饮食因素和结肠直肠癌的风险:孟德尔的随机化研究
Xingyuan Li1, Shengqi Pan1, Jiaqi Wang1
1Department of Colorectal Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Nutrition and cancer
|July 3, 2024
概括
增加饮用水量可能会降低结肠直肠癌的风险,而摄入omega-3脂肪酸可能会增加. 这项研究使用了门德尔的随机化来探索饮食因素和癌症发病率.
科学领域:
- 营养流行病学 营养流行病学
- 遗传流行病学遗传流行病学
- 癌症研究 癌症研究
背景情况:
- 饮食因素显著影响结肠直肠癌 (CRC) 风险.
- 了解饮食和CRC之间的因果关系对于预防策略至关重要.
- 门德尔随机化 (MR) 提供了一个强大的方法来调查这些关联.
研究的目的:
- 调查15种饮食因素与结直肠癌发病率之间的潜在因果关系.
- 应用孟德尔的随机化方法来评估与CRC风险的遗传关联.
- 要区分omega-3和omega-6多不和脂肪酸对CRC的影响.
主要方法:
- 利用了IEU OPEN GWAS饮食因素数据库和CRC的FinnGen数据库中的数据.
- 采用逆方差权衡 (IVW) 方法作为主要的分析方法.
- 进行了灵敏度分析和多变量MR,以确保结果的有效性和调整混因素.
主要成果:
- 在基因预测的水摄入量和CRC风险 (OR=0.54) 之间发现了一个暗示性的逆因果关系.
- 基因预测的omega-3多不和脂肪酸 (PUFA) 摄入量显示出与CRC风险的积极关联 (OR=1.17).
- 在多变量MR分析中,欧米茄-3PUFA摄入量的关联仍然显著,独立于欧米茄-6PUFA摄入量.
结论:
- 增加饮水量可能与降低结直肠癌的风险有关.
- 较高的欧米茄-3 PUFA 摄入量暗示与结直肠癌的风险增加有关.
- 这些发现突出了水和omega-3PUFAs在结直肠癌病因学中的潜在作用.
相关概念视频
Cancer Prevention
6.1K
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
6.1K
Dihybrid Crosses
74.7K
Overview
74.7K
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
331
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
331
Mismatch Repair
4.8K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
4.8K


