 |
|
Dietary calcium could possibly prevent the spread of breast cancer to bone
October 03, 2007PHILADELPHIA - A strong skeleton is less likely to be penetrated by metastasizing cancer cells, so a fortified glass of milk might be the way to block cancer's spread, according to researchers at the ANZAC Research Institute in Concord, Australia. Using a mouse model of breast cancer metastasis, the researchers found that a calcium deficiency may increase the tendency of advanced breast cancer to target bone. Dietary calcium, they reason, might help prevent the spread of breast cancer to bone and serve as an adjuvant treatment during therapy.
Their findings are presented in the Oct. 1 issue of Cancer Research, a journal of the American Association for Cancer Research.
According to the researchers, about 70 percent of patients who develop advanced breast cancer will have secondary tumors in the bone. The spread of cancer to bones leads to cellular processes that physically break down existing bone, leading to further pain and illness. In fact, the breakdown of bone and subsequent bone re-growth forms what senior author Colin R. Dunstan, Ph.D., terms a "vicious cycle" that turns bone into an environment conducive to cancer growth.
To better understand the role of bone turnover in the spread of cancer, Dunstan and his team compared the effects of a low- and high-calcium diet in mice. They found that dietary calcium deficiency - independent of the chemical factors that control turnover - was related to a significantly higher increase in cancer cell proliferation and the total proportion of bone that had been penetrated.
"These results could have implications for patients with breast cancer bone metastases or who are at high risk for developing metastatic disease," Dunstan said. "Many older women in our community are known to be calcium deficient due to low calcium dietary intake or due to vitamin D deficiency. These women could be at increased risk for the devastating effects of bone metastases."
According to Dunstan, his results call for further, directed clinical trials "to investigate how calcium and vitamin D status influence progression to metastatic disease, and to determine if corrections of calcium and vitamin D deficiencies are important in breast cancer patients."
American Association for Cancer Research
To better understand the role of bone turnover in the spread of cancer, Dunstan and his team compared the effects of a low- and high-calcium diet in mice. They found that dietary calcium deficiency - independent of the chemical factors that control turnover - was related to a significantly higher increase in cancer cell proliferation and the total proportion of bone that had been penetrated.
"These results could have implications for patients with breast cancer bone metastases or who are at high risk for developing metastatic disease," Dunstan said. "Many older women in our community are known to be calcium deficient due to low calcium dietary intake or due to vitamin D deficiency. These women could be at increased risk for the devastating effects of bone metastases."
According to Dunstan, his results call for further, directed clinical trials "to investigate how calcium and vitamin D status influence progression to metastatic disease, and to determine if corrections of calcium and vitamin D deficiencies are important in breast cancer patients."
American Association for Cancer Research
Dietary Calcium Current Events and Dietary Calcium News RSSDiabetics on high-fiber diets might need extra calcium, report UT Southwestern researchers
The amount of calcium your body absorbs might depend, in part, on the amount of dietary fiber you consume.
Calcium during pregnancy reduces harmful blood lead levels
Pregnant women who take high levels of daily calcium supplements show a marked reduction in lead levels in their blood, suggesting calcium could play a critical role in reducing fetal and infant exposure.
Vitamin D deficiency: Common and problematic yet preventable
In a review article to appear in the July 19th issue of the New England Journal of Medicine, Dr. Michael Holick, an internationally recognized expert in vitamin D, provides an overview of his pioneering work that expounds on the important role vitamin D plays in a wide variety of chronic health conditions, as well as suggesting strategies for the prevention and treatment of vitamin D deficiency.
Dietary calcium is better than supplements at protecting bone health
Women who get most of their daily calcium from food have healthier bones than women whose calcium comes mainly from supplemental tablets.
New research clarifies roles of calcium, vitamin D, and protein in bone health, fracture risk
New research shows calcium in food might do more to protect bones than supplemental calcium in pill form, according to results presented at the IOF World Congress on Osteoporosis in Toronto, Canada. Bones lose calcium as they age, making them vulnerable to osteoporosis and fractures.
Calcium supplements may be little help for healthy kids
There's little question that most kids get too little calcium, but a new review of evidence casts doubt on the value of supplements and calcium-fortified foods to build stronger bones.
