A strong association exists between the high-fat diet (HFD) and the incidence of obesity, hyperlipidemia and cardiovascular disease, affecting an increasing number of individuals. More and more research has shown that probiotics and gut microbiota play important roles in dietary absorption, metabolism and host healthy. This study aims to evaluate the therapeutic effects and the underlying mechanisms of Lactiplantibacillus plantarum TCCC11824 (CGMCC 8198) on hyperlipidemia and obesity in mice and clinical. Fristly, there was a dose-dependent improvement in HFD-induced hyperlipidemia and obesity in mice which had been treated with L. plantarum TCCC11824 for 5 weeks thus restoring the balance of the gut microbiota. Furthermore, it showed that cell lysate of L. plantarum TCCC11824 could directly exhibit protective effects on the hepatocytes steatosis induced by oleic acid, and regulate the expression of HMGCR by inhibiting NF-κB pathway. Importantly, L.plantarum TCCC11824 ameliorated the expression of indicators of hyperlipidemia and inhibited the synthesis of SCFAs (short-chain fatty acids), as shown by blood and fecal tests in hyperlipidemic patients. In summary, L. plantarum TCCC11824 exerts anti-hyperlipidemic and anti-obesity effects through the regulation of HMGCR via NF-κB and modulating gut microbiota, indicating its potential as a dietary supplement for the treatment of hyperlipidemia and obesity.
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