Researchers compared male mice with zinc deficiency to healthy controls with normal zinc levels. The zinc-deficient mice developed high blood pressure and a corresponding decrease in urinary sodium excretion. The control group did not experience the same changes.
A small group of the zinc-deficient mice were fed a zinc-rich diet partway through the study. Once the animals’ zinc reached adequate levels, blood pressure began to drop and urinary sodium levels increased. “These significant findings demonstrate that enhanced renal [sodium] reabsorption plays a critical role in [zinc-deficiency]-induced hypertension,” the research team wrote.
“Understanding the specific mechanisms by which [zinc deficiency] contributes to [blood pressure] dysregulation may have an important effect on the treatment of hypertension in chronic disease settings,” the researchers added.
Source:
Clintoria R. Williams, Monisha Mistry, Aswathy Miriam Cheriyan, Jasmine M Williams, Meagan K Naraine, Carla L. Ellis, Rickta Mallick, Abinash C. Mistry, Jennifer L. Gooch, Benjamin Ko, Hui Cai, Robert S Hoover. Zinc Deficiency Induces Hypertension by Promoting Renal Sodium Reabsorption. American Journal of Physiology-Renal Physiology, 2019; DOI: 10.1152/ajprenal.00487.2018
