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Fricke-Galindo I, LLerena A. Pharmacogenetics and ethnicity: "Dr. José María Cantú" award announcement. Drug Metab Pers Ther 2023:dmdi-2023-0037. [PMID: 37155924 DOI: 10.1515/dmpt-2023-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Affiliation(s)
- Ingrid Fricke-Galindo
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Adrián LLerena
- INUBE Biosanitary University Research Institute, University of Extremadura, Badajoz, Spain
- University of Extremadura Medical School, Badajoz, Spain
- CIBERSAM, Instituto de Salud Carlos III, Madrid, Spain
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Valencia Ayala E, Chevarría Arriaga M, Coelho EB, Sandoval JS, Granara AS. Metabolizer phenotype prediction in different Peruvian ethnic groups through CYP2C9 polymorphisms. Drug Metab Pers Ther 2021; 36:dmdi-2020-0146. [PMID: 33735946 DOI: 10.1515/dmpt-2020-0146] [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: 06/19/2020] [Accepted: 12/21/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The CYP2C9 gene have three common alleles, CYP2C9*1, CYP2C9*2 and CYP2C9*3, associated with different homozygous (*1/*1, *2/*2 and *3/*3) and heterozygous (*1/*2 and *1/*3) genotypes, which in turn are related to extensive (gEM), intermediate (gIM) and poor (gPM) metabolizers. Likewise, the inter-ethnic variability was intimately associated with different drug metabolism. Therefore, the aim of the present study was predict the metabolizer phenotypes in different Peruvian ethnic groups from lowland (<2,500 m) and highland (>2,500 m). METHODS TaqMan genotyping assays were performed in a group of 174 healthy unrelated Peruvian individuals. RESULTS In this study, the allelic comparison between the three eco-regions showed that the CYP2C9*1 was the most common in Andean (96.32%); the *2 was the most frequent in Coast (7.45%, p<0.05). Regarding the *3 was the most common in Amazonian (6.25%, p<0.05). In a corroborative manner, the gEM was the most common in Andean (94.74%), the gIM in Coast (17.02%) and gPM in Amazonian (6.25%) populations. CONCLUSIONS Our study provides a valuable source of information about to metabolizer phenotype drugs in different Peruvian ethnic groups. In this way, it could be established suitable genetic-dosage medicaments for various common diseases in these heterogenetic populations.
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Affiliation(s)
- Edward Valencia Ayala
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación en Infectología e Inmunología-Instituto de Investigación, La Molina, Lima, Peru
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación de Medicina Tradicional y Farmacología-Instituto de Investigación, La Molina, Lima, Peru
| | - Mylenka Chevarría Arriaga
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación de Medicina Tradicional y Farmacología-Instituto de Investigación, La Molina, Lima, Peru
| | - Eduardo Barbosa Coelho
- Departamento de Clínica Médica, Disciplina de Nefrologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirao Preto, Brazil
| | - José Sandoval Sandoval
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación en Genética y Biología Molecular-Instituto de Investigación, La Molina, Lima, Peru
| | - Alberto Salazar Granara
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación de Medicina Tradicional y Farmacología-Instituto de Investigación, La Molina, Lima, Peru
- Facultad de Medicina Humana, Universidad de San Martin de Porres, Centro de Investigación de Medicina de Altura-Instituto de Investigación, La Molina, Lima, Peru
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Fernandes MR, Rodrigues JCG, Maroñas O, Latorre-Pellicer A, Cruz R, Guerreiro JF, Burbano RMR, de Assumpção PP, Ribeiro-Dos-Santos A, Dos Santos SEB, Carracedo A, Dos Santos NPC. Genetic Diversity of Drug-Related Genes in Native Americans of the Brazilian Amazon. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2021; 14:117-133. [PMID: 33519226 PMCID: PMC7837547 DOI: 10.2147/pgpm.s274741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/23/2020] [Indexed: 12/25/2022]
Abstract
