scholarly journals Detection of Antigens of Cardiotropic Viruses in Atherosclerotic Plaques in Patients with Fatal Myocardial Infarction

Kardiologiia ◽  
2019 ◽  
Vol 59 (7) ◽  
pp. 38-43 ◽  
Author(s):  
Ya. V. Alekseeva ◽  
M. S. Rebenkova ◽  
A. E. Gombozhapova ◽  
Yu. V. Rogovskaya ◽  
V. V. Ryabov
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Epstein Barr Virus ◽  
Parvovirus B19 ◽  
Atherosclerotic Plaques ◽  
Barr Virus ◽  
Virus Antigens ◽  
Epstein Barr ◽  
Simplex Virus ◽  
Fatal Myocardial Infarction

Aim. To assess the frequency of detection of cardiotropic virus antigens in coronary artery atherosclerotic plaques in patients with fatal myocardial infarction (MI).Materials and methods. We examined fragments of coronary plaques of 12 patients with fatal type 1 MI. Immunohistochemistry (IHC) of plaques was performed with the paraffin blocks using antibodies to Herpes simplex virus (HSV)-1, HSV-2, HSV-6, cytomegalovirus (CMV), parvovirus B19, adenovirus, Epstein-Barr virus and enteroviruses.Results. According to the IHC all patients had virus antigens. The most common virus agents in fragments of coronary plaques were HSV-6 (10 patients) and enteroviruses (5 patients). Antigens of CMV, parvovirus B19, adenovirus, Epstein-Barr virus were not detected in any case.Conclusions. In this study viral antigens in coronary artery atherosclerotic plaques were found in all victims of fatal MI. There was no difference in the frequency of detection and type of viral agents between plaques in culprit arteries and uncomplicated atherosclerotic plaques.

scholarly journals Acute Parvovirus B19 Infection Frequently Causes False-Positive Results in Epstein-Barr Virus- and Herpes Simplex Virus-Specific Immunoglobulin M Determinations Done on the Liaison Platform

2008 ◽  
Vol 16 (3) ◽  
pp. 372-375 ◽  
Author(s):  
Mario Berth ◽  
Eugene Bosmans
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Positive Result ◽  
Epstein Barr Virus ◽  
Parvovirus B19 ◽  
Immunoglobulin M ◽  
Barr Virus ◽  
Epstein Barr ◽  
Simplex Virus ◽  
Assay Interference

ABSTRACT During an outbreak of parvovirus B19 we collected serum samples from 68 nonpregnant patients in the region of Antwerp (Belgium). Fifty-seven (84%) of the parvovirus B19 immunoglobulin M (IgM)-positive sera had a positive result for Epstein-Barr virus (EBV) IgM by Liaison testing, 61 (90%) had a positive result for herpes simplex virus (HSV) IgM, 20 (29%) samples were positive for cytomegalovirus IgM, and 15 (22%) had a positive result for Borrelia burgdorferi sensu lato IgM. As assay interference was suspected, sera were further investigated by using additional infectious-disease serology tests and by performing various interference elimination procedures. We could show that the EBV IgM and HSV IgM results were false positives due to aspecific IgM reactions with the solid phase. All samples were also analyzed by a modified Liaison EBV IgM assay, based on the addition of polyvinylpyrrolidone and polyvinyl alcohol to the dilution buffer, which partially eliminated this type of assay interference. Although the Liaison is a very convenient, automated immunoassay platform, this study demonstrates the potential for improvement of mainly the EBV IgM and HSV IgM tests.

Herpesvirus DNA (Epstein-Barr virus, herpes simplex virus, cytomegalovirus) in circulating monocytes of patients with coronary artery disease

2005 ◽  
Vol 60 (6) ◽  
pp. 605-610 ◽  
Author(s):  
Axel SCHLITT ◽  
Stefan BLANKENBERG ◽  
Kerstin WEISE ◽  
Barbara C. GÄRTNER ◽  
Torsten MEHRER ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Herpes Simplex Virus ◽  
Coronary Artery ◽  
Herpes Simplex ◽  
Epstein Barr Virus ◽  
Barr Virus ◽  
Epstein Barr ◽  
Artery Disease ◽  
Simplex Virus

Detection of herpes simplex virus, cytomegalovirus and Epstein-Barr virus DNA in atherosclerotic plaques and in unaffected bypass grafts

