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.
Higher vitamin D levels linked to lower cancer risk, study suggests

Higher vitamin D levels linked to lower cancer risk, study suggests

Research helps elucidate mechanisms behind low-level laser therapy in treating neuropathic pain

Research helps elucidate mechanisms behind low-level laser therapy in treating neuropathic pain

New high-speed computational software could reveal deeper insights into neuronal function

New high-speed computational software could reveal deeper insights into neuronal function

UAlberta researchers discover potential new target for treatment of multiple sclerosis

UAlberta researchers discover potential new target for treatment of multiple sclerosis

Genome sequencing approach opens door to therapy options for rare, neglected cancers

Genome sequencing approach opens door to therapy options for rare, neglected cancers

Discovery about retinal zinc may show new way to protect, regenerate optic nerve in glaucoma patients

Discovery about retinal zinc may show new way to protect, regenerate optic nerve in glaucoma patients

South Asian women could be at greater risk of developing osteoporosis in later life, study finds

South Asian women could be at greater risk of developing osteoporosis in later life, study finds

Duke scientists use mathematical tools to track how microbial evolution unfolded

Duke scientists use mathematical tools to track how microbial evolution unfolded

Medications, PCI equally beneficial for treating complete blockage in heart's arteries

Medications, PCI equally beneficial for treating complete blockage in heart's arteries

MPFI researchers develop new tool to study CaMKII kinetics in learning and memory

MPFI researchers develop new tool to study CaMKII kinetics in learning and memory

Neuroscientists elucidate how serotonin helps to deal with unfamiliar changing environment

Neuroscientists elucidate how serotonin helps to deal with unfamiliar changing environment

Study provides new insights into biological mechanisms underpinning type 2 diabetes pathology

Study provides new insights into biological mechanisms underpinning type 2 diabetes pathology

Hormone replacement therapy linked to lower risk of atherosclerosis and death in women

Hormone replacement therapy linked to lower risk of atherosclerosis and death in women

Researcher finds lack of evidence behind dietary recommendations to lower children's blood lead levels

Researcher finds lack of evidence behind dietary recommendations to lower children's blood lead levels

Researchers show how composition of mitochondrial calcium portal differs based on organs

Researchers show how composition of mitochondrial calcium portal differs based on organs

TSRI scientists discover how key protein establishes proper vision

TSRI scientists discover how key protein establishes proper vision

Study finds 78% postoperative stroke reduction with ‘no-touch’ beating heart bypass surgery

Study finds 78% postoperative stroke reduction with ‘no-touch’ beating heart bypass surgery

Study finds biochemical pathway that triggers regrowth of breast cancer stem cells after chemotherapy

Study finds biochemical pathway that triggers regrowth of breast cancer stem cells after chemotherapy

Estrogen therapy can lead to healthier teeth and gums in postmenopausal women, study suggests

Estrogen therapy can lead to healthier teeth and gums in postmenopausal women, study suggests

Scientists identify how imbalance of calcium in mitochondria may contribute to Alzheimer's disease

Scientists identify how imbalance of calcium in mitochondria may contribute to Alzheimer's disease