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Effects of resveratrol on the Ang II. (a) Representative images of immunohistochemical staining with Ang II in aging kidney glomerulus (original magnification 200×). (b) The expression of Ang II in kidney was significantly decreased in the RSV group. (c) Ang II-positive area in kidney were observed to be significantly smaller in the RSV group; (d) The expression of Ang II in serum was also significantly decreased in the RSV group (* p < 0.05, *** p < 0.001, **** p < 0.0001).
