European journal of obstetrics, gynecology, and reproductive biology · 2005
Are plasma total homocysteine and other amino acids associated with glucose intolerance in uncomplicated pregnancies and preeclampsia?
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López-Quesada Eva, Antònia Vilaseca M, Gómez Elena, Lailla Josep M
Аннотация
OBJECTIVE: To evaluate the possible association between plasma total homocysteine or other amino acid concentrations and gestational diabetes or glucose intolerance (GI), in normotensive and preeclamptic pregnant women.
STUDY DESIGN: Prospective study including 243 pregnant women without previous risk factors. O'Sullivan test (plus oral glucose tolerance test when necessary) was performed, and homocysteine, B vitamins and plasma amino acids (AA) were measured at 24-25 weeks. Homocysteine and other amino acids were also measured in the third trimester.
RESULTS: Significant differences were observed in the incidence of preeclampsia in relation to abnormal glucose tolerance (P < 0.012). In normotensive patients, the glucose intolerance group showed significantly lower tHcy (P = 0.021) and increased plasma alanine concentrations in comparison with controls (P = 0.046), although no correlation was observed between both amino acid concentrations.
CONCLUSIONS: (a) A higher incidence of preeclampsia was observed in abnormal glucose tolerance patients, (b) total homocysteine and alanine were the only individual amino acids whose plasma concentrations varied according to the glucose tolerance classes, and (c) an association between hyperhomocysteinemia and glucose intolerance in our preeclamptic patients could not be demonstrated.
STUDY DESIGN: Prospective study including 243 pregnant women without previous risk factors. O'Sullivan test (plus oral glucose tolerance test when necessary) was performed, and homocysteine, B vitamins and plasma amino acids (AA) were measured at 24-25 weeks. Homocysteine and other amino acids were also measured in the third trimester.
RESULTS: Significant differences were observed in the incidence of preeclampsia in relation to abnormal glucose tolerance (P < 0.012). In normotensive patients, the glucose intolerance group showed significantly lower tHcy (P = 0.021) and increased plasma alanine concentrations in comparison with controls (P = 0.046), although no correlation was observed between both amino acid concentrations.
CONCLUSIONS: (a) A higher incidence of preeclampsia was observed in abnormal glucose tolerance patients, (b) total homocysteine and alanine were the only individual amino acids whose plasma concentrations varied according to the glucose tolerance classes, and (c) an association between hyperhomocysteinemia and glucose intolerance in our preeclamptic patients could not be demonstrated.