Stimulatory effect of volatile urinary components from intact mice on the proliferative activity of splenic lymphoid tissue in irradiated animals.

Immunohistochemical and morphometric analyses have demonstrated long-distance stimulatory effects of the natural volatile components of the urine of intact mice on the proliferation of splenic lymphocytes in mice exposed to a single total γ-irradiation in a dose of 1 Gy. These results are in line with the data on stimulation of the humoral immune response to thymus-dependent antigen in irradiated mice exposed to urine specimens of intact animals.