APP/NID2 protein level ratio in blood (OBA_2053916) can be described as follows. A compound attribute that is the ratio of amount of amyloid-beta precursor protein (human) in blood to amount of nidogen-2 (human) in blood. Also known as: the ratio of amount of amyloid-beta precursor protein (human) in blood to amount of nidogen-2 (human) in blood.