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1.
Chinese Journal of Applied Clinical Pediatrics ; (24): 1815-1819, 2021.
Artículo en Chino | WPRIM | ID: wpr-908063

RESUMEN

Objective:To investigate the prevalence, gene variation and prognosis of very long chain acyl CoA dehydrogenase deficiency (VLCADD) in newborns in Henan Province.Methods:From January 2013 to December 2019, 867 103 newborns were investigated for VLCADD by tandem mass spectrometry.Children who diagnosed as VLCADD and their families were subjected to next-generation sequencing and Sanger sequencing.Clinical data, biochemical changes and gene variation characteristics of the confirmed cases of VLCADD were analyzed.Dietary guidance was given, and their growth and development were followed up.Results:Six neonates were diagnosed as VLCADD, and the prevalence of VLCADD in the Henan Province was 1/144 517.A total of 11 mutations in the ACADVL gene were found, including 5 new variants c. 692-2_692-1delAG, c.753-23_753-22del, c.960delG, c.1361A>G, and c. 1955C>T.The newborns were given a high-carbohydrate, low-fat diet, and followed up for 8-56 months.Except for two deaths, all patients had a good outcome. Conclusions:The prevalence of neonatal VLCADD in Henan Province is 1/144 517.This results has enriched the ACADVL gene mutation spectrum and provided an important basis for the screening and diagnosis of VLCADD.

2.
Chinese Journal of Applied Clinical Pediatrics ; (24): 1568-1572, 2018.
Artículo en Chino | WPRIM | ID: wpr-696641

RESUMEN

Objective According to the clinical and gene mutation characteristics of ACADVL-related very long chain acyl-CoA dehydrogenase deficiency(VLCADD),the types that contribute to the gene mutation of ACADVL were summarized.Methods By analyzing clinical,laboratory and genetic data of 1 case with ACADVL-related very long chain acyl-CoA dehydrogenase deficiency diagnosed from Department of Pediatrics,the Affiliated Hospital of Inner Mongolia Medical University in August 2016,based on the agreement signed by both the litde patient's parents and the hospital,plus the high-throughput sequencing analysis and PCR sequencing test for the 2 generation genes,some presented mutation sites were analyzed and concluded,in addition to taking "ACADVL" as key words to search the databases from CNKI,Wanfang(updated in 2016) as well as PubMed and related documents from On-line Mendal Inheritant databases of Man (OMIM) and HGMD.Results Through physical examination,VLCADD was diagnosed.After being given Levocamitine and the diet likemedium-chain fatty acid food for a week,the metabolism returned to normal.Tracking him for 3 months,his hepatitis obviously rebounded,within the reach of 3 cm under the right rib and 1 cm under the xiphoid.The exome sequencing study (trios) was identified the novel heterozygous mutation according to the statistics below A CAD VL (N M_000018.3) Exon7:c.608 C > T;p.(Pro203 Leu) (heterozygous) and A CAD VL (NM _000018.3) Exon18:c.1748C > T;p.(Ser583Leu) (heterozygous) in ACADVL.Relevant literature reported suggest these two mutations from both the parents are pathogenic genes,which can account for the reason why the boy got ill.However,these two mutations had not been reported in ACADVL-related VLCADD so far.Up to now,73 types of mutations from documents index were related to the VLCADD,but the clinical case included 75 kinds of gene mutations.Conclusions The apparent symptoms of the boy with the gene mutation were reflected in abnormal heart rates,hepatomegaly and hypoglycemia.VLCADD was diagnosed through genetic testing,and systematic treatment can partly control the development of the disease.In conclusion,the findings (exon 7 and 18) show that according to the genetic tests,disease-causing genes from both parents are new mutations of ACADVL and they are pathogenic.

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