News tagged with magnesium

Magnesium cuts diabetes risk

Getting enough magnesium in the diet may reduce the risk of diabetes, especially for those who already show signs of heading that way.

Oct 20, 2014
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Magnesium may protect against hip fractures

Drinking water with a relatively high concentration of magnesium protects against hip fractures, according to results of a study from the Norwegian Institute of Public Health.

Feb 18, 2014
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Dietary supplement use among older persons

Many older people are ingesting too much magnesium and vitamin E in the form of dietary supplements. This was discovered by scientists of the Helmholtz Zentrum München in a population-based study; their results have been ...

Dec 06, 2013
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US warns of mold in recalled specialty drugs

The U.S. Food and Drug Administration warned doctors and hospital managers Monday about a nationwide recall of all drugs made by a New Jersey compounding pharmacy because of possible mold contamination.

Mar 18, 2013
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New drug approved for colonoscopy preparation

(HealthDay) -- Prepopik (sodium picosulfate, magnesium oxide and citric acid) has been approved by the U.S. Food and Drug Administration for adults preparing for a colonoscopy, a diagnostic procedure to inspect the colon's ...

Jul 17, 2012
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UC creates stronger, longer lasting medical implants

University of Cincinnati researchers have discovered that laser shock peening has an amazing effect when applied to magnesium alloys. When used on a magnesium alloy, LSP makes the alloy stronger and better ...

Apr 13, 2012
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Magnesium

Magnesium ( /mæɡˈniːziəm/ mag-nee-zee-əm) is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust, where it constitutes about 2% by mass, and ninth in the known universe as a whole. This abundance of magnesium is related to the fact that it is easily built up in supernova stars from a sequential addition of three helium nuclei to carbon (which in turn is made from three helium nuclei). Due to magnesium ion's high solubility in water, it is the third most abundant element dissolved in seawater.

Magnesium is the 11th most abundant element by mass in the human body; its ions are essential to all living cells, where they play a major role in manipulating important biological polyphosphate compounds like ATP, DNA, and RNA. Hundreds of enzymes thus require magnesium ions to function. Magnesium is also the metallic ion at the center of chlorophyll, and is thus a common additive to fertilizers. Magnesium compounds are used medicinally as common laxatives, antacids (e.g., milk of magnesia), and in a number of situations where stabilization of abnormal nerve excitation and blood vessel spasm is required (e.g., to treat eclampsia). Magnesium ions are sour to the taste, and in low concentrations help to impart a natural tartness to fresh mineral waters.

The free element (metal) is not found naturally on Earth, as it is highly reactive (though once produced, it is coated in a thin layer of oxide [see passivation], which partly masks this reactivity). The free metal burns with a characteristic brilliant white light, making it a useful ingredient in flares. The metal is now mainly obtained by electrolysis of magnesium salts obtained from brine. Commercially, the chief use for the metal is as an alloying agent to make aluminium-magnesium alloys, sometimes called "magnalium" or "magnelium". Since magnesium is less dense than aluminium, these alloys are prized for their relative lightness and strength.

This text uses material from Wikipedia licensed under CC BY-SA