O.A. Suvorov, A.I. Panait, V.M. Bakhir, A.G. Pogorelov, M.A. Pogorelova, G.R. Ivanisky, Indirect Response of Early Mouse Embryo to Oxidative Stress Evoked in Apoptosis Model, Journal of Engineering and Applied Sciences, Volume 13,Issue 12, 2018, Pages 4300-4304, ISSN 1816-949x, jeasci.2018.4300.4304, (https://makhillpublications.co/view-article.php?doi=jeasci.2018.4300.4304) Abstract: Quantitative laser microtomography was employed to measure the single cell volume. NMRI mouse zygotes and 2-cell embryos were shown to exhibit the shrinkage at apoptosis induced with ROS (40 min., H2 O2 , 0.2 mM). Unlike early embryos, there was no influence of in vitro apoptotic circumstances on mature oocytes, direct precursor of early embryogenesis. Dulbecco’s solution prepared from electrochemically reduced bi-distilled water allows the low redox potential in both normal and apoptotic conditions. The data obtained permit us to suggest that ROS sub-milimolar concentrations likely act as the signaling impact. Cys-loo receptors containing thiol group may be considered as the target of hydrogen peroxide molecules. Keywords: Oocyte and early embryo;NMRI mouse;apoptosis;hydrogen peroxide;electrochemically reduced;quantitative laser microtomography;cellular volume;Oocyte and early embryo;NMRI mouse;apoptosis;hydrogen peroxide;electrochemically reduced;quantitative laser microtomography;cellular volume