LEP and Alzheimer disease: Serum leptin was significantly higher in the whole AD group compared to that in healthy controls (p = 0.02) (Table 2), with no differences depending on eczema severity (mild eczema median: 10,701.7 ng/mL, min–max: 1914.1–35,158.3 ng/mL; severe eczema median: 8392.7 ng/mL, min–max: 2000.1–76,299.8 ng/mL) (p = 0.064).