News tagged with calcium ions

Related topics: protein

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
popularity 4.9 / 5 (10) | comments 4 | with audio podcast

Channeling into cell control

A research team from the RIKEN Brain Science Institute in Wako, Japan, has visualized and accurately modeled the molecular changes that open and close the internal membrane channels for calcium ions within ...

Jan 20, 2012
popularity 4.4 / 5 (5) | comments 0

A faster vessel for charting the brain

Princeton University researchers have created "souped up" versions of the calcium-sensitive proteins that for the past decade or so have given scientists an unparalleled view and understanding of brain-cell ...

Jul 25, 2013
popularity 5 / 5 (4) | comments 0 | with audio podcast

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 ...

Jan 17, 2014
popularity 4.8 / 5 (4) | comments 0 | with audio podcast

New clues to molecular understanding of autism

The first transgenic mouse model of a rare and severe type of autism called Timothy Syndrome is improving the scientific understanding of autism spectrum disorder in general and may help researchers design more targeted interventions ...

Sep 12, 2011
popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Arrhythmia culprit caught in action

Using powerful X-rays, University of British Columbia researchers have reconstructed a crime scene too small for any microscope to observe – and caught the culprit of arrhythmia in action.

Feb 17, 2013
popularity 4.7 / 5 (3) | comments 0

Visualizing a memory trace

In mammals, a neural pathway called the cortico-basal ganglia circuit is thought to play an important role in the choice of behaviors. However, where and how behavioral programs are written, stored and read ...

Jul 12, 2013
popularity 4.7 / 5 (3) | comments 0 | with audio podcast

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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