scholarly journals Prevalence of Epstein-Barr virus DNA in tonsillar tissue from patients with chronic tonsillitis in Mexican population

2019 ◽  
Vol 13 (08) ◽  
pp. 764-767
Author(s):  
Luis Renee Gonzalez-Lucano ◽  
Gabriela Vazquez Vasquez-Armenta ◽  
Ana Laura Pereira-Suarez ◽  
Adrian Ramirez-de Arellano ◽  
Saul Ramirez-de los Santos ◽  
...  
Keyword(s):  
Epstein Barr Virus ◽  
Viral Infections ◽  
Close Association ◽  
Chronic Tonsillitis ◽  
Barr Virus ◽  
Ebv Infection ◽  
Inflammatory Processes ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Mexican Patients

Introduction: Epstein-Barr Virus (EBV) infection prevails in underdeveloped and developing countries. The tonsils seem to be candidate replication sites for EBV and some studies have exposed a close association among viral infections and chronic tonsillitis. The objective of this study was identifying the EBV prevalence in Mexican patients who had undergone tonsillectomy because of chronic tonsillitis. Methodology: Frozen tissues and medical records were obtained from 50 Mexican patients. DNA was extracted and subjected to PCR to amplify the EBER-2 region of EBV. Next, the patients were classified according to general and clinical characteristics searching a relation with the EBV-DNA positivity. Results: EBV genome was detected in 46% (23/50) of the analysed tonsil tissues. Trends were found regarding the relationship of viral presence with lower values in terms of age (6.1 ± 2.8 vs 7.6 ± 3.7) , a greater degree of hypertrophy (3.5 ± 0.4 vs 3.0 ± 0.6) and an increase in the number of episodes of tonsillitis (11 ± 7.4 vs 9 ± 6.5). Conclusions: The prevalence found of EBV-DNA positivity in tonsillar tissues from patients diagnosed with chronic tonsillitis , supports the fact that palatine tonsils can be occupied by EBV and highlights the importance of conducting future studies focused on understanding the role of the EBV infection in chronic inflammatory processes in the population involved in this study.

scholarly journals Clinical Warning of Hemophagocytic Syndrome Caused by Epstein-barr Virus

2020 ◽  
Author(s):  
Jinjin Shi ◽  
Chu Chu ◽  
Min Yu ◽  
Dandan Zhang ◽  
Yuqin Li ◽  
...  
Keyword(s):  
Laboratory Tests ◽  
Epstein Barr Virus ◽  
Hemophagocytic Syndrome ◽  
Clinical Manifestations ◽  
Prognostic Indicator ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
D Dimer

Abstract Objectives This study aimed to compare the clinical features and laboratory tests of infectious mononucleosis (IM) and hemophagocytic syndrome (HLH) caused by Epstein-Barr virus (EBV) in 1-3-year-old children and to explore the risk factor of HLH caused by EBV (EBV-HLH). Methods The clinical data of 92 children with EBV infection admitted in our hospital from 2011 to 2019 were collected; 61 cases were diagnosed as EBV-IM, and 31 cases were diagnosed as EBV-HLH. The subjects’ clinical manifestations and laboratory tests were analyzed retrospectively. Results Compared with EBV-IM patients, EBV-HLH patients had longer durations of fever, both before hospitalization and overall, and a higher probability of hepatomegaly. The levels of ALT, AST, LDH, TG, SF, D-Dimer and the plasma EBV DNA load of EBV-HLH patients were significantly higher than those of EBV-IM patients. The absolute values of CD3+, CD4+, CD8+, NK, and CD3-CD19+ cells and IgA and IgM levels of EBV-HLH patients were significantly lower than those of EBV-IM patients. The plasma EBV DNA load was positively correlated with the PT, TT, α-HBDH, AST, LDH, CK, Scr, BUN, UA, TG, and CRP levels in EBV-HLH patients, and the plasma EBV DNA load was positively correlated with the D-Dimer level in the EBV-IM patients. Among the 10 different potential markers, at the cut-off point of 1721.500 µg/L, the sensitivity and specificity of D-Dimer was 88.90% and 90.20%, respectively. Conclusion The D-Dimer level may be a good prognostic indicator of EBV-HLH caused by EBV.

scholarly journals Link of Nasopharyngeal Carcinoma and Epstein-Barr Virus

2018 ◽  
Vol 7 (2) ◽  
pp. 51-55
Author(s):  
Sugiyanto Sugiyanto ◽  
Lina Aryati ◽  
Fajar Adi Kusumo ◽  
Mardiah Suci Hardianti
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Carcinoma Cells ◽  
Lymphoid Cells ◽  
Epithelial Tissue ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Basic Level

