头发: 至少需要0.25 克毛发。推荐收集1克毛发。
Heavy metals toxicity caused by increasing levels of pollution and use of chemicals in industry is a growing threat to our health and development of our children. High levels of toxic metals deposited in body tissues and subsequently in the brain, may cause significant developmental and neurological damage.A Metals Hair Test is ideal for checking current exposure to toxic metals. With respect to its contained elements, hair is essentially an excretory tissue rather than a functional tissue. Hair provides important information which can assist the practitioner with an early diagnosis of physiological disorders associated with aberrations in essential and toxic element metabolism.The U.S. Environmental Protection Agency stated in a recent report that “...if hair samples are properly collected and cleaned, and analyzed by the best analytic methods, using standards and blanks as required, in a clean and reliable laboratory by experienced personnel, the data are reliable.” (U.S.E.P.A. 600/4-79-049)
The CDC acknowledges that hair mercury levels provide a valuable maternal and infant marker for exposure to neurotoxic methylmercury from fish.Find out more about the sources of heavy metal toxicityhere.Click here to view the Recommendations By Disorder Chart (PDF)
为什么选择头发检测？Extensive research established that scalp hair element levels are related to human systemic levels. The strength of this relationship varies for specific elements, and many researchers consider hair as the tissue of choice for toxic and several nutrient elements. Unlike blood, hair element levels are not regulated by homeostatic mechanisms. Thus, deviations in hair element levels often appear prior to overt symptoms and can thereby be a valuable preliminary tool for predicting the development of physiological abnormalities.
With respect to its contained elements, hair is essentially an excretory tissue rather than a functional tissue. Hair element analysis provides important information which, in conjunction with symptoms and other laboratory values, can assist the physician with an early diagnosis of physiological disorders associated with aberrations in essential and toxic element metabolism.As protein is synthesized in the hair follicle, elements are incorporated permanently into the hair with no further exchange with other tissues. Scalp hair is easy to sample, and because it grows an average of one to two cm per month, it contains a “temporal record” of element metabolism and exposure to toxic elements.Nutrient elements including magnesium, chromium, zinc, copper and selenium are obligatory coactors for hundreds of important enzymes and also are essential for the normal functions of vitamins. The levels of these elements in hair are correlated with levels in organs and other tissues.Toxic elements may be 200-300 times more highly concentrated in hair than in blood or urine. Therefore, hair is the tissue of choice for detection of recent exposure to elements such as arsenic, aluminum, cadmium, lead, antimony, and mercury. The CDC acknowledges the value of hair mercury levels as a maternal and infant marker for exposure to neurotoxic methylmercury from fish.Through recent vast improvements in technology, instrumentation, and application of scientific protocols, hair element analysis has become a valuable tool in providing dependable and useful data for physicians and their patients. The U.S. Environmental Protection agency stated in a recent report that “...if hair samples are properly collected and cleaned, and analyzed by the best analytic methods, using standards and blanks as required, in a clean and reliable laboratory by experienced personnel, the data are reliable.” (U.S.E.P.A. 600/4-79-049)
Hair, however, is vulnerable to external elemental contamination by means of certain shampoos, bleaches, dyes, and curing or straightening treatments. Therefore, the first step in the interpretation of a hair element report is to rule out sources of external contamination.Hair element analysis is a valuable and inexpensive screen for physiological excess, deficiency or maldistribution of elements. It should not be considered a stand-alone diagnostic test for essential element function, and should be used in conjunction with patient symptoms and other laboratory tests.
Determine if metal toxicity or mineral deficiency is contributing to your disorder.Monitor the effects of chelation (elimination of heavy metals from the body).Identify ifsupplementationof important minerals may bring about significant improvementsConsultation about results is included with each test at The Great Plains Laboratory, Inc.