Calcium Current Events

Calcium Current Events, Calcium News Articles.
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New book on calcium signaling from Cold Spring Harbor Laboratory Press
Calcium ions play a critical role in signaling in a wide variety of cells and tissues, including muscle, immune cells, neurons, the liver, and oocytes. (2011-10-03)

Getting the most from your calcium supplement
Many women (and men) can benefit from calcium supplements to their diets. The December issue of Mayo Clinic Health Letter offers these tips to make sure you are getting the most from calcium supplements. (2000-11-29)

Calcium is not as readily absorbed from soy milk as from cow's milk
Soy milk is growing in popularity because of many perceived health benefits by the public of consuming soy. The present study by Heaney et al. in The American Journal of Clinical Nutrition examines the comparative bioavailability of calcium in soy milk when compared to cow's milk, and finds soy milk less calcium-rich at current levels of fortification. (2000-04-24)

How caries-causing bacteria can survive in dental plaque
Extracellular polysaccharides play a central role in the survival capabilities of caries-causing bacteria in dental plaque, report researchers from the University of Basel's Preventative Dentistry and Oral Microbiology Clinic and Department of Biomedical Engineering in the journal Plos One. (2017-11-02)

Calcium Potentiates The Effect Of Estrogen And Calcitonin And Bone Mass
Osteoporosis (lack of bone calcium) with risk of serious bone fracture afflicts one fifth of all postmenopausal white women in the United States. This review of 20 published trials shows that bone health is best preserved in postmenopausal women who use a combination of estrogen replacement and at least 1200 mg calcium daily, rather than either treatment alone. (1998-02-01)

Research out this week helps us understand basics of how neurons communicate
Findings by a Saint Louis University researcher help us understand more about how neurons communicate. (2004-10-05)

Hebrew University study finds key mechanism in calcium regulation
In a study recently published in the Journal of Neuroscience, Hebrew University of Jerusalem researchers, along with others from Israel and the US, presented their findings of a previously undescribed cellular mechanism which is essential for keeping cellular calcium concentration low. (2013-01-03)

A Longitudinal Study Of Calcium Homeostasis During Human Pregnancy And Lactation And After Resumption Of Menses
Calcium metabolism was studied in 14 women during pregnancy and lactation. Calcium absorption increased during pregnancy, whereas calcium was delivered from the bones during lactation, and was then restored by increased absorption after the women stopped breast-feeding. (1998-04-02)

Calcium intake may be associated with reduced risk of colon cancer
A new study suggests that increasing calcium intake may reduce the risk of colon cancer. These findings appear in the March 20 issue of the Journal of the National Cancer Institute. (2002-03-19)

Study adds weight to link between calcium supplements and heart problems
New research published on bmj.com today adds to mounting evidence that calcium supplements increase the risk of cardiovascular events, particularly heart attacks, in older women. (2011-04-19)

Researchers discover how heart arrhythmia occurs
Researchers have discovered the fundamental biology of calcium waves in relation to heart arrhythmias. The findings published this month in the Jan. 19 edition of Nature Medicine outlines the discovery of this fundamental physiological process that researchers hope will one day help design molecularly tailored medications that correct the pathophysiology. (2014-01-19)

The sixth Ttaste?
UCSB biologists enhance the scientific understanding of calcium taste (2018-01-03)

Rotavirus cell invasion triggers a cacophony of calcium signals
Time-lapsing imaging and other experimental approaches reveal that rotavirus induces hundreds of discrete and highly dynamic calcium spikes that increase during peak infection. (2019-07-25)

Increasing calcium intake unlikely to boost bone health or prevent fractures, say experts
Increasing calcium intake through dietary sources or supplements is unlikely to improve bone health or prevent fractures in older people, conclude two studies published in The BMJ this week. Collectively, these results suggest that increasing calcium intake, through supplements or dietary sources, should not be recommended for fracture prevention. (2015-09-29)

Lactating mammary glands sense calcium
Large amounts of calcium are transferred from mother to offspring through breast milk. Subsequently, adaptive mechanisms are required to maintain a healthy balance of calcium in the mother's body. In the February 16 issue of the JCI, Yale University researchers reveal that in mice, the lactating mammary gland can sense calcium increases and losses and adjusts milk production with the availability of calcium in the mother's body by upregulating expression of the calcium-sensing receptor. (2004-02-16)

Ability to absorb calcium may slow rate of bone loss, find University of Pittsburgh researchers
Age-related declines in the amount of calcium absorbed by the body contribute to bone loss among older men, according to Randi L. Wolf, Ph.D., University of Pittsburgh researcher, who presented these new findings Sunday, Oct. 3, at the national meeting of the American Society for Bone and Mineral Research. (1999-10-04)

Calcium and Lead: should you worry?
ROCHESTER, MINN. -- For years, women have been urged to take calcium supplements to prevent osteoporosis. Now a new study uncovers detectable levels of lead in some of the leading supplements. What's a woman to do? According to the January issue of Mayo Clinic Women's HealthSource, most of these levels are not high enough to cause significant harm, so women should keep taking their supplements. (2001-01-04)

Calcium linked to increased risk of heart disease and death in patients with kidney disease
Kidney patients who take calcium supplements to lower their phosphorous levels may be at a 22 percent higher risk of death than those who take other non-calcium based treatments, according to a new study by Women's College Hospital's Dr. Sophie Jamal. (2013-07-19)

Cocaine use may cause increase in coronary calcium, an indicator of atherosclerosis
Researchers have found a significant association between cocaine use and the presence of calicium in the coronary arteries. (2002-11-04)

Texas A&M carrot may help prevent osteoporsis
A specially developed carrot has been produced to help people absorb more calcium. (2008-01-14)

