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Biomedical subjects

S Dumitrescu

Publications and source records attributed to S Dumitrescu.

14 recordsLinked to original sources
PubMed1991

[Abrikosov's tumor located in the breast].

The paper reports on the clinical case of a mammary tumour, Abrikosov's tumour, a are histopathologic occurrence. Clinical, histopathologic and therapeutic aspects are revealed. This case enriches the literature data on this peculiar form of tumour with mammary location.

Biopsy, Needle↗
PubMed1979

Effects of streptomycin on the cortical neurons in the cat.

Data concerning the effects of streptomycin application on the brain cortex are very scarce and nonconcordant, despite routine intra-thecal administration of this drug. Experiments peformed in 15 adult cats permitted us to observed that application of streptomycin sulphate on the brain cortex leads to a real cortical depression, demonstrated by the disappearance of spontaneous spikes, lack of cortical fast activity and lack of hippocampal theta activity. The direct cortical response disappears too and sometimes even the transmission towards the deep structures of neuronal activation induced by high intensity or repetitive stimuli. The depressing activity of streptomycin resembles to a spreading depression, with an effect limited only to the hemisphere where the drug is applied. The difference between our results and those of other authors can be explained by the different degree of purity of the streptomycin used in the experiments.

Animals↗
PubMedDate not supplied

[Data on the use of serological tests for differentiation of exanthematous typhus primary infection from that of recurrences in native cases of Brill-Zinsser disease].

A group of sera from autochtonous cases of Brill-Zinsser's disease, in the early acute phase, were examined by the tests of Murray et al. and Voronova, in the course of a study on the characteristics of the immune response in primary and secondary stimulation with Rickettsia prowazeki. The results obtained both with these sera and those of primary typhus cases from other countries, suggest the possibility of establishing a serologic diagnosis of Brill-Zinsser's disease, with certainty, by identifying the secondary nature of the disease according to the presence of antibodies type 7 S. The authors recommend complement fixation with increasing soluble R. prowazeki antigen concentrations as a method of electron for routine diagnosis.

Antibodies, Bacterial↗