Ries et al. reported that patients with NP-C showed a mean plasma ChT activity of 856 ± 721 nmol/mL*h compared with 55 ± 35.6 nmol/mL*h in individuals with miscellaneous other diseases, and 13,761 ± 10,348 nmol/mL*h in patients with GD [15]. The gene discussed is SLC5A7; the disease is nasopharyngeal carcinoma.