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JNCI Cancer Spectrum:姐妹们太阳晒起来!补充钙+维生素D可降低乳腺导管内原位癌风险!

2021-09-08 MedSci原创 MedSci原创

超3万绝经后女性随访数据显示,,钙+维生素D的补充可以降低乳腺DCIS的风险,提高CaD补充或能通过在疾病自然史的相对早期阶段发挥作用,最终降低乳腺癌风险。

导管原位癌( Ductal Carcinoma In Situ,DCIS)是以局限在乳腺基底膜内为特征的上皮细胞增殖,它被认为是乳腺浸润性导管癌的癌前病变,约15%~50%的病例在10年或以后可能发展为浸润癌。DCIS确诊后,乳腺癌发生和死亡风险增加将持续至少20年。流行病学研究表明,DCIS与浸润性乳腺癌,其中实验证据表明,钙和维生素D对乳腺癌有潜在的保护作用,其血清浓度水平很可能与乳腺癌风险呈负相关。

本研究随访了妇女健康倡议(WHI)的钙加维生素D的随机对照实验,这项实验囊括36282名无癌症的绝经后(50-79岁)妇女,她们被随机分配到干预组(每天1000mg碳酸钙+400IU维生素D3)或安慰剂组中。本研究的主要目的是评估在整个随访期间(干预期及干预后),钙和维生素D补充剂与乳腺导管原位癌风险的关系,采用Kaplan-Meier法估算DCIS的发生率,log-rank检验P值比较生存曲线。

总的来说,在整个随访期间确诊了595例DCIS(风险中位时间为18.7年;四分位区间10.7-20.9年),共有262例病例发生在干预阶段(风险中位数时间为7.1年),333例病例发生在干预后阶段(风险中位数时间为13.8年)。

Kaplan-Meier估计的DCIS在整个随访期间的干预状态累积危害

伴随的IRs显示,干预组在每个时间点的DCIS风险均低于对照组(干预IR/1000人-年 5、10、15、20、大于20年¼1.07、1.08、0.86、0.84和0.51;对照组IR/1000人-年5、10、15、20,大于20年¼分别为1.15、1.19、1.40、1.02、0.59)。分配给干预手臂女性DCIS风险降低了18.0% (HR¼0.82,95% CI¼0.70到0.96)。类似的结果分析时调整的乳房x光检查和临床乳腺检查频率(HR¼0.80,95% CI¼0.68到0.95),在排除纳入随访时间少于1年的参与者(HR¼0.81,95% CI¼0.68 - 0.97),或在排除既往乳腺活检的女性后(HR¼0.72,95% CI¼0.59 - 0.86)。检查依从性低于80.0%或50.0%的女性对结果没有影响(HR¼0.81 [95% CI¼0.68 - 0.96]和HR¼0.82 [95% CI¼0.69 - 0.96])。

Fine-Gray模型的结果也显示,与对照组相比,干预组DCIS的相对发生率降低(亚分布HR¼0.82,95% CI¼0.70至0.97)。如先前报道的,在干预期间,补充CaD与DCIS风险改变无关(HR¼0.91,95% CI¼0.71 - 1.15)。相比之下,干预后风险显著降低(HR¼0.76,95% CI¼0.61 - 0.94)。


根据干预状态和个人补充钙和维生素D的使用定义的组的间隔时间IRs、累积发病率和危险比

与安慰剂组在整个试验期间没有服用补充剂的女性相比,干预组使用补充剂的女性在干预结束后有更低的IRs,并降低了DCIS风险(HR¼0.72,95% CI¼0.56到0.91)。而在其他两组,IRs和HR无统计学意义。

在整个随访期间,在受DCIS各种潜在危险因素影响的子组中,尽管在统计学上大多并不显著,但仍有一些降低风险的迹象。仅限于干预阶段的分析显示,大多数关联接近于零,尽管有一些证据表明BMI (Pinteraction¼.046)、娱乐体育活动(Pinteraction¼.047)、吸烟(Pinteraction¼.03)和Gail模型评分(Pinteraction¼.001)的亚组之间存在异质性。

随访7年后,两组中发生浸润性乳腺癌和DCIS的风险相似。随后的分析包括干预期结束5年后发生的结果,浸润性乳腺癌发生风险的结果类似,但DCIS风险显著降低。目前的分析表明,在WHI试验的整个随访期间(包括明显延长的大约13.8年的干预后),补充CaD与乳腺癌DCIS风险的相关性。

在对数据的二次分析中,我们发现干预与降低乳房DCIS的风险有关。在排除随访时间少于1年或在试验开始前进行乳房活检的患者后,这些结果仍具有统计学意义。

总之,这项研究的结果表明,钙+维生素D的补充可以降低乳腺DCIS的风险。考虑到DCIS是乳腺癌的癌前病变,这些发现提高了CaD补充可能通过在疾病自然史的相对早期阶段发挥作用,最终降低乳腺癌风险的可能性。

