• Title/Summary/Keyword: Epstein-Barr virus

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Unrelated stem cell transplantation after reduced-intensity conditioning plus rituximab for Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis with CNS involvement (저강도 전처치와 rituximab 후 타인 조혈모세포 이식을 시행한 중추신경계를 침범한 Epstein-Barr 바이러스 관련 혈구포식 림프조직구증)

  • Baek, Hee Jo;Kook, Hoon;Han, Dong Kyun;Lee, Min-Cheol;Jeong, Tae Woong;Hwang, Tai Ju
    • Clinical and Experimental Pediatrics
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    • v.52 no.6
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    • pp.725-729
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    • 2009
  • Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (EBV-HLH) with central nervous system (CNS) involvement is usually fatal unless stem cell transplant (SCT) is offered. However, SCT with conventional intensity conditioning is associated with high transplant-related mortality. We describe our experience with unrelated SCTs after reduced-intensity conditioning (RIC) for patients with EBV-HLH with progressive CNS disease. This approach was associated with minimal toxicities and might be an effective option in patients with EBV-HLH with progressive CNS disease. Moreover, the addition of rituximab to RIC appears to be safe and effective in suppressing EBV in the patients with EBV-HLH.

Overlapping Guillain-Barr$\acute{e}$ syndrome and Bickerstaff's brainstem encephalitis associated with Epstein Barr virus

  • Rho, Young Il
    • Clinical and Experimental Pediatrics
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    • v.57 no.10
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    • pp.457-460
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    • 2014
  • A flaccid tetraparesis in Bickerstaff's brainstem encephalitis (BBE) is presumed to be a sign of overlapping Guillain-Barr$\acute{e}$ syndrome (GBS). In addition, BBE and Fisher syndrome, which are clinically similar and are both associated with the presence of the immunoglobulin G anti-GQ1b antibody, represent a specific autoimmune disease with a wide spectrum of symptoms that include ophthalmoplegia and ataxia. A 2-year-old boy presented with rapidly progressive ophthalmoplegia, ataxia, hyporeflexia, weakness of the lower extremities, and, subsequently, disturbance of consciousness. He experienced bronchitis with watery diarrhea and had laboratory evidence of recent infection with Epstein-Barr virus (EBV). He was diagnosed as having overlapping GBS and BBE associated with EBV and received treatment with a combination of immunoglobulin and methylprednisolone, as well as acyclovir, and had recovered completely after 3 months. In addition, he has not experienced any relapse over the past year. We suggest that combinations of symptoms and signs of central lesions (disturbance of consciousness) and peripheral lesions (ophthalmoplegia, facial weakness, limb weakness, and areflexia) are supportive of a diagnosis of overlapping GBS and BBE and can be helpful in achieving an early diagnosis, as well as for the administration of appropriate treatments.

Apoptotic Effects of Curcumin on the Epstein-Barr Virus-Transformed Human B Lymphoma Cells Activated by PWM (Curcumin이 PWM에 의해 활성화된 Epstein-Barr 바이러스 변형 사람 B 림프종 세포의 사멸에 미치는 효과)

  • Ryu, Sang-Chae;Lee, Jang-Suk;Chong, Myong-Soo;Lee, Ki-Nam
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.3
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    • pp.287-292
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    • 2012
  • The results of this study intended to clarify the apoptotic effects of curcumin on Epstein-Barr virus transformed human B lymphoma (EBV-B) cells are summarized as follows: It was found that curcumin induced endoplasmic reticulum(ER) stress as well as apoptotic cell death in EBV-B cells, although the magnitude of action was insignificant. When EBV-B cells activated by pokeweed mitogen (PWM) were treated with the same concentrations of curcumin, it was found that higher ER stress (GRP78, P-PERK, XBP-1, ATF6, and CHOP expressed) increased unfold protein response (UPR) and thus, apoptosis attributed to ER stress, compared to non-activated EBV-B cells In conclusion, it is expected that curcumin will play an important role for leukemia treatment.

