These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Calcium-ATPase activity of red blood cell ghosts from preeclamptic women, antepartum and postpartum.
    Author: López TT, Limongi F, Proverbio T, Oviedo NJ, Proverbio F, Marín R.
    Journal: Hypertens Pregnancy; 2003; 22(3):247-56. PubMed ID: 14572361.
    Abstract:
    OBJECTIVE: We determined the calcium activated adenosine triphosphatase (Ca-ATPase) activity and level of lipid peroxidation thiobarbituric acid-reactive substances (TBARS) of red blood cell ghosts in the antepartum and postpartum of normotensive and preeclamptic pregnant women. METHODS: Samples of venous blood were obtained by venipuncture of nulliparous normotensive and preeclamptic pregnant women antepartum and two, four, six, and 20 weeks postpartum. The red blood cell ghosts were prepared and assayed for Ca-ATPase activity and TBARS. MAIN OUTCOME MEASURE(S): We expected to find a return to normal values of both Ca-ATPase activity and TBARS level of the red blood cell ghosts, modified in the preeclamptic pregnant women, during their puerperium. RESULTS: The Ca-ATPase activity of red cell ghosts from preeclamptic women, antepartum, is lower than that of normotensive pregnant women. The ATPase activity returns to normal values during the first six weeks of postpartum. The level of TBARS of red cell ghosts from preeclamptic women follows a pattern that is inversely proportional to the one of the Ca-ATPase activity. CONCLUSIONS: Preeclampsia produces a significant diminution of the Ca-ATPase activity and an increase in the levels of TBARS in the erythrocytes. As soon as all the symptoms of preeclampsia disappear in the postpartum, both Ca-ATPase activity and TBARS return to normal values.
    [Abstract] [Full Text] [Related] [New Search]