The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease

Autores
Dalmasso, Maria Carolina; de Rojas, Itziar; Olivar, Natividad; Muchnik, Carolina; Angel, Bárbara; Gloger, Sergio; Sanchez Abalos, Mariana Soledad; Chacón, María Victoria; Aránguiz, Rafael; Orellana, Paulina; Cuesta, Carolina; Galeano, Pablo; Campanelli, Lorenzo; Novack, Gisela Vanina; Martinez, Luis Eduardo; Medel, Nancy Ruth; Lisso, Julieta; Sevillano, Zulma Haidée; Irureta, Nicolás; Castaño, Eduardo Miguel; Montrreal, Laura; Thoenes, Michaela; Hanses, Claudia; Heilmann-Heimbach, Stefanie; Fuentes, Patricio; Kochen, Silvia; Brusco, Luis Ignacio; Ruiz, Agustín; Morelli, Laura; Achitte, Eduardo Alfredo
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
INTRODUCTION Genome-wide association studies (GWAS) are fundamental for identifying loci associated with diseases. However, they require replication in other ethnicities. METHODS We performed GWAS on sporadic Alzheimer's disease (AD) including 539 patients and 854 controls from Argentina and Chile. We combined our results with those from the European Alzheimer and Dementia Biobank (EADB) in a meta-analysis and tested their genetic risk score (GRS) performance in this admixed population. RESULTS We detected apolipoprotein E ε4 as the single genome-wide significant signal (odds ratio = 2.93 [2.37–3.63], P = 2.6 × 10−23). The meta-analysis with EADB summary statistics revealed four new loci reaching GWAS significance. Functional annotations of these loci implicated endosome/lysosomal function. Finally, the AD-GRS presented a similar performance in these populations, despite the score diminished when the Native American ancestry rose. DISCUSSION We report the first GWAS on AD in a population from South America. It shows shared genetics modulating AD risk between the European and these admixed populations. Highlights This is the first genome-wide association study on Alzheimer's disease (AD) in a population sample from Argentina and Chile. Trans-ethnic meta-analysis reveals four new loci involving lysosomal function in AD. This is the first independent replication for TREM2L, IGH-gene-cluster, and ADAM17 loci. A genetic risk score (GRS) developed in Europeans performed well in this population. The higher the Native American ancestry the lower the GRS values.
Fil: Dalmasso, Maria Carolina. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Rojas, Itziar. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; España
Fil: Olivar, Natividad. Universidad de Buenos Aires; Argentina
Fil: Muchnik, Carolina. Universidad de Buenos Aires; Argentina
Fil: Angel, Bárbara. Universidad de Buenos Aires; Argentina
Fil: Gloger, Sergio. Universidad de Chile; Chile
Fil: Sanchez Abalos, Mariana Soledad. Interuniversity Center For Healthy Aging; Chile
Fil: Chacón, María Victoria. Centro Internacional de Estudios Clinicos; Chile
Fil: Aránguiz, Rafael. Universidad de Chile; Chile
Fil: Orellana, Paulina. Hospital Regional de Ushuaia; Argentina
Fil: Cuesta, Carolina. Centro Internacional de Estudios Clinicos; Chile
Fil: Galeano, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Campanelli, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Novack, Gisela Vanina. Universidad Adolfo Ibañez; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martinez, Luis Eduardo. Hospital Interzonal General de Agudos-Eva Perón; Argentina
Fil: Medel, Nancy Ruth. Hospital Regional de Agudos Eva Perón (formerly Castex); Argentina
Fil: Lisso, Julieta. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Sevillano, Zulma Haidée. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Irureta, Nicolás. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Castaño, Eduardo Miguel. Hospital Regional de Agudos Eva Perón (formerly Castex); Argentina
