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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.
Andor Zyla sCMOS Camera enables instantaneous imaging of neuronal activity across whole organism for the first time

Andor Zyla sCMOS Camera enables instantaneous imaging of neuronal activity across whole organism for the first time

The speed, resolution and sensitivity of the Andor Zyla sCMOS camera has allowed the Vaziri research group in Vienna, Austria, to simultaneously image neuronal activity across an entire organism for the first time. [More]
People living beside the sea have higher vitamin D levels

People living beside the sea have higher vitamin D levels

People living close to the coast in England have higher vitamin D levels than inland dwellers, according to a new study published in the journal Environment International. [More]
IOM report says white potatoes should be allowed under WIC Nutrition Program

IOM report says white potatoes should be allowed under WIC Nutrition Program

The U.S. Department of Agriculture should allow white potatoes as a vegetable eligible for purchase with vouchers issued by the Special Supplemental Nutrition Program for Woman, Infants, and Children (WIC), says a new report. [More]
Pancreatic cancer cells know a way to sidestep chemotherapy, reveal Fox Chase researchers

Pancreatic cancer cells know a way to sidestep chemotherapy, reveal Fox Chase researchers

Pancreatic cancer is one of the deadliest forms of the disease. The American Cancer Society's most recent estimates for 2014 show that over 46,000 people will be diagnosed with pancreatic cancer and more than 39,000 will die from it. Now, research led by Timothy J. Yen, PhD, Professor at Fox Chase Cancer Center, reveals that one reason this deadly form of cancer can be so challenging to treat is because its cells have found a way to sidestep chemotherapy. [More]
AP39 compound could help lower heart rate, blood pressure, and blood vessel stiffness

AP39 compound could help lower heart rate, blood pressure, and blood vessel stiffness

A gas that gives rotten eggs their distinctive odour could one day form the basis of new cardiovascular therapies. [More]
Pollinator decline could increase risk of malnutrition, disease

Pollinator decline could increase risk of malnutrition, disease

A new study shows that more than half the people in some developing countries could become newly at risk for malnutrition if crop-pollinating animals -- like bees -- continue to decline. [More]
Investigators make medical breakthrough in repairing tracheal damage

Investigators make medical breakthrough in repairing tracheal damage

Investigators at The Feinstein Institute for Medical Research have made a medical breakthrough using 3D printing on a MakerBot Replicator 2X Experimental 3D Printer to create cartilage designed for tracheal repair or replacement. [More]
Study finds relationship between menopausal symptoms, bone health in postmenopausal women

Study finds relationship between menopausal symptoms, bone health in postmenopausal women

The first large prospective cohort study to examine the relationship between menopausal symptoms and bone health in postmenopausal women has found that those who experience moderate to severe hot flashes and night sweats during menopause tend to have lower bone mineral density and higher rates of hip fracture than peers with no menopausal symptoms. [More]
Microscopic spheres of calcium phosphate linked to AMD development

Microscopic spheres of calcium phosphate linked to AMD development

Microscopic spheres of calcium phosphate have been linked to the development of age-related macular degeneration (AMD), a major cause of blindness, by UCL-led research. [More]
Understanding heart mutations that cause sudden cardiac arrest

Understanding heart mutations that cause sudden cardiac arrest

New biosciences research at the University of Kent could point the way to greater understanding of the heart mutations that cause sudden cardiac arrest. [More]
Tiny lumps of calcium phosphate may trigger age-related macular degeneration

Tiny lumps of calcium phosphate may trigger age-related macular degeneration

New research from scientists at the University of Maryland School of Medicine has found that tiny lumps of calcium phosphate may be an important triggering factor for age-related macular degeneration (AMD), a degenerative eye disease that can cause severe vision loss and blindness. [More]
Researchers examine how terpenes can inhibit growth of liver cancer cells

Researchers examine how terpenes can inhibit growth of liver cancer cells

As main component of essential oils, terpenes can inhibit the growth of different cancer cells. Researchers from the Ruhr-University Bochum headed by Prof Dr Dr Dr Hanns Hatt have analysed this process in liver cancer cells in detail. [More]
Tree nut consumption linked to better nutrient adequacy, diet quality in adults

Tree nut consumption linked to better nutrient adequacy, diet quality in adults

A new study, published this week in the open access journal Nutrients, compares the nutrient adequacy and diet quality of those who consume tree nuts (almonds, Brazil nuts, cashews, hazelnuts, macadamias, pecans, pine nuts, pistachios and walnuts), and non-tree nut consumers in a nationally representative population. [More]
Iron accumulation in human tissues may contribute to the aging process

Iron accumulation in human tissues may contribute to the aging process

It's been known for decades that some metals, including iron, accumulate in human tissues during aging and that toxic levels of iron have been linked to neurologic diseases, such as Parkinson's. Common belief has held that iron accumulation happens as a result of the aging process. [More]
Endocrine Society issues guideline on prescribing drugs to manage obesity, promote weight loss

Endocrine Society issues guideline on prescribing drugs to manage obesity, promote weight loss

The Endocrine Society today issued a Clinical Practice Guideline (CPG) on strategies for prescribing drugs to manage obesity and promote weight loss. [More]
Endocrinology Network offers up-to-date coverage of SGLT2 inhibitors

Endocrinology Network offers up-to-date coverage of SGLT2 inhibitors

UBM Medica US announces that Endocrinology Network, a leading online community for endocrinologists and other clinicians who treat patients with T2DM offers comprehensive and up-to-date coverage of the sodium glucose cotransporter 2 (SGLT2) inhibitors. [More]
Potassium salts in plant foods improve bone health

Potassium salts in plant foods improve bone health

Latest research from the University of Surrey has found that the potassium salts (bicarbonate and citrate) plentiful in fruit and vegetables, play an important part in improving bone health. For the first time, the results also showed that these potassium salts reduce bone resorption, the process by which bone is broken down, therefore increasing their strength. [More]
Study examines impact of removing chocolate milk from Saskatoon elementary schools

Study examines impact of removing chocolate milk from Saskatoon elementary schools

Researchers from the College of Pharmacy and Nutrition, University of Saskatchewan measured milk consumption (plain milk and flavoured milk) by children in a sample of Saskatoon elementary schools. This is the first study in a Canadian elementary school population to investigate the impact of removing chocolate milk from schools. [More]
Life satisfaction associated with higher bone density in older women

Life satisfaction associated with higher bone density in older women

Women aged 60-70 who are satisfied with their lives have a higher bone density and they suffer from osteoporosis less frequently than their unsatisfied peers, according to a recent study completed at the University of Eastern Finland. [More]
Review shows that fish compound can help combat cardiovascular disease

Review shows that fish compound can help combat cardiovascular disease

A major international review of a peptide originally found in fish that could be used in the battle against cardiovascular disease has been published. [More]
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