Finally, the absence of Il17 was demonstrated to permit the survival of whole thorax irradiated mice to the experimental endpoint of 35 weeks post treatment, while a Th1 cell deficiency was shown not to affect the extent of pneumonitis or the time to onset of respiratory distress in C57BL/6J mice. The gene discussed is IL17A; the disease is hyperinsulinemic hypoglycemia, familial, 4.