Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0021345 (infectious mononucleosis)
 3,358 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a study of lymphocyte subpopulations in peripheral blood during infectious mononucleosis the lymphocytosis was found to be of T-cell origin (i.e. E-RFC), while the number of non T lymphocytes (i.e. EA-, EAC-RFC and SmIg + ve cells) was normal in 7 out of 8 patients. Ten patients were tested for the presence of HLA-DR determinants on their B and T cells and not only B lymphocytes but also a great part (31--75%) of T cells were lysed by the anti HLA-DR testsera, indicating that HLA-DR determinants are expressed on a population of T cells in IM patients. After recovery all patients were retested and showed a normal pattern of HLA-DR typing. This indicates an increase of HLA-DR antigens on T cells or a vigorous proliferation of a small DR-positive T-cell subpopulation during the acute stage of IM.
 ...
PMID:Lymphocyte subpopulations in man. Expression of HLA-DR determinants on human T cells in infectious mononucleosis. 8 94

The principle of the lymphocyte transformation test is represented and the present knowledge of the partially selective effect of various unspecific mitogenes on different lymphocyte populations is referred to. Problems of methodology are briefly dealt with and the possibilities of applying the lymphocyte transformation test is referred to in detail. Own experiences are reported on the basis of clinical examples in patients affected with malign lymphoma, infectious mononucleosis and polymyositis.
 ...
PMID:[Lymphocyte transformation test--basis and clinical use]. 8 64

Symptoms and serological tests in a 19-year-old man with pneumonia indicated that he had infectious mononucleosis. Adenovirus type 7 was demonstrated in the lung by electron microscopy and was cultured from the liver, lung, lymph-nodes, and kidney.
 ...
PMID:Fatal adenovirus infection with misleading positive serology for infectious mononucleosis. 8 50

Prospective studies demonstrated variable phenotypic expression of the X-linked recessive lymphoproliferative syndrome (X.L.R.L.S.) in three brothers: (1) hypogammaglobulinaemia and subclinical Epstein-Barr-virus (E.B.V.) infection with antibody response to E.B.V.; (2) E.B.V. infection with defective immune response to E.B.V., fatal infectious mononucleosis (I.M.), and immunoblastic lymphoma; and (3) histiocytic lymphoma. Hypogammaglobulinaemia and measles pneumonitis had preceded infection with E.B.V. The diverse phenotypic expressions probably resulted from the varied immune response to E.B.V. Recombination of X chromosomes was documented by Xg-blood-group studies in a survivor. E.B.V. can induce fatal I.M. and malignant lymphoma in X.L.R.L.S., but an immune response to E.B.V. can be protective.
 ...
PMID:Epstein-Barr virus infections in the X-linked recessive lymphoproliferative syndrome. 8 16

Lymphocytes from 80% of patients with infectious mononucleosis in this study failed to produce macrophage migration-inhibition factor in response to partially purified early antigen of Epstein-Barr virus or to tetanus toxoid, whereas lymphocytes from normal subjects did produce this lymphokine. Subsequent analysis of serum from the patients with infectious mononucleosis revealed a serum factor that completely abrogated antigen-specific inhibition of migration by human leukocytes as well as lymphocyte blastogenesis. The serum blocking factor was present in sera from 11 (73%) of 15 patients with infectious mononucleos but only in sera from two (13%) of 15 normal subjects. Samples of serum from five of the patients with infectious mononucleosis and five normal subjects were fractionated with use of Sephadex G-200 gel filtration, and the eluants were assayed for several substances known to inhibit cell-mediated immunity. Serum blocking factor activity could be demonstrated only in fractionated sera from patients with infectious mononucleosis. The serum blocking factor is postulated to be either a soluble immune complex or some as yet unidentified immunoregulatory globulin contained in the IgG fraction of human serum.
 ...
PMID:Abrogation of cell-mediated immunity by a serum blocking factor isolated from patients with infectious mononucleosis. 8 89

