期刊
HEPATOLOGY RESEARCH
卷 48, 期 3, 页码 E335-E339出版社
WILEY
DOI: 10.1111/hepr.12920
关键词
liver steatosis; liver transplantation; PNPLA3
Aim: Liver steatosis frequently occurs following liver transplantation (LT) and can affect patient outcome. Here, we aimed to clarify the steatosis and steatohepatitis risk factors that apply after living-donor LT for chronic hepatitis C. Methods: We retrospectively examined 43 transplant recipients and donors, and tested for single nucleotide polymorphisms in the PNPLA3 gene. Liver biopsies taken 1 year after transplantation and yearly thereafter, or when abnormal liver enzyme levels were detected, were examined by histopathology. Results: Liver steatosis (>5% steatotic hepatocytes) was evident in 13 of 43 cases (30%), and steatohepatitis in 3 (7.0%). The average time to steatosis after LT was 2.74 +/- 1.55 years. The PNPLA3 rs738409 GG genotype, a steatosis risk factor, was identified in 13 recipients and 10 donors. Steatosis prevalence did not differ according to recipient genotype. However, this condition was significantly more common among patients who received tissue from donors carrying the rs738409 GG genotype compared to those with grafts from donors of the CC or CG genotype (60, 7, and 26%, respectively; P<0.05). All 3 steatohepatitis cases were associated with the GG donor genotype. Conclusion: The PNPLA3 rs738409 GG donor genotype affects liver steatosis and steatohepatitis risk following living-donor LT.
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