More Dietary Calcium Current Events and Dietary Calcium News Articles
 |
Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride by Standing Committee on the Scientific Evaluation of Dietary Reference Intakes (Author), Food and Nutrition Board (Author), Institute of Medicine (Author) Since 1941, Recommended Dietary Allowances (RDAs) has been recognized as the most authoritative source of information on nutrient levels for healthy people. Since publication of the 10th edition in 1989, there has been rising awareness of the impact of nutrition on chronic disease. In light of new research findings and a growing public focus on nutrition and health, the expert panel responsible for formulation RDAs reviewed and expanded its approach - the result: "Dietary Reference Intakes". This new series of references greatly extends the scope and application of previous nutrient guidelines. For each nutrient the book presents what is known about how the nutrient functions in the human body, what the best method is to determine its requirements, which factors (caffeine or exercise, for... |
 |
21st Century Dietary Supplement Calcium Citrate + D, Value Size , 400 caplets (Pack of 3) by 21st Century 100% highly absorbable calcium citrate plus Vitamin D for strong & healthy bones. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Compare to active |
 |
Fluker`s Dietary Supplement Mix with 2:1 Calcium:Phosphorus for Lizards, Turtles & Pet Reptiles (2 oz.) by Fluker Farms This dietary supplement for lizards and turtles provides the required calcium-to-phosphorus ratio your pet needs for strong, healthy bones and vital bodily functions. ÿRecommended for reptiles that eat small amounts of high-phosphorus foods (crickets, mealworms, wax worms, mice). |
 |
Natrol My Favorite Multiple (Multivitamin + Calcium) without Iron (Pack of 2, 180 Caps each Bottle) by Natrol |
 |
SportLegs (With Calcium) Dietary Supplement (120 capsules) TEAM DOZEN (12 Bottles) ONLY $20 a bottle! by Sport Specifics, Inc. BICYCLING magazine's testers were unanimous about SportLegs: It's like a good day in a bottle!" They explained, "SportsLegs contains lactate forms of calcium and magnesium. Taken an hour before exercise, it pre-loads your bloodstream with lactate and tricks your muscles into thinking they don't need to make more - a sneaky way to raise your lactate threshold and boost performance, according to unpublished research by scientists at Ohio's Kent State University." The Denver Post said: "Pop 'em worry-free: Everyone, from the NCAA to an army of top-tier athletes, supports Sportlegs." "SportLegs actually delivers on its promise to reduce fatigue in leg muscles and keep you pushing, pedaling and schussing longer." |
|
More dietary calcium helps to reduce body fat in some groups; calorie reduction also a factor.(Children's Health): An article from: Family Practice News by Heidi Splete (Author) This digital document is an article from Family Practice News, published by International Medical News Group on June 15, 2004. The length of the article is 644 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: More dietary calcium helps to reduce body fat in some groups; calorie reduction also a factor.(Children's Health) Author: Heidi Splete Publication: Family Practice News (Magazine/Journal) Date: June 15, 2004 Publisher: International Medical News Group Volume: 34 Issue: 12 Page: 65(1) Distributed by Thomson... | |
 |
Source Naturals Calcium Citrate 1000mg, 180 tablets (Pack of 2) by Source Naturals Dietary supplement. 1000 mg of Calcium per serving. Calcium citrate is a form of calcium that is more soluble and better absorbed by the body than other forms of calcium. Research suggests that people who experience low levels of HCl in the stomach may ab |
 |
Chewable Calcium Citrate Plus Vitamin D3 Bioavailable Combination Dietary Supplement 120 Tablet by Being Well at Hillcrest Chewable Calcium provides an easy-to-absorb form of calcium along with natural vitamin D3. These essential nutrients work together to help build and maintain good bone health. |
![Interaction between dietary calcium supplementation and chronic waterborne zinc exposure in juvenile rainbow trout, Oncorhynchus mykiss [An article from: ... Biochemistry and Physiology, Part C]](http://ecx.images-amazon.com/images/I/51A51TBEEML._SL160_.jpg) |
Interaction between dietary calcium supplementation and chronic waterborne zinc exposure in juvenile rainbow trout, Oncorhynchus mykiss [An article from: ... Biochemistry and Physiology, Part C] by S. Niyogi (Author), C.M. Wood (Author) This digital document is a journal article from Comparative Biochemistry and Physiology, Part C, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: This study investigated the effects of dietary Ca^2^+ on branchial Ca^2^+ and Zn^2^+ uptake, new and total zinc accumulation in target tissues (gill, liver and kidney), calcium and zinc homeostasis, and acute tolerance to waterborne zinc in fish chronically exposed to waterborne zinc. Juvenile rainbow trout (Oncorhynchus mykiss) were maintained on a calcium-enriched diet [41.2 mg vs. 21.2 mg (control) calcium/g dry wt. of food] and chronic waterborne zinc exposure (2.3 @mmol/L), both... |
|
Effects of dietary calcium on growth and oviposition of the African land snail Limicolaria flammea (Pulmonata: Achatinidae).: An article from: Revista de Biologîa Tropical by Rosemary I. Egonmwan (Author) This digital document is an article from Revista de Biologîa Tropical, published by Universidad de Costa Rica on March 1, 2008. The length of the article is 5191 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. Citation Details Title: Effects of dietary calcium on growth and oviposition of the African land snail Limicolaria flammea (Pulmonata: Achatinidae). Author: Rosemary I. Egonmwan Publication: Revista de Biologîa Tropical (Magazine/Journal) Date: March 1, 2008 Publisher: Universidad de Costa Rica Volume: 56 Issue: 1 Page: 333(11) Distributed by Gale, a part of Cengage... |
| © 2009 BrightSurf.com |