[Histamine in the urogenital tract].

Tissue histamine determination in the urogenital tract showed that there are significant differences concerning tissue histamine content between intraoperative and postmortem tissue samples. The difference appeared to be most significant in the case of renal pelvis samples, where the decrease was about 90% in the autopsie material compared to intraoperative tissues. In comparing tissue histamine content in special organs of different animal species we discovered considerable differences; e.g. in the ureter of the dog we measured 30 micrograms/g tissue - where as against the values in man amounted to only 6 micrograms/g tissue. The physiological meaning of the different tissue histamine levels is unknown.