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Increased SIRT1 during early pregnancy in the mouse uterus. Representative images of SIRT1 IHC in uterine tissue of natural pregnant mice (n = 3). At GD 0.5–3.5, SIRT1 shows low expression (a-c), but at GD 4.5 (d-e) and 5.5 (f-g) SIRT1 expression was strong in decidualized cells. At GD7.5, SIRT1 was also expressed in secondary decidual cells (h-j).
