Arakawa’s syndrome II

Below you will find more information about Arakawa’s syndrome II from Medigest. If you believe that you are suffering from any of the symptoms of Arakawa’s syndrome II it is important that you obtain an accurate diagnosis from a medical professional to ensure that you obtain the correct medication or treatment for your condition. There are medical conditions that carry similar symptoms associated with Arakawa’s syndrome II and therefore the information provided by Medigest is offered as a guideline only and should never be used in preference to seeking professional medical advice. The information relating to Arakawa’s syndrome II comes from a third party source and Medigest will not be held liable for any inaccuracies relating to the information shown.


An error of metabolism that is inherent is known as Arakawa's syndrome II. A hereditary disorder caused by the absence of the enzyme tetrahydrofolate-methyltransferase. People who has this disease cannot properly digest methylcobalamin a kind of Vitamin B12. Other terms for this disease are Methionine synthase deficiency, N5-methylhomocysteine transferase deficiency and Tetrahydrofolate-methyltransferase deficiency syndrome.


According to Office of Rare Diseases (ORD) of the National Institutes of Health (NIH) Arakawa's syndrome is listed as a "rare disorder" which indicates that it affects less than 200,000 people in the US.

Symptoms and Signs

Here is a list of the known symptoms of Arakawa's Syndrome II: Megaloblastic anemia - reduced production of red blood because of the lack of vitamin B12 absorption, a rare blood disorder. Delay in physical and mental development Deficit in Methionine synthase Scoliosis - a state that presents lateral curvature of the spine. Retarded growth - growth rate is not enough for the normal rate. Fragile muscle tone liver is bloated spleen is bloated Seizures - unrestrained physical movements. Complications of Arakawa's syndrome II Production of red cell is reduced Learning disability - several developmental troubles hindering learning. Macrocytosis (erythrocyte) - unusual large red blood cell taking place primarily in anemias also referred to as megalocyte.

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