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Biomedical subjects

D Petzoldt

Publications and source records attributed to D Petzoldt.

At least 145 records · Page 8Linked to original sources

[Penicillinase-producing Neisseria gonorrhoeae].

The present state of epidemiology and the microbiology of beta-lactamase-producing N. gonorrhoeae are reviewed. Methods of identification of such strains and therapeutic consequences are discussed.

Cephalosporinase↗

[Acute febrile neutrophilic dermatosis Sweet's syndrome].

Acute febrile neutrophilic dermatosis was diagnosed in three middle-aged women. It started characteristically one to three weeks after infection of the upper respiratory tract with sudden fever and painful, inflammatory, multiform skin lesions. There was marked leucocytosis and neutrophilia. The disease is characterized by dense, perivascular, neutrophil-granulocytic infiltrates associated with lymphocytic-histocytic reactions at the margins. Site and dynamics of the histological changes suggest an immune-complex disease. However, direct immunofluorescence has not given any characteristic findings. In general the prognosis is good, the disease rapidly responding to systemic glucocorticoids. But there are also spontaneous remissions, as in two of the described cases.

Biopsy↗

[Incidence of autologous spermatozoa antibodies in a group of unselected andrologic patients].

Determination of autologous sperm antibodies in the serum of 278 male adults of an unselected andrological patient material is reported. Positive test results were found in 3 patients using the macroscopic agglutination test according to Kibrick (1.1%), in 21 patients using the microscopical agglutination test according to Franklin-Dukes (7.6%), in 2 patients using the immobilization test according to Isojima (0.7%) and in 1 patient using the indirect immunofluorescence technique according to Coons and Kaplan (0.4%). Comparing the macroscopic and microscopic agglutination test a high degree of unspecific agglutinations were found in the latter excluding the microscopical agglutination test for the determination of antibodies. The relatively rare occurrence of autologous sperm antibodies in an unselected andrological patient material points to the fact that immunological methods seem to play no significant role in the diagnosis of male subfertility.

Antibody Formation↗

[The indirect immunofluorescence test for the identification of auto-immune skin diseases (author's transl)].

The indirect immunofluorescence test has acquired great importance in the diagnosis of auto-immune skin diseases. Since it is sufficient only to send a sample of whole blood or blood serum to carry out the test, it is also of practical interest to the general practitioner. The test should be called upon if any of the following auto-immune skin diseases are suspected: pemphigus vulgaris (including p. vegetans, p. foliaceus, p. erythematosus), bullous pemphigoid (including benign mucosal pemphigoid) lupus erythematodes (systemic) and diffuse scleroderma.

Autoimmune Diseases↗

Effect of spectinomycin on T. pallidum in incubating experimental syphilis.

Animal experiments were performed to determine if a single-dose treatment for acute gonorrhoea with 2 g. spectinomycin could cure a simultaneously acquired syphilis at a very early stage of incubation. 300 treponemes (Nichols stain T. pallidum) were inoculated intratesticularly and 3 days later spectinomycin was administered in a dose which produced spectinomycin serum levels similar to those in patients who had received a single oral dose of 2 g. This dosage of spectinomycin did not prevent the development of syphilitic orchitis or reactivity to the FTA-ABS test, but it prolonged the subclinical incubation period.

Animals↗

[The effect of pivampicillin and probenecid on experimental syphilis in rabbits].

The oral single-dose-treatment of the acute gonorrhoeal urethritis of the male with 1.4 g pivampicillin and 1.0 g probenecid is one of the possible alternatives to a parenteral penicillin treatment. Experiments were performed on rabbits to determine if this dose of pivampicillin and probenecid could cure a simultaneously acquired syphilis at a very early stage of incubation. 300 treponems (Nichols strain, T. pallidum) were inoculated intratesticularly and 3 days later pivampicillin and probenecid were administered in doses which produced antibiotic serum levels similar to those in patients who had received a single oral dose of 1.4 g pivampicillin and 1.0 g probenecid. Controls over a 15-weeks period showed that this dosage did prevent the development of syphilitic orchitis and reactivity to the quantitative FTA-ABS-test. It is concluded that the treatment of acute gonorrhoea with 1.4 g pivampicillin and 1.0 g probenecid in general is sufficient to cure a simultaneously acquired syphilis.

Administration, Oral↗