Answer to Question #109716 in Biochemistry for kylie

Question #109716
State which vitamin is deficient in the following scenarios?
7.2.1 A 43-year-old alcoholic who also suffered from memory loss is found to have decreased amounts of myelin around the axons with abnormal odd chain fatty acid breakdown.
1
Expert's answer
2020-04-22T07:44:43-0400

Vitamin B12 (cobalamin).

Vitamin B12 deficiency is often observed in alcoholics. Loss of myelin is also observed in patients with vitamin B12 deficiency. Cobalamin is involved in the myelination of axons and is a cofactor of methylmalonyl-CoA mutase, an enzyme involved in the oxidation of odd-carbon fatty acids. As a result, vitamin B12 deficiency affects the metabolic processes leading to the corresponding disorders.


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