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Biomedical subjects

D T Stefanescu

Publications and source records attributed to D T Stefanescu.

7 recordsLinked to original sources

Modifications of ouabain inhibition of xenon accumulation in red blood cells. Implications regarding cell water structuring.

Ouabain is known to depress uptake of xenon by red blood cells, but it is now found that the depressive effects of phenolsulfonphthalein (PSP) or heavy water are even more marked. Ouabain partly reverses those effects in a manner suggesting it exerts a constant action on xenon exchange regardless of the presence or absence of PSP or D2O. Processes analogous to exchange diffusion between certain anesthetic substances and xenon were also observed. The theoretical consequences of the findings are discussed.

Cell Membrane Permeability↗

Chromosome abnormalities in chronic active hepatitis.

An investigation on human peripheral blood lymphocyte chromosomes in chronic active hepatitis was carried out. A higher percentage of chromatid and chromosome lesions was recorded in all patients studied as compared with control groups-normal individuals, healthy subjects who had suffered from acute viral hepatitis, patients with alcoholic liver disease, and patients with mechanical jaundice due to cancer. The possible origin of these abnormalities is discussed.

Adult↗