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.

Point-of-selection nutrition information cards can spur students to pick the right foods

Mystery meat not withstanding, high school cafeterias can provide nutritional, balanced and healthful meals, but students have to choose correctly.

6 Jul 2005

Bone Medical completes first trial of oral parathyroid hormone product for treatment of osteoporosis

Bone Medical Ltd announced today the completion of a Phase I trial of its oral parathyroid hormone (PTH) product Perthoxal™ under development for the treatment of osteoporosis.

3 Jul 2005

Major study says for diabetics with high blood pressure diuretics are the best option

A major new study has found that for people with type 2 diabetes and high blood pressure, cheaper diuretic medications may be the most cost-effective option in reducing hypertension.

29 Jun 2005

Diuretics work better than newer and more costly medicines for diabetics with high blood pressure

Diuretics (water pills) work better than newer and more costly medicines in the treatment of high blood pressure and prevention of some forms of heart disease in people with type 2 diabetes, according to results from the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT).

28 Jun 2005

Vascular disease most common cause of male erectile dysfunction

A preeminent cardiologist reports, for the first time in a large prospective study, that certain of his patients with erectile dysfunction (ED) and heart problems can now safely use erection drugs that help up to 80% of men restore function and quality of life.

21 Jun 2005

Chase those monthly blues away with a diet rich in calcium and vitamin D

U.S. researchers say that a diet rich in calcium and vitamin D might very well help banish pre-menstrual syndrome (PMS).

14 Jun 2005

A diet rich in calcium and vitamin D may lower the risk of developing premenstrual syndrome

A diet rich in calcium and vitamin D may lower the risk of developing premenstrual syndrome (PMS), according to a study in the June 13 issue of Archives of Internal Medicine.

13 Jun 2005

Density of breast tissue can directly influence tumour development

New research suggests that there is a direct relationship between the density of breast tissue, and the risk of developing tumours in dense areas of the breast.

8 Jun 2005

New Calcitonin drug delivery research holds promise for osteoporosis sufferers

Calcitonin, a hormone that lowers calcium levels in the blood and prevents bone loss, has only been available in an injectable and nasally-administered format to date.

1 Jun 2005

Patients with metabolic syndrome and moderate calcium levels in the coronary arteries have greater chance of blocked arteries

Conditions such as abdominal obesity, high blood pressure, abnormal cholesterol levels and high blood sugar are problematic enough for people all on their own.

26 May 2005

North American women receiving inadequate vitamin D

Vitamin D inadequacy may be overlooked by clinicans thus leading to inadequate vitamin D supplementation in patients with osteoporosis, according to new research issued today at the American Association of Clinical Endocrinologists (AACE) Fourteenth Annual Meeting and Clinical Congress.

18 May 2005

A drug that controls blood pressure and reduces heart risk also appears to protect against diabetes

In new results from the VALUE trial that pitted the drug valsartan against another blood pressure drug, amlodipine, the patients taking valsartan were found to have a 23 percent lower risk of developing diabetes during the four or more years of the study.

18 May 2005

Role of soft drinks in childhood obesity

Obesity is one of the biggest threats to child health. Genetics, decreases in physical activity, increases in television watching, and consumption of fast food are factors that have led to an increase of childhood obesity in the United States. Excessive consumption of sugar sweetened drinks may also be a key factor.

11 May 2005

Races react differently to dietary salt

African-American and Caucasian adolescent girls handle sodium and calcium differently, which may help explain why the races have different rates of hypertension and osteoporosis, according to research at Purdue University.

10 May 2005

Carbonated soft drinks can cause heartburn

Carbonated soft drinks and one of the most commonly prescribed sleeping pills, benzodiazepines, can cause nighttime heartburn, according to new research.

9 May 2005

New study suggests you might benefit from adding more low-fat dairy to your diet

A new study suggests that increased intake of lowfat dairy foods, as part of a DASH-based eating plan, may lower blood pressure more effectively than a conventional low-fat diet -- a significant finding for the estimated 1 in 3 Americans who suffer from high blood pressure.

9 May 2005

MDCT highly accurate for diagnosing coronary artery disease in patients with zero to moderate coronary calcification

In patients with no or moderate coronary calcification, 16-slice MDCT allows the reliable detection of coronary artery stenosis with high diagnostic accuracy, say researchers from Tuebingen University Hospital in Germany. Coronary artery stenosis is the narrowing of coronary arteries due to the build-up of calcified plaques.

3 May 2005

Acupuncture treatment no more effective than sham treatment in reducing migraine headaches

Migraine patients who received true acupuncture had no decrease in headaches as compared with those who received sham acupuncture treatment, according to a study in the May 4 issue of JAMA.

3 May 2005

Discrimination leads to coronary artery calcification in African-American women

The more discrimination African-American women report, the more likely they are to have coronary artery calcification, a buildup of calcium in the vessels that is associated with atherosclerosis, according to a study presented at the American Heart Association's 45th Annual Conference on Cardiovascular Disease Epidemiology and Prevention.

1 May 2005

Fiber supplements may lower cardiovascular risk in type 2 diabetics

Fiber supplements lower "bad" low-density lipoprotein (LDL) cholesterol and increase "good" high-density lipoprotein (HDL) cholesterol in people with type 2 diabetes, according to a study presented at the American Heart Association's Sixth Annual Conference on Arteriosclerosis, Thrombosis and Vascular Biology.