Drayna says therapies to replace enzymes that cause the diseases have been developed to treat half a dozen of these metabolic disorders.

VOA: standard.2010.02.11

Dr.Damiano says the system restores, as nearly as possible, the body's delicate metabolic balance.

VOA: standard.2010.04.15

These genes are involved in a number of inherited metabolic disorders, including Tay Sachs, a rare,incurable and usually fatal disease that causes the destruction of nerve cells in young children.

VOA: standard.2010.02.11