2023年4月21日

2023年4月20日紅肉消費和心髒病之間的聯係一直是克利夫蘭診所研究人員的一個研究課題。他們發現了新的機製，證明了吃紅肉為什麼和如何增加患心髒病的風險，以及腸道細菌在這一過程中所起的作用。你可能還對以下內容感興趣:胰島素抵抗，無法控製的體重增加的原因……研究已經證明了一個假設，即大量食用紅肉會增加患心血管疾病的風險。先前的研究指出，當腸道細菌消化紅肉和其他動物產品時，會形成一種名為TMAO(三甲胺n-氧化物)的代謝副產物，在此基礎上，這項新研究確定了腸道細菌依次轉化食物的遺傳機製和生化過程。他在Genengnews上寫道，之前的研究表明，血液中氧化三甲胺含量高與血栓、心髒病發作和中風的高風險有關。您可能還會對以下內容感興趣:罕見且令人興奮的案例。克利夫蘭診所的斯坦利·哈森博士說:“血液中的氧化三甲胺水平預示著未來心髒病發作、中風和死亡的風險。”氧化三甲胺還會導致血液凝固和動脈粥樣硬化。發表在《自然微生物學》雜誌上的這項研究提供了新的直接證據，表明胃中氧化三甲胺的產生由於吃肉而增加，從而導致血小板的形成，容易形成血栓。 You might also be interested in: Anal cancer: early signs and symptoms of the disease … “These new studies identify the group of gut microbial genes responsible for the second step in the process that links a diet high in red meat to increased risks of heart disease,” said Hazen, lead author of the paper. “This discovery helps us move toward new therapeutic targets to prevent or reduce the risk of diet-related cardiovascular disease,” he says. You might also be interested in: Doctor: Cholesterol has become a medical scare… Increased levels of TMAO in the blood and urine The study included 113 participants, who were given (in random order) complete meal plans with either red and white meat protein sources, or vegetarian options. After one month of the red meat diet, the vast majority of participants experienced an increase in TMAO levels in their blood and urine. On average, TMAO levels in the blood increased about 3-fold during the red meat diet compared to the white meat or meat-free diets, with some patients showing an increase of more than 10-fold. Blood tests showed that their platelets were more prone to forming blood clots. You might also be interested in: 3 effective ways to avoid the effects of depression r… Similar increases were seen in urine. After the patients stopped the red meat diet, blood and urine TMAO levels decreased over the following month. In another study, researchers found that carnitine, a nutrient found in red meat and some energy drinks, is also converted to TMAO in the gut by a two-step process facilitated by distinct gut bacteria. The information presented in this website is informative and does not replace the medical diagnosis or the product leaflet. Any decision regarding your health should only be made after consulting your doctor.