Cited by 98Probiotics and Fermented FoodsGut microbiota and healthInfant Nutrition and Health

Improvement of the human intestinal flora by ingestion of the probiotic strain Lactobacillus johnsonii La1

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Yamano, Toshihiko, Iino, Hisakazu, Takada, Mamiko, Blum, Stephanie, Rochat, Florence, Fukushima, Yoichi·2006·British Journal of Nutrition

Abstract

To exert beneficial effects for the host, for example, improving the intestinal microflora, a probiotic must reach the intestine as a viable strain. These properties must be demonstrated by in vitro as well as in vivo methods. However, only a few well-designed human clinical studies have shown these properties.Lactobacillus johnsonii La1 has been shown to give many beneficial effects for the host, but it is unclear whether a viable strain of L. johnsonii La1 has the effect of improving host intestinal microflora. In the present study, a randomised double-blind placebo-controlled cross-over trial was conducted to elucidate the effect of L. johnsonii La1 on human intestinal microflora. Twenty-two young healthy Japanese women were randomly divided into two groups, and either received fermented milk with L. johnsonii La1 or a fermented milk without L. johnsonii La1 (placebo) daily for 21d. Consumption of the fermented milk: (a) increased total Bifidobacterium and Lactobacillus, and decreased lecithinase-positive Clostridium in the faeces; (b) increased the faecal lactic acid concentrations; (c) decreased the faecal pH; (d) increased the defecation frequency. These changes were stronger than those observed with the placebo.L. johnsonii La1 was identified in all subjects only after the consumption of the fermented milk. These results suggest that L. johnsonii La1 can contribute to improve intestinal microflora with probiotic properties.

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Authors
Yamano, T., Iino, H., Takada, M., Blum, S., Rochat, F., & Fukushima, Y.
Affiliations
  • Showa Women's University (JP)
  • Nestlé (Switzerland) (CH)
Corresponding author
Fukushima, Yoichi
Venue
British Journal of Nutrition
Published
2006-02
Volume
95
Issue
2
Pages
303-312
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
OpenAlex
W2141565032
Cited by
98
References
58
Citations by year
2026: 3 · 2025: 5 · 2024: 1 · 2023: 6 · 2022: 5 · 2021: 3 · 2020: 2 · 2019: 7 · 2018: 1 · 2017: 2 · 2015: 4 · 2014: 6 · 2013: 11 · 2012: 6
FWCI
14.49
Type
journal article
Language
en
Open access
Locations
  • British Journal Of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • reroDoc Digital Library (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
Keywords
probiotics, gut microbiota, fermented milk, fecal pH, stool frequency, healthy women
MeSH terms
Adult, Bacterial Adhesion, Bifidobacterium, Clostridium, Culture Media, Defecation, Double-Blind Method, Feces, Female, Humans, Hydrogen-Ion Concentration, Intestines, Lactobacillus, Cross-Over Studies, Caco-2 Cells, Lactic Acid, Probiotics, Cultured Milk Products

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