Telomerase activity was positive in bronchoscopically biopsied specimens from 8 of 11 lung cancer tissues, from 1 of 3 benign lung disease tissues, and from 3 of 12 normal bronchial mucosas.

• 3例肺良性病变支气管镜活检标本中有1例检测到端粒酶活性。12例支气管镜活检获得的正常支气管粘膜标本中有3例检测到端粒酶活性。