A compound attribute that is the ratio of amount of neutrophil collagenase (human) in blood to amount of peptidoglycan recognition protein 1 (human) in blood. The trait is MMP8/PGLYRP1 protein level ratio in blood (OBA_2054575). Also known as: the ratio of amount of neutrophil collagenase (human) in blood to amount of peptidoglycan recognition protein 1 (human) in blood.