Anxiety Disturbs Metabolome of Blood Plasma in Coronary Heart Disease Patients

Abstract Coronary heart disease (CHD) is the result of complex metabolic disorder caused by various environmental and genetic factors, and often comorbidity with anxiety. Anxiety was known to an independent risk factor for the adverse cardiovascular events and mortality in patients with CHD, while how stress-induced anxiety behavior impacts the metabolome of blood plasma in CHD patients and contributes to CHD worse is unclear. So this study aimed to investigate the effect of anxiety on metabolome of plasma in CHD patients. According to the inclusion and exclusion standard the blood plasma of CHD patients and CHD comorbidity with anxiety were collected after ethics approval. Metabolome analysis of blood plasma using liquid chromatography mass spectrometry (LC/MS) was performed, then multivariate data analysis was applied to evaluate the data. Disturbance of 39 plasma metabolites were altered in CHD patients accompany by anxiety patients as compared to control group. These disturbed metabolites were mainly involved in tryptophan metabolism, pyrimidine metabolism, glycerophospholipid metabolism, pentose phosphate metabolism, phenylalanine metabolism, pentose and glucuronate interconversions. The most significant pathway was tryptophan metabolism including the down-regulation of tryptophan and serotonin. In addition to tryptophan metabolism, the glycerophospholipids metabolism, pentose and glucuronate interconversions and pentose phosphate pathway were also greatly affected in this study. These results suggest that anxiety may further disturb CHD three translation of material metabolome. Besides theses metabolism pathway pyrimidine metabolism disturbed significantly which can aggravate the disease in patients with CHD. From these resoults the plasma metabolites monitoring was suggested to be recommended and may be conducive to early detect biomarkers to personalized treatment anxiety in patients with CHD in future.