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- W2023147718 abstract "Background Experimental data suggest that cytomegalovirus (CMV) initiates innate immunity through the activation of Toll-like receptor 2 (TLR2). To assess the clinical relevance of this experimental observation, we assessed the association between the specific single-nucleotide polymorphism that results in the substitution of arginine for glutamine in position 753 of TLR2 (the TLR2 Arg753Gln polymorphism) and CMV replication and disease after liver transplantation. Methods Ninety-two liver transplant recipients with chronic hepatitis C were screened for the presence of the TLR2 Arg753Gln polymorphism. CMV load was determined in serially collected blood samples using CMV DNA polymerase chain reaction. Kaplan-Meier estimation and univariable and multivariable stepwise Cox proportional hazard models were used to assess associations. Results The degree of CMV replication, as measured by CMV load, was significantly higher in patients who were homozygous (mean maximum viral load, 37,059 copies/mL) and heterozygous (mean maximum viral load, 29,718 copies/mL) for this polymorphism, compared with patients without the TLR2 Arg753Gln polymorphism (mean maximum viral load, 3252 copies/mL; P = .003). Kaplan-Meier survival analysis demonstrated an association between being homozygous for the TLR2 Arg753Gln polymorphism and CMV disease (P = .04). A multivariate Cox proportional hazard model demonstrated a trend towards a higher risk of CMV disease among patients who were homozygous for the TLR2 Arg753Gln polymorphism (hazard ratio, 1.91 [95% confidence interval, 0.91–3.40]; P = .08) after adjusting for patient age, CMV serostatus, and allograft rejection. Conclusions TLR2 Arg753Gln polymorphism is possibly associated with CMV replication and disease after liver transplantation. This novel clinical observation supports the potential role of TLR2 in the immunologic control of CMV infection in humans." @default.
- W2023147718 created "2016-06-24" @default.
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- W2023147718 date "2007-01-01" @default.
- W2023147718 modified "2023-09-27" @default.
- W2023147718 title "Who is at risk for developing cytomegalovirus (CMV) infection following liver transplantation?" @default.
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- W2023147718 doi "https://doi.org/10.1002/lt.21242" @default.
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