Nasopharyngeal Carcinoma (NPC) is a cancer that occurs in nasopharynx which is associated with Epstein-Barr Virus (EBV). Mutation agents in nasopharyngeal neoplasms occur because of EBV infection. Transformation of B-cells due to EBV causes hormone imbalance in lymphoid cells or nasopharyngeal epithelial tissue. Rates of EBV infection have been shown to be prognostic to NPC. The basic level of EBV DNA can be used for stratification prognosis, with higher titers showing greater disease severity and worse outcomes. With mathematical models, there is a correlation between the increase in Epstein-Barr Virus and the increase in Invasive Carcinoma Cells or increase in Nasopharyngeal Carcinoma Cells.

scholarly journals Increasing Epstein-Barr virus infection in Chinese children: A single institutional based retrospective study.

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1211 ◽  
Author(s):  
Kiran Devkota ◽  
Maio He ◽  
Meng Yi Liu ◽  
Yan Li ◽  
You Wei Zhang
Keyword(s):  
Retrospective Study ◽  
High Risk ◽  
Virus Infection ◽  
Epstein Barr Virus ◽  
Severe Illness ◽  
Epstein Barr Virus Infection ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr

The Epstein-Barr virus (EBV) is a common virus in humans and the most common causative agent of Infectious Mononucleosis. EBV primary infection has recently risen in some countries and children below 2 years of age are highly susceptible. The clinical manifestations in children with EB virus infection involve multiple systems, causing severe illness, meaning attention should be paid during diagnosis and treatment. Objective:  This single institution based retrospective study was carried out with the aim of estimating the overall prevalence of EBV infection and identifying high-risk age group among children.  Methods: This study include total 253 patients under 15 years of age found to be  positive for EBV DNA by PCR who were admitted to the Pediatrics Department of Renmin Hospital,(Shiyan, China) during a 4-year period from 2014 to 2017. Patients were divided into three groups; 0-<4years, 4-<6years and 6-<15years. We then calculated the percentage and prevalence of EBV DNA-positive cases. Results: The yearly EBV prevalence rate was 4.99 per 1000 admissions in 2014, 6.97 per 1000 admissions in 2015, 10.42 per 1000 admissions in 2016, and 12.16 per 1000 admissions in 2017. Out of 253 EBV-positive cases, those under 4 years had the highest rate of EBV infection (74.7%). The rate drops to 11.06% in the 4-6 years group, and was 14.22% in the 6-15 years group. Those between 6 months and 1 year are those at the highest risk.  Conclusion: The rate of hospital admission of children due to EBV infection is increasing day by day. Children under 4 years of age are highly susceptible to infection and children of age between 6 months and 1 year are the high-risk group for EBV infection.

scholarly journals Clinical warning of hemophagocytic syndrome caused by Epstein-Barr virus

2020 ◽  
Author(s):  
Jinjin Shi ◽  
Chu Chu ◽  
Min Yu ◽  
Dandan Zhang ◽  
Yuqin Li ◽  
...  
Keyword(s):  
Laboratory Tests ◽  
Epstein Barr Virus ◽  
Hemophagocytic Syndrome ◽  
Clinical Manifestations ◽  
Prognostic Indicator ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
D Dimer

Abstract Objectives: This study aimed to compare the clinical features and laboratory tests of infectious mononucleosis (IM) and hemophagocytic syndrome (HLH) caused by Epstein-Barr virus (EBV) in 1-3-year-old children and to explore the risk factor of HLH caused by EBV (EBV-HLH). Methods: The clinical data of 92 children with EBV infection admitted in our hospital from 2011 to 2019 were collected; 61 cases were diagnosed as EBV-IM, and 31 cases were diagnosed as EBV-HLH. The subjects’ clinical manifestations and laboratory tests were analyzed retrospectively. Results: Compared with EBV-IM patients, EBV-HLH patients had longer durations of fever, both before hospitalization and overall, and a higher probability of hepatomegaly. The levels of ALT, AST, LDH, TG, SF, D-Dimer and the plasma EBV DNA load of EBV-HLH patients were significantly higher than those of EBV-IM patients. The absolute values of CD3 + , CD4 + , CD8 + , NK, and CD3-CD19 + cells and IgA and IgM levels of EBV-HLH patients were significantly lower than those of EBV-IM patients. The plasma EBV DNA load was positively correlated with the PT, TT, α-HBDH, AST, LDH, CK, Scr, BUN, UA, TG, and CRP levels in EBV-HLH patients, and the plasma EBV DNA load was positively correlated with the D-Dimer level in the EBV-IM patients. Among the 10 different potential markers, at the cut-off point of 1721.500 µg/L, the sensitivity and specificity of D-Dimer was 88.90% and 90.20%, respectively. Conclusion: The D-Dimer level may be a good prognostic indicator of EBV-HLH caused by EBV.

