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美国威斯康星州麦迪逊消息:威斯康星大学一项新的回顾性调查结果显示,在流行病学上与降低肺癌发病率有关的维生素A还可能增进癌症的化疗效果。研究人员发现,血中维生素A水平正常或高于正常的乳腺癌患者对化疗敏感度较维生素A含量低者高一倍多。据这项研究的负责人,威斯康星大学人类肿瘤学教授Ray Brown博士说,上述结果又一次表明,维生素A对机体的肿瘤免疫应答有关,尽管作用机制至今尚未明瞭。威斯康星大学调查的乳腺癌病人中,血浆维生素A水平正常或高于正常者有83％对肿瘤表现出免疫应答,而低水平组仅36％有此现
WILSON, Wisconsin, MADISSON NEWS: A new retrospective survey by the University of Wisconsin shows that epidemiology of vitamin A associated with reducing the incidence of lung cancer may also increase the chemotherapeutic effect of cancer. The researchers found that breast cancer patients with normal or higher levels of vitamin A in the blood were more than twice as sensitive to chemotherapy as those with lower vitamin A levels. According to the study’s head, Dr. Ray Brown, a professor of human oncology at the University of Wisconsin, said that the above results indicate once again that vitamin A is related to the body’s tumor immune response, although the mechanism of action is still unknown. In breast cancer patients surveyed by the University of Wisconsin, 83% of patients with normal or higher plasma vitamin A levels showed an immune response to tumors, compared with only 36% of low-level patients.