Antioxidant strategies to mitigate oxidative stress-induced cryodamage in oocytes
Elnaz Zand1
Gang Zhao2
1.Department of Electronic Engineering and Information Science,University of Science and Technology of China,Hefei 230026,China2.Department of Electronic Engineering and Information Science,University of Science and Technology of China,Hefei 230026,China;Center for Reproduction and Genetics,Department of Obstetrics and Gynecology,The First Affiliated Hospital of USTC,Division of Life Sciences and Medicine,University of Science and Technology of China,Hefei 230026,China;Anhui Provincial Joint Construction Key Laboratory of Biomimetic Medicine,Institute of Advanced Technology,University of Science and Technology of China,Hefei 230026,China
摘要：Oocyte cryopreservation is an essential procedure in assisted reproductive technologies,aimed at preserving fertility,particularly for women undergoing IVF treatment or at risk of ovarian damage due to radiation,chemotherapy,or surgery.Despite its growing use,the survival and fertilization rates of cryopreserved oocytes remain suboptimal,largely due to cryo-induced oxidative stress.The generation of Reactive Oxygen Species(ROS)during freezing and thawing causes considerable damage to key cellular components,including proteins,lipids,DNA,and mitochondria.This oxidative stress compromises oocyte quality and reduces developmental potential.To address these challenges,the use of additives-especially antioxidants-has shown significant promise in mitigating oxidative damage.Enzymatic antioxidants such as Superoxide Dismutase(SOD)and Catalase(CAT),along with non-enzymatic antioxidants like glutathione,melatonin,and resveratrol,have demonstrated the ability to neutralize ROS and improve oocyte viability and developmental outcomes.Recent studies highlight the potential of Mitoquinone(MitoQ),a mitochondria-targeted antioxidant,to effectively counteract mitochondrial ROS and enhance cellular defense mechanisms during cryopreservation.This review explores the cellular mechanisms of cryodamage,the role of oxidative stress in oocyte cryopreservation,and the potential of various antioxidant strategies to enhance oocyte survival and function.Developing effective antioxidant supplementation approaches may significantly improve the outcomes of cryopreservation in reproductive medicine.
机标关键词：antioxidantstrategiesoocytescryodamagemitigateoxidativestress-induced
论文发表日期：2025-06-30
在线出版日期：2025-09-23（本平台首次上网日期，不代表文献的发表时间）
页数：10( 81-90 )
英文信息