ANXA5 and Infertility: Another study compared the levels of apoptosis, oxidative stress, and sperm DNA damage in 60 infertility patients and 20 normozoospermic sperm donors prior to and following slow freezing of their semen samples, using an Annexin V-FITC apoptosis kit, BIODIPY/8OH-DG, and TUNEL staining, respectively [118].