Structural organization of the thyroid gland at men of the radical and not radical nationality of the Republic of Sakha (Yakutia) during the winter period of year

In work changes of the morphofunctional indicators of structural components of a thyroid gland at men of an aboriginal and not aboriginal population of Yakutia during the winter period of year are revealed. It was estimated that the outer and inner diameter of the follicle and the area of ​​the colloid of the thyroid gland in non-indigenous residents were higher than those in indigenous men, both in summer and winter seasons. The height of the thyroid epithelium, thyrocyte area, the thyrocite core area, as well as nuclear-cytoplasmic thyroid index in the group of non-indigenous residents were less than those of the indigenous people in summer, but in winter the opposite trend was observed. It was revealed that in the group of indigenous men transition of the follicular apparatus of the thyroid gland into a state of increased activity in the winter was expressed to a lesser extent than with the non-indigenous groups.