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V Zeman

Publications and source records attributed to V Zeman.

108 records · Page 6Linked to original sources
PubMedDate not supplied

Selenium and rubidium changes in subjects with pathologically altered thyroid.

Concentrations of selenium and rubidium in groups of subjects with hyperthyroidism, carcinomas, or adenomas and in controls were determined by neutron activation analysis with coirradiated inorganic standards and IAEA reference material. Se was decreased in all pathological groups with the greatest modification in thyroids with carcinomas. Rb was elevated in all pathological groups with the greatest increase in carcinomas as well. According to the literature, Se has a protective effect on carcinogenity as well as on biochemical pathways in thyroid cells. There are no data in the literature on the effects of Rb in those cells. On the grounds of the present results, it seems possible to use the trapping of Rb for diagnostic purposes in cases of pathologically altered thyroids.

Adenoma↗
PubMedDate not supplied

Cytologic changes simulating malignancy in thyrotoxic goiters treated with carbimazole.

The cytologic patterns in toxic goiters treated with carbimazole were studied. Most cases exhibited changes, especially the unusually large nuclei, that could be mistaken for malignancy in panoptic-stained material. Study of the nucleolar morphology by means of the toluidine blue stain, however, showed a clear difference from malignant nucleolar types, with the nucleoli displaying types as in the cells of benign euthyroid colloid goiters. No increased transcription activity was seen in the nuclei. Nucleolar staining is thus recommended to avoid diagnostic errors in these and similar atypical cases. The apparent cytostatic effect of carbimazole on thyroid cells is in accord with other reports in the literature.

Acid Phosphatase↗