1. Isolated lungs of the frog, Rana esculenta L., when incubated in amphibian Ringer solution for 30 min, produced a prostaglandin E2-like substance (27.1 ± 3.8 ng/g w.w.), as determined by bioassay on the isolated rat stomach strip. 2. The release of PGE2-like substance from skin, heart and bowel is also reported. 3. The activity of synthetic prostaglandins E2 (PGE2) and F2alpha (PGF2alpha) on the muscular contractility of frog isolated lungs was investigated: PGE2 and PGF2alpha relaxed and contracted respectively in a dose-dependent manner this preparation, a result similar to that obtained in mammals.
Antagonistic actions of prostaglandins E2 and F2 alpha on the isolated lungs of the frog, Rana esculenta L.
PINTO, Aldo;
1987
Abstract
1. Isolated lungs of the frog, Rana esculenta L., when incubated in amphibian Ringer solution for 30 min, produced a prostaglandin E2-like substance (27.1 ± 3.8 ng/g w.w.), as determined by bioassay on the isolated rat stomach strip. 2. The release of PGE2-like substance from skin, heart and bowel is also reported. 3. The activity of synthetic prostaglandins E2 (PGE2) and F2alpha (PGF2alpha) on the muscular contractility of frog isolated lungs was investigated: PGE2 and PGF2alpha relaxed and contracted respectively in a dose-dependent manner this preparation, a result similar to that obtained in mammals.File in questo prodotto:
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