Mariana I. Rachkova

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This report gives a better emphasis on the role of targeted effectors (e.g. a combination of 5-FC with CD-NSPCs as compared to the application of NSPCs alone) and how such delivery of pro-drug activating enzymes and other tumor-killing substances may overcome melanocytic defence system, interact with and promote the host defence and immune response(More)
Our previous studies revealed cyclicity in the incidence rate of skin malignant melanoma (SMM; ICD9, Dx:172) in the Czech Republic (period T=7.50∼7.63 years), UK (T=11.00 years) and Bulgaria (T=12.20 years). Incidences compared with the sunspot index Rz (lag-period dT=+2, +4, +6, +10 or +12 years) have indicated that maximal rates are most likely to appear(More)
Tyrosinase is a key enzyme in melanine biosynthesis. The modulating effect of cytostatic agents on DOPA-oxidase activity of tyrosinase could be linked with the drug treatment of melanoma tumors. Two groups of nitrosoureas which influence DOPA-oxidase activity of tyrosinase were studied: new nitrosoureas and their spin-labeled derivatives synthesized in our(More)
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