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| molybdenum cofactor deficiency ： ウィキペディア英語版 |
molybdenum cofactor deficiency
Molybdenum cofactor deficiency is a rare human disease in which the absence of molybdenum cofactor leads to accumulation of toxic levels of sulphite and neurological damage. Usually this leads to death within months of birth, due to the lack of active sulfite oxidase. Furthermore, a mutational block in molybdenum cofactor biosynthesis causes absence of enzyme activity of xanthine dehydrogenase/oxidase and aldehyde oxidase.
When caused by a mutation in the MOCS1 gene it is the type A variant. It can also be caused by a mutation in the MOCS2 gene or the GEPH gene. As of 2010, there had been approximately 132 reported cases.
It should not be confused with molybdenum deficiency.
==Diagnosis==
Diagnosis of Molybdenum cofactor deficiency includes early seizures, low blood levels of uric acid, and high levels of sulphite, xanthine, and uric acid in urine. Additionally, the disease produces characteristic MRI images that can aid in diagnosis.〔http://www.imoa.info/HSE/environmental_data/biology/molybdenum_cofactor.html〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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