In an attempt to qualitatively identify the membrane antigen (MA) complex induced by Epstein-Barr virus (EBV) infection of lymphoblastoid cells, superinfected Raji cells were surface labelled with 125I by the lactoperoxidase method and solubilized with Triton X-100, then the 125I-labelled membrane proteins were precipitated by sera containing high antibody titers to MA. Analysis of these immune precipitates on sodium dodecyl sulfate polyacrylamide gel eletrophoresis identified four major EBV-specific membrane proteins with molecular weights (mol. wt) of 280,000, 250,000, 170,000 and 90,000. Sera from patients with Burkitt's lymphoma (BL), nasopharyngeal carcinoma (NPC) and infectious mononucleosis (IM) and from EBV-infected disease-free individuals showed differential patterns of reactivity to these antigens with some sera only recognizing three or less of the antigens. The results from invesigations with these sera also indicated that these major proteins were not related to EBV-induced viral capsid antigens (VCA) or the virus-associated early antigen (EA) complexes as defined by immunofluorescence. Metabolic labelling of EBV-infected Raji cells with [14C]glucosamine, followed by Triton X-100 solubilization and radioimmune precipitation, identified the 280,000, 250,000 and 90,000 components as glycoproteins. The lactoperoxidase-labelled 170,000 molecular weight component was not significantly glycosylated and, therefore, could not be categorized as a glycoprotein on the basis of this study. In addition, a glycoprotein with a mol. wt of 130,000 was identified by this approach which also appeared to be specified by EBV. The results from these investigations, therefore, indicated that the EBV-induced MA complex was composed of four major glycoproteins and one nonglycosylated high mol. wt protein.
 ...
PMID:Epstein-Barr virus-induced membrane antigens: immunochemical characterization of Triton X-100 solubilized viral membrane antigens from EBV-superinfected Raji cells. 8 99

Cells and cell-free material in saliva, parotid secretions, and throat washings from patients with acute infectious mononucleosis and patients undergoing tonsillectomy were assayed for the presence of infectious Epstein-Barr (EBV) virus. The agent was invariably present in cell-free form in saliva; neither infectious virus nor viral antigens were found in the cells. Tonsillar lymphocytes from eight patients were also free of EBV. In 10 of 40 patients virus was recovered in secretions from parotid-gland orifices or ducts. These findings suggest that the salivary glands are the site of EBV production in the oropharynx.
 ...
PMID:Site of Epstein-Barr virus replication in the oropharynx. 9 88

A patient with infectious mononucleosis and immune hemolytic anemia is described. The hemolysis was mediated by the temporary appearance of both a serum IgM anti-i cold agglutinin and an increase of red blood cell i antigen. The cold agglutinin had a high titer, low thermal amplitude and cold-warm hemolytic activity.
 ...
PMID:IgM cold-warm hemolysins in infectious mononucleosis. 9 78

Smooth muscle autoantibody (SMA) was first found in the sera of patients with chronic active hepatitis and subsequently in the sera of patients with other autoimmune liver diseases, viral infections, certain cancers, heroin addicts and female infertility. SMA from patients with chronic active hepatitis reacts with many muscle and 'non-muscle' tissues while SMA from patients with other diseases usually reacts only with smooth muscle. These differences in immunofluorescent staining reactions suggest that SMA is a heterogeneous group of autoantibodies reactive with different smooth muscle autoantigens. As further evidence for this are findings that broad-reacting SMA can be absorbed out by actin, whereas autoantibodies reactive only with smooth muscle cannot, and that different SMAs give different immunofluorescent staining patterns using fibroblasts in tissue culture. Such staining patterns correspond to reactivity with either microfilaments, microtubules or intermediate filaments, ubiquitous cytoplasmic structures which make up the 'cytoskeleton'. Autoantibodies to actin-like microfilaments appear specific for chronic active hepatitis, autoantibodies to microtubules occur in infectious mononucleosis whereas autoantibodies to intermediate filaments occur in infectious hepatitis, chickenpox, measles and mumps. Predictably, future studies will show that presence of SMA with specificities for other proteins in the three types of cytoplasmic filaments, and given more information on antigenicity of the proteins and pathogenicity of the corresponding autoantibodies.
 ...
PMID:Smooth muscle autoantibodies and autoantigens. 9 95

The immune response of eight patients with mononucleosis caused by cytomegalovirus (CMV) was measured early in their illness--when virus was present in their urine and/or blood--and subsequently during convalescence. Levels of CMV-specific antibody rose early in the illness, but the proliferative response of mononuclear cells to CMV antigen did not reach the level characteristic of CMV-immune donors until several months later. The production of interferon by mononuclear cells in response to CMV antigen was also low early in the illness. Although these patients had prior immunity to herpes simplex virus and varicella-zoster virus, their mononuclear cells responded poorly to antigens prepared from these viruses. The proliferative response to these antigens returned to normal in parallel with the development of a normal response to CMV. It is suggested that acute CMV mononucleosis suppresses the proliferative response of human mononuclear cells.
 ...
PMID:Immune response to herpesvirus antigens in adults with acute cytomegaloviral mononucleosis. 9 36


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>