ABSTRACT
Crigler-Najjar syndrome type 2 is a rare cause for persistent unconjugated hyperbilirubinemia, inherited in an autosomal recessive manner. Even though it is compatible with normal life span, in the absence of prompt suspicion and intensive management it can prove fatal not only in the neonatal period but also during adult life. Here, we describe a case with a novel homozygous UGT1A1 p.Pro176Leu mutation.
Subject(s)
Adult , Adolescent , Bilirubin/genetics , Consanguinity , Crigler-Najjar Syndrome/genetics , Female , Glucuronosyltransferase/genetics , Humans , Hyperbilirubinemia/genetics , Male , MutationABSTRACT
Se describe el primer caso nacional de una embarazada con síndrome de Dubin-Johnson. El síndrome se caracteriza por una hiperbilirrubinemia crónica a predominio de la directa de origen familiar, no hemolítica, debido a un trastorno del transporte de la bilirrubina del hepatocito hasta el canalículo biliar y depósito en el hepatocito de un pigmento oscuro, similar a la melamina. La ictericia, usualmente ausente en el primer trimestre, aumenta en el segundo y sobre todo en el tercer trimestre del embarazo. En nuestro caso, la paciente es II gesta, II para, en ambos embarazos se observó el patrón clínico y bioquímico, con exacerbación durante el tercer trimestre y valores más acentuados en el segundo embarazo. Las dos gestaciones cursaron normalmente y en ambos se obtuvieron recién nacidos normales sin posteriores complicaciones
Subject(s)
Humans , Female , Pregnancy , Adult , Bilirubin , Pregnancy , Hyperbilirubinemia/diagnosis , Hyperbilirubinemia/genetics , Jaundice, Chronic Idiopathic , Syndrome , VenezuelaABSTRACT
Recent molecular studies have resulted in the identification of genetic alterations underlying several hereditary disorders of the liver. Cloning of disease genes are increasing our understanding of the basic defects in liver diseases. This review focuses on selected inherited liver diseases such as hyperbilirubinemic syndromes, hemochromatosis, Wilson disease and genetic cholestatic syndromes and illustrate the knowledge gained on these disorders from molecular studies. Potential implications of the identification of disease genes such as practical applications for diagnosis, information on prognosis and the possibility to design new therapies are discussed