OBJECTIVE: The gut microbiota is increasingly being implicated in cardiovascular health. Metabolites produced by bacteria have been suggested to be mediators in the bacterial action on cardiovascular health. We aimed to identify gut microbiota-related plasma metabolites and test whether these metabolites associate with future risk of coronary artery disease (CAD). METHODS: Nontargeted metabolomics was performed using liquid chromatography-mass spectrometry in order to measure 1446 metabolite features in the Malmö Offspring Study (MOS) (N = 776). The gut microbiota was characterized using 16S rRNA sequencing. Gut bacteria-related metabolites were measured in two independent prospective cohorts, the Malmö Diet and Cancer - Cardiovascular Cohort (MDC-CC) (N = 3361) and the Malmö Preventive Project (MPP) (N = 880), in order to investigate the associations between gut bacteria-related metabolites and risk of CAD. RESULTS: In MOS, 33 metabolite features were significantly (P < 4.8e-7) correlated with at least one operational taxonomic unit. Phenylacetylglutamine (PAG) was associated with an increased risk of future CAD, using inverse variance weighted meta-analysis of age and sex-adjusted logistic regression models in MDC-CC and MPP. PAG remained significantly associated with CAD (OR = 1.17, 95% CI = 1.06-1.29, P = 1.9e-3) after adjustments for cardiovascular risk factors. CONCLUSION: The levels of 33 plasma metabolites were correlated with the gut microbiota. Out of these, PAG was associated with an increased risk of future CAD independently of other cardiovascular risk factors. Our results highlight a link between the gut microbiota and CAD risk and should encourage further studies testing if modification of PAG levels inhibits development of CAD.
OBJECTIVE: The gut microbiota is increasingly being implicated in cardiovascular health. Metabolites produced by bacteria have been suggested to be mediators in the bacterial action on cardiovascular health. We aimed to identify gut microbiota-related plasma metabolites and test whether these metabolites associate with future risk of coronary artery disease (CAD). METHODS: Nontargeted metabolomics was performed using liquid chromatography-mass spectrometry in order to measure 1446 metabolite features in the Malmö Offspring Study (MOS) (N = 776). The gut microbiota was characterized using 16S rRNA sequencing. Gut bacteria-related metabolites were measured in two independent prospective cohorts, the Malmö Diet and Cancer - Cardiovascular Cohort (MDC-CC) (N = 3361) and the Malmö Preventive Project (MPP) (N = 880), in order to investigate the associations between gut bacteria-related metabolites and risk of CAD. RESULTS: In MOS, 33 metabolite features were significantly (P < 4.8e-7) correlated with at least one operational taxonomic unit. Phenylacetylglutamine (PAG) was associated with an increased risk of future CAD, using inverse variance weighted meta-analysis of age and sex-adjusted logistic regression models in MDC-CC and MPP. PAG remained significantly associated with CAD (OR = 1.17, 95% CI = 1.06-1.29, P = 1.9e-3) after adjustments for cardiovascular risk factors. CONCLUSION: The levels of 33 plasma metabolites were correlated with the gut microbiota. Out of these, PAG was associated with an increased risk of future CAD independently of other cardiovascular risk factors. Our results highlight a link between the gut microbiota and CAD risk and should encourage further studies testing if modification of PAG levels inhibits development of CAD.
Authors: Dong Hang; Oana A Zeleznik; Jiayi Lu; Amit D Joshi; Kana Wu; Zhibin Hu; Hongbing Shen; Clary B Clish; Liming Liang; A Heather Eliassen; Shuji Ogino; Jeffrey A Meyerhardt; Andrew T Chan; Mingyang Song Journal: Eur J Epidemiol Date: 2022-01-15 Impact factor: 12.434
Authors: Huanan Shi; Bojun Zhang; Taylor Abo-Hamzy; James W Nelson; Chandra Shekar R Ambati; Joseph F Petrosino; Robert M Bryan; David J Durgan Journal: Circ Res Date: 2021-02-18 Impact factor: 17.367
Authors: Queenie Chan; Gina M Wren; Chung-Ho E Lau; Timothy M D Ebbels; Rachel Gibson; Ruey Leng Loo; Ghadeer S Aljuraiban; Joram M Posma; Alan R Dyer; Lyn M Steffen; Beatriz L Rodriguez; Lawrence J Appel; Martha L Daviglus; Paul Elliott; Jeremiah Stamler; Elaine Holmes; Linda Van Horn Journal: Am J Clin Nutr Date: 2022-07-06 Impact factor: 8.472
Authors: Fayth L Miles; Michael J Orlich; Andrew Mashchak; Paulette D Chandler; Johanna W Lampe; Penelope Duerksen-Hughes; Gary E Fraser Journal: Nutrients Date: 2022-02-08 Impact factor: 5.717