Introduction The genetic admixture of the Brazilian population has considerable relevance to the implementation of the principles of pharmacogenomics (PGx), as it may compromise the extrapolation of data obtained in more homogeneous world populations. Purpose This study aims to investigate a panel of 117 polymorphisms in 35 pharmacogenes, which contains label recommendations or clinical evidence by international drug regulatory agencies, in Amazonian Native American populations, and compare the results obtained with continental population data from the 1000 Genomes Project Consortium. Patients and Methods The study population is composed of 109 Native American individuals from three Brazilian Amazon groups. The genotyping of the PGx polymorphisms was performed by allelic discrimination using TaqMan® OpenArray Genotyping with a panel of 120 customized assays on the QuantStudio™ 12K Flex Real-Time PCR System. Results Statistical differences within the Native American populations were observed regarding both genotypes and phenotypes of some genes of the CYP family. The discriminant analysis of principal components (DAPCs) between the NAM group and the continental populations of the 1000 Genomes Project resulted in the clustering of the three Native American populations. Additionally, in general, the NAM group was determined to be closely situated between East Asia, America, and South Asia groups, which enabled us to infer a genetic similarity between these populations. The DAPC analysis further demonstrated that eight polymorphisms and six polymorphisms were more relevant in differentiating the NAM from the continental populations and the NAM populations among themselves, respectively. Conclusion Some investigated polymorphisms show differences among world populations, particularly with populations of European origin, for whom precision medicine protocols are primarily designed. The accumulated knowledge regarding these variations may assist in the design of specific protocols for Native American populations and populations admixed with them.
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Affiliation(s)
- Marianne Rodrigues Fernandes
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém, Pará, Brazil.,Departamento de ensino e pesquisa, Hospital Ophir Loyola, Belém, Pará, Brazil
| | | | - Olalla Maroñas
- Grupo de Medicina Xenómica, Centro Nacional de Genotipado (CEGEN-PRB3), Universidade de Santiago de Compostela, Santiago de Compostela, España
| | - Ana Latorre-Pellicer
- Grupo de Medicina Xenómica, Centro Nacional de Genotipado (CEGEN-PRB3), Universidade de Santiago de Compostela, Santiago de Compostela, España.,Unidad de Genética Clínica y Genómica Funcional, Departamento de Farmacología-Fisiología, Escuela de Medicina, Universidad de Zaragoza, IIS-Aragón, E-50009 Zaragoza, España
| | - Raquel Cruz
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), Grupo de Medicina Genómica, CIMUS, Universidad de Santiago de Compostela, Santiago de Compostela, España
| | - João Farias Guerreiro
- Laboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Rommel Mario Rodriguez Burbano
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém, Pará, Brazil.,Departamento de ensino e pesquisa, Hospital Ophir Loyola, Belém, Pará, Brazil
| | | | - Andrea Ribeiro-Dos-Santos
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém, Pará, Brazil.,Laboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Sidney Emanuel Batista Dos Santos
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém, Pará, Brazil.,Laboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Angel Carracedo
- Grupo de Medicina Xenómica, Centro Nacional de Genotipado (CEGEN-PRB3), Universidade de Santiago de Compostela, Santiago de Compostela, España.,Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), Grupo de Medicina Genómica, CIMUS, Universidad de Santiago de Compostela, Santiago de Compostela, España.,Fundación Pública de Medicina Xenómica, Instituto de Investigación Sanitaria de Santiago de Compostela (FIDIS), Universidade de Santiago de Compostela, Santiago de Compostela, España
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Gonzalez-Covarrubias V, Morales-Franco M, Cruz-Correa OF, Martínez-Hernández A, García-Ortíz H, Barajas-Olmos F, Genis-Mendoza AD, Martínez-Magaña JJ, Nicolini H, Orozco L, Soberón X. Variation in Actionable Pharmacogenetic Markers in Natives and Mestizos From Mexico. Front Pharmacol 2019; 10:1169. [PMID: 31649539 PMCID: PMC6796793 DOI: 10.3389/fphar.2019.01169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/12/2019] [Indexed: 12/12/2022] Open
Abstract
