Lipidomics and structural genomics of cardiometabolic health in Samoan adults
Project Number2R01HL133040-06A1
Former Number2R01HL133040-06
Contact PI/Project LeaderMINSTER, RYAN LEE
Awardee OrganizationUNIVERSITY OF PITTSBURGH AT PITTSBURGH
Description
Abstract Text
SUMMARY/ABSTRACT
Title: Lipidomics and structural genomics of cardiometabolic health in Samoan adults
Project Period: 09/01/2023–08/31/2027
Pacific Islanders, such as Samoans, are disproportionally burdened by cardiometabolic disease yet are un-
derrepresented as participants in health research generally, and in genomics research specifically. In this project
we will expand the knowledge of lipidomic and genetic structural variation present in Samoans to understand the
relationships between the lipidome, simple nucleotide variation, structural genetic, modifiable risk factors, and
cardiometabolic health. In our first aim, we will determine associations between comprehensive serum lipid pro-
files and both simple nucleotide variation and cardiometabolic traits in 4,300 Samoan adults from Samoa and
American Samoa. To achieve this, we will first generate comprehensive lipidomic data, then characterize asso-
ciations between the lipidome, modifiable risk factors, and cardiometabolic phenotypes, conduct lipidome-wide
association studies of known genetic determinants of lipid variation, and perform genome-wide association stud-
ies of the lipidome. In our second aim, we will evaluate associations between structural genetic variation and
both comprehensive lipid profiles and cardiometabolic phenotypes by calling structural variation in 1,285 se-
quenced Samoan adults, imputing that variation into the larger set of the aforementioned 4,300 Samoan adults,
examining associations between structural variation near known genetic determinants of lipidome and cardi-
ometabolic variation, and examining associations between genome-wide structural variation and the lipidome
and cardiometabolic phenotypes. In our third aim, we will conduct exploratory integrative analyses to identify
systems-level patterns among the layers of information available and gathered in the first two aims. Finally, in
our fourth aim, we will propose and lead collaborative investigations of our findings with collaborators among the
TOPMed Program. our active participation with the Program will enlarge the range of multi-ancestry analyses
possible among the participating studies and broaden the impact of this work beyond Samoa. Our discoveries
will improve our understanding of the basic biology of lipids and downstream cardiometabolic health outcomes,
as well as identify potential targets for interventions to improve cardiometabolic health.
Public Health Relevance Statement
NARRATIVE
Title: Lipidomics and structural genomics of cardiometabolic health in Samoan adults
Project Period: 04/01/2023–03/31/2027
This project will explore the relationships between lipids, genes, environment, heart health, and obesity-related
traits among Samoans, a Pacific Islander population with high rates of diseases like type 2 diabetes and heart
disease. This study will focus on the lipidome, made up of biologically simpler lipid species than conventional
cholesterol measurements, and on structural changes in the genome, which are expected to have larger effects
than simpler genetic variants. Our discoveries will improve our understanding of the basic biology of lipids and
how they affect heart health and obesity-related traits. We will also identify potential targets for interventions to
improve health overall.
NIH Spending Category
No NIH Spending Category available.
Project Terms
AddressAdultAffectAlcohol consumptionAmericanAmerican SamoaArchitectureAsian AmericansBiologicalBiologyBlood PressureCardiac healthCardiometabolic DiseaseCholesterolComplexDataData AnalysesData SetDietary PracticesDiseaseEnvironmentEtiologyFeedbackFundingGenesGeneticGenetic DeterminismGenetic VariationGenomeGenomicsGenotypeHealthHeart DiseasesHigh Density Lipoprotein CholesterolIndividualInterdisciplinary StudyInterventionInvestigationKnowledgeLeadLipidsMapsMeasurementMeasuresMendelian randomizationMissionMolecularNational Heart, Lung, and Blood InstituteNative Hawaiian or Other Pacific IslanderNon-Insulin-Dependent Diabetes MellitusNucleotidesObesityOutcomeOverweightPacific IslanderParticipantPatternPersonsPhenotypePolynesianPopulationPopulation HeterogeneityPositioning AttributeResearchRisk FactorsSamoaSamoanSamplingSerumSocioeconomic StatusSourceSystemTestingTobacco useTrans-Omics for Precision MedicineUnited States National Institutes of HealthVariantVoiceWorkancestry analysiscardiometabolismcommunity advisory boardcommunity partnershipcomorbiditydiabetes riskepidemiology studyexperiencefasting glucosegenetic variantgenome wide association studygenome-widehigh body mass indexhigh riskimprovedinsightlipidomelipidomicslipoprotein triglyceridemodifiable risknovelobesity riskprogramsresponsesedentarystructural genomicstrait
No Sub Projects information available for 2R01HL133040-06A1
Publications
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