scholarly journals Epstein–Barr virus infection is associated with clinical characteristics and poor prognosis of multiple myeloma

2019 ◽  
Vol 39 (10) ◽  
Author(s):  
Bing Xia ◽  
Xi Wang ◽  
Ruifang Yang ◽  
Li Mengzhen ◽  
Kunpeng Yang ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Clinical Characteristics ◽  
Epstein Barr Virus ◽  
High Expression ◽  
Epstein Barr Virus Infection ◽  
Dna Concentration ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr

Abstract The aim of the present study was to evaluate the relationship of Epstein–Barr virus (EBV) infection and multiple myeloma (MM) and its impact on clinical characteristics and prognosis. Fresh peripheral blood mononuclear cells (PBMCs) from 139 MM patients who had been diagnosed and treated from January 2010 to May 2018 and 50 PBMC samples from healthy donors were obtained. PCR was carried out for detection of EBV-DNA. The results indicated a significantly higher EBV-DNA concentration among 139 MM patients compared with healthy controls (P&lt;0.05). Correlation analysis showed that the expression of EBV-DNA was positively correlated with the serum free light chain ratio (sFLCR) and progressive disease (PD)/relapse (P&lt;0.05). Especially, in EBV-DNA high-expression MM patients, EBV-DNA concentration for patients with sFLCR ≥100 was higher than that of patients with sFLCR &lt;100. EBV-DNA concentration was higher in patients with disease PD/relapse than those without disease PD/relapse. In univariate analysis, the progress free survival (PFS) was inferior in MM patients with high expression of EBV-DNA, high lactate dehydrogenase (LDH), and high-risk according to mSMART and International Myeloma Working Group (IMWG), stage III according to R-ISS staging, extramedullary lesions, and genetic changes (P&lt;0.05). However, in multivariate analysis, LDH, poor karyotype, R-ISS staging, and mSMART were independent prognostic factors for PFS. Taken together, our studies suggest that an association exists between EBV infection and clinical characteristics of MM patients, and EBV infection appears to have a slight impact on the prognosis of MM. However, the results require further validation in other independent prospective MM cohorts.

Clinical and Biological Factors Associated With Early Epstein-Barr Virus Infection in Human Immunodeficiency Virus–Exposed Uninfected Infants in Eastern Uganda

2020 ◽  
Author(s):  
Ana Montoya-Ferrer ◽  
Armen Sanosyan ◽  
Alexis Fayd’herbe de Maudave ◽  
Amandine Pisoni ◽  
Karine Bollore ◽  
...  
Keyword(s):  
Breast Milk ◽  
Epstein Barr Virus ◽  
First Year ◽  
Maternal Factors ◽  
Factors Associated ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Exposed Uninfected

Abstract Background Immune control of Epstein-Barr virus (EBV) infection is impaired in individuals with HIV. We explored maternal factors associated with EBV acquisition in HIV-exposed uninfected (HEU) infants and the relationship between EBV infection and serious adverse events (SAEs) during the first year of life. Methods 201 HEU infants from Uganda enrolled in the ANRS 12174 trial were tested for antiviral capsid antigen (anti-VCA) antibodies at week 50. Date of infection was estimated by testing EBV DNA at weeks 1, 6, 14, 26, 38, and 50 postpartum on dried blood spots. Results Eighty-seven (43%) infants tested positive for anti-VCA IgG at week 50. Among the 59 infants positive for EBV DNA, 25% were infected within the first 26 weeks. Almost half (12%) were infected before week 14. Shedding of EBV in breast milk was associated with EBV DNA in maternal plasma (P = .009), HIV RNA detection (P = .039), and lower CD4 count (P = .001) and correlated with plasma EBV DNA levels (P = .002). EBV infant infection at week 50 was associated with shedding of EBV in breast milk (P = .009) and young maternal age (P = .029). Occurrence of a clinical SAE, including malaria and pneumonia, was associated with higher levels of EBV DNA in infants (P = .010). Conclusions By assessing EBV infection in HEU infants we observed that infection during the first year is determined by HIV and EBV maternal factors and that EBV DNA levels were higher among infants with clinical SAEs.

