Search PubMed⌕ Search

Biomedical subjects

B F Vestergaard

Publications and source records attributed to B F Vestergaard.

At least 91 records · Page 5Linked to original sources
PubMed1978

Crossed immunoelectrophoretic analysis and viral neutralizing activity of five monospecific antisera against five different herpes simplex virus glycoproteins.

Crossed immunoelectrophoresis of Triton X-100 solubilized HSV-infected cells has identified several major HSV glycoprotein antigens in the precipitating profile. Immunization of rabbits with the corresponding precipitates resulted in the production of monospecific antisera against the antigen part of the precipitate. The immunological importance of five different HSV glycoproteins in respect of their representation on the outer virion envelope as targets for neutralizing antibodies was evaluated by comparison of immunoprecipitating activity and neutralizing potency of the corresponding monospecific antisera.

Antibodies, Viral↗
PubMed1978

Rapid diagnostic tests for cutaneous eruptions of herpes simplex.

Comparison was made of the results of virus isolation, indirect immunofluorescent staining (IF-test) and Tzanck smears from 32 patients with cutaneous eruptions clinically diagnosed as herpes simplex. Herpesvirus hominis was isolated from 21 patients; IF-test was positive in 22 patients; Tzanch smears were positive in 20 patients. 23 to 25 of the 25 patients in whom one of the diagnostic tests was positive could be identified by a combination of any two of the diagnostic methods employed. No false-positive reactions were observed for IF-test or Tzanck smear.

Cytodiagnosis↗
PubMed1977

Microorganisms in recurrent aphthous ulcerations.

Qualitative and quantitative examinations of the cultivable bacterial flora in biopsies from recurrent aphthous ulcerations (RAU), experimental oral ulcerations (EOU), and normal oral mucosa (NOM) were carried out under aerobic and continuous anaerobic conditions. An attempt was made to culture yeasts, mycoplasma, and virus from the biopsies of RAU, which were also tested for the presence of herpes virus antigen by the fluorescent antibody method. The predominant bacteria recovered in RAU were alpha-hemolytic streptococci, coagulase-negative staphylococci, and Neisseria. In EOU the main recoveries were alpha-hemolytic streptococci, Corynebacterium, Veillonella, Neisseria, and Haemophilus. In NOM alpha-hemolytic streptococci dominated the cultures. Yeasts were only cultured from one patient with RAU. No mycoplasmas or viruses were isolated, nor was herpes virus antigen demonstrated in any of the RAU specimens. The role of the microorganisms in the pathogenesis of RAU is discussed.

Adolescent↗
PubMed1977

Titration of herpes simplex virus antibodies in human sera by the enzyme-linked immunosorbent assay (ELISA).

100 sera from healthy adults were titrated simultaneously for herpes simplex virus (HSV) antibodies by ELISA and neutralization. The ELISA was performed on microtitre plates where approximately 100 ng of detergent solubilized and chromatographically purified HSV glycoproteins was bound covalently to the plastic bottom of each well. The optical density (OD) values obtained by the use of the peroxidase-1.2phenylendiamindihydrochloride system showed good correlation with the neuratlizing antibody titres. Sera with very low neutralizing titres were clearly positive in ELISA.

Adult↗
PubMed1977

Polyacrylamide gel electrophoretic analysis of herpes simplex virus type 1 immunoprecipitates obtained by quantitative immunoelectrophoresis in antibody-containing agarose gel.

Crossed immunoelectrophoresis was used to characterize herpes simplex virus type 1 (HSV-1) antigens produced by infected HEp-2 cells. We report on a method for analyzing the polypeptide content in individual antigen-antibody precipitates eluted from the second-dimensional agarose gel. Four glycoprotein antigens of HSV-1, Ag-8, Ag-11, Ag-6, and Ag-3, were isolated and analyzed for polypeptide content. The molecular weights of the polypeptides are presented.

Antigens, Viral↗
PubMed1977

Crossed immunoelectrophoretic studies of the solubility immunogenicity of herpes simplex virus antigens.

The nonionic detergent Triton X-100 was capable of solubilizing 90% of the protein content in herpes simplex virus (HSV)-infected rabbit cornea cells. The solubilized HSV antigens formed well-characterized precipitates by crossed immunoelectrophoresis in Triton X-100-containing agarose gel, allowing both identification and relative quantitation. Water-soluble and detergent-requiring HSV antigens were identified by different solubilization procedures in buffer with and without detergent. Five glycoprotein antigens were solubilized only in the presence of detergent, indicating their membrane-bound state. One non-glycosylated antigen was present in both a water-soluble and a membrane-bound form. Based upon the crossed immunoelectrophoretic precipitating patterns of Triton X-100-solubilized HSV antigens, it has been estimated that infected cells yield an amount of virus-specific protein equivalent to 2,000 enveloped virions per cell. Rabbits inoculated intracutaneously with Triton X-100-solubilized HSV antigens developed neutralizing antibodies against HSV almost as effectively as rabbits with an active HSV infection. Precipitins against individual HSV antigens in sera from rabbits infected with HSV and immunized with the Triton X-100-solubilized HSV antigens were assayed by the crossed immunoelectrophoretic technique. Sera from infected rabbits reacted more strongly and with a higher number of HSV antigens than sera from immunized rabbits.

Animals↗
PubMed1977

IgG, IgA and IgM antibody responses in patients with acute genital and non-genital herpetic lesions determined by the indirect fluorescent antibody method.

A total of 112 cases from 12 cases of non-genital herpes simplex, 13 cases of herpes genitalis and 60 selected controls was titrated by the indirect fluorescent antibody method for IgG, IgA and IgM antibodies against herpes simplex virus (HSV) type 1 and type 2. Mean titres of IgA against HSV type 1 were 6-8 times higher in patients with acute and recent non-genital herpes simplex than the mean titres of the controls, while the corresponding mean titres were only slightly elevated in patients with herpes genitalis. In this latter group of patients IgA antibody titres to HSV type 2 were 4 times higher than the control titres. IgM antibody titres were not elevated in patients with non-genital herpes simplex, but in patients with herpes genitalis IgM antibodies to HSV type 2 increased to 4 times the normal values 2-4 weeks after infection. Measurement of serum IgA antibodies to HSV types 1 and 2 might be an important diagnostic tool in acute and recent HSV infections.

Acute Disease↗
PubMed1975

Demonstration by immunoelectro-osmophoresis of precipitating antibodies to a purified rubella virus antigen.

The nonionic detergent Triton X-100 was used to extract antigens of rubella virus from infected tissue culture cells. Three virus-specific antigens were demonstrated by crossed immunoelectrophoresis by using a pool of human gamma globulin as antiserum. The most dominant of these antigens were purified by ion-exchange chromatography on diethylaminoethyl-cellulose. This antigen was of glucoprotein nature and had slow electrophoretic motility and low binding capacity to diethylaminoethyl-cellulose. Thus, it seems likely that the antigen is identical with the precipitating antigen of rubella virus designated b-antigen or tro-osmophoresis with precipiting antibody in sera obtained from patients recovering from acute postnatal rubella. The precipitin reaction that could be correlated to the hemaglutination-inhibition titers of the same sera appeared 12 days after onset of the disease and remained positive for several years.

Animals↗