- Creating conditions similar to those that occur during exposure of cells to microgravity induces apoptosis in human lymphocytes by 5-lipoxygenase-mediated mitochondrial uncoupling and cytochrome c release. Maccarrone, M., Battista, N., Meloni, M., Bari, M., Galleri, G., Pippia, P., Cogoli, A., Finazzi-Agrò, A. J. Leukoc. Biol. (2003)