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. 2024 Sep 16;15:1437869. doi: 10.3389/fimmu.2024.1437869

Figure 1.

Figure 1

Assumptions and design of the bidirectional and mediation MR analyses. Firstly, a two-sample bidirectional MR was performed to investigate the causal relationships between Gut microbiota,Immune cells,Serum metabolites (exposure) and Lymphoid leukaemia,ALL,CLL (outcome). Secondly, Serum metabolites (mediator) were selected for subsequent mediation analyses. Finally, a two-step MR analysis was conducted to detect potential mediating metabolites (Step1, the effect of Immune cells on Serum metabolites; Step2, the effect of Serum metabolites on Lymphoid leukaemia,ALL,CLL).