The identification and characterization of pharmacogenetic variants in Latin American populations is still an ongoing endeavor. Here, we investigated SNVs on genes listed by the Pharmacogenomics Knowledge Base in 1284 Mestizos and 94 Natives from Mexico. Five institutional cohorts with NGS data were retrieved from different research projects at INMEGEN, sequencing files were filtered for 55 pharmacogenes present in all cohorts to identify novel and known variation. Bioinformatic tools VEP, PROVEAN, and FATHMM were used to assess, in silico, the functional impact of this variation. Next, we focused on 17 genes with actionable variants that have been clinically implemented. Allele frequencies were compared with major continental groups and differences discussed in the scope of a pharmacogenomic impact. We observed a wide genetic variability for known and novel SNVs, the largest variation was on UGT1A > ACE > COMT > ABCB1 and the lowest on APOE and NAT2. Although with allele frequencies around 1%, novel variation was observed in 16 of 17 PGKB genes. In Natives we identified 59 variants and 58 in Mestizos. Several genes did not show novel variation, on CYP2B6, CYP2D6, and CYP3A4 in Natives; and APOE, UGT1A, and VKORC1 in Mestizos. Similarities in allele frequency, comparing major continental groups for VIP pharmacogenes, hint towards a comparable PGx for drugs metabolized by UGT1A1, DPYD, ABCB1, CBR3, COMT, and TPMT; in contrast to variants on CYP3A5 and CYP2B6 for which significant MAF differences were identified. Our observations offer some discernment into the extent of pharmacogenetic variation registered up-to-date in Mexicans and contribute to quantitatively dissect actionable pharmacogenetic variants in Natives and Mestizos.
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Affiliation(s)
| | | | | | | | - Humberto García-Ortíz
- Immunogenomics and Metabolic Diseases Laboratory, INMEGEN, CDMX, Mexico City, Mexico
| | | | | | | | - Humberto Nicolini
- Genomics of Psychiatric and Neurodegenerative Diseases Laboratory, INMEGEN, Mexico City, Mexico
| | - Lorena Orozco
- Immunogenomics and Metabolic Diseases Laboratory, INMEGEN, CDMX, Mexico City, Mexico
| | - Xavier Soberón
- Pharmacogenomics Laboratory, INMEGEN, CDMX, Mexico City, Mexico
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Castañeda-Hernández G, Sandoval H, Coindreau J, Rodriguez-Davison LF, Pineda C. Barriers towards effective pharmacovigilance systems of biosimilars in rheumatology: A Latin American survey. Pharmacoepidemiol Drug Saf 2019; 28:1035-1044. [PMID: 31148288 PMCID: PMC6771580 DOI: 10.1002/pds.4785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 03/05/2019] [Accepted: 03/14/2019] [Indexed: 01/12/2023]
Abstract
Purpose This review summarises the current status of regulatory guidelines for the approval of biosimilars in Latin America and highlights the main barriers to effective pharmacovigilance in this region. We also report results from a survey of Latin American rheumatologists assessing their understanding of prescribing biosimilars and the pharmacovigilance of these drugs. Methods We reviewed the current guidelines for the regulatory approval of biosimilars and barriers to effective pharmacovigilance in Latin American countries. Rheumatologists attending the II Pan‐American League of Rheumatology Associations PANLAR Review Course (Biosimilars update) in Lima, Peru were asked to complete a short survey to determine their knowledge of biosimilars. Results Many Latin American countries continue to lag behind Europe and the United States in establishing regulatory guidance and effective pharmacovigilance systems for biosimilars. Results from our survey also highlight a lack of awareness regarding the availability of biosimilars, their nomenclature, automatic substitution, and reporting adverse drug reactions because of these drugs. Conclusions The main barriers to effective pharmacovigilance in Latin America are the lack of consensus on the interchangeability of reference biologics and biosimilars, and the need for more suitably trained personnel to carry out effective postmarketing pharmacovigilance of biosimilars. Inconsistencies in biosimilar nomenclature make it difficult to adequately trace drugs and record adverse drug reactions associated with their use, creating a barrier to the global pharmacovigilance of biologics.
