[Morphofunctional characteristics of the thyroid and a change in the level of thyroid hormones in the blood from the internal use of boron-containing waters].

It has been established that intake of waters identical by Br concentrations (250 mg/l) but different by an ion-salt base leads to various structural changes of the thyroid at the tissue, cellular and subcellular levels. Artificial Br-containing water induces more pronounced shifts correlating with T3 and T4, blood concentrations. The ion-salt base was found essential in the mechanism of action of Br-containing water.