国产男靠女免费视频网站-国产男人搡女人免费视频-国产农村乱色xxxx-国产女人小便视频-狠狠干亚洲色图-狠狠干伊人网

CN EN

新聞資訊

NEWS

Drinking arsenic contaminated water can change the heart structure of young people

發(fā)布時(shí)間:2020-02-19發(fā)布者:點(diǎn)擊次數(shù):637

Drinking arsenic contaminated water can change the heart structure of young people and increase their risk of future heart disease, according to a study published in the journal Circulation: cardiovascular imaging.        

    In the United States, there are many Indian tribal communities and rural areas where water sources are contaminated with arsenic. In this study, researchers from the Melman School of public health at Columbia University analyzed urine samples of 1337 Indians in Oklahoma, Indiana, and South and North Dakota who were seriously arsenic contaminated to test their arsenic exposure after drinking arsenic contaminated water, and evaluated the size, shape and function of their hearts by echocardiography 。 The average age of the volunteers was 30.7 years, of which 61% were women. At the start of the five-year study, none of them had diabetes or heart disease.     

       The researchers found that these volunteers were more exposed to arsenic than the general population in the United States. When their urine arsenic levels were twice as high as normal, their risk of left ventricular hypertrophy increased by 47%, and that of hypertension by 58%. The researchers pointed out that although left ventricular hypertrophy is not a disease, it is often a precursor of heart disease; and the increased association between arsenic exposure and changes in heart structure in hypertensive people suggests that people with pre clinical heart disease may be more vulnerable to the effects of arsenic on cardiac toxicity.      

      Arsenic is one of the most common and harmful chemical pollutants. The mining and smelting of arsenic containing metals, as well as the production activities using arsenic or arsenic compounds as raw materials, can produce arsenic containing wastes (waste water, waste gas and waste residue), causing pollution to the environment. According to the World Health Organization, at least 50 million people around the world are threatened by arsenic poisoning. The researchers said they don't know whether the change of heart structure will be reversible after arsenic exposure is reduced. Since cardiovascular disease is still the main cause of premature death of adults around the world, their new research is more alarming, and the harm of arsenic and other metal pollutants can't be ignored.     

       Source: Science and Technology Daily

主站蜘蛛池模板: 福利在线看 | 成人a级高清视频在线观看 成人a大片在线观看 | 成人免费视频网站www | 成人激情黄色 | freexxxx性 | 欧美日韩一日韩一线不卡 | 中文字幕欧美在线 | 亚洲精品人成网在线播放影院 | 模特精品视频一区 | 免费国产在线观看 | 中国老妇另类xxxx | 视频一区二区三区自拍 | 色五月情| a亚洲va韩国va欧美va久久 | 揄拍自拍日韩精品 | 欧美图片在线视频 | 国产特黄视频 | 免费看黄色视屏 | 欧美精品亚洲精品 | 久一在线 | 亚洲精品成人网久久久久久 | 国产成人a视频在线观看 | 日韩在线观看不卡 | 在线观看日韩欧美 | 久久久香蕉 | 久久综合欧美成人 | 国内精品视频在线播放一区 | 国产精品亚欧美一区二区三区 | 日本欧洲亚洲一区在线观看 | 色在线视频观看 | 欧美一区二三区 | 欧美日视频 | 麻豆国产视频 | 97色在线观看免费视频 | 377p亚洲欧洲日本大胆色噜噜 | 成人一区二区免费中文字幕 | 五月婷婷国产 | 国产成人精品18 | 欧美一区二区三区在线观看 | 老司机日日摸夜夜摸精品影院 | 欧美a级在线 |