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Affiliation(s)
- Gilberto Castañeda-Hernández
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Hugo Sandoval
- Sociomedical Research Unit, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico
| | | | | | - Carlos Pineda
- Division of Musculoskeletal and Rheumatic Diseases, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico
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Cuautle-Rodríguez P, Rodríguez-Rivera N, De Andrés F, Castillo-Nájera F, Llerena A, Molina-Guarneros JA. Frequency of CYP2C9 ( *2, *3 and IVS8-109A>T) allelic variants, and their clinical implications, among Mexican patients with diabetes mellitus type 2 undergoing treatment with glibenclamide and metformin. Biomed Rep 2019; 10:283-295. [PMID: 31086662 PMCID: PMC6489535 DOI: 10.3892/br.2019.1204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 03/15/2019] [Indexed: 12/19/2022] Open
Abstract
The majority of Mexican patients with diabetes mellitus type 2 (DMT2) (67.9-85.0%) are prescribed sulphonylureas (SUs), which are metabolized by cytochrome P450 2C9 (abbreviated as CYP2C9). SUs are a type of oral anti-diabetic compound which inhibit ATP-sensitive potassium channels, thus inducing glucose-independent insulin release by the β-pancreatic cells. The wide variability reported in SU responses has been attributed to the polymorphisms of CYP2C9. The present study aimed to describe CYP2C9 polymorphisms (*2, *3 and IVS8-109T) within a sample of Mexican patients with DMT2, while suggesting the potential clinical implications in terms of glibenclamide response variability. From a sample of 248 patients with DMT2 who initially consented to be studied, those ultimately included in the study were treated with glibenclamide (n=11), glibenclamide combined with metformin (n=112) or metformin (n=76), and were subsequently genotyped using a reverse transcription-quantitative polymerase chain reaction (PCR), end-point allelic discrimination and PCR amplifying enzymatic restriction fragment long polymorphism. Clinical data were gathered through medical record revision. The frequencies revealed were as follows: CYP2C9*1/*1, 87.5%; *1/*2, 6.5%; *1/*3, 5.2%; and CYP2C9, IVS8-109A>T, 16.1%. Glibenclamide significantly reduced the level of pre-prandial glucose (P<0.01) and the percentage of glycated hemoglobin (%HbA1c; P<0.01) for IVS8-109A>T compared with combined glibenclamide and metformin treatment. Concerning the various treatments with respect to the different genotypes, the percentages obtained were as follows: Glibenclamide A/A, HbA1c<6.5=33.3%; glibenclamide + metformin A/A, HbA1c<6.5=24.6%; glibenclamide A/T, HbA1c<6.5=33.3%; glibenclamide + metformin A/T, HbA1c<6.5=25%; glibenclamide T/T, HbA1c<6.5=100%; and glibenclamide + metformin T/T, HbA1c<6.5=12.5%. Altogether, these results revealed that, although genetically customized prescriptions remain a desirable goal to increase the chances of therapeutic success, within the studied population neither allelic variants nor dosages demonstrated a clear association with biomarker levels. A key limitation of the present study was the lack of ability to quantify either the plasma concentrations of SU or their metabolites; therefore, further, precise experimental and observational studies are required.
