Lactobacillus gasseri: effects on mouse intestinal flora enzyme activity and isoflavonoids in the caecum and plasma
- 2004-11
- British Journal of Nutrition 92(5)
- M. Tamura
- M. Ohnishi-Kameyama
- K. Shinohara
- PubMed: 15533265
- DOI: 10.1079/BJN20041267
Abstract
The effects of Lactobacillus gasseri JCM 1131(T) on isoflavonoid levels within the caecum and plasma were assessed in adult mice. Male 5-week-old mice were fed an AIN 93M diet for 30 d. Two groups of mice were administered either L. gasseri JCM 1131(T) (the LGI group) or physiological saline solution (the control (CI) group) daily for 5 d before dissection. The plasma daidzein concentration was significantly higher in the LGI group, however, their plasma equol concentration was significantly less than in the CI group. The total amount of equol present as aglycone in the caecum was significantly greater in the CI group, but there was no significant difference in the total daidzein present as caecal aglycone. In an in vitro incubation of daidzein with the faecal flora of mice, the equol concentration was significantly higher in the CI group. The numbers of lactobacilli present were significantly higher in the LGI group. The present data suggest that the administration of L. gasseri is likely to influence the effect of isoflavonoids on the host via changes in the gastrointestinal environment.
Research Insights
Supplement | Health Outcome | Effect Type | Effect Size |
---|---|---|---|
Lactobacillus gasseri LG-36 | Increased Caecal Equol Concentration | Neutral | Moderate |
Lactobacillus gasseri LG-36 | Increased Lactobacilli Levels | Beneficial | Large |
Lactobacillus gasseri LG-36 | Increased Plasma Daidzein Levels | Beneficial | Moderate |
Lactobacillus gasseri LG-36 | Reduced Plasma Equol Concentration | Neutral | Small |
Lactobacillus gasseri LQ-36 | Increased Caecal Equol Aglycone Levels | Harmful | Large |
Lactobacillus gasseri LQ-36 | Increased Lactobacilli Levels | Beneficial | Large |
Lactobacillus gasseri LQ-36 | Increased Plasma Daidzein Levels | Beneficial | Moderate |
Lactobacillus gasseri LQ-36 | Reduced Plasma Equol Concentration | Neutral | Small |