Absence of carcinogenic activity in BD rats after oral administration of high doses of bismuth oxychloride.
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Administration, Oral↗
Biomedical subjects
S Ivankovic
Publications and source records attributed to S Ivankovic.
Absence of toxic and carcinogenic effects after administration of high doses of chromic oxide pigment in subacute and long-term feeding experiments in rats.
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Administration, Oral↗
Chemotherapy of the transplantable acute leukemia L5222 in rats.
This study presents results of single-drug and combination chemotherapy of the transplantable acute leukemia L5222 in BD IX rats. In leukemia L5222 there is a direct relationship between the number of transplanted cells and mean life expectancy. After single-drug therapy with L-asparaginase, 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU), cyclophosphamide, cytosine arabinoside, daunomycin, 6-mercaptopurine, methylglyoxal bis(guanylhydrazone) dihydrochloride, prednisolone, or vincristine, the best therapeutic effect was observed with BCNU and cyclophosphamide. A massive-dose therapy with BCNU repeated twice or a conbination of vincristine with cyclophosphamide or BCNU with cyclophosphamide yielded a high percentage of cures. Morever, leukemia L5222 seems to be suitable for studying the influence of drugs on the proliferation kinetics of leukemia cells.
Acute Disease↗
[Teratogenic action of ethyl-nitrosourea in Göttingen miniature pigs (author's transl)].
By i.p. application of 70 or 100 mg/kg ethyl-nitrosourea, resp., to gravide Göttingen miniature pigs on days 14 or 16, resp., of gestation massive malformations of the skeletal system were produced. The experiments demonstrated the teratogenic effect of ethylnitrosourea on non-rodents, ascertained the period of determination of the skeletal system in pigs, confirmed the concentration effect in teratogenesis as well as the ineffectiveness of biological barriers with adequately high dosages.
Abnormalities, Drug-Induced↗
[On the lacking teratogenic effect of the plasmaexpander hydroxyethyl starch in the rat and mouse (author's transl)].
Hydroxyethyl-starch (HES) has been tested for teratogenic activity in BD-strain rats and Swiss mice. HES in both species was shown not to be teratogenic. High doses of 50 g/kg/day given by intraperitoneal injection lead to abortion in all pregnant rats. This report in concerned with the important question of, whether development and normal life of the progeny of rats and mice is affected when treated with HES during pregnancy. Special attention has been given to potential teratogenic effects.
Animals↗