of Anthropology, Genetic Anthropology and Biocultural Studies Laboratory, Vanderbilt University, Nashville, Tennessee, USA
| | - Lijuan Chen
- Department of Anthropology, Genetic Anthropology and Biocultural Studies Laboratory, Vanderbilt University, Nashville, Tennessee, USA
| | | | - Jada Benn Torres
- Department of Anthropology, Genetic Anthropology and Biocultural Studies Laboratory, Vanderbilt University, Nashville, Tennessee, USA
- Vanderbilt Genetics Institute, Vanderbilt University, Nashville, Tennessee, USA
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Juárez-Luis J, Canseco-Ocaña M, Cid-Soto MA, Castro-Martínez XH, Martínez-Hernández A, Orozco L, Hernández-Zavala A, Córdova EJ. Single nucleotide variants in microRNA biosynthesis genes in Mexican individuals. Front Genet 2023; 14:1022912. [PMID: 36968598 PMCID: PMC10037310 DOI: 10.3389/fgene.2023.1022912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/02/2023] [Indexed: 03/08/2023] Open
Abstract
Background: MicroRNAs (miRNAs) are important regulators in a variety of biological processes, and their dysregulation is associated with multiple human diseases. Single nucleotide variants (SNVs) in genes involved in the processing of microRNAs may alter miRNA regulation and could present high allele heterogeneity in populations from different ethnic groups. Thus, the aim of this study was to genotype 15 SNVs in eight genes involved in the miRNA processing pathway in Mexican individuals and compare their frequencies across 21 populations from five continental groups.Methods: Genomic DNA was obtained from 399 healthy Mexican individuals. SNVs in AGO2 (rs2293939 and rs4961280), DGCR8 (rs720012), DICER (rs3742330 and rs13078), DROSHA (rs10719 and rs6877842), GEMIN3 (rs197388 and rs197414), GEMIN4 (rs7813, rs2740349, and rs4968104), TNRC6B (rs9611280), and XP05 (rs11077 and rs34324334) were genotyped using TaqMan probes. The minor allele frequency of each SNV was compared to those reported in the 1,000 Genomes database using chi-squared. Sankey plot was created in the SankeyMATIC package to visualize the frequency range of each variant in the different countries analyzed.Results: In Mexican individuals, all 15 SNVs were found in Hardy-Weinberg equilibrium, with frequencies ranging from 0.04 to 0.45. The SNVs rs4961280, rs2740349, rs34324334, and rs720012 in Mexican individuals had the highest minor allele frequencies worldwide, whereas the minor allele frequencies of rs197388, rs10719, rs197414, and rs1107 were among the lowest in Mexican individuals. The variants had high allele heterogeneity among the sub-continental populations, ranging from monomorphic, as was the case for rs9611280 and rs34324334 in African groups, to >0.50, which was the case for variants rs11077 and rs10719 in most of the populations. Importantly, the variants rs197388, rs720012, and rs197414 had FST values > 0.18, indicating a directional selective process. Finally, the SNVs rs13078 and rs10719 significantly correlated with both latitude and longitude.Conclusion: These data indicate the presence of high allelic heterogeneity in the worldwide distribution of the frequency of SNVs located in components of the miRNA processing pathway, which could modify the genetic susceptibility associated with human diseases in populations with different ancestry.
