Gut microbiome as a biomarker of cardiometabolic disorders
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Division of Cardiology with Cardiac Intensive Care Unit, Cardinal Stefan Wyszyński Hospital, Lublin, Poland
Pope John Paul II State School of Higher Education, Biała Podlaska, Poland
Chair and Department of Medical Microbiology, Medical University, Lublin, Poland; Division of Gastroenterology, Cardinal Stefan Wyszyński Hospital, Lublin, Poland
Genomic Laboratory, DNA Research Centre, Poznań, Poland
Genomic Laboratory, DNA Research Centre, Poznań, Poland; Laboratory of High Throughput Technologies, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznan, Poland
Corresponding author
Anna Gózd-Barszczewska   

Division of Cardiology with the Cardiac Intensive Care Unit, The Cardinal Stefan Wyszyński Hospital in Lublin, Poland, Al. Kraśnicka 100, 20-718 Lublin, Poland
Ann Agric Environ Med. 2017;24(3):416-422
Introduction and objective:
Cardiovascular diseases are the leading cause of death in Europe and worldwide. One of the most important risk factors for atherosclerosis are lipid metabolism disorders, in particular hipercholesterolaemia. The aim of the study was to determine the correlation between gut microbiota composition and atherosclerosis risk factors, so in order that it might be used as a biomarker for coronary artery disease diagnosis.

Material and methods:
The study involved middle-aged men in eastern Poland with central obesity (n=20), subjects with atherosclerosis (n=15) and those with no cardiovascular diseases (n=5). The gut microbiota composition was determined using tag-encoded 16S rRNA gene using Illuminal MiSeq. Data were analyzed with the use of t-test.

Firmicutes (49.26%) and Bacteroidetes (44.46%) were the dominant Phyla in the middle-aged men in eastern Poland. Subjects with improper levels of total cholesterol were enriched in Prevotella (p=0.03) and decreased level of Clostridium (p=0.02). They also showed a falling tendency in Faecalibacterium (p=0.07). An upward trend was observed in Prevotella (p=0.07) in subjects with improper LDL-C values.

The study showed that intestinal microbiome is likely to play a role in the pathogenesis of atherosclerosis through its role in lipid metabolism. Bacterial genera of particular importance were Prevotella, Bacteroides, Clostridium, Faecalibacterium. However, further studies involving larger groups of subjects are required to confirm these observations.

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