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Expression of Sulf transcripts in mouse placenta. (A) Serial sections through E14.5 placenta. Little or no Sulf1 expression was detected in the embryonic portion of the E14.5 placenta. Sulf2 message was abundant in the spongiotrophoblast layer (Sp). (B) Sulf1 message was observed in some vasculature (arrows) of the maternal decidua (Md). Sulf2 was not detected in any vasculature examined. Bars, 400 μm (A) and 200 μm (B). Lb, labyrinth; H&E, hematoxylin and eosin.
