Sex and age distribution of the Hyperostosis frontalis interna (based on skulls analysis of tra-ditional societies in Eurasia)

Author:

Kolyasnikova A.S.1ORCID

Affiliation:

1. Lomonosov Moscow State University, Anuchin Research Institute and Museum of Anthropology

Abstract

Hyperostosis frontalis interna is an overgrowth on the inner surface of the frontal bone [Hershkovitz et al., 1999]. HFI is accompanied by hormonal and metabolic disorders usually [Hershkovitz et al., 1999]. The rate of HFI in historical groups is low (1–4 %) compared to the modern population, where the incidence of HFI can reach 70 % [Kolyasnikova, Buzhilova, 2023; Barber et al., 1997]. In the modern population, HFI is more common for women, predominantly elderly, which, at first glance, is explained by the general increase in women's life expectancy and the accumulation of various chronic pathologies in old age, including those related to metabolism. To examine the distribution of the HFI trait by sex and age, craniological material from representatives of traditional societies of farmers, hunters, nomadic and semi-nomadic pastoralists living in different climatic zones was studied. Craniological series were divided into three main groups: inhabitants of the Arctic and subarctic, temperate and continental climatic zones. A total of 1912 skulls were studied from the funds of the Research Institute and the Museum of Anthropology of Moscow State University [Alexe-eva et al., 1986]. As a result, using the example of 4 traditional groups from three climatic zones, it was shown that the sign of frontal internal hyperostosis is equally pronounced in both women and men, regardless of ethnic origin, place of residence and type of activity. The age-related increase in the frequency of hyperostosis, taking into account gender, does not give a clear trend in all groups obtained from the analysis of combined samples, which can be explained by the relatively small number of HFI observations in individual subgroups. The pattern of distribution of the trait of frontal internal hyperostosis in the modern population, where the trait is more common in older women, does not correlate with the distribution of HFI in the population adapted to environmental conditions. The results obtained suggest that in tradi-tional societies that have been selected for factors of conditions and lifestyle, regardless of their origin, the distribution of the trait of frontal internal hyperostosis will demonstrate a natural profile that is most adequate to their lifestyle and diet.

Publisher

Tyumen Scientific Center of the SB RAS

Reference27 articles.

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2. Alexeeva, T.I. (1986). Adaptive Reactions in Human Populations. Moscow: Izd-vo MGU. (Rus.).

3. Alexeeva, T.I., Yefimova, S.G., Erenbourg, R.B. (1986). Craniological and osteological collections of the In-stitute and Museum of Anthropology, MSU. Moscow: Izd-vo MGU. (Rus.).

4. Armelagos, G.J., Chrisman, O.D. (1988). Hyperostosis frontalis interna: A Nubian case. Am J Phys Anthropol, 76(1), 25–28. https://doi.org/10.1002/ajpa.1330760103

5. Barber, G., Watt, I., Rogers, J. (1997). A comparison of radiological and palaeopathological diagnostic crite-ria for hyperostosis frontalisinterna. Int. J. Osteoarchaeol, 7, 157–164.

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