Edward A Ruiz-Narváez
Biographic Data
| ID | 910050 |
|---|---|
| NAME | Edward A Ruiz-Narváez |
| GIVEN NAMES | Edward A |
| FAMILY NAME | Ruiz-Narváez |
| SIGNATURE | RUIZ-NARVÁEZ E A |
| AFFILIATIONS | Universidad de Costa Rica |
| ORCID | 0000-0002-0339-5824 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 9 |
| WORKS AS AUTHOR | 7 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
Perceived Experiences of racism in Relation to Genome-Wide DNA Methylation and Epigenetic Aging in the Black Women’s Health Study
Social Connections, Leukocyte Telomere Length, and All-Cause Mortality in Older Adults From Costa Rica
Objectives To examine the association of social connections with blood leukocyte telomere length (LTL) and all-cause mortality in older Costa Ricans. Methods Utilizing data from the Costa Rican Longevity and Healthy Aging Study (CRELES), a prospective cohort of 2827 individuals aged 60 and above followed since 2004, we constructed a Social Network Index (SNI) based on marital status, household size, interaction with non-cohabitating adult childre…
Amerindian ancestry and extended longevity in Nicoya, Costa Rica
OBJECTIVES: The aim of this study was to address the hypothesis that Amerindian ancestry is associated with extended longevity in the admixed population of Nicoya, Costa Rica. The Nicoya Peninsula of Costa Rica has been considered a "longevity island," particularly for males. METHODS: We estimated Amerindian ancestry using 464 ancestral informative markers in 20 old Nicoyans aged ≥99 years, and 20 younger Nicoyans (60-65 years). We used logistic …
Effect of Apolipoprotein E Genotype and Saturated Fat Intake on Plasma Lipids and Myocardial Infarction in the Central Valley of Costa Rica
We assessed the effect of APOE polymorphisms -491 A/T, C112R (APOE*4), and R158C (APOE*2) and saturated fat intake on plasma lipid levels and risk of myocardial infarction (MI) in 1,927 case subjects and 1,927 population-based control subjects matched for age, sex, and residence, all living in the Central Valley of Costa Rica. A significant gene-diet interaction (p = 0.0157) was observed. High saturated fat intake was associated with a 49% increa…
Genetic Variation of the Y Chromosome in Chibcha-Speaking Amerindians of Costa Rica and Panama
Genetic variation of the Y chromosome in five Chibchan tribes (Bribri, Cabecar, Guaymi, Huetar, and Teribe) of Costa Rica and Panama was analyzed using six microsatellite loci (DYS19, DYS389A, DYS389B, DYS390, DYS391, and DYS393), the Y-chromosome-specific alphoid system (alphah), the Y-chromosome Alu polymorphism (YAP), and a specific pre-Columbian transition (C-->T) (M3 marker) in the DYS 199 locus that defines the Q-M3 haplogroup. Thirty-nine …
Blood group, red cell, and serum protein variation in the Cabecar and Huetar, two Chibchan Amerindian tribes of Costa Rica
Genetic variation, using blood groups and red cell and serum proteins, was surveyed in the Cabecar of Chirripo and the Huetar of Quitirrisi, Costa Rica. Thirty-nine loci were screened in a sample of 91 Cabecars and 40 loci in 45 Huetars. Twenty-seven loci were monomorphic in the Cabecar and 30 in the Huetar. The proportions of polymorphic loci (P), out of 34 studied by electrophoresis, were 0.235 and 0.177, respectively. Estimated gene diversitie…
Blood group, red cell, and serum protein variation in the Cabecar and Huetar, two Chibchan Amerindian tribes of Costa Rica
Genetic variation, using blood groups and red cell and serum proteins, was surveyed in the Cabecar of Chirripo and the Huetar of Quitirrisi, Costa Rica. Thirty-nine loci were screened in a sample of 91 Cabecars and 40 loci in 45 Huetars. Twenty-seven loci were monomorphic in the Cabecar and 30 in the Huetar. The proportions of polymorphic loci (P), out of 34 studied by electrophoresis, were 0.235 and 0.177, respectively. Estimated gene diversitie…
Genetic Variation of the Y Chromosome in Chibcha-Speaking Amerindians of Costa Rica and Panama
Genetic variation of the Y chromosome in five Chibchan tribes (Bribri, Cabecar, Guaymi, Huetar, and Teribe) of Costa Rica and Panama was analyzed using six microsatellite loci (DYS19, DYS389A, DYS389B, DYS390, DYS391, and DYS393), the Y-chromosome-specific alphoid system (alphah), the Y-chromosome Alu polymorphism (YAP), and a specific pre-Columbian transition (C-->T) (M3 marker) in the DYS 199 locus that defines the Q-M3 haplogroup. Thirty-nine …