Epstein-Barr Virus Infection In Recipient Of Allogeneic Hematopoietic Stem Cell Transplantation: The Role Of Cytomegalovirus

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 4555-4555
Author(s):  
Qifa Liu ◽  
Ren Lin ◽  
Can Liu ◽  
Meiqing Wu ◽  
Li Xuan ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Research Funding ◽  
Epstein Barr Virus ◽  
Hematopoietic Stem ◽  
Barr Virus ◽  
Ebv Infection ◽  
Associated Diseases ◽  
Ebv Dna ◽  
Epstein Barr

Background Epstein-Barr virus (EBV) infection is a common complication in recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT), leading to fatal post-transplant lymphoproliferative disorders (PTLD) and other EBV-associated diseases. A few studies suggested that cytomegalovirus (CMV) might play a role in PTLD. In this study, the effect of CMV on EBV DNA-emia and EBV-associated diseases was evaluated in the recipients of allo-HSCT. Methods Three hundred and fifty-two patients undergoing allo-HSCT were enrolled in this prospective study between July 2008 and June 2013. The EBV-DNA and CMV-DNA levels in blood and secretion were monitored by quantitative real-time polymerase chain reaction (RQ-PCR) before and in different time points after transplantation. EBV and CMV DNA-emia were diagnosed when EBV-DNA or CMV-DNA in the blood was positive twice consecutively. Results During the follow-up period, 99 patients (28.1%) developed EBV DNA-emia and 41 (11.6%) developed EBV-associated diseases including 27 EBV-associated PTLD and 14 other EBV-associated diseases. One hundred and fifty-nine patients (45.2%) developed CMV DNA-emia and 10 (2.8%) developed CMV-associated diseases. Of the 99 patients who developed EBV DNA-emia, 56 had CMV DNA-emia before EBV DNA-emia, and the median time from occurrence of CMV DNA-emia to EBV DNA-emia and EBV-associated diseases were 15 (range, 0-269) days and 26 (range, 0-255) days, respectively. Six patients developed co-existing CMV DNA-emia at the time of EBV-associated diseases diagnosed. DNA-emia before EBV infection had positive correlation with EBV DNA-emia (r=0.14, p=0.007) and EBV-associated diseases (r=0.15, p=0.005), but both correlation coefficients were weak. There was a strong positive correlation between EBV DNA-emia and EBV-associated diseases (r=0.56, p<0.001). The patients with CMV DNA-emia had a higher risk for developing EBV infection than those without (OR 2.279, 95% confidence interval [CI] 1.420-3.657, p=0.001). After EBV infection occurred, 15 patients developed CMV DNA-emia, including 4 developed CMV-associated diseases, at a median time of 33 days (range, 12-50 days). EBV infection was not related to CMV DNA-emia (p=0.87) or CMV associated diseases (p=0.27) occurring after EBV infection. Conclusion The results suggest that CMV may play a contributory role in the development of EBV DNA-emia and EBV-associated diseases. Disclosures: Liu: This work was supported by the National High Technology Research and Development Program of China (863 Program) (No. 2011AA020105), the National Public Health Grand Research Foundation (Grant No. 201202017).: Research Funding; This work was also supported by National Natural Science Foundation of China (Grant No.81000231, No.30971300, No.81270647), the Science and Technology Project of Guangdong Province of China (Grant No.2009A030200007).: Research Funding; This work was also supported by the Science and Technology Program of Guangzhou of China (11A72121174).: Research Funding.

scholarly journals Epstein-Barr virus-associated hemophagocytic syndrome: virological and immunopathological studies

Blood ◽  
1985 ◽  
Vol 65 (5) ◽  
pp. 1097-1104
Author(s):  
JL Sullivan ◽  
BA Woda ◽  
HG Herrod ◽  
G Koh ◽  
FP Rivara ◽  
...  
Keyword(s):  
Lymph Node ◽  
Epstein Barr Virus ◽  
Hemophagocytic Syndrome ◽  
Viral Infections ◽  
Cytotoxic T Cells ◽  
Peripheral Circulation ◽  
Barr Virus ◽  
Ebv Infection ◽  
Node Architecture ◽  
Epstein Barr

The virus-associated hemophagocytic syndrome (VAHS) is a disorder characterized by a benign, generalized histiocytic proliferation, with marked hemophagocytosis associated with systemic viral infections. We have studied the virological and immunopathological events occurring in two children experiencing Epstein-Barr VAHS. Neither of the patients had an underlying immunodeficiency and both recovered from their disease and are completely well one year after follow-up. In each patient, evidence for primary Epstein-Barr virus (EBV) infection was documented with a typical humoral immune response, including IgM antibody directed against virus capsid antigen. EBV was demonstrated in lymphoreticular tissues by electron microscopy and molecular hybridization studies. Permissive EBV infection was suggested by the finding of mature virus particles and linear viral DNA in lymphoreticular tissues. Immunopathological studies demonstrated complete effacement of lymph node architecture by a marked proliferation of immunoblasts in patient 1 and infiltration and effacement of the lymph node architecture with benign-appearing histiocytes in patient 2. Atypical lymphocytes characteristic of acute EBV infection were notably absent in the peripheral blood of both patients and cytotoxic T cells, which normally lyse EBV-infected B cells, were also absent from the peripheral circulation. Our observations suggest that EBV-induced VAHS may be the result of an increased virus burden in the face of immunoregulatory cell imbalances.

