The serum TSLP levels were determined by using ELISA or multiplex assays; in both cases, an effect of higher TSLP levels was observed in subjects with AD compared to in control participants (ELISA method: SMD = 1.21, 95% CI 0.55–1.87; and multiplex immunoassay method: SMD = 4.68, 95% CI 1.61–7.76). Here, TSLP is linked to Alzheimer disease.