Journal of Practical Hepatology ›› 2023, Vol. 26 ›› Issue (6): 819-822.doi: 10.3969/j.issn.1672-5069.2023.06.013

• Non-alcoholic fatty liver diseases • Previous Articles     Next Articles

Changes of intestinal flora as well as serum interliukin-17 and interferon-γ levels in patients with nonalcoholic fatty liver diseases

Hou Yilin, Cao Fenghua, Ji Xiaoyan, et al   

  1. Department of Gastroenterology, Integrated Traditional Chinese and Western Medicine Hospital, Zhenjiang 212000, Jiangsu Province, China
  • Received:2022-07-05 Online:2023-11-10 Published:2023-11-20

Abstract: Objective The purpose of this study was to explore the changes of intestinal flora as well as serum interleukin-17 (IL-17) and interferon-gamma (INF-γ) levels in patients with nonalcoholic fatty liver diseases (NAFLD). Methods 102 patients with NAFLD, including simple fatty liver (SFL) in 64 cases and non-alcoholic steatohepatitis (NASH) in 38 cases, and 48 healthy individuals were encountered in our hospital between January 2019 and January 2022. The intestinal flora and serum IL-17 and INF-γ levels were determined and compared. Results The fecal lactobacilli, bifidobacteria numbers and the bifidobacteria/ enterococcus (B/E) ratio in patients with NAFLD were (8.9±0.3)lg CFU/g,(8.6±0.3)lg CFU/g and (0.9±0.2), all significantly lower than [(9.9±0.4)lg CFU/g, (9.7±0.4)lg CFU/g and (1.1±0.3), respectively, P<0.05], while the fecal enterococcus and enterobacter numbers were (8.2±0.3)lg CFU/g and (9.3±0.4)lg CFU/g, both significantly higher than [(7.4±0.2)lg CFU/g and (8.4±0.3)lg CFU/g, respectively, P<0.05] in healthy persons; serum INF-γ level was (172.6±28.7)ng/L, much lower than [(293.7±48.5)ng/L, P<0.05], while serum IL-17 level was (46.9±8.2)ng/L, much higher than [(13.0±2.4)ng/L, P<0.05] in healthy individuals; the fecal lactobacilli, bifidobacteria numbers and the B/E ratio in patients with NASH were (8.2±0.3)lg CFU/g,(7.9±0.3)lg CFU/g and (0.9±0.2), all significantly lower than [(9.3±0.4)lg CFU/g, (8.9±0.4)lg CFU/g and (1.1±0.3), respectively, P<0.05], while the fecal enterococcus and enterobacter numbers were(8.6±0.3)lg CFU/g and (9.5±0.4)lg CFU/g, both significantly higher than [(7.7±0.2)lg CFU/g and (8.4±0.3)lg CFU/g, respectively, P<0.05] in patients with SFL; serum IL-17 level was (55.4±9.7)ng/L, much higher than [(41.3±7.2)ng/L, P<0.05], while serum INF-γ level was (146.9±21.6)ng/L, much lower than [(212.6±36.4)ng/L, P<0.05] in patients with SFL. Conclusion The intestinal flora, and serum IL-17 and INF-γ levels change abnormally in patients with NAFLD, which might be related to the liver injury, and needs further investigation.

Key words: Nonalcoholic fatty liver diseases, Nonalcoholic steatohepatitis, Intestinal flora, Interleukin-17, Interferon-γ