News tagged with calcium

Related topics: protein · vitamin d

Calcium controls sleep duration in mice

University of Tokyo and RIKEN researchers have identified seven genes responsible for causing mice to stay awake or fall asleep based on a theoretical model of sleep and on experiments using 21 different genetically-modified ...

Mar 17, 2016
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Dementia incidence higher than CHD in very elderly

(HealthDay)—For adults aged 80 years or older, the incidence of dementia is greater than that of coronary heart disease (CHD), according to a study published in the March 8 issue of the Journal of the American College of ...

Mar 02, 2016
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Calcium

Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.

Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals.

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