Genome Wide Meta-Analysis identifies new loci associated with cardiac phenotypes and uncovers a common genetic signature shared by heart function and Alzheimer’s disease

Author:

Sáez MªEugenia,González-Pérez Antonio,Hernández-Olasagarre Begoña,Beà Aida,Moreno-Grau Sonia,Rojas Itziar de,Monté Gemma,Orellana Adela,Valero Sergi,Comella Joan X.,Sanchis Daniel,Ruiz Agustín,

Abstract

ABSTRACTAimsEchocardiography has become an indispensable tool for the study of heart performance, improving the monitoring of individuals with cardiac diseases. Diverse genetic factors associated with echocardiographic measures of heart structure and functions have been previously reported. The impact of several apoptotic genes in heart development identified in experimental models prompted us to assess their potential association with indicators of human cardiac function. This study started with the aim to investigate the possible association of variants of apoptotic genes with echocardiographic traits and to identify new genetic markers associated with cardiac function.Methods and resultsGenome wide data from different studies were obtained from public repositories. After quality control and imputation, association analyses confirm the role of caspases and other apoptosis related genes with cardiac phenotypes. Moreover, enrichment analysis showed an over-representation of genes, including some apoptotic regulators, associated with Alzheimer’s disease (AD). We further explored this unexpected observation which was confirmed by genetic correlation analyses.ConclusionsOur findings show the association of apoptotic gene variants with echocardiographic indicators of heart function and reveal a novel potential genetic link between echocardiographic measures in healthy populations and cognitive decline later on in life. These findings may have important implications for preventative strategies combating Alzheimer’s disease.

Publisher

Cold Spring Harbor Laboratory

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