The average level of CD56+VEGF2+ cells increased sequentially from physiological pregnancy to gestational hypertension and further to preeclampsia: 0.55 (95% CI 0.39–0.78) → 10.53 (95% CI 9.97–11.28) → 14.2 (95% CI 11.02–17.43). The gene discussed is NCAM1; the disease is preeclampsia.