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>Journals >Ginecología y Obstetricia de México >Year 2015, Issue 06


López-Alarcón M, Vital-Reyes VS, Montalvo-Velarde I, Hinojosa-Cruz JC, PuelloTE
Interactions between markers of endothelial damage (homocysteine and asymmetric dimethylarginine) and antioxidants and B-vitamins in preeclamptic women
Ginecol Obstet Mex 2015; 83 (06)

Language: Español
References: 24
Page: 329-339
PDF: 425.44 Kb.


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ABSTRACT

Background: Preeclampsia is a pregnancy-related pathological condition triggered by an abnormal placentation which produces endothelial dysfunction (ED). ED, in turn, is associated with an increase in homocysteine (hcy) and asymmetric dimethylarginine (ADMA); these molecules are also increased when some of the B-vitamins are deficient. It is unclear whether increases in hcy and ADMA during preeclampsia are the result of ED, or the consequence of a B-vitamin deficiency.
Objective: To evaluate hcy, ADMA, folic acid (FA), vitamin B6 and B12 concentrations in patients with preeclampsia.
Methods: In a cross-sectional design 19 patients with severe preeclampsia (preeclampsia) and 57 with normal pregnancy (no-preeclampsia), paired by gestational age and body mass index, were studied. Plasma hcy, ADMA, FA and vitamins B6 and B12 were determined. Non-parametric statistics was used for between-groups comparisons and regression analyses to evaluate interactions among molecules.
Results: 72% of women were vitamin B6 deficient, 40% were deficient of B12 and 4% of FA. Preeclamptic patients presented hcy and ADMA concentrations higher than no-preeclamptic ones. Inferential analyses demonstrated that: hcy and ADMA are increased during preeclampsia independently from vitamins blood concentration; that the risk for preeclampsia is associated with high hcy but not with vitamins deficiency; and that the ratio L-arginine:ADMA decreases the preeclampsia risk.
Conclusion: In patients with preeclampsia, increases of hcy and ADMA are associated with ED, but not with deficiency of the vitamins involved in their metabolism.


Key words: homocysteine, ADMA, preeclampsia, B-vitamins.


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>Journals >Ginecología y Obstetricia de México >Year 2015, Issue 06
 

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