PR deficiency minimizes sexual dimorphism in splenic leukocyte abundance in 10 mo.-old Nba2 mice. Shown are means (lines) and individual values (symbols) for splenic abundance of leukocytes (A), B cells (B220hiCD11c−mPDCA1−) (B), CD4+ T cells (CD3+CD4+) (C), mDCs (B220−CD11chimPDCA-1−) (D), pDCs (B220+CD11clomPDCA1+) (E), and macrophages (F4/80hi) (F). *, p < 0.05; **, p < 0.01, unpaired t test.