RT Journal Article T1 Pyrosequencing analysis reveals changes in intestinal microbiota of healthy adults who received a daily dose of immunomodulatory probiotic strains. A1 Plaza-Díaz, Julio A1 Fernández-Caballero, Jose Ángel A1 Chueca, Natalia A1 García, Federico A1 Gómez-Llorente, Carolina A1 Sáez-Lara, María José A1 Fontana, Luis A1 Gil, Ángel K1 Gut K1 Healthy K1 Adults K1 High-throughput nucleotide sequencing K1 Microbiota K1 Probiotics K1 ADN bacteriano K1 Microbioma gastrointestinal K1 Voluntarios sanos K1 Secuenciación de nucleótidos de alto rendimiento K1 Filogenia K1 Probióticos K1 ARN ribosómico 16S K1 Análisis de secuencia de ADN AB The colon microbiota plays a crucial role in human gastrointestinal health. Current attempts to manipulate the colon microbiota composition are aimed at finding remedies for various diseases. We have recently described the immunomodulatory effects of three probiotic strains (Lactobacillus rhamnosus CNCM I-4036, Lactobacillus paracasei CNCM I-4034, and Bifidobacterium breve CNCM I-4035). The goal of the present study was to analyze the compositions of the fecal microbiota of healthy adults who received one of these strains using high-throughput 16S ribosomal RNA gene sequencing. Bacteroides was the most abundant genus in the groups that received L. rhamnosus CNCM I-4036 or L. paracasei CNCM I-4034. The Shannon indices were significantly increased in these two groups. Our results also revealed a significant increase in the Lactobacillus genus after the intervention with L. rhamnosus CNCM I-4036. The initially different colon microbiota became homogeneous in the subjects who received L. rhamnosus CNCM I-4036. While some orders that were initially present disappeared after the administration of L. rhamnosus CNCM I-4036, other orders, such as Sphingobacteriales, Nitrospirales, Desulfobacterales, Thiotrichales, and Synergistetes, were detected after the intervention. In summary, our results show that the intake of these three bacterial strains induced changes in the colon microbiota. PB MDPI YR 2015 FD 2015-05-26 LK http://hdl.handle.net/10668/2346 UL http://hdl.handle.net/10668/2346 LA en NO Plaza-Díaz J, Fernández-Caballero JÁ, Chueca N, García F, Gómez-Llorente C, Sáez-Lara MJ, et al. Pyrosequencing analysis reveals changes in intestinal microbiota of healthy adults who received a daily dose of immunomodulatory probiotic strains. Nutrients. 2015 ; 7(6):3999-4015 NO Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; DS RISalud RD Apr 17, 2025