Figure 5.

Trends in significant metabolite abundance changes of uterine flushings over the progression of blastocyst early elongation. Gray boxes represent initial metabolite abundance; green boxes represent a significant increase in metabolite abundance, while red boxes represent a significant decrease in metabolite abundance at the corresponding conceptus morphologies. Colors next to the metabolite name classify metabolites into categories of related metabolites. O,  uniform ovoid; OT, heterogeneous ovoid and tubular; S,  uniform spherical; SO, heterogeneous spherical and ovoid; T,  uniform tubular [Color figure can be viewed at wileyonlinelibrary.com]