Other highlights in the December 20 JNCI
...g cells increased. This, the scientists found, may happen because radiation treatment seems to activate a specific signaling pathway that prompts the cancer-initiating cells to self-renew. In an editorial, Maximilian Diehn, M.D., Ph.D., and Michael F. Clarke, M.D., of the Stanford University School of Med...Professors to develop hand-held pathogen testing device
...DNA amplification and pathogen identification will happen on the same DNA biochip. A DNA biochip has signature pieces of DNA attached to a silica surface, similar to a computer chip, and is about the size of a thumbnail. Today, testing air, water or food for pathogens like cholera and dysentery must be do...Neural stem cells lend the brain a surprising capacity for self-repair
...w that self-repair and local remodeling can indeed happen along the brain's lateral ventricular wall, and further insights into this process should shed light on whether SVZ neural stem cells participate in stroke/trauma-induced brain remodeling and postnatal/adult brain tumor formation. Furthermore, unders...NIH Nanomedicine Center draws on NYU School of Medicine expertise
...ion you know exactly where the breaks are going to happen and you can even control when they are going to happen, says Dr. Roth. He and his team are looking forward to using this microscope as part of the new nanomedicine venture. It will help them observe and characterize the intricate steps of the DNA r...Global warming is reducing ocean life, increasing atmospheric carbon dioxide, say scientists
...s support computer model predictions of what could happen to the world's oceans as the result of prolonged future climate warming. "When we compared changes in phytoplankton activity with simultaneous changes in climate conditions, the agreement between the two records was simply astonishing," Behrenfeld...First molecular simulation of a long DNA strand shows unexpected flexibility
...oach being developed by Onufriev. Biology does not happen in a vacuum, he said. We are 75 percent water, and the effect of the water environment must be taken into account when studying biomolecules. Previous simulations were often slowed because they accounted for the water that is present in living syst...Examining molecular imaging's hot future
... marked seminal progress in defining what needs to happen and what can be done to accelerate the translation of science into concrete clinical practice that can help patients and the management of their diseases, he added. "While the Journal of Nuclear Medicine charts the profession's continued scientific...Newts which regrow their hearts
...e, as they did in the heart. However, this did not happen when they were injected into an undamaged extremity. Again, the researchers registered the very rapid loss of heart muscle-specific proteins. "We suspect that the signal for the de-differentiation comes from the area where the wound is healing and ...Sodium, prostaglandin may be keys to successful treatment for some bedwetters
... When asked to imagine the worst things that could happen to them, children rated bedwetting in the top 10, he said. Rittig published a study in 1989 showing that the hormone vasopressin plays a role in enuresis. This research helped lead to the use of desmopressin to stop bedwetting in many enuretic chil...Study suggests morning pollution pall for Manchester commuters
...ollution being recorded for that year but it could happen again any year in the future. Recent reports have also suggested that the level of sulphur dioxide has dropped in Manchester during this decade. That is true but the amount in the atmosphere of UK cities was negligible to start with, so you have to ...Boehlert, Gordon call for implementation of new nanotechnology report
...billions of dollars to our economy, but that won't happen if it is shrouded in uncertainty about its consequences. And our citizens, especially individuals who will be working with nanotechnology, need to be protected from any potential harm that could come from materials far smaller than what they have gen...Global warming increases species extinctions worldwide
...vironment takes a million years. It's not going to happen in a hundred years or even a few hundred years. By then, we might not even think of it as the same species. "The good news is that some species already had a few individuals that were good at moving, so some populations are evolving better dispers...New insight about the source of anxiety in Rett syndrome
...ents have many symptoms; but we don't know if they happen all at once or if there is a cascade of events." If the latter is true, then physicians might be able to intervene by halting or limiting the effect of the first symptoms to prevent secondary effects such as those that occur due to chronic anxiety. ...Climate change creates dramatic decline in red-winged black bird population
...the environment? Weatherhead says that what will happen in the future isn't clear, but if the climate trends continue, there are likely to be further changes in population size. In 2005, Weatherhead returned to the marshy region of Canada where the other decades of data had been collected. The North Atl...Children's Hospital Oakland's new maternal diet study
... mouse model also suggests that similar things can happen in humans, since our gene characteristics are very similar. Although this study does not provide any prescriptive advice, it does offer significant evidence that health outcomes may be strongly influenced at the time of birth. "Our study highlights ...Children's Hospital and Research Center-Oakland presents a new maternal diet study
... mouse model also suggests that similar things can happen in humans, since our gene characteristics are very similar. Although this study does not provide any prescriptive advice, it does offer significant evidence that health outcomes may be strongly influenced at the time of birth. "Our study highlights ...Researchers identify cells that make relapse inevitable in acute lymphoblastic leukemia
...e into clinical changes, I do believe that it will happen in my lifetime when I graduate from medical school and start to practice as a physician."......coral reef yet known is a harbinger of what could happen again as global CO2 levels and temperatures rise during the 21st century. "We've dated the reef to about 128-125,000 years ago, right in the middle of the last interglacial, or the last period of global warming before our most recent ice age," says ...... the lungs, "so knowing how these immune reactions happen could help doctors prevent them or harness them to fight the infection before it becomes established," she said....