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Methyltransferase activity in human lens regions as a function of age. Enzyme activity was measured in the outer cortex (newly synthesized) region and the centre (nucleus) of human lenses. (ND = not detected).
| Age | Outer cortex (nmol/min/mg) | Nucleus (nmol/min/mg) |
|---|---|---|
| 16 | 11.3 | 3.4 |
| 19 | 7.3 | 5.7 |
| 30 | 3.9 | 1.4 |
| 32 | 4.4 | 3.1 |
| 54 | 1.8 | ND |
| 61 | 1.2 | ND |
| 74 | 10.5 | ND |
