Muscling their way into the food chain: Zebra mussels alter fish populations in the Hudson River
...uvenile fish," Strayer comments. When mussel beds remove food particles, a byproduct is increased light penetration. In shallow light-limited areas, increased sunlight results in the growth of aquatic plants and the invertebrates associated with them, creating more fish food in vegetated shorelines. Thus w...Possible new cure for psoriasis
...ubstances only 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 m...Small animal imaging gives cancer clues
...ought to develop from DCIS, andstandard care is to remove the entire area involved, Borowsky said.Based on the appearance of a DCIS under the microscope, doctors canestimate how quickly it could become a more aggressive, invasive formif not completely removed, he said. The new PET technology allowsresearche...Viral proteins may prevent bacterial infections
...eria, either orally or nasally. They were able to remove the colonization completely using phage enzymes delivered in a single dose. Because these enzymes are derived from viruses that infect and kill specific bacteria, they are like smart bombs that target and kill only the species or strain of bacteria...Study explains spatial orientation differences between sexes
... between the sexes. "Since the instructions didn't remove the difference between how men and women judge spatial orientation, we believe it is likely a result of physiological differences," says Luc Tremblay, a professor in U of T's Faculty of Physical Education and Health. For example, says Tremblay, the o...Babies with DiGeorge syndrome saved by immune supression, thymus transplant
...ess to the heart, in many operations surgeons must remove parts of the thymus to access the heart. Parents of the donor infants agree to donate the discarded tissue for a transplant. The clinicians culture the donor tissue for two weeks while performing testing to ensure that no diseases are transferred wit...Double-segment periodicity underlies 'odd' segment generation in centipedes
...d two at a time, evolutionary changes would add or remove segments in pairs, so that only certain numbers of leg-bearing segments are possible. Why then odd numbers rather than even? The authors leave this question open, but they suggest that additional segments that do not bear legs are also formed with th...Family-friendly, flexible and far-reaching
... short-term fellowship eligibility criteria aim to remove geographical boundaries from applications and promote collaboration in research. Previously movement was only possible between European Molecular Biology Conference (EMBC) member states ( http://www.embo.org/embc/index.html ): Candidates from non-...How wounds heal Clues from flies
...uitment of epidermal cells to the injury. When you remove a scab, you're also removing some of the newly regenerated tissues growing underneath, thereby interfering with the healing process. Many different cell types and proteins have been linked to the repair process, but the complexity of the mammalian wo...Study finds plant enzyme function changes with location in cell
...of the fruit fly for plant scientists. Desaturases remove hydrogen atoms from fatty acid chains to create carbon-carbon double bonds, desaturating the fat. While using yeast cells to determine the functions of several newly discovered Arabidopsis desaturases, Heilmann and Shanklin noticed that one of the e...Combination of gene therapy and gene silencing prevents neurodegenerative disease
...is toxic to cells. Thus, a successful therapy must remove or suppress the disease-gene rather than simply ad...ty we face in treating dominant diseases is how to remove or silence genes," Davidson explained. "With our approach we can marry our gene therapy research usi...Melting ice cap gives urgency to new census of marine life project in Arctic Ocean
...ditional climatic warming that, if realized, could remove the ice cap and dramatically alter aquatic life in the region. The project is part of the 10-year, $1 billion Census of Marine Life (CoML), an unprecedented cooperative initiative involving leading marine scientists from every world region. The Arct...Clinical judgement still counts strongly alongside genetic testing
...pment can provide a source of satisfaction. It can remove doubt and uncertainty as to the condition itself. Some parents have real concerns over the possibility that they are in some way responsible for their children's problems. In particular they worry whether their lifestyle choices, such as smo...Study finds first evidence COX-2 enzymes can regulate DNA damage
...revention and that new drugs could be developed to remove COX-2 derived cellular genotoxins. ...Fox Chase discovery may help physicians diagnose, treat devastating childhood disease
...for this disease is early diagnosis and surgery to remove the diseased segment of the bowel. In general, the prognosis for most children after surgery is very good. However, a significant percentage of patients develop long-term complications or die of complications associated with the disease. "Currently...Nanoparticles illuminate brain tumors for days under MRI
...rovide a "stable imaging marker" during surgery to remove brain tumors, and it remains in the brain long enough for post-operative MR, even after surgical manipulation. The studies' findings have the potential to assist image-guided brain surgery and improve diagnosis of lesions caused by multiple sclerosis...Study helps satellites measure Great Lakes' water quality
...s apart was how well they enabled the engineers to remove the interference of atmospheric molecules. Over the ocean, carbon dioxide, ozone, and humidity are fairly constant, but amounts of these molecules fluctuate dramatically over lakes depending on the weather and human activity. The National Oceanic and......alves. They pulped the tissue, then filtered it to remove anything bigger than 200 nanometres and added the filtrate to a sterile medium. After a few weeks, the optical density of the liquid doubled, suggesting particles were self-replicating. Samples from aneurysms caused by a genetic disorder did not do ......and 80 percent are diagnosed long after surgery to remove their tumor is possible. The symptoms of pancreatic cancer often mimic other diseases, or are overlooked until it is too late. Only 3 percent of all patients live even five years after diagnosis, and although pancreatic cancer is only the 10th most c......ters, antibiotic treatment was used to selectively remove the specialization-associated symbiont, and found that the aphids remained specialized in its absence. In combination with genetic data presented in the paper, this implies that the aphid, rather than symbiont, genome is responsible for causing the o...