Antioxidants 11 antioxidant reactive oxygen metabolite 11 Humans 10 Reactive Oxygen Species 10 human 10 metabolism 10 oxidative stress 7 Oxidative Stress 6 Male 5 male 5 Animals 4 animal 4 Female 3 Infertility, Male 3 Male infertility 3 Oxidative stress 3 Reactive oxygen species 3 drug effect 3 female 3 male infertility 3 spermatozoon 3 Article 2 Cell Survival 2 Chenopodium 2 Chenopodium formosanum 2 Collagen 2 DNA Damage 2 DNA damage 2 Dinoprostone 2