Юг России: экология, развитие (Jul 2017)

THE CONTENT OF SOME MICROELEMENTS IN THE GASTROINTESTINAL TRACT OF AQUATIC MAMMALS AND HUMANS

  • A. S. Tanasova,
  • T. S. Ershova,
  • I. V. Zaitsev,
  • V. F. Zaitsev

DOI
https://doi.org/10.18470/1992-1098-2017-2-237-244
Journal volume & issue
Vol. 12, no. 2
pp. 237 – 244

Abstract

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Aim. The aim of this study was to determine the content of chromium, cobalt, nickel, zinc, manganese and cadmium in the gastrointestinal tract of man and of the Caspian seal.Materials and methods. Material for research were the fragments of the tissues of the stomach and intestines of humans (Homo sapiens) (material obtained by sectional study of deaths from accidents healthy individuals aged 40 to 68 years) and Caspian seals (Phoca caspica) (samples of organs and tissues of Caspian seals aged 1 to 20 years were obtained in the result of the expeditions in the period from 2010 to 2014). The study of characteristics of cumulative distribution of the elements was performed by atomic absorption spectrography atomic absorption spectrometer MGA-915.Results. In the largest quantities among the studied trace elements in the stomach and intestines, both human and Caspian seals accumulates zinc, due to its physiological role in metabolic processes. To a lesser extent in the digestive tract of humans accumulate cobalt, and the seal cadmium, which is probably related to the quality of habitat of the marine mammal.Conclusions. Thus, the obtained data on the accumulation of zinc, nickel, cadmium, chromium, manganese and cobalt in tissues of the stomach and intestines of humans and Caspian seals testify about the peculiarities of the distribution of metals in the body, characterized by uneven and depend on the species, functional characteristics of organs, their cumulative activity and chemical properties of the metal itself.

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