Abstract
1. Colloid osmotic pressure of the gallbladder bile of 20 dogs was measured in 20 animals before and after the induction of the biliary dyskinesia.
2. The average colloid osmotic pressure of the normal bladder bile of dogs was 627 and 646mm. H2O, for the 12 hours and 24 hours values respectively.
3. The value of the cases with the biliary dyskinesia was 739 and 752mm. H2O, for the average 12 hours and 24 hours values respectively, being constantly higher than that of the normal bile. The rate of an increase in the pressure was higher generally in cases in which the mechanical stimulus for inducing the dyskinesia had been imposed upon the papilla of Vater 2 to 3 weeks before.
4. The bile of the normal gallbladder presented three times as high, whilst that of the bladder with the dyskinesia four times as high, colloid osmotic pressure as compared with the previously reported values of the body fluid of ascaris. The dead body of ascaris is hardly putrefied or destroyed in the bile presumably because of the dehydration due to such a difference in the colloid osmotic pressure.
