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Biomedical subjects

A Parola

Publications and source records attributed to A Parola.

40 records · Page 3Linked to original sources
PubMed1976

[Changes in paO2 and of acid-base equilibrium of the arterial blood of hypoxemic polyglobulic patients subjected to acute blood depletion].

Partial respiratory gas tension and acid-base equilibrium patterns were examined in polyglobulic patients subjected to acute blood depletion. The increase in oxyhaemoglobin concentration and fall in haematocrit value already described were confirmed. It was also noted that: 1) pH increased significantly in all subjects; 2) urinary osmolarity increased in all subjects; 3) blood sodium and potassium concentration increased significantly in 14 patients (1st group), but fell in the 2nd group (8 subjects). It is suggested, therefore, that acute blood depletion changes renal reabsorption of the main electrolytes, i.e. increased values in cases where a fall in glomerular arteriolar pressure leads to increased renal medullary osmolarity, and decreased values where a fall in circulation leads to increased arteriolar pressure, hyperosmolarity of the medulla, and retainment of liquids as opposed to electrolytes.

Acid-Base Equilibrium↗
PubMed1975

Fluorescence polarization and viscosities of membrane lipids of 3T3 cells.

Studies of the fluorescence polarization of 1,6-diphenyl-1,3,5-hexatriene in membranes of normal, transformed, and revertant 3T3 cells allowed estimation of microviscosities (eta) of the lipid bilayers of these cells. Fluorescence polarization values observed with normal cells were significantly lower than those observed with cells transformed either by polyoma virus or by simian virus 40. The values of fluorescence polarization obtained with revertant Py6R1 cells were lower than those obtained with the normal cells. The calculated microviscosities (eta) show a 50% increase upon transformation. Possible correlations between the bilayer viscosity and the mobility of the receptors in the membrane are discussed.

Cell Line↗