Table 3

Effect of doxycycline on the rates of alamar blue reduction by cultured epithelial cells and keratocytes (n = 6)

Culture conditionsRate of alamar blue reduction (RFU/min)
Epithelial cellsKeratocytes
Day 1Day 4Day 4
RFU, relative fluorescence units; LPS, lipopolysaccharide.
Control0.9 (0.3)1.1 (0.1)4.8 (0.4)
+ LPS (10 μg ml−1)0.9 (0.2)0.9 (0.2)5.1 (0.4)
+ Doxycycline (120 μm)0.9 (0.3)1.5 (0.4)1.6 (0.1)
+ Doxycycline + LPS0.8 (0.2)1.6 (0.4)1.3 (0.1)