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.
Scientists uncover thousands of human genes that are expressed differently in the two sexes

Scientists uncover thousands of human genes that are expressed differently in the two sexes

New prognostic tool accurately predicts recurrence of parathyroid cancer

New prognostic tool accurately predicts recurrence of parathyroid cancer

Consuming less sodium not linked to lower blood pressure, study finds

Consuming less sodium not linked to lower blood pressure, study finds

Consumers of frozen fruits and vegetables have greater intakes of key nutrients, study reveals

Consumers of frozen fruits and vegetables have greater intakes of key nutrients, study reveals

Synchronized voltage rhythms in SCN could play role in maintaining the body’s circadian clock

Synchronized voltage rhythms in SCN could play role in maintaining the body’s circadian clock

Researchers discover new cellular mechanism that may cause multiple sclerosis

Researchers discover new cellular mechanism that may cause multiple sclerosis

Women at highest genetic risk for fracture benefit most from hormone therapy, study finds

Women at highest genetic risk for fracture benefit most from hormone therapy, study finds

Systematic Review reveals safe levels of caffeine intake

Systematic Review reveals safe levels of caffeine intake

Study shows magnesium supplements can reduce chances of breaking a bone

Study shows magnesium supplements can reduce chances of breaking a bone

Atomic resolution structure of key molecule may contribute to drug discovery for devastating conditions

Atomic resolution structure of key molecule may contribute to drug discovery for devastating conditions

TSRI study could lead to personalized treatments for alcohol dependence

TSRI study could lead to personalized treatments for alcohol dependence

Investigational device aims to minimize risk of cerebral damage during TAVR

Investigational device aims to minimize risk of cerebral damage during TAVR

Study identifies potential link between genes and treatment response in children with CAE

Study identifies potential link between genes and treatment response in children with CAE

Researchers identify genetic cause of rare neurological movement disorder

Researchers identify genetic cause of rare neurological movement disorder

Researchers explore how sea urchins take up calcium to build hard spines

Researchers explore how sea urchins take up calcium to build hard spines

Sodium citrate nasal spray could offer temporary improvement in ability to smell

Sodium citrate nasal spray could offer temporary improvement in ability to smell

BioDirection's TBI detection system shows potential to reduce unnecessary CT scans

BioDirection's TBI detection system shows potential to reduce unnecessary CT scans

Amgen, UCB present romosozumab Phase 2 results at ENDO 2017

Amgen, UCB present romosozumab Phase 2 results at ENDO 2017

Cow's milk decreases the body's ability to absorb oral thyroid hormone medication

Cow's milk decreases the body's ability to absorb oral thyroid hormone medication

Five simple tests provide more accurate assessment of heart-disease risk

Five simple tests provide more accurate assessment of heart-disease risk