[Aging as inversion of growth: reaction of uric acid (author's transl)]

Independent from sex, the concentration of uric acid in serum decreases slowly in normal individuals from 55--58 years on. The older is an individual, the lower is the concentration of uric acid. This phenomenon is the consequence of a restriction of the synthesis of nucleic acids, parallel to ageing. Results suggests that the concentration of uric acids can be considered to be parameters of ageing.