Age and gender characteristics of the chemical elements in the hair of residents of Ufa city

The formation of the elemental status of the human body living in a certain region de-pends on the biogeochemical, ecological and geographical factors of the area, nutrition, and pro-fession. The content of chemical elements in the body and their ratio are an indicator of human health. For residents of the city of Ufa, a large industrial center of the Republic of Bashkortostan, References intervals for the concentration of macroand microelements in hair have been developed. However, to identify deficiencies, excesses or imbalances of chemical elements in the body, it is necessary to take into account gender and age differences. In this regard, the purpose of this work was to study the age and gender characteristics of the content of macroand microelements in the hair of residents of a large industrial city. The content of 12 chemical elements in the hair of residents of the city of Ufa of the age groups 18-29 years, 30-44 years, 45-65 years and over 65 years old was determined by atomic absorption spectrometry using devices with flame and electrothermal atomization.

In all age groups, a deficiency of zinc and copper was detected in the hair of both men and women against the background of excess chromium, lead and manganese. Median concen-trations of iron, magnesium, cadmium, mercury and arsenic are within the 25-75 centile range. A deficiency of calcium in the hair of men under 65 years of age was revealed; in women it was found in the range of References values. An excess of 4-11% of the upper limit of permissible Ni content in men was esTableished. There is a tendency towards higher accumulation of cadmium, lead and arsenic in the hair of the male population. In women over 65 years of age, the minimum levels of essential elements are determined calcium, magnesium, zinc and copper, in men of this age copper, iron and manganese. Toxic elements cadmium, lead and arsenic accumulate to their maximum at 65 years of age and older.

The results of the study can be used as an additional method for determining the charac-teristics and time of onset of various diseases, as well as for the medical correction of diselementoses and enriching diets with essential micronutrients.

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