快⬆️⬆️点击上方蓝字关注并星标这个公众号，一起涨姿势～
词数：379 words
难度：★★☆☆☆
小贴士：
因公众号推送机制改版，很多朋友反映看不到我们，为了能更常看到我们的文章，请把我们“设为星标”，阅后点赞哦~
——大橙子留
✦ +
+
上期划线句答案
Even in the ostensibly true depictions of working life that students see, like the “day in my life” videos that were popular on TikTok a couple of years ago, intellectual labor seems optional and entry-level corporate positions seem like a series of rooftop hangouts, free lunches and team-building happy hours — less a job than a lifestyle.
即使是学生们看到的那些貌似真实的描述工作生活的样子，比如几年前在抖音海外版上流行的“我的一天”视频中，知识性劳动似乎也只是可有可无的，初级公司岗位看起来更像是一连串的顶楼聚会、免费午餐和团队建设的欢乐时光 —— 这不仅仅是一份工作，更像是一种生活方式。
✦ +
+
本期内容
◆
双语阅读
Para.1
Climbing rates of colon and rectal cancer among people under 50 years old is a striking recent trend that has alarmed and puzzled clinicians racing to figure out why. Now a new study published in Gut offers what might be a crucial insight: specific lipids, or fatty acids, that are abundantly found in ultra-processed foods may be promoting inflammation that causes cancerous colon cells to run amok.
Para.2
Colorectal cancer tumor samples from 81 people in the U.S. had excessive amounts of inflammation-boosting lipids, called omega-6 fatty acids—and lacked helpful lipids called omega-3 fatty acids, which help stop inflammation.
Para.3
Inflammation is a normal defensive response that the immune system switches on to heal wounds or fight off infection. But researchers in the 1800s found that colon tumors under a microscope looked like “poorly healed wounds,” says Timothy Yeatman, a co-author of the study and a professor of surgery at the University of South Florida. Rampant inflammation over long periods of time damages cells and hampers their ability to fight potentially cancerous cell growth. Omega-6 fatty acids often come from our diet, and Yeatman suspects ultraprocessed food is likely a major source of them.
Para.4
Many ultraprocessed foods and fast foods are prepared with seed oil—a cheap, common type of vegetable-based cooking oil that is chemically processed from seeds such as canola (rapeseed), corn, grapeseed and sunflower. These oils contain high amounts of omega-6 fatty acids. The study was not able to definitively connect the lipids detected in the colon cancer tumors to any specific food or oil, however.
Para.5
“I think the study confirms that diet is important but probably one of many factors,” says Andrew Chan, a gastroenterologist at Massachusetts General Hospital and a professor of medicine at Harvard Medical School, who was not involved in the new research. Chan and other researchers note that genetics, exercise, lifestyle and chemical or environmental exposures may influence colon cancer risk, too. Additionally, “there’s a lot of complexity to the food we eat, how it’s converted, how it’s metabolized and how it might eventually lead to tissue changes around things like lipids,” Chan says. “So there are still some pieces that need to be filled in before we can really tell a cohesive story about it.”
本文节选自：Scientific American（科学美国人）
发布时间：2024.12.15
作者：Lauren J. Young
原文标题：Ultraprocessed Foods High in Seed Oils Could Be Fueling Colon Cancer Risk
◆
写作句总结
原句：Rampant inflammation over long periods of time damages cells and hampers their ability to fight potentially cancerous cell growth.
结构：X over long periods of time damages Y and hampers their ability to do Z.
例句：Pollution over long periods of time damages ecosystems and hampers their ability to sustain biodiversity.
◆
阅读理解题
According to the provided information, which of the following best describes the relationship between inflammation, specific types of lipids, and colorectal cancer?
A. Omega-3 fatty acids, found in ultra-processed foods, promote inflammation and contribute to cancerous cell growth in the colon.
B. Excessive omega-6 fatty acids, potentially from ultra-processed foods, may promote inflammation, which can hinder cells' ability to fight cancerous growth in the colon, while a lack of omega-3 fatty acids may exacerbate this process.
C. Inflammation is a minor factor in colorectal cancer development, with genetics and environmental factors playing the most significant roles.
D. The study conclusively linked specific seed oils to the lipids found in colorectal cancer tumors.
◆
全文概括
A recent study suggests a link between high levels of omega-6 fatty acids, prevalent in ultra-processed foods, and increased colorectal cancer risk, especially in younger individuals. Tumor samples showed an abundance of inflammation-promoting omega-6 fatty acids and a deficiency in anti-inflammatory omega-3 fatty acids. While the study doesn't directly link specific foods to cancer, it highlights the potential role of dietary lipids in promoting chronic inflammation, a known cancer risk factor. However, other factors like genetics and lifestyle are also acknowledged as contributing to colorectal cancer development. More research is needed to fully understand the complex relationship between diet, inflammation, and colorectal cancer. The study's findings underscore the importance of a healthy diet in cancer prevention.
◆
打卡作业
翻译文章中的划线句，文末留言打卡，下期推送会在文章开头处公布参考翻译答案，大家一起来学习英语吧~
翻译 | 大橙子
校对 | 慢慢
词汇词组 | 胖葛柔儿
划线句讲解 | 流木
写作句总结 | 大橙子
免责声明：本文来自网络公开资料，仅供学习交流，其观点和倾向不代表本公众号立场。
