3 risultati
The influence of cyanocobalamine (CN-B12), cobamide coenzyme (5'-deoxyadenosyl-B12, DBC) and the cytostatic hisphen on the level of cobalamines in the blood serum, liver, kidney, heart and in the tumor of healthy and sarcoma M-1 implanted rats was studied. In the above organs and tissues cobalamines
Total content of cobalamins was estimated by an isotopic dilution technique in serum and liver of Yoshida sarcoma-bearing rats and in a group of control rats. Total levels of vitamin B12 were also measured in neoplastic tissue. Hydroxycobalamin, adenosylcobalamin, cyanocobalamin and methylcobalamin,
Rapidly dividing cells up-regulate the number of transcobalamin II receptors during DNA replication. We have developed diethylene-triaminepentaacetate (DTPA) cobalamin analogs for the purpose of imaging transcobalamin II receptors in malignant and nonmalignant tissue.
METHODS
Methyl-, adenosyl- and