SV2A and Alzheimer disease: In addition, it has been found that LEV increased SV2A levels in the hippocampal tissue of rats with lipopolysaccharide (LPS)‐induced neuroinflammation (Kasatkina et al. 2022), so the increased cognitive level of SV2A overexpressing AD mice detected in the present study may be one of the molecular mechanisms by which LEV improves cognitive level in AD.