New dietary supplement beats calcium, vitamin D for bone strength
A new study by a Florida State University researcher reveals that a new dietary supplement is superior to calcium and vitamin D when it comes to bone health. (2014-11-05)

Calcium supplements linked to longer lifespans in women
Taking a calcium supplement of up to 1,000 mg per day can help women live longer, according to a study whose lead author was Lisa Langsetmo, a Ph.D. research associate at McGill University, and whose senior author was professor David Goltzman, Division of Endocrinology and Metabolism in the Department of Medicine of the Faculty of Medicine and researcher in the Musculoskeletal Disorders axis at the Research Institute of the McGill University Health Centre. (2013-05-22)

Calcium supplements linked to increased risk of heart attack
Calcium supplements, commonly taken by older people for osteoporosis, are associated with an increased risk of a heart attack, finds a study published on bmj.com today. (2010-07-29)

Gerber funds Yale study on dietary calcium insufficiency in inner city infants
The Gerber Foundation has awarded Yale School of Medicine researcher Thomas Carpenter, M.D., $844,000 over three years to study biomarkers of dietary calcium insufficiency in inner city infants. (2005-08-15)

Calcium levels in freshwater lakes declining in Europe and North America
A new global study of how calcium concentrations are changing in freshwater lakes around the world has revealed that in widespread areas in Europe and eastern North America, calcium levels are declining towards levels that can be critically low for the reproduction and survival of many aquatic organisms. (2019-08-06)

Risk of cardiovascular death doubled in women with high calcium intake
High intakes of calcium (corresponding to diet and supplements) in women are associated with a higher risk of death from all causes, but cardiovascular disease in particular, compared with women with lower calcium intake, a study published today on bmj.com suggests. (2013-02-12)

Mislocalized calcium channel causes insulin secretion defect in diabetes
Researchers from Uppsala University have studied beta cells of type-2 diabetic donors, and find that a mislocalized calcium channel contributes to the failed insulin secretion associated with the disease. (2017-05-19)

The ryanodine receptor: Calcium channel in muscle cells
Scientists decode the 3-D structure of the calcium channel with unprecedented accuracy. (2014-12-02)

Protein provides link between calcium signaling in excitable and non-excitable cells
A calcium-sensing protein, STIM1, known to activate store-operated calcium channels has been found to also inhibit voltage-operated calcium channels. (2010-10-01)

Timing of calcium and vitamin D supplementation may affect how bone adapts to exercise
Taking calcium and vitamin D before exercise may influence how bones adapt to exercise, according to a new study. The results will be presented on Tuesday at The Endocrine Society's 95th Annual Meeting in San Francisco. (2013-06-18)

Calcium absorption is not affected by a high protein diet
The high protein and phosphorus content of the typical Western diet could contribute to poor calcium absorption, thus aggravating the problems of calcium deficiency and osteoporosis. In research published in The American Journal of Clinical Nutrition, Dr. Robert Heaney studied the diets of a large group of nuns and concluded that protein and phosphorous intake have no role in the absorption of dietary calcium. (2000-08-27)

Got carrots? Vegetables may have bone to pick as calcium providers
A specially developed carrot has been produced to help people absorb more calcium. Researchers at Texas A&M AgriLife's Vegetable and Fruit Improvement Center studied the calcium intake of humans who ate the carrot and found a net increase in calcium absorption. The research, which was done in collaboration with Baylor College of Medicine, means adding this carrot to the diet can help prevent such diseases as osteoporosis. (2008-01-14)

An amino acid controls plants' breath
IBS plant scientists demonstrate that the amino acid L-methionine activates a calcium-channel regulating the opening and closing of tiny plant pores. (2016-12-06)

Increasing daily calcium will not reduce the risk of fractures in later life
While moderate amounts of calcium (around 700 mg a day) are vital for maintaining healthy bones, there is no need to start increasing calcium intake in order to reduce the risk of fractures or osteoporosis in later life, finds a paper published online today. (2011-05-24)

Vitamin D regulates calcium in intestine differently than previously thought
A Rutgers study has discovered that vitamin D regulates calcium in a section of the intestine that previously was thought not to have played a key role. The findings have important implications on how bowel disease, including ulcerative colitis and Crohn's disease, may disrupt calcium regulation. (2020-12-01)

Blossom end rot: Transport protein identified
Poor calcium distribution in agricultural crops causes substantial loss of income every year. Now a Korean-Swiss research team under the co-leadership of plant physiologists at the University of Zurich identified a protein that regulates calcium transport in the plant root and up to the shoot. For plant breeding, the specific transport protein provides a first step toward correcting deficiency symptoms in food plants. (2011-11-23)

Study shows high blood calcium levels may indicate ovarian cancer
A new study from Wake Forest Baptist Medical Center is the first to report that high blood calcium levels might predict of ovarian cancer, the most fatal of the gynecologic cancers. (2013-01-23)

Like eavesdropping at a party
Cells rely on calcium as a universal means of communication. For example, a sudden rush of calcium can trigger nerve cells to convey thoughts in the brain or cause a heart cell to beat. A longstanding mystery has been how cells and molecules manage to appropriately sense and respond to the variety of calcium fluctuations within cells. (2008-07-31)

A bioengineered tattoo monitors blood calcium levels
Scientists have created a biomedical tattoo that becomes visible on the skin of mice in response to elevated levels of calcium in the blood. (2018-04-18)

Diets high in salt could deplete calcium in the body: UAlberta research
The scientific community has always wanted to know why people who eat high-salt diets are prone to developing medical problems such as kidney stones and osteoporosis. Medical researchers at the University of Alberta may have solved this puzzle through their work with animal lab models. (2012-07-24)

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