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Mast cell numbers in the left ventricles of sham-operated and ovariectomized (OVX) female Fischer 344×Brown Norway (F344BN) rats treated with vehicle (V) or cromolyn for 4 weeks. A) Representative images showing mast cell staining with anti-chymase antibody. B) Quantification of cardiac mast cell number. Values are means ± SEM; *P<0.05 vs. sham. n=7/group.
