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Biomedical subjects

E H Beutner

Publications and source records attributed to E H Beutner.

At least 145 records · Page 8Linked to original sources

Dermatitis herpetiformis and bullous pemphigoid. Intermediate and mixed forms.

Nine patients had clinical and histological features suggestive of both dermatitis herpetiformis (DH) and bullous pemphigold (BP). Five patients responded to treatment with sulfapyridine or sulfones: in two the response was inconsistent, and the disease was controlled by combined treatment with prednisone; in one patient, there was no response to sulfapyridine or sulfones. Immunofluorescence studies showed IgA deposits in a linear homogeneous pattern at the basement membrane zone in all patients, and IgG was present in five. No circulating anti-basement membrane antibodies were detected by repeated immunofluorescence examinations. The authors conclude that the occasional overlapping of BP and DH should not lead to dropping the distinction between the two entities. For overlap cases that cannot be classified as BP or DH, the term "intermediate or mixed form of DH and BP" seems to be most suitable.

Aged↗

Herpes gestations with identical lesions in the newborn. Passive transfer of the disease?

Cutaneous lesions of herpes gestation is developed in a newborn on the fifth day of life and disappeared spontaneously after three weeks. The immunologic phenomena were analogous in the mother and child. No circulating or in vivo-bound immunoglobulins were demonstrated, but components 3 and 4 of complement were present at the basement membrane zone. We discuss a possible passive transfer of the disease to the newborn, and a supposedly pathogenetic role of immunologic phenomena in herpes gestationis.

Adult↗

Immunochemical localization of in vivo bound immunoglobulins in pemphigus vulgaris epidermis. Employment of a peroxidase-antiperoxidase multistep technique for light and electron microscopy.

A multi-step immunocytochemical method utilizing horseradish peroxidase (HRP) as an immunological marker was employed to demonstrate, at the ultrastructural level, IgG antiepithelial autoantibodies bound in vivo to pemphigus epidermis, and circulating IgG antibodies, using monkey oesophagus as substrate. To demonstrate IgG the following antisera were employed in sequential steps: Goat antihuman IgG; rabbit antigoat IgG; goat-anti-HRP-serum. After incubating with the final antigen, HRP, the latter was visualized with a cytochemical method. Results paralleled those obtained by immunofluorescence, the antiepithelial antibody being demonstrated at the sites of the intercellular spaces of the epidermis. Electron microscopic cytochemistry showed IgG in the surface coat of epidermal cells and in the intercellular space, both in the desmosomal and the interdesmosomal areas. These results confirm the results of a previous study but the localization of the antibody is more exact than that obtained with HRP-conjugates. The present method is more versatile and specific than HRP methods that utilize HRP-conjugated antibodies.

Animals↗

Immunologic phenomena in herpes gestationis.

Immunofluorescence findings are of diagnostic significance in herpes gestationis. The studies in two cases demonstrated some complement components (chiefly C3 and C4, but no C(1q)), without immunoglobulins at the basement membrane zone and with no circulating anti BMZ antibodies. In one case IgG were found at the BM zone in one biopsy specimen, but were not demonstrable in several other biopsies. The IF findings seem to indicate both the alternate and classical pathways of complement activation, and speak in favor of a relation between herpes gestationis and bullous pemphigoid, in which sometimes the immunoglobulins are also not demonstrable and the immunofluorescent pattern is very much like that of herpes gestationis.

Adult↗

Studies on defined immunofluorescence in clinical immunopathology. II. Relationship of F/P ratios pf conjugates and staining properties in indirect immunofluorescence.

The effect of conjugate F/P ratios on titers of patient antibodies was evaluated with two model systems in IIF chessboard titrations, notably, antinuclear antibodies and the intercellular antibodies of pemphigus. The plateau titers of both antibodies and F/P conjugate ratios were analyzed and proved to have a high degree of linear relationship statistically. Single titrations of other tissue antibodies, including skin basement membrane antibodies of bullous pemphigoid, MTA, GPA, SMA, and ThA with the same group of conjugates yielded similar information. A quantitative relationship between the two parameters was established.

