March 2012

All the papers from the March 2012 issue of Fertility and Sterility.

Oocyte mitochondrial bioenergy potential and oxidative stress: within-/between-subject, in vivo versus in vitro maturation, and age-related variations in a sheep model

Mitochondrial activity in oocytes from hormonally stimulated donor sheep shows within- and betweensubject and maturation procedure- and age-related variations. Reactive oxygen species (ROS) level increases in aged oocytes. High mitochondria-ROS colocalization identifies in vivo matured oocytes.