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Figure 2 Time dependence of heat shock protein (Hsp) 70 expression in injured rat carotid arteries. Injured or noninjured carotid arteries were harvested from animals at different time points before and after balloon injury. Heat shock protein 70 expression was determined by Western blot combined with enhanced chemiluminescence, employing polyclonal mouse anti-Hsp70 (A). Representative samples taken 3 and 14 days after arterial injury are shown. Densitometric analysis of reactivity with Hsp70 of injured arteries (average of three vessel per bar) from panel A (B).