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Representative flow-cytometric analyses of wild-type C57BL/6 thymocytes stained with annexin V and PI, and cultured in vitro with (a) medium alone (b) dexamethasone alone, and (c) dexamethasone and leptin. Shown are live thymocytes (lower-left quadrant), thymocytes in the early stages of apoptosis (lower-right quadrant), thymocytes in the late stages of apoptosis (upper-right quadrant), and dead thymocytes (upper-left quadrant).
