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  • Title: Serum and plasma zinc, copper and iron concentrations in Aboriginal communities of North Western Australia.
    Author: Holt AB, Spargo RM, Iveson JB, Faulkner GS, Cheek DB.
    Journal: Am J Clin Nutr; 1980 Jan; 33(1):119-32. PubMed ID: 7355773.
    Abstract:
    Two aboriginal communities situated in the tropical north-west of the Australian continent have been investigated in regard to trace metal status (zinc, copper, and iron) and other laboratory and epidemiological information. A total of 364 persons, ranging in age from 5 to 77 years were studied. The incidence of hypozincemia (serum or plasma zinc concentration less than 0.71 micrograms/ml) of the two communities when combined was 24.4%, while hypercupremia (defined as serum or plasma copper levels greater than 1.38 micrograms/ml) was 47.9%. Depressed serum iron levels were demonstrated in more than 50% of the Aborigines studied. Hypozincemia was most prevalent (incidence 31 to 67%) in children at the time of the important pre- and postadolescent growth period (10 to 15 years) and in women beyond 60 years of age (incidence 33 to 64%). Serum total protein and vitamin B12 levels tended to be increased. Mild anemia was seen in approximately one in five persons aged less than 20 years. Intestinal parasites and pathogenic enterobacteria were frequently isolated in fecal specimens. In one community, half of the persons examined had positive isolates of enteric pathogens. Intestinal parasites predominated and were more frequently isolated from persons aged less than 20 years. Ancylostoma duodenale accounted for 32% of the pathogens isolated. Evidence is presented that suggests that both communities are exposed to numerous bacterial, viral, and parasitic infections. The diet consumed in these communities is predominately white flour and refined sugar. Geophagia is practiced in this area of Australia. It is emphasied that all the etiological prerequisites and many of the laboratory findings ascribed to the zinc deficiency syndrome appear to be operating in the two Aboriginal communities studied.
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