STUDIES ON SULFATION FACTOR (SF) ACTIVITY OF HUMAN SERUM

Abstract

The relationship of serum sulfation factor (SF) activity to age has been studied in groups of healthy subjects of ages 1/2, 4, 8, 11, 15, 25 and 70 years. Serum SF activity was present in all subjects. The concentration of serum SF was lowest at 1/2 and 4 years, rising to comparable peaks at 8 and 15 years of age. The SF activity was the same at ages 11, 25 and 70 years.