直系亲属有癌症的话,你也有很大可能患病,这是为什么?
推荐回答(5个)
你会发现这样的现象,在某些家庭中有一个人患癌症,其他家庭成员可能也会患上这个癌症,这到底是怎么回事呢?
我国女排名将陈招娣因肝癌晚期于2013年不幸逝世,享年58岁。她的父母、3个姐弟均患类似病症身故。
民国传奇“宋氏三姐妹”,大姐宋霭龄因癌病逝,二姐宋庆龄患白血病(血癌)去世、三妹宋美龄也曾患上乳腺癌和卵巢癌,她们的父母和弟弟也都死于癌症。
欧洲霸主拿破仑人死于胃癌,其父、祖父、还有几个兄弟姐妹,皆是被癌症夺走了性命。
那我们为什么会患癌症呢?不仅仅是饮食、环境因素,还和我们的基因遗传有很大的关系!
肝癌:明显的特征就是家族史
通过基因水平证实,医学专家普遍认为肝癌是具有遗传性的。肝癌遗传易感性最明显的临床特征就是家族史,在一个家庭中,如果有肝癌患者,那么其家人患肝癌几率明显高于普通人。
胃癌:10%的胃癌都是遗传
经肿瘤专家介绍,有5%~10%的胃癌患者是属于遗传性胃癌,也就是父母的基因遗传给自己的。
肺癌:家人患肺癌+吸烟,风险高14倍
肺癌调查报告表明,有直系亲属患肺癌的,而自己本人又吸烟,患肺癌的风险比一般人要高14倍。有日本学者调查证明,肺泡细胞癌的女性患者中,有家族史的高达58.3%。
事实上,癌症确实存有家族聚集现象。比如说,乳腺癌:母亲停经前得癌,女儿很危险;胃癌:弥漫型胃癌常“遗传”;肠癌:癌变隐患肠息肉病,传男不传女;肝癌:如果父母得了肝癌,子女就是一级预防对象。
因为这些病状可能具有遗传作用,直系亲属中含有相同的基因来源。
如果父母得了肝癌,子女就是一级预防对象。因为乙型肝炎病毒的垂直传播,易造成肝癌的家族聚集倾向,更何况我国85%~90%的肝癌患者都来自乙肝。特别是携带乙肝病毒的母亲,其后代发生肝癌几率较高。
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