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Anticancer Res:福建人乳腺癌发病率低于全国35%,原来是它的功劳

2019-01-27 佚名 生物探索

一项新的研究发现,乌龙茶可以破坏乳腺癌细胞,而且大量摄入这种茶的人患乳腺癌的风险更低。

在中国,乳腺癌是女性发病率最高的恶性肿瘤;在美国,平均每2分钟就会有一名女性被诊断患有乳腺癌;在全世界,乳腺癌每年夺去数十万妇女的生命。如何预防和治疗乳腺癌是很多科学家正在研究的课题。

近日,美国密苏里州圣路易斯大学医学院Chunfa Huang教授团队发现,乌龙茶可以破坏乳腺癌细胞,而且大量摄入这种茶的人患乳腺癌的风险更低。研究结果发表在Anticancer Research杂志上。

研究显示:乌龙茶提取物可以预防乳腺癌

之所以想要研究乌龙茶和乳腺癌的关系,是因为早先科学家已经发现了绿茶的抗癌作用。但是有关其他类型的茶和乳腺癌的相关研究非常有限。科学家想要通过这一研究发现更多具有抗癌作用的食物,从而满足人们的需求。

在最新的这项研究中,Huang教授团队检测了乌龙茶提取物对六种不同的乳腺癌细胞(ER阳性、PR阳性、HER2阳性和三阴性乳腺癌细胞)的作用。与此同时,他们同样用不同浓度的绿茶、红茶和黑茶的提取物处理这些细胞做对比。随后,研究人员检查了这些细胞的活力,并观察了DNA损伤和分裂,以及细胞形态的任何其他变化。

研究结果发现,绿茶和乌龙茶能抑制各种类型乳腺癌细胞的生长。相比之下,红茶和红茶提取物对细胞没有影响。

因此,Huang教授得出结论,“乌龙茶与绿茶一样,可诱导DNA损伤和分裂,对乳腺癌细胞的圣战、增殖和肿瘤发生具有抑制作用。它或可以作为一种抗乳腺癌的化疗药物。”

福建人乳腺癌发病率低于全国平均水平35%

此外,研究人员还检查了来自中国福建省癌症登记处的年度数据。结果发现,与全国平均水平相比,福建省患乳腺癌的可能性降低35%,死于乳腺癌的可能性降低38%。

他们还指出,定期饮用大量乌龙茶的人患乳腺癌的几率比福建省的平均水平低25%,与全国平均水平相比可能性降低50%。

当然,这还需要更多的研究来验证。Huang教授强调,“乌龙茶消费量较高地区的发病率和死亡率较低表明,乌龙茶具有很强的抗癌潜力。”

原始出处:

HAIHONG SH, et al. Oolong Tea Extract Induces DNA Damage and Cleavage and Inhibits Breast Cancer Cell Growth and Tumorigenesis. Anticancer Research November 2018 vol. 38 no. 11 6217-6223.

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    2019-02-22 wxl882001

    了解一下

    0

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    2019-02-01 wxl882001

    了解一下

    0

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