Key result
Integrative multi-OMIC profiling of fasting and postprandial responses in 124 symptom-free adults characterized early biomarkers for cardiovascular and immunometabolic risk.
Why the study?
To replicate previous findings in a larger cohort to improve characterization of early biomarkers for cardiovascular/immunometabolic risk in symptom-free adults with adipose tissue dysfunction.
Observational (n=124)
Multi-OMIC profiling during a postprandial time course can identify early immunometabolic and cardiovascular risk signatures in symptom-free adults with adipose tissue dysfunction.
Should not yet change practice; hypothesis-generating for postprandial multi-OMIC biomarkers in early cardiovascular risk.
We previously reported preliminary characterization of adipose tissue (AT) dysfunction through the adiponectin/leptin ratio (ALR) and fasting/postprandial (F/P) gene expression in subcutaneous (SQ) adipose tissue (AT) biopsies obtained from participants in the GEMM study, a precision medicine research project. Here we present integrative data replication of previous findings from an increased number of GEMM symptom-free (SF) adults (N = 124) to improve characterization of early biomarkers for cardiovascular (CV)/immunometabolic risk in SF adults with AT dysfunction. We achieved this goal by taking advantage of the rich set of GEMM F/P 5 h time course data and three tissue samples collected at the same time and frequency on each adult participant (F/P blood, biopsies of SQAT and skeletal muscle (SKM)). We classified them with the presence/absence of AT dysfunction: low (<1) or high (>1) ALR. We also examined the presence of metabolically healthy (MH)/unhealthy (MUH) individuals through low-grade chronic subclinical inflammation (high sensitivity C-reactive protein (hsCRP)), whole body insulin sensitivity (Matsuda Index) and Metabolic Syndrome criteria in people with/without AT dysfunction. Molecular data directly measured from three tissues in a subset of participants allowed fine-scale multi-OMIC profiling of individual postprandial responses (RNA-seq in SKM and SQAT, miRNA from plasma exosomes and shotgun lipidomics in blood). Dynamic postprandial immunometabolic molecular endophenotypes were obtained to move towards a personalized, patient-defined medicine. This study offers an example of integrative translational research, which applies bench-to-bedside research to clinical medicine. Our F/P study design has the potential to characterize CV/immunometabolic early risk detection in support of precision medicine and discovery in SF individuals.
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Cabriales et al. (2021) conducted an observational in Symptom-free adults (n=124). Adipose tissue dysfunction (adiponectin/leptin ratio <1) vs. No adipose tissue dysfunction (adiponectin/leptin ratio >1) was evaluated on Early biomarkers for cardiovascular and immunometabolic risk. Integrative multi-OMIC profiling of fasting and postprandial responses in 124 symptom-free adults characterized early biomarkers for cardiovascular and immunometabolic risk.
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