JCO:雄激素阻断治疗可能导致前列腺癌患者发生认知障碍

2015-05-14 Zhang JL译 MedSci原创

癌症患者在接受包括放射治疗、激素治疗、化疗治疗等各种治疗后,可能发生认知障碍。发生在化疗后的认知障碍通常称为“化疗脑”。认知障碍的迹象包括健忘、无法集中注意力、信息回顾障碍、多任务执行障碍以及在处理信息速度变慢等。经历癌症治疗后认知问题的情况是比较普遍的,估计发病概率约为15 - 70%。在过去,已经有一些研究分析乳腺癌患者接受治疗后所出现的这类副作用,但很少对前列腺癌患者接受雄激素剥夺治疗(AD

癌症患者在接受包括放射治疗、激素治疗、化疗治疗等各种治疗后,可能发生认知障碍。发生在化疗后的认知障碍通常称为“化疗脑”。认知障碍的迹象包括健忘、无法集中注意力、信息回顾障碍、多任务执行障碍以及在处理信息速度变慢等。经历癌症治疗后认知问题的情况是比较普遍的,估计发病概率约为15 - 70%。

在过去,已经有一些研究分析乳腺癌患者接受治疗后所出现的这类副作用,但很少对前列腺癌患者接受雄激素剥夺治疗(ADT)后出现认知障碍的情况进行研究。来自莫菲特癌症中心的一项新研究表明,接受雄激素剥夺治疗的前列腺癌患者有更大的几率出现认知功能受损。该项研究结果发表在最新一期Journal of Clinical Oncology杂志上。

雄激素剥夺疗法广泛用于治疗前列腺癌,通常是作为在一个开放式晚期前列腺癌治疗的基础。 据估计,44%的前列腺癌患者接受ADT治疗。这种类型的治疗的目标是阻止包括睾丸激素在内的雄性激素对前列腺癌细胞生长的刺激作用。然而,ADT在前列腺癌患者认知功能方面的副作用尚未被研究。

在这项研究中,研究人员使用常规的测试对接受雄激素剥夺治疗的58名前列腺癌患者以及没有接受ADT治疗的84名前列腺癌患者的认知能力进行检测,并以88名无肿瘤患者为对照。研究结果显示,接受ADT治疗的男性70%更有可能在治疗后的6个月发生认知障碍,而在一年后认知障碍的发生率则为前者的两倍以上。

研究人员还首次报道在雄激素剥夺疗法治疗后发生认知障碍可能相关的基因。他们发现拥有特定模式GNB3基因的患者将更有可能在雄激素剥夺疗法治疗后出现认知问题,其发生概率是无该基因患者的14倍。

“像我们这样的研究显示识别并预测认知障碍相关基因的重要性。这些信息可以基于病人的独特的特征,用以进一步定制个体化癌症治疗,以发现可能倾向于耐受这种标准治疗的患者。” Moffitt生殖泌尿系肿瘤研究计划的高级成员Mayer Fishman博士说。

这项研究的结果可能会影响医生如何决定病人的最佳治疗方案。“在决定是否接受雄激素剥夺治疗前列腺癌之前,应充分考虑发生认知障碍的风险。”

原始出处:


B.D. Gonzalez, H. S. L. Jim, M. Booth-Jones, B. J. Small, S. K. Sutton, H.-Y. Lin, J. Y. Park, P. E. Spiess, M. N. Fishman, P. B. Jacobsen. Course and Predictors of Cognitive Function in Patients With Prostate Cancer Receiving Androgen-Deprivation Therapy: A Controlled Comparison. Journal of Clinical Oncology, 2015; DOI:10.1200/JCO.2014.60.1963

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    2015-12-04 lidong40
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    2015-05-18 zhouanxiu

    没有看到他观察指标所用量表

    0

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    2015-05-17 huaxipanxing

    看看

    0

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