The reaction of the rat thymus to xenotransplantation and immunosuppression

To the complex action of human embryonal neocortex transplanted into the eye anterior chamber and cyclosporin A injected daily to prevent graft rejection rat thymus reacts by accidental involution, layer inversion and vascular disturbances (without hematoma formation). After 3 wks reparative period sets in and by the end of 5th wk thymus approximates to the control in all parameters.