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.
MIT chemists determine molecular structure of SARS-CoV-2 protein

MIT chemists determine molecular structure of SARS-CoV-2 protein

Climate change is expected to increase mega-droughts, shows research

Climate change is expected to increase mega-droughts, shows research

Researchers identify new potential therapeutic targets for SARS-CoV-2 infection

Researchers identify new potential therapeutic targets for SARS-CoV-2 infection

Consumption of high doses of vitamin D supplements is unnecessary

Consumption of high doses of vitamin D supplements is unnecessary

New nanoparticles can destroy drug-resistant cancer cells

New nanoparticles can destroy drug-resistant cancer cells

Study shows cocaine use in mice leads to formation of synapses

Study shows cocaine use in mice leads to formation of synapses

Researchers discover new protocol to detect lipid production in microalgae

Researchers discover new protocol to detect lipid production in microalgae

Researchers demonstrate healing power of extracellular vesicles on a heart-on-a-chip

Researchers demonstrate healing power of extracellular vesicles on a heart-on-a-chip

Researchers assess heat-stress tolerance of different varieties of sweet potato

Researchers assess heat-stress tolerance of different varieties of sweet potato

Scientists discover new genes and brain circuits crucial for short-term memory

Scientists discover new genes and brain circuits crucial for short-term memory

Study reveals pathways essential for preventing crystal-induced kidney injury

Study reveals pathways essential for preventing crystal-induced kidney injury

Scientists uncover new parvovirus strategy for reaching the cell nucleus

Scientists uncover new parvovirus strategy for reaching the cell nucleus

Research finds air pollution particles in the placentas of women

Research finds air pollution particles in the placentas of women

Scientists use cryo-EM method to extract molecular data

Scientists use cryo-EM method to extract molecular data

Study helps explain how Treg cells prevent autoimmunity, dampen immune responses

Study helps explain how Treg cells prevent autoimmunity, dampen immune responses

Viruses provide a "coup de grace" when ocean algae are stressed and dying

Viruses provide a "coup de grace" when ocean algae are stressed and dying

Study highlights the role of brain astrocyte cells in Parkinson's disease pathology

Study highlights the role of brain astrocyte cells in Parkinson's disease pathology

Food additives prove to be efficient at controlling bacteria on tomatoes preharvest

Food additives prove to be efficient at controlling bacteria on tomatoes preharvest

Researchers discover link between defensive responses in plants and crop parasite

Researchers discover link between defensive responses in plants and crop parasite

Study shows different cell response offers more control to muscles

Study shows different cell response offers more control to muscles