CCL28 and Alzheimer disease: Serum CCL28 levels in patients with AD whether during flare (median = 1530; mean ± SD = 1590.4 ± 724.3 pg/ml) or quiescence (median = 1477; mean ± SD = 1575.2 ± 522.1 pg/ml) were significantly higher than the values in healthy children (median = 301; mean ± SD = 189.6 ± 92.8 pg/ml).