Supplementation of Bacillus sp. DU-106 reduces hypercholesterolemia and ameliorates gut dysbiosis in high-fat diet rats.
Appl Microbiol Biotechnol
; 105(1): 287-299, 2021 Jan.
Article
in En
| MEDLINE
| ID: mdl-33128611
ABSTRACT
Gut microbiota modulation by a probiotic is a novel therapy for hypercholesterolemia mitigation. This study initially investigated the potential hypocholesterolemic effect of Bacillus sp. DU-106 in hypercholesterolemic rats and explored its potential relation with gut microbiota. Sprague-Dawley rats received a high-fat diet, or a high-fat diet supplemented with 7.5 × 109 and 1.5 × 1010 CFU/kg bw/day Bacillus sp. DU-106 (low-dose and high-dose groups). At the end of 9 weeks, Bacillus sp. DU-106 treatment significantly decreased the body weight, liver index, and total cholesterol. 16S rRNA sequencing showed that Bacillus sp. DU-106 intervention significantly increased bacterial richness and particularly increased the genus abundance of Turicibacter, Acinetobacter, Brevundimonas, and Bacillus and significantly decreased the abundance of Ralstonia. Metabolomic data further indicated that the supplementation of Bacillus sp. DU-106 remarkably changed the gut metabolic profiles of hypercholesterolemic rats and, in particular, elevated the metabolites of indole-3-acetate, methylsuccinic acid, creatine, glutamic acid, threonine, lysine, ascorbic acid, and pyridoxamine. Spearman's correlation analysis showed the close relation between the different genera and metabolites. In conclusion, Bacillus sp. DU-106 supplement ameliorated high-fat diet-induced hypercholesterolemia and showed potential probiotic benefits for the intestine. KEY POINTS ⢠A novel potential probiotic Bacillus sp. DU-106 ameliorated hypercholesterolemia in rats. ⢠Bacillus sp. DU-106 supplement regulated gut microbiome structure and richness. ⢠Bacillus sp. DU-106 supplement changed metabolic profiles in high-fat diet rats. ⢠Significant correlations were observed between differential genera and metabolites.
Key words
Full text:
1
Collection:
01-internacional
Health context:
3_ND
Database:
MEDLINE
Main subject:
Bacillus
/
Gastrointestinal Microbiome
/
Hypercholesterolemia
Limits:
Animals
Language:
En
Journal:
Appl Microbiol Biotechnol
Year:
2021
Document type:
Article