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SM ISO690:2012 SCURTUL, Maria, BOICIUC, Chiril, BLĂNIŢĂ, Daniela, CROITORI, Tamara, LAZARI, Nicoleta. Specificul molecular genetic în fenilcetonurie în Republica moldova (anii 2018-2019). In: Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, 21-23 octombrie 2020, Chişinău. Chişinău: USMF, 2020, p. 538. |
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Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu” 2020 | ||||||
Congresul "Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”" Chişinău, Moldova, 21-23 octombrie 2020 | ||||||
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Pag. 538-538 | ||||||
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Background. Phenylketonuria (PKU) is an autosomal recessive disorder, caused by phenylanine hydroxylase deficiency, leading to phenylalanine(Phe) accumulation in blood, that is responsible for progressive mental retardation. Objective of the study. The aim of the study was to diagnose PKU, on the basis of neonatal screening, organized in 2018-2019 and to review the cases by molecular methods and identify the mutations that caused the disease. Material and Method. In 2018-2019, 62943 of newborns were subjected to neonatal screening in Moldova (screening rate 96.16%), based on the fluorometric method. There were 17 children diagnosed with PKU, from which 11 were tested by PCR/RFLP on 6 frequent mutations in PAH gene (R408W, P281L, L48S, R158Q, R252W, R261Q) and sequencing of the exons 2,3,5,6-8,10-13 by Sanger method. Results. As a result of neonatal screening, there were identified 376 suspects for PKU, showing Phe blood levels >3 mg/dL, from which only 17 were confirmed with PKU. The DNA samples were collected from 11 PKU subjects. The molecular analysis by PCR/RFLP method lead to identification of 45.45% of mutations. The most frequent genotype was R408W/L48S, established in 3 patients. The replenishment of the study with Sanger sequencing results enabled detection of complete genotype by following: splicing (IVS7+4A>G, IVS11+7T>C, IVS12+1G>A), missense (A342T), and nonsense (R111X) mutations. Conclusion. To conclude, there was identified the spectrum of mutations specific to Moldovan PKU cohort diagnosed in 2018-2019, grace to efficient organization of neonatal screening and diagnostics of PKU. |
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Cuvinte-cheie Phenylketonuria, phenylalanine hydroxylase, neonatal screening, fenilcetonurie, gena fenilalanin hidroxilazei, screening neonatal |
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