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Results 1 - 1 of 1 for NIACIN
  1. Hartnup disease 
    ... needed to produce vitamin B3 (also known as niacin).SLC6A19 gene mutations result in the production of ... are related to a deficiency of tryptophan and niacin, specifically. SLC6A19 This condition is inherited in an ...
    https://medlineplus.gov/genetics/condition/hartnup-disease - Genetics