CD4 and cancer: There is a significant difference in both systolic and diastolic blood pressure between normal non-pregnant women and those with preeclampsia (p < 0.001), as well as between normal pregnant women and those with preeclampsia (p < 0.001) (Appendix 1).T-regs are a distinct subset pool of CD4+ lymphocytes that control the immune system's innate and adaptive responses to self-antigens, infectious pathogens, cancer, commensal microbiota, and several other allergens [11].