Figure 3.

Collagen I/III ratio remains unaltered in PTB models. (A) Immunofluorescence of collagen I in gestation day 15, gestation day 18, day 15 LPS-treated and mifepristone-treated cervices reveals cervical collagen structure. (B) Immunofluorescence intensity of collagen I and collagen III was measured and collagen I/III ratio was determined for gestation day 15, day 18, day 15 LPS and mifepristone treatment, and LPS and mifepristone sham treatments. Ratio of collagen I/III was approximately 2.0 for all time points and treatments. Error bars represent standard error mean. n = 3 animals per time point/12 images per time point.