University of Manchester pioneers study to support teenage mums' bone health
...l help inform opinion on whether calcium and other mineral supplements could be particularly beneficial to younger expectant mothers. The female skeleton contains a greater amount of calcium than the male, believed to be necessary for the demands of pregnancy and breast-feeding. As this continues to develop...Dental researchers answer key enamel question
...ies of biology: how does tooth enamel, the hardest mineral in the mammalian body, emerge from soft, organic g...collagen, the protein that guides the formation of mineral in bone. Unlike collagen - which remains an essential part of bone structure, helping it to heal aft...Signaling protein builds bigger, better bones in mice
...mal mice in the study, they developed reduced bone mineral density and bone volume. But the Wnt10b females sh...ese mice had 30 percent lower bone volume and bone mineral density than normal mice. Using PCR analysis of Wnt10b-expressing cells in bone marrow, MacDougald f...New Georgia Tech micro-CT imaging technique to help tissue engineers improve bone regeneration
...g repair) and mineralization (the process by which mineral crystals form to harden regenerating bone) by collecting three-dimensional images in vitro and in vivo. Georgia Tech researchers used the new technique to help develop bone graft substitutes that combine the availability and structural integrity of b......'s Stony Brook University. The researchers dated mineral crystals in volcanic ash layers above and below la...n chunks of pumice, which in turn contain feldspar mineral crystals. Feldspar has small amounts of radioactive potassium-40, which decays into argon-40 gas at ...Research news from the Friedman School of Nutrition Science and Policy at Tufts University
... of life." Tucker and her colleagues measured bone mineral density--a measure of bone quality--and vitamin B1...h low vitamin B12 levels had on average lower bone mineral densities--putting them at greater risk of osteoporosis--than men and women with higher levels. The...Transgenic plants remove more selenium from polluted soil than wild plants, new tests show
...Antioch. Selenium is considered an essential trace mineral for both humans and animals, but it becomes toxic at high doses. The dangers of selenium toxicity came to light in the 1980s when biologists discovered that irrigation drain water held at the Kesterson Reservoir in the San Joaquin Valley was causing ...Potentially harmful fluoride levels found in some instant teas
... chewing tobacco, some wines and certain sparkling mineral waters are more unusual sources of excess exposure. Until now, instant tea had not been recognized as a significant source of fluoride. According to Whyte, the findings could aid in the diagnosis and treatment of patients who have achiness in their b...Queen's discovery sheds new light on ancient temperatures
...s climate. Queen's researchers have discovered the mineral ikaite in 700-million-year-old marine sedimentary rocks in the Mackenzie Mountains of the Northwest Territories and eastern Yukon. This discovery proves that the ancient ocean was much colder than previously believed, says Noel James of Queen's depar...Science's Breakthrough of the Year: Salty, acidic soup could have supported life on Mars
...Global Surveyor provided, among other information, mineral data that helped the scientists choose Meridiani Planum as Opportunity's landing spot. New results from the European Space Agency's Mars Express orbiter point to water-weathered rocks elsewhere on Mars. The next generation of robotic Mars explorers ...JCI table of contents, December 15 2004
...as an important process that causes a loss of bone mineral density in patients with osteoporosis. In the Dece... inhibitor. Bone defects, including decreased bone mineral density, observed in caspase-3deficient mice were due to decreased BMSSC maturation. The caspase-3 i...Doctors link common chemotherapy drug to jawbone necrosis
... between the goods guys and the bad. Bone mass and mineral content constantly adjust throughout the life cycle to support the places on the skeleton where the most outside force occurs. Novartis's Aredia (pamidronate disodium) and Zometa (zoledronic acid) injections are the two intravenous bisphophospho...Sea change: Skeletons of ancient corals different from today's
...rine animals -- which build their skeletons from a mineral called aragonite calcium carbonate -- to grow and ...ter did not support the secretion of the aragonite mineral from which corals construct their skeleton," said Ries, who will present his research on Nov. 10 at ...Hurricane Ivan helps student study sinkholes
...minerals while fresh rainwater has a low dissolved mineral content. Fresh water conducts electricity poorly, compared to water loaded with minerals. Depressions in the bedrock surface can also store contaminants. When rain and runoff pour water through caverns and fissures, the contaminants are flushed out ...Researchers unlock mysteries of toxic metals in the largest contaminated site in United States
...e." The researchers also found another iron oxide mineral that is well known, ferrihydrite, that had been th...erals that take up these metals. But the manganese mineral is much more reactive then even the ferrihydrite," Hochella said. "We were not necessarily surprised...Researchers tracking sources of arsenic contamination in water
...ivity (mining). But we are also looking at how the mineral weathers; then, once it is in the water, how it interacts with the sediment and with bacteria." Since much of the arsenic contamination is natural, rather than as a result of industry, "and a little bit goes a long way, the taxpayers will have to pay...UCLA and Univ. of Utah researchers identify how a hormone regulates iron
...erroportin on the surface to release the iron, the mineral remains trapped inside the cell. "Our findings may lead to new interventions for specific diseases," said Dr. Elizabeta Nemeth, the study's first author and assistant research professor, Division of Pulmonary and Critical Care Medicine, David Geffen ...New method studies living bacterial cells
...st time. The analysis also showed that a bone-like mineral deposit had formed around the surface of the adhered cells. This deposit made the adhered cells much more tolerant than planktonic cells to elevated levels of the contaminant. Next, the researchers used the energy tunability of the APS X-ray beamlin...Three years of Proba, the 'smart' satellite that runs itself
...applications for the hyperspectral imager, such as mineral prospecting. CHRIS acquisitions are being coordinated with the German fire-detecting satellite BIRD (Bi-Spectral Infrared Detection). CHRIS has been reacquiring sites of forest fires previously detected by BIRD to identify the extent of the burnt ar...Surgeon General's report underscores the importance of new thinking on bone health
...xercises, provided significant improvement in bone mineral density (BMD) of postmenopausal women at specific important skeletal sites. Increasing bone mineral density is key to helping prevent the onset of osteoporosis....