Photosensitivity in Hydroa Vacciniforme Is A Photo- Koebner Phenomenon Induced by Infiltration of Epstein-Barr Virus-Infected NK/T Cells

  • Keiji Iwatsuki;Xu, Zi-Gang;Mikio Ohtsuka;Takenobu Yamamoto;Kazuyasu Fujii;Kazuhide Tsuji
    • Journal of Photoscience
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    • v.9 no.2
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    • pp.233-235
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    • 2002
  • Hydroa vacciniforme (HV) is a disease of Epstein-Barr virus (EBV)-associated NK/T cell lymphoproliferative disorder, and patients with severe HV-like eruptions have a high risk to progress to various EBV-related hematological complications. Photosensitivity in HV might be a 'photo-Koebner' phenomenon mediated by infiltration of EBV-infected NK/T cells.

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Inhibition of Epstein-Barr Virus by the Triterpenoid Betulin Diphosphate and Uvaol

  • Muhammad, Amjad;Carlson, Robert M.;Krasutsky, Pavel;Karim, M.Reza-Ul
    • Journal of Microbiology and Biotechnology
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    • v.14 no.5
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    • pp.1086-1088
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    • 2004
  • Betulin, a pentacyclic triterpenoid isolated from the bark of Betula papyrifera. Laboratory synthesized structural analogs were tested for antiviral activities against Epstein-Barr Virus (EBV) by immunofluorescent antiviral assay. Among the several analogs tested, betulin 3,28-diphosphate and uvaol exhibited significant antiviral activities against EBV. The $EC_{50}$ of betulin 3,28-diphosphate and uvaol was found to be $0.6\mu{M}$ and $0.7\mu{M}$ respectively.

A Case of Epstein-Barr Virus Infection with Gall Bladder and Common Bile Duct Stones in an Otherwise Healthy Child

  • Park, Jong-Hyun;Noh, Jin-Chul;Park, Hyang-Mi;Jung, Yu-Soek;Park, Sei-Hyeog;Hong, H. Christian;Shin, Hye-Jung
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.15 no.1
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    • pp.57-61
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    • 2012
  • Cholelithiasis and choledocholithiasis are uncommon pediatric diseases, although clinicians have seen them with increasing frequency in children in recent years. Moreover, no case of Epstein-Barr virus (EBV) infection with cholelithiasis and choledocholithiasis has been previously reported in the English literature. We report a pediatric patient with EBV infection, a gall bladder stone, and a common bile duct stone, may have had GB and CBD stones prior to her EBV infection, whom we successfully treated with antibiotics and laparoscopic cholecystectomy for cholecystitis.

Acute gastritis associated with Epstein-Barr virus infection in a child

  • Kim, Ji Mok;Song, Chun Woo;Song, Kyu Sang;Kim, Jae Young
    • Clinical and Experimental Pediatrics
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    • v.59 no.sup1
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    • pp.68-71
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    • 2016
  • Infectious mononucleosis is Epstein-Barr virus (EBV) inducing a self-limiting clinical syndrome characterized by fever, sore throat, hepatosplenomegaly, and generalized lymphadenopathy. Gastrointestinal symptoms of EBV infection are nonspecific and occur rarely. EBV inducing acute gastrointestinal pathology is poorly recognized without suspicion. Careful consideration is needed to diagnose gastric involvement of EBV infection including gastric lymphoma, gastric cancer, and gastritis. A few recent cases of gastritis associated with EBV infection have been reported in adolescents and adults. However, there is no report of EBV-associated gastritis in early childhood. We experienced a rare case of 4-year-old girl with EBV gastritis confirmed by in situ hybridization.

Simultaneous Detection of Cytomegalovirus, Epstein-Barr Virus, Hepatitis B Virus, and Parvovirus by a Multiplex PCR (다중 중합효소 연쇄반응을 이용한 DNA 바이러스의 동시검출)

