Biochemistry 4th Edition by Christopher Mathews,Kensal van Holde, Dean Appling, Spencer Anthony Cahill

Exercise 1

A clinical lest sometimes used to diagnose folait deficiency orB 12 deficiency is a histidine tolerance test. where one injects a large dose of histidine into the bloodstream and then carries out a series of biochemical determinations. What histidine metabolite would you expect to accumulate in a folate- or B 12 -deficient patient, and why