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    2021-10-03 sjq027
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    2022-04-19 feather89
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  5. [GetPortalCommentsPageByObjectIdResponse(id=2062038, encodeId=1047206203882, content=<a href='/topic/show?id=e6e1e15509f' target=_blank style='color:#2F92EE;'>#癌风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71550, encryptionId=e6e1e15509f, topicName=癌风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d58a435, createdName=sjq027, createdTime=Sun Oct 03 10:26:10 CST 2021, time=2021-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1729106, encodeId=b8241e29106c0, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Tue Apr 19 12:26:10 CST 2022, time=2022-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1744908, encodeId=7ece1e44908b3, content=<a href='/topic/show?id=af1b3e01076' target=_blank style='color:#2F92EE;'>#原位癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37010, encryptionId=af1b3e01076, topicName=原位癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7b5435458088, createdName=july_987, createdTime=Fri Mar 11 18:26:10 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1933777, encodeId=39121933e775a, content=<a href='/topic/show?id=71a81258504' target=_blank style='color:#2F92EE;'>#NCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12585, encryptionId=71a81258504, topicName=NCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ee7414, createdName=lanyan20020086, createdTime=Tue Jul 12 21:26:10 CST 2022, time=2022-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1016006, encodeId=3008101600610, content=DCIS与CaD关系密切~, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20221003/9a80e2183136488ba79386e06cac4062/bbdae8021a2f4db3b500db0d6f5834bb.jpg, createdBy=5fc45490734, createdName=LILYMED, createdTime=Thu Sep 09 11:22:28 CST 2021, time=2021-09-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1015834, encodeId=23a5101583447, content=<a href='/topic/show?id=73c423e2572' target=_blank style='color:#2F92EE;'>#乳腺癌#</a>与<a href='/topic/show?id=cb89184e618' target=_blank style='color:#2F92EE;'>#VitD#</a>当然有关了, beContent=null, objectType=article, channel=null, level=null, likeNumber=150, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23725, encryptionId=73c423e2572, topicName=乳腺癌), TopicDto(id=18476, encryptionId=cb89184e618, topicName=VitD)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Wed Sep 08 22:03:43 CST 2021, time=2021-09-08, status=1, ipAttribution=)]
    2021-09-09 LILYMED

    DCIS与CaD关系密切~

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2062038, encodeId=1047206203882, content=<a href='/topic/show?id=e6e1e15509f' target=_blank style='color:#2F92EE;'>#癌风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71550, encryptionId=e6e1e15509f, topicName=癌风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d58a435, createdName=sjq027, createdTime=Sun Oct 03 10:26:10 CST 2021, time=2021-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1729106, encodeId=b8241e29106c0, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Tue Apr 19 12:26:10 CST 2022, time=2022-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1744908, encodeId=7ece1e44908b3, content=<a href='/topic/show?id=af1b3e01076' target=_blank style='color:#2F92EE;'>#原位癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37010, encryptionId=af1b3e01076, topicName=原位癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7b5435458088, createdName=july_987, createdTime=Fri Mar 11 18:26:10 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1933777, encodeId=39121933e775a, content=<a href='/topic/show?id=71a81258504' target=_blank style='color:#2F92EE;'>#NCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12585, encryptionId=71a81258504, topicName=NCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ee7414, createdName=lanyan20020086, createdTime=Tue Jul 12 21:26:10 CST 2022, time=2022-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1016006, encodeId=3008101600610, content=DCIS与CaD关系密切~, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20221003/9a80e2183136488ba79386e06cac4062/bbdae8021a2f4db3b500db0d6f5834bb.jpg, createdBy=5fc45490734, createdName=LILYMED, createdTime=Thu Sep 09 11:22:28 CST 2021, time=2021-09-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1015834, encodeId=23a5101583447, content=<a href='/topic/show?id=73c423e2572' target=_blank style='color:#2F92EE;'>#乳腺癌#</a>与<a href='/topic/show?id=cb89184e618' target=_blank style='color:#2F92EE;'>#VitD#</a>当然有关了, beContent=null, objectType=article, channel=null, level=null, likeNumber=150, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23725, encryptionId=73c423e2572, topicName=乳腺癌), TopicDto(id=18476, encryptionId=cb89184e618, topicName=VitD)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Wed Sep 08 22:03:43 CST 2021, time=2021-09-08, status=1, ipAttribution=)]
    2021-09-08 病毒猎手

    #乳腺癌##VitD#当然有关了

    0

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