It’s time to pay attention to the endometrium, including the nucleolar channel system

29 09 2011

To the Editor:

In the context of the excellent Views and Reviews devoted to the endometrium (1), Dr. Bruce A. Lessey offers a thorough analysis of 186 publications that are of significance to the window of implantation (WOI) (2). We feel this already exhaustive effort needs to be expanded further. Although one histological hallmark of midluteal endometrium – pinopodes (whose significance as markers of endometrial receptivity has been questioned) – is reviewed in detail, another, the nucleolar channel system (NCS), went unmentioned. The presence of NCSs distinctly marks the midluteal phase of human endometrium overlapping with the WOI. Read the rest of this entry »

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