Cyclic fertilin-derived peptide stimulates in vitro human embryo development.

Objective: To study the cyclic fertilin peptide effects on preimplantation human embryogenesis. Cyclic fertilin peptide reproduces the structure of the binding site of the sperm Fertilin β (also named A Disintegrin and Metalloprotease 2: ADAM2) disintegrin domain. It binds to the oocyte membrane and increases sperm-oocyte fusion index in human and fertilization rate in mouse, providing healthy pups.

A fertilin-derived peptide improves in vitro maturation and ploidy of human oocytes.

Objective: To analyze the effect of a cyclic fertilin-derived peptide (cFEE) on in vitro maturation of human oocytes.

Design: Randomized study.

Setting: Fertility center in an academic hospital.

Cardiac inflammatory CD11b/c cells exert a protective role in hypertrophied cardiomyocyte by promoting TNFR- and Orai3- dependent signaling.

Early adaptive cardiac hypertrophy (EACH) is initially a compensatory process to optimize pump function. We reported the emergence of Orai3 activity during EACH. This study aimed to characterize how inflammation regulates store-independent activation of Orai3-calcium influx and to evaluate the functional role of this influx.

Egg CD9 protein tides correlated with sperm oscillations tune the gamete fusion ability in mammal.

Mammalian fertilization involves membrane events-adhesion, fusion, sperm engulfment, membrane block to polyspermy-whose causes remain largely unknown. Recently, specific oscillations of the sperm in contact with the egg were shown to be necessary for fusion. Using a microfluidic chip to impose the venue for the encounter of two gametes allowed real-time observation of the membrane remodelling occurring at the sperm/egg interface.