Alpha-1-antitrypsin (a1-AT) deficiency is an inborn error of metabolism, which can cause liver disease. The condition is one of the most common genetic disorders in the Caucasian population. Here we review our experience with 21 children suffering from end-stage liver disease due to a1-AT deficiency. All children are PIZZ homozygotes. Nineteen of them initially presented with neonatal jaundice and two with hepatosplenomegaly in childhood. Twenty-five liver transplantations were performed. All children are currently alive at a median followup of 40 months. Liver replacement provides the only definite treatment for children with end-stage liver disease associated with a1-AT deficiency. Excellent results can be achieved by reducing waiting time for transplantation and by early referral to a liver transplant centre.
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http://dx.doi.org/10.1007/s001470050688 | DOI Listing |
AoB Plants
January 2024
Department of Agroecology, College of Agriculture and Natural Resources of Darab, Shiraz University, Shiraz, 7459117666, Iran.
. Maize may be exposed to several abiotic stresses in the field. Therefore, identifying the tolerance mechanisms of natural field stress is mandatory.
View Article and Find Full Text PDFRespir Med
May 2023
National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Alpha-1 antitrypsin deficiency (AATD) is a genetic disorder, characterized by panacinar emphysema mainly in the lower lobes, and predisposes to chronic obstructive pulmonary disease (COPD) at a younger age, especially in patients with concomitant cigarette smoking. Alpha-1 antitrypsin (a1-AT) is a serine protease inhibitor that mainly blocks neutrophil elastase and maintains protease/antiprotease balance in the lung and AATD is caused by mutations in the SERPINA1 gene that encodes a1-AT protein. PiZZ is the most common genotype associated with severe AATD, leading to reduced circulating levels of a1-AT.
View Article and Find Full Text PDFCOPD
March 2013
Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA.
This supplement celebrates the 50th anniversary of Alpha-1 antitrypsin deficiency (AATD). Initially AATD was associated with an inherited form of emphysema. This historical article describes the predisposition of AATD to liver disease.
View Article and Find Full Text PDFAm J Physiol Renal Physiol
May 2012
Emory University School of Medicine, Department of Medicine, Renal Division, 1639 Pierce Dr., Atlanta, GA 30322, USA.
The UT-A1 urea transporter plays a critical role in the production of concentrated urine. Both vasopressin and hypertonicity increase urea permeability in rat terminal inner medullary collecting ducts (IMCD). Each agonist independently increases UT-A1 phosphorylation and apical plasma membrane accumulation.
View Article and Find Full Text PDFSemin Liver Dis
May 2011
Centre for Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Frimley Park Hospital NHS Foundation Trust, Surrey, United Kingdom.
The genetic background of patients with liver diseases modulates hepatic injury, with some individuals being predisposed to better defenses and regenerative capacity. In this review, we focus our description of this phenomenon on inherited disorders affecting the liver, with a particular emphasis on Wilson disease (WD), genetic hemochromatosis, and α-1 anti-trypsin disease (A1-AT). Wide variations in the clinical phenotype of WD may in part be related to the mutations of the ATP7B genotype, though modifier genes and environmental factors also likely play an important role.
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