Radiology:肾癌患者的世纪福音!减少腹部脂肪或可提高生存率!

2018-04-09 Zoe,Yui 转化医学网

肾癌是泌尿外科常见的恶性肿瘤,发病率占成人恶性肿瘤的2%一3%,全世界发病率每年增加2%,每年死于肾癌的患者近10000例。我们已经知道,肾癌的发病与肥胖有关。而近日,一项新的研究显示,脂肪沉积少的女性肾癌患者比脂肪沉积较多的患者存活时间更长。

肾癌是泌尿外科常见的恶性肿瘤,发病率占成人恶性肿瘤的2%一3%,全世界发病率每年增加2%,每年死于肾癌的患者近10000例。我们已经知道,肾癌的发病与肥胖有关。而近日,一项新的研究显示,脂肪沉积少的女性肾癌患者比脂肪沉积较多的患者存活时间更长。

该研究以“Synergy of Sex Differences in Visceral Fat Measured with CT and Tumor Metabolism Helps Predict Overall Survival in Patients with Renal Cell Carcinoma”为题发表在Radiology杂志上。

内脏脂肪为重要影响因素

圣路易斯华盛顿大学医学院的研究人员之一Joseph Ippolito博士表示:“肥胖是肾癌发生的主要危险因素,但并不一定预示不良结局。相反,这项新的研究表明,患者存活的时间不仅与总脂肪有关,而且与体脂分布有关。而体脂分布可以使用横断面CT进行计算,在CT扫描中,皮下和内脏脂肪位于身体的不同区域,从而可以计算出每个人的比例。皮下脂肪大多是无害的, 但是内脏脂肪与糖尿病,心脏病和许多种癌症有关。



糖酵解与肿瘤之间的关系

研究人员还研究了肿瘤细胞如何消耗葡萄糖,脂肪酸和其他营养物质,他们发现肿瘤细胞喜欢以糖作为能量来源。女性肾癌患者除了体重超标之外,肿瘤细胞还在继续发展。研究人员分析了345名男性和189名诊断为肾癌的女性的肿瘤基因表达谱。肿瘤细胞表现出低糖酵解的男性平均存活9年半,而高糖酵解肿瘤的平均存活时间仅为6年。



腹部脂肪只影响女性的肾癌生存率

研究者表示:“我们刚刚开始将性别作为癌症的重要变量进行研究。男性和女性有着截然不同的新陈代谢,男性身体内生长的肿瘤与女性内生长的肿瘤不同,因此男性和女性的癌症影响因素不同。腹部脂肪只影响女性肾癌的存活几率。”



研究结果

研究人员找到了77名女性,将她们的内脏脂肪和糖酵解的分析结合起来。结果显示,其中1/4有大量内脏脂肪的女性肾癌患者糖酵解基因显示活跃。这些女性平均在诊断后只存活了两年。值得注意的是,另外19名低内脏脂肪和低糖酵解类别的女性,没有一名在研究结束前死亡,而该研究持续了长达12年时间。

该研究为肾癌的治疗提供了一个新思路,通过减少患者的脂肪摄入来提高肾癌患者的生存率。这无疑是深受肾癌困扰患者的一大世纪福音!

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    2018-08-30 木村拓

    想知道男性效果

    0

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    2018-04-11 guoyibin
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    2018-04-10 梦想起航ing

    不错的视频很有用.学习了.谢谢分享

    0

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    2018-04-10 yfjms

    学习

    0

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