Fig. 1

Correlation between embryo morphological score and the PVL index. For 42 patients, CCs were isolated from an oocyte during a standardized IVF protocol. CCs RNA was isolated using Trizol. Gene expression profile of PTGS2, VCAN, and L19 was determined by qPCR and the PVL index was calculated. Afterwards, oocytes were fertilized and morphological parameters evaluated by a specialized training Embryologist for 384 embryos. The level of association was determined by calculating Spearman’s correlation coefficient (ρ)