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: 日韩亚洲欧美综合一区二区三区 | 国产亚洲精品拍拍拍拍拍 | 免费在线看a | 欧美精品第二页 | 好男人www社区资源免费观看 | 国产一级大片免费看 | 久久精品第一页 | 91久久线看在观草草青青 | 日鲁夜鲁鲁狠狠综合视频 | 欧美人与牲动交xxxxbbbb | 夜色私人影院永久地址入口 | 在线观看一区二区精品视频 | 手机在线一区二区三区 | 2022天天操 | 国产精品久久久久久免费播放 | 国产精品成人麻豆专区 | 曰批全过程免费观看视频 | 亚洲欧美久久一区二区 | 欧美一级视频在线高清观看 | 中文字幕日韩视频 | 在线视频一区二区 | 久久免费99精品国产自在现线 | 香港三级日本三级三级人妇 | 亚洲国产欧美在线人网站 | 精品国产成人高清在线 | 欧美特黄一级视频 | 亚洲大尺度视频 | free中国性xxxx | 国产综合色在线视频区 | 很黄的网站在线观看 | 在线观看免费国产视频 | 看免费黄色一级视频 | 国产精品视频免费视频 | 最近中文字幕免费mv视频8 | 日韩中文字幕在线看 | 曰皮全部过程视频免费国产 | 爆操极品美女 | 青草视频网站在线观看 | 西西人体大胆77777视频 | 成人短视频在线观看 | 免费一级a毛片在线播 |