描述
Type I primary hyperoxaluria (Glycolicaciduria) is caused by mutation in the gene encoding alanine-glyoxylate aminotransferase (AGXT). AGXT normally catalyzes the reaction from L-serine and pyruvate to 3-hydroxypyruvate and L-alanine and the reaction from L-alanine and glyoxylate to pyruvate and glycine. A defect in AGXT results in accumulation of glycolic acid, glyoxylic acid, and oxalate in urine. Symptoms include hematuria, myocarditis, nephrocalcinosis, peripheral neuropathy, and renal failure.