Differences between live and heat-killed bifidobacteria in the regulation of immune function and the intestinal environment.
Benef Microbes
; 8(3): 463-472, 2017 May 30.
Article
em En
| MEDLINE
| ID: mdl-28441886
ABSTRACT
Probiotics are live microorganisms that confer a health benefit on the host, such as improvement of the intestinal environment, modulation of immune function and energy metabolism. Heat-killed probiotic strains have also been known to exhibit some physiological functions; however, the differences between live and heat-killed probiotics have not been well elucidated. In this study, we investigated the differences between live and heat-killed Bifidobacterium breve M-16V, a probiotic strain, in the regulation of immune function, intestinal metabolism and intestinal gene expression of the host using gnotobiotic mouse model and omics approaches. Both live and heat-killed cells of B. breve M-16V showed immune-modulating effects that suppressed pro-inflammatory cytokine production in spleen cells and affected intestinal metabolism; however, live cells exhibited a more remarkable effect in the regulation of intestinal metabolism and intestinal gene expression involved in nutrient metabolism. Our findings are valuable for considering the health benefits of live and heat-killed bacteria and the usefulness of different forms of probiotics.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Probióticos
/
Bifidobacterium breve
/
Intestinos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Benef Microbes
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Japão
País de publicação:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS