Diseases, Conditions, Syndromes
Seeking COVID cures: Scientists find promising first step in antiviral treatment
Researchers from Cornell University have identified a possible target for antiviral treatment for COVID-19.
Apr 07, 2020
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News tagged with calcium ions
Neuroscience
How neurons talk to each other
Neurons are connected to each other through synapses, sites where signals are transmitted in the form of chemical messengers. Reinhard Jahn, Director at the Max Planck Institute for Biophysical Chemistry in Göttingen, has ...
Sep 22, 2016
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Medical research
Research challenges decades-old understanding of how we hear sound
Researchers at Linköping University, Sweden, have made several discoveries on the functioning mechanisms of the inner hair cells of the ear, which convert sounds into nerve signals that are processed in the brain. The results, ...
May 10, 2021
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Cardiology
Widely used blood pressure drugs might put heart at risk
Drugs based on a molecule called dihydropyridine are commonly prescribed by doctors to treat high blood pressure and angina, a chest pain caused by reduced blood flow to the heart. However, there's a chance that these same ...
Oct 11, 2019
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Medical research
A new pathway for an anti-aging drug
In 1972, Easter Island, called Rapa Nui, famous for its moai statues, offered a new wonder: the discovery of the drug rapamycin.
May 23, 2019
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Immunology
The immune system: Knocked off balance
Instead of protecting us, the immune system can sometimes go awry, as in the case of autoimmune diseases and allergies. A Ludwig-Maximilian-Universitaet (LMU) in Munich team has dissected how mast cells regulate their calcium ...
Jul 23, 2020
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Neuroscience
Cracking brain memory code
(Medical Xpress) -- Despite a century of research, memory encoding in the brain has remained mysterious. Neuronal synaptic connection strengths are involved, but synaptic components are short-lived while memories last lifetimes. ...
Mar 09, 2012
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Medical research
Scientists shed new light on the role of calcium in learning and memory
While calcium's importance for our bones and teeth is well known, its role in neurons—in particular, its effects on processes such as learning and memory—has been less well defined.
Aug 26, 2016
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Neuroscience
Amplifying communication between neurons
Neurons send signals to each other across small junctions called synapses. Some of these signals involve the flow of potassium, calcium and sodium ions through channel proteins that are embedded within the membranes of neurons. ...
Jan 17, 2014
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Neuroscience
Research team may have observed building blocks of memories in the brain
(Medical Xpress)—A team of researchers working at Aix-Marseille University in France has observed what they believe are the building blocks of memories in a mouse brain. In their paper published in the journal Science, ...
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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