谈谈慢性汞中毒,现在去做毛发检测是否需要

aling

下面是我摘至美国Kirkmanlabs网站上一篇文章的一段.

TESTING FOR MERCURY TOXICITY

Testing for mercury toxicity is not always easy. Normally heavy metals such as lead, cadmium, and tin are easily detected using blood cell content, hair analysis or urine tests. This is not usually the case with mercury. After exposure to mercury, detectable levels known as "loosely bound" mercury are present in the blood for only a short time, a few weeks up to a couple of months. After that time, the mercury becomes attached to enzymes and proteins containing sulfhydryl groups and is then known as "tightly bound" mercury. Once tightly bound, it is distributed to organs and body tissues including the liver, kidney, brain and gut and is no longer detectable in blood, hair and urinalysis.



Some physicians use a mercury challenge test to determine mercury toxicity. In this test, a chelating di-sulfhydryl compound such as meso-2,3-dimercaptosuccinic acid (DMSA) or 2,3-dimercapto-1-propanesulfonic acid (DMPS) is administered and urine metal levels are measured. Though both of these compounds are effective, DMSA is the choice of DAN physicians because of its proven safety in children. These challenge tests can be very useful, but it must be cautioned that if mercury is very tightly bound, this test can be negative even though mercury is still present. For this reason, some physicians rely more on the physical signs of mercury poisoning or on lab test results which suggest mercury toxicity.



Physical signs which may be present include dilated pupils, increased heart rate, a mercury rash, excessive sweating, knee jerks, hand flaps and many more. Lab test results which are often indicative of the presence of toxic mercury consist of specific urine enzyme tests, hair analyses of heavy metals other than mercury, low glutathione, low glutathione peroxidase, low immune system markers (IgE, IgG, NK cells), and plasma sulfate. When a challenge test is negative but mercury toxicity is suspected due to physical signs or lab results, many doctors proceed with a detoxification protocol.

如果上述的理论是正确的话.现在通过毛发检测汞也是只能反映近期的体内汞状况.而不能反映过去的汞中毒状况









高霞灵







<font size="1" color="darkblue">Edited by - Aling on 2002/08/25  06:20:46</font>

aling

美国的医生建议服用DMSA和硫辛酸后才去做检测就是这个道理.没有螯和出来的汞,是检测不出慢性汞中毒.服食香菜可将汞游离出来,但还需要有能与汞结合的大麦绿粉.或绿藻粉.才能达到驱汞的目的.因此我认为想要用食疗方法驱汞,也一定要搞清它的机理.



高霞灵



<font size="1" color="darkblue">Edited by - Aling 重新编辑於 2002/08/25  06:19:11</font>