Animals↗

Studies on defined immunofluorescence in clinical immunopathology. III. Past progress, some new methods, and prospects for the future.

Experience with chessboard titrations over the past 9 years has shown that essentially all indirect IF staining systems that employ anti-IgG conjugates can be defined with the aid of assays for F/P ratios and/or antibody concentrations. Some improvements in the radial diffusion assays for antibody protein have been effected by refinements in methodology. Studies with a form of the Dass system showed that over a 16-fold range of light intensities, relatively little change occurred in "titers" of IgG (comparably to titers of patient sera) or in PEP conjugates as seen in DASS chessborad titrations. An analysis of 233 PEP values included in 12 literature reports on indirect IF tests indicate that 88% fall within one doubling dilution of 1/16 unit/ml or about 12.5 mug labeled Ab/ml. The DASS reactions also are within this range. Factors responsible for variation beyond these limits in indirect IF tests were analyzed. The most important factor appears to be experimental errors. Other factors include low titers of primary antibodies, some aberrant conjugates, and a recent shift toward greater sensitivity of chessboard titrations. The latter appears to be due primarily to modes of reading and should be controlled by the constant use of reference sera. It now seems possibe that future IF studies may be defined with the aid of this DASS system. To achieve this goal, it will be necessary to not only elaborate microanalytic techniques of the type that have been considered at this Conference but also to generate macroanalytic methods that can be used in parallel with them as a basis for interpreting microscopic observations both in the DASS system and in IF studies of sera and tissues.

Animals↗

Diagnosis of systemic lupus erythematosus. Importance of antinuclear antibody titers and peripheral staining patterns.

Titers and patterns of antinuclear antibodies (ANA) in sera from 134 normal blood donors, 20 patients with rheumatoid arthritis, 15 patients with systemic scleroderma, and 32 patients with diagnosed or suspected systemic lupus erythematosus (SLE) were studied. The difference between the findings with sera of patients with SLE and normal subjects in terms of high (greater than 160) titers of ANA was greater than in terms of peripheral staining patterns. However, in comparing sera from patients with SLE with sera from patients with other connective tissue diseases, greater differences were found in the incidence of peripheral patterns of ANA compared to differences in the frequency of high ANA titers. Maximum specificity in the diagnosis of SLE was achieved when both titers and patterns of ANA were considered.

Adult↗

Diagnostic importance of immunofluorescence in oral bullous diseases and lupus erythematosus.

Immunofluorescent tests have proved to be of diagnostic importance for pemphigus, bullous pemphigoid, cicatricial pemphigoid, systemic lupus erythematosus, and discoid lupus erythematosus. Immunofluorescence test procedures, necessary specimens, and test findings have been reviewed as aids to dentists in the utilization and interpretation of these tests for the study of oral lesions.

Antibodies, Antinuclear↗

Herpetiform pemphigus, a variable pattern of pemphigus.

A patient with the clinical features of dermatitis herpetiformis and the histological features of pemphigus, subcorneal dermatosis and dermatitis herpetiformis did not respond to treatment with pyridine or sulfones. Systemic steroids and azothioprine were effective. Immunofluorescence studies demonstrated circulating pemphigus antibodies and IgG bound in vivo in the intercellular spaces of the epidermis.

Abscess↗

Incidence and titers of antinuclear, antismooth muscle, and other autoantibodies in blood donors.

Sera from 107 blood donors ranging in age from 18 to 66 years were tested by indirect immunofluorescence for titers of various autoantibodies. These were matched for sex in diffferent age brackets. Antinuclear antibody (ANA) titiers of 10 or more appeared in 45 per cent of the sera examined. However, only 5.6 per cent had ANA titers of 80 or more, and only one subject had a titer of 160. ANA titers of 80 or greater were only found in the oldest age group (51 years or older). In those subjects with detectable ANA, 57.7 per cent were female and 32.8 per cent were male. The prevalence of thyroid cytoplasm and gastric parietal cell antibodies also appeared both age and sex related, while smooth muscle antibodies did not. Anti-DNA antibody, pemphigus antibody, bullous pemphigoid antibody, and mitochondrial antibody were detected in none of the sera tested. No relationships were seen in pairs of autoantibodies.

