- 2022-08-20
- International journal of obesity (2005) 46(11)
- Marília Rizzon Zaparolli Ramos
- Ingrid Felicidade
- Lígia de Oliveira Carlos
- Nathalia Ramori Farinha Wagner
- Mário Sérgio Mantovani
- Luan Vitor Alves de Lima
- Lúcia Regina Ribeiro
- Thiago Inácio Barros Lopes
- Fernanda Carla Henrique-Bana
- João Vitor Zimmerman
- Fernando Cesar Macedo Junior
- Magda Rosa Ramos da Cruz
- Antônio Carlos Ligocki Campos
Study Design
- Type
- Randomized Controlled Trial (RCT)
- Sample size
- n = 31
- Population
- 31 patients subjected to RYGB surgery
- Methods
- randomized, double-blind, placebo-controlled clinical trial; probiotic group supplemented with a probiotic supplement (FloraVantage®) for 3 months after surgery or a placebo group; plasma metabonomics using NMR
- Blinding
- Double-blind
- Duration
- 3 months
Background/objective
There is evidence that metabolic profile changes after Roux-Y gastric bypass (RYGB), especially due to modifications in the gastrointestinal tract. In addition, previous studies have suggested that probiotics can modify the microbiome and produce metabolites important for metabolic health maintenance. In this sense, the aim of this study was to verify the influence of probiotic supplementation on the plasma metabolite profile after RYGB.Methods
This was a randomized, double-blind, placebo-controlled clinical trial conducted with 31 patients subjected to RYGB surgery, randomized in probiotic group that was supplemented with a probiotic supplement (FloraVantage®) for 3 months after surgery or a placebo group. Plasma metabonomics was performed using nuclear magnetic resonance (NMR) at the preoperative period (T0) and at 45-50 days (T1) and 90-95 days (T2) during the postoperative period/intervention.Results
Reductions in trimethylamine-N-oxide (TMAO) and alanine were observed in both groups, however this reduction was greater in the probiotic group (TMAO 13.82%, p = 0.01 and alanine 14.03%, p = 0.03) at T2. Additionally, β-hydroxybutyrate (BHB) levels increased 10.77% in the probiotic group (p = 0.03) compared to the placebo group at T2.Conclusion
Supplementation with Lactobacillus acidophilus NCFM and Bifidobacterium lactis Bi-07 was able to associate with significant differences in relevant plasma metabolites associated with improved metabolic health.