PMID- 12175437 OWN - NLM STAT- MEDLINE DCOM- 20020918 LR - 20191210 IS - 1064-1955 (Print) IS - 1064-1955 (Linking) VI - 21 IP - 2 DP - 2002 TI - Preeclampsia and calcium-ATPase activity of red cell ghosts from neonatal and maternal blood. PG - 97-107 AB - OBJECTIVE: Determination of Ca-ATPase activity and thiobarbituric acid-reactive substances (TBARS) of red cell ghosts from neonatal and maternal blood of normotensive and preeclamptic women. METHODS: Venous blood was obtained by venipuncture of six nulliparous normotensive and six preeclamptic pregnant women. After cesarean delivery, blood samples were obtained from the umbilical cord of the same patients. Red blood cell ghosts were prepared and assayed for Ca-ATPase activity and TBARS. MAIN OUTCOME MEASURE(S): We expected to find a higher level of TBARS, and consequently, a lower activity of the Ca-ATPase activity of the neonatal samples from preeclamptic mothers. RESULTS: The preeclamptic condition produces a significant diminution of the Ca-ATPase activity in both maternal and neonatal red blood cell ghosts (p<0.001 in both cases). The TBARS of the red cell ghosts are significantly increased with preeclampsia in mothers and their neonates (p<0.001 and p<0.005, respectively). The Ca-ATPase activity of red cell ghosts from neonatal blood is significantly lower than the corresponding values of red cell ghosts from both normotensive and preeclamptic women (p<0.001 in both cases). CONCLUSIONS: Preeclamptic mothers and their neonates show a diminished Ca-ATPase activity and an increased level of TBARS in their red blood cell ghosts. FAU - Carreiras, Milagros M AU - Carreiras MM AD - Centro de Biofisica y Bioquimica, Instituto Venezolano de Investigaciones Cientificas, Caracas, 1020A, Venezuela. FAU - Proverbio, Teresa AU - Proverbio T FAU - Proverbio, Fulgencio AU - Proverbio F FAU - Marin, Reinaldo AU - Marin R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Hypertens Pregnancy JT - Hypertension in pregnancy JID - 9421297 RN - 0 (Thiobarbituric Acid Reactive Substances) RN - EC 7.2.2.10 (Calcium-Transporting ATPases) SB - IM MH - Adult MH - Calcium-Transporting ATPases/*blood MH - Erythrocyte Membrane/*metabolism MH - Female MH - Humans MH - Infant, Newborn MH - Lipid Peroxidation MH - Phosphorylation MH - Pre-Eclampsia/*blood MH - Pregnancy MH - Thiobarbituric Acid Reactive Substances EDAT- 2002/08/15 10:00 MHDA- 2002/09/19 10:01 CRDT- 2002/08/15 10:00 PHST- 2002/08/15 10:00 [pubmed] PHST- 2002/09/19 10:01 [medline] PHST- 2002/08/15 10:00 [entrez] AID - 120004027 [pii] AID - 10.1081/PRG-120004027 [doi] PST - ppublish SO - Hypertens Pregnancy. 2002;21(2):97-107. doi: 10.1081/PRG-120004027.