Fil: Montrreal, Laura. Hospital El Cruce; Argentina
Fil: Thoenes, Michaela. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; Argentina
Fil: Hanses, Claudia. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; Argentina
Fil: Heilmann-Heimbach, Stefanie. Hospital El Cruce; Argentina
Fil: Fuentes, Patricio. Universidad de Chile; Chile
Fil: Kochen, Silvia. Hospital El Cruce; Argentina. Universidad Nacional Arturo Jauretche; Argentina
Fil: Brusco, Luis Ignacio. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ruiz, Agustín. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; España
Fil: Morelli, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Achitte, Eduardo Alfredo. University of Cologne; Alemania. University of Bonn Medical Center; Alemania
Materia
ADMIXTURE
GENETIC RISK SCORE
GENETICS
GENOME-WIDE ASSOCIATION STUDY
HISPANIC
LATIN AMERICA
NATIVE-AMERICAN ANCESTRY
SOUTH AMERICA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/252883

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oai_identifier_str oai:ri.conicet.gov.ar:11336/252883
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's diseaseDalmasso, Maria Carolinade Rojas, ItziarOlivar, NatividadMuchnik, CarolinaAngel, BárbaraGloger, SergioSanchez Abalos, Mariana SoledadChacón, María VictoriaAránguiz, RafaelOrellana, PaulinaCuesta, CarolinaGaleano, PabloCampanelli, LorenzoNovack, Gisela VaninaMartinez, Luis EduardoMedel, Nancy RuthLisso, JulietaSevillano, Zulma HaidéeIrureta, NicolásCastaño, Eduardo MiguelMontrreal, LauraThoenes, MichaelaHanses, ClaudiaHeilmann-Heimbach, StefanieFuentes, PatricioKochen, SilviaBrusco, Luis IgnacioRuiz, AgustínMorelli, LauraAchitte, Eduardo AlfredoADMIXTUREGENETIC RISK SCOREGENETICSGENOME-WIDE ASSOCIATION STUDYHISPANICLATIN AMERICANATIVE-AMERICAN ANCESTRYSOUTH AMERICAhttps://purl.org/becyt/ford/3.4https://purl.org/becyt/ford/3INTRODUCTION Genome-wide association studies (GWAS) are fundamental for identifying loci associated with diseases. However, they require replication in other ethnicities. METHODS We performed GWAS on sporadic Alzheimer's disease (AD) including 539 patients and 854 controls from Argentina and Chile. We combined our results with those from the European Alzheimer and Dementia Biobank (EADB) in a meta-analysis and tested their genetic risk score (GRS) performance in this admixed population. RESULTS We detected apolipoprotein E ε4 as the single genome-wide significant signal (odds ratio = 2.93 [2.37–3.63], P = 2.6 × 10−23). The meta-analysis with EADB summary statistics revealed four new loci reaching GWAS significance. Functional annotations of these loci implicated endosome/lysosomal function. Finally, the AD-GRS presented a similar performance in these populations, despite the score diminished when the Native American ancestry rose. DISCUSSION We report the first GWAS on AD in a population from South America. It shows shared genetics modulating AD risk between the European and these admixed populations. Highlights This is the first genome-wide association study on Alzheimer's disease (AD) in a population sample from Argentina and Chile. Trans-ethnic meta-analysis reveals four new loci involving lysosomal function in AD. This is the first independent replication for TREM2L, IGH-gene-cluster, and ADAM17 loci. A genetic risk score (GRS) developed in Europeans performed well in this population. The higher the Native American ancestry the lower the GRS values.Fil: Dalmasso, Maria Carolina. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de Rojas, Itziar. