Diabetes research and clinical practice · 2020
The genus Sutterella is a potential contributor to glucose metabolism improvement after Roux-en-Y gastric bypass surgery in T2D.
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Wang Chen, Zhang Hong, Liu Haijun, Zhang Hongwei, Bao Yuqian, Di Jianzhong, Hu Cheng
Аннотация
BACKGROUND: Alterations in gut microbiota have been associated with improvements in blood glucose due to bariatric surgery.
OBJECTIVES: Our aim is to identify specific gut microbiota that contribute to the remission of T2D after RYGB and SG.
METHODS: Rats fed a high-fat diet (HFD) were administered a low dose of streptozotocin as T2D models; next, their caecum content was collected 8 weeks after RYGB and SG. We also used case-control of gut microbial profiles of T2D patients and healthy people by collecting the mucosal-luminal interface from the ascending colon. Samples were profiled by 16S rRNA gene sequencing.
RESULTS: RYGB and SG reduced weight and improved glucose and insulin tolerance. Principal coordinate analysis showed that SG and, especially, RYGB cause changes in the composition of gut microbiota. We found that family Alcaligenaceae (genus Sutterella) was significantly decreased in the ascending colon of patients with T2D and increased after RYGB surgery in the caecum of T2D rats as shown by a linear discriminant analysis effect size (LEfSe) analysis, with no significant changes after SG. This result might benefit the improvement of glycometabolism.
CONCLUSIONS: RYGB can significantly reduce weight, improve glycometabolism and change the composition of the gut microbiota. Sutterella may have beneficial effects on glycometabolism in T2D patients after RYGB.
OBJECTIVES: Our aim is to identify specific gut microbiota that contribute to the remission of T2D after RYGB and SG.
METHODS: Rats fed a high-fat diet (HFD) were administered a low dose of streptozotocin as T2D models; next, their caecum content was collected 8 weeks after RYGB and SG. We also used case-control of gut microbial profiles of T2D patients and healthy people by collecting the mucosal-luminal interface from the ascending colon. Samples were profiled by 16S rRNA gene sequencing.
RESULTS: RYGB and SG reduced weight and improved glucose and insulin tolerance. Principal coordinate analysis showed that SG and, especially, RYGB cause changes in the composition of gut microbiota. We found that family Alcaligenaceae (genus Sutterella) was significantly decreased in the ascending colon of patients with T2D and increased after RYGB surgery in the caecum of T2D rats as shown by a linear discriminant analysis effect size (LEfSe) analysis, with no significant changes after SG. This result might benefit the improvement of glycometabolism.
CONCLUSIONS: RYGB can significantly reduce weight, improve glycometabolism and change the composition of the gut microbiota. Sutterella may have beneficial effects on glycometabolism in T2D patients after RYGB.