Document Detail


Endothelial nitric oxide synthase gene variation associated with chronic kidney disease after liver transplant.
MedLine Citation:
PMID:  20810793     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To identify single nucleotide polymorphisms (SNPs) associated with risk of developing chronic kidney disease (CKD), a prevalent comorbidity, after liver transplant (LT).
PATIENTS AND METHODS: This study consists of a cohort of adult (> or =18 years) primary-LT recipients who had normal renal function before LT and who survived 1 year or more after LT at a high-volume US LT program between January 1, 1990, and December 31, 2000. Patients with adequate renal function (estimated glomerular filtration rate, > or =40 mL/min per 1.73 m(2) during follow-up; n=308) and patients with incident CKD (estimated glomerular filtration rate, <40 mL/min per 1.73 m(2) after LT; n=92) were identified. To investigate the association of 6 candidate genes with post-LT CKD, we selected SNPs that have been associated with renal function in the literature. Hazard ratios were estimated using Cox regression, adjusted for potential confounding variables.
RESULTS: The variant allele (298Asp) of the Glu298Asp SNP in the endothelial nitric oxide synthase gene (NOS3) was significantly associated with CKD after LT (P=.05; adjusted for multiple comparisons). The 5-year incidence of CKD was 70% among patients homozygous for the NOS3 variant allele (298Asp) compared with 42% among those not homozygous for the NOS3 variant allele. Specifically, homozygosity for the NOS3 variant allele conferred a 2.5-fold increased risk of developing CKD after LT (P=.005, adjusted for confounding variables).
CONCLUSION: Homozygosity for the variant allele of NOS3 (298Asp) is associated with CKD after LT and may be useful for identifying recipients at higher risk of post-LT CKD.
Authors:
Kiran Bambha; W Ray Kim; Charles B Rosen; Rachel A Pedersen; Cynthia Rys; Christopher P Kolbert; Julie M Cunningham; Terry M Therneau
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Mayo Clinic proceedings. Mayo Clinic     Volume:  85     ISSN:  1942-5546     ISO Abbreviation:  Mayo Clin. Proc.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-02     Completed Date:  2010-09-27     Revised Date:  2011-07-25    
Medline Journal Info:
Nlm Unique ID:  0405543     Medline TA:  Mayo Clin Proc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  814-20     Citation Subset:  AIM; IM    
Affiliation:
Division of Gastroenterology and Hepatology, University of Colorado Health Sciences Center, Denver, USA.
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MeSH Terms
Descriptor/Qualifier:
Alleles
Female
Genetic Association Studies*
Genotype
Glomerular Filtration Rate
Homozygote
Humans
Kaplan-Meier Estimate
Kidney Failure, Chronic / etiology,  genetics*
Liver Transplantation / adverse effects*
Male
Middle Aged
Nitric Oxide Synthase Type III / genetics*
Polymorphism, Single Nucleotide / genetics*
Proportional Hazards Models
Grant Support
ID/Acronym/Agency:
AT-004174/AT/NCCAM NIH HHS; DK-34238/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
EC 1.14.13.39/NOS3 protein, human; EC 1.14.13.39/Nitric Oxide Synthase Type III
Comments/Corrections

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