A compound attribute that is the ratio of amount of LRP chaperone MESD (human) in blood to amount of leukocyte elastase inhibitor (human) in blood. The trait is MESD/SERPINB1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2054532). Also known as: the ratio of amount of LRP chaperone MESD (human) in blood to amount of leukocyte elastase inhibitor (human) in blood.