Current Calcium News and Events | Page 25

Current Calcium News and Events, Calcium News Articles.
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Role of calcium in familial Alzheimer's disease clarified, pointing to new therapeutics
Mutations in two presenilin proteins associated with familial Alzheimer's disease disrupt the flow of calcium ions within neurons. Researchers have found that suppressing the hyperactivity of the calcium channels alleviated FAD-like symptoms in mice models of the disease. These new observations suggest that approaches based on modulating calcium signaling could be explored for new AD therapies. (2014-05-13)

Endocrine disruptors impair human sperm function
A plethora of endocrine-disrupting chemicals interfere with human sperm function in a way that may have a negative impact on fertilization. These are the findings of a German-Danish team of researchers from the Center of Advanced European Studies and Research in Bonn, Germany, and the University Department of Growth and Reproduction, Rigshospitalet, Copenhagen, Denmark. (2014-05-12)

Calcium supplements not associated with increased risk of cardiovascular disease in women
Calcium supplements are widely taken by women for bone health. Previous studies have suggested that calcium supplements may increase risk of cardiovascular disease, but the data has been inconsistent. A new study by researchers at Brigham and Women's Hospital did not find that calcium supplement intake increases risk of cardiovascular disease in women. (2014-05-09)

The new face of tofu
Cornell Food and Brand Lab researchers found that many young American women prepare tofu because they want something that's quick, easy to cook and that can help keep them trim. The researchers also found that the best way to encourage others to try tofu is by showing them that it is low cost and easy to cook; they may be up to 50 percent more likely to try cooking with tofu at home! (2014-05-06)

New cause of high blood pressure and heart disease discovered
Why phosphate rich foods can increase blood pressure and promote vascular calcifications has been discovered by scientists at the Vetmeduni Vienna. The key is the hormone, FGF23 -- Fibroblast Growth Factor 23. When the level of FGF23 is raised, as through a high phosphate diet, calcium and sodium accumulate, putting strain on the cardiovascular system. The study appears today in the journal, EMBO Molecular Medicine. (2014-05-05)

Study challenges concept of 'healthy' obesity
Obese individuals who have no signs of cardiovascular disease show a much higher prevalence of early plaque buildup in the arteries compared to healthy normal weight individuals, according to a study published today in the Journal of the American College of Cardiology. The study challenges the idea of 'healthy' obesity, and researchers recommend all obese individuals be counseled about their risks for cardiovascular disease and receive tips for achieving a healthy weight. (2014-04-30)

Higher calcium intake may reduce body fat, mitigating genetic risk for diabetes
Study shows calcium intake mitigates genetic risk for increased body fat in African-American children, a population with historically low calcium intake and high risk for diabetes. (2014-04-28)

Biologists discover a key regulator in the pacemakers of our brain and heart
Biologists have discovered how an outer shield over T-type channels change the electrochemical signaling of heart and brain cells. Understanding how these shields work will help researchers eventually develop a new class of drugs for treating epilepsy, cardiovascular disease and cancer. (2014-04-25)

Eavesdropping on brain cell chatter
Everything we do -- all of our movements, thoughts and feelings -- are the result of neurons talking with one another, and recent studies have suggested that some of the conversations might not be all that private. Brain cells known as astrocytes may be listening in on, or even participating in, some of those discussions. But a new mouse study suggests that astrocytes might only be tuning in part of the time -- specifically, when the neurons get really excited about something. (2014-04-16)

Engineers develop new materials for hydrogen storage
Engineers at the University of California, San Diego, have created new ceramic materials that could be used to store hydrogen safely and efficiently. The researchers have created for the first time compounds made from mixtures of calcium hexaboride, strontium and barium hexaboride. They also have demonstrated that the compounds could be manufactured using a simple, low-cost manufacturing method known as combustion synthesis. (2014-04-15)

Calcium score predicts future heart disease among adults with little or no risk factors
Researchers found that the process of 'calcium scoring' is accurate in predicting the chances of dying of heart disease among adults with little or no known risks of heart disease. (2014-04-15)

JCI online ahead of print table of contents for April 8, 2014
This release contains summaries, links to PDFs, and contact information for the following newsworthy papers published online, April 8, 2014 in the JCI: 'Visualizing calcium dynamics in the kidney,' 'Characterization of an asplenic patient with disorder of sexual development,' 'Vascular rarefaction mediates whitening of brown fat in obesity,' 'Autophagy-regulating TP53INP2 mediates muscle wasting and is repressed in diabetes,' 'CXCL11-dependent induction of FOXP3-negative regulatory T cells suppresses autoimmune encephalomyelitis,' and more. (2014-04-08)

