Figure 5. TGF-β in conjunctiva. A: Actin-corrected RT–PCR in conjunctival tissue of 3- and 10-week-old rats after keratoplasty, normalized to non-grafted eye. Transforming growth factor beta (TGF-β) transcription in the grafted eyes of 3-week-old rats is strongly induced on POD 3 (n=3, *p<0.01). B: Actin-corrected RT–PCR in conjunctival tissue after keratoplasty of the grafted eyes of 3-week-old rats, normalized to grafted eyes of the 10-week-old rats (n=3, *p<0.01).