Abstract
OBJECTIVES:This study aimed to evaluate the potential relationship between oxidative stress, dietary intake, and serum levels of antioxidants in patients with a complete hydatidiform mole (CHM) compared with controls.METHODS:This was an observational cross-sectional study conducted in Rio de Janeiro, Brazil. A total of 140 women were enrolled in this study and divided into four groups: 43 patients with CHM, 33 women who had had an abortion, 32 healthy pregnant women, and 32 healthy non-pregnant women. All participants underwent blood sampling, assessment using a semiquantitative food frequency questionnaire, and anthropometric measurement. Blood samples were collected after overnight fasting (10-12 h). Vitamin levels (A, C, and E) were determined by ultra-performance liquid chromatography, and gamma-glutamyl transferase levels were assessed using an automated quantitative analysis system (Dimension®, Siemens).RESULTS:Although all groups showed sufficient serum vitamin A and E levels, the participants had inadequate dietary intake of these vitamins. Conversely, all groups had an insufficient serum level of vitamin C, despite adequate intake. The gamma-glutamyl transferase values did not differ significantly among the groups. However, elevated serum levels of this enzyme were observed in several patients.CONCLUSIONS:All groups exhibited high levels of oxidative stress, as evaluated by gamma-glutamyl transferase levels, and had inadequate intake of antioxidant vitamins. Therefore, the high exposure to oxidative stress found in our study, even in healthy pregnant and non-pregnant women, may increase the incidence of CHM in this region.
Highlights
Hydatidiform mole (HM) is a benign disorder resulting from an abnormal fertilization
Considering age, race, BMI, systolic and diastolic blood pressure, and vitamin supplementation (A, C, and E) parameters, no statistically significant differences were observed among the groups
Significant differences were observed among the groups, all groups showed normal median vitamin A serum levels, with serum concentrations within the reference interval (0.3-0.7 mg/dL)
Summary
Hydatidiform mole (HM) is a benign disorder resulting from an abnormal fertilization. It is characterized by atypical swelling of the placental villi and intense trophoblastic hyperplasia [1]. It is the most common form of gestational trophoblastic disease (GTD) and can progress to a malignant condition known as gestational trophoblastic neoplasia. Received for publication on January 2, 2020. Accepted for publication on March 12, 2020
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