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 suggests that eating onions might help prevent bone loss and osteoporosis

Besides adding flavor to food, onions also may be good for your bones. Researchers at the University of Bern in Switzerland have identified a compound in the popular vegetable that appears to decrease bone loss in laboratory studies using rat bone cells.

5 Apr 2005

Mothers may cause girls to be picky eaters

Researchers at Appalachian State University have found that mothers who consumed more fruits and vegetables are less likely to pressure their daughters to eat and their daughters are less picky, eat more fruits and vegetables, eat fewer fats and sweets and are less likely to be overweight.

4 Apr 2005

$Why do black South Africans have a low hip fracture rate despite low calcium intake?$

Why do black South Africans have a low hip fracture rate despite low calcium intake?

After Nelson Mandela was released from prison February 11, 1990, all children born in the great Johannesburg area were enrolled in a 20-year longitudinal study. Officially known as “Birth to Twenty,” the study and its 3,273 youth, are colloquially referred to as “Mandela’s Children.” It’s the largest and longest running study of child and adolescent health and development in Africa, and one of the few large-scale longitudinal studies in the world.

3 Apr 2005

Study of Anoxia could yield better anesthetics, stroke/heart attack recovery

For a human, mere minutes without oxygen (called anoxia) resulting from cardiac arrest, cerebral stroke or being trapped under water can lead to profound tissue damage and even death. However a Western painted turtle can survive anoxia for months without apparent tissue damage. Why, and how?

3 Apr 2005

Could NAADP/cholecystokinin-combo attack fat from inside and out?

One traditional approach to pharmaceutical design uses so-called “first messengers” – hormones, other natural facilitators or synthetic products – to initiate various cellular cascades for the desired physiological effect. To date, despite concerted efforts at all levels of research, this approach has failed to develop a truly successful obesity drug to address this major global health problem.

3 Apr 2005

Statins, other cholesterol-depleting agents, may disrupt hypertension from developing

Cholesterol-lowering agents, such as the widely-prescribed statin drugs, and cholesterol-blocking agents may prove to be “novel therapeutic agents to modify cellular calcium that contributes to the development of pulmonary hypertension,” according Hemal H. Patel who lead a multidisciplinary team of researchers at the University of California, San Diego (UCSD).

3 Apr 2005

The facts on prenatal care

The nine months of pregnancy come complete with a rich folklore, from guessing at a baby’s sex by the expectant mother’s shape to home remedies for morning sickness. Along with these ageless stories and advice, women also face a variety of recommendations from the modern world of medicine on how best to take care of themselves during pregnancy.

3 Apr 2005

Discovery could lead to new drug targets for heart disease

Mice with glowing green hearts have yielded the latest clue in the search for molecules involved in structural heart disease. Vanderbilt University Medical Center investigators found that blocking the activity of a single protein, called CaM kinase, in the mouse heart protects against the damaging effects of a heart attack.

30 Mar 2005

Teenage girls need more milk

In an attempt combat brittle bone disease in later life, teenage girls in the UK are being encouraged to drink milk and to eat more yoghurt and cheese.

30 Mar 2005

Avoiding risks of skin cancer from ultraviolet radiation (UVR)

Cancer Research UK has launched the SunSmart Campaign for 2005 and NRPB strongly supports the health promotion messages in the campaign.

30 Mar 2005

Important link between kidney damage and cardiac problems

Scientists have identified an important link between kidney damage and cardiac problems, creating new possibilities for treating the primary cause of death in kidney disease patients.

29 Mar 2005

Researchers have identified the proteins that allow specific brain cells to "change channels"

Johns Hopkins researchers have identified the proteins that allow specific brain cells to "change channels," a rare ability that tweaks what can come into the cell. The findings, described in the March 24 issue of Neuron, might let researchers harness the process, perhaps one day using it to protect cells that die in Lou Gehrig's disease.

28 Mar 2005

Promising results reported for HIV patients suffering from facial wasting

Physicians from leading plastic surgery and dermatology practices report positive results from HIV patients participating in a clinical trial of Radiesse synthetic injectable implant on facial wasting. The trial is intended to demonstrate the safety and effectiveness of this widely used tissue augmentation therapy as a treatment for the facial changes that socially stigmatize many HIV-infected patients.

23 Mar 2005

Calcium crucial to benefits of osteoporosis drugs

Although an increasing number of people are taking powerful new prescription drugs to treat osteoporosis, chances are the majority of patients are not getting the greatest effect from these medicines because they do not have an adequate calcium and vitamin D intake, according to a paper published in the March 2005 issue of The Journal of Women's Health.

23 Mar 2005

Sports drinks can damage teeth

While sports and energy drinks help athletes re-hydrate after a long workout, if consumed on a regular basis they can damage teeth.

21 Mar 2005

Questions about validity of HOPE TOO vitamin E study

A study published in the March 16 issue of Journal of the American Medical Association (JAMA) suggesting that a "daily-dose" of vitamin E (400 international units) among high-risk (chronically ill) cardiovascular patient populations is associated with a greater risk of heart failure is being challenged by leading health researchers around the country who claim the study lacks the adequate research and controlled sampling audience to justify this conclusion.

16 Mar 2005

Nature of electrical abnormalities occurring during the development of heart failure

A Johns Hopkins undergraduate student has contributed to new research showing that electrical changes in the heart leading to heart failure can occur long before a patient exhibits any clinical symptoms.

8 Mar 2005

Lipitor patients who reduced 'bad' cholesterol show decrease in heart attack and stroke

Patients with coronary heart disease who took Pfizer's cholesterol-lowering medicine Lipitor (atorvastatin calcium) and lowered their cholesterol to well below recommended levels experienced significantly fewer heart attacks and strokes than those who only lowered their cholesterol to recommended levels

8 Mar 2005

Blood pressure treatment could cut risk of strokes and heart attacks

A new treatment strategy for hypertension can cut the risk of strokes by around 25 percent and coronary events by around 15 percent according to the preliminary results of a major international trial announced at the American College of Cardiology Late Breaking Clinical Trials II Meeting in Orlando today.

8 Mar 2005

Pilot study looks at healthy bone development in teenage mothers

Researchers in The University of Manchester's School of Medicine are undertaking a pilot study into the healthy bone development of teenage mothers, as part of an ongoing commitment to supporting the health of young families.

From The University of Manchester 7 Mar 2005