Protective effect of lactobacillus fermentum LA12 in an alcohol-induced rat model of alcoholic steatohepatitis

Byoung Kook Kim, In Ock Lee, Pei Lei Tan, Ju Young Eor, Jae Kwan Hwang, Sae Hun Kim

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Alcoholic liver disease (ALD) is a complex multifaceted disease that involves oxidative stress and inflammation as the key mediators. Despite decades of intensive research, there are no FDA-approved therapies, and/or no effective cure is yet available. Probiotics have received increasing attention in the past few years due to their well-documented gastrointestinal healthpromoting effects. Interestingly, emerging studies have suggested that certain probiotics may offer benefits beyond the gut. Lactobacillus fermentum LA12 has been previously demonstrated to play a role in inflammatory-related disease. However, the possible protective effect of L. fermentum LA12 on ALD still remain to be explored. Thus, the aim of this study was to evaluate the possible protective effect of L. fermentum LA12 on alcohol-induced gut barrier dysfunction and liver damage in a rat model of alcoholic steatohepatitis (ASH). Daily oral administration of L. fermentum LA12 in rat model of ASH for four weeks was shown to significantly reduced intestinal nitric oxide production and hyperpermeability. Moreover, small intestinal histological- and qRT-PCR analysis further revealed that L. fermentum LA12 treatment was capable of up-regulating the mRNA expression levels of tight junction proteins, thereby stimulating the restitution of barrier structure and function. Serum and hepatic analyses also revealed that the restoration of epithelial barrier function may prevent the leakage of endotoxin into the blood, subsequently improve liver function and hepatic steatosis in the L. fermentum LA12-treated rats. Altogether, results in this study suggest that L. fermentum LA12 may be used as a dietary adjunct for the prevention and treatment of ASH.

Original languageEnglish
Pages (from-to)931-939
Number of pages9
JournalKorean Journal for Food Science of Animal Resources
Issue number6
Publication statusPublished - 2017 Dec

Bibliographical note

Funding Information:
This work was financially supported by the grants funded by the Chong Kun Dang Bio and Korea University.

Publisher Copyright:
© 2017 Korean Society for Food Science of Animal Resources.


  • Alcoholic steatohepatitis
  • Inflammation
  • Intestinal permeability
  • Lactobacillus fermentum LA12
  • Liver health
  • Oxidative stress
  • Probiotics

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology


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