  • Sung, Hye-Ran;Joo, Jin-Young;Lee, Chong-Kil;Chung, Yeon-Bok;Song, Suk-Gil
    • Korean Journal of Microbiology
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    • v.43 no.1
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    • pp.1-6
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    • 2007
  • We describe a multiplex PCR method that can detect and differentiate simultaneously four different kinds of DNA viruses, Epstein-Barr virus (EBV), cytomegalovirus (CMV), hepatitis B virus (HBV) and parvovirus B19 (B19). Primers for the multiplex PCR reaction were designed to amplify specific regions of the EBV (pol), CMV (pol), HBV (pol) and B19 (ns) viral genomes and used to simultaneously detect individual viruses. In order to achieve optimal sensitivity and specificity for multiplex PCR, the thermo-cycling parameters, primer sequences, and concentration of each reaction components were optimized systematically. The sensitivity of the detection method ranged between 5 and 10 copies of viral genome with a mixture of multiple primer pairs. Furthermore, this highly sensitive test showed no cross-reactivity among the four viruses. Thus, the results obtained in this study provide evidence that the assay system is a good tool for supporting the diagnosis of viral infection and contamination.

Herpes Infection (임상가를 위한 특집 3 - 헤르페스 감염)

  • Lee, Sang-Shin;Lee, Suk-Keun
    • The Journal of the Korean dental association
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    • v.48 no.5
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    • pp.365-370
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    • 2010
  • Herpes virus family is highly infectious to patients, their families and dentists. The diagnosis of herpes infection is based on the characteristic clinical appearance and the location of the lesions. Herpes Simplex Virus(HSV) usually acquired through direct contact with infected lesions or body fluids, and the prevalence of HSV infection increases progressively from childhood. Primary infections provoke herpetic gingivostomatis typically affects the tongue, lips, gingival, buccal mucosa and palate. Recurrent infections give rise to vesiculo-ulcerative lesions at vermilion border of lip(herpes labialis). In the form of chickenpox, Varicella Zoster Virus(VZV) usually is infected in childhood. VZV spreads in the affected primary afferent nerve to the skin and produces a vesicular rash and pain. Epstein-Barr Virus(EBV) infects B cells and cause infectious mononucleosis. Latent EBV infection has also been implicated in Burkitt lymphoma, nasopharyngeal carcinoma. Cytomegalovirus(CMV) is associated with immune-compromised patient such as organ transplantation and AIDS patients.

Determination of Frequency of Epstein-Barr Virus in Non-Hodgkin Lymphomas Using EBV Latent Membrane Protein 1 (EBV-LMP1) Immunohistochemical Staining

  • Ishtiaq, Sheeba;Hassan, Usman;Mushtaq, Sajid;Akhtar, Noreen
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3963-3967
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    • 2013
  • Background: The presence of Epstein-Barr virus (EBV) in Non-Hodgkin's lymphoma can be identified by immunohistochemistry for detection of EBV latent membrane protein (LMP). The role of EBV as an etiologic agent in the development of non-Hodgkin lymphoma has been supported by detection of high levels of latent membrane protein 1 (LMP-1) expression in tumors. However, no study has been conducted in a Pakistani population up till now to determine the frequency of Epstein-Barr virus positivity. The objective of our study was to determine a value for non-Hodgkin lymphoma patients using EBV LMP-1 immunostaining in our institution. Materials and Methods: This study was carried out at the Department of Histopathology, Armed Forces Institute of Pathology (AFIP), Pakistan from December 2011 to December 2012. It was a cross sectional study. A total of 71 patients who were diagnosed with various subtypes of NHL after histological and EBV LMP-1 immunohistochemical evaluation were studied. Sampling technique was non-probability purposive. Statistical analysis was achieved using SPSS version 17.0. Mean and SD were calculated for quantitative variables like patient age. Frequencies and percentages were calculated for qualitative variables like subgroup of NHL, results outcome of IHC for EBV and gender distribution. Results: Mean age of the patients was $53.6{\pm}16$ years (Mean${\pm}$SD). A total of 50 (70.4%) were male and 21 (29.6%) were female. Some 9 (12.7%) out of 71 cases were positive for EBV-LMP-1 immunostaining, 2 (22.2%) follicular lymphoma cases, 1 (11.1%) case of T-cell lymphoblastic lymphoma, 4 (44.4%) cases of diffuse large B cell lymphomas, 1 (11.1%) mantle cell lymphoma and 1 (11.1%) angioimmunoblastic T cell lymphoma case. Conclusion: In our study, frequency of EBV in NHL is 12.7% and is mostly seen in diffuse large B cell lymphoma. This requires further evaluation to find out whether this positivity is due to co-infection or has a role in pathogenesis.