2005 ◽  
Vol 32 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Ali I. Ibrahim ◽  
Michel T. Obeid ◽  
Muhidien J. Jouma ◽  
Ghassan A. Moasis ◽  
Wael L. Al-Richane ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Epstein Barr Virus ◽  
Atherosclerotic Plaques ◽  
Bypass Grafts ◽  
Barr Virus ◽  
Epstein Barr ◽  
Simplex Virus

scholarly journals Microbial landscape of atherosclerotic plaques biopsy samples

2015 ◽  
Vol 96 (6) ◽  
pp. 979-982 ◽  
Author(s):  
D M Sharifullina ◽  
R M Vasil’eva ◽  
T I Yakovleva ◽  
E G Nikolaeva ◽  
O K Pozdeev ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Coronary Arteries ◽  
Epstein Barr Virus ◽  
Atherosclerotic Plaques ◽  
Barr Virus ◽  
Atherosclerotic Lesions ◽  
Bacteriological Method ◽  
Epstein Barr ◽  
Simplex Virus

Aim. To study the microflora composition of different localization atherosclerotic plaques in patients with atherosclerosis. Methods. 88 samples of atherosclerotic plaques were analyzed, including brachycephalic arteries - 71, the coronary arteries - 13, the aorta - 2, vessels of lower extremities - 2. The specimens were obtained from 71 men and 17 women aged 30-79 years (mean age 50.8 years). The presence of aerobic and anaerobic microflora was determined by bacteriological method. Detection of the cytomegalovirus nucleic acid, herpes simplex virus types 1 and 2, Epstein-Barr virus was performed by real time polymerase chain reaction. Results. The most diverse microflora was represented in the plaques of the neck vessels (carotid arteries). Thereat we found bacteria in 77.5% of the samples, including Propionibacterium acnes - 40.8%, the Staphylococcus genus - 50.7%. 83.3% Staphylococcus isolates were identified as S. epidermidis. In 14.1% of the samples from the brachycephalic artery plaques microorganisms associations (P. acnes and S. epidermidis) were found. The coronary arteries and aorta plaques microflora was represented entirely by P. acnes - 15.4 and 50% respectively. Herpes simplex virus type 1 and 2, and Epstein-Barr virus nucleic acids were detected in 6.7% of samples of carotid artery atherosclerotic plaques. Bacteria associations were presented exclusively in atherosclerotic plaques from brachycephalic arteries - 11.4% of the samples, including 9 bacteria (P. acnes and S. epidermidis) associations, and one association consisted of 3 microorganisms: 2 bacteria (P. acnes and S. epidermidis) and the virus (Epstein-Barr virus). Conclusion. Observed high frequency of microorganisms detection in studied atherosclerotic plaques samples allows to suggest their possible pathogenetic role in the blood vessels endothelium atherosclerotic lesions formation.

Studies of Epstein-Barr Virus Antigens Using Immunoperoxidase and Immunofluorescence Techniques

1975 ◽  
Vol 33 ◽  
pp. 342-343
Author(s):  
R. Stephens ◽  
K. Traul ◽  
D. Woolf ◽  
P. Gaudreau
Keyword(s):  
Electron Microscopy ◽  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Barr Virus ◽  
If Technique ◽  
Infected Cells ◽  
Virus Antigens ◽  
Epstein Barr ◽  
Virus Capsid Antigen ◽  
Antigen Reactivity

A number of antigens have been found associated with persistent EBV infections of lymphoblastoid cells. Identification and localization of these antigens were principally by immunofluorescence (IF) techniques using sera from patients with nasopharyngeal carcinoma (NPC), Burkitt lymphoma (BL), and infectious mononucleosis (IM). Our study was mainly with three of the EBV related antigens, a) virus capsid antigen (VCA), b) membrane antigen (MA), and c) early antigens (EA) using immunoperoxidase (IP) techniques with electron microscopy (EM) to elucidate the sites of reactivity with EBV and EBV infected cells.Prior to labeling with horseradish peroxidase (HRP), sera from NPC, IM, and BL cases were characterized for various reactivities by the indirect IF technique. Modifications of the direct IP procedure described by Shabo and the indirect IP procedure of Leduc were made to enhance penetration of the cells and preservation of antigen reactivity.

scholarly journals Clinical analysis of chronic active EBV infection with coronary artery dilatation and a matched case–control study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ang Wei ◽  
Honghao Ma ◽  
Liping Zhang ◽  
Zhigang Li ◽  
Yitong Guan ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Serum Ferritin ◽  
Epstein Barr Virus ◽  
Epstein Barr Virus Infection ◽  
Hematopoietic Stem ◽  
Barr Virus ◽  
Coronary Artery Dilatation ◽  
Tnf Α ◽  
Epstein Barr

