Search PubMed⌕ Search

Biomedical subjects

T Pisarski

Publications and source records attributed to T Pisarski.

At least 73 records · Page 4Linked to original sources
PubMed1978

[Antigenicity of the human trophoblast].

In this a rabbit immunological serum against human trophoblast was obtained after triple intramuscular superficial villi extract injection from chorion of 6--7 week pregnancy with Freund's adjuvant. In immunofluorescent indirect reaction to this serum made on chorion and placenta sections some most intense specific fluorescence was obtained in cytoplasm of primordial cyto- and synytiotrophoblast. Some favourable influence of antigenic differences between ovum and mother especially implantation has been suggested.

Animals↗
PubMed1975

The influence of selected cytostatics on human trophoblast in vitro.

The effect of cytostatics (Methotrexate, Oncovin and Dactinomycin) on early human trophoblast in vitro was studied by the tissue (organ) culture technique according to Trowell and by brief incubation with thymidine 3H. The cytostatics were tested by the method of Tanneberger in clinical and tenfold higher doses. The criteria for cytostatic efficacy were based an activity of DNA, histologic and histochemical changes, and secretion of hormonal chorionic gonadotropin. In vitro cultures of trophoblast were found to be a good model for evaluation of cytostatics, and the tested chemotherapeutics were effective chemotherapeutically. Upon addition to in vitro cultures they changed the structure and function of trophoblastic cells, resulting in depression of DNA resynthesis, histologic changes, changes in enzyme activities assessed histochemically, and impaired HCG secretion. The most pronounced effects were obtained with Dactinomycin or with a combination of Dactinomycin and methotrexate. Methotrexate alone had the weakest effect on DNA resynthesis and structure of the trophoblastic cells. The effect achieved with methotrexate after 120 hours was equal to the effect of Dactinomycin after 48 hours. Comparison of the histologic and hormonal results with DNA activity showed concordance between the intensity of morphologic and hormonal changes and impairment of nucleic acid functions.

Acid Phosphatase↗