Scientists discover the cellular roots of graying hair
Few things about growing older are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of this usually unwelcome transformation.In a report posted today on the Web site of the journal Science,researchers from Dana-Farber Cancer Institute and Children’s HospitalBoston say they have found the cellular cause of graying hair whileinvestigating th...Roots Engage in Underground Chemical Warfare
In addition to providing physical support and taking in nutrients, plant roots secrete a wide variety of compounds that affect other nearby roots, as well as insects and microbes. But because it goes on unseen, bactericidal root activity has not been extensively investigated—until now. Using the model plant Arabidopsis thaliana, a relative of garden-variety cabbage, Jorge Vivanco and co-workers a...Researchers find gene that may be at root of potato blight
Researchers have found a gene they suspect plays an important role in triggering the blight that wiped out Ireland's potato crops a century-and-a-half ago. The scientists describe the gene, called Avr3a, in a study...Unique library of plant genes germinates, takes root at UNC
The University of North Carolina at Chapel Hill's newest "library" is not the kind that will entice an average book lover, but it eventually will please thousands of plant scientists around the world. Through such researchers' work, it will undoubtedly contribute to improving crops that humans around the planet depend on every day, its developers say. Named Phytome, the unique library is a...The roots of civilization trace back to ... roots
About five to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar to rutabagas and turnips may have been one of the reasons. According to research by anthropologists Greg Laden of the University of Minnesota and Richard Wrangham of Harvard University, the presence of fleshy underground storage organs like roots and tubers must have sustained our a...PFGE Analysis of Chromosomal DNA From a Single Hair Root
Contributed by Jacqueline Boultwood, Gail M. Abrahamson, and J.S. Wainscoat, Leukemia Research Fund, Molecular and CytogeneticHaematology Unit, John Radcliffe Hospital, Headington, OxfordOX3 9DU, United Kingdom Tumor diagnoses, DNA fingerprinting, and other genetic analysisoften require DNA obtained in a no...Farm Aid celebrates 20-year journey, heads back to Illinois roots
As indicated by the in an article this weekend on this unique phenomenon, the American farm is not on...NameProtect roots out fake tsunami-related donation sites
Internat...Laser to help in root canal treatment
The Food and Drug Administration has avowed Biolase Technology of San Clemente, in California clearance to vend its Waterlase laser therapy for root canal procedures on hard and soft tissue.//The approval is the first by the FDA for a laser root canal and covers all enamel, dentin and pulpal removal as well as shaping of the root canal. The Waterlase is not a direct laser, the but altern...Sleepwalking has genetic roots
Adults who sleepwalk are more likely to have a specific genetic variant of part of their immune system than those who do not. Sleepwalking in adults is quite different from childhood sleepwalking.// It's more likely to lead to injury or violent behaviour, and those affected often have other health problems, like sleep apnoea. A study of 60 adult sleepwalkers in Bern, Switzerland, shows an...Ageing stem cells at the root of infections, leukemia
Scientists have reported that the incidence of leukemia and infections in elderly people// may be due to the ageing stem cells. Stem cells are undifferentiated cells that have the potential to regenerate itself and develop into all types of specialized cells types that may form various types of cells of the tissue from which it was taken. Researchers working in the Stanford...Roots of polycystic ovarian syndrome traced to mother’s wom
How the daughters develop in their mother’s womb can be an indication of how they may be at risk// from developing polycystic ovarian syndrome. Polycystic ovarian syndrome is a condition that affects about 10% of the women in the childbearing age. This condition is characterized by high levels of male hormones called androgens, with irregular or no menstrual cycles, and with presence o...Mad Cow Disease Has Roots Traceable To Man
Bovine feed, which has got traces of human remains, may be at the root of bovine spongiform encephalopathy or the mad cow disease. A report in the latest issue of The Lancet had forwarded this hypothesis. // The cause of the original case or cases of BSE is currently unknown. Sheep scrapie or a previously undetected bovine transmissible spongiform encephalopathy (TSE) that arose spont...DLP Standard Aortic Root Cannulae
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