A representative western blot of p160 ROCK-1 protein expression in myometrium from women with normal BMI ( n = 7) compared to those in the obese category ( n = 7). The top band in the first blot indicated with the arrow is p160 ROCK-1 while the lower unidentified band, indicated with the broken arrow, was also quantified. The corresponding β-Actin western blot is also presented. The molecular weights (kDa) are represented by a line (a). Quantitative densitometric analyses of the expression of the p160 ROCK-1 and the lower band are presented below the western blots, with β-Actin-normalised densitometric units plotted against BMI values, at term pregnancy ± SEM (indicated with error bars). The significance values (P) are indicated (b).