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; EspañaFil: Olivar, Natividad. Universidad de Buenos Aires; ArgentinaFil: Muchnik, Carolina. Universidad de Buenos Aires; ArgentinaFil: Angel, Bárbara. Universidad de Buenos Aires; ArgentinaFil: Gloger, Sergio. Universidad de Chile; ChileFil: Sanchez Abalos, Mariana Soledad. Interuniversity Center For Healthy Aging; ChileFil: Chacón, María Victoria. Centro Internacional de Estudios Clinicos; ChileFil: Aránguiz, Rafael. Universidad de Chile; ChileFil: Orellana, Paulina. Hospital Regional de Ushuaia; ArgentinaFil: Cuesta, Carolina. Centro Internacional de Estudios Clinicos; ChileFil: Galeano, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Campanelli, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Novack, Gisela Vanina. Universidad Adolfo Ibañez; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martinez, Luis Eduardo. Hospital Interzonal General de Agudos-Eva Perón; ArgentinaFil: Medel, Nancy Ruth. Hospital Regional de Agudos Eva Perón (formerly Castex); ArgentinaFil: Lisso, Julieta. Fundacion Instituto Leloir Antigua Fundacion Campomar; ArgentinaFil: Sevillano, Zulma Haidée. Fundacion Instituto Leloir Antigua Fundacion Campomar; ArgentinaFil: Irureta, Nicolás. Fundacion Instituto Leloir Antigua Fundacion Campomar; ArgentinaFil: Castaño, Eduardo Miguel. Hospital Regional de Agudos Eva Perón (formerly Castex); ArgentinaFil: Montrreal, Laura. Hospital El Cruce; ArgentinaFil: Thoenes, Michaela. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; ArgentinaFil: Hanses, Claudia. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; ArgentinaFil: Heilmann-Heimbach, Stefanie. Hospital El Cruce; ArgentinaFil: Fuentes, Patricio. Universidad de Chile; ChileFil: Kochen, Silvia. Hospital El Cruce; Argentina. Universidad Nacional Arturo Jauretche; ArgentinaFil: Brusco, Luis Ignacio. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ruiz, Agustín. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; EspañaFil: Morelli, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Achitte, Eduardo Alfredo. University of Cologne; Alemania. University of Bonn Medical Center; AlemaniaElsevier Science Inc.2023-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/252883Dalmasso, Maria Carolina; de Rojas, Itziar; Olivar, Natividad; Muchnik, Carolina; Angel, Bárbara; et al.; The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease; Elsevier Science Inc.; Alzheimers & Dementia; 20; 2; 11-2023; 1298-13081552-5260CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/alz.13522info:eu-repo/semantics/altIdentifier/url/https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/alz.13522info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:43Zoai:ri.conicet.gov.ar:11336/252883instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:39:43.665CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
title The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
spellingShingle The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
Dalmasso, Maria Carolina
ADMIXTURE
GENETIC RISK SCORE
GENETICS
GENOME-WIDE ASSOCIATION STUDY
HISPANIC
LATIN AMERICA
NATIVE-AMERICAN ANCESTRY
SOUTH AMERICA
title_short The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
title_full The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
title_fullStr The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
title_full_unstemmed The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
title_sort The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease
dc.creator.none.fl_str_mv Dalmasso, Maria Carolina
de Rojas, Itziar
Olivar, Natividad
Muchnik, Carolina
Angel, Bárbara
Gloger, Sergio
Sanchez Abalos, Mariana Soledad
