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Query: UMLS:C1396851 (Epstein)
 24,119 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Mycocarditis is an uncommon manifestation and, very rarely, a lethal complication of infectious mononucleosis. A 14-year-old girl initially had exudative pharyngitis and splenomegaly and developed refractory ventricular fibrillation. The diagnosis of infectious mononucleosis was confirmed by both a strongly positive heterophil antibody test and a high titer of Epstein-Barr virus. Pathologic studies demonstrated extensive histiocytic and lypmhocytic infiltration of the myocardium.
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PMID:Infectious mononucleosis and fatal myocarditis. 19 86

Several viruses induce tumors in animals under experimental or natural conditions. It is likely therefore that some human malignancies are also caused by viruses. Proof of this hypothesis can be provided only by indirect evidence based on the following criteria: (1) detection of viral antigens or viral genetic information in a given tumor; (2) transformation of normal human cells by the virus in tissue culture; (3) induction of tumors in animals by the virus; and (4) demonstration of enhanced titers of antibodies to the virus in patients bearing the tumor. These criteria have been fulfilled to support a causal relationship of the Epstein-Barr virus (EBV) in Burkitt's lymphoma and nasopharyngeal carcinoma. It is clear, however, that factors of a genetic, immunologic or environmental nature must play an additional role because EBV, the cause of infectious mononucleosis, is widely disseminated yet development of the tumors is a rare event.
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PMID:[Factors involved in the development of human tumors using the Epstein-Barr virus as an example (author's transl)]. 19 3

Investigation of a family with cancer in boys revealed that at least 20 males had the X-linked recessive lymphoproliferative syndrome. A variety of phenotypes occurred: aproliferative phenotypes consisted of aplastic anemia, agranulocytosis or acquired hypogammaglobulinemia; and proliferative phenotypes of B cells included disorders associated with the Epstein-Barr virus, American Burkitt's lymphoma, immunoblastic sarcoma of B cells, fatal infectious mononucleosis or plasmacytoma. The lymphoproliferative disorders observed in males could have resulted from an immunodeficiency to Epstein-Barr virus. The variable phenotypic expression could have resulted from individual differences in the viral dose, duration of exposure and age at which the boys were exposed to the virus. Aproliferative phenotypes such as acquired hypogammaglobulinemia could have ensued from excessive suppressor-cell activity on B cells, whereas proliferative phenotypes such as Burkitt's lymphoma or fatal infectious mononucleosis could have resulted from infection by Epstein-Barr virus and failure to stop proliferation of B cells.
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PMID:Variable phenotypic expression of an X-linked recessive lymphoproliferative syndrome. 19 60

Twenty-three patients with recent infectious mononucleosis were studied for cell-mediated immunity to Epstein-Barr virus (EBV)-associated antigens. By means of a virion-containing antigen preparation, (P3J), leukocyte migration inhibition was demonstrated in 6 of 13 patients with acute infectious mononucleosis (IM) and in 6 of 10 patients studied during the convalescent period. Inhibition with a soluble antigen (S) preparation was seen in only a few patients at all stages of the illness. Lymphocyte blast transformation on exposure to P3J occurred in 4 of 9 patients with acute IM; no other study group reacted. Control donors lacking anti-EBV antibodies did not demonstrate migration inhibition or blast transformation with either P3J or S. Control donors with evidence of previous EBV infection did demonstrate migration inhibition with P3J (8 of 12) and S (3 of 10). These studies indicated that cell-mediate immunity to EBV-associated antigens could be detected by either leukocyte migration inhibition or lymphocyte blast transformation, but neither assay is diagnostic of infectious mononucleosis.
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PMID:Cell mediated immunity during infectious mononucleosis to Epstein-Barr virus associated antigens. 19 44

A method has been evolved for the demonstration of Epstein-Barr virus (EBV) and cytomegalovirus (CMV) infection in 83 cases of infectious mononucleosis. Serum samples were tested for EBV IgM, anti-VCA IgG, anti-EBNA, CMV IgM and CMV IgG antibodies. An acute-phase sample (or samples) and a convalescence sample were examined in each case, and in 44 cases an additional samples was examined 5-12 months after the illness. Since the different antibodies showed characteristic differences in both titre and persistence, a reliable serodiagnosis has become possible. Acute EBV infection is characterized by the presence of EBV-VCA IgG and EBV IgG antibodies and the lack of anti-EBNA. The latter becomes demonstrable as late as the 4th to 5th month after infection. Mean age of the patients was 19 years. EBV infection was demonstrated in 65%, CMV infection in 18% of the cases. In 12% double infection seemed to be probable.
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PMID:Epstein-Barr virus and cytomegalovirus antibodies in infectious mononucleosis. 20 Nov 53

In an attempt to associate oropharyngeal excretion of Epstein-Barr (EB) virus with lymphoproliferative disorders other than infectious mononucleosis, we tested throat gargles collected from adult subjects for the EB virus. Nine (16%) of 55 healthy persons were positive. High EB virus-excretion rates were found among patients with active acute lymphocytic leukemia (6/6, 100%), among renal homograft recipients during the third to 12th month after transplantation (26/30, 87%), and among critically ill patients with leukemia-lymphoma (14/19, 74%). Moderately high excretion rates were found among patients with myeloma (7/16, 44%), patients with poorly differentiated lymphocytic lymphoma (5/11, 44%), critically ill patients with solid cancers (15/37, 41%), and patients with chronic myelogenous leukemia (8/21, 38%). Our data suggested that the higher than normal excretion rate is realted to the basic disease process and to the general health status but not to the duration of cancer chemotherapy.
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PMID:Oropharyngeal excretion of Epstein-Barr virus by patients with lymphoproliferative disorders and by recipients of renal homografts. 20 83

