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楼主:百姓共享 时间:2019年12月16日 20:36:35 点击:0 回复:0
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每天刷牙两次可预防癌症 -- 18:9: 来源: 哈佛大学公共卫生学院教授发现,梭杆菌可以经由牙龈出血进入血液循环,从而进入肠道,导致肠道癌,而每天至少刷牙两次则可以有效避免这种情况的发生 Brushing your teeth regularly could help to prevent bowel cancer, a study suggests.据研究显示,定期刷牙可有助于预防肠道癌This is because the mouth bacteria that cause bleeding gums can travel via the blood to the bowel where they could trigger cancer or worsen existing tumours.这是因为人口中有可以引起牙龈出血的细菌,而这些细菌能够通过血液进入肠道,从而引发癌症或者恶化已有的肿瘤症状The bug fusobacterium has been found to be hundreds of times more common in cancerous tumours than in normal cells.和正常细胞相比,在恶性肿瘤细胞中发现“梭杆菌(fusobacterium)”的几率要高几百倍Now researchers have found that the microbes can make pre-cancerous growths in the bowel turn cancerous. They can also make any existing tumours in the bowel grow larger.现在研究员们已经发现,这种细菌能够使得肠道中的良性肿瘤恶化演变成为癌症Scientists are investigating how the bacteria make their way to the gut through the bloodstream. One theory is that it may happen if a person has bleeding gums.目前科学家们正在研究这种细菌到底是如何通过血液循环进入肠道的有人提出,如果一个人牙龈出血的话,那么这种细菌就有可能进入肠道The researchers found that the bacteria have a protein that allows them to stick to sugar molecules attached to benign growths called polyps as well as cancer tumours in the bowel.研究者们发现,这种细菌携带有一种蛋白质,这种蛋白质使得它们可以黏在糖分子上,从而依附在肠道内促进息肉或者癌症肿瘤的生长The bacteria are anaerobic – they do not breathe oxygen – so are well suited to live in the bowel.这种细菌是一种厌氧菌(不蓄意呼吸氧气),它们很适合在肠道内生存After sticking to the polyps or tumours, the presence of the bacteria promotes their growth, according to the research published in Cell Growth and Microbe.据这份发表在《细菌生长与微生物杂志上的研究来看,在附着在息肉或者肿瘤上之后,这种细菌将会促进它们的生长By targeting this process, the researchers believe that it may lead to new drugs to treat bowel cancer which around one in of us will develop in our lifetimes.通过对这一过程的研究,研究者们认为这有可能会导致开发出新药物来治疗肠癌(每个人之中就会有一个人患肠癌)Co-author Wendy Garrett, a professor at Harvard University’s TH Chan School of Public Health, said a greater understanding of the mechanism may help stop people developing cancerous tumours.来自哈佛大学TH Chan公共卫生学院的教授是温蒂·加勒特是这项研究的联合作者,她指出对这一机制的更进一步理解有可能帮助人们不再患癌症She added: ‘Alternatively, and perhaps more importantly, our findings suggest that drugs targeting the same or similar mechanisms of bacterial sugar-binding proteins could potentially prevent these bacteria from exacerbating colorectal cancer.’她补充说道:“或者,也许更加重要的是,我们的研究结果表明如果立足于相同或者相似的细菌糖结合蛋白机制的研究,那么就有可能防止这些细菌恶化肠癌”Fusobacterium worsens gum disease in the mouth because it acts as an ‘anchor’ around teeth and gums other bacteria, helping to cause a biofilm – a ‘mat’ of different bacteria that eat away at the gums, causing inflammation, and loosening the teeth.口腔内的梭杆菌可以恶化牙龈病,因为这种细菌就好像其他细菌的“锚”一样环绕在牙齿和牙龈的周围,从而有助于形成一个生物膜--各种细菌在这里堆积厚厚的一层,把牙龈周围都侵蚀殆尽,导致发炎、牙齿松动As well as worsening cancer, the bugs have also been found to worsen the bowel condition ulcerative colitis, which in turn is also linked to cancer.除开能够恶化癌症外,这种细菌也能够恶化肠道条件,导致溃疡性结肠炎,这反过来又和癌症有关

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