Background: Human cytomegalovirus (HCMV) is the first cause of viral infection in immunocompromised transplanted patients.
Objectives: Here, five HCMV genes were studied to investigate the existence of recombination events in clinical strains ex vivo.
Study Design: Sequencing and phylogenetic analysis were conducted on 21 strains from 16 renal and 5 lung transplant recipients.
Results: Nucleotidic polymorphism ranged from 6.6% (US3) to 12% (UL40), with a significant proportion of missense mutations (39-69%), some of which could have a functional impact. Analysis of the concatenated sequence (4804 nucleotides for each strain) evidenced two clusters of sequences presenting a reticulate topology suggestive of recombination events (SplitsTree). Phi-test pointed numerous phylogenetically conflicting signals indicating a high statistical probability of recombination. The subsequent bootscan analysis was consistent with these data.
Conclusions: These results reinforce the prominent role of recombination in HCMV evolutionary history and adaptation to its host.
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http://dx.doi.org/10.1016/j.jcv.2009.11.023 | DOI Listing |
Turk Arch Pediatr
January 2025
Division of Child Neurology, Department of Pediatrics, Kocaeli University School of Medicine, Kocaeli, Türkiye.
Ocul Immunol Inflamm
January 2025
Department of Ophthalmology, University of Tokyo Hospital, Tokyo, Japan.
Purpose: To examine the recurrence of cytomegalovirus (CMV) iritis in patients using low-dose ganciclovir (GCV) eye drops.
Methods: We included patients with dormant CMV iritis who were treated using 2% GCV eye drops at the University of Tokyo Hospital between January and June 2023 and whose dosage of GCV eye drops was required to be reduced due to the unstable GCV supply. Patients were excluded if they had active CMV retinitis and underwent corneal transplantation.
Turk Arch Pediatr
January 2025
Division of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye.
Objective: Prolidase deficiency is a metabolic and immunological disorder that is inherited in an autosomal recessive manner. In prolidase deficiency, a broad spectrum of differences is observed in patients, ranging from asymptomatic to multisystem involvement. There is scarce information in the literature on the atypical features and immunophenotypes of this disease.
View Article and Find Full Text PDFBr J Ophthalmol
December 2024
Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Kyoto, Japan.
Purpose: This study was designed to investigate risk factors for the development of cytomegalovirus (CMV) corneal endotheliitis following corneal transplantation.
Methods: We retrospectively analysed 1225 corneal transplants for bullous keratopathy between 2011 and 2021. 31 cases who were administered the treatment of CMV corneal endotheliitis preoperatively were excluded, and 1194 cases were analysed for risk factors for the development of CMV corneal endotheliitis following corneal transplantation.
Int J Mol Sci
December 2024
Department of Physiopathology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland.
Rheumatoid arthritis (RA), an autoimmune disease with complex pathogenesis, is characterized by an immune imbalance reflected, e.g., in the disturbed cytokines' profile.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!