FSU scientist links iron imbalance to Parkinson's disease
...n deficiencies in healthy risk-free rodents led to decreasing levels of dopamine, the neurotransmitter critical to relaying brain messages that control both balance and movement. Dopamine levels fall as the brain cells or "neurons" responsible for transporting it begin to "commit suicide" at higher-than normal-...UCSD biologists discover chemical important in guiding visual system development
...the waves of electrical activity in the cells, and decreasing adenosine's action decreased their frequency. The electrical recordings showed that adenosine was acting directly on the retinal ganglion cells to alter how easily they could be excited. These results provide new insight into the mechan...Gene found to defend against environmental pollutants and pulmonary emphysema
...emphysema by upregulating antioxidant defenses and decreasing lung inflammation."...UNC Lineberger researchers identify molecular markers of aging
...p16INK4a and ARF can be substantially inhibited by decreasing caloric intake, a known retardant of aging. This result suggests that decreased expression of p16INK4a and ARF could mediate the known anti-aging effects of caloric restriction. "Our results suggest that going on a sho...Muscle loss from space travel, prolonged inactivity linked to two genes
...use causes muscles to lose protein in two ways: by decreasing the amount of protein synthesized and by increasing the rate at which muscle protein is degraded. The intracellular signals that drive muscle protein to these extremes, however, are not well known. When designing her study, Kandarian chose to i...Researchers discover new way to boost grain crops' drought tolerance
...reases the tolerance of grains crops to drought by decreasing the amount of an enzyme that is responsible for producing the plant hormone ethylene. UCR Biochemist Daniel R. Gallie led the research, funded by the U.S. Department of Agriculture, the National Science Foundation and the California Agricultural Exp...University of Texas at Austin researchers identify drug-tolerance mechanism in flies
...o make the nervous system fire more excitedly, and decreasing the number of channels would make the nervous system less excited," Atkinson said, noting that the slo channel responses likely act to compensate for other genes that are directly excited or sedated by drugs. "It's not going to be a simple story w...Study in Royal Society journal on possible genetic factors in social responsiblity
...reduce the variation of their food intake, thereby decreasing the risk of starvation. Contact: Dr Adam Lendvai, Dept of Ethology, Eotvos University, Pazmany P. s. 1/c BUDAPEST, H-1117, Hungary Paying for nectar with wingbeats: a new model of honeybee foraging by Dr AD Higginson and Dr FS G...New weapon in germ warfare: 'Jamming' bacteria signals stops cholera
...sing number of antibiotic resistant bacteria and a decreasing number of drugs in the pipeline," Dr McDougald says. "Thus, we need to find new approaches to treat bacterial infections." The furanone compounds are especially exciting as they do not kill the bacteria, but just stop them from expressing disease-cau...Study in Royal Society journal on first evidence for magnetic field detection in sharks
...s these properties can be expressed as a series of decreasing contributions. The leading two contributions are able to explain a range of optical effects. However, there are yet other effects which require the next order in the series. The relevant terms, satisfying the theoretical conditions, are determined...Vollum Institute discovery may unlock human genome
...ents in DNA that are responsible for increasing or decreasing the level of gene expression in cells. The technique involves linking DNA from a cell with the transcription factor protein, then isolating the complex through a process called immunoprecipitation. Strips of 21-nucleotide-long DNA are then released f...Brain tumor study reveals why treatment efforts fail in genetic disorder
...ould reverse abnormalities in cells without Nf1 by decreasing K-RAS activity. K-RAS activation also mimicked Nf1 loss in live mice. Gutmann's team previously discovered that mice without Nf1 genes in their astrocytes grow an abnormally large number of astrocytes in their brains, but they don't develop tumors u...JCI table of contents, 3 January 2005
...nti-inflammatory actions of adenosine, potentially decreasing its efficiency. Researchers are now focused on determining the role of each adenosine receptor so that they may design drugs to interact with specific receptors and reduce airway inflammation. As described in a report in the January 3 issue of th...Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats
...herapy might be used to "turn down" the mechanism, decreasing cholesterol levels and heart disease risk, explained Spiegelman, who is also a professor of cell biology at Harvard Medical School. Saturated fats are found in fatty cuts of meat, whole-milk dairy products, butter, and palm and coconut oils; they are...US government list of cancer-causing agents grows
... of both hepatitis B and hepatitis C infections is decreasing among United States residents. A vaccine is available for preventing hepatitis B infection but not hepatitis C infection. Infections can also be prevented by screening blood supplies, and by reducing contact with contaminated fluids in health care s...JCI Table of Contents, March 1, 2005
...oteins and their involvement in diabetes. Clearly, decreasing liver IRS expression has a direct causative role in the pathogenesis of diabetes and is not merely a correlative observation. TITLE: Complementary roles of IRS-1 and IRS-2 in the hepatic regulation of metabolism AUTHOR CONTACT:C. Ronald Kahn ...Mechanical tension helps shape lung development
...slow down lung development and capillary growth by decreasing the level of tension in the cytoskeleton, or speed up development by increasing the tension," says Ingber, the Judah Folkman Professor of Vascular Biology at Harvard Medical School. "This work could lead to novel therapeutic approaches to accelerate...Scientists discover how climate change causes the simultaneous boom or bust of multiple populations
...ecome synchronized during either the increasing or decreasing part of their abundance cycles." Hudson's research warns of the rapid ecological consequences of extreme and short-term fluctuations in weather conditions. "One of the characteristics of global climate change is that we are getting increased variati...California researchers help map human genetic variation across populations
...den by identifying a reduced set of tag SNPs, thus decreasing the difficulty and cost of association studies. That said, even when reducing to tag SNPs, we still need to be able to genotype at least several hundred thousand SNPs to have a comprehensive whole-genome association study." "This research provides a ...VCU researchers identify networks of genes responding to alcohol in the brain
...sed genes to be turned on more in one strain while decreasing expression of the same gene in the other mouse strain. Such differences are thought to be related to the mechanisms underlying the different behaviors that the B6 and D2 mice show with alcohol. Researchers also determined whether genes with changes i...