Genome-wide association study of the postprandial triglyceride response yields common genetic variation in LIPC (hepatic lipase)

Autor: Raymond Noordam, Diana van Heemst, Lisanne L. Blauw, Dorina Ibi, Ruifang Li-Gao, Tim Christen, Renée de Mutsert, Ko Willems van Dijk, J. Wouter Jukema, Jan B. van Klinken, Martijn E.T. Dollé, Dennis O. Mook-Kanamori, Frits R. Rosendaal, Stella Trompet, Patrick C.N. Rensen
Přispěvatelé: Laboratory Genetic Metabolic Diseases, Laboratory for General Clinical Chemistry, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Circulation: Genomic and Precision Medicine, 13(4), 289-297. LIPPINCOTT WILLIAMS & WILKINS
Circulation. Genomic and precision medicine, 13(4), 289-297. Lippincott Williams and Wilkins Ltd.
ISSN: 2574-8300
Popis: Background: The increase in serum triglyceride (TG) concentrations in response to a meal is considered a risk factor for cardiovascular disease. We aimed to elucidate the genetics of the postprandial TG response through genome-wide association studies (GWAS). Methods: Participants of the NEO (Netherlands Epidemiology of Obesity) study (n=5630) consumed a liquid mixed meal after an overnight fast. GWAS of fasting and postprandial serum TG at 150 minutes were performed. To identify genetic variation of postprandial TG independent of fasting TG, we calculated the TG response at 150 minutes by the residuals of a nonlinear regression that predicted TG at 150 minutes as a function of fasting TG. Association analyses were adjusted for age, sex, and principal components in a linear regression model. Next, using the identified variants as determinants, we performed linear regression analyses on the residuals of the postprandial response of 149 nuclear magnetic resonance-based metabolite measures. Results: GWAS of fasting TG and postprandial serum TG at 150 minutes resulted in completely overlapping loci, replicating previous GWAS. From GWAS of the TG response, we identified rs7350789-A (allele frequency=0.36), mapping to hepatic lipase (LIPC), to be associated with a smaller increase in TG concentrations at 150 minutes (beta=-0.11;P-value=5.1x10(-8)). Rs7350789-A was associated with responses of 33 metabolite measures (P-value
Databáze: OpenAIRE