KROK 1 Stomatology 2012 – Question 122 · KROK (Dentistry)
On examination a male patient was diagnosed with acute radiation disease. Laboratory examination revealed abrupt decrease in serotonin found in blood platelets. A likely cause of decrease in serotonin concentration would be metabolic imbalance of the following substance:
- A. Phenylalanine
- B. 5-oxytryptophane
- C. Tyrosine
- D. Histidine
- E. Serine
Hint
Trace the synthesis pathway of serotonin and identify the immediate precursor that is decarboxylated to form it.
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