Biological Properties and Probiotic Potential of Intestinal Lactobacilli

Abstract

Data on inefficiency in some cases or temporary positive effect of commercial probiotics led to the development of the concept of autoprobiotic therapy. According to this, the correction of disturbed microbiocenoses is carried out using autostrains of indigenous normal flora (bifidobacteria, lactobacilli and enterococci). However, publications about effectiveness of autoprobiotic therapy are few and contradictory.The aim of the study was to investigate the biological properties and probiotic potential of intestinal lactobacilli, as well as the effectiveness of autoprobiotic therapy, based on Lactobacillus spp.Methods. Biological properties (antibiotic resistance, hemolytic, adhesive and antagonistic activity) were studied in 159 strains of intestinal lactobacilli. Autoprobiotic therapy with sour-milk ferments based on lactobacilli autostrains was carried out in 78 patients of the of the North Caucasus Federal District (NCFD) hospitals to correct the microbiocenosis of the large intestine due to antibiotic therapy.Results. The indigene strains of the intestinal lactobacilli of patients of NCFD hospitals are characterized by a wide spectrum of antibiotic sensitivity, lack of hemolysin production, medium adhesiveness and a high degree of antagonistic activity. Autoprobiotic therapy using Lactobacillus spp. significantly increases the amount of lactobacilli of the large intestine of patients in hospitals of the North Caucasian Federal District.Conclusion. A high probiotic potential of the indigenous intestinal lactobacilli is identified, which makes it possible to use them as effective autoprobiotics. The effectiveness of autoprobiotics with fermented milk starters with Lactobacillus spp. has been proven to restore the normal amount of intestinal lactobacilli patients after the use of broad-spectrum antibiotics.