Columbia research to examine gene influence on severity of peridontal disease, therapy response
...onsists of cleaning of the periodontal pockets and root surfaces, accompanied by gum surgery and adjunctive antibiotics. "The current system for classifying periodontal disease does not have a solid, pathobiology-based foundation," said Panos N. Papapanou, D.D.S., Ph.D., the principal investigator on th...Berkeley Lab soil scientist Margaret Torn receives Presidential Early Career Award
...s about the amount of carbon pumped underground by root growth. Since 2001, Torn has been head of Berkeley Lab's Climate Change and Carbon Management Program, coordinating the efforts of climate researchers in the Lab's Earth Sciences Division with members of the Engineering and Environmental Energy Tech...Extreme stretch-growth of axons
... Injury and Repair, placed neurons from rat dorsal root ganglia (clusters of nerves just outside the spinal cord) on nutrient- filled plastic plates. Axons sprouted from the neurons on each plate and connected with neurons on the other plate. The plates were then slowly pulled apart over a series of days,...University of Arizona licenses patent for natural fungicide
...poric plant pathogens, cause diseases that include root rots of citrus and pepper, downy mildew of pumpkin, cucumber, grape and pepper, and the late blight of potato, the disease associated with the 19th century Irish potato famine. Zoosporic plant pathogens also cause the sudden oak death affecting oak t...Study of flu patients reveals virus outsmarting key drug
...o the new, more virulent forms of flu virus at the root of pandemics. "Most of the children we looked at are younger than 3 years old," Kawaoka explains. "They're encountering the flu virus for the first time. In this respect, our population of patients might be considered comparable to one experiencing p...OHSU-VAMC study sheds light on estrogen's benefit for MS
...n, as well as the chronic inflammation that is the root of autoimmune disease. "It's very well known that pregnant women are in remission. They do feel better," Offner said. "If you could mimic pregnancy somehow, it would be great" as a therapy. Bourdette said many of his patients have told him their MS s...Plumbing trees' plumbing reveals their engineering skill
...roach -- drilling core samples and separating tree root samples for study -- is like taking a wrecking bal...eters and wall thicknesses of the water-conducting root xylems. And in laboratory experiments, they determined how vulnerable specific sections of root were...Possible new cure for psoriasis
...nly alleviate the symptoms. They do not remove the root of the evil, viz. the chronic inflammation of the skin caused by constant attacks by the body's own immune system, to which the keratinocytes react with feverish activity in the cell division field. The researchers now intend to test their method on ...Depression traced to overactive brain circuit
...ble to inadequate serotonin activity may be at the root of the mood disorder. The researchers scanned subjects after their blood tryptophan levels were reduced by about three-fourths, using a radioactive tracer (a form of glucose, the brain's fuel) which reveals where the brain is active during a parti...Hunt for a new plant hormone points to carotenoids
...t, suggesting that it may play a role in balancing root and shoot growth. In this issue of Current Biology, Ottoline Leyser and co-workers describe the identification of a gene that is essential for the synthesis of this novel hormone. The gene encodes a protein that they show can cleave carotenoids, such...APS recognizes Intel high school finalists for experiments in physiology
...d on the effects of an extract of American ginseng root on insulin secretion in beta cells (Alternative Medicine: A Relief for Diabetes, Phase 3). Jason Pellegrino used transgenic mice for his project (Analysis of Metformin's Effect on Brain Insulin Receptors). In addition to the four award winners, the ...Human periodontal ligament stem cells isolated for the first time
...eeth, and gently tugged the ligament free from the root of the tooth. Through trial and error, the group successfully extracted, sorted, and cultured the various cells from the tissue, hoping they had isolated stem cells in one of their many Petri dishes. The scientists didn't have to wait long to get ...'Weed from hell' found in Texas
...ll as a spot treatment. "We'd expect to get some root kill from all these products, but we won't know for sure until this fall or next spring," Baumann said. For Web site images and articles from other states, Ketchersid recommended http://www.invasive.org/tsa/ and http://www.ceris.purdue.edu/napis...As humans alter land, infectious diseases follow
...e generations," says Patz. "We need to look at the root causes of the spread of infectious disease, and many of these are related to habitat and ecosystem change."...JGI, VBI help unravel sudden oak death & soybean disease
...ted to P. sojae infestation, known as Phytophthora root rot of soybean, a post-emergence disease of the field, exceeded $1 billion in 2003. The aptly named genus Phytophthora derives its moniker from the Greek words for "plant destroyer." Part of a fungus-like group of organisms known as oomycetes, or wat...Manipulating biotope space can enhance beneficial biodiversity effects
...species in resource use, as is the case if species root in different soil depths. This knowledge led to the further hypothesis that the biotope space, for example the soil volume in which species can root, should also matter. With increasing biotope space more species occupying different niches can be "p...New highways drive accelerating deforestation in Amazonia
...ause they fail to address one of the most critical root causes of Amazonian deforestation: the alarming proliferation of new highways and infrastructure projects that penetrate deep into the heart of the Amazon rainforest. According to team-leader William Laurance, "If Brazil doesn't curtail the expansio...Researchers target deficit irrigation for wine grapes
...ied a deficit irrigation strategy known as partial root zone drying, which originated in Australia. With partial root zone drying, irrigation water is alternately applied to only one-half of a vine's roots. "We tested...Motion that powers sperm provides key to unravelling rare genetic disorder
...havoc with more than fertility: it may also be the root cause of the rare genetic disease Bardet-Biedl syndrome (BBS). Reporting in the journal Cell tomorrow, researchers from the UK, US and Canada reveal they have discovered a novel gene for BBS that's necessary for the generation of a cell's cilia and f......rent goal is to identify the genes responsible for root development in trees, making it possible for fores...elop roots. We'd like to find the genes that cause root initiation so we can develop trees we could propagate, just like houseplants." This would allow for ...