Abstract
To analyze the result and follow-up data of screening for newborn amino acid metabolic disorders in Zhejiang province. A total of 1 861 262 newborns were screened for amino acid metabolic disorders during January 2009 and December 2016 in Zhejiang province. The screening results and the follow-up data were analyzed retrospectively. One hundred and sixty four cases were diagnosed as amino acid metabolic disorders with a prevalence of 1:11 349, including 83 with hyperphenylalaninaemia (1:22 400), 29 with neonatal intrahepatic cholestasis caused by citrin deficiency (1:64 138), 16 with methionine S-adenosyltransferase deficiency (1:116 250), 9 with maple syrup urine disease (1:206 667), 8 with argininemia (1:232 500), 7 with citrullinemia type Ⅰ (1:265 700), 6 with hyperprolinemia type Ⅰ (1:310 000), and 2 with carbamylphosphate synthetase Ⅰ deficiency(1:930 000). In addition, ornithine transcarbamylase deficiency, cystathionine β-synthase deficiency, argininosucoinate aciduria and tyrosinemia type Ⅰ were detected in one patient for each, respectively. Two patients had developmental delay, 7 patients were dead, and 2 cases of maple syrup urine disease were lost to follow-up. Hyperphenylalaninaemia is the most common amino acid metabolic disease in newborns in Zhejiang province. Patients with amino acid metabolic disorders identified in newborn screening program can have chance for normal growth development by intervention.
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More From: Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences
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