1. Genome-wide analysis of blood lipid metabolites in over 5000 South Asians reveals biological insights at cardiometabolic disease loci
- Author
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Zoubia Hina, Julian L. Griffin, Asif Rasheed, Nadeem Qamar, Danish Saleheen, Dirk S. Paul, Imran Saleem, Taniya Sattar, M. Ishaq, Nadeem Hayat Mallick, Adam S. Butterworth, Philippe M. Frossard, Daniel Ziemek, Fazal-ur-Rehman Memon, Syed Nadeem Hasan Rizvi, Albert Koulman, Anjum Jalal, Tahir Saghir, John Danesh, Angela M. Wood, David Stacey, Eric B. Fauman, Unzila Ishtiaq, Anis Memon, Rachel M. Y. Ong, Eric L. Harshfield, Shahid Abbas, Zameer-ul-Asar, Zia Yaqub, Syed Zahed Rasheed, Harshfield, Eric [0000-0001-8767-0928], Paul, Dirk [0000-0002-8230-0116], Danesh, John [0000-0003-1158-6791], Butterworth, Adam [0000-0002-6915-9015], Wood, Angela [0000-0002-7937-304X], Koulman, Albert [0000-0001-9998-051X], Apollo - University of Cambridge Repository, and Paul, Dirk S [0000-0002-8230-0116]
- Subjects
South asia ,Population ,Myocardial Infarction ,Blood lipids ,Disease ,Gaussian Graphical Modelling ,Polymorphism, Single Nucleotide ,White People ,03 medical and health sciences ,0302 clinical medicine ,Asian People ,Lipidomics ,Genetics ,Medicine ,South Asian ,Humans ,Genetic Predisposition to Disease ,education ,Gene ,030304 developmental biology ,0303 health sciences ,education.field_of_study ,business.industry ,General Medicine ,Lipidome ,Lipids ,Genetic architecture ,3. Good health ,Network analysis ,business ,030217 neurology & neurosurgery ,Research Article ,Genome-Wide Association Study - Abstract
Background Genetic, lifestyle, and environmental factors can lead to perturbations in circulating lipid levels and increase the risk of cardiovascular and metabolic diseases. However, how changes in individual lipid species contribute to disease risk is often unclear. Moreover, little is known about the role of lipids on cardiovascular disease in Pakistan, a population historically underrepresented in cardiovascular studies. Methods We characterised the genetic architecture of the human blood lipidome in 5662 hospital controls from the Pakistan Risk of Myocardial Infarction Study (PROMIS) and 13,814 healthy British blood donors from the INTERVAL study. We applied a candidate causal gene prioritisation tool to link the genetic variants associated with each lipid to the most likely causal genes, and Gaussian Graphical Modelling network analysis to identify and illustrate relationships between lipids and genetic loci. Results We identified 253 genetic associations with 181 lipids measured using direct infusion high-resolution mass spectrometry in PROMIS, and 502 genetic associations with 244 lipids in INTERVAL. Our analyses revealed new biological insights at genetic loci associated with cardiometabolic diseases, including novel lipid associations at the LPL, MBOAT7, LIPC, APOE-C1-C2-C4, SGPP1, and SPTLC3 loci. Conclusions Our findings, generated using a distinctive lipidomics platform in an understudied South Asian population, strengthen and expand the knowledge base of the genetic determinants of lipids and their association with cardiometabolic disease-related loci.
- Published
- 2021