Improved NIST SRM aids lead poisoning detection
... the 2010 objective. Research reports also provide evidence of adverse effects at an even lower lead blood level than that of the 2010 target among children younger than 72 months. SRM 955c is packaged as four vials of frozen blood at four progressively elevated lead concentration levels. Unlike previous i...Beyond Mesopotamia: A radical new view of human civilization reported in Science
... the cradle of civilization, but a growing body of evidence suggests that in addition to Mesopotamia, many civilized urban areas existed at the same time about 5,000 years ago in an arc that extended from Mesopotamia east for thousands of kilometers across to the areas of modern India and Pakistan, accordin...Immunity in social amoeba suggests ancient beginnings
...or future research in the area. One is to look for evidence of the same immune mechanism and protein in other kinds of amoeba. The other is to look at unicellular organisms to determine if they have this same kind of immune signaling pathway. If none of the early diverging organisms that never became multi...Discredited Korean embryonic stem cells' true origins revealed
...e, was retracted by the journal in early 2006 amid evidence that researchers Hwang Woo-Suk et al. had falsified their data. An initial investigation of the Korean group's first embryonic stem cell line suggested it might be parthenogenetic in origin, but the analysis was inconclusive, and the cells' origin, ......niversities Space Research Association, have found evidence that indeed there are specific regions where broken DNA is concentrated for repair. "NASA has long been interested in the radiation hazards in space," says LSD's Sylvain Costes, who led the study. "On a trip to Mars, astronauts will be exposed to...Marijuana component opens the door for virus that causes Kaposi's sarcoma
... Association for Cancer Research, offer cautionary evidence that those with weakened immune systems should spe...at block the two cannabinoid receptors, which adds evidence that THC is the culprit, Dr. Groopman said. Once a cell is infected, the presence of THC may als...Phase II study of therapeutic vaccine shows efficacy in patients with metastatic colorectal cancer
...ions stemming from TroVax vaccination or any other evidence that would call into question the safety of the vaccine. While the study was not designed to prove that patients survived longer than would normally be expected, the researchers noted that, on average, the overall median survival was 68 weeks in a...How a pain in the neck could be bad for your blood pressure
...in the Journal of Neuroscience, provides the first evidence for a role for these connections in influencing brain regions which control body functions that we don't need to think about, such as breathing and blood pressure. The area of the brain where the signals from the neck terminate were first identifie...New study demonstrates important role of glia in circadian timing
...ought to actively modulate them. Providing further evidence in support of this theory, researchers at the Department of Neuroscience and the Center for Neuroscience Research (CNR) at Tufts University School of Medicine (TUSM) recently identified a specific population of glial cells that is required for the co...Rare example of Darwinism seen in action
...ng UC Riverside biologists, has found experimental evidence that supports a controversial theory of genetic conflict in the reproduction of those animals that support their developing offspring through a placenta. The conflict has been likened to a battle of the sexes or an arms race at the molecular level ...Negative effects of plastic's additive blocked by nutrient supplements
...n animals have provided additional and tantalizing evidence that what a pregnant mother eats can make her offspring more susceptible to disease later in life. This susceptibility is the result of a process that alters how a gene is expressed without actually changing or mutating the gene itself. Appreciatio...News tips from the Journal of Neuroscience
...ydroxydopamine. Among targets of PP2A, the authors evidence suggests that increases in phosphorylated Akt may mediate the protective effects of G-substrate....Jan Lwe awarded 2007 EMBO Gold Medal
...veries of FtsZ and MreB proved to be key pieces of evidence for the discovery of the bacterial cytoskeleton. Until that point, having a cytoskeleton was a claim to fame held only by eukaryotic cells. The inner workings of bacterial (prokaryotic) cells were now showcased against the backdrop of a flexible sc...Injection drug use and HIV and HCV infections among Ontario prison inmates
...sons. He postulates that it may be time to put the evidence of this ongoing denial of human rights before the courts....After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis
...e trigger for MS is unclear, though there's strong evidence for an interplay between genetic susceptibility an...a gene affects the IL7R-alpha protein. They found evidence that the MS-associated variant causes a reduction in the amount of the IL7R-alpha protein at the T c...Prenatal stress keeps infants, toddlers up at night, study says
...oblems affecting it remained unclear. Now, we have evidence that these patterns may be set early on, perhaps even before birth, said lead author Thomas OConnor, Ph.D., associate professor of Psychiatry at the University of Rochester Medical Center. This is another piece in the unfolding mystery of just how mu...Gene expression pattern could lead to improved treatment of pediatric septic shock
...ples from children with septic shock. It found new evidence linking adverse clinical outcomes with the decreased expression of genes that encode proteins involved in zinc regulation. This unexpected finding suggests these proteins and zinc regulation could provide a target for therapeutic intervention to inhi...More fish oil, less vegetable oil, better for your health
Bethesda, Md. Scientists have provided new evidence that using more fish oil than vegetable oil in the diet decreases the formation of chemicals called prostanoids, which, when produced in excess, increase inflammation in various tissues and organs. The results, by William L. Smith, Professor and Chai...U-M team identifies gene that regulates blood-forming fetal stem cells
... new University of Michigan study adds to mounting evidence that stem cells in the developing fetus are distinct from both embryonic and adult stem cells. In the last several years, stem cell researchers have realized that fetal stem cells comprise a separate class. They recognized, for example, that fetal ......or and execute its oversight role. While available evidence does not suggest that all materials with nanoscale dimensions will be hazardous, the Task Force correctly concludes that the agency needs new safety assessment tools, greater nano-specific staff expertise and more risk research to assess the likeliho...