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.
A member of light-sensitive protein family plays role in adjusting skin color

A member of light-sensitive protein family plays role in adjusting skin color

New drug could open up avenues for treatment of neonatal epilepsy

New drug could open up avenues for treatment of neonatal epilepsy

Fruit fly study shows role of unexplored neural circuit in modulating memory strength

Fruit fly study shows role of unexplored neural circuit in modulating memory strength

Lifestyle risk factors account for 27% of all cancer cases in Brazil

Lifestyle risk factors account for 27% of all cancer cases in Brazil

Charcoal-based toothpaste comes with 'real risks'

Charcoal-based toothpaste comes with 'real risks'

Scientists decipher transcriptome of drumstick tree by RNA sequencing

Scientists decipher transcriptome of drumstick tree by RNA sequencing

Researchers study the impact of and treatment for aggrecan deficiency

Researchers study the impact of and treatment for aggrecan deficiency

The endocannabinoid system and skin conditions

The endocannabinoid system and skin conditions

Vegans are often deficient in these four nutrients

Vegans are often deficient in these four nutrients

Study examines how our brain generates consciousness and loses it during anesthesia

Study examines how our brain generates consciousness and loses it during anesthesia

Study provides potential new targets for treating epilepsy

Study provides potential new targets for treating epilepsy

Breakthrough study may lead to development of new, effective drugs for epilepsy

Breakthrough study may lead to development of new, effective drugs for epilepsy

Peppermint oil helps people with non-cardiac chest pain and difficulty swallowing

Peppermint oil helps people with non-cardiac chest pain and difficulty swallowing

New discovery could provide opportunity to improve blood glucose control

New discovery could provide opportunity to improve blood glucose control

Coastal trenches, inland volcanoes remove 19% more CO2 than previously thought

Coastal trenches, inland volcanoes remove 19% more CO2 than previously thought

Thiazide use linked with reduced risk of low energy fractures in people with Alzheimer's

Thiazide use linked with reduced risk of low energy fractures in people with Alzheimer's

Study tracks Pennsylvania's oil and gas waste-disposal practices

Study tracks Pennsylvania's oil and gas waste-disposal practices

More care is needed for patients after kidney transplantations, reports research

More care is needed for patients after kidney transplantations, reports research

WiFi may interact with signaling pathways in the brain, causing irreversible damage

WiFi may interact with signaling pathways in the brain, causing irreversible damage

New bandage-like biosensor collects and analyzes sweat

New bandage-like biosensor collects and analyzes sweat