Catalase is one of the firsts in every realm of biological sciences. At the same time it also has
a number of unusual features. It has one of the highest turnover numbers of all enzymes. It is …

Reactive oxygen species (ROS) are generated as by-products of aerobic respiration and
metabolism. Mammalian cells have evolved a variety of enzymatic mechanisms to control …

Assisted reproductive technology (ART) is a common treatment of choice for many couples
facing infertility issues, be it due to male or female factor, or idiopathic. Employment of ART …

This review considers how our understanding of preimplantation embryo metabolism has
progressed since the pioneering work on this topic in the late 1960s and early 1970s …

Oocyte quality affects early embryonic survival, the establishment and maintenance of
pregnancy, fetal development, and even adult disease. Quality, or developmental …

Human embryonic stem (hES) cells are routinely cultured under atmospheric, 20% oxygen
tensions but are derived from embryos which reside in a 3–5% oxygen (hypoxic) …

Physiological levels of reactive oxygen species (ROS) play an important regulatory role
through various signaling transduction pathways in folliculogenesis, oocyte maturation …

Reactive oxygen species (ROS) have a role in the modulation of gamete quality and gamete
interaction. Generation of ROS is inherent in spermatozoa and contaminating leukocytes …

After in vitro maturation and fertilization of porcine oocytes, the fertilized embryos were
cultured under 5 or 20% oxygen (O2) for 7 days. In embryos cultured under 5% O2 versus …

Considerable advances in media development for the culture of preimplantation mammalian
embryos have been made since mouse embryos were first cultured and successfully …