Abstract Objective To investigate the clinical characteristics, treatment, prognosis and risk factors for chronic active Epstein–Barr Virus infection (CAEBV) associated with coronary artery dilatation (CAD) in children. Methods Children with CAEBV associated with CAD hospitalized at Beijing Children’s Hospital, Capital Medical University from March 2016 to December 2019 were analyzed. Children with CAEBV without CAD were selected as the control group and matched by sex, age, treatment and admission time. The clinical manifestations, laboratory and ultrasound examinations, treatment and prognosis of the children were collected in both groups. Results There were 10 children with CAEBV combined with CAD, including 6 males and 4 females, accounting for 8.9% (10/112) of CAEBV patients in the same period, with an onset age of 6.05 (2.8–14.3) years. The median follow-up time was 20 (6–48) months. All the patients had high copies of EBV-DNA in whole blood [1.18 × 107 (1.90 × 105–3.96 × 107) copies/mL] and plasma [1.81 × 104 (1.54 × 103–1.76 × 106) copies/mL], and all biopsy samples (bone marrow, lymph nodes or liver) were all positive for Epstein–Barr virus-encoded small RNA. Among the 10 children, 8 had bilateral CAD, and 2 patients had unilateral CAD. After diagnosis, 7 children were treated with L-DEP chemotherapy in our hospital. After chemotherapy, four patients underwent allogeneic hematopoietic stem cell transplantation (HSCT). The others were waiting for HSCT. At the time of the last patients follow up record, the CAD had returned to normal in 3 patients, and the time from the diagnosis of CAD to recovery was 21 (18–68) days. LDH, serum ferritin, TNF-α and IL-10 levels were statistically significantly different between the two groups (P = 0.009, 0.008, 0.026 and 0.030). There were no significant differences in survival rate between the two groups (P = 0.416). Conclusion The incidence of CAEBV with CAD was low. CAEBV with CAD did not influence the prognosis. Patients who had high LDH, serum ferritin, TNF-α, and IL-10 levels early in their illness were more likely to develop CAD.

scholarly journals HCF1 and OCT2 Cooperate with EBNA1 To Enhance OriP-Dependent Transcription and Episome Maintenance of Latent Epstein-Barr Virus

2016 ◽  
Vol 90 (11) ◽  
pp. 5353-5367 ◽  
Author(s):  
Jayaraju Dheekollu ◽  
Andreas Wiedmer ◽  
Daniel Sentana-Lledo ◽  
Joel Cassel ◽  
Troy Messick ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Epstein Barr Virus ◽  
Histone H3 ◽  
Type I ◽  
Barr Virus ◽  
Cellular Factors ◽  
Epstein Barr ◽  
Simplex Virus

ABSTRACTEpstein-Barr virus (EBV) establishes latent infections as multicopy episomes with complex patterns of viral gene transcription and chromatin structure. The EBV origin of plasmid replication (OriP) has been implicated as a critical control element for viral transcription, as well as viral DNA replication and episome maintenance. Here, we examine cellular factors that bind OriP and regulate histone modification, transcription regulation, and episome maintenance. We found that OriP is enriched for histone H3 lysine 4 (H3K4) methylation in multiple cell types and latency types. Host cell factor 1 (HCF1), a component of the mixed-lineage leukemia (MLL) histone methyltransferase complex, and transcription factor OCT2 (octamer-binding transcription factor 2) bound cooperatively with EBNA1 (Epstein-Barr virus nuclear antigen 1) at OriP. Depletion of OCT2 or HCF1 deregulated latency transcription and histone modifications at OriP, as well as the OriP-regulated latency type-dependent C promoter (Cp) and Q promoter (Qp). HCF1 depletion led to a loss of histone H3K4me3 (trimethylation of histone H3 at lysine 4) and H3 acetylation at Cp in type III latency and Qp in type I latency, as well as an increase in heterochromatic H3K9me3 at these sites. HCF1 depletion resulted in the loss of EBV episomes from Burkitt's lymphoma cells with type I latency and reactivation from lymphoblastoid cells (LCLs) with type III latency. These findings indicate that HCF1 and OCT2 function at OriP to regulate viral transcription, histone modifications, and episome maintenance. As HCF1 is best known for its function in herpes simplex virus 1 (HSV-1) immediate early gene transcription, our findings suggest that EBV latency transcription shares unexpected features with HSV gene regulation.IMPORTANCEEBV latency is associated with several human cancers. Viral latent cycle gene expression is regulated by the epigenetic control of the OriP enhancer region. Here, we show that cellular factors OCT2 and HCF1 bind OriP in association with EBNA1 to maintain elevated histone H3K4me3 and transcriptional enhancer function. HCF1 is known as a transcriptional coactivator of herpes simplex virus (HSV) immediate early (IE) transcription, suggesting that OriP enhancer shares aspects of HSV IE transcription control.

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