Figure 1. Chemical structure of uric acid.
Figure 2 shows uric acid levels found in the blood. Normal people have levels that fall in the blue zone. In general, children have lower levels than adults, so the blue zone changes with age. The yellow circles show serum uric acid levels in individuals with Lesch-Nyhan disease. Most of these are outside of the normal range, though some are only a little bit high.
Figure 2. Blood uric acid levels. Healthy people have levels that fall in the gray zone. The yellow circles show serum uric acid levels in individuals with Lesch-Nyhan disease.
Figure 3. Urine uric acid levels. Healthy people have levels that fall in the blue zone. The yellow circles show urine uric acid levels in individuals with Lesch-Nyhan disease.