Effect of Apolipoprotein E Genotype and Saturated Fat Intake on Plasma Lipids and Myocardial Infarction in the Central Valley of Costa Rica
We assessed the effect of APOE polymorphisms -491 A/T, C112R (APOE*4), and R158C (APOE*2) and saturated fat intake on plasma lipid levels and risk of myocardial infarction (MI) in 1,927 case subjects and 1,927 population-based control subjects matched for age, sex, and residence, all living in the Central Valley of Costa Rica. A significant gene-diet interaction (p = 0.0157) was observed. High saturated fat intake was associated with a 49% increa…
Blood group, red cell, and serum protein variation in the Cabecar and Huetar, two Chibchan Amerindian tribes of Costa Rica
Genetic variation, using blood groups and red cell and serum proteins, was surveyed in the Cabecar of Chirripo and the Huetar of Quitirrisi, Costa Rica. Thirty-nine loci were screened in a sample of 91 Cabecars and 40 loci in 45 Huetars. Twenty-seven loci were monomorphic in the Cabecar and 30 in the Huetar. The proportions of polymorphic loci (P), out of 34 studied by electrophoresis, were 0.235 and 0.177, respectively. Estimated gene diversitie…
Blood group, red cell, and serum protein variation in the Cabecar and Huetar, two Chibchan Amerindian tribes of Costa Rica
Genetic variation, using blood groups and red cell and serum proteins, was surveyed in the Cabecar of Chirripo and the Huetar of Quitirrisi, Costa Rica. Thirty-nine loci were screened in a sample of 91 Cabecars and 40 loci in 45 Huetars. Twenty-seven loci were monomorphic in the Cabecar and 30 in the Huetar. The proportions of polymorphic loci (P), out of 34 studied by electrophoresis, were 0.235 and 0.177, respectively. Estimated gene diversitie…
Genetic Variation of the Y Chromosome in Chibcha-Speaking Amerindians of Costa Rica and Panama
Genetic variation of the Y chromosome in five Chibchan tribes (Bribri, Cabecar, Guaymi, Huetar, and Teribe) of Costa Rica and Panama was analyzed using six microsatellite loci (DYS19, DYS389A, DYS389B, DYS390, DYS391, and DYS393), the Y-chromosome-specific alphoid system (alphah), the Y-chromosome Alu polymorphism (YAP), and a specific pre-Columbian transition (C-->T) (M3 marker) in the DYS 199 locus that defines the Q-M3 haplogroup. Thirty-nine …
Effect of Apolipoprotein E Genotype and Saturated Fat Intake on Plasma Lipids and Myocardial Infarction in the Central Valley of Costa Rica
We assessed the effect of APOE polymorphisms -491 A/T, C112R (APOE*4), and R158C (APOE*2) and saturated fat intake on plasma lipid levels and risk of myocardial infarction (MI) in 1,927 case subjects and 1,927 population-based control subjects matched for age, sex, and residence, all living in the Central Valley of Costa Rica. A significant gene-diet interaction (p = 0.0157) was observed. High saturated fat intake was associated with a 49% increa…
Amerindian ancestry and extended longevity in Nicoya, Costa Rica
OBJECTIVES: The aim of this study was to address the hypothesis that Amerindian ancestry is associated with extended longevity in the admixed population of Nicoya, Costa Rica. The Nicoya Peninsula of Costa Rica has been considered a "longevity island," particularly for males. METHODS: We estimated Amerindian ancestry using 464 ancestral informative markers in 20 old Nicoyans aged ≥99 years, and 20 younger Nicoyans (60-65 years). We used logistic …
Perceived Experiences of racism in Relation to Genome-Wide DNA Methylation and Epigenetic Aging in the Black Women’s Health Study
Social Connections, Leukocyte Telomere Length, and All-Cause Mortality in Older Adults From Costa Rica
Objectives To examine the association of social connections with blood leukocyte telomere length (LTL) and all-cause mortality in older Costa Ricans. Methods Utilizing data from the Costa Rican Longevity and Healthy Aging Study (CRELES), a prospective cohort of 2827 individuals aged 60 and above followed since 2004, we constructed a Social Network Index (SNI) based on marital status, household size, interaction with non-cohabitating adult childre…
Biology (6 works) · Demography (4 works) · Forensic and Genetic Research (4 works) · Gene (4 works) · Genetics (4 works) · Medicine (4 works) · Sociology (4 works) · Evolutionary biology (3 works) · Genetic Associations and Epidemiology (3 works) · Internal Medicine (3 works)