Clostridium butyricum MIYAIRI 588 alleviates periodontal bone loss in mice with diabetes mellitus

Abstract

The gut microbiota is a bridge linking periodontitis and systemic diseases, such as diabetes mellitus (DM). The probiotic Clostridium butyricum MIYAIRI 588 (CBM588) is reportedly an effective therapeutic approach for gut dysbiosis. Here, in a mouse model, we explored the therapeutic effect of CBM588 on periodontal bone destruction in DM and DM‐associated periodontitis (DMP), as well as the underlying mechanism. Micro‐computed tomography revealed that DM and DMP both aggravated periodontal bone destruction, which was alleviated by intragastric supplementation with CBM588. Moreover, 16S rRNA sequencing and untargeted metabolite analysis indicated that CBM588 ameliorated DMP‐triggered dysbiosis and led to reduced oxidative stress associated with elevated 4‐hydroxybenzenemethanol (4‐HBA) in serum. Furthermore, in vitro and in vivo experiments found that the metabolite 4‐HBA promoted nuclear factor erythroid 2‐related factor 2 (Nrf2) signaling activation and modulated the polarization of macrophages, thus ameliorating inflammatory bone destruction in DMP. Our study demonstrates the protective effects of CBM588 in DM‐induced mice, with and without ligature‐induced periodontitis. The mechanism involves regulation of the gut microbiota and restoration of the integrity of the gut barrier to alleviate oxidative damage by elevating serum 4‐HBA. This study suggests the possibility of CBM588 as a therapeutic adjuvant for periodontal treatment in diabetes patients.

Effects of Clostridium butyricum on Production Performance and Bone Development of Laying Hens

“…Calcium absorbed from food is deposited in the medullary bone, and during egg laying the calcium is reabsorbed and later deposited on the eggshell [11]. Several studies have shown the beneficial effects of CB on bone health in mice [12,13]. Tibia is an effective indicator for evaluating the bone size of poultry [14].…”

“…Xiang's research found that CB reduced the feed intake of Lohmann pink laying hens (180 days), improved the feed conversion ratio, eggshell strength, and albumen index, and benefitted gut health [11]. Zhan's research found that CB improved egg production and eggshell strength and benefitted the immune function and antioxidant capacity of Jinghong-1 strain laying hens (336 days) [12]. There are also studies showing that CB can reduce fat deposition in the livers of Hy-line Brown laying hens (420 days) [13] and lower the production of sandpaper-shelled eggs in Hy-line Brown laying hens (450 days) [14].…”