Figure 1From: Selection of housekeeping genes for gene expression studies in the adult rat submandibular gland under normal, inflamed, atrophic and regenerative statesMean weight ± SEM of unoperated, 24 hr ligated, 2 wk ligated and 2 wk ligated + 3 day de-ligated submandibular glands. * indicates statistical significance P < 0.05, ** P < 0.01 and *** P < 0.001 and were calculated using the Student's t-test (n = 5).Back to article page