Telomeric repeat amplification protocol polymerase chain reaction enzyme linked immunoadsordent assay (TRAP-PCR-ELISA) was used to examine the telomerase activity.

• 用端粒重复序列扩增-聚合酶链反应-酶联免疫吸附测定(TRAP-PCR-ELISA)法检测端粒酶活性的变化；