Bifidobacterium adolescentis protects from the development of nonalcoholic steatohepatitis in a mouse model.
To investigate the hypothesis that an oral supplementation of Bifidobacterium adolescentis protects against a diet-induced nonalcoholic steatohepatitis in a mouse model, C57BL/6 mice were fed either a Western-style or a control diet±tap water fortified with B. adolescentis (5×10(7) cfu/ml) ad libitum for 12 weeks. Mice fed a Western-style diet gained significantly more weight than mice fed a control diet and developed a mild steatohepatitis. Western-style diet fed groups concomitantly treated with B. adolescentis had significantly decreased liver damage, whereas portal endotoxin levels and toll-like receptor-4 protein levels as well as myeloid differentiation factor 88 mRNA were increased in livers of both Western-style diet fed groups. The protective effects of the B. adolescentis were associated with a significant attenuation of the formation of reactive oxygen species, activation of nuclear factor κB (NFκB) and induction of markers of inflammation in the liver. Taken together, our data suggest that an oral supplementation of the B. adolescentis attenuates diet-induced steatohepatitis, and this effect is associated with prevention from lipid peroxidation, NFκB activation and finally inflammation in the liver.
Department of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70599 Stuttgart, Germany.
Astrid
A
Reichold
Department of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70599 Stuttgart, Germany.
Sibylle A
SA
Brenner
Department of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70599 Stuttgart, Germany.
Astrid
A
Spruss
Department of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70599 Stuttgart, Germany.
Karin
K
Förster-Fromme
Department of Model systems of molecular nutritional sciences, Institute of Nutrition, University of Jena, Dornburgerstr. 25, 07743 Jena, Germany.
Ina
I
Bergheim
Department of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70599 Stuttgart, Germany. Electronic address: bischoff.stephan@uni-hohenheim.de.
Stephan C
SC
Bischoff
D000818:Animals; D001483:Base Sequence; D001644:Bifidobacterium / Q000502:physiology*; D017931:DNA Primers; D004195:Disease Models, Animal; D005234:Fatty Liver / Q000517:prevention & control*; D015227:Lipid Peroxidation; D051379:Mice; D008810:Mice, Inbred C57BL
D017931:DNA Primers
Nonalcoholic steatohepatitis; Obesity; Probiotics; Toll-like receptor 4