European J Epidemiology:以后吃橙子要关灯了!研究表明,柑橘摄入过多会增加皮肤癌风险

2020-07-30 生物探索 生物探索

柑橘类产品是百姓餐桌上最常见的水果之一,这类水果主要包括橙子、柑桔、葡萄柚和柠檬。但你们知道吗?柑橘类产品富含呋喃香豆素,而这类物质具有光毒性作用(本身对人体不会造成伤害,但在阳光中紫外线的作用下,会

柑橘类产品是百姓餐桌上最常见的水果之一,这类水果主要包括橙子、柑桔、葡萄柚和柠檬。但你们知道吗?柑橘类产品富含呋喃香豆素,而这类物质具有光毒性作用(本身对人体不会造成伤害,但在阳光中紫外线的作用下,会发生化学反应并产生毒性)。

有研究报道,呋喃香豆素可以与紫外线相互作用,刺激黑色素瘤细胞的增殖。在血液中,它还会分布到多种类型的组织中,并促使DNA复制受损。此前,两项大型前瞻性研究结果也都表明,柑橘摄入量与皮肤癌风险之间具有潜在关联。但这些研究缺乏显示相关性的流行病学数据。

对此,7月24日,来自法国萨克雷大学的研究人员发布了一项欧洲癌症和营养前瞻性调查(EPIC)结果,该研究涉及52万参与者,旨在研究柑橘摄入量与皮肤癌风险之间的潜在关联。相关成果发表于《欧洲流行病学杂志(European Journal of Epidemiology)》。

https://doi.org/10.1007/s10654-020-00666-9

研究人员从10个欧洲国家/地区的23个中心招募了521,448名参与者,年龄在25-70岁之间。排除无效数据后,他们在270112名参与者中确定了8448例皮肤癌病例。分析结果表明:柑橘类水果摄入量高会增加患皮肤癌的风险,特别是黑色素瘤。与平均每天柑橘摄入量10.8 g相比,平均每天摄入量为217.5 g时,基底细胞癌和鳞状细胞癌的风险分别高出11%和23%。

研究人员发现,与柑橘摄入量较低的参与者相比,柑橘摄入量较高的参与者通常较年轻,其更有可能是女性,同时受教育程度和体力活动水平较高,并且摄入的总能量、蔬菜、非柑橘类水果和非柑橘类果汁更高。但是,他们不太可能吸烟,也不会饮酒和喝咖啡。

根据柑橘总摄入量的四分位数得出的研究参与者的基线特征

此外,研究人员没有发现生活方式可以改变柑橘摄入量与皮肤癌风险之间的关联,也没有证据表明不同国家或不同性别间存在异质性。

也就是说,吃太多柑橘类水果后,要避免紫外线照射,包括晒太阳和日光灯,尤其是皮肤本身比较敏感、容易受到紫外线伤害的人,可以采取必要的防晒措施。但对于如此热爱柑橘类水果的小编来说,少吃是不可能的,防晒霜又总忘记涂,只能选择晚上关灯吃了。毕竟,柑橘类水果也具有抗氧化作用,又是维生素C的重要来源,适量摄入还是好处更多。

原始出处:

Yahya Mahamat-Saleh, Iris Cervenka, Marina Kvaskoff, et.al. Citrus intake and risk of skin cancer in the European Prospective Investigation into Cancer and Nutrition cohort (EPIC). European Journal of Epidemiology 24 July 2020

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