The qualitative and quantitative characteristics of the intestinal microbiota determine the presence and severity of metabolic disorders in overweight and obese patients.
PURPOSE OF THE STUDY
To study the quantitative and qualitative characteristics of the intestinal microbiota, gastroenterological complaints and quality of life in overweight, obese and type 2 diabetes patients.
MATERIAL AND METHODS
The study involved 51 overweight and obese patients. Patients were determined by weight, height, waist circumference; intestinal microbiota was studied by real-time polymerase chain reaction. Plasma concentrations of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma-glutamine transpeptidase, bilirubin by fractions, albumin, glucose, insulin, lactate dehydrogenase, triglycerides, total cholesterol, low-density lipoproteins, high-density lipoproteins, C-reactive protein were determined in patients. Patients completed the GSRS, SF-36 questionnaires. The study compared the gut microbiota in overweight and obese patients with and without type 2 diabetes. Clinical, physical, laboratory parameters were determined that correlated with the concentration of intestinal bacteria
RESULTS
The study involved 51 patients: 19 (37%) men and 32 (63%). The median age was 54 (44; 63) years, the median body mass index was 30.99 (28.62; 34.44) kg/m2. Abdominal obesity was detected in 46 (90.2%) patients. 28 (54.9%) patients had diabetes mellitus. Differences between patients with and without type 2 diabetes: total bacterial mass — 12.00 [10.00; 12.78] vs 10.78 [9.78; 11.48] (p=0.004); Lactobacillus spp. — 0.00 [0.00; 5.00] vs 5.00 [5.00; 5.70] (p<0.001); Escherichia coli — 8.30 [6.90; 9.00] vs 6.60 [6.30; 7.78] (p<0.001); Bacteroides spp. — 11.92 [10.70; 13.00] vs 10.78 [9.78; 11.30] (p<0.001); Bacteroides thetaiotaomicron — 7.30 [0.00; 9.00] vs. 0.00 [0.00; 6.95] (p=0.010); Akkermansia muciniphila — 0.00 [0.00; 0.00] vs 6.30 [0.00; 8.48] log10 CFU/g (p=0.050). Against the background of increasing of the waist circumference, the concentration of Lactobacillus spp. in the stool was decreasing, while the concentrations of E. coli, Bacteroides spp. and S. aureus was increasing. The increase in the concentration of A. muciniphila and Lactobacillus spp. was accompanied by a decrease in biochemical markers of metabolic disorders.
CONCLUSION
The study showed that the concentration of intestinal bacteria is associated with the presence of diabetes mellitus and other metabolic disorders.