Thomas W M, Robertson J F, McKenna P G, O'Neill K L, Robinson M H, Hardcastle J D
University Hospital, Nottingham, UK.
Eur J Surg Oncol. 1995 Dec;21(6):632-4. doi: 10.1016/s0748-7983(95)95434-1.
Thymidine kinase (TK), an enzyme known to be associated with DNA synthesis, has been measured in the serum of patients with asymptomatic colorectal adenomas (n = 40), asymptomatic colorectal carcinoma (n = 21) and patients known to have hepatic metastases form colorectal tumours (n = 33); enzyme levels have been compared with an age-matched group of asymptomatic people with no evidence of colorectal neoplasia at screening colonoscopy (n = 26). TK activity in patients with metastatic disease (median 4.23; range 2.03-14.12 pmol/ml/h) and in patients with adenomas (median 2.33; range 1.59-8.73 pmol/ml/h) was significantly higher than in the normal controls (median 2.04; range 1.29-5.40 pmol/ml/h). However TK activity in patients with asymptomatic cancer (median 1.85; range 1.00-4.50 pmol/ml/h) was not significantly different from the control group.
胸苷激酶(TK)是一种已知与DNA合成相关的酶,已在无症状结肠直肠腺瘤患者(n = 40)、无症状结肠直肠癌患者(n = 21)以及已知有结直肠肿瘤肝转移的患者(n = 33)的血清中进行了检测;酶水平已与一组年龄匹配的、在筛查结肠镜检查时无结直肠肿瘤证据的无症状人群(n = 26)进行了比较。转移性疾病患者(中位数4.23;范围2.03 - 14.12 pmol/ml/h)和腺瘤患者(中位数2.33;范围1.59 - 8.73 pmol/ml/h)的TK活性显著高于正常对照组(中位数2.04;范围1.29 - 5.40 pmol/ml/h)。然而,无症状癌症患者(中位数1.85;范围1.00 - 4.50 pmol/ml/h)的TK活性与对照组无显著差异。