Tag: "mineral" at biology news
New studies on goats' milk show it is more beneficial to health than cows' milk
...ritional characteristics - has positive effects on mineral
metabolism, recovery from ferropenic anaemia and bone mineralisation in rats. In addition, and unlike observations in cows milk, its calcium enrichment does not interfere in the bioavailability of the minerals studied. Although there is no doubt th...
Soil particles found to boost prion's capacity to infect
...tal brain disorders, bind tightly to a common soil mineral
and significantly increase the oral transmissibili...oute or degree of uptake of the agent, or that the mineral
somehow alters the size of prion aggregates, which have been shown to be more infectious than prions...
Mother-of-pearl -- Classic beauty and remarkable strength
...rl is 3,000 times more fracture-resistant than the mineral
it is made of, aragonite, says Pupa Gilbert, a phy...organic molecules - made by living organisms - and mineral
components that organisms ingest or collect from their environment. The aragonite mineral
in nacre ...
OHSU scientists find antidepressant, bone loss link
...erly men taking the so-called SSRIs had lower bone mineral
density, and that elderly women taking the antidep...en March 2000 and April 2002. They found that bone mineral
density among SSRI users was 3.9 percent lower at the total hip and 5.9 percent lower at the lumbar ...
Dietary calcium is better than supplements at protecting bone health
...e volunteers' daily calcium intake, we tested bone mineral
density and urinary concentrations of estrogen met... supplement group" tended to have the highest bone mineral
density as well as the highest calcium intake at 1,620 milligrams per day. The hormone estrogen is...
In nature, proteins sweep up nanoparticles
... filled the gaps between them. We found that the mineral
aggregates, which are produced as a consequence of microbial activity, actually contain a lot of protein, says Banfield. This is very interesting because biomineralization has traditionally been thought of as a phenomenon that occurs within a cell, o...
Plants recognize their siblings, biologists discover
...ng more roots, which allows them to grab water and mineral
nutrients before their neighbours get them. It appears, though, that they only do this when sharing a pot with unrelated plants; when they share a pot with family they dont increase their root growth. Because differences between groups of strangers a...
Minister Lunn announces $39.6M for next phase of mountain pine beetle response
...s to encourage new economic activity in energy and mineral
resource exploration by the private sector; and $1.1 million this year to support the development of options for recovering the economic value from timber killed by beetles. These investments will help us meet the objectives in B.C.s Mountai...
Talcum powder stunts growth of lung tumors
...that talcum powder stunts tumor growth, though the mineral
has been used for almost 70 years to treat the respiratory problems that accompany metastatic lung cancer. About half of all patients accumulate fluid around the surface of the lungs, a condition known as malignant pleural effusion. That fluid can...
Researchers find 24 species believed new to science in Suriname rainforest
...eed to conserve them. The study sponsored by two mineral
companies BHP Billiton Maatschappij Suriname (BMS, a subsidiary of BHP Billiton) and Suriname Aluminium Company LLC (Suralco, a subsidiary of Alcoa Inc.) provides information for policymakers and other stakeholders in deciding how to balance develo...
IMS updated recommendations on postmenopausal hormone therapy
...ure menopause. The protective effect of HT on bone mineral
density declines after cessation of therapy at an unpredictable rate, although some degree of fracture protection may remain after cessation of HT. The initiation of standard-dose HT is not recommended for the sole purpose of the prevention of fra...
Eduardo Slatopolsky honored with 2007 ISN Amgen International Prize
... Slatopolsky's pioneering experimental research in mineral
metabolism which has undoubtedly improved the live...ications in basic and clinical sciences related to mineral
metabolism a testament to his outstanding contribution to the field, Slatopolsky has dedicated his ...
New deep-sea hydrothermal vents, life form discovered
A new "black smoker"--an undersea mineral
chimney emitting hot springs of iron-darkened water--has been discovered at 8,500-foot depths by an expedition funded by the National Science Foundation (NSF) to explore the Pacific Ocean floor off Costa Rica. Scientists from Duke University, the U...
Scientists identify a candidate gene for osteoporosis
...cts 55% of Americans over the age of 50. Low bone mineral
density (BMD)the primary indicator of osteoporosisis influenced by both genetic and environmental factors (e.g., diet or medication). But the genetic element has been difficult to characterize because bone growth is controlled by many genes, includi...
Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2007
... leaves contribute less to the levels of carbon in mineral
soil than was previously believed, according to th...on to move from forest floor carbon sources to the mineral
soil, where it can contribute to the buildup of carbon stocks. The research, funded by the Departmen...
Regardless of global warming, rising CO2 levels threaten marine life
...dioxide into the oceans also affects the carbonate mineral
system by decreasing the availability of carbonate ions. Calcium carbonate is used in forming shells. With less carbonate ions available, the growth of corals and shellfish could be significantly reduced. "In our study, the increase in ocean acidity ...
Other highlights in the March 7 JNCI
...women at low risk for breast cancer with [low bone mineral
density] and healthy women with a high risk of breast cancer. Nevertheless, new SERMs are necessary for clinical testing in postmenopausal women. The SERM concept clearly works, but a long-acting SERM is required to replace raloxifene, a drug that do...
Largest physics meeting of the year, in Denver
...the resistance to motion caused by nanometer-scale mineral
particles in bone, which help to increase the strength of bone when compressed. Ortiz and her colleagues are studying bone's "nanomechanical heterogeneit! y"---the variations in its composition and porosity in different points of its structure---and ...
The metabolic response to colitis varies depending upon whether inflammation is chronic or acute
...ated with reduced body fat content, decreased bone mineral
density and attenuated use of energy, termed energy expenditure. The discovery may help lead to better symptom management for the 500,000 Americans who live with the disease. The study, "Mice With Experimental Colitis Show an Altered Metabolism W...
MUHC-led research identifies risk-factor genes for type 2 diabetes
...lays a role in the transport of zinc, an important mineral
required for the production of insulin, says Sladek. We used a totally new concept and technology to look for the genes, says Polychronakos. It worked very successfully and our findings are proof of principle that these approaches can be used to d...
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