Biomedical subjects
Publications and source records attributed to S Mazur.
In response to the syngeneic carcinoma cells the regional lymph nodes are enlarged, but their lymphatic Mast Cell content was reduced in both, relative and absolute terms. This result confirms our earlier data on the depletion of lymphatic Mast Cells in the lymph nodes stimulated by various antigens.
A solid medullar carcinoma, which arose spontaneously in DBA/2W mouse was passed in vivo in syngeneic and semisyngeneic recipients for ten generations without alteration of its morphology. This cancer, which we named WAMIB, has a relatively slow growth ratio with MST 59 days and can be easily reproduced from cell cultures and/or from cryopreserved tumor fragments. WAMIB tumor is nearly diploid and does not metastasize, does not regress spontaneously and is rejected when grafted into allogeneic recipient animals.
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Crystallinity of mineral in human pineal calcospherulites was determined by electron spin resonance spectrometry after irradiation of the samples with gamma rays in a 60Co-source. The radiation-induced stable paramagnetic centers in the crystalline lattice of hydroxyapatite crystals were used as a marker of the crystalline fraction and related to the total mineral content. The crystallinity of pineal sand is higher than that of compact bone. The numerical value of the crystallinity coefficient depends on both the average crystal size of hydroxyapatite and the percentage of the crystalline fraction in the total amount of mineral. Literature data show that the average size of hydroxyapatite crystals in pineal sand are smaller than in bone tissue. It is, therefore, concluded that the higher crystallinity of pineal acervuli is due to the lower percentage of the submicrocrystalline fraction in their mineral.
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