title: Genetic polymorphism at codon 10 of the transforming growth factor-β1 gene in patients with alcoholic liver cirrhosis.
abstract: OBJECTIVE
  Transforming growth factor beta1 (TGF-β1) is a key cytokine in the production of extracellular matrix. A genetic polymorphism at codon 10 of the TGF-β1 gene is associated with liver fibrosis. We investigated the effect of genetic polymorphisms at codon 10 on the development of alcoholic liver cirrhosis (ALC).
  
  
  METHODS
  In total, 119 controls and 182 patients with ALC, were enrolled in the study. Clinical and laboratory data including total lifetime alcohol intake were collected at enrollment. The genotype at codon 10 was determined for each patient by single-strand conformation polymorphism.
  
  
  RESULTS
  There were three types of genetic polymorphism at codon 10: homozygous proline (P/P), heterozygous proline/leucine (P/L), and homozygous leucine (L/L). Among the controls, the proportions of P/P, P/L, and L/L were 26.1%, 44.5%, and 29.4%, respectively in the ALC group, these proportions were 23.1%, 43.4%, and 33.5%, respectively. The genotype distribution did not differ between the controls and the ALC group. In the ALC group, age, total lifetime alcohol intake, and distribution of Child-Pugh class did not differ with the genotype. Of the male patients with ALC (n=164), the proportions of P/P, P/L, and L/L were 20.1%, 44.5%, and 35.4%, respectively the genotype distribution did not differ between the male controls and the male ALC patients.
  
  
  CONCLUSIONS
  The genotype at codon 10 in TGF-β1 does not appear to influence the development of ALC. Further study is needed to investigate other genetic factors that influence the development of ALC in patients with chronic alcohol intake.
authors.affiliation: Department of Internal Medicine, Gachon University of Medicine and Science, Incheon, Korea.
authors.forename: Jong Joon
authors.initials: JJ
authors.lastname: Lee
authors.forename: Soo Kyung
authors.initials: SK
authors.lastname: Park
authors.forename: Oh Sang
authors.initials: OS
authors.lastname: Kwon
authors.forename: In Sik
authors.initials: IS
authors.lastname: Won
authors.forename: Dong Kyu
authors.initials: DK
authors.lastname: Kim
authors.forename: Young Kul
authors.initials: YK
authors.lastname: Jung
authors.forename: Yang Suh
authors.initials: YS
authors.lastname: Ku
authors.forename: Yun Soo
authors.initials: YS
authors.lastname: Kim
authors.forename: Duck Joo
authors.initials: DJ
authors.lastname: Choi
authors.forename: Ju Hyun
authors.initials: JH
authors.lastname: Kim
mesh_terms: D000368:Aged; D000428:Alcohol Drinking; D003062:Codon; D005260:Female; D005838:Genotype; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D008104:Liver Cirrhosis, Alcoholic / Q000235:genetics* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D053773:Transforming Growth Factor beta1 / Q000235:genetics* / Q000378:metabolism
chemical_list: D003062:Codon; D053773:Transforming Growth Factor beta1