Association between zinc deficiency and hypertension. Free Technical Library News

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Link between zinc deficiency and hypertension

26.01.2019

Zinc deficiency can cause high blood pressure (hypertension) by changing the way the kidneys regulate sodium.

Zinc deficiency is common in people with chronic conditions such as type 2 diabetes and chronic kidney disease. People with low zinc levels are also at an increased risk of hypertension. The way the kidneys either excrete sodium into the urine or reabsorb it into the body—especially through a pathway called the sodium chloride cotransporter (SCH)—also plays a role in blood pressure control. Less sodium in the urine usually corresponds to higher blood pressure. Recent studies have shown that zinc may help regulate proteins that in turn regulate CCH, but a direct link between zinc deficiency-induced hypertension has not been investigated.

The researchers compared zinc-deficient male mice with healthy mice with normal zinc levels. Mice deficient in zinc 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 zinc-deficient mice received a zinc-rich diet throughout the study. Once the zinc levels in the animals reached adequate levels, blood pressure began to fall and urine sodium levels rose.

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The lightest isotope of magnesium 28.12.2021

In collaboration with an international team of researchers, Michigan State University has created the world's lightest version of magnesium.

The record-breaking isotope magnesium-18 is produced at the National Superconducting Cyclone Laboratory (NSCL) and is so unstable that it decays before scientists can measure it directly or detect it in nature. Therefore, using a particle accelerator, physicists created it in the laboratory in an attempt to understand how atoms are arranged and where the elements of the universe come from. This will help predict what happens in extreme space environments that may never be directly reproduced or measured from Earth.

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Scientists only characterized the clear signs of a new isotope. Magnesium-18 first ejected two protons from its core to become neon-16, which then emitted two more protons to become oxygen-14. By analyzing the protons and oxygen that left the target, the team determined the properties of magnesium-18.

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