Association between Apolipoprotein B (ApoB) and suicidal ideation: a cross-sectional study and Mendelian randomization analysis

The present study found a significant positive association between serum ApoB levels and suicidal ideation, especially among smokers. MR analysis failed to provide causal evidence of ApoB on suicidal ideation. More research is needed to clarify the potential role of ApoB in the development of suicidal ideation.