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Abstract: Objective: In this study, we investigated the changes in peripheral blood inflammatory factors and intestinal flora in )%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>acquired immune deficiency syndrome (AIDS) and human immunodeficiency virus (HIV)-positive individuals (AIDS/HIV patients), and explored the relationships among intestinal flora, peripheral blood inflammatory factors, and CD4⁺ T lymphocytes. Methods: Thirty blood and stool samples from an AIDS group and a control group were collected. The levels of tumor necrosis factor-α; (TNF-α;) and interleukin-6 (IL-6) were determined by enzyme-linked immunosorbent assay (ELISA), and the number of CD4⁺ T lymphocytes by a FACSCount automated instrument. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the messenger RNA (mRNA) levels of Bifidobacterium, Lactobacillus, Escherichia coli, Enterococcus faecalis, and Enterococcus faecium. Correlations among intestinal flora, inflammatory factor levels, and CD4⁺ T lymphocyte values were evaluated using the Spearman correlation coefficient. Results: The levels of TNF-α and IL-6 in the AIDS group were higher than those in the control group, while the number of CD4⁺ T lymphocytes was lower. The amounts of Bifidobacterium and Lactobacillus in the AIDS group were significantly lower than those in control group, while the amounts of E. coli, E. faecalis, and E. faecium were much higher. The amounts of Bifidobacterium and Lactobacillus were negatively correlated with the content of TNF-α and IL-6 and the CD4⁺ T lymphocyte count, while those correlations were reversed for E. coli, E. faecalis, and E. faecium. Conclusions: The intestinal microbiota of AIDS/HIV patients were disordered, and there was a correlation between the amount of intestinal flora and the number of CD4⁺ T lymphocytes and the levels of TNF-α and IL-6.

AIDS和HIV阳性个体外周血炎症因子(TNF-α和IL-6)和肠道菌群的变化研究

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