IVM media are designed specifically to support immature cumulus-oocyte complexes not denuded oocytes that have failed to respond to hyperstimulation

2 06 2011

To the Editor:

We wish to express concern about the design, analysis and conclusions reported in the article by Moschini et al. (1). This study compares the efficiency of an oocyte IVM medium (Medicult) to a cleavage-stage embryo culture medium (Sage IVF), for the in vitro maturation (IVM) of denuded oocytes that have failed to respond to gonadotropins in a standard IVF cycle (rescue IVM). We have a number of objections to this study: Read the rest of this entry »





Effect of a phosphodiesterase type 3 inhibitor in oocyte maturation medium on subsequent mouse embryo development

30 10 2008

To the Editor:

Jee et al. (1) report that in their hands a prematuration culture using a phosphodiesterase type 3 (PDE3) inhibitor does not improve developmental competence of immature oocytes. We and others previously reported a beneficial effect of this system (2-6). Fundamental differences in experimental design between their work and ours may explain this discrepancy. Read the rest of this entry »