Abstract
The plasma protein pattern of patients with uncomplicated essential hypertension showed only slight variations from the normal while that of patients with severely malignant hypertension showed marked shifts. The fibrinogen and ß-globulins were usually elevated beyond the normal range and the albumin decreased. In less severely malignant hypertension, the changes were less marked. In dogs with experimental renal hypertension, the γ-globulin level was greatly elevated, and in one animal exhibiting the malignant syndrome ß-globulin and fibrinogen were also increased. Elevation of ß-globulin seems in some manner associated with the occurrence of severe vascular disease.