I don't have access to the full-text yet, but I have this quote:
"If our results are confirmed by others, they suggest that pre-eclampsia may be added to the growing list of adverse health consequences of maternal vitamin D deficiency," say the researchers.
"Vitamin D supplementation in early pregnancy should be explored as a safe and effective means of preventing pre-eclampsia and promoting neonatal well-being."
However, as always I have to remind everyone not to experiment on themselves. Researchers thought antioxidants would probably work, and instead they made it worse.[xx(] Ask your care providers and make sure they know what you're taking!