El-Chennawi F, et al. - This study analyzed the umbilical cord blood of babies born to mothers with and without preeclampsia in order to determine the percentage of CD4⁺ CD25^high FOXP3⁺, CD4⁺ CD25^low FOXP3⁺, and CD4⁺ FOXP3⁺ Tregs. Findings demonstrated an association of preeclampsia with immune dysregulation, which in turn, was responsible for a deficiency in Treg (CD4⁺ CD25^high FOXP3⁺) in the umbilical cord blood of babies born to preeclamptic mothers.