Embryoman
Researchers in a 2023 study discovered 6 genes associated with recurrent miscarriage of euploid embryos, which were found to impair reproductive ability in mouse models.
Researchers in a 2023 study found comparable pregnancy and neonatal outcomes when transferring a day 5 poor quality or a day 6 good quality embryo.
Evidence up to 2022 shows that a single PGT-A biopsy is highly concordant (similar) with the rest of the embryo when the embryo is aneuploid or euploid, but not when it’s mosaic or segmental.
Researchers in a 2022 study compared outcomes from mature M2 eggs and M1-M2 eggs that underwent “rescue in vitro maturation” and found that M2 eggs had improved fertilization, blastocyst conversion and euploidy rates, with no difference in pregnancy or live birth rates.
Small studies find that some chaotic embryos can be euploid after PGT-A rebiopsy, while a case report details a live birth after the transfer of a chaotic embryo.
Researchers in a 2022 study compared perinatal outcomes after IVF using donor sperm and found a reduction in preterm births, low birth weights and congenital anomalies compared to babies conceived using partner sperm.
Researchers in a 2022 study found that women with low β-hCG (<149 mUI/ml) are more likely to have a preterm delivery and abnormal placental pathologies compared to women with higher β-hCG.
Researchers in a 2022 study found no difference in live birth rates in those that transferred embryos by standard timing or timing established by the ERA.
