Probiotic Characteristics of Lactiplantibacillus Plantarum N-1 and Its Cholesterol-Lowering Effect in Hypercholesterolemic Rats

Lei Tian, Rongmei Liu, Zhiwei Zhou, Xiaofang Xu, Su Feng, Ariel Kushmaro, Robert S. Marks, Dan Wang, Qun Sun

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the probiotic potential and treatment effects of Lactiplantibacillus plantarum N-1 in hypercholesterolemic rats were investigated, and the possible regulatory mechanisms of lipid metabolism via short-chain fatty acids (SCFAs) and 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase were elucidated. The strain N-1 displayed probiotic properties of antioxidant capacity, adhesion to Caco-2 cells, susceptibility to antibiotics in vitro. The results in animal study showed that the total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels in serum and TC in liver declined significantly in both N-1 and simvastatin (Sta) treatment groups compared to the control (P < 0.05), and the extent of these decreases were similar between them. The expression of the HMG-CoA gene in the N-1 group was downregulated significantly by 31.18% compared to the control (P < 0.01), and the contents of butyrate and valerate in N-1 groups were significantly higher than those in both model and Sta group (P < 0.05). Thus, promoting the production of the intestinal SCFAs and inhibiting the expression of HMG-CoA reductase by L. plantarum N-1 may contribute to the improved lipid metabolism and thus lowering cholesterol level in rats. Our investigation indicated that L. plantarum N-1 has the potential to be developed into a functional food supplement for hypercholesterolemia treatment.

Original languageEnglish
Pages (from-to)337-348
Number of pages12
JournalProbiotics and Antimicrobial Proteins
Volume14
Issue number2
DOIs
StatePublished - 1 Apr 2022

Keywords

  • 3-Hydroxy-3-methylglutaryl coenzyme A
  • Cholesterol-lowering
  • Lactiplantibacillus plantarum
  • Probiotic
  • Short-chain fatty acids

ASJC Scopus subject areas

  • Microbiology
  • Molecular Medicine
  • Molecular Biology

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