Harvard, Duke Researchers Discover 'Off-switch' Inside Human Cells
...nts to understandhow the action of RGS10 itself is regulated within the cell. "While this discovery is clearly important in the signaling processes,we have a long way to go in understanding exactly how it functions,"Casey said. "When we understand that, we will be in a better positionto design selective and s...Bottom-up Ecological Processes Better For Clear Waters, Study Finds
...ence to suggest thatthe clarity of a lake could be regulated by manipulating this structureof the food web. For example, putting more large fish in the lake wouldmean more smaller fish would be eaten. With fewer smaller fish swimmingaround looking for dinner, the zooplankton would increase and eat more algae.T...Project Shows Native Bacteria Can Destroy Widespread Pollutant In Groundwater
...that they wanted to use toluene, which is itself a regulated compound. Unlike TCE, toluene is not carcinogenic, but drinking water standards specify a limit of one part per million. But at a fraction of that level -- about 25 parts per billion -- it gives water an unpleasant taste and smell. "Using toluene is ...Subtle Biotic Changes Have Big Environmental Impact
...ts from the changes in aquatic food webs that are regulated by the species of fish present in a particular lake," said Schindler. The changes in lakes, Schindler emphasized, will not have implications for global climate. However, the new understanding of the processes that alter the exchange of carbon dio...Scientists Bridge Gap In Cell Communication
...al Institute at UW-Madison. "The universe of genes regulated by this pathway is very large. I would guess hundreds of genes." "The missing link," explained Laughon, "has been how the signal switches genes on or off. This protein shuttles from the inner surface of the cell membrane right to the DNA, in......t-pesticide" labeling will berequired for all GMOs regulated under FIFRA. According to the EPA's Nov. 23,1994 ... safeguard the public, transgenic plants should be regulated as isalready being done via the FDA and the USDA," Sanford stated. "However, EPA'spolicy does not s...... Hunter found that the winter moth'spopulation was regulated largely by top-down forces, while thegreen oak leaf roller moth was affected almost exclusively fromthe bottom up. In fact, there were no measurable top-down effectsat all for the green oak leaf roller moth. Years ago, theseresults would have seemed ...Pea Plant Stem Growth Gene Cloned
... group demonstrated that tallness in pea plants is regulated by an acid called gibberellin, or GA1, with promotes stem growth. Gibberellic acid had been discovered in the 1950s, but it was not until the early 1980s that the group connected it to stem height. Now, the researchers have demonstrated that in the ...Plant-Based Therapies Examined For Colon Cancer Prevention
..., whichprompts the cells to "turn on" a program of regulated cell death calledapoptosis. NSAIDs, which include ibuprofen and naproxen, are among the mostcommonly used therapies worldwide for relieving pain and inflammation in jointsand muscles. Curcumin, notes Shiff, has been used for centuries as a...New Form Of Gene Therapy Holds Promise For The Future
...ne, showing that recombinant genes can actually be regulated in animals inresponse to inflammation." The investigators used a "reporter" gene - a gene that encodes an easilymeasured protein - to test the ability of a mouse's immune response to turn onthat gene. The reporter gene they used was firefly ...Banning Chemicals To Protect Ozone May Aggravate Global Warming
...igible. Nevertheless,they are still being tightly regulated and eventually the intention of therulings is that they be banned entirely." One such chemical, HCFC-123, is a high-performance refrigerant commonlyused in the cooling systems of large buildings. Some of the intended replacementsfor HCFC-123 not on...Low Cholesterol? Reduced Sodium? What Do These Terms Really Mean?
...ternationalUniversity, Miami, Florida The FDA has regulated food label nutrition claims such as "reduced sodiu...se terms, the FDA developed a set of standardsthat regulated the use of many nutritional claims. These standards mandated thatall processed food products covered...Hormone Control Of Rare Leukemia Sheds Light On Molecular Basis Of Cancer
...etics of this disease," says Lazar. Thereceptor is regulated by vitamin A, which is converted to the gene-contr...in binds the co-repressor in such a way that's not regulated by retinoicacid," says Lazar. "There have been many theories to explain the molecularbiology of this...Study Shows: Just Say NO To Bone Loss
...of the antigen recognized byMab 121F and how NO is regulated in osteoclasts, we may be able to develop newstrat...ntenzymes that produce the molecule, and these are regulated in different ways. One is called constitutive nitric oxide synthase, which makes NO to regulateblood...Environmental Impact Of Antifouling Paints And Tributyltin Regulations
...nds in antifouling paintsapplied to ships has been regulated in many countries for some time. Thissymposium of 25 papers discusses many aspects of tributyltin compounds in theenvironment, including environmental fate and analysis, biomonitors andbioavailability, and trends and risks. The research will be pre...Anti-TBT Regulations Shift Environmental Burden To Other Countries
...nds in antifouling paintsapplied to ships has been regulated in many countries for some time. Thissymposium of 25 papers discusses many aspects of tributyltin compounds in theenvironment, including environmental fate and analysis, biomonitors andbioavailability, and trends and risks. The research will be pre...High Blood Pressure Caused By Salt Retention May Be Related To Oncogenes Implicated In Cancer
... how the kidney cells communicate and how they are regulated tomaintain the complex balance of salt and fluid will help researchers betterunderstand how kidney diseases begin and how hypertension might be controlledmore successfully. The research was supported by a grant from the National Institutes o......ing DAZ and NDT80are the same genes or that DAZ is regulated by the equivalent of Rad17, butsince there's pachytene arrest in both, we may be on to something.""Their work makes me even more curious about what is regulating DAZ," saysReijo. "I think now we can put together the spermatogenesis pathways using th......, suggesting the process of skindevelopment may be regulated internally. Given these findings, UCSF researchers studied whether activators ofPPAR alpha and FXR accelerated the maturation of the SC and the epidermalbarrier in fetal rats during normal gestation. Rats, who have a normal gest...... In all eukaryotes, the cell cycle is regulated by enzymes called cyclin-dependent protein kinases (CDKs). Plants harbour several different CDKs that are all related to their yeast and animal counterpart. Activation of the cell cycle at various control points requires the...