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                      Zinc Deficiency Linked to Hypertension

                      Published by Life Extension

                      Foods with Zinc mineral on a wooden table.

                      An article appearing on January 16, 2019 in the American Journal of Physiology–Renal Physiology  reported that deficient zinc levels may contribute to high blood pressure by promoting sodium re-absorption by the kidneys.

                      Zinc deficiency is common in many chronic diseases and can worsen hypertension. However, it had not been known whether zinc deficiency alone could impact blood pressure.

                      In the current study, the researchers fed 20 mice diets that contained adequate amounts of zinc for two weeks, after which 15 animals were given zinc deficient diets for five to six weeks. Five of these deficient animals were subsequently returned to diets that provided adequate zinc. An additional group of deficient mice was injected with hydrochlorothiazide, a sodium chloride cotransporter (NCC) inhibitor. (The sodium chloride cotransporter pathway is involved in blood pressure control. In the kidneys, it extracts sodium and other ions from urine so that they can be reabsorbed into the blood.)

                      It was discovered that zinc deficiency promoted episodes of high blood pressure accompanied by reduced excretion of sodium ions by the kidneys. Animals that had adequate zinc throughout the study failed to experience these changes. Additionally, deficient animals whose dietary zinc was replenished began to experience a reduction in blood pressure and an increase in urinary sodium levels. Hydrochlorothiazide also reversed increases in blood pressure and promoted the excretion of sodium in the urine, thereby linking the NCC to zinc-mediated blood pressure regulation.

                      “This study is the first to link dysregulated renal sodium ion transport to zinc deficiency-induced hypertension,” the authors conclude. “Furthermore, NCC represents a novel mechanism by which zinc regulates blood pressure. Understanding the specific mechanisms by which zinc deficiency contributes to blood pressure dysregulation may have an important impact on the treatment of hypertension in chronic disease settings.”

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                      Life Extension
                      Life Extension
                      LIFE EXTENSION The Life Extension Health News team delivers accurate information about vitamins, nutrition and aging. Our stories rely on multiple, authoritative sources and experts. We keep our content accurate and trustworthy, by submitting it to a medical reviewer. Life Extensionists are people who believe in taking advantage of documented scientific therapies to help maintain optimal health and slow aging. The medical literature contains thousands of references on the use of antioxidant vitamins, weight loss supplements, and hormones that have been shown to improve the quality and quantity of life. Life Extensionists attempt to take advantage of this scientific information to enhance their changes of living longer in good health. This article is posted by permission of Life Extension. https://www.lifeextension.com/

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