Population structure from NOS genes correlates with geographical differences in coronary incidence across Europe
| Autor: | Laurent Varesi, Pedro Moral, Naris Pojskić, Valentina Coia, Hassen Chaabani, Marc Via, Albert Ferran, Robert Carreras-Torres, Esther Esteban, Daniela Zanetti |
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| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Male Population Single-nucleotide polymorphism Biology Polymorphism Single Nucleotide White People Gene flow 03 medical and health sciences Middle East Africa Northern Risk Factors Genetic variation Human population genetics Humans Genetic Predisposition to Disease education Gene Selection (genetic algorithm) Genetics education.field_of_study Incidence (epidemiology) Europe 030104 developmental biology Genetics Population Cardiovascular Diseases Anthropology Female Anatomy Nitric Oxide Synthase |
| Zdroj: | American journal of physical anthropology. 161(4) |
| ISSN: | 1096-8644 |
| Popis: | OBJECTIVES The population analysis of cardiovascular risk and non-risk genetic variation can help to identify adaptive or random demographic processes that shaped coronary incidence variation across geography. MATERIAL AND METHODS In this study, 114 single nucleotide polymorphisms and 17 tandem repeat polymorphisms from Nitric Oxide Synthases (NOS) regions were analyzed in 1686 individuals from 35 populations from Europe, North Africa, and the Middle East. NOS genes encode for key enzymes on nitric oxide availability, which is involved in several cardiovascular processes. These genetic variations were used to test for selection and to infer the population structure of NOS regions. Moreover, we tested whether the variation in the incidence of coronary events and in the levels of classical risk factors in 11 of these European populations could be explained by the population structure estimates. RESULTS Our results supported, first, the absence of clear signs of selection for NOS genetic variants associated with cardiovascular diseases, and second, the presence of a continuous genetic pattern of variation across European and North African populations without a Mediterranean barrier for gene flow. Finally, population structure estimates from NOS regions are closely correlated with coronary event rates and classical risk parameters (explaining 39-98%) among European populations. CONCLUSION Our results reinforce the hypothesis that genetic bases of cardiovascular diseases and associated complex phenotypes could be geographically shaped by random demographic processes. |
| Databáze: | OpenAIRE |
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