Adolescent↗

Studies in immunodermatology. VI. IF studies of autoantibodies to the stratum corneum and of in vivo fixed IgG in stratum corneum of psoriatic lesions.

Indirect immunofluorescent (IF) tests on sections of normal human skin reveal the presence of antibodies to the stratum corneum in most normal human sera. Sera absorbed with hyperkeratotic scales gave negative reactions. These reactions appeared to correspond to those of the stratum corneum antibodies which were first detected by Krough and Tonder by immune adherence, though this remains to be documented since the conjugate alone stained the stratum granulosum in a pattern comparable to that of the IF staining reported by Krough. The staining was caused by conjugates with high but not by those with low fluorescein to protein ratios. In indirect IF tests, comparable titers of stratum corneum antibodies were found in sera of psoriasis patients and control subjects. Since they reacted with the stratum corneum of the antibody producer they are referred to as autoantibodies. Direct IF tests of psoriatic lesions revealed the presence of in vivo bound IgG as well as other immunoglobulins and complement in the stratum corneum. To differentiate staining with conjugated protein from direct and indirect IF staining of the stratum corneum a four-compartment test was devised. Skin sections were treated with saline or with stratum corneum antibodies and then with conjugates without (compartments 1 or 2) or with (compartments 3 or 4) anti-IgG antibodies. Sections were read by the method of Kawamura and his associates with both UV and BV illumination. Compartment 3 is a direct IF test and compartment 4 is an indirect IF test. In four-compartment tests performed on both biopsies of psoriatic lesions or scales the difference between compartments 1 or 2 and 3 affords a measure of in vivo bound IgG and the difference between compartments 3 and 4 provides information on the presence of free stratum corneum antigen. With this four-compartment test system it was found that in vivo fixation of IgG occurs in the intercellular areas of the stratum corneum of psoriatic lesions or scales and that this corresponds to the site of binding of the stratum corneum autoantibodies. This in vivo binding of IgG in the stratum corneum of psoriatic lesions resembles somewhat the intercellular fixation of IgG in the stratum spinosum in pemphigus. In the materials examined in these preliminary studies most, if not all of the stratum corneum antigen appeared to be covered with in vivo bound IgG.

Animals↗

Studies in immunodermatology. VII. Four-compartment system studies of IgG in stratum corneum and of stratum corneum antigen in biopsies of psoriasis and control dermatoses.

Biopsies of skin lesions from 50 cases of psoriasis and from 42 cases with other dermatoses were studied by the methods described in the foregoing report, that is by the four-compartment by the methods described in the foregoing report, that is by the four-compartment immunofluorescent (IF) system for detecting stratum corneum autoantibodies and in vivo binding of IgG in psoriatic scales at the site of the stratum corneum antigen. They were also studied histologically. Early and fully developed psoriatic lesions tended to have more widespread deposits of IgG in the stratum corneum than receding lesions. In biopsies with widespread IgG deposits the stratum corneum antigen usually could not be demonstrated because of blocking by in vivo bound IgG. Of the 42 control biopsies of skin lesions from patients with other dermatoses which were examined with this system two gave the IF staining patterns which were seen most commonly in psoriatic lesions. In these two cases strong widespread IgG deposits occurred in compartment 3, and 4 was very similar to compartment 3. One case was diagnosed as lichen planus and one as cornu cutaneum. Comparisons of the IF findings in psoriatic and control lesion biopsies indicate that significantly more of the former have: (1) IgG deposits at the combining sites of stratum corneum antibodies (92 vs. 50%) and (2) no demonstrable stratum corneum antigen because of 'blocking' by in vivo bound IgG, i.e. compartment 3 like 4 (56 vs. 7%). A highly significant inverse relation between the in vivo deposits of IgG and demonstrability of stratum corneum antigen appeared regardless of the clinical condition. This observation lends support to the view that the IgG which is bound to the sites of the stratum corneum antigen in ski; lesions may in fact be in vivo bound stratum corneum antoantibody.

Antigens↗