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Affiliation(s)
- Patricia Cuautle-Rodríguez
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México.,Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Nidia Rodríguez-Rivera
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Fernando De Andrés
- Centro de Investigación Clínica Área de Badajoz, SES Hospital Universitario, Universidad de Extremadura, Badajoz 06071, Spain
| | - Fernando Castillo-Nájera
- Centro de Salud T‑III Portales, Servicios de Salud Gobierno de la Ciudad de México, Ciudad de México 03660, México
| | - Adrián Llerena
- Centro de Investigación Clínica Área de Badajoz, SES Hospital Universitario, Universidad de Extremadura, Badajoz 06071, Spain
| | - Juan Arcadio Molina-Guarneros
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
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Sivadas A, Scaria V. Population-scale genomics-Enabling precision public health. ADVANCES IN GENETICS 2018; 103:119-161. [PMID: 30904093 DOI: 10.1016/bs.adgen.2018.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The current excitement for affordable genomics technologies and national precision medicine initiatives marks a turning point in worldwide healthcare practices. The last decade of global population sequencing efforts has defined the enormous extent of genetic variation in the human population resulting in insights into differential disease burden and response to therapy within and between populations. Population-scale pharmacogenomics helps to provide insights into the choice of optimal therapies and an opportunity to estimate, predict and minimize adverse events. Such an approach can potentially empower countries to formulate national selection and dosing policies for therapeutic agents thereby promoting public health with precision. We review the breadth and depth of worldwide population-scale sequencing efforts and its implications for the implementation of clinical pharmacogenetics toward making precision medicine a reality.
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Affiliation(s)
- Ambily Sivadas
- GN Ramachandran Knowledge Center for Genome Informatics, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Vinod Scaria
- GN Ramachandran Knowledge Center for Genome Informatics, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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Gonzalez-Covarrubias V, Urena-Carrion J, Villegas-Torres B, Cossío-Aranda JE, Trevethan-Cravioto S, Izaguirre-Avila R, Fiscal-López OJ, Soberon X. Pharmacogenetic Variation in Over 100 Genes in Patients Receiving Acenocumarol. Front Pharmacol 2017; 8:863. [PMID: 29218011 PMCID: PMC5703746 DOI: 10.3389/fphar.2017.00863] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/09/2017] [Indexed: 12/18/2022] Open
Abstract
Coumarins are widely prescribed worldwide, and in Mexico acenocumarol is the preferred form. It is well known that despite its efficacy, coumarins show a high variability for dose requirements. We investigated the pharmacogenetic variation of 110 genes in patients receiving acenocumarol using a targeted NGS approach. We report relevant population differentiation for variants on CYP2C8, CYP2C19, CYP4F11, CYP4F2, PROS, and GGCX, VKORC1, CYP2C18, NQO1. A higher proportion of novel-to-known variants for 10 genes was identified on 41 core pharmacogenomics genes related to the PK (29), PD (3), of coumarins, and coagulation proteins (9) including, CYP1A1, CYP3A4, CYP3A5, and F8, and a low proportion of novel-to-known variants on CYP2E1, VKORC1, and SULT1A1/2. Using a Bayesian approach, we identified variants influencing acenocumarol dosing on, VKORC1 (2), SULT1A1 (1), and CYP2D8P (1) explaining 40–55% of dose variability. A collection of pharmacogenetic variation on 110 genes related to the PK/PD of coumarins is also presented. Our results offer an initial insight into the use of a targeted NGS approach in the pharmacogenomics of coumarins in Mexican Mestizos.
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Affiliation(s)
| | | | | | | | | | | | | | - Xavier Soberon
- Instituto Nacional de Medicina Genomica, Mexico City, Mexico
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9
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Gonzalez-Covarrubias V, Martínez-Magaña JJ, Coronado-Sosa R, Villegas-Torres B, Genis-Mendoza AD, Canales-Herrerias P, Nicolini H, Soberón X. Exploring Variation in Known Pharmacogenetic Variants and its Association with Drug Response in Different Mexican Populations. Pharm Res 2016; 33:2644-52. [DOI: 10.1007/s11095-016-1990-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023]
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