Serum sialic acid levels in normal pregnant and non-pregnant women.

Serum sialic acid estimation was done in 97 pregnant and 61 non-pregnant healthy women. A progressive rise in the level was observed as the pregnancy advanced. The rise was higher in subjects above 30 years of age. Non-pregnant women weighing more than 50 kg a significantly higher serum sialic acid level, but the contrast was reversed during pregnancy and puerperium.