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Lung cell autophagy markers induced by SR. A–D: immunoblots for LC3I and its lipidated form LC3II in lungs followed indicated radiation sources (unless otherwise noted, doses of 1 Gy). Vinculin was loading control. Each lane represents a distinct mouse lung. E: levels of p62 in the lung lysates of mice exposed to 56Fe compared with control normalized to loading control. Means + SE; *P < 0.05. N = 3–5/group.
