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Biomedical subjects

M Sellyei

Publications and source records attributed to M Sellyei.

At least 19 recordsLinked to original sources

Bone marrow transplantation in accelerated chronic granulocytic leukaemia using dibromomannitol-preconditioning instead of total-body irradiation.

In a preliminary study on five patients with accelerated CGL, transplantation of allogeneic matched bone marrow was shown to be feasible without whole-body irradiation. Animal experiments and studies with cells cultured in vitro suggest that the cytocastic drug used to kill leukaemic clones (Myelobromol-Chinoin) does not injure haemopoietic stroma. The administration of this protocol is cheap and easy. Our preconditioning does not, in itself, eradicate the malignant CGL clone immediately: 15-20% of marrow mitoses were Ph1+ one month after transplantation. For this reason, additional cytostatic therapy was given in the course of the 3rd to 6th post-transplant months. No Ph1+ cells were observed from the fourth post-transplant month onwards. Very few severe acute complications were seen and two out of three matched transplanted patients are disease-free 27 + and 13 + months later. On the basis of the developing normal spleen architecture and the changing pattern of circulating NAP score values, particularly the months-long persistence of distinctly low scores, and then the delayed emergence of normal levels, we put forward a hypothesis, emphasizing the role of environmental factors, including the formation of a normal haemopoietic stroma in the successfully transplanted CGL patient.

Adolescent↗

[Renocerebral oxalosis following glycerin infusion].

At the autopsy of a 55 years old male patient renocerebral oxalosis was found, the most frequent cause of which--the ethylenglycol poisoning could be excluded by toxicological examination of the organs. Authors suppose that intravenous administration of 500 ml of 10 per cent solution of glycerol several hours before the death for the treatment of cerebral oedema might have caused the renocerebral oxalosis. The fact that in the catabolism of glycerol, ethylenglycol and xylit causing most frequently renocerebral oxalosis glycoxylic acid, precursor of the oxalic acid in the organism is formed, seems to evidence this supposition.

Brain↗

Thyroid-bound Y-chromatin-like fluorescence in the nuclei of thyroid adenomas.

Brilliantly fluorescent supernumerary chromocenters indistinguishable from the Y-chromatin have been often found electively in the thyroid nuclei. The authors compared the occurrence of this Y-chromatin-like fluorescence in 31 thyroid adenomas obtained from 30 autopsy cases (10 males, 20 females) with non-adenomatous thyroid tissues of the same cases. All adenomas had follicular structure but one with papillary structure. The frequency class of Y-chromatin-like fluorescence of adenomas was lower in 15 cases out of 31 than that of the same non-adenomatous thyroid tissue. The Y-chromatin-like fluorescence had a negative count in 13 cases of 31 adenomas but only in 3 cases of normal thyroid tissues from 30 persons. The disappearance of the nuclei with Y-chromatin-like chromocenters is supposedly connected with cellular dedifferentiation of thyroid adenomas.

Adenoma↗

Non-random appearance of Y-chromatin-like fluorescence in the nuclei of thyroid and brain and its chromosomal background.

Non-random distribution of fluorescing chromatin bodies resembling Y chromatin was observed among the cell populations of various organs obtained by autopsy of 52 adults. This type of Y-chromatin-like fluorescence is more frequent in thyroid and brain than in other organs. The Y-chromatin-like bodies of thyroid nuclei are not closely correlated with the brilliantly fluorescing autosomal blocks of lymphocyte mitoses of the same persons, as it was demonstrated in surgical cases.

Cerebral Cortex↗