KROK 1 2021 – Question 103 · KROK (Medicine) · Biological Chemistry

A newborn had seizures that stopped after vitamin B₆ was prescribed. This effect was most likely observed, because vitamin B₆ takes part in formation of:

  1. A. Gamma-aminobutyric acid (GABA)
  2. B. Heme
  3. C. Histamine
  4. D. Non-essential amino acids
  5. E. Nicotinamide
Hint

Pyridoxal phosphate is the coenzyme of amino acid decarboxylases; consider which of the listed products would calm, rather than excite, neurons in a newborn with seizures.

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