scholarly journals Clinical Features of Intestinal Ulcers Complicated by Epstein-Barr Virus Infection: Importance of Active Infection

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Yuyuan Liu ◽  
Yuqin Li ◽  
Yajun Li ◽  
Shuang Wu ◽  
Xinyue Tian ◽  
...  
Keyword(s):  
Clinical Features ◽  
Epstein Barr Virus ◽  
Negative Group ◽  
Abdominal Lymph Node ◽  
Positive Group ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Intestinal Ulcers

Clinical characteristics of intestinal ulcers complicated with Epstein-Barr virus (EBV) infection remain poorly studied. This study is aimed at providing further insight into clinical features of this patient cohort. The presence of serum EBV DNA was assessed in 399 patients with colonic ulcers, of which 30 cases were positive. In EBV-positive patients, the EBV-encoded RNA (EBER) was detected in intestinal tissues of 13 patients (EBER-positive group). The test was negative in 17 patients (EBER-negative group). Acute EBV infection rate in patients with colonic ulcer was 7.52%. Age and sex differences between two groups were not statistically significant. Fever, abdominal lymph node enlargement, and crater-like gouged ulcer morphology were more common in the EBER-positive group ( P < 0.05 ). The albumin level in the EBER-positive group was significantly lower compared to that in the EBER-negative group ( P < 0.05 ). The copy count of EBV DNA in the blood of patients from the EBER-positive group was higher, and the prognosis was worse ( P < 0.05 ). Clinical manifestations were more severe in the EBER-positive group. Endoscopic, histopathological, and biochemical findings were also more serious in this group of patients. The findings point to the importance of assessing the EBER expression in patients with intestinal ulcers of various etiology. EBER positivity should be viewed as a diagnostic marker of more severe condition requiring more aggressive treatment.

scholarly journals Clinical warning of hemophagocytic syndrome caused by Epstein-Barr virus

2020 ◽  
Author(s):  
Jinjin Shi ◽  
Chu Chu ◽  
Min Yu ◽  
Dandan Zhang ◽  
Yuqin Li ◽  
...  
Keyword(s):  
Laboratory Tests ◽  
Epstein Barr Virus ◽  
Hemophagocytic Syndrome ◽  
Clinical Manifestations ◽  
Prognostic Indicator ◽  
Barr Virus ◽  
Ebv Infection ◽  
Ebv Dna ◽  
Epstein Barr ◽  
D Dimer

Abstract Objectives: This study aimed to compare the clinical features and laboratory tests of infectious mononucleosis (IM) and hemophagocytic syndrome (HLH) caused by Epstein-Barr virus (EBV) in 1-3-year-old children and to explore the risk factor of HLH caused by EBV (EBV-HLH).Methods: The clinical data of 92 children with EBV infection admitted in our hospital from 2011 to 2019 were collected; 61 cases were diagnosed as EBV-IM, and 31 cases were diagnosed as EBV-HLH. The subjects’ clinical manifestations and laboratory tests were analyzed retrospectively.Results: Compared with EBV-IM patients, EBV-HLH patients had longer durations of fever, both before hospitalization and overall, and a higher probability of hepatomegaly. The levels of ALT, AST, LDH, TG, SF, D-Dimer and the plasma EBV DNA load of EBV-HLH patients were significantly higher than those of EBV-IM patients. The absolute values of CD3+, CD4+, CD8+, NK, and CD3-CD19+ cells and IgA and IgM levels of EBV-HLH patients were significantly lower than those of EBV-IM patients. The plasma EBV DNA load was positively correlated with the PT, TT, α-HBDH, AST, LDH, CK, Scr, BUN, UA, TG, and CRP levels in EBV-HLH patients, and the plasma EBV DNA load was positively correlated with the D-Dimer level in the EBV-IM patients. Among the 10 different potential markers, at the cut-off point of 1721.500 µg/L, the sensitivity and specificity of D-Dimer was 88.90% and 90.20%, respectively.Conclusion: The D-Dimer level may be a good prognostic indicator of EBV-HLH caused by EBV.

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