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Metabolomic study on a schizophrenia and type 2 diabetes susceptibility gene

ABSTRACT: a comprehensive serum metabolomic analysis in healthy subjects with different genotypes of rs12742393 (n=49 for AA, AC, and CC, respectively) using gas chromatography–time-of-flight mass spectrometry and ultra-performance liquid chromatography quadruple time-of-flight mass spectrometry.

ORGANISM(S): Human Homo Sapiens

TISSUE(S): Blood

DISEASE(S): Diabetes

SUBMITTER: Yinan Zhang

PROVIDER: ST000568 | MetabolomicsWorkbench | Sun Jan 15 00:00:00 GMT 2017

REPOSITORIES: MetabolomicsWorkbench

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Project description:Background: Arachidonic acid (AA) metabolism pathway is dominant in metabolic programming after hypoxia exposure, but its biological function is disputed and require in-depth studies. In this research, we aimed at integrating plasma metabolomics and transcriptomics approaches to systematically explore its roles in response to acute hypoxia based on model of acute high-altitude exposure. Methods: Blood samples were taken from 53 enrolled subjects before and after their exposure to high altitude. Ultra-performance liquid chromatography- quadrupole time-of-flight mass spectrometry and RNA sequencing were performed to acquire corresponding metabolomic and transcriptomic profiling along with hypoxia exposure, separately. Influential modules comprising essential metabolites and genes were identified by weighted gene co-expression network analysis (WGCNA) after integrating metabolic information with phenotypic and transcriptomic datasets, respectively. Results: Enrolled individuals showed significant alterations in heart rate, SpO2, hemoglobin and Lake Louise Score (LLS) in response to hypoxia. Metabolomics profiling demonstrated that AA metabolism pathway was remarkable in these metabolic alterations. Integrated analysis of metabolomic and transcriptomic data revealed that increasing AA metabolism pathway might count for gas transport incapacitation and disorders in hemoglobin metabolism under hypoxia stimuli. Moreover, identified in further analysis and another cohort, excessively elevated AA metabolism pathway was involved in poor response to hypoxia. Conclusion: Our study, for the first time, constructed the maps of AA metabolism pathway in response to hypoxia; and revealed the crosstalk between phenotypic variation to hypoxia and AA metabolism pathway. These findings will not only advanced pathophysiological mechanisms for acute hypoxic diseases, but provided new insights into critical roles of AA metabolism pathway in development and prevention of these diseases.

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Metabolomic study on a schizophrenia and type 2 diabetes susceptibility gene

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