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Immunofluorescence staining of SM22α in the thoracic aorta of ground squirrels. DAPI (blue) labels the nucleus, and CY3 (red) labels nuclear SM22α. The scale in the left column = 500 μm and in the right column = 50 μm. White arrows are nuclear translocation changes. SA: summer active, LT: late torpor, IBA: interbout arousal, Lu: lumen, int: intima, m: media, ad: adventitia.
