The brain lesion influences the numbers of peripheral blood leukocytes in the rat.

The mutual relationship between the central nervous and immune system are intensively studied. The lesion of distinct structures of the rat brain such as septum influence the model immune response such as lymphocyte proliferation and delayed skin hypersensitivity. Employing the model of the damage of septum in the rat brain by electrolesion we demonstrated the decrease of the number of peripheral blood leukocytes, mainly cells exhibiting CD25 and CD45RA antigens in the rat. The striatum destruction has much lower influence on the studied parameters, which suggests a specific effect of the septum on these hematological parameters.