Calcium supplementation does not increase coronary heart disease concludes new study
Researchers presenting at the World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases showed the results of a meta-analysis of randomized controlled trials of calcium supplements. The results do not support the hypothesis that calcium supplementation, with or without vitamin D, increases coronary heart disease or all-cause mortality risk in elderly women. (2014-04-05)

Calcium waves help the roots tell the shoots
For Simon Gilroy, sometimes seeing is believing. In this case, it was seeing the wave of calcium sweep root-to-shoot in the plants the University of Wisconsin-Madison professor of botany is studying that made him a believer. (2014-04-03)

Northwestern study tests drug against Parkinson's disease
Northwestern University Feinberg School of Medicine was awarded a grant from the National Institutes of Health to conduct a $16 million phase III national study of the safety and efficacy of the drug isradipine as a potential neuroprotective agent in Parkinson's disease. This is the only phase III Parkinson's neuroprotective study currently funded by the National Institute of Neurological Disorders and Stroke at NIH. (2014-04-01)

New gel to promote bone growth on implants used in surgical procedures
A research group at Uppsala University, Sweden has developed a new responsive coating for implants used in surgery to improve their integration into bone and to prevent rejection. Neutron scattering experiments at the Institut Laue-Langevin in Grenoble, France have shown how a protein that promotes bone growth binds to this surface and can be released in a controlled way. (2014-03-30)

Studies suggest coronary calcium score indicates long-term heart health
Coronary artery calcium scoring, a test that measures the amount and pattern of calcium that has accumulated in a patient's coronary arteries, appears to provide an early indication of a person's long-term risk for heart disease, according to data from five studies presented at the American College of Cardiology's 63rd Annual Scientific Session. (2014-03-29)

First stem cell study of bipolar disorder yields promising results
What makes a person bipolar, prone to manic highs and deep, depressed lows? Why does bipolar disorder run so strongly in families, even though no single gene is to blame? And why is it so hard to find new treatments for a condition that affects 200 million people worldwide? New stem cell research may help scientists find answers to these questions. (2014-03-25)

Shock-absorbing 'goo' discovered in bone
New findings show that much of the mineral from which bone is made consists of 'goo' trapped between tiny crystals, allowing movement between them. It is this flexibility that stops bones from shattering. (2014-03-24)

Scientists discover potential way to make graphene superconducting
Scientists have discovered a potential way to make graphene -- a single layer of carbon atoms with great promise for future electronics -- superconducting, a state in which it would carry electricity with 100 percent efficiency. (2014-03-20)

Better-tasting reduced-fat desserts, dressings, sauces: Coming soon?
Adjusting the calcium level and acidity could be the key to developing new better tasting, more eye-appealing and creamier reduced-fat sauces, desserts and salad dressings, researchers reported here today. Their study was part of the 247th National Meeting of the American Chemical Society, the world's largest scientific society. (2014-03-16)

Understanding how mountains and rivers make life possible
Stanford scientists have devised a pair of math equations that better describe how the topography and rock composition of a landscape affects the process by which carbon dioxide is transferred to oceans and eventually buried in Earth's interior. (2014-03-13)

Missing link in plant immunity identified
An enzyme critical to plant immunity is found to be activated in a previously unknown way. (2014-03-12)

Calcium and vitamin D improve cholesterol in postmenopausal women
Calcium and vitamin D supplements after menopause can improve women's cholesterol profiles. And much of that effect is tied to raising vitamin D levels, finds a new study from the Women's Health Initiative just published online in Menopause, the journal of the North American Menopause Society. (2014-03-05)

Understanding heart failure at the cellular level
A team of researchers at the University of Florence in Italy and the University of Connecticut Health Center have used a multidisciplinary approach to provide an unprecedented glimpse of what happens to the heart during an 'infarction' -- a heart attack -- by looking at how the attack affects electrical activity and calcium release in heart cells. (2014-02-18)

Magnesium may protect against hip fractures
Drinking water with a relatively high concentration of magnesium protects against hip fractures, according to results of a study from the Norwegian Institute of Public Health. (2014-02-18)

