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Plasma Proteome Profiling Reveals Dynamics of Inflammatory and Lipid Homeostasis Markers after Roux-En-Y Gastric Bypass Surgery

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  1. Chromosome-wise Protein Interaction Patterns and Their Impact on Functional Implications of Large-Scale Genomic Aberrations

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  1. The renal extraction and the natriuretic action of GLP-1 in humans depend on interaction with the GLP-1 receptor

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  2. Counterregulatory responses to postprandial hypoglycemia after Roux-en-Y gastric bypass

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  3. Fractionated free fatty acids and their relation to diabetes status after Roux-en-Y gastric bypass: A cohort study

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Obesity-related diseases affect half of the global population, and bariatric surgery is one of the few interventions with long-lasting weight loss and cardio-metabolic effects. Here, we investigated the effect of Roux-en-Y gastric bypass surgery on the plasma proteome, hypothesizing that specific proteins or protein patterns may serve as key mediators and markers of the metabolic response. We performed mass spectrometry (MS)-based proteomics on two longitudinal studies encompassing 47 morbidly obese patients, generating quantitative information on more than 1,700 proteins. A global correlation matrix incorporating about 200,000 relationships revealed functional connections between proteins and assigned them to physiological processes. The main classes of significantly altered proteins were markers of systemic inflammation and those involved in lipid metabolism. Our data highlight robust correlative and anti-correlative behaviors of circulating proteins to each other and to clinical parameters. A group of inflammation-related proteins showed distinct inverse relationships to proteins consistently associated with insulin sensitivity.

Original languageEnglish
JournalCell Systems
Volume7
Issue number6
Pages (from-to)601-612
ISSN2405-4712
DOIs
Publication statusPublished - 5 Dec 2018

ID: 55880773