Molecular Detection and Genotyping of Human Cytomegalovirus in Kidney Transplant Recipients under Ganciclovir Prophylaxis in Iran
Intervirology(2023)
Abstract
Introduction: Human cytomegalovirus (HCMV) infection is one of the most common viral complications in kidney transplant recipients. Although there are effective treatments strategies for the HCMV infection, this infection is still one of the causes of kidney transplant rejection. Methods: A total of 246 kidney transplant recipients participated in this cross-sectional study. Viral DNA was extracted from these plasma samples, and the presence of HCMV genome was determined by semi-nested PCR with specific primers for the HCMV B glycoprotein gene. Sanger sequencing analyses were carried out to determine HCMV genotypes, and the Mega x software was used for nucleotide alignment and construction of a phylogenetic tree. Results: HCMV DNA was detected in 11 (4.47%) recipients. According to the phylogenetic analysis, HCMV gB3 was 50% among kidney transplant recipients, followed by gB4 30% and gB1 20%; however, the gB2 genotype was not detected. Conclusions: This study demonstrated that the HCMV infection in our patients is relatively low because all transplant recipients received appropriate prophylaxis, thereby antiviral prophylaxis is recommended for all patients at risk of HCMV infection after kidney transplantation. Also, gB3 was the most predominant genotype among our kidney transplant recipients that was related to the higher rate of prevalence of severe HCMV infections. Moreover, an elevated serum creatinine level was detected in patients at the time of detection of HCMV infection.
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Key words
Human cytomegalovirus,Renal transplantation,Genotyping,Glycoprotein B
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