Procarbazine causes dose-dependent decreases in sperm count after a single i.p. injection in (C57BL/6 X DBA/2)F1 male mice. Two antioxidants, N-acetylcysteine and sodium ascorbate, administered with equimolar doses of procarbazine decreased the spermatotoxicity of procarbazine. At the highest doses of procarbazine (400 mg/kg) that caused a 56% decrease in sperm count, equimolar doses of N-acety...

Herein we report respiratory syncytial virus (RSV) pneumonia in a child who had hypersensitivity to procarbazine. Urticarial plaques, maculopapular rash occurred in a child with Hodgkin’s lymphoma while receiving procarbazine. Clinical improvement was achieved by withdrawal of procarbazine, administration of corticosteroids, diphenhydramine. After receiving the next course with bleomycin contai...

Procarbazine, a chemotherapeutic hydrazine, is thought to be metabolized to an alkylating species similar to methyl carbonium ion by multistep reactions involving cytochrome P-450, monoamine oxidase, and cytosolic enzymes. The DNA-damaging and cytotoxic potential of procarbazine and its metabolites in murine L1210 leukemia tumor cells in vitro was determined using alkaline elution techniques an...

Procarbazine HCl is a 'nonclassical' oral alkylating anticancer agent that was first synthesized in the late 1950s. It has been used in the treatment of many cancers, but its main use is in the treatment of Hodgkin's lymphoma and brain tumors and, to a lesser extent, Non-Hodgkin's lymphoma and primary central nervous system lymphoma. Procarbazine is a prodrug that undergoes metabolic transforma...

The study examined surface adsorption of fullerene C60 with anticancer drug procarbazine in gas and solvent (water) phases using the DFT method. In doing so, the structure of the procarbazine, fullerene and their derivatives were first geometrically optimized in three different configurations with a base set of 6-31 g * and B3LYP hybrid functions. Then, IR calculations, frontier molecular orbit...

Procarbazine is a 1,2-disubstituted hydrazine derivative that is used to treat human leukemias. The anticancer activity of procarbazine results from bioactivation to reactive intermediates. It is first oxidized to azoprocarbazine and further N-oxidized to a mixture of methylazoxyprocarbazine and benzylazoxyprocarbazine isomers. In this study the azoxyprocarbazine isomers were synthesized and pu...

Procarbazine produces long-term sterility in the male by killing stem spermatogonia. The degree and selectivity of protection of stem spermatogonia in rats from procarbazine by pretreatment with steroid hormones were investigated. Male LBNF1 rats were treated for 6 weeks with Silastic implants containing testosterone plus 17 beta-estradiol. The hormone-treated rats and sham-treated controls wer...

The substance procarbazine (Natulan®) is a teratogen known to induce cleft palates in rats on day 14 post-conception. The application of thiocyanate (SCN-) alone to rats on day 10 and 14 of pregnancy had no effects on fetal bone maturation. However, when procarbazine was used, the maturation and growth of fetal bones was delayed. Upon additional application of thiocyanate, the effects of procar...

TO THE EDITOR: We read with interest the publication by Ater et al on the comparison between two different chemotherapy regimens for low-grade glioma in children. The primary aim was to compare the event-free survival but the stated secondary aims included a comparison of toxicity of the two regimens. The discussion mentions the fear that the TPCV (thioguanine, procarbazine, CCNU, vincristine) ...