Case Comprehensive Cancer Center researchers discover pathway of protein that helps cancer cells survive
A team of researchers from Case Western Reserve School of Medicine has discovered how the cancer-related protein Bcl-2 signals cancer cells to live longer. The breakthrough emerged when the scientists discovered that Bcl-2 alters the level of calcium ions in lymphoma and leukemia cells that are resistant to cancer treatments. (2014-02-13)

How bacteria communicate with us to build a special relationship
Communication is vital to any successful relationship. Researchers from the Institute of Food Research and the University of East Anglia have discovered how the beneficial bacteria in our guts communicate with our own cells. This is a key step in understanding how our bodies maintain a close relationship with the population of gut bacteria that plays crucial roles in maintaining our health, fighting infection and digesting our food. (2014-02-13)

How to make the wonder material graphene superconducting
Whenever a new material is discovered, scientists are eager to find out whether or not it can be superconducting. This applies particularly to the wonder material graphene. Now, an international team around researchers at the University of Vienna unveiled the superconducting pairing mechanism in Calcium doped graphene using the ARPES method. Their results are published in the reputed journal Nature Communications. (2014-02-11)

Loose coupling between calcium channels and sensors
In research published in this week's online edition of Science, postdoc Nicholas Vyleta and Professor Peter Jonas of the Institute of Science and Technology Austria uncover the existence of loose coupling between calcium channels and release sensors of exocytosis at a mature central synapse in the rodent brain. The researchers show that loose coupling provides a framework for presynaptic plasticity, a hallmark of synaptic signaling in hippocampal microcircuits. (2014-02-06)

Terris co-edits new textbook on thyroid, parathyroid surgery
How robots enable no-neck-scar thyroid surgery and advanced imaging helps surgeons track down often elusive, tiny parathyroid glands are timely topics for a new comprehensive textbook for endocrine surgeons. (2014-02-05)

Stopping liver failure from painkiller overdose
University of Adelaide researchers have identified a key step for the future prevention of liver failure resulting from taking too much of the everyday painkiller acetaminophenl (also known as paracetamol). (2014-02-04)

Physicists at Mainz University build pilot prototype of a single ion heat engine
Scientists at Johannes Gutenberg University Mainz and the University of Erlangen-Nuremberg are working on a heat engine that consists of just a single ion. Such a nano-heat engine could be far more efficient than, for example, a car engine or a coal-fired power plant. (2014-02-03)

Photon recoil provides new insight into matter
Quantum logic spectroscopy has been significantly extended: The new method is called (2014-01-30)

Skin cell response to environmental stimuli like viruses may predict type 1 diabetes
Type 1 diabetes is a genetically-driven autoimmune disease of pancreatic beta-cells, whose origins remain unknown. Researchers at the Boston Medical Center and Boston University School of Medicine discovered that skin cells from patients with type 1 diabetes display abnormal activity triggered by immune response mechanisms to environmental stimuli like a viral infection. These findings currently appear online in PLoS One. (2014-01-28)

Johns Hopkins scientists identify a key to body's use of free calcium
Scientists at Johns Hopkins report they have figured out a key step in how (2014-01-23)

New analysis suggests that further trials of vitamin D have little chance of showing health benefits
A new study concludes that evidence is lacking for substantial health benefits of vitamin D -- and that results of several multi-million-dollar trials currently underway are unlikely to alter this view. (2014-01-23)

FASEB announces 2014 science research conference: Calcium and Cell Function
Participants at this meeting will have the opportunity to synthesize diverse information on the disposition and handling of calcium by these elements of the calcium signaling machinery, as well as to integrate new information on the pleiotropic actions of this signaling molecule on cellular function. (2014-01-22)

High-protein diets, like the Dukan diet, increase the risk of developing kidney disease
An experiment by scientists at the University of Granada, Spain, shows a high-protein diet increases the chance of developing kidney stones and other renal diseases. They warn that this type of diet may have potentially serious negative effects and needs to be monitored. (2014-01-21)

Got milk? Evolutionary connection between milk drinking, lactose digestion, and sunlight
Oddný Sverrisdóttir, and colleagues looked for the mutation that causes lactase persistence in Europeans (referred to as -13,910*T) in the bones of early farmers from sunny Spain. They didn't find it! They then used computer simulations to estimate how much natural selection would be needed to push the frequency of -13,910*T up to what is seen is Iberia today (about one-third have the mutation). To their surprise the answer was 'a lot'! (2014-01-21)

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