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Biomedical subjects

M Samoilescu

Publications and source records attributed to M Samoilescu.

7 recordsLinked to original sources
PubMed1975

In vitro growth peculiarities of some human ovarian tumours.

The possibility of applying a short duration method of in vitro cultures for detecting malignancy of ovarian tumours with borderline lesions and with incipient malignant ones was investigated in 24 ovarian tumours. Three main types of histocultures were described in relation with the in vitro behaviour of ovarian tumours and their cytomorphology (atypic growth, mixed growth and normal one). The category of mixed type growth cultures is discussed, corresponding to ovarian tumours with histopathological borderline lesions, with incipient malignancy, as well as two cilio-epithelial cystadenomae rendered malignant with peritoneal seedings.

Cell Division↗
PubMedDate not supplied

Atypic adenomatous hyperplasiae of the endometrium. Cytologic and histopathologic confrontations.

By cytologic and histopathologic confrontations performed in uterine curettage products, 34 atypic adenomatous hyperplasiae were comparatively analysed with 38 malignant proliferations of the endometrium. The confrontation was made with the aim of knowing the diagnosis significance of some atypic adenomatous hyperplasiae lesions, finally correlated with the diagnosis established on histerectomy pieces. The significance of anomalies and/or atypies generated by disorders occurred in the cytodifferentiation of glandular cells and of those of the covering epithelium of the endometrium are discussed as well as the value of methods for the early diagnosis of the malignant process at the level of endometrium.

Aged↗
PubMedDate not supplied

The contribution of cytochemistry and electron microscopy to the detection of contaminants in the cell material used for the production of virus vaccines.

For the production of virus vaccine it is essential to use cellular material free of contaminants that could reach the final product. It is also important to check initial tissue for possible inherent infections. Studies on primary culture of chick embryo fibroblasts have shown in several cases that cultures which appeared normal by current cytological methods had a strongly positive reaction when investigated by the Feulgen reaction for nuclear DNA and acridine orange method proving intense RNA synthesis. Comparison of electron microscopic (EM) pictures of cell sections with results obtained from negatively stained preparations of identical cell material after pronase digestion have shown the presence of viruses, thus elucidating the nature of the inclusions. The combined approach of the above-mentioned problem by cytochemical and EM methods can usefully enlarge the rage of tests employed for the definition of cell populations acceptable for virus vaccine production.

Cells, Cultured↗
PubMedDate not supplied

Dysfunctional endometrium in primary and secondary sterility. An optic and electronmicroscopic study.

Endometria from women with primary and secondary sterility were morphologically, optically and ultrastructurally studied; such endometria were selected by clinical and paraclinical methods. In dysfunctional endometria the most important modification consists in the perturbation of the cyclical maturation process of the epitheliostromal components, perturbation which may take place "synergically" or it may be "dissociated", in disagreement with the theoretic day of the menstrual cycle. Such perturbations took place in varied circumstances: "out of phase", luteal deficit associated with hyper- or hypoestrogenemia, or pure luteal deficit, receptivity disorders, association with specific or unspecific inflammatory lesions, anovulatory cycle. Endometrium biopsy constitutes the best method for the diagnosis of endometrial dysfunctions, showing both the ovary's global hormonal function, and the qualities of the endometrial receptor, with the corrective of the corresponding technical processes and the compulsory knowledge of some clinical data.

Adult↗