Neuroscience

New study sheds light into origins of neurodegenerative disease

New research has shed light on the origins of spinocerebellar ataxia type 7 (SCA7) and demonstrates effective new therapeutic pathways for SCA7 and the more than 40 other types of spinocerebellar ataxia. The study, which ...

Diseases, Conditions, Syndromes

New clues to the link between ALS and type 2 diabetes

Patients with ALS (amyotrophic lateral sclerosis) often suffer from type 2 diabetes. This phenomenon has long remained mechanistically enigmatic. Now, researchers at Karolinska Institutet in Sweden have identified a molecular ...

Oncology & Cancer

AI helps find signs of heart disease on lung cancer screens

Artificial intelligence (AI) provides an automated and accurate tool to measure a common marker of heart disease in patients getting chest CT scans for lung cancer screening, according to a study presented today at the annual ...

Medical research

New treatment could ease the passage of kidney stones

Every year, more than half a million Americans visit the emergency room for kidney stone problems. In most cases, the stones eventually pass out of the body on their own, but the process can be excruciatingly painful.

Parkinson's & Movement disorders

Defining a new approach to treating Parkinson's disease

An international research team including scientists from the University of Cologne have identified a new mechanism for the development of Parkinson's disease, which could prove to be the starting point for the development ...

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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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