MRCEM Notes

Vitamin B6 (pyridoxine)

Vitamin B6 is a water soluble vitamin of the B complex group. It is converted to pyridoxal phosphate (PLP) which is a cofactor for many reactions including transamination, deamination and decarboxylation.

Causes of vitamin B6 deficiency
  • isoniazid therapy

Consequences of vitamin B6 deficiency
  • peripheral neuropathy
  • sideroblastic anemia

Diagram showing the biochemical role of vitamin B12 and vitamin B6
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