Lifelong running reduces oxidative stress and degenerative changes in the testes of mice - Chigurupati, S; Son, T G; Hyun, D H; Lathia, J D; Mughal, M R; Savell, J; Li, S C; Nagaraju, G P; Chan, S L; Arumugam, T V; Mattson, M P (J Endocrinol, 2008)