Advanced glycation end products present in the obese uterine environment compromise preimplantation embryo development

Abstract

Research question Proinflammatory advanced glycation end products (AGE), highly elevated within the uterine cavity of obese women, compromise endometrial function. Do AGE also impact preimplantation embryo development and function? Design Mouse embryos were cultured in AGE equimolar to uterine fluid concentrations in lean (1–2 µmol/l) or obese (4–8 µmol/l) women. Differential nuclear staining identified cell allocation to inner cell mass (ICM) and trophectoderm (TE) (day 4 and 5 of culture). Cell apoptosis was examined by terminal deoxynucleotidyl transferase-mediated dUDP nick-end labelling assay (day 5). Day 4 embryos were placed on bovine serum albumin/fibronectin-coated plates and embryo..