Association Study of Gut Flora in Coronary Heart Disease through High-Throughput Sequencing

Author:

Cui Li1,Zhao Tingting1,Hu Haibing1,Zhang Wen2,Hua Xiuguo1ORCID

Affiliation:

1. Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China

2. School of Medical Science and Laboratory Medicine, Jiangsu University, Jiangsu 212013, China

Abstract

Objectives.We aimed to explore the impact of gut microbiota in coronary heart disease (CHD) patients through high-throughput sequencing.Methods.A total of 29 CHD in-hospital patients and 35 healthy volunteers as controls were included. Nucleic acids were extracted from fecal samples, followed byαdiversity and principal coordinate analysis (PCoA). Based on unweighted UniFrac distance matrices, unweighted-pair group method with arithmetic mean (UPGMA) trees were created.Results.After data optimization, an average of121312±19293reads in CHD patients and234372±108725reads in controls was obtained. Reads corresponding to 38 phyla, 90 classes, and 584 genera were detected in CHD patients, whereas 40 phyla, 99 classes, and 775 genera were detected in controls. The proportion of phylum Bacteroidetes (56.12%) was lower and that of phylum Firmicutes was higher (37.06%) in CHD patients than those in the controls (60.92% and 32.06%,P<0.05). PCoA and UPGMA tree analysis showed that there were significant differences of gut microbial compositions between the two groups.Conclusion.The diversity and compositions of gut flora were different between CHD patients and healthy controls. The incidence of CHD might be associated with the alteration of gut microbiota.

Funder

Shanghai Jiao Tong University

Publisher

Hindawi Limited

Subject

General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

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