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A Busuioc

Publications and source records attributed to A Busuioc.

At least 19 recordsLinked to original sources
PubMedDate not supplied

[Glutathione and the redox index in different types of cellular oxidative stress. I. Acrylonitrile (ACN) poisoning].

The professional poisoning with acrylonitrile of some subjects induced a significant decrease of reduced glutathione (81.30%), redox ratio reduced glutathione/oxidized glutathione (90.74%) and "Benzi-redox index" (55.84%) but an increase of oxidized glutathione level (112.6%) as compared to normal controls (100%). This proves the occurrence, in time, of the cellular oxidative stress and/or were obtained.

Acrylonitrile↗
PubMedDate not supplied

Researches on the influence of some pharmacological interferences of the metabolism of icosanoids on the glycemia in rats.

We studied the influence of cloprostenol (CIPG) 200 micrograms/Kg i.p. (a synthetic analogue of PGF2-alpha) and of imidazol 70 mg/Kg i.p. (a selective inhibitor of thromboxane synthetase) on fasting glycemia and on hypoglycemia induced by Actrapid insulin 0.5 UI/Kg i.p. to rats (male adults). The determinations of glycemia were made 60 minutes and 3 hours after the administration of the substances. The tests were made in groups of 20 animals which were not fed 14 hours before the experiment, but were not deprived of water. The results were interpreted statistically by means of the "t" test. The data obtained show that CIPG 200 micrograms/Kg i.p. is a significant hyperglycemic icosanoid (statistically p less than 0.01) both in the case of fasting glycemia and in the case of insulin hypoglycemia. The hyperglycemic effect was stronger at 60 min. Imidazol does not modify significantly either glycemia or insulin hypoglycemia, which pleads for a more reduced implication of thromboxanes in the regulation of glycemia in comparison to the prostaglandins.

Animals↗
PubMedDate not supplied

[The involvement of adenosine and adenosine deaminase in experimental myocardial infarct].

By the ligature of the left coronary artery in the rat anesthetized with nembutal (10 mg/100 i.p.) a significant increase of the 5'-nucleotidase activity (Wooton method) was noticed 10 minutes after the left ventricle infarction (from an average value of 1038.5 +/- 187 mU/g tissue to 1537 +/- 225 mU/g fresh tissue). The adenosine desaminase levels spectrophotometrically determined by Denstedt technique, do not appear significantly modified 10 or 30 minutes after the left ventricle infarction. The chromatographically determined adenosine levels, by HPLC technique, decrease from the average value of 11.63 +/- 1.4 micrograms/mg PT to 8.60 +/- 1.0 micrograms/mg PT 30 minutes after infarction. The observed changes are explained by the conditions of hypoxia in the infarcted ventricle which lead to the raise in adenosine levels by activating the 5'-nucleotidase and their depression by a very fast metabolism of the same substance.

5'-Nucleotidase↗