Endocrine Abstracts

Sufficient vitamin D supply is essential for general health. The total 25-hydoxy-vitamin-D (t-25OHD) level refers to the vitamin D supply and can be measured with various methods. Since these methods are not independent of the serum matrix, differences can be obtained among vitamin D levels measured with different methods. Our aim was to study the vitamin D in healthy blood donors, taking also into consideration the use of oral contraceptives (OC).Method...

The majority of circulating total 25-hydroxi-D-vitamin (t-25OHD) is bound to proteins – 90% to vitamin D binding protein (DBP) belonging to the alfa-2-globulin (a-2gl) fraction and 10% to albumin (ALB). Nowadays the t-25OHD level is the most accepted marker of vitamin D supply in physiological states. Our aim was to investigate the t-25OHD concentration in clinical conditions with low albumin levels.Methods: Seventy-three patients (39 men, 34 women;...