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.
Study reveals new mechanism underlying organelle communication in brown fat cells

Study reveals new mechanism underlying organelle communication in brown fat cells

Scientists model human CMV-induced microcephaly using brain organoids

Scientists model human CMV-induced microcephaly using brain organoids

Cancer could potentially be treated with new immunotherapy approach, say researchers

Cancer could potentially be treated with new immunotherapy approach, say researchers

Study identifies brake on immune activity raising new possibilities for anticancer therapy

Study identifies brake on immune activity raising new possibilities for anticancer therapy

Quality of diet among young Americans remains poor

Quality of diet among young Americans remains poor

High-speed microscope records the passage of millisecond electrical pulses through neurons

High-speed microscope records the passage of millisecond electrical pulses through neurons

Cryo-electron microscopy helps visualize ball-and-chain inactivation of ion channels

Cryo-electron microscopy helps visualize ball-and-chain inactivation of ion channels

Drug from scorpion venom could offer hope for children with fetal alcohol spectrum disorder

Drug from scorpion venom could offer hope for children with fetal alcohol spectrum disorder

Listening to music for 30 minutes a day provides benefits after heart attack

Listening to music for 30 minutes a day provides benefits after heart attack

As coronavirus testing gears up, specialized swabs running out

As coronavirus testing gears up, specialized swabs running out

Antioxidant treatment in acute ischemic stroke could delay onset of clinically overt dementia

Antioxidant treatment in acute ischemic stroke could delay onset of clinically overt dementia

Vitamin D increases chances of regaining mobility after hip fracture

Vitamin D increases chances of regaining mobility after hip fracture

Tooth-enamel protein discovered in the eyes of people with dry AMD

Tooth-enamel protein discovered in the eyes of people with dry AMD

Aspergillus molds induce asthma by first attacking the lung's protective barrier

Aspergillus molds induce asthma by first attacking the lung's protective barrier

New imaging agent illuminates cancerous tumors and surrounding cells

New imaging agent illuminates cancerous tumors and surrounding cells

UVA researchers discover why obesity causes high blood pressure and potential ways to fix

UVA researchers discover why obesity causes high blood pressure and potential ways to fix

Infants consuming baby cereal less likely to have inadequate intake of key nutrients

Infants consuming baby cereal less likely to have inadequate intake of key nutrients

How effective is Gabapentin in alcohol use disorder?

How effective is Gabapentin in alcohol use disorder?

Automated CT-based biomarkers can better predict cardiovascular events than standard methods

Automated CT-based biomarkers can better predict cardiovascular events than standard methods

Yale discovery has implications for treatment of diabetes and non-alcoholic fatty liver disease

Yale discovery has implications for treatment of diabetes and non-alcoholic fatty liver disease