Figure 2

Comparison of the gene expression of Col II, aggrecan, ER α , ER β and aromatase in the mandibular condylar cartilage in different groups (n=3). Error bars represent standard error. Levels of significance were determined using Student’s t-test. ^* P < 0.05 and ^** P < 0.01 indicate significant difference between experimental and age-matched control groups. ^# P < 0.05 and ^## P < 0.01 indicate significant difference between 2-wk and 4-wk experimental subgroups^{. △△} P < 0.01 indicate significant difference between male and their age and treatment-matched female subgroups.