Diagnosis Of Alpha-1-antitrypsin Deficiency By Dna Analysis Of Children With Liver Disease

dc.creatorDe Tommaso A.M.A.
dc.creatorRossi C.L.
dc.creatorEscanhoela C.A.F.
dc.creatorSerra H.G.
dc.creatorBertuzzo C.S.
dc.creatorHessel G.
dc.date2001
dc.date2015-06-26T14:43:10Z
dc.date2015-11-26T14:16:19Z
dc.date2015-06-26T14:43:10Z
dc.date2015-11-26T14:16:19Z
dc.date.accessioned2018-03-28T21:17:16Z
dc.date.available2018-03-28T21:17:16Z
dc.identifier
dc.identifierArquivos De Gastroenterologia. , v. 38, n. 1, p. 63 - 68, 2001.
dc.identifier42803
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0035236624&partnerID=40&md5=4701bd41f0425894f4a9ebfdf5520ed9
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/94990
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/94990
dc.identifier2-s2.0-0035236624
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1243025
dc.descriptionBackground - Alpha-1-antitrypsin deficiency is a genetic disorder which is transmitted in a co-dominant, autosomal form. Alpha-1-antitrypsin deficiency affects mainly the lungs and the liver leading, in the latter case, to neonatal cholestasis, chronic hepatitis or cirrhosis. A precise diagnosis of Alpha-1-antitrypsin deficiency may be obtained by biochemical or molecular analysis. Objective - The purpose of this study was to use DNA analysis to examine the presence of an alpha-1-antitrypsin deficiency in 12 children suspected of having this deficiency and who showed laboratory and clinical characteristics of the disease. Patients and Methods - Twelve patients, aged 3 months to 19 years, who had serum alpha-1-antitrypsin levels lower than normal and/or had hepatic disease of undefined etiology were studied. The mutant alleles S and Z of the alpha-1-antitrypsin gene were investigated in the 12 children. Alpha-1-antitrypsin gene organization was analyzed by amplification of genoma through the polymerase chain reaction and digestion with the restriction enzymes Xmnl (S allele) and Taq 1 (Z allele). Results - Seven of the 12 patients had chronic liver disease of undefined etiology and the other five patients had low serum levels of alpha-1-antitrypsin as well as a diagnosis of neonatal cholestasis and/or chronic liver disease of undefined etiology. Five of the 12 patients were homozygous for the Z allele (ZZ) and two had the S allele with another allele (*S) different from Z. Conclusion - These results show that alpha-1-antitrypsin deficiency is relatively frequent in children with chronic hepatic disease of undefined etiology and/or low alpha-1-antitrypsin levels (41.6%). A correct diagnosis is important for effective clinical follow-up and for genetic counseling.
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dc.languageen
dc.publisher
dc.relationArquivos de Gastroenterologia
dc.rightsaberto
dc.sourceScopus
dc.titleDiagnosis Of Alpha-1-antitrypsin Deficiency By Dna Analysis Of Children With Liver Disease
dc.typeArtículos de revistas


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