Figure 3.

Telomerase activity in primary tumors and saliva. Representative samples of telomerase-positive tumors, non-heat treated telomerase-positive saliva samples, and non- heat treated telomerase-negative saliva samples. Arrow indicates the position of internal PCR control band. CH, CHAPS([(3-cholamidopropyl) dimethylammonio]-1-propanesulfonate) buffer alone without heat treatment; PC(positive control) cell extract-positive control; V- telomerase-negative saliva; VI and VII, telomerase positive in tissue; I, II, III and IV, telomerase-positive saliva (I and IV-Premalignant saliva samples, II and III OSCC saliva samples). This figure is a composite of four different autoradiographs displaying variations of some banding patterns due to a slight variation in electrophoresis conditions