Chacón, María Victoria
Aránguiz, Rafael
Orellana, Paulina
Cuesta, Carolina
Galeano, Pablo
Campanelli, Lorenzo
Novack, Gisela Vanina
Martinez, Luis Eduardo
Medel, Nancy Ruth
Lisso, Julieta
Sevillano, Zulma Haidée
Irureta, Nicolás
Castaño, Eduardo Miguel
Montrreal, Laura
Thoenes, Michaela
Hanses, Claudia
Heilmann-Heimbach, Stefanie
Fuentes, Patricio
Kochen, Silvia
Brusco, Luis Ignacio
Ruiz, Agustín
Morelli, Laura
Achitte, Eduardo Alfredo
author Dalmasso, Maria Carolina
author_facet Dalmasso, Maria Carolina
de Rojas, Itziar
Olivar, Natividad
Muchnik, Carolina
Angel, Bárbara
Gloger, Sergio
Sanchez Abalos, Mariana Soledad
Chacón, María Victoria
Aránguiz, Rafael
Orellana, Paulina
Cuesta, Carolina
Galeano, Pablo
Campanelli, Lorenzo
Novack, Gisela Vanina
Martinez, Luis Eduardo
Medel, Nancy Ruth
Lisso, Julieta
Sevillano, Zulma Haidée
Irureta, Nicolás
Castaño, Eduardo Miguel
Montrreal, Laura
Thoenes, Michaela
Hanses, Claudia
Heilmann-Heimbach, Stefanie
Fuentes, Patricio
Kochen, Silvia
Brusco, Luis Ignacio
Ruiz, Agustín
Morelli, Laura
Achitte, Eduardo Alfredo
author_role author
author2 de Rojas, Itziar
Olivar, Natividad
Muchnik, Carolina
Angel, Bárbara
Gloger, Sergio
Sanchez Abalos, Mariana Soledad
Chacón, María Victoria
Aránguiz, Rafael
Orellana, Paulina
Cuesta, Carolina
Galeano, Pablo
Campanelli, Lorenzo
Novack, Gisela Vanina
Martinez, Luis Eduardo
Medel, Nancy Ruth
Lisso, Julieta
Sevillano, Zulma Haidée
Irureta, Nicolás
Castaño, Eduardo Miguel
Montrreal, Laura
Thoenes, Michaela
Hanses, Claudia
Heilmann-Heimbach, Stefanie
Fuentes, Patricio
Kochen, Silvia
Brusco, Luis Ignacio
Ruiz, Agustín
Morelli, Laura
Achitte, Eduardo Alfredo
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ADMIXTURE
GENETIC RISK SCORE
GENETICS
GENOME-WIDE ASSOCIATION STUDY
HISPANIC
LATIN AMERICA
NATIVE-AMERICAN ANCESTRY
SOUTH AMERICA
topic ADMIXTURE
GENETIC RISK SCORE
GENETICS
GENOME-WIDE ASSOCIATION STUDY
HISPANIC
LATIN AMERICA
NATIVE-AMERICAN ANCESTRY
SOUTH AMERICA
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.4
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv INTRODUCTION Genome-wide association studies (GWAS) are fundamental for identifying loci associated with diseases. However, they require replication in other ethnicities. METHODS We performed GWAS on sporadic Alzheimer's disease (AD) including 539 patients and 854 controls from Argentina and Chile. We combined our results with those from the European Alzheimer and Dementia Biobank (EADB) in a meta-analysis and tested their genetic risk score (GRS) performance in this admixed population. RESULTS We detected apolipoprotein E ε4 as the single genome-wide significant signal (odds ratio = 2.93 [2.37–3.63], P = 2.6 × 10−23). The meta-analysis with EADB summary statistics revealed four new loci reaching GWAS significance. Functional annotations of these loci implicated endosome/lysosomal function. Finally, the AD-GRS presented a similar performance in these populations, despite the score diminished when the Native American ancestry rose. DISCUSSION We report the first GWAS on AD in a population from South America. It shows shared genetics modulating AD risk between the European and these admixed populations. Highlights This is the first genome-wide association study on Alzheimer's disease (AD) in a population sample from Argentina and Chile. Trans-ethnic meta-analysis reveals four new loci involving lysosomal function in AD. This is the first independent replication for TREM2L, IGH-gene-cluster, and ADAM17 loci. A genetic risk score (GRS) developed in Europeans performed well in this population. The higher the Native American ancestry the lower the GRS values.
