Calcium News and Research

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Calcium, the most abundant mineral in the body, is found in some foods, added to others, available as a dietary supplement, and present in some medicines (such as antacids). Calcium is required for muscle contraction, blood vessel expansion and contraction, secretion of hormones and enzymes, and transmitting impulses throughout the nervous system. The body strives to maintain constant concentrations of calcium in blood, muscle, and intercellular fluids, though less than <1% of total body calcium is needed to support these functions.

The remaining 99% of the body's calcium supply is stored in the bones and teeth where it supports their structure. Bone itself undergoes continuous remodeling, with constant resorption and deposition of calcium into new bone. The balance between bone resorption and deposition changes with age. Bone formation exceeds resorption in growing children, whereas in early and middle adulthood both processes are relatively equal. In aging adults, particularly among postmenopausal women, bone breakdown exceeds formation, resulting in bone loss that increases the risk of osteoporosis over time.
Molecular basis of rare neurodevelopmental condition reveals possible treatment

Molecular basis of rare neurodevelopmental condition reveals possible treatment

Novel protein sensor controls the pathway of fat and sugar conversion in humans

Novel protein sensor controls the pathway of fat and sugar conversion in humans

Researchers use CRISPR/Cas9 to search for Alzheimer's-related genes

Researchers use CRISPR/Cas9 to search for Alzheimer's-related genes

Biophysicists uncover new features of molecular elevator

Biophysicists uncover new features of molecular elevator

Synapses of the human nervous system

Synapses of the human nervous system

New method images proteins in 3D with nanoscale resolution

New method images proteins in 3D with nanoscale resolution

Novel high-speed microscope successfully records neural activities

Novel high-speed microscope successfully records neural activities

Regulating ion flow using a ball-and-chain mechanism

Regulating ion flow using a ball-and-chain mechanism