PMID- 19961268 OWN - NLM STAT- MEDLINE DCOM- 20100222 LR - 20211020 IS - 2000-1967 (Electronic) IS - 0300-9734 (Print) IS - 0300-9734 (Linking) VI - 114 IP - 4 DP - 2009 TI - Alpha-1-antitrypsin phenotypes in adult liver disease patients. PG - 228-34 LID - 10.3109/03009730903243472 [doi] AB - Alpha-1-antitrypsin (AAT) is an important serine protease inhibitor in humans. Hereditary alpha-1-antitrypsin deficiency (AATD) affects lungs and liver. Liver disease caused by AATD in paediatric patients has been previously well documented. However, the association of liver disease with alpha-1-antitrypsin gene polymorphisms in adults is less clear. Therefore, we aimed to study AAT polymorphisms in adults with liver disease. We performed a case-control study. AAT polymorphisms were investigated by isoelectric focusing in 61 patients with liver cirrhosis and 9 patients with hepatocellular carcinoma. The control group consisted of 218 healthy blood donors. A significant deviation of observed and expected frequency of AAT phenotypes from Hardy-Weinberg equilibrium (chi-square = 34.77, df 11, P = 0.000) in the patient group was caused by a higher than expected frequency of Pi ZZ homozygotes (f = 0.0143 and f = 0.0005, respectively, P = 0.000). In addition, Pi M homozygotes were more frequent in patients than in controls (63% and 46%, respectively, P = 0.025). Our study results show that Pi ZZ homozygosity in adults could be associated with severe liver disease. Presence of Pi M homozygosity could be associated with liver disease via some mechanism different from Z allele-induced liver damage through accumulation of AAT polymers. FAU - Topic, Aleksandra AU - Topic A AD - Institute of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia. atopic@pharmacy.bg.ac.rs FAU - Alempijevic, Tamara AU - Alempijevic T FAU - Milutinovic, Aleksandra Sokic AU - Milutinovic AS FAU - Kovacevic, Nada AU - Kovacevic N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Sweden TA - Ups J Med Sci JT - Upsala journal of medical sciences JID - 0332203 RN - 0 (SERPINA1 protein, human) RN - 0 (alpha 1-Antitrypsin) SB - IM MH - Adult MH - Aged MH - Alleles MH - Amino Acid Substitution MH - Carcinoma, Hepatocellular/blood/genetics MH - Case-Control Studies MH - Female MH - Gene Frequency MH - Heterozygote MH - Homozygote MH - Humans MH - Liver Cirrhosis/blood/etiology/genetics MH - Liver Diseases/blood/etiology/*genetics MH - Liver Neoplasms/blood/genetics MH - Male MH - Middle Aged MH - Phenotype MH - *Polymorphism, Genetic MH - alpha 1-Antitrypsin/blood/*genetics MH - alpha 1-Antitrypsin Deficiency/blood/complications/genetics PMC - PMC2852779 EDAT- 2009/12/08 06:00 MHDA- 2010/02/23 06:00 PMCR- 2009/12/01 CRDT- 2009/12/08 06:00 PHST- 2009/12/08 06:00 [entrez] PHST- 2009/12/08 06:00 [pubmed] PHST- 2010/02/23 06:00 [medline] PHST- 2009/12/01 00:00 [pmc-release] AID - UPS_A_424521_O [pii] AID - 10.3109/03009730903243472 [doi] PST - ppublish SO - Ups J Med Sci. 2009;114(4):228-34. doi: 10.3109/03009730903243472.