THE LEVEL OF VITAMIN D IN PEOPLE OLDER THAN 50 YEARS RESIDING IN THE REPUBLIC OF BASHKORTOSTAN IN THE PERIOD OF MAXIMUM INSOLATION

Abstract

Aim. To study the vitamin D levels in the period of maximal sun exposure in individuals older than 50 years residing in the Republic of Bashkortostan, to compare them with the levels during the period of the minimum insolation. Materials and methods. In the period of high insolation in 175 people aged over 50 years residing in the city (Ufa) and rural areas of the Republic of Bashkortostan, we investigated the levels of 25 (OH) D and parathyroid hormone (PTH) by the indirect ELISA. Results. We show that the senior age groups of the population of the Republic of Bashkortostan even in the period of the maximum insolation are characterized by the high frequency of hypovitaminosis and deficiency of vitamin D. The level of vitamin D is higher in the period of the maximum insolation, and in rural areas, this increase is more prominent. Levels of vitamin D and PTH in the period of the maximum insolation do not depend on male or female sex, and do not differ in rural and urban population. Conclusions. In general, our results show that the problem of deficiency of vitamin D for senior citizens remains of high relevance even in the period of the maximum insolation.