CRP and Alzheimer disease: CRP levels are elevated in allergic contact dermatitis, Atopic Dermatitis (AD) can also be accompanied by elevated CRP levels (approx. 7 mg/L), with the authors of the study concluding that it has potential use as a marker for disease severity in moderate to severe AD patients, and also, CRP may be used as a novel inflammatory marker in seborrheic dermatitis [454,455,456].