Association between maternal serum 25-hydroxyvitamin D level and pre-eclampsia

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Nutritional Science

Background:

• Pre-eclampsia is a major cause of maternal and fetal morbidity.
• Vitamin D deficiency is prevalent in pregnant populations globally.
• The role of 25-hydroxyvitamin D (25(OH)D) in pre-eclampsia pathogenesis requires further elucidation.

Purpose of the Study:

• To investigate the association between maternal plasma 25-hydroxyvitamin D (25(OH)D) levels during late pregnancy and the risk of developing pre-eclampsia.
• To differentiate the impact of 25(OH)D levels on non-severe versus severe pre-eclampsia.

Main Methods:

• A prospective cohort study involving 77 women who developed pre-eclampsia and 180 controls.
• Maternal plasma 25(OH)D levels were measured in the second and third trimesters.
• Statistical analysis was performed to compare 25(OH)D levels across groups and assess odds ratios.

Main Results:

• Women with severe pre-eclampsia exhibited significantly lower mean 25(OH)D levels compared to both non-severe pre-eclampsia and control groups.
• No significant difference in 25(OH)D levels was observed between the non-severe pre-eclampsia and control groups.
• A 25(OH)D concentration below 20 ng/ml was associated with a 12.45-fold increased odds of severe pre-eclampsia.

Conclusions:

• Severe pre-eclampsia is characterized by low maternal serum 25(OH)D levels.
• Maternal 25(OH)D levels show potential as an independent predictive marker for severe pre-eclampsia.
• Further research is needed to explore correlations with other clinical markers.