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.

Research shows relationship between low calcium intake and higher levels of osteoporosis in men with prostate cancer

Daily calcium intake is an effective way of identifying prostate cancer patients with a higher than average risk of osteoporosis, according to the April issue of the urology journal BJU International.

11 Apr 2007

Thyroid surgery can be done safely in an outpatient setting

Thyroid surgery, which has traditionally been an overnight hospital procedure, can be done safely in an outpatient setting, and in fact is preferable because it is less expensive, according to a new study published in the April issue of Otolaryngology-Head and Neck Surgery .

7 Apr 2007

Nicotine shown to enhance learning and memory

While nicotine is highly addictive, researchers have also shown the drug to enhance learning and memory, a property that has launched efforts to develop nicotine-like drugs to treat cognitive deficits in Alzheimer's and Parkinson's diseases, schizophrenia, and attention-deficit/hyperactivity disorder.

5 Apr 2007

Are multivitamins necessary?

Are multivitamins necessary? The April issue of Mayo Clinic Women's HealthSource answers this and other common questions about multivitamins.

5 Apr 2007

No apparent increase in coronary heart disease for women who initiate hormone therapy

Wyeth Pharmaceuticals, a division of Wyeth ( NYSE:WYE ) , provides comment on a re- analysis of pooled data from both hormone therapy arms of the Women's Health Initiative (WHI) Study published today in the Journal of the American Medical Association.

4 Apr 2007

Raman spectroscopy for faster body-fluid tests

University of Rochester researchers announce in the current issue of Applied Optics a technique that in 60 seconds or less measures multiple chemicals in body fluids, using a laser, white light, and a reflective tube.

4 Apr 2007

Trial of percutaneous coronary intervention added to optimal medical therapy in patients with stable coronary heart disease

Percutaneous coronary interventions (PCI) involve opening partially blocked arteries to improve blood flow to the heart. These procedures are performed more than 1 million times a year.

3 Apr 2007

New contrast agent selectively targets and highlights malignant micro-calcifications in the breast

Harvard Medical School researchers are working on a new, simpler way to distinguish malignant tumors from non-cancerous masses when screening for breast cancer.

2 Apr 2007

Potential new cancer diagnosis and treatment options

By recognizing sugars, a technique developed by University of Michigan analytical chemist Kristina Hakansson sets the stage for new cancer diagnosis and treatment options.

2 Apr 2007

Researchers identify gene for osteoporosis

Researchers report the identification of a gene that may play a role in susceptibility to osteoporosis, the crippling disease that leads to bone fractures, especially of the hip and spine.

31 Mar 2007

Novel anti-oxidant and anti-inflammatory agent reduces coronary events

Heart attacks are caused by a build-up and instability of plaque in the coronary arteries, which is often a result of chronic inflammation of the blood vessel walls.

31 Mar 2007

Blood pressure control with Clevidipine

Researchers report that an investigational anti-hypertensive therapy may perform better in controlling blood pressure than standard treatments for patients undergoing heart surgery, during a presentation at the American College of Cardiology's 56th Annual Scientific Session.

30 Mar 2007

DNA layer reduces risk of reserve parts being rejected

Dutch researchers Jeroen van den Beucken and John Jansen have given body implants a DNA layer. This layer ensures a better attachment, more rapid recovery of the surrounding tissue and less immune responses. The older we get the more 'reserve-parts' we need.

27 Mar 2007

Why people eat the foods they do

People purchase foods based on their income level, their belief in a food's health benefit and cost. However, ethnicity and gender also impact people's food choices, according to researchers at the Johns Hopkins Bloomberg School of Public Health.

27 Mar 2007

FDA warning on mineral water containing arsenic

The Food and Drug Administration (FDA) is re-issuing its warning to consumers not to drink "Jermuk" brand mineral water due to the risk of exposure to arsenic, a toxic substance and a known cause of cancer in humans.

25 Mar 2007

Screening key to early detection of colorectal cancers

Studies show that only half of the people who are at risk of colon and rectal cancers are getting screened regularly.

21 Mar 2007

FDA warning on mineral water from Armenia

The Food and Drug Administration (FDA) is warning consumers not to drink certain brands of mineral water imported from Armenia due to the risk of exposure to arsenic, a toxic substance and known cause of cancer in humans.

8 Mar 2007

Study compares Lipitor with Simvastatin

A retrospective analysis of a large U.S. managed care database showed that patients who took Pfizer's cholesterol-lowering medicine Lipitor (atorvastatin calcium) Tablets had a significant 14 percent reduction in the risk of cardiovascular events, including heart attacks and strokes, compared with patients who took simvastatin.

5 Mar 2007

Ice cream to conceive!

Drinking whole fat milk and eating ice cream appears to be better for women trying to become pregnant than a diet consisting of low-fat dairy products such as skimmed milk and yoghurt, according to new research published in the journal, Human Reproduction.

28 Feb 2007

Danish court injunction prohibits sale of generic Lipitor

Pfizer has announced that a Danish court has granted a preliminary injunction against Nomeco A/S -- the largest pharmaceutical wholesaler in Denmark -- that prohibits the sale of a generic version of Lipitor by generics manufacturer Ranbaxy.

25 Feb 2007