This research paper by Prof. Sidney Katz from the Chemistry Faculty of Rutgers University compared the arsenic concentration of scalp hair, blood, urine and drinking water. A clear correlation was found between exposure, absorption and excretion, leaving little doubt that elevated levels of arsenic in the hair can reflect systemic arsenic intoxication. According to the eminent researcher, “hair analysis has potential merit as a screening procedure for poisoning by arsenic.”
La pollution atmosphérique est un problème mondial pour des millions de personnes exposées à des concentrations de polluants atmosphériques au-dessus des normes de sécurité, y compris les particules fines (PM2.5). À Haïfa (Israël), le lien apparent entre la pollution et le développement du cancer est un sujet préoccupant. L’étude s’est concentrée sur l’évaluation de l’exposition aux métaux des enfants et des adultes résidant dans la région de Haïfa. Une charge toxique élevée en métaux de combustion tels que le nickel et des substances potentiellement cancérogènes tels que le mercure a été déterminée. Des échantillons de cheveux ont été recueillis auprès de personnes vivant dans et autour de Haïfa entre 2007 et 2015. Les patients sélectionnés ont été séparés en trois groupes, hommes et femmes adultes, et les enfants d’un âge moyen de 6,6 ans. Une exposition multiple aux métaux a été déterminée dans tous les groupes, la plus grande charge ayant été trouvée chez les enfants.
Article publié dans le British Journal of Medicine and Medical Research 2015 10(6):1-14
Elemental anomalies in hair as indicators of endocrinologic pathologies and deficiencies in calcium and bone metabolism.
Miekeley N, de Fortes Carvalho LM, Porto da Silveira CL,Lima MB.
Department of Chemistry, Pontifical Catholic University, Rio de Janeiro, Brazil.
PMID: 11603827 [PubMed - indexed for MEDLINE]
Analytical results obtained by ICP-MS of hair samples from a group of women from Rio de Janeiro city show that abnormal Ca and P concentrations in this compartment can be an indication of pathologies affecting the metabolism of these elements. The study was conducted initially on 900 women (outpatients, >40 years). From this group, approx. 24% showed anomalously high or low Ca concentrations in hair, in some cases correlated to anomalies of other elements. In 144 cases (16%), very high concentrations of Ca (up to 8,285 mg/kg) were measured, frequently correlated with a high concentration of P (up to 4,720 mg/kg), exceeding by far the reference intervals for this age/sex group. Follow-up studies of a few individuals from this group gave first indications that their abnormal hair compositions were related to endocrinologic pathologies affecting calcium/bone metabolism. Very low hair Ca-concentrations were observed in older women (72 cases, age >60 years) and related to senile osteoporosis. Complementary investigations of patients with recognized endocrinologic pathologies (hyperthyroidism, hyper- and hypoparathyroidism) and osteomalacia gave statistical support for the hypothesis that hair concentrations of Ca, P and various other trace elements are influenced characteristically by these diseases. In patients with hyperparathyroidism and hyperthyroidism, both elements showed significant increase in hair, whereas patients with rickets/osteomalacia had only elevated Ca concentrations, together with suspiciously high toxic levels of Cd and various other elements (Fe, Mn, Mg, Sr, Ba). Patients with hypoparathyroidism had significantly decreased Ca and P concentrations in hair. Statistical evaluation of these data by multivariant analysis (MANOVA) using a contrast matrix and by discriminant analysis showed that elemental hair anomalies can be used to diagnose correctly the above-mentioned pathologies, demonstrating the usefulness of hair analysis as a complementary tool for the detection of disturbances in calcium/bone metabolism.
El profesor Busby de la Universidad del Ulster, en cooperación con Micro Trace Minerals, Alemania, ha estudiado el uranio y otros contaminantes encontrados en el cabello de los padres de niños con anomalías congénitas en Fallujah, Irak.
El profesor Christopher Busby ha dedicado una buena parte de su tiempo y esfuerzo a este estudio. Estamos muy agradecidos y orgullosos de formar parte de esta importante investigación.
El artículo está publicado en Conflict and Health: Uranium and other contaminants in hair from the parents of children with congenital anomalies in Fallujah, Iraq
http://www.conflictandhealth.com/content/5/1/15
Hair mineral analysis (HMA) reflects how efficiently the root was nourished (or intoxicated) via the blood stream. As long as metals circulate, hair tissue will be supplied. This feeding and storing mechanism continues over time. Therefore, hair mineral levels reflect how well or poorly the hair tissue was supplied over time. HMA values do NOT reflect present variations as seen in blood or urine.
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Hair mineral analysis and behavior: An analysis of 51 studies.
Rimland, Bernard; Larson, Gerald E. .Journal of Learning Disabilities, Vol 16(5), May 1983, 279-285.
51 studies on the relationship between hair mineral levels and various aspects of human behavior that covered a wide range of behaviors: learning disabilities, retardation, hyperactivity, criminality and delinquency, behavior disturbances, autism, schizophrenia, anorexia, hypoglycemia, fatigue, anxiety, allergy, senility, phenylketonuria, and giftedness and intelligence. High levels of certain minerals, especially Pb and Cd, and low levels of other minerals tend to be associated with undesirable behavior. There is a need for vigorous attempts to eliminate sources of environmental exposure to heavy metals and for further study of the role of mineral excesses and deficiencies in human health and behavior. (42 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)