Frontiers Glutathione and selenium nanoparticles have a synergistic protective effect during cryopreservation of bull semen Changes in Sperm Glutathione and Glutathione Redox States Correlate to Poor Sperm Qualitative Measures The triple role of glutathione S transferases in mammalian male fertility Cellular and Molecular Life Sciences Springer Nature Link Frontiers Increasing age in men is negatively associated with sperm quality and DNA integrity but not pregnancy outcomes in assisted reproductive technology Glutathione S transferase Mu 3 is associated to in vivo fertility, but not sperm quality, in bovine ScienceDirect