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茶、血脂與乳腺癌患者無進(jìn)展生存

 SIBCS 2020-08-27

  既往研究發(fā)現(xiàn),綠茶有利于乳腺癌生存者的脂肪代謝。不過,茶攝入量對(duì)于乳腺癌患者生存的影響尚不明確。

  2019年5月16日,施普林格·自然《乳腺癌研究與治療》在線發(fā)表中國(guó)中山大學(xué)、廣東省疾病預(yù)防控制中心、中山大學(xué)附屬第一醫(yī)院、中山大學(xué)孫逸仙紀(jì)念醫(yī)院、中山大學(xué)腫瘤防治中心、中山大學(xué)附屬第三醫(yī)院的研究報(bào)告,分析了茶、茶攝入量、血脂對(duì)乳腺癌患者生存的影響。

  該研究于2008年4月~2012年3月在中國(guó)廣州入組新診斷原發(fā)性乳腺癌患者共計(jì)1551例,并隨訪至2017年12月31日,研究終點(diǎn)為無進(jìn)展生存(從乳腺癌診斷至復(fù)發(fā)、轉(zhuǎn)移、死亡或隨訪截止日期)。通過多因素比例風(fēng)險(xiǎn)回歸模型,對(duì)診斷時(shí)年齡、學(xué)歷、絕經(jīng)、臨床分期、雌激素受體狀態(tài)、HER2狀態(tài)等人口統(tǒng)計(jì)學(xué)和臨床影響因素進(jìn)行校正后,計(jì)算不同的茶、茶攝入量、血脂(甘油三酯、總膽固醇、低密度脂蛋白膽固醇)的無進(jìn)展生存風(fēng)險(xiǎn)比和95%置信區(qū)間。

  結(jié)果發(fā)現(xiàn),乳腺癌診斷后,與不飲茶者相比:

  • 所有飲茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低36%(風(fēng)險(xiǎn)比:0.64,95%置信區(qū)間:0.40~1.05)

  • 飲用綠茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低67%(風(fēng)險(xiǎn)比:0.33,95%置信區(qū)間:0.10~1.05)

  • 飲用紅茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低68%(風(fēng)險(xiǎn)比:0.32,95%置信區(qū)間:0.05~2.35)

  • 飲烏龍茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)高32%(風(fēng)險(xiǎn)比:1.32,95%置信區(qū)間:0.60~2.90)

  • 飲綠茶紅茶:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低28%(風(fēng)險(xiǎn)比:0.72,95%置信區(qū)間:0.22~2.32)

  • 飲普洱茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低55%(風(fēng)險(xiǎn)比:0.45,95%置信區(qū)間:0.11~1.85)

  • 飲其他茶者:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低39%(風(fēng)險(xiǎn)比:0.61,95%置信區(qū)間:0.22~1.68)

  • 飲非烏龍茶:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低48%(風(fēng)險(xiǎn)比:0.52,95%置信區(qū)間:0.29~0.91)

  所有飲茶者與不飲茶者相比:

  • 甘油三酯正常:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低50%(風(fēng)險(xiǎn)比:0.50,95%置信區(qū)間:0.25~1.00,交互分析P=0.962)

  • 甘油三酯超標(biāo):復(fù)發(fā)轉(zhuǎn)移死亡尚未發(fā)生

  • 總膽固醇正常:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低62%(風(fēng)險(xiǎn)比:0.38,95%置信區(qū)間:0.18~0.82)

  • 總膽固醇超標(biāo):復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)高22%(風(fēng)險(xiǎn)比:1.22,95%置信區(qū)間:0.13~11.8,交互分析P=0.634)

  • 低密度脂蛋白膽固醇正常:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低62%(風(fēng)險(xiǎn)比:0.38,95%置信區(qū)間:0.17~0.88)

  • 低密度脂蛋白膽固醇超標(biāo):復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低56%(風(fēng)險(xiǎn)比:0.44,95%置信區(qū)間:0.11~1.81,交互分析P=0.880)

  此外,乳腺癌診斷后,與不飲茶者相比:

  • 每周飲茶<7次:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低36%(風(fēng)險(xiǎn)比:0.64,95%置信區(qū)間:0.30~1.34)

  • 每周飲茶≥7次:復(fù)發(fā)轉(zhuǎn)移死亡風(fēng)險(xiǎn)低70%(風(fēng)險(xiǎn)比:0.30,95%置信區(qū)間:0.11~0.84,趨勢(shì)分析P=0.021)

  因此,該研究結(jié)果表明,乳腺癌診斷后,經(jīng)常飲茶(尤其綠茶,除了烏龍茶)有利于乳腺癌患者無進(jìn)展生存,尤其對(duì)于血脂正常的女性。

Breast Cancer Res Treat. 2019 May 16.

Effects of tea consumption and the interactions with lipids on breast cancer survival.

Zhang JY, Liao YH, Lin Y, Liu Q, Xie XM, Tang LY, Ren ZF.

School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; The Sun Yat-sen Cancer Center, Guangzhou, China; The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

PURPOSE: The effect of tea consumption on breast cancer survival remained to be explored. Meanwhile, green tea favorably facilitates lipid metabolisms in breast cancer survivors. This study aimed to examine the effect of tea consumption and the interactions with lipids on breast cancer survival.

METHODS: A total of 1551 breast cancer patients were recruited between April 2008 and March 2012 and followed up until 31 December 2017 in Guangzhou. The endpoint was progression-free survival (PFS). Hazard ratios (HR) and 95% confidence intervals (CI) were calculated using multivariate Cox proportional to estimate the associations.

RESULTS: PFS was better among women who regularly drank all teas (mainly green tea) except oolong after cancer diagnosis compared with non-tea drinkers (HR 0.52; 95% CI 0.29~0.91). This association was more evident among women with normal (HR 0.38; 95% CI 0.18~0.82) than higher (HR 1.22; 95% CI 0.13~11.82) total cholesterol, though the interaction was not significant. Moreover, the more they drank (≥7 times/week), the better prognosis was (HR 0.30; 95% CI 0.11~0.84). In contrast, oolong tea was observed to have a potential impaired effect on PFS.

CONCLUSIONS: Our findings suggested that regularly drinking all teas (mainly green tea) except oolong after diagnosis was beneficial to breast cancer survival, particularly for women with normal lipids, while oolong tea may have an impaired effect.

KEYWORDS: Tea consumption Lipids Breast cancer progression-free survival

PMID: 31098780

DOI: 10.1007/s10549-019-05253-5

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