Fil: Dalmasso, Maria Carolina. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Rojas, Itziar. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; España
Fil: Olivar, Natividad. Universidad de Buenos Aires; Argentina
Fil: Muchnik, Carolina. Universidad de Buenos Aires; Argentina
Fil: Angel, Bárbara. Universidad de Buenos Aires; Argentina
Fil: Gloger, Sergio. Universidad de Chile; Chile
Fil: Sanchez Abalos, Mariana Soledad. Interuniversity Center For Healthy Aging; Chile
Fil: Chacón, María Victoria. Centro Internacional de Estudios Clinicos; Chile
Fil: Aránguiz, Rafael. Universidad de Chile; Chile
Fil: Orellana, Paulina. Hospital Regional de Ushuaia; Argentina
Fil: Cuesta, Carolina. Centro Internacional de Estudios Clinicos; Chile
Fil: Galeano, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Campanelli, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Novack, Gisela Vanina. Universidad Adolfo Ibañez; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martinez, Luis Eduardo. Hospital Interzonal General de Agudos-Eva Perón; Argentina
Fil: Medel, Nancy Ruth. Hospital Regional de Agudos Eva Perón (formerly Castex); Argentina
Fil: Lisso, Julieta. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Sevillano, Zulma Haidée. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Irureta, Nicolás. Fundacion Instituto Leloir Antigua Fundacion Campomar; Argentina
Fil: Castaño, Eduardo Miguel. Hospital Regional de Agudos Eva Perón (formerly Castex); Argentina
Fil: Montrreal, Laura. Hospital El Cruce; Argentina
Fil: Thoenes, Michaela. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; Argentina
Fil: Hanses, Claudia. Studies In Neuroscience And Complex Systems Unit (enys-conicet-hec-unaj). Florencio Varela; Argentina
Fil: Heilmann-Heimbach, Stefanie. Hospital El Cruce; Argentina
Fil: Fuentes, Patricio. Universidad de Chile; Chile
Fil: Kochen, Silvia. Hospital El Cruce; Argentina. Universidad Nacional Arturo Jauretche; Argentina
Fil: Brusco, Luis Ignacio. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ruiz, Agustín. Universitat Internacional de Catalunya; España. Instituto de Salud Carlos III; España
Fil: Morelli, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Achitte, Eduardo Alfredo. University of Cologne; Alemania. University of Bonn Medical Center; Alemania
description INTRODUCTION Genome-wide association studies (GWAS) are fundamental for identifying loci associated with diseases. However, they require replication in other ethnicities. METHODS We performed GWAS on sporadic Alzheimer's disease (AD) including 539 patients and 854 controls from Argentina and Chile. We combined our results with those from the European Alzheimer and Dementia Biobank (EADB) in a meta-analysis and tested their genetic risk score (GRS) performance in this admixed population. RESULTS We detected apolipoprotein E ε4 as the single genome-wide significant signal (odds ratio = 2.93 [2.37–3.63], P = 2.6 × 10−23). The meta-analysis with EADB summary statistics revealed four new loci reaching GWAS significance. Functional annotations of these loci implicated endosome/lysosomal function. Finally, the AD-GRS presented a similar performance in these populations, despite the score diminished when the Native American ancestry rose. DISCUSSION We report the first GWAS on AD in a population from South America. It shows shared genetics modulating AD risk between the European and these admixed populations. Highlights This is the first genome-wide association study on Alzheimer's disease (AD) in a population sample from Argentina and Chile. Trans-ethnic meta-analysis reveals four new loci involving lysosomal function in AD. This is the first independent replication for TREM2L, IGH-gene-cluster, and ADAM17 loci. A genetic risk score (GRS) developed in Europeans performed well in this population. The higher the Native American ancestry the lower the GRS values.
publishDate 2023
dc.date.none.fl_str_mv 2023-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/252883
Dalmasso, Maria Carolina; de Rojas, Itziar; Olivar, Natividad; Muchnik, Carolina; Angel, Bárbara; et al.; The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease; Elsevier Science Inc.; Alzheimers & Dementia; 20; 2; 11-2023; 1298-1308
1552-5260
CONICET Digital
CONICET
url http://hdl.handle.net/11336/252883
identifier_str_mv Dalmasso, Maria Carolina; de Rojas, Itziar; Olivar, Natividad; Muchnik, Carolina; Angel, Bárbara; et al.; The first genome‐wide association study in the Argentinian and Chilean populations identifies shared genetics with Europeans in Alzheimer's disease; Elsevier Science Inc.; Alzheimers & Dementia; 20; 2; 11-2023; 1298-1308
1552-5260
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/alz.13522
info:eu-repo/semantics/altIdentifier/url/https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/alz.13522
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Elsevier Science Inc.
publisher.none.fl_str_mv Elsevier Science Inc.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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