Which came first, the moth or the cactus?
...ike the one between the moth and the cactus, and I take those models into the field and examine them empirically to find out how well they predict what really happens," Holland said. Traditional theory of such mutualistic interactions leads to predictions of unbounded population growth or instability an...Bursts of waves drive immune system 'soldiers' toward invaders
...l movement. We're getting our first glimpses that take us beyond knowing that this protein is important for cell motility to learning how it might organize the complex choreography of cell movement." The videotape of the unsuspected action shows wave upon wave advancing like a series of exploding fire...Gene regulation, not just genes, is what sets humans apart
... the Duke team believes this is the first study to take a genome-wide look at the evolution of regulatory sequences in different organisms. Other studies have found significant differences between these species in the coding regions that govern the immune system, the sense of smell and the manufacture o...Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
...ch participant. Then, the volunteers were asked to take four Polyphenon E capsules, for a total of 800 milligrams of EGCG, each morning on an empty stomach for four weeks and to abstain from drinking tea or eating many cruciferous vegetables, which contain other beneficial chemicals. Another blood sample ...Abnormal fat metabolism underlies heart problems in diabetic patients
...heart tissue, diabetic heart muscle cells actually take in excess lipids. But as these lipids enter cells they activate lipid-digesting enzymes. In previous studies, Gross and colleagues identified a particular lipid-digesting enzyme that becomes more active in diabetic heart muscle and contributes to the...Circadian clock controls plant growth hormone
...overy explains how plants can time their growth to take advantage of resources such as light and water, and suggests that many other processes may be influenced by circadian rhythms. Auxin tells shoots to grow away from the ground and toward light and water. Charles Darwin conducted early experiments th...deCODE discovers cause of major subtype of glaucoma
...o conduct additional studies to examine how we can take advantage of this finding to begin drug discovery, said Kari Stefansson, CEO of deCODE. The deCODE team discovered the variants by first analyzing more than 300,000 SNPs in Icelandic and Swedish glaucoma patients and control subjects, utilizing t...OHSU turns mouse into factory for human liver cells
...mediately. "There are a number of companies that take these leftover livers, process them and ship the c...e perfectly healthy, normal mice, and only when we take them off the NTBC do they get liver disease," Grompe said. "It's an easy system that any research la...European Science Foundation's Forward Look reaches out beyond the endless frontiers
...mprehensive recommendations, and their conclusions take into account the opportunities and weaknesses of the current structures and dynamics of the European Research Area. Moreover, the priorities suggested by these reports are more explicit in the sense that they are not just seen as new emerging themes ...Study finds gender differences in renal and other genes contributing to blood pressure
...stic and therapeutic indices for hypertension must take gender into account to provide an accurate assessment and treatment of hypertension. ...Satellite tracking reveals threats to Borneo pygmy elephants
... WWF says. Logging in elephant habitat should only take place if there is a long-term forest management plan in place, and oil palm plantations should be established on degraded, non-forested land devoid of elephants and orangutans, according to the conservation organization. ...Weizmann Institute scientists discover a control mechanism for metastasis
...h, the team mapped all of the genetic changes that take place in the cell after the growth factor signal is received. As they sifted through the enormous amount of data they received, including details on every protein level that went up or down, one family of proteins stood out. Tensins, as theyre are ca...Penn researchers discover how key protein stops inflammation
...inflammatory response, says Chen. Bcl-3 appears to take in information from the body and, in response to infection, interferes with p50 degradation to decrease inflammatory response. Inflammation is natural, says Chen. If we didnt respond to infectious agents, bacteria would kill us. However, the inflam...Taking a supplement of glycine helps prevent degenerative diseases such as arthrosis or osteoporosis
...le improvement in symptomology without the need to take pain-killers. A very common disease Arthrosis is the most common osteoarticulary problem in our society: more than 50% of the population suffer from it after the age of 65, and 80% of people over 75. It consists of a degeneration of the articul...American Chemical Society's Weekly PressPac -- Aug. 1, 2007
...ard for environmental toxicology. But such tests take years to complete, cant always be confidently extrapolated to humans, and require the use of laboratory animals. As a result, only a handful of commercial chemicals have gone through the complete battery of tests used by the Federal Governments Nati...Genetic factors strongly shape how peers are chosen
...antisocial behaviors, including drug abuse, has to take into account self-selection into deviant versus benign environments, he said. The effects of peers in adolescence can be quite powerful, either encouraging or discouraging deviant behaviors. Peers also provide access to substances of abuse....Research team enlightens the reasons for severe blindness
... controls ciliary transport processes, or directly take part in them. Disruptions in the cooperation of such molecular networks at the protein interaction level often build the molecular basis of diseases. In the case of ciliary diseases (ciliopathies), the restricted functionalities of cilium cause deafn...Anthrax bacterium's deadly secrets probed
..., for example, secretes proteins that enable it to take up nutrients from the soil. A disease-causing bacterium may secrete proteins that subvert the hosts immune system, enabling the bacterium to infect cells or survive in the bloodstream. Knowledge of a pathogenic bacteriums secreted proteins and how t...Not all embryonic stem cell lines are created equal
...r study. And once we understand the causes, we can take them into account in generating new cell lines that will be better defined and enable more reproducible applications....Genetic analysis finds greater threat in frog-killing fungus
...are a factor, then there may be precautions we can take to contain their spread," said Morgan. "This could involve cleaning shoes before moving from one infected site to another. Some fungi produce spores during certain times of the year. If that is the case with this fungus, we could consider restricting...