The human bone oxygen isotope ratio changes with aging

• Autorzy: Stepańczak B. , Szostek K. , Pawlyta J.
• Języki publikacji: EN

Abstrakty

EN

The oxygen isotope ratio (δ¹⁸O) in tissues is the outcome of both climatic and geographical factors in a given individual’s place of abode, as well as the physiology and metabolism of his organism. During an individual’s life, various rates and intensities of physiological and metabolic processes are observable in the organism, also within the bone tissue. The aim of this study is to verify whether involutional changes occurring as a result of the organism’s ageing have a significant impact on δ¹⁸O determined in the bone tissue. The material used for analysis was fragments of the long bones taken from 65 people, (11 children and 54 adults), whose remains had been uncovered at the early mediaeval (X–XI century) cemetery located at the Main Market Square in Kraków (Poland). The correlation analysis between δ¹⁸O of bone tissue and an individual’s age shows that up to 40 years of age, such a relationship does not exist in both, males and females. However, the conducted correlation analysis prompted the observation that after 40 years of life, δ18O in bone tissue significantly drops as females increase in age. Results suggest that the δ¹⁸O in bone tissue among older people may be the outcome not only of environmental factors but also involutional changes in bone linked to an organism’s ageing. Therefore, the interpretation of δ¹⁸O results relating to the description of the origin and migrations of older individuals should be treated with caution.

Słowa kluczowe

EN

oxygen isotopes; phosphate; human remains; aging

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2014
• Tom: Vol. 41, no. 2
• Strony: 147--159
• Opis fizyczny: Bibliogr. 99 poz., rys., wykr.

Twórcy

autor

Stepańczak B.

• Department of Anthropology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland

autor

Szostek K.

• Department of Anthropology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland

autor

Pawlyta J.

• GADAM Centre of Excellence, Institute of Physics, Silesian University of Technology, Krzywoustego 2, 44-100, Gliwice, Poland

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