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Analysis of GCDH gene mutations in 3 patients from Fujian area with glutaric academia type I / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 657-660, 2018.
Article in Chinese | WPRIM | ID: wpr-688174
ABSTRACT
<p><b>OBJECTIVE</b>To explore clinical features and mutation types in patients from Fujian area with glutaric academia type I(GA I).</p><p><b>METHODS</b>Serum acylcarnitine and urine organic acid of 3 patients were determined with tandem mass spectrometry and gas chromatographic mass spectrometry. The patients also underwent magnetic resonance imaging analysis for the cranial region. Genomic DNA was extracted from peripheral blood samples, and the 12 exons and flanking regions of the GCDH gene were amplified with PCR and subjected to direct DNA sequencing. One hundred healthy newborns were used as controls.</p><p><b>RESULTS</b>Mutations of the GCDH gene were identified in all of the 3 patients. Two patients have carried compound heterozygous mutations including c.1244-2A>C and c.1147C>T(p.R383C), c.406G>T(p.G136C) and c.1169G>A(p.G390E), respectively. One has carried homozygous c.1244-2A>C mutation. The same mutations were not detected among the 100 healthy newborns. Only one patient received early intervention and did not develop the disease. The other two had irreversible damagesto their intelligence.</p><p><b>CONCLUSION</b>c.1169G>A(p.G390E) is likely pathogenic mutations for GA I patients from Fujianarea. Early screening of neonatal metabolic diseases is crucial for such patients.</p>
Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2018 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2018 Type: Article