Title : Genetic defects of thiamine transport and metabolism: A review of clinical phenotypes, genetics, and functional studies.

Pub. Date : 2019 Jul

PMID : 31095747






5 Functional Relationships(s)
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1 Currently, four genetic defects have been described causing impairment of thiamine transport and metabolism: SLC19A2 dysfunction leads to diabetes mellitus, megaloblastic anemia and sensory-neural hearing loss, whereas SLC19A3, SLC25A19, and TPK1-related disorders result in recurrent encephalopathy, basal ganglia necrosis, generalized dystonia, severe disability, and early death. Thiamine solute carrier family 19 member 3 Homo sapiens
2 SLC19A3 patients present a profound decrease of free-thiamine in cerebrospinal fluid (CSF) and fibroblasts. Thiamine solute carrier family 19 member 3 Homo sapiens
3 In a significant number of patients with SLC19A3, thiamine improves clinical outcome and survival, and prevents further metabolic crisis. Thiamine solute carrier family 19 member 3 Homo sapiens
4 Moreover, thiamine supplementation leads to normal concentrations of free-thiamine in the CSF of SLC19A3 patients. Thiamine solute carrier family 19 member 3 Homo sapiens
5 Moreover, thiamine supplementation leads to normal concentrations of free-thiamine in the CSF of SLC19A3 patients. Thiamine solute carrier family 19 member 3 Homo sapiens