1. Homocystinuria due to CBS deficiency is a special type of hyperhomocysteinemia.2. More recently, Homocystinuria was suggested as a possible diagnosis. 3. A total of 131 different homocystinuria -causing mutations have been identified. 4. Homocystinuria is even mentioned in Changeling # Neurological _ differences.5. The result was aggressive and sometimes lethal cardiovascular disease in children with homocystinuria . 6. He knew that patients with homocystinuria had genetic defects that disabled these enzymes. 7. Homocystinuria is a disease characterized by high urine and plasma levels of homocysteine.8. Patients suffering from homocystinuria have Marfan habitus. 9. Since just 1 in 200, 000 Americans has homocystinuria , cases are few and far between. 10. In rare cases, high homocysteine is caused by a genetic problem, a condition called homocystinuria .