Abstract

Dogs diagnosed with chronic enteropathy (CE) or small-cell lymphoma (SCL) exhibit marked differences in faecal microbiota and organic acid profiles compared with healthy dogs, as well as immune abnormalities in intestinal mucosal tissue. However, few studies have analysed trace organic acids, such as succinic acid, which have been suggested to be associated with IBD in humans. Therefore, in this study, we compared the faecal microbiota and organic acid profiles as well as serum inflammatory markers between dogs with disease (n = 11; 6 with CE and 5 with SCL) and healthy controls (n = 16). We also performed machine learning and correlation analysis to obtain more detailed insights into the characteristics of affected dogs. These results revealed that dogs with CE and SCL had lower levels of Erysipelotrichaceae (e.g. Turicibacter and Allobaculum), exhibited abnormalities in the succinic acid metabolism (i.e. succinic acid accumulation and decreased levels of Phascolarctobacterium as succinic acid-utilising bacteria) and increased levels of pathobiont bacteria such as Escherichia-Shigella. Additionally, the presence of Dubosiella was significantly negatively correlated with Canine Inflammatory Bowel Disease Activity Index scores. These findings are expected to aid the development of microbiome-based medications and/or supplements, although further verification is needed.

Details

Title
Characterization of faecal microbiota and serum inflammatory markers in dogs diagnosed with chronic enteropathy or small-cell lymphoma: a pilot study
Author
Kaga, Chiaki 1 ; Kakiyama, Sayaka 1 ; Hokkyo, Atsuko 1 ; Ogata, Yuzuru 1 ; Shibata, Junko 1 ; Nagahara, Takuro 2 ; Nakazawa, Maho 3 ; Nakagawa, Taisuke 4 ; Tsujimoto, Hajime 2 ; Chambers, James K. 5 ; Uchida, Kazuyuki 5 ; Matsumoto, Satoshi 1 ; Kobayashi, Toshihide 1 ; Tomiyasu, Hirotaka 2 ; Mizusawa, Naomi 1 

 Yakult Central Institute, Tokyo, Japan (GRID:grid.433815.8) (ISNI:0000 0004 0642 4437) 
 The University of Tokyo, Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2169 1048) 
 The University of Tokyo, Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2169 1048) 
 The University of Tokyo, Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X) 
 The University of Tokyo, Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2169 1048) 
Pages
19387
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3095332179
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.