06/07/2025
A good read - The Gut Clue
Episode 7: The Gut Clue — Why Bowel Cancer Is Rising in the Young
第十一集：肠道警讯——为何越来越多年轻人患上大肠癌？
【Senior Health Conversations with Your Pharmacist】
《药师陪你聊健康》第十一集
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“Pharmacist, I thought bowel cancer was an older person’s problem. Why are young people now getting it?”
「药师，我一直以为大肠癌是年纪大的病，为什么现在连年轻人也得了？」
You’re right — it used to be rare in people under 50. But by 2030, experts warn that bowel cancer may become the leading cause of cancer death in people under 50.
你说得没错，以前50岁以下的大肠癌很罕见。但根据最新研究，到了2030年，大肠癌可能成为50岁以下人群的首要癌症死因。
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A new suspect: Colibactin 来自肠道的“嫌疑人”：Colibactin毒素
Researchers have discovered a hidden clue: colibactin, a toxin made by certain strains of E. coli bacteria living in the gut.
科学家发现了一条关键线索：Colibactin（大肠菌素），是某些大肠杆菌产生的一种毒素，存在于我们肠道中。
Colibactin damages DNA in cells lining the bowel
It creates mutations that may lead to cancer
Children exposed before age 10 may be at greater risk later in life
Colibactin 会：
破坏大肠细胞的 DNA
导致细胞突变，最终可能引发癌变
如果10岁前暴露于此毒素，累积的伤害可能在成年后致癌
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What did the study find? 研究发现了什么？
Scientists analyzed 981 bowel cancer samples from 11 countries
Colibactin-linked mutations were 3 times more common in people diagnosed before age 40
In older adults (70+), these mutations were much less frequent
研究分析了来自11个国家的981份大肠癌样本，发现：
40岁前确诊者体内的Colibactin相关突变是年长者的3倍
这表示越早接触毒素，风险越早累积
(Source: Cancer Research UK, April 2025)
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It’s not just about age — it’s about early gut damage
问题不只是年纪，而是小时候肠道已被伤害
Many of these DNA changes begin in childhood, and take decades to turn into cancer
That’s why the focus is now shifting to early prevention
很多癌前变化可能在小时候就已开始，几十年后才出现癌症
所以现在研究开始关注：如何从小就预防？
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What can we do? 我们可以怎么做？
1. Build a healthy gut early 从小养好肠道菌群
High-fiber foods like fruits, vegetables, oats
Fermented foods (e.g. yogurt, miso, tempeh)
Avoid ultra-processed food, sugary drinks, and red meat excess
多吃富含纤维的蔬果、全谷类
适量摄取发酵食物（如优格、味噌、天贝）
少吃高加工食品、含糖饮料和过量红肉
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2. Use antibiotics carefully 谨慎使用抗生素
Overuse in childhood may wipe out good bacteria and allow harmful ones like colibactin-producing E. coli to thrive
Only take when prescribed, and complete the full course
小时候滥用抗生素可能破坏好菌环境
让像Colibactin这种“坏菌”有机会滋生
抗生素要遵照医嘱，完整服用疗程
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3. More research is needed — but awareness matters now 研究仍在继续，但我们可以先采取行动
Scientists are exploring whether probiotics or dietary changes can reduce risk
Families can already start building gut-friendly habits
科学家正研究益生菌和饮食是否可减低风险
但我们现在就可以开始照顾肠道健康
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Takeaway for Families & Seniors 给长者与家庭的提醒：
Gut health is not just about digestion — it’s about DNA, cancer, and long-term wellness
肠道健康不只是消化问题，更关系到基因、癌症与未来健康
Start protecting the next generation early:
wholesome diets, minimal unnecessary antibiotics, and awareness of gut health
现在开始，为下一代打造“健康肠道环境”： 健康饮食、减少抗生素滥用、提升肠道保健意识
Good gut habits in childhood = lower cancer risk in adulthood.
小时候养好菌，长大少风险。
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