Recent elucidation of the relationship between the Epstein-Barr virus and infectious mononucleosis has resulted in the development of new diagnostic serological tests, and has amplified our knowledge of the epidemiological and clinical aspects of the disease. The history, epidemiology, clinical characteristics, diagnostic features, and therapy of infectious mononucleosis are reviewed. This is done in the light of recent knowledge concerning the Epstein-Barr virus as well as previous studies employing the traditional diagnostic criteria of heterophil positivity, the classical clinical symdromes, and characteristic changes in the blood cell count. Immunological studies concerning host resistance and its occasional failure are reviewed with particular reference to T and B lymphocyte activity in the disease.
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PMID:Infectious mononucleosis and the Epstein-Barr virus. 20 84

Tonsillar tissue may be the primary site of infection with Epstein-Barr virus (EBV), the etiologic agent of classical infectious mononucleosis (IM). Therefore, a retrospective study of the association between tonsillectomy and IM was performed in a college student population. In the first part of the study, tonsillectomy rates were compared between 164 IM-positive students and 164 student controls who attended UCLA in 1972-1975. Although it was determined that the development of IM during college years was statistically less commin in tonsillectomized students, the difference was not inordinately large and probably had no significant biologic meaning. The authors speculate that the difference was due to the greater likelihood, and greater yield, in considering the diagnosis of IM in young adults with enlarged, inflamed tonsils. In support of this is the fact that IM-positive students who had received a prior tonsillectomy usually had the surgical procedure performed at a younger age than the control group. Conceivably, tonsillar ablation in the very young is more liable to result in incomplete removal and eventual regrowth of this tissue. Indeed, six IM-positive students who had received a tonsillectomy at six years of age or less were found to have exudate in tonsillar fossae or pillars during their IM episode. In the second part of the study, clinical and laboratory measures were found to be similar between a larger group of IM-positive students with or without a history of prior tonsillectomy.
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PMID:Tonsillectomy and infectious mononucleosis. 20 87

Previous kinetic and absorption hybridization experiments had demonstrated that the DNA of the B95-8 strain of Epstein-Barr virus was missing approximately 10% of the DNA sequences present in the DNA of the HR-1 strain (R.F. Pritchett, S.D. Hayward, and E. Kieff, J. Virol. 15:556-569, 1975; B. Sugder, W.C. Summers, and G. Klein, J. Virol. 18:765-775, 1976). The HR-1 strain differs from other laboratory strains, including the B95-8 and W91 strains, and from virus present in throat washings from patients with infectious mononucleosis in its inability to transform lymphocytes into lymphoblasts capable of long-term growth in culture (P. Gerber, Lancet i:1001, 1973; J. Menezes, W. Leibold, and G. Klein, Exp. Cell. Res. 92:478-484, 1975; G. Miller, D. Coope, J. Niederman, and J. Pagano, J. Virol. 18:1071-1080, 1976; G. Miller, J. Robinson, L. Heston, and M. Lipman, Proc. Natl. Acad. Sci. U.S.A. 71:4006-4010, 1974). In the experiments reported here, the restriction enzyme fragments of Epstein-Barr virus DNA which contain sequences which differ among the HR-1, B95-8, and W91 strains have been identified. The DNA of the HR-1, B95-8, and W91 strains each differed in complexity. The sequences previously shown to be missing in the B95-8 strain were contained in the EcoRI-C and -D and Hsu I-E and -N fragments of the HR-1 strain and in the EcoRI-C and Hsu I-D and -E fragments of the W91 strain. The HR-1 strain was missing DNA contained in EcoRI fragments A and J through K and Hsu I fragment B of the B95-8 strain and in the EcoRI-A and Hsu I-B fragments of the W91 strain. The relationship of these data to the linkage map of restriction enzyme fragments of the DNA of the B95-8 and W91 strains (E. Kieff, N. Raab-Traub, D. Given, W. King, A.T. Powell, R. Pritchett, and T. Dambaugh, In F. Rapp and G. de-The, ed., Oncogenesis and Herpesviruses III, in press; D. Given and E. Kieff, submitted for publication) and the possible significance of the data are discussed.
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PMID:DNA of Epstein-Barr virus. III. Identification of restriction enzyme fragments that contain DNA sequences which differ among strains of Epstein-Barr virus. 21 Dec 67

Occurrence of immune complexes in infectious mononucleosis has been investigated by the 125I Clq binding assay. Increased serum Clq-binding activity was found in 87% of the 23 patients studied during the acute stage of the disease. The serum Clq-binding material detected has properties identical to those of immune complexes. IgG antibodies dissociated from the complexes at acid pH and F (ab)'2 fragments obtained after treatment by pepsin appeared to be directed against the viral capsid antigen of Epstein-Barr virus.
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PMID:[Incidence and specificity of circulating immune complexes in infectious mononucleosis (proceedings)]. 21 80


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