Fig. 5

Relationship between obstetric factors nonimpacting P1/P2 and chondrogenic differentiation. a Proportion of proteoglycans, stained by Alcian Blue, was measured using a custom-written Image J program. Multivariate regression analysis showed an increase in proteoglycan synthesis by differentiated cells from mothers with arterial hypertension and singletons. b Volume of pellets after 28 days of differentiation was measured. Multivariate regression analysis showed an increased volume of pellets in the event of normal pregnancy with regard to labor and delivery criteria. **p ≤ 0.05 after multivariate regression analysis