[Measurement of B-lymphocyte stimulator mRNA expression in children with infectious mononucleosis by real-time fluorescence quantitative method]. | LitMetric
Objective: B cell multiplication plays a key role in infections mononucleosis. The present study was designed to detect the expression of B-lymphocyte stimulator (BLyS) mRNA in peripheral blood using real-time fluorescence quantitative polymerase chain reaction (RFQ-PCR) in children with infectious mononucleosis in order to explore the role of BLys in this disorder.
Methods: Specific primers and TaqMan probes of BLyS were designed, and fluorescence of the PCR products were detected continuously during amplification. According to the standard curves created by plasmid DNA, the expression level of target genes in clinical samples were calculated using Stata Software version 8.0, and the results were presented as the ratio of copies of target gene mRNA to beta2 microglobulin (beta2M) mRNA copies. BLyS mRNA expression in peripheral blood was measured by RFQ-PCR in 18 children with infectious mononucleosis and the results were compared with those measured in 15 healthy controls.
Results: The range of target gene mRNA detected by REQ-PCR was from 109 ng/L to 101 ng/L. The coefficient of variation for intra-experimental and inter-experimental reproducibility ranged from 1.88% to 5.89% and 6.32% to 12.34%, respectively. BLyS mRNA expression in peripheral blood in children with infectious mononucleosis were significantly higher than that in controls (1.65+/-0.10 vs 0.56+/-0.08; P < 0.01).
Conclusions: RFQ-PCR has a high sensitivity and reproducibility for the measurement of BLyS mRNA expression. BLyS may be involved in the development of infectious mononucleosis.
Background: Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (EBV-HLH) is a severe hyperinflammatory disorder induced by overactivation of macrophages and T cells. This study aims to identify the risk factors for the progression from infectious mononucleosis (EBV-IM) to EBV-HLH, by analyzing the laboratory parameters of patients with EBV-IM and EBV-HLH and constructing a clinical prediction model. The outcome of this study carries important clinical value for early diagnosis and treatment of EBV-HLH.
Epstein-Barr virus strains present in South-East Asia are tightly associated with nasopharyngeal carcinomas. We report the case of a Caucasian female who presented with an infectious mononucleosis syndrome. Sequencing demonstrated that she had been infected with a virus of Chinese origin that is thus spreading into European countries.
The molecular diversity of Epstein-Barr virus (EBV) is defined by mutations in specific EBV genes and has been insufficiently studied in infectious mononucleosis (IM). The aim of this study was to determine all variations of the EBV latency genes EBNA-1, EBNA-2 and LMP-1 in pediatric patients with EBV-associated IM in Croatia, including previously defined SNPs and indels as well as previously undocumented polymorphisms. The vast majority of EBV isolates (71/72) were determined as EBV type 1 while EBNA-1 genes were classified exclusively as previously defined EBNA-1 prototypes, with 22/72 sequences categorized as P-Ala and 50/72 sequences as P-Thr.
One of the main clinical manifestations of infection by the Epstein-Barr virus (EBV) is infectious mononucleosis. In this clinical syndrome, mild hepatitis with a slight elevation of aminotransferases is common. However, cholestasis is rare and usually occurs alongside a more severe, cytolytic hepatitis.
Atraumatic splenic rupture is a very rare and potentially life-threatening event usually associated with underlying pathological conditions. Splenic rupture in infectious mononucleosis occurs only in 0.1%-0.
