Scientists Identify Gene For Sexual Behavior In Male Flies
...f male courtship and copulation. "There has been speculation recently that no single gene could control acomplex behavior. This work shows that a gene can do so -- at leastin fruit flies," said Stanford biologist Bruce Baker , one of the fourprincipal investigators of the study. The gene fru governs the fl...Methane Deep In Ocean Crust Could Feed Chemical-Hungry Microorganisms
...h the seafloor. Such a large food source bolsters speculation about how pervasive these life forms might be. Kelley has been studying the source of these nutrients in what is called "layer three" of the oceanic crust. Located at a depth of about two and a half miles, this layer consists of rock that was onc...E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab
... the genes of bacteria that cause disease, fueling speculation that the K-12 strain of E. coli has relics of a pathogenic past or, alternatively, is a pathogen waiting to happen. The E. coli strain used in the Wisconsin study does not cause disease,but related strains are toxic and have been implicated i...New Method To Detect Metals Could Help Scientists
...kton in the ocean, but toxic to someshellfish, and speculation has been that metal ions may play a role in recentPfisteria outbreaks in coastal waters. Variations in these levels can result indrastic ecological changes. Current methods to measure free metal ions requiretesting in the laboratory, which can lead t...Genetically Engineered Mice Exhibit Anxiety, Offering Insight Into Role Of Serotonin In Brain
...he serotonin system protects from depression. "Our speculation is that both of these abnormalities--anxiety andanti-depressive responses--can be accounted for by disinhibition of serotoninsystem activity," said Tecott. The findings, he said, indicate that an altered serotonin receptor gene can leadto an inheri...UCSF Lab Makes Observation That Could Explain Ability Of Modified Cold Virus To Kill Cancer Cells
...ains intact. And this, saidMcCormick, "has led to speculation about the whole mechanism of action, theconcern being that maybe in cancer cells there really is no correlation betweenviral replication and p53 status." Now, however, building on a critical finding reported by researchers lastSeptember involving the...Dietary Lutein Inhibits Mammary Tumor Growth And Normalizes Immune Balance In Tumor-Bearing Mice
...mmune cells. Further researchis needed to confirm speculation that lutein may exert its anti-tumor activitythrough its immuno-stimulatory action. In addition to marigolds, lutein is found in dark leafy green vegetables likespinach and kale. Research for lutein has centered around its antioxidant andgene reg......ion of the domain has been conserved. "Our wildest speculation says SF-1 may have been one of the first primordialreceptors, and that it received signals via phosphorylation signals, not vialigands. When the AF-1 domain was moved down to the other end of the molecule inthese receptors, then the need for ligands ......evelopment, such as masculinization; however, it's speculation at this point.We will have to do additional studie...vidence that willeither support or dispel existing speculation about perceived environmental andeven dietary threats to developing fetuses. "We have to be able to......ds food biotechnology have been thesubject of much speculation lately. But this study, by George Gaskell, of theLondon School of Economics, and his colleagues, from the same institution andThe Science Museum in London, is one of the first to draw some conclusions usingempirical data. The survey itself was conduc...Scientists gather in Oregon to decide next steps of mid-ocean ridge exploration
...ur planet. Recognitionof these forms has prompted speculation that there are other parts of the solarsystem, especially the moons of Jupiter, that are capable of supporting similarlife forms. Scientists at the conference will identify opportunities and priorities for multi-disciplinary research in the n...Advanced light source reveals secrets of ribosome structure
...he brakes and steering wheel, followed by years of speculation as tohow they work. Eventually, someone lifts the hood, and a new era ofexperimentation and speculation ensues. Finally, they take the engine,transmission, etc. apart. At this point, there's a lot more st...Primitive primate makes the case for Asian anthropoid origins
... variety of primatespecies. This fueled scientific speculation that Africa, already known as thecradle of human origins, was the ancestral home of anthropoids as well. Inrecent years however, Asian anthropoids have begun to join the fossil ranks,with discoveries from Thailand, China, and Myanmar. The Asian fossi...Mutation on Y chromosome stops sperm production
...lated with sperm-producing cells." To see if that speculation is a reality, Page needs to determine USP9Y's function and identifymore genes that cause male infertility. The latter task will not be easy, as some genes on the Ychromosome come in multiple similar versions that confuse analysis, but Page's job will...Unique international conference to focus on effectiveness, safety of medicinal herbs
...what we know about these products and what's still speculation so that they can give informed advice," said Arab, professor of epidemiology and nutrition at the UNC-CH schools of medicine and public health. "Right now, the public has stopped asking, and even if they were, most health professionals do not feel th...Researchers link genetic defect to 'head-rush' disorder
...inked to orthostatic intolerance. "What had been speculation now clearly has a framework for looking carefully at other adrenergic (norepinephrine-related) genes in orthostatic intolerance," Blakely said. The findings are also important as the first to connect a neurotransmitter transporter genetic defect to...International experts to say what's known, what's speculation about medicinal herbs
...rize what's known about the herbs and what remains speculation at an 11:45 a.m. news conference Thursday (March 2). Reporters are invited to the briefing, which will be held in the Dogwood Room of the University of North Carolina at Chapel Hill'sWilliam and Ida Friday Center for Continuing Education. The event i...Amazon roads may lead to peril for rainforest
...pontaneous colonization, logging, hunting and land speculation that is almost impossible to stop. The only way to control these processes is to control where the roads are located." The article notes that already several domestic and international efforts are under way to protect the Amazon's environmen...Parasite's sperm-encryption keeps species apart
...at a bacterium was responsible, and there has been speculation ever since about whether the bacterium caused speciation of its host, or merely enhanced it. Our findings strongly suggest that Wolbachia was not just a bystander in the evolution of these wasps, says Werren. It looks like this parasite played an a...Electrophysiological differences of individuals at high risk for alcoholism
...rence or inhibition by drugs." "There has been speculation that the balance between GABA and NMDA affects the...onment. These findings provide fertile ground for speculation that GABAergic and NMDA neural system differences in such individuals may underlie this brain hypere...