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Affiliation(s)
- Jesús Juárez-Luis
- Section of Research and Postgraduate, Superior School of Medicine, National Institute Polytechnique, Mexico City, Mexico
| | - Moisés Canseco-Ocaña
- Oncogenomics Consortium Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Miguel Angel Cid-Soto
- Oncogenomics Consortium Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Xochitl H. Castro-Martínez
- Genomics of Psychiatric and Neurogenerative diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Angélica Martínez-Hernández
- Immunogenomics and Metabolic diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Lorena Orozco
- Immunogenomics and Metabolic diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Araceli Hernández-Zavala
- Section of Research and Postgraduate, Superior School of Medicine, National Institute Polytechnique, Mexico City, Mexico
| | - Emilio J. Córdova
- Oncogenomics Consortium Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
- *Correspondence: Emilio J. Córdova,
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Fan GY, Song DL, Jin HY, Zheng XK. Gene flow and phylogenetic analyses of paternal lineages in the Yi-Luo valley using Y-STR genetic markers. Ann Hum Biol 2022; 48:627-634. [DOI: 10.1080/03014460.2021.2017480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Guang-Yao Fan
- Forensic Center, College of Medicine, Shaoxing University, Shaoxing, China
| | - Dan-Lu Song
- Ningbo Health Gene Technologies Co. Ltd., Ningbo, China
| | - Hai-Ying Jin
- Ningbo Health Gene Technologies Co. Ltd., Ningbo, China
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Elías-López D, Vargas-Vázquez A, Mehta R, Cruz Bautista I, Del Razo Olvera F, Gómez-Velasco D, Almeda Valdes P, Aguilar-Salinas CA. Natural course of metabolically healthy phenotype and risk of developing Cardiometabolic diseases: a three years follow-up study. BMC Endocr Disord 2021; 21:85. [PMID: 33910543 PMCID: PMC8080399 DOI: 10.1186/s12902-021-00754-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/19/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Whether the metabolically healthy obese (MHO) phenotype is a single, stable or a transitional, fluctuating state is currently unknown. The Mexican-Mestizo population has a genetic predisposition for the development of type 2 diabetes (T2D) and other cardiometabolic complications. Little is known about the natural history of metabolic health in this population. The aim of this study was to analyze the transitions over time among individuals with different degrees of metabolic health and body mass index, and evaluate the incidence of cardiometabolic outcomes according to phenotype. METHODS The study population consisted of a metabolic syndrome cohort with at least 3 years of follow up. Participants were apparently-healthy urban Mexican adults ≥20 years with a body mass index (BMI) ≥20 kg/m2. Metabolically healthy phenotype was defined using the criteria of the National Cholesterol Education Program (NCEP) Adult Treatment Panel III (ATP III) metabolic syndrome criteria and the subjects were stratified into 4 groups according to their BMI and metabolic health. For cardiometabolic outcomes we estimated the incidence of cardiometabolic outcomes and standardized them per 1, 000 person-years of follow-up. Finally, to evaluate the risk for transition and development of cardiometabolic outcomes, we fitted Cox Proportional Hazard regression models. RESULTS Amongst the 5541 subjects, 54.2% were classified as metabolically healthy and 45.8% as unhealthy. The MHO prevalence was 39.3%. Up to a third of the population changed from their initial category to another and the higher transition rate was observed in MHO (42.9%). We also found several novel factors associated to transition to metabolically unhealthy phenotype; socioeconomic status, number of pregnancies, a high carbohydrate intake, history of obesity and consumption of sweetened beverages. Similarly, visceral adipose tissue (VAT) was a main predictor of transition; loss of VAT ≥5% was associated with reversion from metabolically unhealthy to metabolically healthy phenotype (hazard ratio (HR) 1.545, 95%CI 1.266-1.886). Finally, we observed higher incidence rates and risk of incident T2D and hypertension in the metabolically unhealthy obesity (MUHO) and metabolically unhealthy lean (MUHL) phenotypes compared to MHO. CONCLUSIONS Metabolic health is a dynamic and continuous process, at high risk of transition to metabolically unhealthy phenotypes over time. It is imperative to establish effective processes in primary care to prevent such transitions.
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Affiliation(s)
- Daniel Elías-López
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Arsenio Vargas-Vázquez
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
- MD/PhD (PECEM) Program, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Roopa Mehta
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Ivette Cruz Bautista
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
| | - Fabiola Del Razo Olvera
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
| | - Donaji Gómez-Velasco
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
| | - Paloma Almeda Valdes
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Carlos A Aguilar-Salinas
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. CP 14080; Tlalpan, México City, Mexico.
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México.
- Instituto Tecnologico y de Estudios Superiores de Monterrey Tec Salud, México City, México.
- División de Nutrición, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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