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Biomedical subjects

J Dubiel

Publications and source records attributed to J Dubiel.

At least 19 recordsLinked to original sources
PubMed1977

[Results of operative treatment in chronic glaucoma with marked visual-field defects (author's transl)].

The authors analysed the cases of 13 patients, operated upon for chronic glaucoma with marked visual-field defects. The visual field was examined with a Zeiss spherical perimeter. The field area was calculated in cm2 by planimetric method before the operation and then some months after it, and the obtained results were compared. Special attention was paid to vascular disturbances. In most patients with regular vascular system, post-operative examination had revealed an increase of the visual field. The best results were obtained in patients with medium-size defects: in these cases the increase in the visual field amounted to ca. 33%. The authors recommended proceeding to operative treatment in glaucoma patients without delay whenever there are defects in the visual field, even when they are very pronounced.

Adult↗
PubMed1969

Effect of acid infusion into various levels of the intestine on gastric and pancreatic secretion in the cat.

Intraduodenal infusion of increasing amounts of hydrochloric acid solution results in a stepwise increase in the volume of pancreatic secretion and output of bicarbonate, reaching about 90% of amounts attained with exogenous secretin infused intravenously in increasing doses. Acid infusion into the different regions of the intestine stimulates pancreatic secretion only from the duodenum and upper jejunum, suggesting that the area of endogenous release of secretin by acid is confined to the upper part of the small bowel in the cat. Gastric acid secretion induced by pentagastrin, but not by histamine, is inhibited by acid perfusion of the duodenum. The acidification of other parts of the small intestine does not result in any change in gastric acid secretion induced either by pentagastrin or by histamine.

Animals↗